[Bug c/12826] New: Optimizer removes reference through volatile pointer

[Bug c/12826] New: Optimizer removes reference through volatile pointer

[lee at bustech dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

           Summary: Optimizer removes reference through volatile pointer
           Product: gcc
           Version: 2.96 (redhat)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lee at bustech dot com
                CC: gcc-bugs at gcc dot gnu dot org

(Using standard gcc shipped with RedHat 7.3 Linux)

$ gcc -v -save-temps -O -S t.c
Reading specs from /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs
gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-113)
 /usr/lib/gcc-lib/i386-redhat-linux/2.96/cpp0 -lang-c -v -D__GNUC__=2
-D__GNUC_MINOR__=96 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__
-D__unix__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__OPTIMIZE__
-Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -D__tune_i386__ t.c t.i
GNU CPP version 2.96 20000731 (Red Hat Linux 7.3 2.96-113) (cpplib) (i386 Linux/ELF)
ignoring nonexistent directory "/usr/i386-redhat-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc-lib/i386-redhat-linux/2.96/include
 /usr/include
End of search list.
 /usr/lib/gcc-lib/i386-redhat-linux/2.96/cc1 t.i -quiet -dumpbase t.c -O
-version -o t.s
GNU C version 2.96 20000731 (Red Hat Linux 7.3 2.96-113) (i386-redhat-linux)
compiled by GNU C version 2.96 20000731 (Red Hat Linux 7.3 2.96-113).

Expected behavior:
    Should not optimize out the read of *sp in the loop.
Actual behavior:
    Doesn't read *sp in the loop.

[Bug c/12826] Optimizer removes reference through volatile pointer

[lee at bustech dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From lee at bustech dot com  2003-10-29 14:52 -------
Created an attachment (id=5016)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5016&action=view)
Source file for bug

[Bug c/12826] Optimizer removes reference through volatile pointer

[falk at debian dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From falk at debian dot org  2003-10-29 15:04 -------
As I see it, *sp is not volatile, even if you access it with a pointer to 
volatile. It's the volatility of the *object* that counts. So IMHO this is not a 
bug.

[Bug c/12826] Optimizer removes reference through volatile pointer

[bangerth at dealii dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826


bangerth at dealii dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


------- Additional Comments From bangerth at dealii dot org  2003-10-29 16:16 -------
I agree with Falk. Of course, volatile char * is a pointer to 
a volatile char, but you are accessing a non-volatile object
through a pointer to a volatile char. That doesn't change the
non-volatility of the object and gcc should be free to optimize
away the access. If you want to retain the read in the loop,
declare the object as volatile.

W.

[Bug c/12826] Optimizer removes reference through volatile pointer

[lee at bustech dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From lee at bustech dot com  2003-10-29 16:00 -------
Thanks for your reply, cdecl gives me:

cdecl> explain volatile char *sp
declare sp as pointer to volatile char

Which is what I want, a volatile char which should be read every time via sp. If
I declare sp as "volatile char *" the code reads *sp as expected. It just seems
that a cast should be equivalent to a declaration here...

Lee

P.S. Changing the assignment of "*sp = 0xE8" to "* (volatile char *) sp = 0xE8"
also fixes the problem, which seems kind of odd.

[Bug c/12826] Optimizer removes reference through volatile pointer

[falk dot hueffner at student dot uni-tuebingen dot de]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From falk dot hueffner at student dot uni-tuebingen dot de  2003-10-29 16:18 -------
Subject: Re:  Optimizer removes reference through volatile pointer

"lee at bustech dot com" <gcc-bugzilla@gcc.gnu.org> writes:

> Thanks for your reply, cdecl gives me:
> 
> cdecl> explain volatile char *sp
> declare sp as pointer to volatile char
> 
> Which is what I want, a volatile char which should be read every
> time via sp. If I declare sp as "volatile char *" the code reads *sp
> as expected. It just seems that a cast should be equivalent to a
> declaration here...

It's not. Or would you also expect:

int x = 3, *p = &x;
f((const int *) p);
x = 4;

to be rejected by the compiler? As I said, it's the volatility of the
*object* that is relevant.

> P.S. Changing the assignment of "*sp = 0xE8" to "* (volatile char *)
> sp = 0xE8" also fixes the problem, which seems kind of odd.

I wouldn't rely on that.

[Bug c/12826] Optimizer removes reference through volatile pointer

[lee at bustech dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From lee at bustech dot com  2003-10-29 16:39 -------
> ... you are accessing a non-volatile object
> through a pointer to a volatile char. That doesn't change the
> non-volatility of the object

But it does change the object's volatility to change the assignment of "*sp =
0xE8" to "* (volatile char *) sp = 0xE8". Gcc should at least be consistent
here, it seems...

> As I said, it's the volatility of the *object* that is relevant.

I'm not sure what you mean here, the char is what I want to be volatile, and the
cast seems to express that for me.

Thanks,
Lee

[Bug c/12826] Optimizer removes reference through volatile pointer

[bangerth at dealii dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From bangerth at dealii dot org  2003-10-29 17:10 -------
> But it does change the object's volatility to change the assignment of "*sp =
> 0xE8" to "* (volatile char *) sp = 0xE8".

No, it doesn't. The type of a variable is a static quantity and not changed by
how you assign a value to it. You declared sp to be non-volatile, so it will
always be non-volatile.

> Gcc should at least be consistent
> here, it seems...

gcc is missing a chance to optimize. That's not a bug.

> I'm not sure what you mean here, the char is what I want to be volatile,

Then _declare_ it to be volatile!

W.

[Bug c/12826] Optimizer removes reference through volatile pointer

[falk dot hueffner at student dot uni-tuebingen dot de]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826



------- Additional Comments From falk dot hueffner at student dot uni-tuebingen dot de  2003-10-29 17:11 -------
Subject: Re:  Optimizer removes reference through volatile pointer

"lee at bustech dot com" <gcc-bugzilla@gcc.gnu.org> writes:

> > ... you are accessing a non-volatile object through a pointer to a
> > volatile char. That doesn't change the non-volatility of the
> > object
> 
> But it does change the object's volatility to change the assignment of "*sp =
> 0xE8" to "* (volatile char *) sp = 0xE8". Gcc should at least be consistent
> here, it seems...

It doesn't change the object's volatility; it only inhibits an
optimization. The optimizers don't work well in the presence of
volatile, and in this particular case, I don't believe it's worth
improving them.

> > As I said, it's the volatility of the *object* that is relevant.
> 
> I'm not sure what you mean here, the char is what I want to be
> volatile, and the cast seems to express that for me.

But it doesn't, as I've explained. Why didn't the example with "const"
convince you?

[Bug c/12826] Optimizer removes reference through volatile pointer

[rth at gcc dot gnu dot org]

------- Additional Comments From rth at gcc dot gnu dot org  2003-11-09 07:08 -------
I don't agree that this is invalid.  I don't see this as any different from

  void f(signed char *sp)
  {
    int status;
    *sp = -1;
    status = *(unsigned char *) sp;
    if (status < 0)
      abort ();
  }

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
         Resolution|INVALID                     |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.4 Regression] Optimizer removes reference through volatile pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-11-09 18:50 -------
It works on the 3.3 branch but does not work the mainline (20031108).

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |optimization
     Ever Confirmed|                            |1
           Keywords|                            |wrong-code
   Last reconfirmed|0000-00-00 00:00:00         |2003-11-09 18:50:27
               date|                            |
            Summary|Optimizer removes reference |[3.4 Regression] Optimizer
                   |through volatile pointer    |removes reference through
                   |                            |volatile pointer
   Target Milestone|---                         |3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.4 Regression] Optimizer removes reference through volatile pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-11-09 18:59 -------
On the mainline, the problem comes from the loop optimizer, .13.loop.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.4 Regression] Optimizer removes reference through volatile pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-11-29 21:35 -------
It is jump bypass which is getting rid of the load.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-11-09 18:50:27         |2003-11-29 21:35:53
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.4 Regression] Optimizer removes reference through volatile pointer

[lee at bustech dot com]

------- Additional Comments From lee at bustech dot com  2003-12-01 14:24 -------
Subject: Re:  [3.4 Regression] Optimizer removes reference
 through volatile pointer

pinskia at gcc dot gnu dot org wrote:

>------- Additional Comments From pinskia at gcc dot gnu dot org  2003-11-29 21:35 -------
>It is jump bypass which is getting rid of the load.
>
>  
>
Thanks for your work on this...

Lee



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3/3.4 Regression] Optimizer removes reference through volatile pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2003-12-20 04:00 -------
It was busted on the mainline: betweem 3.3 20020914  and 3.3 20020921.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-11-29 21:35:53         |2003-12-20 04:00:28
               date|                            |
            Summary|[3.4 Regression] Optimizer  |[3.3/3.4 Regression]
                   |removes reference through   |Optimizer removes reference
                   |volatile pointer            |through volatile pointer
            Version|2.96 (redhat)               |3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3/3.4 Regression] Optimizer removes reference through volatile pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-10 22:59 -------
Patch here: <http://gcc.gnu.org/ml/gcc-patches/2004-01/msg00796.html>.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3/3.4 Regression] Optimizer removes reference through volatile pointer

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-12 16:25 -------
Subject: Bug 12826

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	hubicka@gcc.gnu.org	2004-01-12 16:25:32

Modified files:
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: 20040112-1.c 
	gcc/testsuite/gcc.dg/debug/dwarf2: dwarf-die1.c dwarf-die2.c 
	                                   dwarf-die3.c dwarf-die5.c 
	                                   dwarf-die6.c dwarf-die7.c 
	                                   dwarf2.exp 
Removed files:
	gcc/testsuite/gcc.dg: dwarf-die1.c dwarf-die2.c dwarf-die3.c 
	                      dwarf-die5.c dwarf-die6.c dwarf-die7.c 

Log message:
	PR opt/12826
	* gcc.dg/20040112-1.c: New.
	
	* gcc.dg/dwarf-die[1-7].c: Move to...
	* gcc.dg/debug/dwarf2/dwarf-die[1-7].c: ... here.
	* gcc.dg/debug/dwarf2/dwarf2.exp: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3363&r2=1.3364
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20040112-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/dwarf-die1.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/dwarf-die2.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/dwarf-die3.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/dwarf-die5.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/dwarf-die6.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/dwarf-die7.c.diff?cvsroot=gcc&r1=1.1&r2=NONE
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die5.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die6.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf-die7.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/debug/dwarf2/dwarf2.exp.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3/3.4 Regression] Optimizer removes reference through volatile pointer

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-12 16:32 -------
Subject: Bug 12826

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	hubicka@gcc.gnu.org	2004-01-12 16:32:15

Modified files:
	gcc            : ChangeLog cfgcleanup.c cfgrtl.c loop.c rtl.h 
	                 rtlanal.c 

Log message:
	PR opt/12826
	* loop.c (insert_loop_mem): Preffer VOLATILE memory references to be
	stored.
	
	PR opt/12863
	* cfgcleanup.c (label_is_jump_target_p): Move to...
	* rtlanal.c (label_is_jump_target_p): ... here.
	* cfgrtl.c (cfg_layout_redirect_edge_and_branch):  Fix redirecting of fallthru
	edges unified with branch edges.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.2240&r2=2.2241
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgcleanup.c.diff?cvsroot=gcc&r1=1.97&r2=1.98
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgrtl.c.diff?cvsroot=gcc&r1=1.101&r2=1.102
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop.c.diff?cvsroot=gcc&r1=1.485&r2=1.486
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/rtl.h.diff?cvsroot=gcc&r1=1.446&r2=1.447
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/rtlanal.c.diff?cvsroot=gcc&r1=1.170&r2=1.171



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3 Regression] Optimizer removes reference through volatile pointer

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-12 17:29 -------
Only a 3.3.3 Regression now.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4 Regression]        |[3.3 Regression] Optimizer
                   |Optimizer removes reference |removes reference through
                   |through volatile pointer    |volatile pointer
   Target Milestone|3.4.0                       |3.3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3 Regression] Optimizer removes reference through volatile pointer

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-21 02:41 -------
Subject: Bug 12826

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	gdr@gcc.gnu.org	2004-01-21 02:41:00

Modified files:
	gcc            : ChangeLog loop.c 
Added files:
	gcc/testsuite/gcc.dg: 20040112-1.c 

Log message:
	Backport from mainline
	
	2004-01-10  Jan Hubicka  <jh@suse.cz>
	PR opt/12826
	* loop.c (insert_loop_mem): Prefer VOLATILE memory references
	to be
	stored.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.886&r2=1.16114.2.887
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/loop.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.433.2.11&r2=1.433.2.12
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20040112-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.8.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3 Regression] Optimizer removes reference through volatile pointer

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-01-21 02:42 -------
Backported patch from mainline

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826

[Bug optimization/12826] [3.3 Regression] Optimizer removes reference through volatile pointer

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-27 12:59 -------
Subject: Bug 12826

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	amylaar@gcc.gnu.org	2004-01-27 12:49:31

Modified files:
	gcc            : ChangeLog Makefile.in bt-load.c common.opt 
	                 flags.h opts.c toplev.c 
	gcc/doc        : invoke.texi 

Log message:
	* Makefile.in (bt-load.o): Depend on except.h.
	* bt-load.c (except.h): #include.
	(compute_defs_uses_and_gen): If insn at end of BB can throw
	within this function, consider registers used by it unavailable for
	btr migration.
	(move_btr_def): If insn at end of BB can throw, insert before rather
	than after.
	
	* flags.h (flag_btr_bb_exclusive): Declare.
	* toplev.c (flag_btr_bb_exclusive): New variable.
	(f_options): Add btr-bb-exclusive.
	* bt-load.c (augment_live_range): Restore old behaviour if
	flag_btr_bb_exclusive is set.
	* common.opt: Add entry for -fbtr-bb-exclusive.
	* opts.c (common_handle_options): Same.
	* doc/invoke.texi: Document -fbtr-bb-exclusive.
	
	* bt-load.c (btrs_live_at_end): New variable.
	(compute_defs_uses_and_gen): Compute its pointed-to array.
	(clear_btr_from_live_range, add_btr_to_live_range): Update it.
	(augment_live_range): When augmenting with a new dominator,
	use only its btrs_live_at_end set, but also add in the full set
	of the old dominator.
	(btr_def_live_range): Use btrs_live_at_end.
	(move_btr_def): Set other_btr_uses_before_def, and move new set
	to the end of the basic block, if appropriate.
	(migrate_btr_defs): Allocate and free btrs_live_at_end.
	
	* bt-load.c (basic_block_freq): Remove outdated comment.
	
	2004-01-27  Alan Modra  <amodra@bigpond.net.au>
	
	* config/rs6000/rs6000.h: Correct target_flags free bits comment.
	(PREDICATE_CODES): Remove duplicate.
	* config/rs6000/linux64.h (CPP_SYSV_SPEC): Don't define.
	(SUBSUBTARGET_OVERRIDE_OPTIONS): Disallow 32 bit TARGET_PROFILE_KERNEL.
	(MASK_PROFILE_KERNEL): Adjust define.
	
	2004-01-27  Jakub Jelinek  <jakub@redhat.com>
	
	* config/i386/i386.c (ix86_constant_alignment): Decrease alignment
	of long string literals from 32 bytes to sizeof (void *) when !-Os
	and to 1 with -Os.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.c (h8300_tiny_constant_address_p): Accept
	constant addresses in the normal mode.
	
	2004-01-26  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
	
	* system.h (CHAR_BITFIELD): Delete.
	(BOOL_BITFIELD): New.
	* c-decl.c (c_scope): Use BOOL_BITFIELD.
	* gengtype-lex.l: Recognize BOOL_BITFIELD instead of CHAR_BITFIELD.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/arc/arc.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(arc_return_in_memory): Likewise.
	* config/arc/arc.h (PROMOTE_FUNCTION_ARGS): Remove.
	(PROMOTE_FUNCTION_RETURN): Likewise.
	(RETURN_IN_MEMORY): Likewise.
	(STRUCT_VALUE): Likewise.
	
	2004-01-26  Richard Henderson  <rth@redhat.com>
	
	* c-parse.in (extension): Use itype.
	(SAVE_EXT_FLAGS): Don't allocate a tree.
	(RESTORE_EXT_FLAGS): Don't read a tree.
	
	2004-01-26  Jan Hubicka  <jh@suse.cz>
	
	* cselib.c (discard_useless_values):  Clear out value pointer pointing
	to datastructure to be recycled.
	
	2004-01-25  Jan Hubicka  <jh@suse.cz>
	
	* genextract.c (main): Do not output the memset when not checking.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.c (h8300_tiny_constant_address_p): Use a
	switch statement instead of a chain of if statements.
	
	2004-01-26  Jeff Law  <law@redhat.com>
	
	* doc/contrib.texi: Minor cleanup for Paolo Carlini's entry.  Add
	acute accents for Petur Runolfsson's entry.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/pdp11/pdp11.c (TARGET_STRUCT_VALUE_RTX): New.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	* config/pdp11/pdp11.h (STRUCT_VALUE): Remove.
	(RETURN_IN_MEMORY): Likewise.
	
	2004-01-26  Fariborz Jahanian <fjahanian@apple.com>
	
	* config/rs6000/rs6000.c (rs6000_emit_move): split slow
	unaligned load/store into smaller loads and stores.
	
	2004-01-26  Fariborz Jahanian <fjahanian@apple.com>
	
	* function.c (assign_parms): Do not assign
	long long argument to memory in prologue if
	is it loaded into register.
	
	2004-01-26  Fariborz Jahanian <fjahanian@apple.com>
	
	PR middle-end/13779
	* expr.c (emit_group_load): split constant
	correctly into register components of PARALLEL insn.
	
	2004-01-26  Fariborz Jahanian <fjahanian@apple.com>
	
	* gcc/config/rs6000/rs6000.md (save_stack_nonlocal):
	Use adjust_address_nv directly with appropriate mode.
	(restore_stack_nonlocal): Ditto.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/xtensa/xtensa-protos.h: Remove the prototype for
	xtensa_builtin_saveregs.
	* config/xtensa/xtensa.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_EXPAND_BUILTIN_SAVEREGS): Likewise.
	(xtensa_builtin_saveregs): Make it static.
	(xtensa_return_in_memory): New.
	* config/xtensa/xtensa.h (PROMOTE_FUNCTION_ARGS: Remove.
	(PROMOTE_FUNCTION_RETURN): Likewise.
	(PROMOTE_PROTOTYPES): Likewise.
	(STRUCT_VALUE): Likewise.
	(RETURN_IN_MEMORY): Likewise.
	(EXPAND_BUILTIN_SAVEREGS): Likewise.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/arm/arm.c (TARGET_SETUP_INCOMING_VARARGS): New.
	(arm_setup_incoming_varargs): Likewise.
	* config/arm/arm.h (SETUP_INCOMING_VARARGS): Remove.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/cris/cris.c (TARGET_SETUP_INCOMING_VARARGS): New.
	(cris_setup_incoming_varargs): Likewise.
	* config/cris/cris.h (SETUP_INCOMING_VARARGS): Remove.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/ns32k/ns32k.c (TARGET_STRUCT_VALUE_RTX): New.
	(ns32k_struct_value_rtx): Likewise.
	* config/ns32k/ns32k.h (STRUCT_VALUE_REGNUM): Rename to
	NS32K_STRUCT_VALUE_REGNUM.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/arm/arm.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(arm_struct_value_rtx): Likewise.
	* config/arm/arm.h (PROMOTE_FUNCTION_ARGS): Remove.
	(STRUCT_VALUE): Likewise.
	(STRUCT_VALUE_REGNUM): Likewise.
	(PROMOTE_PROTOTYPES): Likewise.
	
	2004-01-26  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/ia64/ia64-protos.h: Remove the prototype for
	ia64_setup_incoming_varargs and ia64_return_in_memory.
	* config/ia64/ia64.c (TARGET_STRUCT_VALUE_RTX): New.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_SETUP_INCOMING_VARARGS): Likewise.
	(TARGET_STRICT_ARGUMENT_NAMING): Likewise.
	(ia64_setup_incoming_varargs): Adjust the arguments to meet
	the requirement of TARGET_SETUP_INCOMING_VARARGS.
	(ia64_return_in_memory): Make it static.  Change the return
	type to bool from int.  Add an argument.
	(ia64_struct_value_rtx): New.
	* config/ia64/ia64.h: Remove commented-out definitions of
	PROMOTE_FUNCTION_ARGS, PROMOTE_FUNCTION_RETURN, and
	PROMOTE_PROTOTYPES.
	(RETURN_IN_MEMORY): Remove.
	(STRUCT_VALUE_REGNUM): Likewise.
	(STRICT_ARGUMENT_NAMING): Likewise.
	
	2004-01-26  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	PR target/13666
	* config/sparc/sparc.c (function_arg_union_value): New function.
	(function_arg): Use it to deal with unions.
	(function_value): Likewise.  Define 'regbase' only for ARCH64.
	Replace a conditional statement by a simpler one.
	
	2004-01-26  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips.c (mips16_optimize_gp): Delete.
	(mips_reorg): Don't call it.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.md (addqi3_noclobber): Move up pecking order.
	(floatunsqihf2): Remove operand 6.
	(fixhfqi_set, fix_trunchfqi2, fixuns_trunchfqi2): Group with other
	fix patterns.
	(ldi_conditional, ldf_conditional): Validate operands.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.h (BCT_CHECK_LOOP_ITERATIONS): Remove.
	(HAVE_GAS_HIDDEN): Undefine as interim measure.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.c (c4x_legitimate_address_p):  Invalidate direct
	memory references if TARGET_EXPOSE_LDP nonzero.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.c (legitimize_operands): Truncate invalid shift counts.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.c (c4x_valid_operands): More aggressively reject
	invalid operand combinations.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.c (c4x_check_legit_addr): Rename to
	c4x_legitimate_address_p.  Fix post_modify check.
	
	* config/c4x/c4x-protos.h (c4x_check_legit_addr): Adjust.
	* config/c4x/c4x.h (c4x_check_legit_addr): Adjust.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/pa/pa-protos.h: Remove the prototype for
	hppa_builtin_saveregs.  Add a prototype for
	pa_return_in_memory.
	* config/pa/pa.c (TARGET_PROMOTE_FUNCTION_RETURN): New.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_EXPAND_BUILTIN_SAVEREGS): Likewise.
	(pa_struct_value_rtx): Likewise.
	(pa_return_in_memory): Likewise.
	* config/pa/pa.h (STRUCT_VALUE_REGNUM): Rename to
	PA_STRUCT_VALUE_REGNUM.
	(INIT_CUMULATIVE_ARGS): Use pa_return_in_memory.
	(EXPAND_BUILTIN_SAVEREGS): Remove.
	(PROMOTE_PROTOTYPES): Likewise.
	(PROMOTE_FUNCTION_RETURN): Likewise.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/vax/vax.c (TARGET_PROMOTE_PROTOTYPES): New.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(vax_struct_value_rtx): Likewise.
	* config/vax/vax.h (STRUCT_VALUE_REGNUM): Rename to
	VAX_STRUCT_VALUE_REGNUM.
	(PROMOTE_PROTOTYPES): Remove.
	
	2004-01-26  Michael Hayes  <m.hayes@elec.canterbury.ac.nz>
	
	* config/c4x/c4x.h (LEGITIMIZE_RELOAD_ADDRESS):  Handle symref.
	
	2003-04-25  Chris Demetriou  <cgd@broadcom.com>
	
	* config/mips/mips.h (ISA_HAS_HILO_INTERLOCKS): MIPS32, MIPS32r2,
	and MIPS64 have HI/LO interlocks.  Update comment.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/stormy16/stormy16-protos.h: Remove the prototype for
	xstormy16_setup_incoming_varargs.
	* config/stormy16/stormy16.c
	(xstormy16_setup_incoming_varargs): Remove.
	(xstormy16_return_in_memory): New.
	(TARGET_PROMOTE_FUNCTION_ARGS): Likewise.
	(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	* config/stormy16/stormy16.h (PROMOTE_FUNCTION_ARGS): Remove.
	(PROMOTE_FUNCTION_RETURN): Likewise
	(PROMOTE_PROTOTYPES): Likewise
	(RETURN_IN_MEMORY): Likewise
	(STRUCT_VALUE): Likewise
	(SETUP_INCOMING_VARARGS): Likewise
	
	2004-01-25  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips.c (mips_offset_within_object_p): New function.
	(mips_symbolic_constant_p): Use it in the SYMBOL_SMALL_DATA and
	SYMBOL_CONSTANT_POOL cases.  Also use it for SYMBOL_GENERAL if the
	ABI has 64-bit pointers and the object file only allows 32-bit symbols.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/sh/sh.h (PROMOTE_FUNCTION_ARGS): Remove.
	(PROMOTE_FUNCTION_RETURN): Likewise.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mn10300/mn10300-protos.h: Remove the prototype for
	mn10300_builtin_saveregs.
	* config/mn10300/mn10300.c (TARGET_PROMOTE_PROTOTYPES): New.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_EXPAND_BUILTIN_SAVEREGS): Likewise.
	(mn10300_return_in_memory): Likewise.
	(mn10300_builtin_saveregs): Make it static.
	* config/mn10300/mn10300.h (PROMOTE_PROTOTYPES): Remove.
	(RETURN_IN_MEMORY): Likewise.
	(STRUCT_VALUE): Likewise.
	(EXPAND_BUILTIN_SAVEREGS): Likewise.
	
	2004-01-25  Eric Botcazou  <ebotcazou@act-europe.fr>
	
	PR bootstrap/13853
	* cfgcleanup.c (try_optimize_cfg): Explicitly test against 0.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/lib1funcs.asm (divnorm, modnorm): Optimize by
	using ccr.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/i860/i860-protos.h: Remove the prototype for
	i860_saveregs.
	* config/i860/i860.c (i860_saveregs): Make it static.
	(i860_struct_value_rtx): New.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_EXPAND_BUILTIN_SAVEREGS): Likewise.
	* config/i860/i860.h (STRUCT_VALUE_REGNUM): Rename to
	I860_STRUCT_VALUE_REGNUM.
	(EXPAND_BUILTIN_SAVEREGS): Remove.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/m68hc11/m68hc11.c (TARGET_STRUCT_VALUE_RTX): New.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(m68hc11_struct_value_rtx): Likewise.
	(m68hc11_return_in_memory): Likewise.
	* config/m68hc11/m68hc11.h: Remove a commented-out definition
	of PROMOTE_PROTOTYPES.
	(RETURN_IN_MEMORY): Remove.
	(STRUCT_VALUE_REGNUM): Likewise.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mmix/mmix-protos.h: Remove the prototype for
	mmix_setup_incoming_varargs.
	* config/mmix/mmix.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_SETUP_INCOMING_VARARGS): Likewise.
	(mmix_setup_incoming_varargs): Make it static.
	(mmix_struct_value_rtx): New.
	* config/mmix/mmix.h (PROMOTE_FUNCTION_ARGS): Remove.
	Remove a commented-out definition of PROMOTE_FUNCTION_RETURN.
	(STRUCT_VALUE_REGNUM): Remove.
	(SETUP_INCOMING_VARARGS): Likewise.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mips/mips-protos.h: Remove the prototypes for
	mips_setup_incoming_varargs and mips_return_in_memory.
	* config/mips/mips.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
	(TARGET_PROMOTE_PROTOTYPES): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_SETUP_INCOMING_VARARGS): Likewise.
	(TARGET_STRICT_ARGUMENT_NAMING): Likewise.
	(mips_setup_incoming_varargs): Match the prototype for
	TARGET_SETUP_INCOMING_VARARGS.
	(mips_return_in_memory): Make it static.  Add argument fntype.
	(mips_strict_argument_naming): New.
	* config/mips/mips.h (PROMOTE_PROTOTYPES): Remove.
	(PROMOTE_FUNCTION_ARGS): Likewise.
	(PROMOTE_FUNCTION_RETURN): Likewise.
	(STRUCT_VALUE): Likewise.
	(RETURN_IN_MEMORY): Likewise.
	(SETUP_INCOMING_VARARGS): Likewise.
	(STRICT_ARGUMENT_NAMING): Likewise.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/ip2k/ip2k.c (TARGET_STRUCT_VALUE_RTX): New.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_SETUP_INCOMING_VARARGS): Likewise.
	(ip2k_return_in_memory): Likewise.
	(ip2k_setup_incoming_varargs): Likewise.
	* config/ip2k/ip2k.h (RETURN_IN_MEMORY): Remove.
	(STRUCT_VALUE): Likewise.
	(STRUCT_VALUE_INCOMING): Likewise.
	(SETUP_INCOMING_VARARGS): Likewise.
	
	2004-01-25  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/avr/avr.c (TARGET_STRUCT_VALUE_RTX): New.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	(TARGET_STRICT_ARGUMENT_NAMING): Likewise.
	(avr_return_in_memory): Remove.
	* config/avr/avr.h (RETURN_IN_MEMORY): Remove.
	(STRUCT_VALUE): Likewise.
	(STRUCT_VALUE_INCOMING): Likewise.
	(STRICT_ARGUMENT_NAMING): Likewise.
	
	2004-01-25  Jan Hubicka  <jh@suse.cz>
	
	* combine.c (recog_for_combine): Avoid allocating unnecesary RTX.
	
	2004-01-25  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips-protos.h (mips_reg_mode_ok_for_base_p): Delete.
	(mips_regno_mode_ok_for_base_p): Declare.
	* config/mips/mips.h (ARG_POINTER_REGNUM): Renumber to 77.
	(FRAME_POINTER_REGNUM): Renumber to 78.
	(FIRST_PSEUDO_REGISTER): Update comment accordingly.
	(BASE_REG_P, GP_REG_OR_PSEUDO_STRICT_P): Delete.
	(GP_REG_OR_PSEUDO_NONSTRICT_P): Delete.
	(REGNO_MODE_OK_FOR_BASE_P): Use mips_regno_mode_ok_for_base_p.
	(REG_MODE_OK_FOR_BASE_P): Likewise.
	* config/mips/mips.c (mips_reg_names, mips_sw_reg_names): Change
	entry for 77 to "$arg" and entry for 78 to "$frame".
	(mips_regno_to_class): Map 77 and 78 to ALL_REGS.
	(mips_reg_mode_ok_for_base_p): Remove.
	(mips_regno_mode_ok_for_base_p): New function, derived from old
	BASE_REG_P macro.  Don't enforce the mips16 stack pointer
	restrictions unless we're being strict.
	(mips_valid_base_register_p): Use mips_regno_mode_ok_for_base_p.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* c-common.h: Fix comment typos.
	* c-decl.c: Likewise.
	* cgraphunit.c: Likewise.
	* combine.c: Likewise.
	* et-forest.c: Likewise.
	* flow.c: Likewise.
	* function.c: Likewise.
	* ifcvt.c: Likewise.
	* integrate.c: Likewise.
	* jump.c: Likewise.
	* postreload.c: Likewise.
	* varray.c: Likewise.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/frontends.texi: Update copyright.
	* doc/gcov.texi: Likewise.
	* doc/gty.texi: Likewise.
	* doc/sourcebuild.texi: Likewise.
	* doc/standards.texi: Likewise.
	
	2004-01-24  Herman A.J. ten Brugge  <hermantenbrugge@home.nl>
	
	PR target/12978
	* c4x.md: (movstrqi*) Use match_scratch instead of match_dup.
	Remove movstrqi_small because it conflicts with movstrqi_large.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/cris/cris.c (TARGET_PROMOTE_FUNCTION_ARGS): New.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(cris_struct_value_rtx): Likewise.
	* config/cris/cris.h (PROMOTE_FUNCTION_ARGS): Remove.
	(CRIS_STACKADJ_REG): Use CRIS_STRUCT_VALUE_REGNUM instead of
	STRUCT_VALUE_REGNUM.
	(STRUCT_VALUE_REGNUM): Rename to CRIS_STRUCT_VALUE_REGNUM.
	
	2004-01-24  Ian Lance Taylor  <ian@wasabisystems.com>
	
	PR bootstrap/13848
	* cse.c (cse_cc_succs): Change the mode of the source expression
	as soon as decide we need a new mode.  Don't permit changing modes
	if we found a match in a successor block.
	(cse_condition_code_reg): Save original mode of source expression
	so that we know whether we have to change the mode in other
	insns.
	
	2004-01-24  Jan Hubicka  <jh@suse.cz>
	
	* emit-rtl.c (change_address, adjust_address_1, offset_address,
	widen_memory_access):  Return early when there is nothing to change.
	
	2004-01-24  Jakub Jelinek  <jakub@redhat.com>
	
	* simplify-rtx.c (simplify_relational_operation): Don't
	simplify address == constant into address + -constant == 0.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* gcc.c (process_command): Don't internationalize the
	Copyright message.
	* mips-tfile.c (main): Likewise.
	
	2004-01-24  Andreas Tobler  <a.tobler@schweiz.ch>
	
	* cse.c: (cse_cc_succs) Fix comparison warning.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.md: Remove extraneous USE in expanders.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300-protos.h: Provide prototypes for
	h8300_legitimate_constant_p and h8300_legitimate_address_p.
	* config/h8300/h8300.c (h8300_legitimate_constant_p): New.
	(h8300_rtx_ok_for_base_p): Likewise.
	(h8300_legitimate_address_p): Likewise.
	* config/h8300/h8300.h (LEGITIMATE_CONSTANT_P): Use
	h8300_legitimate_constant_p.
	(RTX_OK_FOR_BASE_P): Remove.
	(GO_IF_LEGITIMATE_ADDRESS): Use h8300_legitimate_address_p.
	
	2004-01-24  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.h (REG_OK_FOR_INDEX_NONSTRICT_P): New.
	(REG_OK_FOR_BASE_NONSTRICT_P): Likewise.
	(REG_OK_FOR_INDEX_STRICT_P): Likewise.
	(REG_OK_FOR_BASE_STRICT_P): Likewise.
	(REG_OK_FOR_INDEX_STRICT_P): Use REGNO_OK_FOR_INDEX_P.
	(REG_OK_FOR_BASE_STRICT_P): Use REGNO_OK_FOR_BASE_P.
	(REG_OK_FOR_INDEX_P): Use REG_OK_FOR_INDEX_STRICT_P.
	(REG_OK_FOR_BASE_P): Use REG_OK_FOR_BASE_STRICT_P.
	
	2004-01-24  Jan Hubicka  <jh@suse.cz>
	
	* cselib.c (remove_useless_values):  Do not access discarded values.
	
	2004-01-24  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* c-typeck.c (build_conditional_expr): Do not allow non-lvalue
	arrays.
	
	2004-01-23  Kazu Hirata  <kazu@cs.umass.edu>
	
	* recog.c: Fix a typo in copyright.
	
	2004-01-23  Andrew Pinski  <apinski@apple.com>
	
	* config/rs6000/rs6000.md (call): Fix misappiled patch.
	(call_value): Likewise.
	
	2004-01-23  Richard Henderson  <rth@redhat.com>
	
	PR opt/12941
	* combine.c (SHIFT_COUNT_TRUNCATED): Provide default value.
	(simplify_comparison): Don't simplify (eq (zero_extract c 1 r) 0)
	if SHIFT_COUNT_TRUNCATED is set.
	
	2004-01-23  Bob Wilson  <bob.wilson@acm.org>
	
	* config/xtensa/xtensa.c (xtensa_va_arg): Handle complex values as
	separate real and imaginary parts.
	* config/xtensa/xtensa.h (SPLIT_COMPLEX_ARGS): Define.
	
	2004-01-23  Hartmut Penner <hpenner@de.ibm.com>
	
	PR target/13674
	* config/rs6000/rs6000.md (movdf_hardfloat64): Do not disparage
	loading into GPR.
	
	2004-01-23  Jan Hubicka  <jh@suse.cz>
	
	* emit-rtl.c (change_address_1):  Do not re-generate the RTX if nothing
	change.
	
	* alloc-pool.c (align_four): Kill.
	(create_alloc_pool): Align size to eight.
	(free_alloc_pool, free_pool): Invalidate deallocated data.
	
	2004-01-23  Ian Lance Taylor  <ian@wasabisystems.com>
	
	PR gcc/1532
	* cse.c (cse_change_cc_mode): New static function.
	(cse_change_cc_mode_insns, cse_cc_succs): Likewise.
	(cse_condition_code_reg): New function.
	* rtl.h (cse_condition_code_reg): Declare.
	* toplev.c (rest_of_handle_cse2): Call cse_condition_code_reg.
	* target.h (struct gcc_target): Add fixed_condition_code_regs and
	cc_modes_compatible.
	* target-def.h (TARGET_FIXED_CONDITION_CODE_REGS): Define.
	(TARGET_CC_MODES_COMPATIBLE): Define.
	(TARGET_INITIALIZER): Add new initializers.
	* targhooks.c (default_cc_modes_compatible): New function.
	* targhooks.c (default_cc_modes_compatible): Declare.
	* hooks.c (hook_bool_intp_intp_false): New function.
	* hooks.h (hook_bool_intp_intp_false): Declare.
	* config/i386/i386.c (TARGET_FIXED_CONDITION_CODE_REGS): Define.
	(TARGET_CC_MODES_COMPATIBLE): Define.
	(ix86_fixed_condition_code_regs): New static function.
	(ix86_cc_modes_compatible): Likewise.
	* doc/tm.texi (Condition Code): Document new hooks.
	
	2004-01-23  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
	
	* fixinc/inclhack.def (bad_lval): Renamed to ...
	(alpha_bad_lval): ... this.
	Removed file list.
	Restrict to alpha*-dec-osf*.
	* fixinc/fixincl.x: Regenerate.
	* fixinc/tests/base/dirent.h: Remove, moving test ...
	* fixinc/tests/base/testing.h: ... here, reflecting new name.
	
	2004-01-23  Zack Weinberg  <zack@codesourcery.com>
	
	PR c/13814
	* c-decl.c (diagnose_mismatched_decls): Also discard a
	built-in if we encounter an old-style definition with the
	same name.
	
	2004-01-23  Jakub Jelinek  <jakub@redhat.com>
	
	* config.gcc (powerpc*-*): Clear $with_cpu or $with_tune if it was
	set to default{32,64}.
	
	2004-01-21  Jakub Jelinek  <jakub@redhat.com>
	
	* config/rs6000/linux64.h (MD_FALLBACK_FRAME_STATE_FOR)
	[!__powerpc64__]: Corrected to handle kernels with changed ucontext.
	
	2004-01-23  Eric Botcazou  <ebotcazou@act-europe.fr>
	Olivier Hainque  <hainque@act-europe.fr>
	
	* fold-const.c (fold_binary_op_with_conditional_arg): Only
	build a COMPOUND_EXPR if 'arg' is really a SAVE_EXPR.
	
	2004-01-23  Daniel Jacobowitz  <drow@mvista.com>
	
	* config/arm/arm.c (arm_legitimate_address_p): Don't check the mode
	size for minipool references.
	
	2004-01-23  Roger Sayle  <roger@eyesopen.com>
	
	* real.c (real_floor, real_ceil): Tweak to allow input and output
	arguments to overlap.
	(real_round): New function to implement round(3m) semantics.
	* real.h (real_round): Prototype here.
	* builtins.c (fold_builtin_round): New function to constant fold
	round, roundf and roundl.
	(fold_builtin): Call fold_builtin_round for BUILT_IN_ROUND{,F,L}.
	
	2004-01-23  Alexandre Oliva  <aoliva@redhat.com>
	
	PR optimization/13819
	* config/sh/sh.c (sh_reorg): Compensate for sharing of CLOBBERs
	introduced by 2004-01-20's Jan Hubicka's copy_insn change.
	(sh_handle_sp_switch_attribute): Remove warning.
	
	2003-11-30  Jan Hubicka  <jh@suse.cz>
	
	* i386.c (ix86_emit_restore_regs_using_mov):  Deal with large offsets.
	
	2004-01-23  J"orn Rennecke <joern.rennecke@superh.com>
	
	* doc/tm.texi: Insert some weasel words when LOAD_EXTEND_OP
	may or may not return non-NIL.
	* postreload.c (reload_cse_simplify_operands): In LOAD_EXTEND_OP code,
	check CANNOT_CHANGE_MODE_CLASS
	
	2004-01-23  Jan Hubicka  <jh@suse.cz>
	
	* basic-block.h (PROP_POSTRELOAD): New macro.
	(CLEANUP_LOG_LINKS): New.
	* cfgcleanup.c (cleanup_cfg): Only PROP_LOG_LINKS when asked to.
	* toplev.c (rest_of_handle_life):  Preserve LOG_LINKS trought cleanup_cfg.
	
	* cselib.c (value_pool): New.
	(new_cselib_val): Use pool.
	(cselib_init): Initialize value_pool
	(cselib_finish): Free pool.
	
	2004-01-23  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	* config/sparc/sparc.c (scan_record_type): New function.
	(function_arg_slotno): Use it to determine which kinds of
	registers the record can be passed in.
	
	2004-01-22  James A. Mmorrison  <ja2morri@uwaterloo.ca>
	
	* config/pa/fptr.c: Fix old-style definition.
	
	2004-01-22  Paolo Bonzini  <bonzini@gnu.org>
	
	PR optimization/13724
	* cse.c (fold_rtx) <SUBREG>:  Fold a SUBREG to zero if it
	represents the zero bits produced by a ZERO_EXTEND operation.
	
	2004-01-22  Roger Sayle  <roger@eyesopen.com>
	
	PR optimization/13821
	* simplify-rtx.c (simplify_subreg): Use subreg_lowpart_offset to
	correctly calculate the lowpart offset of the contracted subreg.
	
	2004-01-22  Ian Lance Taylor  <ian@wasabisystems.com>
	
	* doc/invoke.texi (Optimize Options): Note that --param arguments
	are subject to change without notice.
	
	2004-01-22  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
	
	* config.gcc (mips-sgi-irix6*o32): Removed.
	* config/mips/iris6-o32-as.h: Likewise.
	* config/mips/iris6-o32-gas.h: Likewise.
	* config/mips/iris6-o32.h: Likewise.
	
	2004-01-22  Jan Hubicka  <jh@suse.cz>
	
	* cfgcleanup.c (first_pass): New static variable.
	(try_forward_edges):  Add work limiting check for threading.
	(try_crossjump_bb):  Add work limiting check for crossjumping.
	(try_optimize_cfg):  Maintain first pass variable.
	
	2004-01-22  Bob Wilson  <bob.wilson@acm.org>
	
	* config/xtensa/xtensa.c (function_arg): Generalize logic so that it
	handles complex and vector modes.
	
	2004-01-22  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.h (REG_OK_FOR_INDEX_P_STRICT): Remove.
	(REG_OK_FOR_BASE_P_STRICT): Likewise.
	(STRICT): Likewise.
	
	2004-01-22  Daniel Jacobowitz  <drow@mvista.com>
	
	* c-semantics.c (genrtl_while_stmt, genrtl_do_stmt_1)
	(genrtl_for_stmt): Remove emit_nop calls.
	
	2004-01-22  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	
	PR target/13713
	PR target/13324
	* pa.md (movstrsi_prereload, movstrsi_postreload, movstrdi_prereload,
	movstrdi_postreload, clrstrsi_prereload, clrstrsi_postreload,
	clrstrdi_prereload, clrstrdi_postreload): Fix constraints.
	
	2004-01-22  Daniel Jacobowitz  <drow@mvista.com>
	
	* config/arm/arm.c: Include "debug.h".
	(thumb_pushpop): Take two new arguments.  Add some commentary.
	Output frame information when pushing.
	(thumb_exit, thumb_unexpanded_epilogue): Update calls to
	thumb_pushpop.
	(thumb_output_function_prologue): Likewise.  Accumulate a CFA
	offset, and pass it to thumb_pushpop.  Output CFI information.
	(thumb_expand_prologue): Add some frame-related markers and notes.
	
	2004-01-22  Ulrich Weigand  <uweigand@de.ibm.com>
	
	* config/s390/s390.c (s390_frame_info): Allow large frame sizes
	for TARGET_64BIT.
	(s390_arg_frame_offset): Change return type to HOST_WIDE_INT.
	* config/s390/s390-protos.h (s390_arg_frame_offset): Likewise.
	
	2004-01-22  Roger Sayle  <roger@eyesopen.com>
	Paolo Bonzini  <bonzini@gnu.org>
	
	* rtlanal.c (subreg_lsb_1): New function split out from subreg_lsb.
	(subreg_lsb): Change to call new subreg_lsb_1 helper function.
	* rtl.h (subreg_lsb_1): Prototype here.
	* simplify-rtx.c (simplify_subreg): Optimize subregs of zero and
	sign extensions.
	
	2004-01-22  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/tm.texi (CASE_VECTOR_PC_RELATIVE): Mention that the
	macro need not be defined if jump-tables should contain
	relative addresses only when -fPIC or -fPIC is in effect.
	
	2004-01-22  Jan Hubicka  <jh@suse.cz>
	
	* alias.c (reg_base_value): Turn into varray.
	(reg_base_value_size): Kill.
	(old_reg_base_value): New deletable varray.
	(alias_invariant_size): New variable.
	(REG_BASE_VALUE): Update to use varray.
	(find_base_value): Likewise.
	(record_set): Likewise.
	(record_base_value): Likewise.
	(memrefs_conflict_p): Likewise.
	(record_set): Likewise
	(record_base_value): Likewise.
	(memrefs_conflict_p): Use alias_invariant_size.
	(init_alias_analysis): Use varray; set alias_invariant_size;
	rescale other arrays to be sized by maxreg.
	(end_alias_analysis): Save reg_base_value; clear alias_invariant_size.
	
	2004-01-22  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	* config/sparc/sparc.c (function_arg_slotno): Use
	FLOAT_TYPE_P to detect FP fields in structures.
	(function_arg_record_value_1): Likewise.
	(function_arg_record_value_2): Likewise.
	
	2004-01-22  Jan Hubicka  <jh@suse.cz>
	
	* function.c (allocate_struct_function): Do not initialize expr, emit
	and varasm.
	(prepare_function_start): Do it here.
	* c-parse.in (maybe_type_qual): Do not produce line number notes.
	
	2004-01-22  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	PR target/13559
	* config/sparc/sparc.c (function_arg_record_value_3): Revert
	to 'word_mode' once the first slot has been filled.
	
	2004-01-22  Olivier Hainque  <hainque@act-europe.fr>
	
	* config/sparc/sparc.c (function_arg_record_value_1): Fix
	computation of the number of integer registers required.
	
	2004-01-21  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/i386/i386.md: Simplify certain comparisons of
	const_int.
	
	2004-01-21  Andrew Pinski  <apinski@apple.com>
	
	PR target/13785
	* config/rs6000/rs6000.md (call_value): Force operand
	1 not operand 0 into a register.
	
	2004-01-21  Kazu Hirata  <kazu@cs.umass.edu>
	
	* cpperror.c, cpptrad.c, longlong.h, params.def, rtl.def,
	unwind-dw2-fde.h: Update copyright.
	
	2004-01-21  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	
	* pa-protos.h: Update copyright.
	* pa.h: Likewise.
	* pa.md: Likewise.
	
	2004-01-21  Caroline Tice <ctice@apple.com>
	
	PR target/12308
	* config/i386/i386.md (fix_truncxfdi2): Add clause to clobber
	flags register.
	(fix_truncdfdi2): Likewise.
	(fix_truncsfdi2): Likewise.
	(*fix_truncdi_1): Likewise.
	(fix_truncxfsi2): Likewise.
	(fix_truncdfsi2): Likewise.
	(fix_truncsfsi2): Likewise.
	(*fix_truncsi_1): Likewise.
	(fix_truncxfhi2): Likewise.
	(fix_truncdfhi2): Likewise.
	(fix_truncsfhi2): Likewise.
	(*fix_trunchi_1): Likewise.
	
	2004-01-21  Kazu Hirata  <kazu@cs.umass.edu>
	
	* alias.c, basic-block.h, c-common.c, c-common.h,
	c-cppbuiltin.c, c-opts.c, c-pragma.c, c-pretty-print.c,
	calls.c, cfg.c, cfgcleanup.c, cfgrtl.c, cgraph.h, collect2.c,
	combine.c, cppcharset.c, cpphash.h, cppinit.c, cpplib.c,
	cpplib.h, cppmacro.c, crtstuff.c, cselib.c, cselib.h,
	defaults.h, df.c, dominance.c, et-forest.c, expmed.c, expr.c,
	expr.h, fix-header.c, function.h, gcc.c, gcse.c, genattrtab.c,
	genautomata.c, genconditions.c, genemit.c, genflags.c,
	gengtype.c, gengtype.h, genopinit.c, genrecog.c, gensupport.c,
	ggc-zone.c, graph.c, haifa-sched.c, input.h, integrate.c,
	langhooks-def.h, langhooks.c, langhooks.h, line-map.c,
	line-map.h, local-alloc.c, optabs.c, optabs.h, postreload.c,
	ra.h, recog.c, reg-stack.c, regmove.c, reload.c, reorg.c,
	rtl.c, sched-deps.c, sched-ebb.c, sdbout.c, system.h,
	target.h, targhooks.c, toplev.h, tree-inline.c, unwind-pe.h,
	unwind.h, varray.c, varray.h: Update copyright.
	
	2004-01-21  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/coff.h: Update copyright.
	* config/h8300/elf.h: Likewise.
	* config/h8300/h8300-protos.h: Likewise.
	* config/h8300/h8300.c: Likewise.
	* config/h8300/h8300.h: Likewise.
	* config/h8300/h8300.md: Likewise.
	
	2004-01-21  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	
	* fixinc/inclhack.def (hpux10_stdio_declarations, ultrix_const3,
	ultrix_locale, ultrix_stdlib, ultrix_strings, ultrix_sys_time,
	ultrix_unistd): New hacks.
	* fixinc/tests/base/stdio.h (HPUX10_STDIO_DECLARATIONS_CHECK,
	ULTRIX_CONST2_CHECK): Add checks.
	* fixinc/tests/base/stdlib.h (ULTRIX_STDLIB_CHECK): Likewise.
	* fixinc/tests/base/strings.h (ULTRIX_STRINGS2_CHECK): Likewise.
	* fixinc/tests/base/unistd.h (ULTRIX_UNISTD_CHECK): Likewise.
	* fixinc/tests/base/sys/time.h (ULTRIX_SYS_TIME_CHECK): Likewise.
	* fixinc/tests/base/locale.h: New file.
	* fixinc/fixincl.x: Rebuilt.
	
	2004-01-21  Andreas Jaeger  <aj@suse.de>
	Michael Matz  <matz@suse.de>
	
	* doc/extend.texi (Extended Asm): Clarify memory clobber.
	
	2004-01-21  Jakub Jelinek  <jakub@redhat.com>
	
	* crtstuff.c (frame_dummy, __do_global_ctors_1): Call
	_Jv_RegisterClasses through a function pointer.
	
	2004-01-21  Falk Hueffner  <falk@debian.org>
	
	PR target/12898
	* config/alpha/alpha.c (alpha_emit_set_const_1): If
	no_new_pseudos, use gen_rtx_SET directly for SImode constants
	which need multiple instructions to emit.
	
	2004-01-21  Inaoka Kazuhiro  <inaoka.kazuhiro@renesas.com>
	
	* config/m32r/m32r.h (CPP_SPEC): Define.
	
	2004-01-21  Zack Weinberg  <zack@codesourcery.com>
	
	* c-decl.c (merge_decls): Kill different_binding_level and
	different_tu arguments; simplify throughout.
	(duplicate_decls): Likewise.
	(pushdecl, merge_translation_unit_decls): Update calls to
	duplicate_decls.
	
	2004-01-20  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
	
	* Makefile.in (pretty-print.o): Depend on $(CONFIG_H) and
	$(SYSTEM_H).
	(print-rtl1.o): Depend on $(SYSTEM_H).
	
	2004-01-20  Kelley Cook  <kcook@gcc.gnu.org>
	
	PR bootstrap/12730
	* configure.ac: Delete definition and subsitution of docdir.
	Add info, man, srcman and srcinfo to target hooks. Create doc/
	directory.
	* configure: Regenerate.
	* Makefile.in: Don't substitute docdir and delete all references
	throughout.
	(MAKEINFOFLAGS): Define.
	(stmp-docobjdir): Delete.
	(INFOFILES, MANFILES): Define.
	(info): Call lang.info, srcinfo and lang.srcinfo.
	(generated-manpages): Call lang.man, srcman and lang.srcman.
	(srcinfo, srcman): New rules to copy back files to source directory.
	(doc/%.info, doc/%.dvi, doc/%.1, doc/%.7): New implict rule.
	(install-man): Revamp rule.
	(clean): Update dvi directory.
	(distclean): Delete TAGS from front end directorys.
	(maintainer-clean): Delete all document files in source directory.
	
	objc/Make-lang.in (objc.man, objc.info): Dummy entries.
	(objc.srcman, objc.srcinfo): Likewise.
	
	2004-01-20  Bruce Korb  <bkorb@gnu.org>
	
	* fixinc/inclhack.def(math_exception): bypass only for glibc.
	(matherr_decl): rename & relocate as exception_structure.
	This fix must precede the math_exception fix.
	
	2004-01-20  Roger Sayle  <roger@eyesopen.com>
	
	* fold-const.c (fold_convert): Rename to fold_convert_const.
	(fold_convert_const): Change arguments to take a tree_code,
	a type and the operand/expression to be converted.  Return
	NULL_TREE if no simplification is possible.  Add support for
	FIX_CEIL_EXPR and FIX_FLOOR_EXPR in addition to FIX_TRUNC_EXPR.
	(fold): Handle FIX_CEIL_EXPR and FIX_FLOOR_EXPR.
	Adjust call to fold_convert to match new fold_convert_const.
	Avoid modifying the tree passed to fold in-place.
	
	2004-01-21  Alan Modra  <amodra@bigpond.net.au>
	
	* config/rs6000/sysv4.h (DWARF2_FRAME_REG_OUT): Define.
	* dwarf2out.c (output_cfi): Map regs using DWARF2_FRAME_REG_OUT.
	* doc/tm.texi (DWARF_FRAME_REGNUM, DWARF2_FRAME_REG_OUT): Document.
	
	2004-01-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	
	* pa-protos.h (compute_frame_size): Use HOST_WIDE_INT for frame sizes.
	* pa.c (store_reg, store_reg_modify, load_reg, set_reg_plus_d):
	Likewise.  Handle frames larger than 0x7fffffff on 64-bit ports.
	(emit_move_sequence): Check scratch_reg first in various if statements.
	Extend source simplification to handle all 64-bit CONST_INTs.
	(pa_output_function_prologue): Use HOST_WIDE_INT_PRINT_DEC for printing
	frame size.
	(hppa_expand_prologue, hppa_expand_epilogue): Use HOST_WIDE_INT for
	frame offset calculations.
	* pa.h (NEW_HP_ASSEMBLER): Add comment.
	(MAX_LEGIT_64BIT_CONST_INT, MIN_LEGIT_64BIT_CONST_INT,
	LEGITIMATE_64BIT_CONST_INT_P): Define.
	(LEGITIMATE_CONSTANT_P): Use LEGITIMATE_64BIT_CONST_INT_P.  Treat
	any CONST_INT as legitimate during and after reload.
	(VAL_32_BITS_P, INT_32_BITS): Define.
	(LEGITIMIZE_RELOAD_ADDRESS): Handle large frame offsets.
	
	2004-01-20  Jan Hubicka  <jh@suse.cz>
	
	* emit-rtl.c (verify_rtx_sharing, copy_insn_1,
	emit_copy_of_insn_after, emit_copy_of_insn_after): Clobbers
	containing hard regs are shared.
	(gen_hard_reg_clobber): New function.
	(hard_reg_clobbers): New array.
	* genemit.c (gen_exp): Use gen_hard_reg_clobber.
	(copy_rtx): Do not copy clobbers containing hard regs.
	* rtl.h (gen_hard_reg_clobber): Declare.
	
	2004-01-20  Jan Hubicka  <jh@suse.cz>
	
	* varray.c:  Include hashtab.h
	(varray_descriptor): New structure.
	(hash_descriptor, eq_descriptor, varray_descriptor,
	print_statistics): New static functions
	(varray_init, varray_grow): Update statistics
	(dump_varray_statistics): New function.
	* varray.h (dump_varray_statistics): Declare.
	* toplev.c (finalize): Call it.
	* Makefile.in (varray.o): Add dependency.
	
	2004-01-20  Jan Hubicka  <jh@suse.cz>
	
	* cselib.c: Include alloc-pool.h
	(empty_vals, empty_elt_lists, empty_elt_loc_lists): Kill.
	(elt_loc_list_pool, elt_list_pool, cselib_val_pool): Declare.
	(new_elt_list, new_elt_loc_list, unchain_one_elt_list,
	unchain_one_elt_loc_list_pool, unchain_one_value,
	new_cselib_val): Simplify using allocpool.
	(cselib_init): Initialize allocpools.
	(cselib_finish): Finish allocpools.
	* Makefile.in (cselib.o): Depend on alloc-pool.h
	
	2004-01-20  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips.c (mips_load_call_address): Make the call insn
	use $gp if it could be calling a lazy binding stub.
	
	2004-01-20  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/s390/s390.c (TARGET_PROMOTE_FUNCTION_ARGS): Define.
	(TARGET_PROMOTE_FUNCTION_RETURN): Likewise.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	* config/s390/s390.h (PROMOTE_FUNCTION_ARGS): Remove.
	(PROMOTE_FUNCTION_RETURN): Remove.
	(STRUCT_VALUE): Remove.
	
	2004-01-20  Denis Chertykov  <denisc@overta.ru>
	
	PR bootstrap/13735
	* config/avr/avr.h (BASE_REG_CLASS): Don't permit to use X
	register as pointer after reload.
	
	2004-01-20  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
	
	PR optimization/12440
	* loop.c: Include ggc.h.
	(loop_optimize): Run garbage collector between optimization of loops.
	* Makefile.in (loop.o): Add GGC_H dependency.
	
	2004-01-20  Hartmut Penner  <hpenner@de.ibm.com>
	
	* gcc/config/rs6000/rs6000.c (function_arg) Handle
	vector register special in function without prototype.
	(function_arg_advance): Vector parameters get always
	GPRs allocated for the linux64 target.
	
	2004-01-20  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>
	
	* config/m32r/m32r.h (TARGET_M32R2). Test for TARGET_M32R2_MASK
	not TARGET_M32RX_MASK.
	
	2004-01-20  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	PR target/13557
	* config/sparc/sparc.c (function_arg): Reorder the cases.
	
	2004-01-19  Per Bothner  <per@bothner.com>
	
	Move cpp_reader's line_maps field to a shared global.
	* cpphash.h (cpp_reader):  Rename line_maps field to line_table
	and change the type to a pointer rather than a struct.
	* cppinit.c (cpp_push_main_field):  Adjust accordingly.
	* cpplib.c (do_include_common, _cpp_do_file_change, cpp_get_callbacks):
	Likewise.
	* cppfiles.c (validate_pch):  Likewise.
	* cppmacro.c (_cpp_warn_if_unused_macro, _cpp_builtin_macro_text):
	Likewise.
	* cpperror.c (print_location):  Likewise.
	* cpplib.h (cpp_create_reader):  New line_maps pointer parameter.
	* cppinit.c (cpp_create_reader):  Handle new parameter.
	(cpp_destroy):  Don't free line_maps - that's no longer our job.
	* input.h (line_table):  New variable.
	* toplev.c (line_table):  Declare variable.
	(general_init):  Initialize line_table.
	* c-opts.c (c_common_init_options):  Pass line_table to
	cpp_create_reader.
	* fix-header.c (read_scan_file):  New local variable line_table.
	Initialize, and pass it to cpp_create_reader.
	* Makefile.in (LIBS, LIBDEPS):  Add libcpp.a.
	(C_AND_OBJC_OBJS, fix-header):  Remove redundant libcpp.a.
	
	2004-01-19  Per Bothner  <per@bothner.com>
	
	Implement a cache for linemap_lookup.
	* line-map.h (struct_line_maps):  Add cache field.
	* line-map.c (linemap_init):  Zero cache field.
	(linemap_add):  Set cache field to offset of newly allocated map.
	(linemap_lookup):  Use and set cache field.
	
	2004-01-20  Kaz Kojima  <kkojima@gcc.gnu.org>
	
	PR optimization/13567
	* cse.c (cse_basic_block): Call cse_insn with a non-null
	libcall_insn for the last SET insn of a no-confilict block.
	
	2004-01-20  Kelley Cook  <kcook@gcc.gnu.org>
	
	* Makefile.in (target_noncanonical, program_transform_name): Use
	immediate define instead of deferred.
	(GCC_INSTALL_NAME, GCC_TARGET_INSTALL_NAME, CPP_INSTALL_NAME,
	PROTOIZE_INSTALL_NAME, UNPROTOIZE_INSTALL_NAME, GCOV_INSTALL_NAME,
	GCCBUG_INSTALL_NAME): Define via a immediate $(shell) instead of
	deferred backquote.
	
	2004-01-20  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* c-decl.c (c_init_decl_processing): Set pedantic_lvalues to
	true unconditionally.
	* c-typeck.c (unary_complex_lvalue, pedantic_lvalue_warning):
	Remove.
	(build_unary_op, build_modify_expr): Don't handle extended
	lvalues.
	(build_component_ref, build_conditional_expr): Call non_lvalue
	instead of pedantic_non_lvalue.
	(build_c_cast): Don't condition use of non_lvalue on pedantic.
	* fold-const.c (fold): Don't check pedantic directly for
	COMPOUND_EXPR.  Ensure that results for COMPOUND_EXPR are
	passed to pedantic_non_lvalue.
	* doc/extend.texi: Remove documentation of extended lvalues.
	
	2004-01-19  Roger Sayle  <roger@eyesopen.com>
	
	PR optimization/5263
	* simplify-rtx.c (associative_constant_p): Delete.
	(simplify_associative_operation): Rewrite to linearize terms, and
	attempt to simplify new term against both left and right subterms.
	(simplify_binary_operation): Call swap_commutative_operands_p on
	op0 and op1, not trueop0 and trueop1.  Move the initialization of
	trueop0 and trueop1 down to where first needed.
	(simplify_relational_operation): Likewise.
	* rtlanal.c (commutative_operand_precedence): Also order constant
	operands using avoid_constant_pool_reference.
	
	2004-01-19  Richard Henderson  <rth@redhat.com>
	
	* config/alpha/alpha.c (aligned_memory_operand): Check MEM_ALIGN,
	don't check memory mode.
	(unaligned_memory_operand): Likewise.
	(reload_inqi, reload_inhi, reload_outqi, reload_outhi): Don't
	abort for op0 not MEM.
	
	* config/alpha/alpha.c (alpha_expand_mov_nobwx): If the destination
	is not a reg, copy to a scratch first.
	(aligned_loadqi, aligned_loadhi, unaligned_loadqi, unaligned_loadhi,
	unaligned_loadqi_le, unaligned_loadqi_be, unaligned_loadhi_le,
	unaligned_loadhi_be): Expect op0 in DImode; don't SUBREG.
	(reload_inqi, reload_inhi): Fix mode of op0.
	(reload_inqi_help, reload_inhi_help, reload_outqi_help,
	reload_outhi_help): Likewise.  Use define_insn_and_split.
	
	* config/alpha/alpha.md (call peepholes): Check for REG_NORETURN
	as well as $29 dead.
	
	2004-01-19  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	* config/sparc/sol2.h (ASM_DECLARE_OBJECT_NAME): New.  Emit
	"tls_object" for thread-local objects.
	* config/sparc/sparc.c (sparc_elf_asm_named_section): Emit
	"#tls" for thread-local sections.
	* configure.ac (thread-local checks): Specify --fatal-warnings in
	every binutils-specific checks.  For sparc*-*-*, test whether the
	OS is Solaris and the tools are native and act accordingly.
	* configure: Rebuild.
	
	2004-01-19  Jeff Law  <law@redhat.com>
	
	* contrib.texi: Update Paolo Carlini's entry.  New entries for
	Jerry Quinn and Petur Runolfsson.
	
	2004-01-19  Roger Sayle  <roger@eyesopen.com>
	
	* config/i386/i386.md (*movhi_1, *movqi_1): When optimizing for
	size, don't use the larger zero-extending loads.
	
	2004-01-19  Richard Henderson  <rth@redhat.com>
	
	* alpha.h (HARD_REGNO_MODE_OK): Disallow SImode in FP regs.
	* alpha.md (UNSPEC_NT_LDA): Remove.
	(UNSPEC_CVTLQ, cvtlq): New.
	(extendsidi2_1): Rename from extendsidi2_nofix; remove f/f.
	(extendsidi2_fix): Remove.
	(extendsidi2 splitter): Use cvtlq.
	(extendsidi2 fp peepholes): Remove.
	(cvtql): Use SFmode instead of SImode.
	(fix_trunc?fsi): Update to match.
	(floatsisf2_ieee, floatsisf2, floatsidf2_ieee, floatsidf2): New.
	(movsi): Rename from movsi_nofix, remove f alternatives.
	(movsi_nt_vms): Similarly.
	(movsi_fix, movsi_nt_vms_fix): Remove.
	(nt_lda): Remove.
	* alpha.c (alpha_expand_prologue): Use adddi3, not nt_lda.
	
	2004-01-19  Jan Hubicka  <jh@suse.cz>
	
	* cgraph.c (cgraph_remove_node): Fix removal from linked list.
	* cgraphunit.c (cgraph_finalize_compilation_unit): Clear next_needed
	list.
	(cgraph_remove_unreachable_nodes): New function
	(cgraph_decide_inlining_of_small_function): Fix pasto.
	(cgraph_decide_inlining_incrementally): Fix pasto.
	(cgrpah_decide_inlining): Likewise; remove unreachable nodes.
	
	2004-01-19  Steven Bosscher  <stevenb@suse.de>
	
	* gengtype.c (header_file): Make it static.
	(write_types_process_field, write_enum_defn): Minor whitespace fixes.
	* gengtype.h (header_file): No longer extern.
	
	2004-01-18  Kazu Hirata  <kazu@cs.umass.edu>
	
	* defaults.h (CASE_VECTOR_PC_RELATIVE): Provide the default.
	* expr.c (CASE_VECTOR_PC_RELATIVE): Remove.
	* stmt.c (CASE_VECTOR_PC_RELATIVE): Likewise.
	
	2004-01-18  Kazu Hirata  <kazu@cs.umass.edu>
	
	* stmt.c (HAVE_casesi): Define it not already defined.
	(HAVE_tablejump): Likewise.
	(expand_end_case_type): Resort to the binary tree method if
	neither casesi or tablejump is available.
	
	2004-01-18  Daniel Jacobowitz  <drow@mvista.com>
	
	* final.c (final_scan_insn): Make non-static again.
	* output.h (final_scan_insn): Re-add prototype.
	* config/arc/arc.c (arc_output_function_epilogue): Add NULL
	to final_scan_insn call.
	* config/cris/cris.c (cris_target_asm_function_epilogue): Likewise.
	* config/mips/mips.c (mips_output_conditional_branch): Likewise.
	* config/pa/pa.c (output_lbranch, output_call): Likewise.
	* config/sh/sh.c (print_slot): Likewise.
	* config/sparc/sparc.c (sparc_nonflat_function_epilogue): Likewise.
	(output_sibcall, sparc_flat_function_epilogue): Likewise.
	
	2004-01-18  Jan Hubicka  <jh@suse.cz>
	
	* basic-block.h (try_redirect_by_replacing_jump): Declare.
	* cfgcleanup.c (try_optimize_cfg): Use it.
	* cfgrtl.c (try_redirect_by_replacing_jump): Export.
	(rtl_redirect_edge_and_branch, cfg_layout_redirect_edge_and_branch):
	Kill hack.
	(cfg_layout_merge_blocks): Use try_redirect_by_replacing_jump.
	
	Revert:
	2004-01-16  Geoffrey Keating  <geoffk@apple.com>
	
	* cfgrtl.c (try_redirect_by_replacing_jump): Optimize tablejumps
	even after reload, just don't remove the actual jump tables.
	
	2004-01-18  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/rs6000/rs6000.h (STRICT_ARGUMENT_NAMING): Remove.
	
	2004-01-18  Kazu Hirata  <kazu@cs.umass.edu>
	
	* defaults.h (ASM_OUTPUT_ADDR_VEC_ELT): Fix the computation of
	the size of a pointer in bytes.
	
	2004-01-18  Roger Sayle  <roger@eyesopen.com>
	
	* builtins.c (expand_builtin_expect_jump): Fix thinko of reusing
	live "next" variable, which could lead to an infinite loop.
	
	2004-01-18  Andrew Pinski  <pinskia@physics.uc.edu>
	
	* config/rs6000/altivec.h: Wrap C++ functions in extern "C++"
	block.
	
	* config/rs6000/rs6000.c (rs6000_special_round_type_align):
	Check for NULL in the chain and remove repeated code.
	
	2004-01-18  Jan Hubicka  <jh@suse.cz>
	
	* coverage.c (checksum_string): Rename to ...
	(coverage_checksum_string): ... this one, Use crc32_string; recognize
	names containing random number and zero the number out in order to get
	match.
	
	2004-01-18  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips.c (mips_got_alias_set): Mark for PCH.
	
	2004-01-18  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* doc/c-tree.texi, doc/cpp.texi, doc/extend.texi,
	doc/frontends.texi, doc/gcov.texi, doc/gty.texi, doc/install.texi,
	doc/invoke.texi, doc/libgcc.texi, doc/md.texi, doc/rtl.texi,
	doc/sourcebuild.texi, doc/standards.texi, doc/tm.texi,
	doc/trouble.texi: Remove trailing whitespace.
	
	2004-01-18  Richard Sandiford  <rsandifo@redhat.com>
	
	PR target/7618
	* config/mips/mips.c: Include cfglayout.h.
	(TARGET_ASM_OUTPUT_MI_THUNK, TARGET_ASM_CAN_OUTPUT_MI_THUNK): Define.
	(mips_unspec_offset_high): Add temporary register argument.
	(mips_load_call_address): New function, split out from...
	(mips_expand_call): ...here.
	(mips_output_cplocal): New function.
	(mips_output_function_prologue, mips_output_function_epilogue): Use it.
	(mips_emit_loadgp): New function, split out from...
	(mips_expand_prologue): ...here.
	(mips_output_mi_thunk): New function.
	
	2004-01-17  Bernardo Innocenti  <bernie@develer.com>
	
	* longlong.h (mc68020, __mc68030__, mc68030, __mc68040__, mc68040,
	mcpu32): Remove redundant checks for implied target predefines.
	
	2004-1-17  Andrew Pinski  <pinskia@physics.uc.edu>
	
	* config/rs6000/rs6000.c (rs6000_special_round_type_align):
	Return type is unsigned int not int.
	* config/rs6000/rs6000-protos.h (rs6000_special_round_type_align):
	Likewise.
	
	2004-01-18  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* doc/contrib.texi, doc/cppenv.texi, doc/extend.texi,
	doc/install.texi, doc/invoke.texi, doc/tm.texi: Consistently use
	"GNU/Linux" and "Microsoft Windows" terminology.
	
	2004-01-18  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* doc/c-tree.texi, doc/compat.texi, doc/cpp.texi,
	doc/cppopts.texi, doc/extend.texi, doc/install.texi,
	doc/interface.texi, doc/invoke.texi, doc/libgcc.texi, doc/md.texi,
	doc/objc.texi, doc/rtl.texi, doc/tm.texi, doc/trouble.texi: Use
	@smallexample instead of @example.
	
	2004-01-17  Ziemowit Laski  <zlaski@apple.com>
	
	* objc/objc-act.c (build_objc_method_call): Use target
	hooks instead of macros to determine if ..._stret
	dispatchers should be used (NeXT runtime only).
	
	2004-01-17  Roger Sayle  <roger@eyesopen.com>
	
	* builtins.c (expand_builtin_expect_jump): Fix mistake in my
	last patch.  Use XEXP (x, 0) to get a LABEL_REF's CODE_LABEL.
	
	2004-01-17  Daniel Jacobowitz  <drow@mvista.com>
	
	* rtl.h (emit_insn_before_sameloc, emit_jump_insn_before_sameloc)
	(emit_call_insn_before_sameloc, emit_insn_after_sameloc)
	(emit_jump_insn_after_sameloc, emit_call_insn_after_sameloc): New
	macros.
	* reload1.c (emit_reload_insns): Use them.
	* emit-rtl.c (emit_insn_before_sameloc, emit_insn_after_sameloc)
	(emit_jump_insn_after_sameloc, emit_call_insn_after_sameloc): Check
	for NULL PATTERN.
	
	2004-01-17  Daniel Jacobowitz  <drow@mvista.com>
	
	* final.c (SEEN_BB, SEEN_NOTE, SEEN_EMITTED): Define.
	(final_scan_insn): Update to take an additional SEEN argument.  Emit
	a line note after the prologue.  Make static.
	(line_note_exists): Remove.
	(final): Don't initialize line_note_exists.  Update call to
	final_scan_insn.
	* output.h (final_scan_insn): Remove prologue.
	* function.c (set_insn_locators): Update comment.
	(thread_prologue_and_epilogue_insns): Add a comment.
	
	2004-01-17  Andrew Pinski  <pinskia@physics.uc.edu>
	
	PR target/10781
	* config/rs6000/rs6000-protos.h (rs6000_special_round_type_align):
	Prototype.
	* config/rs6000/rs6000.c (rs6000_special_round_type_align):
	New function.
	* config/rs6000/linux64.h (ROUND_TYPE_ALIGN): Use it.
	* config/rs6000/aix.h (ROUND_TYPE_ALIGN): Likewise.
	* config/rs6000/darwin.h (ROUND_TYPE_ALIGN): Likewise.
	
	2004-01-17  Jan Hubicka  <jh@suse.cz>
	
	* toplev.c (rest_of_handle_reorder_blocks): Fix pasto in previous
	commit.
	
	* toplev.c (HAVE_conditional_execution): Provide default.
	(rest_of_handle_reorder_blocks): For conditional_execution target
	update liveness once after all transformations
	(rest_of_compilation): Do crossjumping before ce3.
	
	2004-01-17  Geoffrey Keating  <geoffk@apple.com>
	
	* alias.c (new_alias_set): Mark last_alias_set for PCH.
	(get_varargs_alias_set): Rename 'set' to 'varargs_set' and mark it
	for PCH.
	(get_frame_alias_set): Likewise, except rename it to 'frame_set'.
	* config/rs6000/rs6000.c (rs6000_sr_alias_set): Mark for PCH.
	(get_TOC_alias_set): Mark 'set' for PCH.
	
	2004-01-16  Geoffrey Keating  <geoffk@apple.com>
	
	* cfgrtl.c (try_redirect_by_replacing_jump): Optimize tablejumps
	even after reload, just don't remove the actual jump tables.
	
	2004-01-17  J. Brobecker  <brobecker@gnat.com>
	
	* dwarf2out.c (is_subrange_type): Renamed from is_ada_subrange_type().
	Remove checks for is_ada() and TREE_UNSIGNED.
	(subrange_type_die): Emit a byte_size attribute if the subrange
	type size is different from the base type size.
	(modified_type_die): Replace call to is_ada_subrange_type() by
	call to is_subrange_type().
	
	2004-01-16  Andrew Pinski  <pinskia@physics.uc.edu>
	
	* config/sh/sh.c: Include ggc.h.
	
	2004-01-16  Geoffrey Keating  <geoffk@apple.com>
	
	* Makefile.in (MD5_H): New.
	(fold-const.o): Depend on md5.h.
	(dwarf2out.o): Likewise.
	(cppfiles.o): Likewise.
	* cppfiles.c: Include md5.h.
	(should_stack_file): Check against list read from PCH file.
	(struct pchf_data): New.
	(pchf): New variable.
	(struct pchf_adder_info): New.
	(pchf_adder): New.
	(pchf_save_compare): New.
	(_cpp_save_file_entries): New.
	(_cpp_read_file_entries): New.
	(struct pchf_compare_data): New.
	(pchf_compare): New.
	(check_file_against_entries): New.
	* cpphash.h (_cpp_save_file_entries): Prototype.
	(_cpp_read_file_entries): Prototype.
	* cpppch.c (cpp_write_pch_state): Write the list of headers.
	(cpp_read_state): Read the list of headers.
	
	2004-01-17  Jan Hubicka  <jh@suse.cz>
	
	* c-common.c (c_estimate_num_insns_1): Handle builtin_constant_p and
	builtin_expect specially.
	* params.def (PARAM_MAX_INLINE_INSNS_AUTO): Set to 100.
	(PARAM_LARGE_FUNCTION_INSNS): Set to 3000.
	* invoke.texi (max-inline-insns-single): Set to 100.
	(large-function-insns): Set to 3000.
	
	2004-01-16  Eric Christopher  <echristo@redhat.com>
	Chandrakala Chavva <cchavva@redhat.com>
	
	* cppcharset.c (one_iso88591_to_utf8): New function.
	(convert_iso88591_utf8): Ditto. Use.
	(conversion_tab): Use.
	(_cpp_input_to_utf8): New function.
	(_cpp_init_iconv_buffer): Ditto.
	(_cpp_close_iconv_buffer): Ditto.
	* cpphash.h: Prototype new functions.
	(cpp_buffer): Add input_cset_desc.
	* cppinit.c: Add input_charset default.
	* cpplib.c (cpp_push_buffer): Support init and
	close of iconv.
	* cpplib.h (cpp_options): Add input_charset.
	
	2004-01-16  Kazu Hirata  <kazu@cs.umass.edu>
	
	* system.h (ASM_OUTPUT_SECTION_NAME): Poison.
	* config/alpha/unicosmk.h: Remove a commented-out definition
	of ASM_OUTPUT_SECTION_NAME.
	* config/stormy16/stormy16.h: Likewise.
	
	2004-01-16  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
	
	* fixinc/inclhack.def (alpha___extern_prefix): Renamed to ...
	(alpha___extern_prefix_sys_stat): ... this.
	Apply to <sys/mount.h>, too.
	Tweak to match more variations.
	* fixinc/tests/base/sys/stat.h: Adapt for new hackname.
	
	* fixinc/inclhack.def (alpha___extern_prefix,
	alpha___extern_prefix_standards): New hacks to obey
	__PRAGMA_EXTERN_PREFIX.
	* fixinc/tests/base/testing.h [ALPHA___EXTERN_PREFIX_CHECK]: New
	test.
	* fixinc/tests/base/standards.h: Likewise.
	
	* fixincl/inclhack.def (alpha_pthread): Tweak to match more
	variations.
	New testcase.
	* fixinc/tests/base/pthread.h: Handle it.
	
	* fixincl/inclhack.def (bad_lval): Sort file list.
	Add many missing files up to Tru64 UNIX V5.1B.
	* gcc/fixinc/tests/base/libgen.h: Renamed to ...
	* gcc/fixinc/tests/base/dirent.h: ... this to match new file list
	order.
	
	* fixinc/fixincl.x: Regenerate.
	
	2004-01-16  Mark Mitchell  <mark@codesourcery.com>
	
	* version.c (version_string): Change to 3.5.0.
	* doc/include/gcc-common.texi (version-GCC): Likewise.
	
	2004-01-16  Jan Hubicka  <jh@suse.cz>
	
	* i386.md (load_tp_di): Fix pasto.
	
	PR opt/13608
	* i386.c (ix86_compute_frame_layout): Fix for alloca on leaf function.
	
	* c-pretty-print.c (pp_c_type_cast, pp_c_abstract_declarator,
	pp_c_character_constant, pp_c_floating_constant,
	pp_c_additive_expression, pp_c_shift_expression,
	pp_c_equality_expression, pp_c_and_expression,
	pp_c_exclusive_or_expression, pp_c_inclusive_or_expression,
	pp_c_logical_and_expression): Remove inline modifier.
	* dwarf2out.c (get_AT): Likewise.
	* et-forest.c (et_splay): Likewise.
	* ra.h (ra_alloc, ra_calloc): Likewise
	
	2004-01-16  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/frv/frv-protos.h: Fix comment formatting.
	* config/frv/frv.c: Likewise.
	* config/frv/frv.h: Likewise.
	* config/frv/frv.md: Likewise.
	* config/frv/frvbegin.c: Likewise.
	* config/frv/frvend.c: Likewise.
	
	2004-01-16  Kazu Hirata  <kazu@cs.umass.edu>
	
	* system.h (LINKER_DOES_NOT_WORK_WITH_DWARF2): Poison.
	* doc/tm.texi (PREFERRED_DEBUGGING_TYPE): Don't mention
	LINKER_DOES_NOT_WORK_WITH_DWARF2.
	(LINKER_DOES_NOT_WORK_WITH_DWARF2): Remove.
	
	2004-01-16  J"orn Rennecke <joern.rennecke@superh.com>
	
	PR 11864
	* postreload.c (reload_cse_simplify_operands): Don't remove
	implicit extension from LOAD_EXTEND_OP.
	
	2004-01-16  Jan Hubicka  <jh@suse.cz>
	
	PR opt/11350
	* cfgcleanup.c (try_optimize_cfg): Suppress tablejump removal
	after reload.
	* cfgrtl.c (rtl_can_merge_blocks, cfglayout_can_merge_blocks,
	rtl_try_redirect_by_replacing_branch): Likewise.
	
	2004-01-15  Geoffrey Keating  <geoffk@apple.com>
	
	PR pch/13689
	* alias.c (struct alias_set_entry): Mark for GC.
	(alias_sets): Make static, mark for GC.
	(record_alias_subset): Use GC to allocate alias structures.
	* varray.c (element): Make generic varrays GCed.
	
	PR pch/13361
	* c-typeck.c (constructor_asmspec): Delete.
	(struct initializer_stack): Delete field 'asmspec'.
	(start_init): Delete saving of asmspec.
	(finish_init): Don't update constructor_asmspec.
	* dwarf2out.c (rtl_for_decl_location): Duplicate string from tree.
	* stmt.c (expand_asm): Duplicate strings from tree.
	(expand_asm_operands): Likewise.
	* tree.c (tree_size): Update computation of size of STRING_CST.
	(make_node): Don't make STRING_CST nodes.
	(build_string): Allocate string with tree node.
	* tree.def (STRING_CST): Update comment.
	* tree.h (TREE_STRING_POINTER): Adjust for change to STRING_CST.
	(tree_string): Place contents of string in tree node.
	* config/sh/sh.c (sh_handle_sp_switch_attribute): Duplicate string
	from tree.
	
	* config/rs6000/rs6000.c (rs6000_va_arg): No need to special-case
	altivec operands.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* c-common.h: Fix comment formatting.
	* c-cppbuiltin.c: Likewise.
	* c-pragma.c: Likewise.
	* calls.c: Likewise.
	* collect2.c: Likewise.
	* cppcharset.c: Likewise.
	* cpptrad.c: Likewise.
	* dbxout.c: Likewise.
	* defaults.h: Likewise.
	* dwarf2out.c: Likewise.
	* fold-const.c: Likewise.
	* genautomata.c: Likewise.
	* genconditions.c: Likewise.
	* genflags.c: Likewise.
	* gengtype.c: Likewise.
	* integrate.c: Likewise.
	* loop.c: Likewise.
	* predict.c: Likewise.
	* sdbout.c: Likewise.
	
	2004-01-15  Zack Weinberg  <zack@codesourcery.com>
	
	* config/ia64/ia64.md (*movti_internal): C output template
	extracted to ia64.c.
	(*movti_internal_reg): Delete.
	(reload_inti, reload_outti): Use the correct mode on operand 2
	in the first place, don't fix it up in the output template.
	(movtf, reload_ointf, reload_outtf): New expanders.
	(*movtf_internal): New define_insn_and_split.
	* config/ia64/ia64.c (ia64_split_timode): Rename to ia64_split_tmode;
	make static; do not hand TFmode CONST_DOUBLEs to split_double.
	(ia64_split_tmode_move): New function, body mostly pulled
	from ia64.md:*movti_internal.
	(ia64_function_arg_words): New function, extracted common
	logic from ia64_function_arg et seq.
	(ia64_function_arg_offset): Likewise.  Handle correctly the
	case of a scalar quantity 16 bytes wide with only 8-byte alignment.
	(ia64_function_arg, ia64_function_arg_partial_nregs)
	(ia64_function_arg_advance): Use ia64_function_arg_words and
	ia64_function_arg_offset.
	(ia64_function_value): TCmode does not go in float regs.
	(ia64_secondary_reload_class): Also handle TFmode.
	* config/ia64/ia64-protos.h: Remove prototype for
	ia64_split_timode; add prototype for ia64_split_tmode_move.
	
	2004-01-15  Kelley Cook  <kcook@gcc.gnu.org>
	
	* Makefile.in (MAINT): Make it an immediate assignment.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/m32r/m32r.md: Remove useless calls to gen_lowpart.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/coff.h: Replace Hitachi with Renesas.
	* config/h8300/elf.h: Likewise.
	* config/h8300/h8300-protos.h: Likewise.
	* config/h8300/h8300.c: Likewise.
	* config/h8300/h8300.h: Likewise.
	* config/h8300/h8300.md: Likewise.
	* config/h8300/lib1funcs.asm: Likewise.
	
	2004-01-15  Andrew Pinski  <apinski@apple.com>
	
	* config/rs6000/rs6000.c (uses_TOC): Wrap #if TARGET_ELF
	around it.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.c (h8300_return_in_memory): New.
	(TARGET_STRUCT_VALUE_RTX): Likewise.
	(TARGET_RETURN_IN_MEMORY): Likewise.
	* config/h8300/h8300.h (STRUCT_VALUE): Remove.
	(RETURN_IN_MEMORY): Likewise.
	
	2004-01-15  Richard Earnshaw  <rearnsha@arm.com>
	
	PR optimization/13375
	* gcse.c (handle_avail_expr): Just return if the source is not a
	single set.
	
	2004-01-15  Richard Earnshaw  <rearnsha@arm.com>
	Daniel Jacobowitz  <drow@mvista.com>
	
	* arm/lib1funcs.asm (ARM_FUNC_START): Correct interworking case.
	(EQUIV): Define.
	(ARM_FUNC_ALIAS): New macro.
	* arm/ieee754-df.S (gedf2, ledf2, nedf2, eqdf2): Use it.
	* arm/ieee754-sf.S (gesf2, lesf2, nesf2, eqsf2): Use it.
	
	2004-01-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	
	PR optimization/12372
	* calls.c (expand_call): Add call_fusage data for stack arguments in
	constant calls.
	
	2004-01-15  Alan Modra  <amodra@bigpond.net.au>
	
	* config/rs6000/rs6000.c (uses_TOC): Correct comment.  Make static.
	(rs6000_elf_declare_function_name): Formatting.
	* config/rs6000/rs6000-protos.h (uses_TOC): Remove declaration.
	
	2004-01-15  Jan Hubicka  <jh@suse.cz>
	
	PR bootstrap/13692
	* sched-deps.c (sched_analyze_1, sched_analyze_2): Fix thinko in
	previous patch.
	
	2004-01-15  Richard Henderson  <rth@redhat.com>
	
	* config/alpha/alpha.h (REG_ALLOC_ORDER): Reorder fp regs after
	integer regs of the same call-savedness.
	
	2004-01-15  Andreas Schwab  <schwab@suse.de>
	
	PR bootstrap/13562
	* config/m68k/m68k.c (output_move_const_into_data_reg): Clear cc
	status for NOTB/NOTW/NEGW methods.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/invoke.texi: Update dump file names.  Fix a typo.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* builtins.c (expand_builtin_va_end): Don't use
	EXPAND_BUILTIN_VA_END.
	* system.h (EXPAND_BUILTIN_VA_END): Poison.
	* config/d30v/d30v.h: Remove a commented-out definition of
	EXPAND_BUILTIN_VA_END.
	* config/stormy16/stormy16.h: Likewise.
	
	2004-01-15  Kazu Hirata  <kazu@cs.umass.edu>
	
	* system.h (STRUCT_VALUE_INCOMING_REGNUM): Poison.
	* targhooks.c (default_struct_value_rtx): Don't use
	STRUCT_VALUE_INCOMING_REGNUM.
	
	2004-01-15  Kelley Cook  <kcook@gcc.gnu.org>
	
	PR bootstrap/12744
	* configure.in: Revamp enable-generated-files-in-srcdir rule to define
	GENINSRC and not parsedir.  Define srcextra as a langhook.
	* configure: Regenerate.
	* Makefile.in: Suppress default .l.c rule.  Don't substitute
	parsedir and delete all references throughout.  Conditionally define
	rule for srcextra dependent on GENINSRC.
	(stmp-docobjdir): Delete.
	(c-parse.o, gengtype-lex.o, gengtype-yacc.o): Use implicit build rule.
	(srcextra): Copy c-parse.y, c-parse.c, gengtype-lex.c, gengtype-yacc.c,
	and gengtype-yacc.h back to source directory.
	(maintainer-clean): Delete all parse files in source directory.
	(distclean): Delete generated files.
	
	* objc/Make-lang.in (objc-parse.o): Use implicit build rule.
	(objc-parse.c, objc-parse.y): Don't use parsedir.
	(objc.srcextra): Copy objc-parse.y and objc-parse.c back to source
	directory if requested.
	(po-generated): Don't use parsedir.
	(objc.maintainer-clean): Delete above files from source directory.
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/tm.texi (FUNCTION_VALUE): Fix a typo.
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/tm.texi: Replace RETURN_IN_MEMORY with
	TARGET_RETURN_IN_MEMORY.
	
	2004-01-15  Jan Hubicka  <jh@suse.cz>
	
	* builtins.c (std_expand_builtin_va_arg): Align operand when needed.
	* i386.c (init_cumulative_args): Set warn_sse; fix handling of variadic
	functions accepting SSE arguments
	(function_arg): Warn only when asked to warn.
	* i386.h (ix86_args): Add warn_sse/warn_mmx fiels.
	
	2004-01-14  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* c-parse.in (stmts_and_decls): Make label at end of compound
	statement a hard error.
	
	2004-01-14  Jan Hubicka  <jh@suse.cz>
	
	* cgraph.c (create_edge): Use local.redefined_extern_inline.
	* cgraph.h (cgraph_local_info): Sort fields by size; add
	redefined_extern_inline
	(cgraph_global_info): Sort fields by size.
	(cgraph_node): Likewise.
	* cgraphunit.c (cgraph_finalize_function): Se
	local.redefined_extern_inline on redefinition.
	(cgraph_analyze_function): Use it; fix formating.
	
	2004-01-14  Jan Hubicka  <jh@suse.cz>
	
	PR c++/10776
	* sched-deps.c (trye_dependency_cache, anti_dependency_cache,
	outptu_dependency_cache, forward_dependency_cahe): Trun to vectors of
	bitmaps
	(cache_size): New variable
	(add_dependence): Update use; canonize early memory locations
	(sched_analyze_1): Likewise.
	(sched_analyze_2): Likewise.
	(init_dependency_caches): Initialize bitmaps.
	(free_dependency_caches): Free bitmaps
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* calls.c: Replace STRICT_ARGUMENT_NAMING in comments with
	targetm.calls.strict_argument_naming().
	* target.h: Likewise.
	
	2004-01-14  Richard Henderson  <rth@redhat.com>
	
	PR debug/13231
	* dwarf2out.c (dwarf2out_stack_adjust): Skip prologue and epilogue
	instructions.
	
	2004-01-14  Richard Henderson  <rth@redhat.com>
	
	PR c++/12491
	* except.c (struct eh_region): Add u.fixup.resolved.
	(resolve_one_fixup_region): Split out from ...
	(resolve_fixup_regions): ... here.
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mn10300/mn10300.h (STRUCT_VALUE): Change to 0.
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/alpha/alpha.h (STRUCT_VALUE): Remove.
	* config/alpha/vms.h (STRUCT_VALUE_REGNUM): Remove #undef.
	(STRUCT_VALUE): Remove.
	
	2004-01-14  Steven Bosscher  <stevenb@suse.de>
	
	* system.h: Poison PROMOTED_MODE
	* integrate.c (expand_inline_function): Don't mention the
	PROMOTED_MODE.
	* loop.c (update_giv_derive): Same.
	* tree.h (DECL_RTL): Same.
	
	2004-01-14  J"orn Rennecke <joern.rennecke@superh.com>
	
	PR target/9365
	* sh.c (gen_block_redirect): Add special handling of RETURN.
	(gen_far_branch) Don't call gen_stuff_delay_slot if there is no
	far branch target (i.e. it's a return).
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* regrename.c (find_oldest_value_reg): Fix a warning.
	
	2004-01-14  Richard Earnshaw  <rearnsha@arm.com>
	
	PR bootstrap/12527
	* config.gcc (arm*-*-linux*): Don't include unknown-elf.h in tm_file.
	Move linux-gas.h and linux-elf.h before aout.h.
	* arm/arm.h (INITIALIZE_TRAMPOLINE): Only define if not already.
	* arm/linux-elf.h (SUBTARGET_CPU_DEFAULT): Define.
	
	2004-01-14  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/m32r/m32r.md: Use GEN_INT instead of gen_rtx
	(CONST_INT, VOIDmode, ...).
	
	2004-01-14  Richard Earnshaw  <rearnsha@arm.com>
	
	* regrename.c (find_oldest_value_reg): If the replacement uses
	multiple hard registers, check that all of them are in CLASS.
	
	2004-01-14  Jan Hubicka  <jh@suse.cz>
	
	* alias.c (get_alias_set):  Initialize alias set to 0 when subset is
	impossible.
	
	2004-01-14  Kelley Cook  <kcook@gcc.gnu.org>
	
	* Makefile.in: Define MAINT from --enable-maintainer-mode.
	
	2004-01-14  Hartmut Penner  <hpenner@de.ibm.com>
	
	* gcc/config/rs6000/rs6000.c (rs6000_stack_info)
	Calculate always vrsave_mask if TARGET_ALTIVEC.
	(rs6000_emit_prologue): Emit code for vrsave
	only if TARGET_ALTIVEC_VRSAVE.
	(rs6000_emit_epilogue): Likewise.
	
	2004-01-14  Eric Botcazou  <ebotcazou@libertysurf.fr>
	
	* config/sparc/sparc.md (tie_add32): Fix pasto.
	(tie_add64): Likewise.
	
	2004-01-14  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
	
	* config/i386/i386.md (*addqi_1_slp): Do not access operands[2].
	
	2004-01-13  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/iq2000/iq2000-protos.h: Fix comment formatting.
	* config/iq2000/iq2000.c: Likewise.
	* config/iq2000/iq2000.md: Likewise.
	
	2004-01-14  J. Brobecker  <brobecker@gnat.com>
	
	* dwarf2out.c (is_ada_subrange_type): No longer check the TYPE_NAME.
	(subrange_type_die): Add handle for nameless subrange types.
	
	2004-01-13  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300-protos.h: Replace do_movsi with
	h8300_expand_movsi.
	* config/h8300/h8300.c (do_movsi): Change to
	h8300_expand_movsi.
	* config/h8300/h8300.md (movsi): Replace do_movsi with
	h8300_expand_movsi.
	(movsf): Likewise.
	
	2004-01-13  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.c (dosize): Change to
	h8300_emit_stack_adjustment.  Update callers.
	
	2004-01-13  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/h8300/h8300.md (movstrictqi): Add an alternative with
	the source being post_inc.  Tighten the predicate for the
	destination to register_operand.
	(movstricthi): Likewise.
	
	2004-01-13  Kazu Hirata  <kazu@cs.umass.edu>
	
	* system.h (SHARED_BSS_SECTION_ASM_OP): Poison.
	* varasm.c (bss_section): Don't use SHARED_BSS_SECTION_ASM_OP.
	* doc/tm.texi (SHARED_BSS_SECTION_ASM_OP): Remove.
	
	2004-01-14  Jan Hubicka  <jh@suse.cz>
	
	Partial fix PR c++/12850
	* cgraphunit.c (cgraph_finalize_function): Always ggc_collect when
	at zero nest level.
	
	2004-01-13  Bernardo Innocenti  <bernie@develer.com>
	
	* config/m68k/netbsd-elf.h (REGISTER_NAMES): Add missing "argptr"
	pseudo-register.
	
	2004-01-13  Devang Patel <dpatel@apple.com
	
	PR debug/7078
	* dbxout.c (dbxout_symbol_name): Emit mangled names for
	NAMESPACE_DECL memebers.
	
	2004-01-13  Andrew Pinski  <pinskia@physics.uc.edu>
	
	PR c++/12709
	* c-common.c (finish_fname_decls): Use the chain only if the
	tree is an expr_stmt.
	
	2004-01-13  Vladimir Makarov  <vmakarov@redhat.com>
	
	* rtl.def: Add comment about new option in automata_option.
	
	* genautomata.c (PROGRESS_OPTION): New macro.
	(progress_flag): New global variable.
	(gen_automata_option): Process `progress'.
	(transform_insn_regexps, check_unit_distributions_to_automata,
	make_automaton, NDFA_to_DFA, build_automaton, create_automata,
	expand_automata, write_automata): Print about the progress only if
	progress_flag.  Remove fflush.
	(initiate_automaton_gen): Process command line flag `-progress'.
	
	* doc/md.texi: Describe the new option.
	
	2004-01-13  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
	
	* cfg.c (dump_bb): Dump entry edges.
	
	2004-01-13  Richard Earnshaw  <rearnsha@arm.com>
	
	* arm.c (thumb_legitimate_address_p): Only allow constant pool
	references from SImode.
	* arm.md (thumb_movhi_insn): Don't allow minipool references.
	
	2004-01-13  Kazu Hirata  <kazu@cs.umass.edu>
	
	* system.h (TEXT_SECTION): Poison.
	* varasm.c (text_section): Don't use TEXT_SECTION.
	* config/sh/sh.c (sh_file_start): Fix a comment typo.
	* doc/tm.texi (TEXT_SECTION): Remove.
	
	2004-01-13  Ben Elliston  <bje@wasabisystems.com>
	
	* doc/rtl.texi (Vector Operations): Remove defunct vec_const item.
	
	2004-01-12  James E Wilson  <wilson@specifixinc.com>
	
	* unwind-libunwind.c: Delete.
	
	2004-01-12  Zack Weinberg  <zack@codesourcery.com>
	
	PR 13656
	* c-decl.c (diagnose_mismatched_decls): Whenever newtype or
	oldtype is set, set *newtypep or *oldtypep too.  Do not set
	them at the very end.
	(validate_proto_after_old_defn): Restructure for comprehensibility;
	make error messages clearer.
	
	2004-01-12  Zack Weinberg  <zack@codesourcery.com>
	
	* varray.h (VARRAY_POP): Add checking variant, aborts on underflow.
	(VARRAY_TOP): Use VARRAY_CHECK so the access is bounds-checked.
	* varray.c: No need to prototype error.
	(varray_check_failed): Wrap long string onto two lines.
	(varray_underflow): New function.
	
	2004-01-13  Steven Bosscher  <stevenb@suse.de>
	
	PR c++/13376
	* function.h (struct function): Kill `name' field.
	(current_function_name): Make it an extern function.
	* function.c (current_function_name): New function.
	* graph.c: Update all uses of current_function_name.
	* gcse.c: Likewise.
	* config/alpha/alpha.c, config/avr/avr.c, config/c4x/c4x.c,
	config/mips/mips.c, config/pdp11/pdp11.c: Likewise.
	* config/ip2k/ip2k.c (function_prologue): Use MAIN_NAME_P
	instead of a strcmp with "main".
	
	2004-01-13  Jan Hubicka  <jh@suse.cz>
	
	* c-decl.c (diagnose_mismatched_decls):  Fix warning calls.
	
	* cgraphunit.c (cgraph_optimize_function):  Always do
	optimize_inline_calls when there is always_inline callee.
	(cgraph_decide_inlining): Fix formating.
	* tree-inline.c (inlinable_function_p): Do sorry for alwaysinline
	functions.
	(expand_call_inline): Likewise.
	* toplev.h (sorry): Fix prototype.
	
	2004-01-12  Roger Sayle  <roger@eyesopen.com>
	
	* builtins.c (expand_builtin_expect_jump): Simplify logic. Handle
	conditional jumps that drop through to unconditional jumps or the
	end of the sequence.
	
	2004-01-13  Jan Hubicka  <jh@suse.cz>
	
	* alias.c (new_alias_set): Construct the alias_set varray.
	(init_alias_once): Don't do it here.
	
	2004-01-12  Marc Espie <espie@openbsd.org>
	
	* system.h: handle YYBYACC like YYBISON.
	
	2004-01-12  Jonathan Merriman <jonm@dualitymedia.com>
	
	PR target/10847
	* config.gcc: No longer includes conflicting header sparc/sol2.h when
	building on sparc64-*-openbsd*.
	
	2004-01-12  Andrew Pinski  <pinskia@physics.uc.edu>
	
	PR debug/13539
	* dbxout.c (dbxout_type): Protected inheritance is not
	private but protected.
	
	2004-01-12  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips.c (mips_symbolic_constant_p): Revert last patch.
	
	2004-01-12  Kazu Hirata  <kazu@cs.umass.edu>
	
	PR optimization/12508.
	* combine.c (try_combine): Remove a dead set in a parallel
	even if its destination is a subreg.
	
	Revert:
	2003-06-03  Kazu Hirata  <kazu@cs.umass.edu>
	* combine.c (simplify_set): Don't move a subreg in SET_SRC to
	SET_DEST if WORD_REGISTER_OPERATIONS is not defined.
	
	2004-01-12  Geoffrey Keating  <geoffk@apple.com>
	
	* real.c: Update copyright date.
	* emit-rtl.c: Likewise.
	* rtl.h: Likewise.
	* dwarf2out.c: Likewise.
	* config/rs6000/darwin-ldouble.c: Likewise.
	* config/rs6000/rs6000.md: Likewise.
	
	2004-01-12  David Edelsohn  <edelsohn@gnu.org>
	
	* config/rs6000/rs6000.c (rs6000_init_libfuncs): Add AIX
	TFmode to SImode libfuncs.
	
	2004-01-12  Roger Sayle  <roger@eyesopen.com>
	
	PR middle-end/11397
	* varasm.c (assemble_alias): Remove weak aliases from weak_decls.
	
	2004-01-12  Jan Hubicka  <jh@suse.cz>
	
	PR opt/12826
	* loop.c (insert_loop_mem): Preffer VOLATILE memory references to be
	stored.
	
	PR opt/12863
	* cfgcleanup.c (label_is_jump_target_p): Move to...
	* rtlanal.c (label_is_jump_target_p): ... here.
	* cfgrtl.c (cfg_layout_redirect_edge_and_branch):  Fix redirecting of fallthru
	edges unified with branch edges.
	
	2004-01-12  Richard Earnshaw  <rearnsha@arm.com>
	
	* simplify-rtx.c (simplify_immed_subreg): Correctly extract the
	high word of an integral CONST_DOUBLE.
	
	2004-01-12  Paul Brook  <paul@codesourcery.com>
	
	* simplify-rtx.c (simplify_plus_minus): Always generate canonical form.
	
	2004-01-12  J"orn Rennecke <joern.rennecke@superh.com>
	
	PR target/13585
	* sh-protos.h (check_use_sfunc_addr): Declare.
	* sh.c (extract_sfunc_addr, check_use_sfunc_addr): New functions.
	* sh.md (use_sfunc_addr): Use check_use_sfunc_addr in insn predicate.
	
	2004-01-12  Jan Hubicka  <jh@suse.cz>
	
	* alias.c:  Invlude varray.h
	(alias_sets): Turn into varray.
	(get_alias_set_entry): Use VARRAY; mark inline.
	(mems_in_disjoint_alias_sets_p): Mark inline.
	(record_alias_subset): Use varray.
	(init_alias_once): Initialize varray.
	(new_alias_set): Grow array.
	* varray.c: Make VARRAY_GENERIC_PTR non GTYized.
	
	2004-01-12  Jan Hubicka  <jh@suse.cz>
	
	Partial fix for PR opt/10776 II
	* cselib.c: Include params.h
	(cselib_invalidate_mem):  Limit amount of nonconflicting memory
	locations.
	* params.def (PARAM_MAX_CSELIB_MEMORY_LOCATIONS): New.
	* Makefile.in (cselib.o): Depend on params.h
	
	2004-01-12  Richard Sandiford  <rsandifo@redhat.com>
	
	* combine.c (combine_simplify_rtx): Don't pass VOIDmode to
	simplify_unary_operation if the operand has a known mode.
	
	2004-01-12  Hartmut Penner  <hpenner@de.ibm.com>
	
	PR target/13534
	* gcc/config/rs6000/rs6000.c (word_offset_memref_operand): New
	predicate to handle 'ld' conform addresses.
	* gcc/config/rs6000/rs6000.h (EXTRA_CONSTRAINT): New 'Y'
	contraint.
	(EXTRA_MEMORY_CONSTRAINT): Tell reload which constraint
	are memory contraints.
	* gcc/config/rs6000/rs6000-protos.h (word_offset_memref_operand):
	New prototype.
	* gcc/config/rs6000/rs6000.md (*movdf_hardfloat64):
	Change 'o' to 'Y' constraint.
	(*movdf_softfloat64): Ditto.
	
	2004-01-12  Bernardo Innocenti  <bernie@develer.com>
	
	* gcc/config/m68k/m68k.md: Switch from the "*..." syntax to the
	brace-enclosed syntax in all C output statements.
	
	2004-01-12  David Edelsohn  <edelsohn@gnu.org>
	
	PR target/13401
	* config/rs6000/rs6000.c (rs6000_output_function_epilogue):
	Objective-C language type value is 14.
	
	2004-01-12  Markus F.X.J. Oberhumer  <markus@oberhumer.com>
	
	PR c/12148
	* config/m68k/fpgnulib.c: Fix `-mshort' bugs: Use `long' instead of
	`int' in a number of places to make sure we always have a SImode
	and not a HImode.  Add a 'L' suffix to a number of constants.
	
	2004-01-11  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
	
	* pa.c: Don't include obstack.h.
	
	* pa.md: Correct constraint in pattern for loading PIC label address.
	
	2004-01-11  Kaz Kojima  <kkojima@gcc.gnu.org>
	
	* config/sh/linux.h (ASM_PREFERRED_EH_DATA_FORMAT): Undefine
	before defining.
	
	2004-01-11  Steven Bosscher  <stevenb@suse.de>
	
	PR fortran/9972
	* toplev.c (rest_of_handle_inline): Also consider functions
	for deferral if the language is GNU F77.
	
	2004-01-11  Zack Weinberg  <zack@codesourcery.com>
	
	* c-decl.c (diagnose_arglist_conflict): Add missing space to
	diagnostic messages.
	
	2004-01-11  Jakub Jelinek  <jakub@redhat.com>
	
	PR middle-end/13392
	* builtins.c (expand_builtin_expect_jump): Handle conditional jumps
	to drop through label.  Don't fall back to SCC even when conditional
	jump has not been found.
	
	2004-01-11  Jan Hubicka  <jh@suse.cz>
	
	* invoke.texi: Fix syntax error in previous patch.
	
	Partial fix for PR opt/10776
	* Makefile.in (reload.o): Include param.h
	* params.def (PARAM_MAX_RELOAD_SEARCH_INSNS): New parameter.
	* reload.c: Include params.h.
	(find_equiv_reg): Work limiting check.
	* invoke.texi: Document.
	
	2004-01-11  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips.c (mips_symbolic_constant_p): Don't allow
	out-of-bounds accesses to string constants.  Simplify mips16
	case accordingly.
	
	2004-01-11  Richard Sandiford  <rsandifo@redhat.com>
	
	PR optimization/13469
	* toplev.c (rest_of_compilation): Call purge_all_dead_edges after
	reload_cse_regs (-fnon-call-exceptions only).
	
	2004-01-11  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mcore/lib1.asm: Fix comment formatting.
	* config/mcore/mcore-elf.h: Likewise.
	* config/mcore/mcore.c: Likewise.
	* config/mcore/mcore.h: Likewise.
	* config/mcore/mcore.md: Likewise.
	
	2004-01-10  Zack Weinberg  <zack@codesourcery.com>
	
	* c-decl.c (duplicate_decls): Break apart into...
	(diagnose_arglist_conflict, validate_proto_after_old_defn)
	(locate_old_defn, diagnose_mismatched_decls, merge_decls):
	... these new functions.  Restructure for comprehensibility.
	Remove various archaic special cases.  Always report the
	location of the previous declaration when a diagnostic is issued.
	(redeclaration_error_message): Fold into diagnose_mismatched_decls.
	(match_builtin_function_types): Delete unnecessary forward declaration.
	
	2004-01-10  Zack Weinberg  <zack@codesourcery.com>
	
	* genautomata.c (make_automaton, NDFA_to_DFA):
	Print progress bars with '.' characters instead of '*'.
	(build_automaton): Change notes to match.
	
	2004-01-10  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/m32r/m32r.md: Use define_constants for unspec and
	unspec_volatile.
	
	2004-01-10  Jan Hubicka  <jh@suse.cz>
	
	PR opt/11635
	* expr.c (expand_expr_real):  More curefully expand union casts.
	
	2004-01-10  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/m32r/m32r.md (flush_icache): Use 1 for
	unspec_volatile.
	
	2004-01-10  David Edelsohn  <edelsohn@gnu.org>
	James E Wilson  <wilson@specifixinc.com>
	
	PR debug/12860
	* dbxout.c (dbxout_symbol): Remove initialization of
	current_sym_code, current_sym_value, and current_sym_addr.
	(dbxout_symbol_location): Same.
	(dbxout_prepare_symbol): Zero current_sym_code,
	current_sym_value, and current_sym_addr.
	
	2004-01-10  Richard Sandiford  <rsandifo@redhat.com>
	
	* tree.c (get_unwidened): Reorder conditions so that the null pointer
	check is done first.
	
	2004-01-09  Eric Christopher  <echristo@redhat.com>
	
	* toplev.c (rest_of_handle_cfg): Add reg_scan pass
	if we're running mark_constant_function.
	
	2004-01-09  Jeff Bailey  <jbailey@nisa.net>
	
	PR target/12561
	* config/t-gnu: Rename SYSTEM_HEADER_DIR to NATIVE_SYSTEM_HEADER_DIR.
	
	2004-01-09  Andrew Pinski <pinskia@physics.uc.edu>
	
	PR debug/11231
	* dbxout.c (dbxout_type_fields): Return if any item is
	error_mark_node or the type is error_mark_node.
	
	2004-01-09  Geoffrey Keating  <geoffk@apple.com>
	
	* config/rs6000/darwin-ldouble.c: Add big comment explaining
	exactly what is expected as a 'long double'.
	(_xlqadd): When a value to be returned is representable as a
	'double', just return it directly, do not construct it using a union.
	Also, correct final fixup.
	(_xlqmul): Likewise.
	(_xlqdiv): Likewise.
	* real.c (encode_ibm_extended): Make consistent with darwin-ldouble.c.
	
	* config/rs6000/rs6000.md (fix_trunctfdi2): Delete.
	
	2004-01-09  Richard Henderson  <rth@redhat.com>
	
	* recog.c (constrain_operands): Validate mem operands.
	
	2004-01-09   James E Wilson  <wilson@specifixinc.com>
	
	* gcc.c (init_spec): Remove -lunwind from shared case.
	* conifg/ia64/t-hpux (SHLIB_LINK): Add -lunwind.
	
	2004-01-09  Steve Ellcey  <sje@cup.hp.com>
	
	* configure.ac: (gcc_cv_ld_hidden) Set to true for ia64*-*-hpux*.
	* configure: Regenerate
	
	2004-01-09  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	PR c/11234
	* c-typeck.c (build_c_cast): If pedantic, warn for conversions
	between function and object pointers.
	(digest_init): When comparing a pointer to function type to the
	target type, only apply TREE_TYPE once to the pointer to function
	type.
	* except.c (for_each_eh_label_1): Treat data as a pointer to a
	function pointer rather than casting it to a function pointer.
	(for_each_eh_label): Update caller.
	* recog.h (struct insn_data): Use a struct or union for output.
	* genoutput.c (output_insn_data): Update.
	* final.c (get_insn_template): Update.
	
	2004-01-09  Mark Mitchell  <mark@codesourcery.com>
	
	* expr.h (expand_expr): Make it a macro, not a function.
	(expand_expr_real): New function.
	* expr.c (store_expr): Adjust logic for deciding whether or not to
	copy the value returned by expand_expr.
	(expand_expr): Rename to ...
	(expand_expr_real): ... this.  Add alt_rtl parameter.  Adjust
	calls to language hooks.
	* c-common.h (c_expand_expr): Adjust prototype.
	* c-common.c (c_expand_expr): Add alt_rtl parameter.
	* langhooks-def.h (lhd_expand_expr): Change prototype.
	* langhooks.c (lhd_expand_expr): Add all_rtl parameter.
	* langhooks.h (lang_hooks): Change type of expand_expr.
	* stmt.c (stmt_status): Add x_last_expr_alt_rtl.
	(last_expr_alt_rtl): Likewise.
	(expand_expr_stmt_value): Set last_expr_alt_rtl.
	(clear_last_expr): Clear it.
	(expand_end_stmt_expr): Set RTL_EXPR_ATL_RTL.
	(expand_end_bindings): Save and restor last_expr_alt_rtl.
	* tree.def (RTL_EXPR): Give it an additional operand.
	* tree.h (RTL_EXPR_ALT_RTL): New macro.
	
	2004-01-09  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>
	
	* config/m32r/m32r.h (TARGET_CPU_CPP_BUILTINS): Add __m32r__.
	* config/m32r/m32r.c (call26_operand): Allow in PIC mode.
	
	2004-01-09  Kazu Hirata  <kazu@cs.umass.edu>
	
	PR target/13380.
	* config/m32r/m32r.md: Replace (reg:SI 17) with (reg:CC 17)
	or (ne:SI (reg:CC 17) (const_int 0)).
	Be specific about modes wherever possible.
	
	2004-01-09  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/m32r/m32r.c (m32r_expand_block_move): Call
	gen_movestrsi_internal with two more arguments.
	(m32r_output_block_move): Adjust operand numbers.
	Properly update the source and destination pointers.
	* config/m32r/m32r.md (movstrsi_internal): Use 'r' instead of
	'r+'.  Change the set detinations to match_operand.
	
	2004-01-09  Kazu Hirata  <kazu@cs.umass.edu>
	
	* final.c (FIRST_INSN_ADDRESS): Remove.
	(shorten_branches): Don't use FIRST_INSN_ADDRESS.
	* system.h (FIRST_INSN_ADDRESS): Poison.
	* config/avr/avr.h: Remove a comment about FIRST_INSN_ADDRESS.
	* config/m32r/m32r-protos.h: Remove the prototype for
	m32r_first_insn_address.
	* config/m32r/m32r.c (m32r_first_insn_address): Remove.
	* config/m32r/m32r.h (FIRST_INSN_ADDRESS): Likewise.
	* doc/md.texi (FIRST_INSN_ADDRESS): Likewise.
	
	2004-01-09  J. Brobecker  <brobecker@gnat.com>
	
	* dwarf2out.c (gen_enumeration_type_die): Return the DIE that
	we just created.
	(is_ada_subrange_type): DIEs for enumeration subtypes should be
	emitted as subrange types too.
	(subrange_type_die): Add handling of enumeration subtypes.
	
	2004-01-08  Richard Henderson  <rth@redhat.com>
	
	PR opt/12441
	Revert: Sat Mar 30 14:08:55 CET 2002  Jan Hubicka  <jh@suse.cz>
	* i386.c (aligned_operand): Be prepared for SUBREGed registers.
	(ix86_decompose_address): Use REG_P instead of GET_CODE (...) == REG.
	(ix86_address_cost): Be prepared for SUBREGed registers.
	(legitimate_address_p): Accept SUBREGed registers.
	
	2004-01-08  Kelley Cook  <kcook@gcc.gnu.org>
	
	* Makefile.in: Rename configure.in to configure.ac
	* doc/sourcebuild.texi: Likewise.
	* configure: Regenerate.
	* config.in: Regenerate.
	
	2004-01-08  Stuart Hastings  <stuart@apple.com>
	
	* config/i386/i386.md: Typos in MMX/SSE immediate shifts.
	
	2004-01-08  Jan Hubicka  <jh@suse.cz>
	
	* cgraphunit.c (cgraph_decide_inlining):  Fix typo.
	
	2004-01-08  Geoffrey Keating  <geoffk@apple.com>
	
	* config/rs6000/rs6000.md (cmptf_internal1): Correct branch offset.
	(UNSPEC_FIX_TRUNC_TF): New constant.
	(movtf_internal): Make splitter active only when insn is active.
	(extenddftf2): Rewrite to properly load zero into low part.
	(extenddftf2_internal): New.
	(extendsftf2): Rewrite.
	(truncdftf2): Correct length.
	(floatditf2): Delete.
	(fix_trunc_helper): New.
	(fix_trunctfdi2): Use fix_trunc_helper.
	(fix_trunctfsi2): Likewise.fix_trunc
	(fix_trunctfsi2_internal): New.
	
	* config/rs6000/rs6000.c (legitimate_lo_sum_address_p): lo_sum
	addresses are legitimate on Darwin even when flag_pic.
	(rs6000_legitimize_reload_address) [TARGET_MACHO]: Don't create
	non-offsettable addresses for loads of TFmode constants.
	
	2004-01-08  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>
	
	* config/m32r/m32r.h (ASM_OUTPUT_ALIGNED_BSS): Actually emit
	variables in the appropriate bss section.
	
	2004-01-09  Alan Modra  <amodra@bigpond.net.au>
	
	* config/rs6000/linux64.h (SUBSUBTARGET_OVERRIDE_OPTIONS): Ensure
	target_flags has MASK_POWERPC64 when -m64.
	* config/rs6000/rs6000.c (processor_target_table): Add MASK_POWERPC64
	to 620, 630, power3, power4 and rs64a entries.
	* config/rs6000/rs6000.h (MASK_64BIT): Expand comment.
	
	2004-01-08  Richard Sandiford  <rsandifo@redhat.com>
	
	* simplify-rtx.c (simplify_immed_subreg): Fix construction of
	floating-point constants.
	
	2004-01-08  J. Brobecker  <brobecker@gnat.com>
	
	* dwarf2out.c (subrange_type_die): Add context_die parameter.
	Create the subrange_type DIE using the given context DIE.
	(modified_type_die): Update call to subrange_type_die.
	
	2004-01-08  Zack Weinberg  <zack@codesourcery.com>
	
	* dwarf2.h, unwind-dw2-fde.h, unwind-pe.h, unwind.h:
	Add multiple-include guard.
	
	2004-01-08  Hartmut Penner  <hpenner@de.ibm.com>
	
	* gcc/config/rs6000/rs6000.c (easy_vector_constant): Accept
	all vector constant loadable by vsplt*.
	(output_vec_const_move): Likewise.
	
	2004-01-07  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	PR c/6024
	* c-typeck.c (comptypes): Only treat enumerated types in the same
	translation unit as compatible with each other when they are the
	same type.
	* doc/extend.texi: Update.
	
	2004-01-07  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	PR c/12165
	* c-decl.c (grokdeclarator): Take type qualifiers of typedefed
	array type from the array element type.
	
	2004-01-07  Alan Modra  <amodra@bigpond.net.au>
	
	* config/rs6000/rs6000.c (rs6000_dbx_register_number): New function.
	* config/rs6000/rs6000-protos.h (rs6000_dbx_register_number): Declare.
	* config/rs6000/rs6000.h (DWARF_FRAME_REGNUM): Define.
	(DWARF_REG_TO_UNWIND_COLUMN): Correct column adjustment and comment.
	* config/rs6000/sysv4.h (DBX_REGISTER_NUMBER): Define.
	
	2004-01-06  Eric Christopher  <echristo@redhat.com>
	
	* config/mips/mips.h (MDEBUG_ASM_SPEC): Change for dwarf2 default.
	(DWARF2_DEBUGGING_INFO): Define.
	(PREFERRED_DEBUGGING_TYPE): Set to dwarf2.
	* config/mips/openbsd.h (PREFERRED_DEBUGGING_TYPE): Remove.
	* config/mips/iris6.h (SUBTARGET_ASM_DEBUGGING_SPEC): Only pass -g0
	for irix as.
	(SUBTARGET_ASM_OPTIMIZING_SPEC): Only pass O0 for irix as.
	* config/mips/iris6gas.h (MDEBUG_ASM_SPEC): Remove.
	* config/mips/iris5gas.h: Ditto.
	(DBX_DEBUGGING_INFO): Remove.
	(DWARF2_DEBUGGING_INFO): Ditto.
	(MIPS_DEBUGGING_INFO): Ditto.
	(PREFERRED_DEBUGGING_TYPE): Ditto.
	* config/mips/elf.h (DWARF2_DEBUGGING_INFO): Remove.
	(PREFERRED_DEBUGGING_TYPE): Ditto.
	(SUBTARGET_ASM_DEBUGGING_SPEC): Ditto.
	* config/mips/elf64.h: Ditto.
	
	2004-01-06  Jan Hubicka  <jh@suse.cz>
	
	* Makefile.in (STAGEPROFILE_FLAGS_TO_PASS): Use -fprofile-generate.
	(STAGEFEEDBACK_FLAGS_TO_PASS): Use -fprofile-use.
	
	2004-01-06  Geoffrey Keating  <geoffk@apple.com>
	
	* config/rs6000/t-darwin (LIB2FUNCS_EXTRA): Compile darwin-ldouble.c.
	(TARGET_LIBGCC2_CFLAGS): Use -mlong-double-128.
	* config/rs6000/darwin-ldouble.c: New.
	
	* emit-rtl.c (gen_lowpart_common): Use simplify_gen_subreg
	for constants.
	(constant_subword): Delete.
	* rtl.h (constant_subword): Delete prototype.
	(immed_double_const): Is not in varasm.c.
	* simplify-rtx.c (simplify_immed_subreg): New.
	(simplify_subreg): Use simplify_immed_subreg.
	
	* config/rs6000/rs6000.md (floatsitf2): Use expand_float rather
	than trying to generate RTL directly.
	(fix_trunctfsi2): Use expand_fix rather than trying to generate
	RTL directly.
	
	* dwarf2out.c (add_const_value_attribute): Remove incorrect comment.
	
	2004-01-06  David Edelsohn  <edelsohn@gnu.org>
	
	* config/rs6000/xcoff.h (EXTRA_SECTION_FUNCTIONS): Split each
	function into a separate macro.
	(read_only_data_section): Add void argument.
	(private_data_section): Same.
	(read_only_private_data_section): Same.
	(toc_section): Same.
	
	2004-01-06  Jan Hubicka  <jh@suse.cz>
	
	* invoke.texi:  Remove typo in last change.
	
	PR target/10301
	* config.gcc: Accept opteron and athlon-64 as variants
	of k8.
	* i386.c (override_options): Likewise.
	* invoke.texi (i386 -mtune): Expand documentation.
	
	2004-01-06  Kazu Hirata  <kazu@cs.umass.edu>
	
	* alias.c: Fix comment typos.
	* builtins.c: Likewise.
	* cfg.c: Likewise.
	* df.c: Likewise.
	* dominance.c: Likewise.
	* dwarf2out.c: Likewise.
	* emit-rtl.c: Likewise.
	* expr.c: Likewise.
	* final.c: Likewise.
	* fold-const.c: Likewise.
	* gcse.c: Likewise.
	* genattrtab.c: Likewise.
	* genrecog.c: Likewise.
	* gensupport.c: Likewise.
	* ggc-zone.c: Likewise.
	* integrate.c: Likewise.
	* local-alloc.c: Likewise.
	* loop.c: Likewise.
	* recog.c: Likewise.
	* regmove.c: Likewise.
	* reg-stack.c: Likewise.
	* reorg.c: Likewise.
	* rtlanal.c: Likewise.
	* rtl.h: Likewise.
	* sched-ebb.c: Likewise.
	* simplify-rtx.c: Likewise.
	* toplev.c: Likewise.
	* varasm.c: Likewise.
	
	2004-01-06  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/install.texi: Fix typos.
	* doc/invoke.texi: Likewise.
	* doc/md.texi: Likewise.
	
	2004-01-06  Kazuhiro Inaoka  <inaoka.kazuhiro@renesas.com>
	
	* config/m32r/m32r.h (TRAMPOLINE_LINE_SIZE): Changed
	
	2004-01-06  Jan Hubicka  <jh@suse.cz>
	
	* i386.c (init_cumulative_args):  Add handling of MMX_REGPARM.
	(function_arg_advance):  Do not pass aggregates in SSE; deal handling
	of MMX_REGPARM.
	(function_arg): Add new warnings about ABI changes;  fix SSE_REGPARM;
	add MMX_REGPARM.
	* i386.h (ix86_args): Add mmx_words/mmx_regs/mmx_regno fields.
	(SSE_REGPARM_MAX): Default to 3 on i386 -msse ABI.
	(MMX_REGPARM_MAX): Similarly for -mmmx.
	
	2004-01-05  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/sh/linux.h: Fix comment formatting.
	* config/sh/netbsd-elf.h: Likewise.
	* config/sh/sh.c: Likewise.
	* config/sh/sh.h: Likewise.
	* config/sh/vxworks.h: Likewise.
	
	2004-01-05  Kazu Hirata  <kazu@cs.umass.edu>
	
	* system.h (ASM_OUTPUT_MAIN_SOURCE_FILENAME): Poison.
	* toplev.c (output_file_directive): Don't use
	ASM_OUTPUT_MAIN_SOURCE_FILENAME.
	
	2004-01-05  Daniel Berlin  <dberlin@dberlin.org>
	
	* ggc-zone.c: Remove everything in #ifdef USING_MALLOC_PAGE_GROUPS
	(USING_MMAP): We don't support non-mmap.
	(struct alloc_chunk): Steal 1 bit from typecode, use it to mark
	large objects.
	(struct page_entry): Remove bytes_free.
	(struct page_table_chain): Remove.
	(struct globals): Remove page_table member.
	(loookup_page_table_entry): Function deleted.
	(set_page_table_entry): Ditto.
	(ggc_allocated_p): No longer need page table lookups.
	(ggc_marked_p): Ditto.
	(alloc_small_page): Don't care about bytes_free anymore.
	(alloc_large_page): Round up size.
	(ggc_alloc_zone_1): Mark large objects as such, and calculate
	their size the new way.
	Remove page table lookups and setting.
	(ggc_get_size): Calculate large object size the new way.
	(sweep_pages): Redo to account for fact that we no longer have
	bytes_free.
	(ggc_collect): No longer need to reincrement bytes_free.
	(ggc_pch_alloc_object): Handle new large objects properly.
	(ggc_pch_read): Put PCH stuff into it's own uncollected zone.
	
	2004-01-05  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/invoke.texi: Remove a page break.
	
	2004-01-05  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/avr/avr.c (avr_output_function_prologue): Remove an
	extra pair of curly braces.
	
	2004-01-05  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mn10300/mn10300.c: Fix comment formatting.
	* config/mn10300/mn10300.h: Likewise.
	
	2004-01-05  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
	
	* tree.h: Update documentation on nothrow_flag.
	* print-tree.c (print_node): Print TREE_NOTHROW as "align-ok" for
	types.
	
	2004-01-05  Kazu Hirata  <kazu@cs.umass.edu>
	
	* doc/invoke.texi: Remove traces of dead ports.
	
	2004-01-05  Richard Sandiford  <rsandifo@redhat.com>
	
	* doc/invoke.texi: Add documentation for the MIPS -mexplicit-relocs
	option.
	
	2004-01-05  Richard Sandiford  <rsandifo@redhat.com>
	
	PR target/12945
	* coverage.c (coverage_counter_alloc): Set SYMBOL_FLAG_LOCAL for
	counter labels.
	* config/mips/mips.c (INTERNAL_SYMBOL_P): Delete.
	(mips_classify_symbol): Always treat SYMBOL_REF_FLAG as indicating
	string constants if TARGET_MIPS16.  Use SYMBOL_REF_DECL to check
	the binding of decl symbols, otherwise check SYMBOL_REF_LOCAL_P.
	(mips_symbol_insns): Don't trust the local/global classification.
	(m16_usym8_4, m16_usym5_4): Same mips16 change as mips_classify_symbol.
	(override_options): Make -mabicalls -fno-unit-at-a-time imply
	-mno-explicit-relocs.
	(mips_encode_section_info): Don't use SYMBOL_REF_FLAG to distinguish
	between local and global symbols.
	
	2004-01-05  Richard Sandiford  <rsandifo@redhat.com>
	
	* config/mips/mips-protos.h (mips_dangerous_for_la25_p): Declare.
	(mips_preferred_reload_class): Declare.
	* config/mips/mips.h (DANGEROUS_FOR_LA25_P): Replace with function.
	(EXTRA_CONSTRAINT): Update accordingly.
	(PREFERRED_RELOAD_CLASS): Use mips_preferred_reload_class.
	* config/mips/mips.c (mips_dangerous_for_la25_p): New function.
	(mips_preferred_reload_class): New function.  Prefer LEA_REGS if
	mips_dangerous_for_la25_p.
	(mips_secondary_reload_class): Use LEA_REGS rather than GR_REGS
	if mips_dangerous_for_la25_p.
	
	2004-01-05  Bernardo Innocenti  <bernie@develer.com>
	
	* config/m68k/m68k.c (output_andsi3): Fix signed/unsigned comparison
	warning.
	
	2004-01-04  Nathanael Nerode  <neroden@gcc.gnu.org>
	
	* configure.ac: Use AC_PROG_CPP_WERROR.
	* configure: Regenerate.
	
	2004-01-04  Zack Weinberg  <zack@codesourcery.com>
	
	* .cvsignore: Add autom4te.cache.
	
	2004-01-04  Richard Sandiford  <rsandifo@redhat.com>
	
	* doc/invoke.texi: Revamp documentation of MIPS options.  Remove
	-mabi=meabi, -mabi-fake-default, -mmips-as, -mgas, -mmips-tfile,
	-m4650, -mfix7000 and -(m)no-crt0.  Put endianness options first,
	then architecture options, then ABI options.  General rewording.
	
	2004-01-04  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	PR c/3414
	* doc/extend.texi: Clarify definition of malloc attribute.
	
	2004-01-04  Jan Hubicka  <jh@suse.cz>
	
	* Makefile.in (cgraph.o, cgraphunit.o): Add intl.h dependency.
	* cgraph.c (create_edge, dump_cgraph): Update to use inline_failed
	* cgraph.h (cgraph_edge): Replace inline_call by inline_failed
	(cgraph_inline_p): Add extra argument reason.
	* cgraphunit.c: Minor formating fixes.
	cgraph_first_inlined_callee): New functions.
	(record_call_1): Record builtins too.
	(cgraph_analyze_function): Update inline_failed messages.
	(cgraph_mark_functions_to_output, cgraph_expand_function, cgraph_inlined_into,
	cgraph_inlined_callees, cgraph_estimate_growth): Update to use inline_failed.
	(cgraph_check_inline_limits): Likewise; Add argument reason.
	(cgraph_set_inline_failed): New static function.
	(cgraph_decide_inlining_of_small_function, cgraph_decide_inlining): Set
	reasons.
	(cgraph_inline_p): Add new argument reason.
	* tree-inline.c (expand_call_inline):  Update warning.
	
	2004-01-03  Nathanael Nerode  <neroden@gcc.gnu.org>
	
	* configure.ac: Replace AC_INIT, AC_OUTPUT, AC_CANONICAL_SYSTEM
	with modern equivalents.
	* configure: Regenerate.
	
	* configure.ac: Replace gcc_AC_CHECK_TYPE with AC_CHECK_TYPE.
	* aclocal.m4 (gcc_AC_CHECK_TYPE): Remove.
	* configure: Regenerate.
	
	* doc/install.texi: Note that 'gcc' is now a 2.57 directory.
	
	* configure.in: Rename to configure.ac.
	* configure.ac: Renamed from configure.in; make minimum necessary
	changes for autoconf 2.5x.
	* aclocal.m4: Make minimum necessary changes for autoconf 2.5x.
	* configure: Regenerate with autoconf 2.57.
	
	2004-01-03  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mips/linux.h: Fix comment formatting.
	* config/mips/mips.c: Likewise.
	* config/mips/mips.h: Likewise.
	* config/mips/mips.md: Likewise.
	* config/mips/netbsd.h: Likewise.
	* config/mips/windiss.h: Likewise.
	
	2004-01-02  Richard Henderson  <rth@redhat.com>
	
	* config/i386/i386.md (fp constant pool splitter): Reorg suppression
	for sse and 387; add suppression for mmx.
	
	2004-01-02  Andrew Pinski  <pinskia@physics.uc.edu>
	
	* loop.c (loop_optimize): Free all loops_info's mems.
	
	* c-typeck.c (finish_init): Free spelling_base before
	setting it again.
	
	* cfgloop.c (flow_loops_find): Always free the sbitmap
	headers.
	
	* predict.c (estimate_probability): Free bbs after being
	done with it.
	
	2004-01-02  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/mn10300/mn10300.h (PREDICATE_CODES): Add
	const_8bit_operand and call_address_operand.
	
	2004-01-02  Jan Hubicka  <jh@suse.cz>
	
	* cgraphunit.c (cgraph_optimize_function):  Call optimize_inline_calls
	when there is nothing to inline but warnings are requested.
	(cgraph_decide_inlining):  Fix memory leak.
	
	2004-01-02  Jan Hubicka  <jh@suse.cz>
	
	* expr.c (store_constructor):  Fix pasto in previous patch.
	
	2004-01-02  Kazu Hirata  <kazu@cs.umass.edu>
	
	* config/i386/cygming.h: Fix comment formatting.
	* config/i386/djgpp.h: Likewise.
	* config/i386/gthr-win32.c: Likewise.
	* config/i386/i386-interix.h: Likewise.
	* config/i386/i386.c: Likewise.
	* config/i386/i386.h: Likewise.
	* config/i386/openbsd.h: Likewise.
	* config/i386/winnt.c: Likewise.
	* config/i386/xm-mingw32.h: Likewise.
	
	2004-01-02  Joseph S. Myers  <jsm@polyomino.org.uk>
	
	* doc/gcc.texi, doc/invoke.texi, doc/install.texi: Update
	copyright and last modification dates.
	
	2004-01-02  Andreas Jaeger  <aj@suse.de>, Gerald Pfeifer  <gp@suse.de>
	
	* doc/install.texi (Specific): Mention x86_64.
	
	2004-01-01  Hans-Peter Nilsson  <hp@bitrange.com>
	
	* builtins.c (expand_builtin_apply_args_1) [STACK_GROWS_DOWNWARD]:
	Call force_operand on plus_constant result.
	
	2004-01-01  Jan Hubicka  <jh@suse.cz>
	
	* expmed.c (store_bit_field, extract_bit_field): Use new named patterns
	* expr.c (store_constructor): Use vec_init pattern.
	* genopinit.c (optabs): Initailize vec_set/vec_extract/vec_init.
	* optabs.h (optab_index): ADD OTI_vec_set/OTI_vec_extract/OTI_vec_init
	(vec_set_optab, vec_extract_optab, vec_init_optab): New.
	* i386.md (vec_setv2df, vec_extractv2df, vec_setv4sf, vec_extractv4sf):
	New patterns.
	(sse2_unpc?pd): Fix pattern.
	(sse2_movlpd): Kill.
	(sse2_movsd): Deal with movlpd too.
	* i386.c (ix86_expand_builtin): Use sse2_movsd instead of sse2_movlpd.
	(ix86_expand_vector_init): New.
	* emmintrin.h (__mm_set_pd, __mm_set_ps): Use vector extensions.
	* md.texi (vec_set, vec_extract): Document
	
	2003-12-31  Jan Hubicka  <jh@suse.cz>
	
	PR opt/13473
	* recog.c (validate_replace_rtx_1):  Take care for RTL sharing inside
	ASM input operands
	
	PR opt/12617
	* toplev.c (dump_file_index): Reorder ce3 and bbro.
	(dump_file): Likewise.
	(rest_of_compilation): Likewise.
	
	PR debug/13367
	* cgraph.c (cgraph_function_possibly_inlined):  Even with
	flag_really_no_inline we inline always_inline functions.
	* cgraphunit.c (cgraph_analyze_function): Clear inlinable flag
	for non-always_inline functions when there is flag_really_no_inline.
	(cgraph_decide_inlining): Limit work done when not inlining.
	(cgraph_decide_inlining_incrementally): Likewise.
	(cgraph_optimize_function): Check whether something got inlined.
	* c-objc-common.c (c_disregard_inline_limits): Do not always inline
	extern inline functions when not inlining.
	
	* opts.c (decode_options):  Disable crossjumping at -O1
	* invoke.texi (-O1): Document change.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.2506&r2=2.2507
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&r1=1.1232&r2=1.1233
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/bt-load.c.diff?cvsroot=gcc&r1=2.12&r2=2.13
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/common.opt.diff?cvsroot=gcc&r1=1.24&r2=1.25
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flags.h.diff?cvsroot=gcc&r1=1.127&r2=1.128
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/opts.c.diff?cvsroot=gcc&r1=1.51&r2=1.52
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/toplev.c.diff?cvsroot=gcc&r1=1.869&r2=1.870
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/invoke.texi.diff?cvsroot=gcc&r1=1.395&r2=1.396



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12826