[Bug fortran/43665] New: Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[Bug fortran/43665] New: Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

After the support goes into the middle end, cf.
http://gcc.gnu.org/ml/fortran/2010-04/msg00012.html and
http://gcc.gnu.org/ml/gcc-patches/2009-11/msg01257.html , one should use the
the new function call argument/return value attributes.

Note: One needs to be careful about this in terms of multi-image coarrays (SYNC
ALL, array single-side access) and true asynchronous I/O (WRITE ... WAIT) as
otherwise the middle end optimizes too much. (Telling this the middle end via a
specifically tailored attribute might be better, though.)

+ /* Call argument flags.  */
+ 
+ /* Nonzero if the argument is not dereferenced recursively, thus only
+    directly reachable memory is read or written.  */
+ #define EAF_DIRECT            (1 << 0)
+ /* Nonzero if memory reached by the argument is not clobbered.  */
+ #define EAF_NOCLOBBER         (1 << 1)
+ /* Nonzero if the argument does not escape.  */
+ #define EAF_NOESCAPE          (1 << 2)
+ /* Nonzero if the argument is not used by the function.  */
+ #define EAF_UNUSED            (1 << 3)
+
+ /* Call return flags.  */
+ 
+ /* Mask for the argument number that is returned.  Lower two bits of
+    the return flags, encodes argument slots zero to three.  */
+ #define ERF_RETURN_ARG_MASK   (3)
+ /* Nonzero if the return value is equal to the argument number
+    flags & ERF_RETURN_ARG_MASK.  */
+ #define ERF_RETURNS_ARG               (1 << 2)
+ /* Nonzero if the return value does not alias with anything.  Functions
+    with the malloc attribute have this set on their return value.  */
+ #define ERF_NOALIAS           (1 << 3)


-- 
           Summary: Optimization of libgfortran calls: function annotations
                    for noclobber/noescape arguments
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: missed-optimization
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #1 from burnus at gcc dot gnu dot org  2010-04-06 13:50 -------
Some more quotes:

> You can mark parameters 1) unused, 2) pointed-to read-only,
> 3) not escaping, 4) only once dereferenced (thus, access only
> *p, not **p)
>
> You can mark return values as being a direct copy of arguments
> or as non-aliasing (similar to the malloc attribute).

+       attr = lookup_attribute ("fnspec", TYPE_ATTRIBUTES (type));

+   switch (TREE_STRING_POINTER (attr)[1 + arg])
+     {
+     case 'x':
+     case 'X':
+       return EAF_UNUSED;
+ 
+     case 'R':
+       return EAF_DIRECT | EAF_NOCLOBBER | EAF_NOESCAPE;
+ 
+     case 'r':
+       return EAF_NOCLOBBER | EAF_NOESCAPE;
+ 
+     case 'W':
+       return EAF_DIRECT | EAF_NOESCAPE;
+ 
+     case 'w':
+       return EAF_NOESCAPE;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #2 from burnus at gcc dot gnu dot org  2010-05-10 10:10 -------
I/O: Currently both READ an WRITE map to the same function; this should be
changed such that for WRITE the arguments are marked as EAF_NOCLOBBER. This can
be done using aliases, cf. http://gcc.gnu.org/ml/fortran/2010-05/msg00048.html

For the committal of the middle-end / front end, see
- http://gcc.gnu.org/ml/fortran/2010-05/msg00092.html (committal)
- http://gcc.gnu.org/ml/fortran/2010-05/msg00032.html (patch)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[dfranke at gcc dot gnu dot org]

------- Comment #3 from dfranke at gcc dot gnu dot org  2010-05-13 10:31 -------
Initial patch (trans-decl.c, trans.io.c) here:
    http://gcc.gnu.org/ml/fortran/2010-05/msg00124.html

Mapping formal arguments to fnspec should be doable, but I'm experienced enough
in tree-things to continue.


-- 

dfranke at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dfranke at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-05-13 10:31:22
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #4 from burnus at gcc dot gnu dot org  2010-07-13 13:21 -------
Subject: Bug 43665

Author: burnus
Date: Tue Jul 13 13:20:52 2010
New Revision: 162140

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162140
Log:
2010-07-13  Daniel Franke  <franke.daniel@gmail.com>
            Tobias Burnus  <burnus@net-b.de>

        PR fortran/43665
        * trans-decl.c (gfc_build_intrinsic_function_decls): Add
        noclobber/noescape annotations to function calls.
        (gfc_build_builtin_function_decls): Likewise.


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-decl.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] Optimization of libgfortran calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #5 from burnus at gcc dot gnu dot org  2010-07-13 17:26 -------
Subject: Bug 43665

Author: burnus
Date: Tue Jul 13 17:26:02 2010
New Revision: 162147

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=162147
Log:
2010-07-13  Tobias Burnus  <burnus@net-b.de>
            Daniel Franke  <franke.daniel@gmail.com>

        PR fortran/43665
        * trans.h (gfc_build_library_function_decl_with_spec): New
        prototype.
        * trans-decl.c (gfc_build_library_function_decl_with_spec):
        Removed static.
        * trans-io (gfc_build_io_library_fndecls): Add "fn spec"
        annotations.


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-decl.c
    trunk/gcc/fortran/trans-io.c
    trunk/gcc/fortran/trans.h


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #6 from burnus at gcc dot gnu dot org  2010-07-13 17:32 -------
Main library calls are done.

TODO:
- Intrinsic calls such as "call ctime()" which do not have a function
declaration
- Nonintrinsic functions with non-pointer INTENT(IN/OUT); handle also
(non)clobber [target/pointer ...]
- I/O transfer: Split somehow to make it possible to distinguish READ from
WRITE.
- Possibly, handle somehow unused arguments / not-explicitly given INTENT(in)s 
by saving this information


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Optimization of libgfortran |INTENT(IN) etc. optimization
                   |calls: function annotations |of calls: function
                   |for noclobber/noescape      |annotations for
                   |arguments                   |noclobber/noescape arguments


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #7 from burnus at gcc dot gnu dot org  2010-07-20 15:06 -------
Created an attachment (id=21265)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21265&action=view)
Draft patch for external/user procs with INTENT (mostly OK, but breaks existing
test)

The attached patch mostly works, except for
gfortran.dg/allocatable_scalar_4.f90.

The latter file works fine with -O1 but with -O2 it crashes. At -O1 with
-fdump-tree-original, essentially only one "if" is optimized away:

  b = 7482
  call checkOptional(.false.,.true., 7482)
  if (b /= 7482) call abort() ! <<<< This line is removed for -O1
  call checkOptional(.true., .true., 7482, b)

I could not see anything suspicious for -O{2,1} -fdump-tree-optimized; one
should check -fdump-tree-optimized-all. I somehow have the feeling that some
other DECL is wrong. Cf. PR 44945 for another manifestation of DECL problems
(though there for derived types).

Note: Using -fwhole-file does not help.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #8 from burnus at gcc dot gnu dot org  2010-07-20 15:26 -------
Reduced test case (of allocatable_scalar_4.f90) - fails with "ERROR STOP 1":

program test
  implicit none
  integer, allocatable :: b
  allocate(b)
  b = 7482
  call checkOptional(.false.,.true., 7482)
  call checkOptional(.true., .true., 7482, b)
  if (b /= 46) error stop 1
contains
  subroutine checkOptional(prsnt, alloc, val, x)
    logical, intent(in) :: prsnt, alloc
    integer, allocatable, optional :: x
    integer, intent(in) :: val
    if (present(x)) then
      if (allocated(x) .neqv. alloc) error stop 2
    end if
    if (present(x)) then
      if (allocated(x)) then
        if (x /= val) error stop 3
      end if
    end if
    if (present(x)) then
      x = 46
    end if
  end subroutine checkOptional
end program test


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #9 from burnus at gcc dot gnu dot org  2010-07-20 15:58 -------
The procedure 'checkoptional' gets '.rrrw' set as the fn spec.

With -O1, the if after the first "checkoptional" gets properly optimized away
(cf. comment 7 and original test case).

With -O2, the number of arguments is reduced to one (NULL vs. &b) and the
condition
  if (b /= 46) error stop 1
is changed to
  error stop 1
(cf. -fdump-tree-optimized)

For me it looks as if the "fn spec" information is not moved along when
arguments are eliminated but remain at the previous position. It works if one
swaps the order (i.e. it works if the optional argument is at position one).

Richard, does this make sense or am I completely off track?


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[rguenth at gcc dot gnu dot org]

------- Comment #10 from rguenth at gcc dot gnu dot org  2010-07-20 16:01 -------
No, this problem was present for ipa-sra, but I thought it was fixed.

Does -fno-ipa-sra help?  Martin?


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jamborm at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #11 from burnus at gcc dot gnu dot org  2010-07-20 16:12 -------
(In reply to comment #10)
> No, this problem was present for ipa-sra, but I thought it was fixed.
> Does -fno-ipa-sra help?

No, it doesn't. But with that option, the number of arguments still reduces
from 4 to 2 (before: 1). But again, the code works if one reorders the
arguments such that the "w" attribute matches the "x" argument (now at position
2 instead of 1).


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[rguenther at suse dot de]

------- Comment #12 from rguenther at suse dot de  2010-07-21 08:09 -------
Subject: Re:  INTENT(IN) etc. optimization of calls:
 function annotations for noclobber/noescape arguments

On Tue, 20 Jul 2010, burnus at gcc dot gnu dot org wrote:

> ------- Comment #11 from burnus at gcc dot gnu dot org  2010-07-20 16:12 -------
> (In reply to comment #10)
> > No, this problem was present for ipa-sra, but I thought it was fixed.
> > Does -fno-ipa-sra help?
> 
> No, it doesn't. But with that option, the number of arguments still reduces
> from 4 to 2 (before: 1). But again, the code works if one reorders the
> arguments such that the "w" attribute matches the "x" argument (now at position
> 2 instead of 1).

So I wonder what code removes the arguments then.

Richard.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[jamborm at gcc dot gnu dot org]

------- Comment #13 from jamborm at gcc dot gnu dot org  2010-07-21 08:27 -------
(In reply to comment #12)
> So I wonder what code removes the arguments then.
> 

IPA-CP can do that for quite some time please try with -fno-ipa-cp.

(I don't have a trunk built with enabled fortran at hand and I am a
bit overwhelmed with bugs and other stuff recently so I can have a
look at this but it will take at least a few days before I get to it.)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #14 from burnus at gcc dot gnu dot org  2010-07-22 15:36 -------
(In reply to comment #13)
> (In reply to comment #12)
> IPA-CP can do that for quite some time please try with -fno-ipa-cp.

As expected: It works with -fno-ipa-cp.


> (I don't have a trunk built with enabled fortran at hand and I am a
> bit overwhelmed with bugs and other stuff recently so I can have a
> look at this but it will take at least a few days before I get to it.)

Thanks.

Some pre-analysis: The "fn spec" (the space is there to prevent other than
internal use - thus I cannot create a C test case) is converted in gimple.c's
gimple_call_arg_flags to EAF_* constants.

tree-ssa-structalias.c's handle_rhs_call uses them via:
  for (i = 0; i < gimple_call_num_args (stmt); ++i)
      [...]
      int flags = gimple_call_arg_flags (stmt, i);
thus, the position seems to matter here.

The latter is called by find_func_aliases in an "if (!in_ipa_mode ..." block.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[jamborm at gcc dot gnu dot org]

------- Comment #15 from jamborm at gcc dot gnu dot org  2010-09-06 14:12 -------
I tried compiling the testcase from comment #8 and it did not fail for
me either on i686-linux ox x86_64-linux.  Can you please check that it
still fails for you?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[jamborm at gcc dot gnu dot org]

------- Comment #16 from jamborm at gcc dot gnu dot org  2010-09-06 18:25 -------
Created an attachment (id=21714)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21714&action=view)
Patch to address IPA-CP parameter removal issues

This patch makes IPA-CP to refrain from modifying a function when it
sees a any type attributes.  It fixes the test case.  I do not expect
it to cause any problems elsewhere but I have not yet bootstrapped or
tested it (I have just scheduled both for tonight).

As far as I understand it there is already a test in our testsuite
that fails (with the patch from comment #7 applied) and so I am not
going to add an extra one.

I think it's best to check this in separately and I will submit it for
approval tomorrow if there are no unforeseen problems.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #17 from burnus at gcc dot gnu dot org  2010-09-06 18:43 -------
(In reply to comment #16)
> This patch makes IPA-CP to refrain from modifying a function when it
> sees a any type attributes.

In a way that's unfortunate: Both "fn attr" and argument removal are
optimization options.

> As far as I understand it there is already a test in our testsuite
> that fails (with the patch from comment #7 applied) and so I am not
> going to add an extra one.

OK.

> I think it's best to check this in separately and I will submit it for
> approval tomorrow if there are no unforeseen problems.

I will also submit my patch - for committal after yours is in.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[jamborm at gcc dot gnu dot org]

------- Comment #18 from jamborm at gcc dot gnu dot org  2010-09-07 17:01 -------
Subject: Bug 43665

Author: jamborm
Date: Tue Sep  7 17:00:44 2010
New Revision: 163960

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163960
Log:
2010-09-07  Martin Jambor  <mjambor@suse.cz>

        PR fortran/43665
        * ipa-cp.c (ipcp_versionable_function_p): Return false if there
        are any type attributes.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/ipa-cp.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #19 from burnus at gcc dot gnu dot org  2010-09-08 06:25 -------
Reviewed patch ("OK") available at
  http://gcc.gnu.org/ml/fortran/2010-09/msg00198.html
however, it causes regressions as some of the intrinsics (in intrinsic.c) have
the wrong intents - which causes wrong code (too much optimized away). Thus,
one first needs to audit and fix intrinsic.c before this patch can be
committed.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #20 from burnus at gcc dot gnu dot org  2010-09-09 08:43 -------
Subject: Bug 43665

Author: burnus
Date: Thu Sep  9 08:42:52 2010
New Revision: 164052

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164052
Log:
2010-09-09  Tobias Burnus  <burnus@net-b.de>

        PR fortran/43665
        * intrincic.texi (FGET, FGETC, FPUT, FPUTC, FSTAT, GETCWD, KILL,
        STAT): Show also syntax for the function version.
        * intrinsic.c (add_sym_1s_intent, add_sym_2s_intent,
         add_sym_3s_intent): Remove function.
        (add_sym_1s, add_sym_2s, add_sym_3s): Take always the intent
        as argument.
        (add_sym_2_intent): New function.
        (add_functions): Set intent for functions which modify
        the argument: fstat, fgetc, fget, hostnm, lstat, stat. Change
        argument name of hostnm from "a" to "c"
        (add_subroutines): Change add_sym_*s_intent to
        add_sym_*s and add intent to the add_sym_*s calls. 


Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/intrinsic.c
    trunk/gcc/fortran/intrinsic.texi


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #21 from burnus at gcc dot gnu dot org  2010-09-10 12:09 -------
Created an attachment (id=21765)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21765&action=view)
Updated patch

Updated patch to fix review issues and the Cray patch issue. I won't be able to
work on this (i.e. regtest + submit) for the next days thus I put it here.

Cf. http://gcc.gnu.org/ml/fortran/2010-09/msg00198.html
and http://gcc.gnu.org/ml/fortran/2010-09/msg00234.html


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #21265|0                           |1
        is obsolete|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #22 from burnus at gcc dot gnu dot org  2010-09-10 12:12 -------
(In reply to comment #21)
> Created an attachment (id=21765)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21765&action=view) [edit]
> Updated patch

Note: I forgot to include the test case from attachment 21265


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[dominiq at lps dot ens dot fr]

------- Comment #23 from dominiq at lps dot ens dot fr  2010-09-11 15:12 -------
I have applied the patch in comment #21 without regression, but the test case
from attachment 21265 fails:

FAIL: gfortran.dg/intent_optimize_1.f90  -O  scan-tree-dump-times optimized
"does_not_exist" 0


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #24 from burnus at gcc dot gnu dot org  2010-09-12 09:32 -------
(In reply to comment #23)
> I have applied the patch in comment #21 without regression, but the test case
> from attachment 21265 [edit] fails:

-  create_fn_spec (sym, type);
+  type = create_fn_spec (sym, type);

as in the original patch.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[dominiq at lps dot ens dot fr]

------- Comment #25 from dominiq at lps dot ens dot fr  2010-09-12 10:13 -------
> -  create_fn_spec (sym, type);
> +  type = create_fn_spec (sym, type);
> 
> as in the original patch.

With this change the test succeeds.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665

[Bug fortran/43665] INTENT(IN) etc. optimization of calls: function annotations for noclobber/noescape arguments

[burnus at gcc dot gnu dot org]

------- Comment #26 from burnus at gcc dot gnu dot org  2010-09-16 21:30 -------
Subject: Bug 43665

Author: burnus
Date: Thu Sep 16 21:30:05 2010
New Revision: 164348

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=164348
Log:
2010-09-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/43665
        * trans-types.c (create_fn_spec): New function.
        (gfc_get_function_type): Call it.

2010-09-16  Tobias Burnus  <burnus@net-b.de>

        PR fortran/43665
        * gfortran.dg/cray_pointers_2.f90: Disable inlining to avoid
        optimizations.
        * gfortran.dg/intent_optimize_1.f90: New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/intent_optimize_1.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-types.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gfortran.dg/cray_pointers_2.f90


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43665