[Bug inline-asm/15899] New: internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[Bug inline-asm/15899] New: internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[trentalg at aston dot ac dot uk]

I get the following fatal error while trying to compile glibc from CVS (20040609):

dl-load.c:206: internal compiler error: tree check: expected ssa_name, have
var_decl in verify_ssa, at tree-ssa.c:402
Please submit a full bug report,
with preprocessed source if appropriate.

Also, severel warning about functions not being inline-able are reported with
the same source file (dl-load.c):

dl-load.c: In function `_dl_map_object_from_fd':
../sysdeps/i386/i486/bits/string.h:315: warning: inlining failed in call to
'__memset_ccn_by4': function not inlinable
dl-load.c:1197: warning: called from here
../sysdeps/i386/i486/bits/string.h:346: warning: inlining failed in call to
'__memset_ccn_by2': function not inlinable
dl-load.c:1197: warning: called from here
../sysdeps/i386/i486/bits/string.h:122: warning: inlining failed in call to
'__memcpy_g': function not inlinable
dl-load.c:1234: warning: called from here

GCC is version 3.5.0 from CVS 20040608.

-- 
           Summary: internal compiler error: tree check: expected ssa_name,
                    have var_decl in verify_ssa
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: critical
          Priority: P1
         Component: inline-asm
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: trentalg at aston dot ac dot uk
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[trentalg at aston dot ac dot uk]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 16:29 -------
Can you attach the preprocessed source?
------- Additional Comments From trentalg at aston dot ac dot uk  2004-06-09 16:29 -------
Created an attachment (id=6505)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6505&action=view)
Pre-processor output


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|inline-asm                  |tree-optimization
           Keywords|                            |ice-on-valid-code
            Summary|internal compiler error:    |[3.5 Regression] internal
                   |tree check: expected        |compiler error: tree check:
                   |ssa_name, have var_decl in  |expected ssa_name, have
                   |verify_ssa                  |var_decl in verify_ssa
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 16:29 -------
Can you attach the preprocessed source?
------- Additional Comments From trentalg at aston dot ac dot uk  2004-06-09 16:29 -------
Created an attachment (id=6505)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6505&action=view)
Pre-processor output


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|inline-asm                  |tree-optimization
           Keywords|                            |ice-on-valid-code
            Summary|internal compiler error:    |[3.5 Regression] internal
                   |tree check: expected        |compiler error: tree check:
                   |ssa_name, have var_decl in  |expected ssa_name, have
                   |verify_ssa                  |var_decl in verify_ssa
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 16:34 -------
What options are you passing to gcc?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[trentalg at aston dot ac dot uk]

------- Additional Comments From trentalg at aston dot ac dot uk  2004-06-09 16:43 -------
Glibc build was configured with the following command:

AS=/usr/bin/as LD=/usr/bin/ld CFLAGS="-O3 -march=pentium4 -mfpmath=sse -msse2
-msse -mmmx" CXXFLAGS="-O3 -march=pentium4 -mfpmath=sse -msse2 -msse -mmmx"
../../libc/configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --sysconfdir=/etc --localstatedir=/var
--enable-omitfp=yes --enable-kernel=2.6.4 --enable-add-ons=nptl --with-tls

Gcc itself was compiled using:

CFLAGS="-O3 -march=pentium4 -mfpmath=sse -msse2 -msse -mmmx -pthread"
CXXFLAGS="-O3 -march=pentium4 -mfpmath=sse -msse2 -msse -mmmx -pthread"
../gcc/configure  --prefix=/usr --localstatedir=/var --sysconfdir=/etc
--infodir=/usr/share/info --mandir=/usr/share/man --with-gnu-as --with-gnu-ld
--enable-threads=posix --with-arch=pentium4 --with-tune=pentium4
--with-gmp-dir=/mnt/source/cvs/gmp-4.1.3

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 17:44 -------
Just a note I can confirm this at -O2 -finline-functions -fno-unit-at-a-time (the -fno-unit-at-a-time is 
there is reducing it can do it easier).

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 18:05 -------
This happens after SSAPRE.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 18:22 -------
Created an attachment (id=6506)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6506&action=view)
Much reduced source

Reduced to 164 lines.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[belyshev at lubercy dot com]

------- Additional Comments From belyshev at lubercy dot com  2004-06-09 18:35 -------
Small testcase:
-------------------------------------------------------------------------------
void foo (char *name)
{
  if (*name)
    name ++;
  
  while (name);
  
  asm ("hello, world" : "=r" (name));
}
-------------------------------------------------------------------------------

Confirmed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |
           Priority|P1                          |P2
   Last reconfirmed|0000-00-00 00:00:00         |2004-06-09 18:35:41
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 18:50 -------
Note Serge's source is filed in PR 15902 because it is not exactly the reduced source for this example 
but still a bug.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-09 18:53 -------
And here is the right reduced source:
void foo (char *name)
{
  if (*name)
    name ++;
  while (name[0]);
  asm ("hello, world" : "=r" (name));
}

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[dberlin at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2004-06-09 18:35:41         |2004-06-10 16:14:28
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-06-12 00:18 -------
Subject: Bug 15899

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dberlin@gcc.gnu.org	2004-06-12 00:18:36

Modified files:
	gcc            : ChangeLog tree-dfa.c tree-flow-inline.h 
	                 tree-flow.h tree-ssa-dce.c tree-ssa-pre.c 
	                 tree.h 
	gcc/testsuite/gcc.dg/tree-ssa: ssa-pre-1.c ssa-pre-2.c 
Added files:
	gcc/testsuite/gcc.c-torture/compile: 20040611-1.c 

Log message:
	2004-06-11  Steven Bosscher <stevenb@suse.de>
	
	* tree-ssa-dce.c (mark_control_dependent_edges_necessary):
	Don't try to mark anything control dependent on the entry or
	exit blocks.
	
	2004-06-11  Daniel Berlin  <dberlin@dberlin.org>
	
	Fix Bug 15899
	Fix Bug 15460
	* tree.h (SSA_NAME_VALUE): New macro.
	(struct tree_ssa_name): Add value_handle member.
	* tree-ssa-pre.c: Replaced.
	* tree-flow.h (tree_ann_type): Add CST_ANN, EXPR_ANN.
	(struct cst_ann_d): New.
	(struct expr_ann_d): New.
	(union tree_ann_d): Add cst_ann, expr_ann.
	* tree-dfa.c (create_cst_ann): New function.
	(create_expr_ann): Ditto.
	* tree-flow-inline.h (cst_ann): New function.
	(expr_ann): Ditto.
	(get_cst_ann): Ditto.
	(get_expr_ann): Ditto..

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.3934&r2=2.3935
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&r1=2.7&r2=2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow-inline.h.diff?cvsroot=gcc&r1=2.4&r2=2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.7&r2=2.8
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dce.c.diff?cvsroot=gcc&r1=2.5&r2=2.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-pre.c.diff?cvsroot=gcc&r1=2.6&r2=2.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&r1=1.510&r2=1.511
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/compile/20040611-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-1.c.diff?cvsroot=gcc&r1=1.2&r2=1.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-2.c.diff?cvsroot=gcc&r1=1.2&r2=1.3



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899

[Bug tree-optimization/15899] [3.5 Regression] internal compiler error: tree check: expected ssa_name, have var_decl in verify_ssa

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-06-12 03:31 -------
Fixed.

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15899