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* [Bug c/17853] New: -O2 ICE for MMX testcase
@ 2004-10-05 21:41 stuart at apple dot com
2004-10-05 22:21 ` [Bug target/17853] " pinskia at gcc dot gnu dot org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: stuart at apple dot com @ 2004-10-05 21:41 UTC (permalink / raw)
To: gcc-bugs
gcc -O2 -mmmx i386-mmx-5.c
GCC fails thus:
---------------------------------------------
i386-mmx-5.c: In function 'main':
i386-mmx-5.c:15: internal compiler error: in simplify_binary_operation, at simplify-rtx.c:2151
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
---------------------------------------------
/* { dg-do run { target i?86-*-* x86_64-*-* } } */
/* { dg-options "-O2 -mmmx" } */
#include <mmintrin.h>
#include <stdlib.h>
__m64 global_mask;
main()
{
__m64 zero = _mm_setzero_si64();
__m64 mask = _mm_cmpeq_pi8( zero, zero );
mask = _mm_unpacklo_pi8( mask, zero );
global_mask = mask;
exit(0);
}
-----------------------------------------------------
--
Summary: -O2 ICE for MMX testcase
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: stuart at apple dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-linux-gnu
GCC host triplet: i686-linux-gnu
GCC target triplet: i686-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/17853] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
@ 2004-10-05 22:21 ` pinskia at gcc dot gnu dot org
2004-10-05 22:22 ` [Bug rtl-optimization/17853] " pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-05 22:21 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-05 22:21 -------
Confirmed, the problem comes down to:
(insn 29 28 31 0 (set (reg:V8QI 59 [ D.2054 ])
(eq:V8QI (reg:V8QI 60 [ D.2051 ])
(reg:V8QI 60 [ D.2051 ]))) 627 {eqv8qi3} (insn_list 28 (nil))
(expr_list:REG_EQUAL (const_int 1 [0x1])
(nil)))
Looks like CSE is adding the REG_EQUAL for no reason.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Component|c |target
Ever Confirmed| |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2004-10-05 22:21:37
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
2004-10-05 22:21 ` [Bug target/17853] " pinskia at gcc dot gnu dot org
@ 2004-10-05 22:22 ` pinskia at gcc dot gnu dot org
2004-10-05 22:29 ` [Bug rtl-optimization/17853] [3.4/4.0 Regression] " pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-05 22:22 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-05 22:22 -------
Really the const_int should be instead a const_vect.
--
What |Removed |Added
----------------------------------------------------------------------------
Component|target |rtl-optimization
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4/4.0 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
2004-10-05 22:21 ` [Bug target/17853] " pinskia at gcc dot gnu dot org
2004-10-05 22:22 ` [Bug rtl-optimization/17853] " pinskia at gcc dot gnu dot org
@ 2004-10-05 22:29 ` pinskia at gcc dot gnu dot org
2004-10-05 22:32 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-05 22:29 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |3.4.3 4.0.0
Known to work| |3.3.3
Summary|-O2 ICE for MMX testcase |[3.4/4.0 Regression] -O2 ICE
| |for MMX testcase
Target Milestone|--- |3.4.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4/4.0 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
` (2 preceding siblings ...)
2004-10-05 22:29 ` [Bug rtl-optimization/17853] [3.4/4.0 Regression] " pinskia at gcc dot gnu dot org
@ 2004-10-05 22:32 ` pinskia at gcc dot gnu dot org
2004-10-09 19:28 ` cvs-commit at gcc dot gnu dot org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-05 22:32 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-05 22:32 -------
: Search converges between 2003-02-08-trunk (#179) and 2003-02-10-trunk (#180).
I almost this it was caused by:
2003-02-09 Jan Hubicka <jh@suse.cz>
* i386.md (ahi?v*3): Set third operand type to TImode.
* i386.c (ix86_expand_binop_builtin): Extend operand when needed.
* simplify-rtx.c (simplify_subreg): Fix conversion from vector into
integer mode.
* rtl.def (VEC_MERGE, VEC_SELECT, VEC_CONCAT, VEC_DUPLICATE):
Change code so they are arithmetic expressions now.
* simplify-rtx.c (simplify_unary_operation, simplify_binary_operation,
simplify_ternary_operation): Deal with VEC_* expressions.
* i386.md (vmaskcmp, pinsrw, movd patterns): Fix RTL representation.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4/4.0 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
` (3 preceding siblings ...)
2004-10-05 22:32 ` pinskia at gcc dot gnu dot org
@ 2004-10-09 19:28 ` cvs-commit at gcc dot gnu dot org
2004-10-09 20:10 ` [Bug rtl-optimization/17853] [3.4 " pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-10-09 19:28 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-10-09 19:28 -------
Subject: Bug 17853
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: sayle@gcc.gnu.org 2004-10-09 19:27:55
Modified files:
gcc : ChangeLog simplify-rtx.c
gcc/doc : rtl.texi tm.texi
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg: i386-mmx-5.c
Log message:
2004-10-09 Roger Sayle <roger@eyesopen.com>
PR rtl-optimization/17853
* simplify-rtx.c (simplify_relational_operation): Correct comment.
Reorganize handling of comparison operations with floating point
results (always return 0.0 even without FLOAT_STORE_FLAG_VALUE).
Likewise, introduce support for comparison operations with vector
result types, introducing a new VECTOR_STORE_FLAG_VALUE target macro.
* doc/rtl.texi: Document new VECTOR_STORE_FLAG_VALUE target macro.
* doc/tm.texi: Likewise.
2004-10-09 Stuart Hastings <stuart@apple.com>
Roger Sayle <roger@eyesopen.com>
PR rtl-optimization/17853
* gcc.dg/i386-mmx-5.c: New testcase.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5821&r2=2.5822
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.204&r2=1.205
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/rtl.texi.diff?cvsroot=gcc&r1=1.72&r2=1.73
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/tm.texi.diff?cvsroot=gcc&r1=1.378&r2=1.379
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4421&r2=1.4422
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-mmx-5.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
` (4 preceding siblings ...)
2004-10-09 19:28 ` cvs-commit at gcc dot gnu dot org
@ 2004-10-09 20:10 ` pinskia at gcc dot gnu dot org
2004-10-10 17:52 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-09 20:10 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-09 20:10 -------
Fixed on the mainline.
--
What |Removed |Added
----------------------------------------------------------------------------
Known to fail|3.4.3 4.0.0 |3.4.3
Known to work|3.3.3 |3.3.3 4.0.0
Summary|[3.4/4.0 Regression] -O2 ICE|[3.4 Regression] -O2 ICE for
|for MMX testcase |MMX testcase
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
` (5 preceding siblings ...)
2004-10-09 20:10 ` [Bug rtl-optimization/17853] [3.4 " pinskia at gcc dot gnu dot org
@ 2004-10-10 17:52 ` pinskia at gcc dot gnu dot org
2004-10-10 21:53 ` cvs-commit at gcc dot gnu dot org
2004-10-10 21:56 ` pinskia at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-10 17:52 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-10 17:52 -------
Patch here: <http://gcc.gnu.org/ml/gcc-patches/2004-10/msg00859.html>.
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
` (6 preceding siblings ...)
2004-10-10 17:52 ` pinskia at gcc dot gnu dot org
@ 2004-10-10 21:53 ` cvs-commit at gcc dot gnu dot org
2004-10-10 21:56 ` pinskia at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-10-10 21:53 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-10-10 21:53 -------
Subject: Bug 17853
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-3_4-branch
Changes by: sayle@gcc.gnu.org 2004-10-10 21:53:39
Modified files:
gcc : ChangeLog combine.c cse.c simplify-rtx.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg: i386-mmx-5.c
Log message:
2004-10-10 Roger Sayle <roger@eyesopen.com>
PR rtl-optimization/17853
* combine.c (combine_simplify_rtx): Don't attempt any simplifications
of vector mode comparison operators.
* cse.c (fold_rtx): Likewise.
* simplify-rtx.c (simplify_gen_relational): Avoid calling
simplify_relational_operation with vector mode comparison operators.
(simplify_rtx): Likewise.
2004-10-10 Stuart Hastings <stuart@apple.com>
Roger Sayle <roger@eyesopen.com>
PR rtl-optimization/17853
* gcc.dg/i386-mmx-5.c: New testcase.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.652&r2=2.2326.2.653
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.400.4.9&r2=1.400.4.10
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cse.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.278.4.6&r2=1.278.4.7
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.172.4.2&r2=1.172.4.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.282&r2=1.3389.2.283
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/i386-mmx-5.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.4.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/17853] [3.4 Regression] -O2 ICE for MMX testcase
2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
` (7 preceding siblings ...)
2004-10-10 21:53 ` cvs-commit at gcc dot gnu dot org
@ 2004-10-10 21:56 ` pinskia at gcc dot gnu dot org
8 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-10 21:56 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-10 21:56 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17853
^ permalink raw reply [flat|nested] 10+ messages in thread
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Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
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2004-10-05 21:41 [Bug c/17853] New: -O2 ICE for MMX testcase stuart at apple dot com
2004-10-05 22:21 ` [Bug target/17853] " pinskia at gcc dot gnu dot org
2004-10-05 22:22 ` [Bug rtl-optimization/17853] " pinskia at gcc dot gnu dot org
2004-10-05 22:29 ` [Bug rtl-optimization/17853] [3.4/4.0 Regression] " pinskia at gcc dot gnu dot org
2004-10-05 22:32 ` pinskia at gcc dot gnu dot org
2004-10-09 19:28 ` cvs-commit at gcc dot gnu dot org
2004-10-09 20:10 ` [Bug rtl-optimization/17853] [3.4 " pinskia at gcc dot gnu dot org
2004-10-10 17:52 ` pinskia at gcc dot gnu dot org
2004-10-10 21:53 ` cvs-commit at gcc dot gnu dot org
2004-10-10 21:56 ` pinskia at gcc dot gnu dot org
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