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* [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202
@ 2005-08-24 11:58 ma1flfs at bath dot ac dot uk
2005-08-24 12:04 ` [Bug tree-optimization/23546] " ma1flfs at bath dot ac dot uk
` (11 more replies)
0 siblings, 12 replies; 13+ messages in thread
From: ma1flfs at bath dot ac dot uk @ 2005-08-24 11:58 UTC (permalink / raw)
To: gcc-bugs
When compiling xorg-cvs gcc throws the following ICE in
programs/Xserver/fb/fbmmx.c
fbmmx.c: In function 'mmxCombineAddU':
fbmmx.c:564: internal compiler error: in for_each_index, at
tree-ssa-loop-im.c:202
gcc (GCC) 4.0.2 20050823 (prerelease)
Configured with: ../gcc-4.0-20050824/configure --prefix=/usr
--libexecdir=/usr/lib --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++
Condensed command line:
gcc -c -O2 -march=pentium4 fbmmx.i
Compiling the file without -O2 works.
As the preprocessed file is very long I will attach it to this report instead
of including it in the comment.
--
Summary: ICE in for_each_index, at tree-ssa-loop-im.c:202
Product: gcc
Version: 4.0.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ma1flfs at bath dot ac dot uk
CC: gcc-bugs at gcc dot gnu dot org
GCC host triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
@ 2005-08-24 12:04 ` ma1flfs at bath dot ac dot uk
2005-08-24 12:31 ` [Bug tree-optimization/23546] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org
` (10 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: ma1flfs at bath dot ac dot uk @ 2005-08-24 12:04 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ma1flfs at bath dot ac dot uk 2005-08-24 11:58 -------
Created an attachment (id=9575)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9575&action=view)
Preprocessed source file
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
2005-08-24 12:04 ` [Bug tree-optimization/23546] " ma1flfs at bath dot ac dot uk
@ 2005-08-24 12:31 ` pinskia at gcc dot gnu dot org
2005-08-24 12:41 ` pinskia at gcc dot gnu dot org
` (9 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-24 12:31 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-24 12:04 -------
Reducing.
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Keywords| |ice-on-valid-code
Known to fail| |4.1.0
Known to work| |3.4.0
Summary|ICE in for_each_index, at |[4.0/4.1 Regression] ICE in
|tree-ssa-loop-im.c:202 |for_each_index, at tree-ssa-
| |loop-im.c:202
Target Milestone|--- |4.0.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
2005-08-24 12:04 ` [Bug tree-optimization/23546] " ma1flfs at bath dot ac dot uk
2005-08-24 12:31 ` [Bug tree-optimization/23546] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org
@ 2005-08-24 12:41 ` pinskia at gcc dot gnu dot org
2005-08-24 12:57 ` pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-24 12:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-24 12:35 -------
This was exposed by:
2005-08-23 Paolo Bonzini <bonzini@gnu.org>
PR middle-end/23517
* fold-const.c (fold_convert): Use VIEW_CONVERT_EXPR to convert
between vectors.
* convert.c (convert_to_integer, convert_to_vector): Likewise.
Reduced testcase:
typedef int __m64 __attribute__ ((__vector_size__ (8)));
typedef char __v8qi __attribute__ ((__vector_size__ (8)));
static __inline __m64 _mm_cvtsi32_si64 (int __i) {
}
static __inline __m64 _mm_unpacklo_pi8 (__m64 __m1, __m64 __m2) {
return (__m64) __builtin_ia32_punpcklbw ((__v8qi)__m1, (__v8qi)__m2);
}
static __inline __m64 _mm_setzero_si64 (void) {
return (__m64)0LL;
}
typedef unsigned long CARD32;
static __inline__ __m64 load8888 (CARD32 v) {
return _mm_unpacklo_pi8 (_mm_cvtsi32_si64 (v), _mm_setzero_si64());
}
__attribute__((regparm(3))) void mmxCombineMaskU (CARD32 *src, const CARD32 *mask, int
width) {
const CARD32 *end = mask + width;
while (mask < end) {
__m64 a = load8888(*mask);
++mask;
}
}
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |rakdver at gcc dot gnu dot
| |org, bonzini at gcc dot gnu
| |dot org
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Known to work|3.4.0 |3.4.0 4.0.0
Last reconfirmed|0000-00-00 00:00:00 |2005-08-24 12:35:03
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (2 preceding siblings ...)
2005-08-24 12:41 ` pinskia at gcc dot gnu dot org
@ 2005-08-24 12:57 ` pinskia at gcc dot gnu dot org
2005-08-24 13:58 ` bonzini at gcc dot gnu dot org
` (7 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-24 12:57 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-24 12:40 -------
The loop is:
# mask_12 = PHI <mask_26(3), mask_6(1)>;
<L0>:;
__m2_11 = VIEW_CONVERT_EXPR<vector int>(0);
D.1667_18 = VIEW_CONVERT_EXPR<vector signed char>(__m2_11);
D.1668_19 = VIEW_CONVERT_EXPR<vector signed char>(D.1659_15);
D.1669_20 = __builtin_ia32_punpcklbw (D.1668_19, D.1667_18);
mask_26 = mask_12 + 4B;
if (end_7 > mask_26) goto <L10>; else goto <L2>;
so tree-ssa-loop-im is not handling VCE at all.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (3 preceding siblings ...)
2005-08-24 12:57 ` pinskia at gcc dot gnu dot org
@ 2005-08-24 13:58 ` bonzini at gcc dot gnu dot org
2005-08-24 14:09 ` bonzini at gcc dot gnu dot org
` (6 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: bonzini at gcc dot gnu dot org @ 2005-08-24 13:58 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gcc dot gnu dot org 2005-08-24 13:50 -------
Nicer test case:
typedef int m64 __attribute__ ((__vector_size__ (8)));
void mmxCombineMaskU (m64 * mask, int width)
{
while (--width >= 0)
*mask++ = (m64) 0LL;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (4 preceding siblings ...)
2005-08-24 13:58 ` bonzini at gcc dot gnu dot org
@ 2005-08-24 14:09 ` bonzini at gcc dot gnu dot org
2005-08-24 14:34 ` bonzini at gcc dot gnu dot org
` (5 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: bonzini at gcc dot gnu dot org @ 2005-08-24 14:09 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |bonzini at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2005-08-24 12:35:03 |2005-08-24 13:58:14
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (5 preceding siblings ...)
2005-08-24 14:09 ` bonzini at gcc dot gnu dot org
@ 2005-08-24 14:34 ` bonzini at gcc dot gnu dot org
2005-08-25 7:05 ` cvs-commit at gcc dot gnu dot org
` (4 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: bonzini at gcc dot gnu dot org @ 2005-08-24 14:34 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From bonzini at gcc dot gnu dot org 2005-08-24 14:08 -------
It's not handling VCE of an integer constant (or a real constant too, for that
matter).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (6 preceding siblings ...)
2005-08-24 14:34 ` bonzini at gcc dot gnu dot org
@ 2005-08-25 7:05 ` cvs-commit at gcc dot gnu dot org
2005-08-25 7:39 ` cvs-commit at gcc dot gnu dot org
` (3 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-08-25 7:05 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-08-25 06:40 -------
Subject: Bug 23546
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: bonzini@gcc.gnu.org 2005-08-25 06:40:14
Modified files:
gcc : ChangeLog tree-ssa-loop-im.c
Log message:
2005-08-24 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/23546
* tree-ssa-loop-im.c (for_each_index): Handle INTEGER_CST
and REAL_CST nodes.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9821&r2=2.9822
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-im.c.diff?cvsroot=gcc&r1=2.50&r2=2.51
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (7 preceding siblings ...)
2005-08-25 7:05 ` cvs-commit at gcc dot gnu dot org
@ 2005-08-25 7:39 ` cvs-commit at gcc dot gnu dot org
2005-08-25 8:26 ` cvs-commit at gcc dot gnu dot org
` (2 subsequent siblings)
11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-08-25 7:39 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-08-25 07:05 -------
Subject: Bug 23546
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: bonzini@gcc.gnu.org 2005-08-25 07:03:00
Modified files:
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg/tree-ssa: pr23546.c
Log message:
2005-08-24 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/23546
* gcc.dg/tree-ssa/pr23546.c: New test.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5957&r2=1.5958
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr23546.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (8 preceding siblings ...)
2005-08-25 7:39 ` cvs-commit at gcc dot gnu dot org
@ 2005-08-25 8:26 ` cvs-commit at gcc dot gnu dot org
2005-08-25 11:27 ` pinskia at gcc dot gnu dot org
2005-08-26 10:49 ` ma1flfs at bath dot ac dot uk
11 siblings, 0 replies; 13+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2005-08-25 8:26 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-08-25 07:38 -------
Subject: Bug 23546
CVSROOT: /cvs/gcc
Module name: gcc
Branch: gcc-4_0-branch
Changes by: bonzini@gcc.gnu.org 2005-08-25 07:37:22
Modified files:
gcc : ChangeLog tree-ssa-loop-im.c
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg/tree-ssa: pr23546.c
Log message:
gcc:
2005-08-24 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/23546
* tree-ssa-loop-im.c (for_each_index): Handle INTEGER_CST
and REAL_CST nodes.
gcc/testsuite:
2005-08-24 Paolo Bonzini <bonzini@gnu.org>
PR tree-optimization/23546
* gcc.dg/tree-ssa/pr23546.c: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.7592.2.389&r2=2.7592.2.390
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-im.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=2.28.2.2&r2=2.28.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=1.5084.2.347&r2=1.5084.2.348
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr23546.c.diff?cvsroot=gcc&only_with_tag=gcc-4_0-branch&r1=NONE&r2=1.1.2.1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (9 preceding siblings ...)
2005-08-25 8:26 ` cvs-commit at gcc dot gnu dot org
@ 2005-08-25 11:27 ` pinskia at gcc dot gnu dot org
2005-08-26 10:49 ` ma1flfs at bath dot ac dot uk
11 siblings, 0 replies; 13+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-08-25 11:27 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-08-25 11:25 -------
Fixed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
* [Bug tree-optimization/23546] [4.0/4.1 Regression] ICE in for_each_index, at tree-ssa-loop-im.c:202
2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
` (10 preceding siblings ...)
2005-08-25 11:27 ` pinskia at gcc dot gnu dot org
@ 2005-08-26 10:49 ` ma1flfs at bath dot ac dot uk
11 siblings, 0 replies; 13+ messages in thread
From: ma1flfs at bath dot ac dot uk @ 2005-08-26 10:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From ma1flfs at bath dot ac dot uk 2005-08-26 10:27 -------
Thank you very much for fixing this so quickly!
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23546
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2005-08-26 10:28 UTC | newest]
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2005-08-24 11:58 [Bug tree-optimization/23546] New: ICE in for_each_index, at tree-ssa-loop-im.c:202 ma1flfs at bath dot ac dot uk
2005-08-24 12:04 ` [Bug tree-optimization/23546] " ma1flfs at bath dot ac dot uk
2005-08-24 12:31 ` [Bug tree-optimization/23546] [4.0/4.1 Regression] " pinskia at gcc dot gnu dot org
2005-08-24 12:41 ` pinskia at gcc dot gnu dot org
2005-08-24 12:57 ` pinskia at gcc dot gnu dot org
2005-08-24 13:58 ` bonzini at gcc dot gnu dot org
2005-08-24 14:09 ` bonzini at gcc dot gnu dot org
2005-08-24 14:34 ` bonzini at gcc dot gnu dot org
2005-08-25 7:05 ` cvs-commit at gcc dot gnu dot org
2005-08-25 7:39 ` cvs-commit at gcc dot gnu dot org
2005-08-25 8:26 ` cvs-commit at gcc dot gnu dot org
2005-08-25 11:27 ` pinskia at gcc dot gnu dot org
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