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* [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
@ 2007-10-13 19:49 vapier at gentoo dot org
2007-10-13 19:52 ` [Bug c/33766] " vapier at gentoo dot org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: vapier at gentoo dot org @ 2007-10-13 19:49 UTC (permalink / raw)
To: gcc-bugs
building xorg-server with -O1 -ftree-loop-linear on x86 fails with:
texcompress_fxt1.c: In function 'fxt1_encode':
texcompress_fxt1.c:1376: internal compiler error: in bsi_for_stmt, at
tree-cfg.c:2827
Please submit a full bug report, with preprocessed source if appropriate.
tested with 4.0.4, 4.1.2, 4.2.2, and a semi-recent snapshot (20070916)
--
Summary: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-
cfg.c when using -O1 -ftree-loop-linear
Product: gcc
Version: 4.1.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vapier at gentoo dot org
GCC target triplet: i686-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
@ 2007-10-13 19:52 ` vapier at gentoo dot org
2007-10-14 10:22 ` [Bug tree-optimization/33766] " rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: vapier at gentoo dot org @ 2007-10-13 19:52 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from vapier at gentoo dot org 2007-10-13 19:52 -------
bugzilla seems to be droppin a brick when i try to attach files, so here's the
reduced test case i've been testing with:
fxt1_quantize_ALPHA1()
{
int j1;
int i;
float *tv;
for (j1 = 1; j1; j1++) {
float e;
for (i = 1; i; i++)
e = tv[i];
if (e)
i = j1;
}
return tv[i];
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
2007-10-13 19:52 ` [Bug c/33766] " vapier at gentoo dot org
@ 2007-10-14 10:22 ` rguenth at gcc dot gnu dot org
2007-10-14 14:20 ` spop at gcc dot gnu dot org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2007-10-14 10:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2007-10-14 10:22 -------
This is likely a duplicate of PR24309 or PR23820.
./cc1 -quiet -O -ftree-loop-linear t.i
t.i: In function 'fxt1_quantize_ALPHA1':
t.i:2: internal compiler error: in lambda_loopnest_to_gcc_loopnest, at
lambda-code.c:1840
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |spop at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Component|c |tree-optimization
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-10-14 10:22:41
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
2007-10-13 19:52 ` [Bug c/33766] " vapier at gentoo dot org
2007-10-14 10:22 ` [Bug tree-optimization/33766] " rguenth at gcc dot gnu dot org
@ 2007-10-14 14:20 ` spop at gcc dot gnu dot org
2007-10-19 19:02 ` spop at gcc dot gnu dot org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-10-14 14:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from spop at gcc dot gnu dot org 2007-10-14 14:20 -------
Subject: Re: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when
using -O1 -ftree-loop-linear
I verified that this bug is also fixed by this patch:
http://gcc.gnu.org/ml/gcc-patches/2007-10/msg00798.html
I added the testcase of this PR to the testsuite.
Sebastian
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
` (2 preceding siblings ...)
2007-10-14 14:20 ` spop at gcc dot gnu dot org
@ 2007-10-19 19:02 ` spop at gcc dot gnu dot org
2007-10-19 19:04 ` spop at gcc dot gnu dot org
2007-11-19 5:43 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-10-19 19:02 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from spop at gcc dot gnu dot org 2007-10-19 19:02 -------
Subject: Bug 33766
Author: spop
Date: Fri Oct 19 19:01:58 2007
New Revision: 129494
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=129494
Log:
2007-10-19 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/23820
PR tree-optimization/24309
PR tree-optimization/33766
* testsuite/gcc.dg/tree-ssa/pr23820.c: New.
* testsuite/gcc.dg/tree-ssa/pr24309.c: New.
* testsuite/gcc.dg/tree-ssa/pr33766.c: New.
* testsuite/gcc.dg/tree-ssa/ltrans-3.c: XFAILed.
* tree-loop-linear.c (perfect_loop_nest_depth): New.
(linear_transform_loops): Use perfect_loop_nest_depth.
* lambda-code.c (perfect_nest_p): Outer loops in perfect nests
should have a single condition: their exit.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr23820.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr24309.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr33766.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/lambda-code.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ltrans-3.c
trunk/gcc/tree-loop-linear.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
` (3 preceding siblings ...)
2007-10-19 19:02 ` spop at gcc dot gnu dot org
@ 2007-10-19 19:04 ` spop at gcc dot gnu dot org
2007-11-19 5:43 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: spop at gcc dot gnu dot org @ 2007-10-19 19:04 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from spop at gcc dot gnu dot org 2007-10-19 19:03 -------
Fixed.
--
spop at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/33766] [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear
2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
` (4 preceding siblings ...)
2007-10-19 19:04 ` spop at gcc dot gnu dot org
@ 2007-11-19 5:43 ` pinskia at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-11-19 5:43 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33766
^ permalink raw reply [flat|nested] 7+ messages in thread
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2007-10-13 19:49 [Bug c/33766] New: [4.1/4.2/4.3 Regression] ICE in bsi_for_stmt at tree-cfg.c when using -O1 -ftree-loop-linear vapier at gentoo dot org
2007-10-13 19:52 ` [Bug c/33766] " vapier at gentoo dot org
2007-10-14 10:22 ` [Bug tree-optimization/33766] " rguenth at gcc dot gnu dot org
2007-10-14 14:20 ` spop at gcc dot gnu dot org
2007-10-19 19:02 ` spop at gcc dot gnu dot org
2007-10-19 19:04 ` spop at gcc dot gnu dot org
2007-11-19 5:43 ` pinskia at gcc dot gnu dot org
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