Bug 42860

Summary:	ICE in gcc-4.4.3 with graphite
Product:	gcc	Reporter:	ronis
Component:	middle-end	Assignee:	Not yet assigned to anyone <unassigned>
Status:	RESOLVED WONTFIX
Severity:	normal	CC:	gcc-bugs, scientica, spop
Priority:	P3
Version:	4.4.3
Target Milestone:	---
Host:	i686-linux-gnu	Target:	i686-linux-gnu
Build:	i686-linux-gnu	Known to work:	4.5.0
Known to fail:		Last reconfirmed:
Attachments:	Preprocessed source file causing the ICE

Description ronis 2010-01-25 03:13:51 UTC

I've just upgraded to 4.4.3 and tried a fresh build of mesa's git/master.  I get an ICE as:

/usr/bin/gcc -I../../include -march=native -msse2 -mfpmath=sse -O3 -ffast-math -funroll-loops -fomit-frame-pointer -floop-interchange -floop-strip-mine -floop-block -Wall -Wmissing-prototypes -std=c99 -ffast-math -fvisibility=hidden -fno-strict-aliasing  -fPIC  -DUSE_X86_ASM -DUSE_MMX_ASM -DUSE_3DNOW_ASM -DUSE_SSE_ASM -D_GNU_SOURCE -DPTHREADS -DHAVE_POSIX_MEMALIGN -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DGLX_INDIRECT_RENDERING -DHAVE_ALIAS  clip.c -L../../lib -lglut -lGLU -lGL  -lm -o clip
checker.c: In function 'main':
checker.c:129: internal compiler error: in expand_scalar_variables_expr, at graphite.c:4295
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
gmake[2]: *** [checker] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[2]: Leaving directory `/home/ronis/Project/notar/X/mesa/progs/redbook'

I recompiled with --save-temps and will upload the .i file.

Removing the -floop-interchange -floop-strip-mine -floop-block flags "fixes" the problem

Finally, I'm quite sure that I reported something similar to this in the past, and that it was supposedly fixed (I can't find it in bugzilla though).

Comment 1 ronis 2010-01-25 03:15:30 UTC

Created attachment 19701 [details]
Preprocessed source file causing the ICE

This is the first source file that triggers the ICE; there are others.

Comment 2 Sebastian Pop 2010-02-08 05:50:21 UTC

Works with trunk GCC 4.5 at rev. 156585.

Comment 3 Sebastian Pop 2010-03-17 15:13:13 UTC

*** Bug 43398 has been marked as a duplicate of this bug. ***

Comment 4 Sebastian Pop 2010-03-17 15:14:37 UTC

See PR43398 for a nicely reduced testcase.

Comment 5 Sebastian Pop 2011-02-02 16:23:27 UTC

I won't fix graphite in 4.4, please use GCC 4.5.