[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 Jackie Rosen jackie.rosen at hushmail dot com changed: What|Removed |Added CC||jackie.rosen at hushmail dot com --- Comment #10 from Jackie Rosen jackie.rosen at hushmail dot com --- *** Bug 260998 has been marked as a duplicate of this bug. *** Seen from the domain http://volichat.com Marked for reference. Resolved as fixed @bugzilla.
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639
--- Comment #5 from Vincent Lefèvre vincent-gcc at vinc17 dot net 2012-04-24
13:22:08 UTC ---
Same problem here under Debian/unstable (x86_64), with:
gcc-snapshot -O3 -march=native -std=gnu99 -c ice-setf.i
and the testcase below, using:
gcc (Debian 20120407-1) 4.8.0 20120407 (experimental) [trunk revision 186212]
Here's a simpler testcase:
// /usr/lib/gcc-snapshot/libexec/gcc/x86_64-linux-gnu/4.8.0/cc1 -fpreprocessed
ice-setf.i -march=corei7 -mcx16 -msahf -mno-movbe -mno-aes -mno-pclmul -mpopcnt
-mno-abm -mno-lwp -mno-fma -mno-fma4 -mno-xop -mno-bmi -mno-bmi2 -mno-tbm
-mno-avx -mno-avx2 -msse4.2 -msse4.1 -mno-lzcnt --param l1-cache-size=32
--param l1-cache-line-size=64 --param l2-cache-size=8192 -mtune=corei7 -quiet
-dumpbase ice-setf.i -auxbase ice-setf -O3 -std=gnu99 -o - -frandom-seed=0
# 1 ice-setf.i
int a(int *, unsigned long);
int g(unsigned long);
void r(int, long);
int foo(unsigned long sy, int *x, int i)
{
unsigned long sx = x[0];
if (sy = sx)
{
unsigned long p = sx * 64;
int m = 0;
int tmp = i ? g(sx) : a(m, sx);
r(tmp, p);
}
return 0;
}
The ICE is reproducible with -O3, but not with -O2. Also note that this is C,
not C++.
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 --- Comment #6 from Richard Guenther rguenth at gcc dot gnu.org 2012-04-24 14:04:42 UTC --- Supposedly fixed by 2012-04-10 Ulrich Weigand ulrich.weig...@linaro.org PR tree-optimization/52870 * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Verify that presumed pattern statement is within the same loop or basic block. meaning, I cannot reproduce it.
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 --- Comment #7 from dcb dcb314 at hotmail dot com 2012-04-24 18:08:53 UTC --- (In reply to comment #6) Supposedly fixed by 2012-04-10 Ulrich Weigand ulrich.weig...@linaro.org PR tree-optimization/52870 * tree-vect-patterns.c (vect_recog_widen_mult_pattern): Verify that presumed pattern statement is within the same loop or basic block. meaning, I cannot reproduce it. I checked and trunk 20120422 doesn't seem to have this bug. So it looks fixed to me. Suggest mark resolved.
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 --- Comment #8 from Vincent Lefèvre vincent-gcc at vinc17 dot net 2012-04-24 23:58:06 UTC --- I confirm that rebuilding gcc-snapshot with the patch http://gcc.gnu.org/viewcvs?view=revisionrevision=186272 for PR tree-optimization/52870 solves the problem. So, I think that this bug should be closed as a duplicate of bug 52870.
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|WAITING |RESOLVED Resolution||DUPLICATE --- Comment #9 from Paolo Carlini paolo.carlini at oracle dot com 2012-04-25 00:17:23 UTC --- *** This bug has been marked as a duplicate of bug 52870 ***
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 --- Comment #3 from dcb dcb314 at hotmail dot com 2012-04-03 19:29:11 UTC --- Created attachment 27079 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=27079 C++ source code
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 --- Comment #4 from dcb dcb314 at hotmail dot com 2012-04-03 19:31:58 UTC --- Finally, I managed to get delta to do something useful. Minimal test case attached.
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 Paolo Carlini paolo.carlini at oracle dot com changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed||2012-03-31 Ever Confirmed|0 |1 --- Comment #2 from Paolo Carlini paolo.carlini at oracle dot com 2012-03-31 23:17:45 UTC --- Please, do your best to reduce the size of the reproducer: http://gcc.gnu.org/wiki/A_guide_to_testcase_reduction
[Bug c++/52639] ice in supportable_widening_operation
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52639 dcb dcb314 at hotmail dot com changed: What|Removed |Added Component|c |c++ --- Comment #1 from dcb dcb314 at hotmail dot com 2012-03-20 18:50:21 UTC --- The source code is C++, not C. My mistake, sorry.
