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* [Bug c/97496] New: ice during during GIMPLE pass: cddce
@ 2020-10-19 16:09 dcb314 at hotmail dot com
2020-10-19 16:15 ` [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 marxin at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: dcb314 at hotmail dot com @ 2020-10-19 16:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496
Bug ID: 97496
Summary: ice during during GIMPLE pass: cddce
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C code:
int a;
int b[];
void c(unsigned g) {
if (a) {
long e = g, d = e;
int f = 0;
for (; f < 4; f++) {
b[f] = d;
d >>= 8;
}
}
}
with compiler flag -O3, does this:
during GIMPLE pass: cddce
bug657.c: In function ‘c’:
bug657.c:3:6: internal compiler error: in mark_operand_necessary, at
tree-ssa-dce.c:173
3 | void c(unsigned g) {
| ^
0x5e63bd mark_operand_necessary
../../trunk.git/gcc/tree-ssa-dce.c:173
0x5e63bd propagate_necessity
../../trunk.git/gcc/tree-ssa-dce.c:775
The problem first seems to occur sometime between 20201016 and 20201017.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 2020-10-19 16:09 [Bug c/97496] New: ice during during GIMPLE pass: cddce dcb314 at hotmail dot com @ 2020-10-19 16:15 ` marxin at gcc dot gnu.org 2020-10-19 16:15 ` marxin at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: marxin at gcc dot gnu.org @ 2020-10-19 16:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496 Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Status|UNCONFIRMED |NEW Last reconfirmed| |2020-10-19 CC| |marxin at gcc dot gnu.org, | |rguenth at gcc dot gnu.org Priority|P3 |P1 Known to fail| |11.0 Target Milestone|--- |11.0 Keywords| |ice-on-valid-code Component|c |tree-optimization Known to work| |10.2.0 Summary|ice during during GIMPLE |[11 Regression] during |pass: cddce |during GIMPLE pass: cddce | |since | |r11-4005-g6c6e0cafa38cee83 --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- Started with Richi's r11-4005-g6c6e0cafa38cee83. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 2020-10-19 16:09 [Bug c/97496] New: ice during during GIMPLE pass: cddce dcb314 at hotmail dot com 2020-10-19 16:15 ` [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 marxin at gcc dot gnu.org @ 2020-10-19 16:15 ` marxin at gcc dot gnu.org 2020-10-20 6:00 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: marxin at gcc dot gnu.org @ 2020-10-19 16:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496 --- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- for SSA_NAME: vect__16.4_34 in statement: # .MEM_29 = VDEF <.MEM_7(D)> MEM <vector(4) int> [(int *)&b] = vect__16.4_34; during GIMPLE pass: slp dump file: pr97496.c.169t.slp1 pr97496.c:3:6: internal compiler error: verify_ssa failed vi 0xfcb522 verify_ssa(bool, bool) /home/marxin/Programming/gcc/gcc/tree-ssa.c:1208 0xcda455 execute_function_todo /home/marxin/Programming/gcc/gcc/passes.c:1999 0xcdb19c do_per_function /home/marxin/Programming/gcc/gcc/passes.c:1640 0xcdb19c execute_todo /home/marxin/Programming/gcc/gcc/passes.c:2046 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 2020-10-19 16:09 [Bug c/97496] New: ice during during GIMPLE pass: cddce dcb314 at hotmail dot com 2020-10-19 16:15 ` [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 marxin at gcc dot gnu.org 2020-10-19 16:15 ` marxin at gcc dot gnu.org @ 2020-10-20 6:00 ` rguenth at gcc dot gnu.org 2020-10-20 7:03 ` cvs-commit at gcc dot gnu.org 2020-10-20 7:03 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2020-10-20 6:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Mine. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 2020-10-19 16:09 [Bug c/97496] New: ice during during GIMPLE pass: cddce dcb314 at hotmail dot com ` (2 preceding siblings ...) 2020-10-20 6:00 ` rguenth at gcc dot gnu.org @ 2020-10-20 7:03 ` cvs-commit at gcc dot gnu.org 2020-10-20 7:03 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2020-10-20 7:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496 --- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>: https://gcc.gnu.org/g:a335f6f4ee5cb4f7dbfef52e17bf854ae42c1216 commit r11-4084-ga335f6f4ee5cb4f7dbfef52e17bf854ae42c1216 Author: Richard Biener <rguenther@suse.de> Date: Tue Oct 20 08:14:54 2020 +0200 tree-optimization/97496 - avoid SLP externs in patterns I forgot to guard the promotion to external for the case where the def is in a pattern. 2020-10-20 Richard Biener <rguenther@suse.de> PR tree-optimization/97496 * tree-vect-slp.c (vect_get_and_check_slp_defs): Guard extern promotion with not in pattern. * gcc.dg/vect/bb-slp-pr97496.c: New testcase. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 2020-10-19 16:09 [Bug c/97496] New: ice during during GIMPLE pass: cddce dcb314 at hotmail dot com ` (3 preceding siblings ...) 2020-10-20 7:03 ` cvs-commit at gcc dot gnu.org @ 2020-10-20 7:03 ` rguenth at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rguenth at gcc dot gnu.org @ 2020-10-20 7:03 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97496 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-10-20 7:03 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-10-19 16:09 [Bug c/97496] New: ice during during GIMPLE pass: cddce dcb314 at hotmail dot com 2020-10-19 16:15 ` [Bug tree-optimization/97496] [11 Regression] during during GIMPLE pass: cddce since r11-4005-g6c6e0cafa38cee83 marxin at gcc dot gnu.org 2020-10-19 16:15 ` marxin at gcc dot gnu.org 2020-10-20 6:00 ` rguenth at gcc dot gnu.org 2020-10-20 7:03 ` cvs-commit at gcc dot gnu.org 2020-10-20 7:03 ` rguenth at gcc dot gnu.org
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