[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 --- Comment #8 from Richard Biener --- Author: rguenth Date: Wed Apr 6 10:31:27 2016 New Revision: 234776 URL: https://gcc.gnu.org/viewcvs?rev=234776=gcc=rev Log: 2016-04-06 Richard Biener Backport from mainline

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 Jakub Jelinek changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 --- Comment #6 from Jakub Jelinek --- Author: jakub Date: Fri Mar 11 12:28:50 2016 New Revision: 234140 URL: https://gcc.gnu.org/viewcvs?rev=234140=gcc=rev Log: PR tree-optimization/70177 * gimple-expr.h

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 --- Comment #5 from Jakub Jelinek --- Created attachment 37933 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37933=edit gcc6-pr70177.patch Untested fix. The questions about latent issues, where the upper bound expression comes from and

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 Richard Biener changed: What|Removed |Added Blocks||68963 --- Comment #4 from Richard

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 --- Comment #3 from Jakub Jelinek --- Perhaps better testcase (-O2 again): int b[128]; void foo (int i, int j) { int c, f, g, h; for (g = 0; g < 64; g++) for (h = g, f = 0; f <= i; f++, h++) for (c = 0; c < j; c++) b[h] =

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 --- Comment #2 from Jakub Jelinek --- Though, that expression looks weird, on the testcase it is clear that if i is >= 0 (not -1!), then c must be 0, because otherwise the innermost loop must invoke undefined behavior, and deriving anything

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 Jakub Jelinek changed: What|Removed |Added Keywords||ice-on-valid-code

[Bug tree-optimization/70177] [6 Regression] ICE in extract_ops_from_tree starting with r233660

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70177 Jakub Jelinek changed: What|Removed |Added Priority|P3 |P1