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* [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation
@ 2015-03-13 13:32 jakub at gcc dot gnu.org
2015-03-13 13:32 ` [Bug tree-optimization/65418] " jakub at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-03-13 13:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65418
Bug ID: 65418
Summary: [5 Regression] vim miscompilation
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: jakub at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
__attribute__((noinline, noclone)) int
foo (int x)
{
if (x == '(' - 256 || x == '|' - 256 || x == '&' - 256 || x == 'n' - 256)
return 1;
return 0;
}
int
main ()
{
if (foo ('n' - 256) != 1
|| foo ('(' - 256) != 1
|| foo ('|' - 256) != 1
|| foo ('&' - 256) != 1
|| foo ('q' - 256) != 0)
__builtin_abort ();
return 0;
}
is miscompiled at -O2 starting with r216393.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/65418] [5 Regression] vim miscompilation 2015-03-13 13:32 [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation jakub at gcc dot gnu.org @ 2015-03-13 13:32 ` jakub at gcc dot gnu.org 2015-03-13 13:33 ` jakub at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2015-03-13 13:32 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65418 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2015-03-13 Ever confirmed|0 |1 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/65418] [5 Regression] vim miscompilation 2015-03-13 13:32 [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation jakub at gcc dot gnu.org 2015-03-13 13:32 ` [Bug tree-optimization/65418] " jakub at gcc dot gnu.org @ 2015-03-13 13:33 ` jakub at gcc dot gnu.org 2015-03-13 15:59 ` jakub at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2015-03-13 13:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65418 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P3 |P1 Target Milestone|--- |5.0 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/65418] [5 Regression] vim miscompilation 2015-03-13 13:32 [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation jakub at gcc dot gnu.org 2015-03-13 13:32 ` [Bug tree-optimization/65418] " jakub at gcc dot gnu.org 2015-03-13 13:33 ` jakub at gcc dot gnu.org @ 2015-03-13 15:59 ` jakub at gcc dot gnu.org 2015-03-14 9:56 ` jakub at gcc dot gnu.org 2015-03-14 9:57 ` jakub at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2015-03-13 15:59 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65418 --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 35028 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35028&action=edit gcc5-pr65418.patch Untested fix. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/65418] [5 Regression] vim miscompilation 2015-03-13 13:32 [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation jakub at gcc dot gnu.org ` (2 preceding siblings ...) 2015-03-13 15:59 ` jakub at gcc dot gnu.org @ 2015-03-14 9:56 ` jakub at gcc dot gnu.org 2015-03-14 9:57 ` jakub at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2015-03-14 9:56 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65418 --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Sat Mar 14 09:55:41 2015 New Revision: 221434 URL: https://gcc.gnu.org/viewcvs?rev=221434&root=gcc&view=rev Log: PR tree-optimization/65418 * tree-ssa-reassoc.c (extract_bit_test_mask): If there are casts in the first PLUS_EXPR operand, ensure tbias and *totallowp are in the inner type. * gcc.c-torture/execute/pr65418-1.c: New test. * gcc.c-torture/execute/pr65418-2.c: New test. Added: trunk/gcc/testsuite/gcc.c-torture/execute/pr65418-1.c trunk/gcc/testsuite/gcc.c-torture/execute/pr65418-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-reassoc.c ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/65418] [5 Regression] vim miscompilation 2015-03-13 13:32 [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation jakub at gcc dot gnu.org ` (3 preceding siblings ...) 2015-03-14 9:56 ` jakub at gcc dot gnu.org @ 2015-03-14 9:57 ` jakub at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jakub at gcc dot gnu.org @ 2015-03-14 9:57 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65418 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-03-14 9:57 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-03-13 13:32 [Bug tree-optimization/65418] New: [5 Regression] vim miscompilation jakub at gcc dot gnu.org 2015-03-13 13:32 ` [Bug tree-optimization/65418] " jakub at gcc dot gnu.org 2015-03-13 13:33 ` jakub at gcc dot gnu.org 2015-03-13 15:59 ` jakub at gcc dot gnu.org 2015-03-14 9:56 ` jakub at gcc dot gnu.org 2015-03-14 9:57 ` jakub at gcc dot gnu.org
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