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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/98513] [10/11 Regression] Wrong code with -O3 since r10-2804-gbf05a3bbb58b3558 Date: Tue, 05 Jan 2021 16:40:07 +0000 [thread overview] Message-ID: <bug-98513-4-VViSIcLNg9@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-98513-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98513 --- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> --- void __attribute__((noipa)) foo (int x, int minus_1) { int tem = minus_1; tem = tem + 2; if ((unsigned)x + 2147483647 >= 2) { if (x <= tem) { if (x > 5) __builtin_exit (0); } } } int main() { foo (10, 100); __builtin_abort (); } fails with -O2 -fdisable-tree-ccp1 -fdisable-tree-forwprop1 -fdisable-tree-fre1 I'll turn it into a GIMPLE FE unit testcase for EVRP tomorrow. Interestingly the intersect with [-INF, minus_1_29(D) + 1] works fine (x < tem vs. x <= tem).
next prev parent reply other threads:[~2021-01-05 16:40 UTC|newest] Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-04 15:21 [Bug tree-optimization/98513] New: " marxin at gcc dot gnu.org 2021-01-04 15:21 ` [Bug tree-optimization/98513] " marxin at gcc dot gnu.org 2021-01-04 15:41 ` marxin at gcc dot gnu.org 2021-01-04 16:24 ` marxin at gcc dot gnu.org 2021-01-04 16:33 ` marxin at gcc dot gnu.org 2021-01-05 9:21 ` marxin at gcc dot gnu.org 2021-01-05 9:24 ` marxin at gcc dot gnu.org 2021-01-05 9:28 ` marxin at gcc dot gnu.org 2021-01-05 9:28 ` rguenth at gcc dot gnu.org 2021-01-05 15:55 ` amacleod at redhat dot com 2021-01-05 16:04 ` rguenth at gcc dot gnu.org 2021-01-05 16:40 ` rguenth at gcc dot gnu.org [this message] 2021-01-06 8:02 ` rguenth at gcc dot gnu.org 2021-01-06 8:26 ` rguenth at gcc dot gnu.org 2021-01-06 9:21 ` cvs-commit at gcc dot gnu.org 2021-01-06 9:33 ` [Bug tree-optimization/98513] [10 " marxin at gcc dot gnu.org 2021-01-12 15:23 ` cvs-commit at gcc dot gnu.org 2021-01-12 15:26 ` rguenth at gcc dot gnu.org 2021-10-06 22:34 ` pinskia at gcc dot gnu.org
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