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From: "stefansf at linux dot ibm.com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/99253] New: tree-vect-loop wrong code Date: Wed, 24 Feb 2021 17:02:01 +0000 [thread overview] Message-ID: <bug-99253-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99253 Bug ID: 99253 Summary: tree-vect-loop wrong code Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: wrong-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: stefansf at linux dot ibm.com Target Milestone: --- Target: s390x, x86_64-*-* int a = 0; static int b = 0; long c = 0; int main() { for (int d = 0; d < 8; d++) { a ^= c; b = a; a ^= 1; } if (b != 1) __builtin_abort(); return 0; } Aborts when built with: gcc -O3 t.c Bisection stops at commit 04bff1bbfc11a974342c0eb0c0d65d902e36e82e on IBM Z and at commit b7ff7cef5005721e78d6936bed3ae1c059b4e8d2 on x86 ¯\_(ツ)_/¯
next reply other threads:[~2021-02-24 17:02 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-02-24 17:02 stefansf at linux dot ibm.com [this message] 2021-02-25 8:02 ` [Bug tree-optimization/99253] [10/11 Regression] " rguenth at gcc dot gnu.org 2021-02-25 8:18 ` stefansf at linux dot ibm.com 2021-02-25 9:28 ` cvs-commit at gcc dot gnu.org 2021-02-25 9:30 ` [Bug tree-optimization/99253] [10 " rguenth at gcc dot gnu.org 2021-02-25 9:46 ` stefansf at linux dot ibm.com 2021-02-25 9:47 ` rguenth at gcc dot gnu.org 2021-03-16 14:02 ` cvs-commit at gcc dot gnu.org 2021-03-16 14:02 ` rguenth at gcc dot gnu.org
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