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From: "shaohua.li at inf dot ethz.ch" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c/110337] New: Wrong code at -O2/s on x86_64-linux-gnu Date: Wed, 21 Jun 2023 14:42:21 +0000 [thread overview] Message-ID: <bug-110337-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110337 Bug ID: 110337 Summary: Wrong code at -O2/s on x86_64-linux-gnu Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: shaohua.li at inf dot ethz.ch Target Milestone: --- This seems to be a recent regression on GCC -O2/s $ cat a.c int printf(const char *, ...); int a, e; static short b = 3, f; long c; char d; short g() { e = a; for (; a != 4;) return 39570 + d + b; return 0; } int main() { int h; f = g(); int i = f; h = i < 0 ? i : i >> 14; c = b && h; printf("%d\n", (int)c); } $ $ gcc-tk -O0 a.c && ./a.out 1 $ gcc-tk -O2 a.c && ./a.out -1 $
next reply other threads:[~2023-06-21 14:42 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-06-21 14:42 shaohua.li at inf dot ethz.ch [this message] 2023-06-21 22:51 ` [Bug c/110337] " pinskia at gcc dot gnu.org
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