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From: "nok.raven at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/100858] New: Simple common code hoisting is not performed Date: Tue, 01 Jun 2021 15:16:06 +0000 [thread overview] Message-ID: <bug-100858-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100858 Bug ID: 100858 Summary: Simple common code hoisting is not performed Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: missed-optimization Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: nok.raven at gmail dot com Target Milestone: --- void bar(); int foo(bool f) { if (f) { bar(); return 1; } else { bar(); return 2; } } ; GCC foo(bool): sub rsp, 8 test dil, dil je .L2 call bar() mov eax, 1 add rsp, 8 ret .L2: call bar() mov eax, 2 add rsp, 8 ret ; Clang foo(bool): push rbx mov ebx, edi call bar() mov eax, 2 sub eax, ebx pop rbx ret https://godbolt.org/z/j9eKG1dds
next reply other threads:[~2021-06-01 15:16 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-01 15:16 nok.raven at gmail dot com [this message] 2021-06-02 8:01 ` [Bug tree-optimization/100858] " rguenth at gcc dot gnu.org 2021-06-02 23:18 ` nok.raven at gmail dot com 2021-07-28 20:17 ` pinskia at gcc dot gnu.org
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