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From: "zhendong.su at inf dot ethz.ch" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/102769] wrong code at -O1 and above on x86_64-linux-gnu Date: Fri, 15 Oct 2021 10:19:02 +0000 [thread overview] Message-ID: <bug-102769-4-hu22OudiG7@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-102769-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 --- Comment #2 from Zhendong Su <zhendong.su at inf dot ethz.ch> --- Interesting --- it was missed by clang-10 sanitizers and the CompCert interpreter (a pretty rare occurrence): [565] % ccomp -interp -fall small.c small.c:13: warning: implicit declaration of function '__builtin_abort' is invalid in C99 [-Wimplicit-function-declaration] small.c:13: warning: '__builtin_abort' is declared without a function prototype Time 114: program terminated (exit code = 0) [566] % clang-10 -Xclang -disable-llvm-optzns -w -m64 -O0 -fwrapv -ftrapv -fsanitize=undefined,address small.c; ./a.out [567] % clang-10 -pie -fPIE -pie -Xclang -disable-llvm-optzns -w -O0 -m64 -fsanitize=memory small.c; ./a.out [568] %
next prev parent reply other threads:[~2021-10-15 10:19 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-15 9:36 [Bug tree-optimization/102769] New: " zhendong.su at inf dot ethz.ch 2021-10-15 9:47 ` [Bug tree-optimization/102769] " marxin at gcc dot gnu.org 2021-10-15 10:19 ` zhendong.su at inf dot ethz.ch [this message] 2021-10-15 10:23 ` jakub at gcc dot gnu.org 2021-10-15 10:23 ` marxin at gcc dot gnu.org 2021-10-15 10:28 ` zhendong.su at inf dot ethz.ch 2021-10-15 10:33 ` marxin at gcc dot gnu.org 2021-10-15 10:38 ` zhendong.su at inf dot ethz.ch 2021-10-15 10:43 ` marxin at gcc dot gnu.org 2021-10-15 11:39 ` zhendong.su at inf dot ethz.ch 2021-10-15 11:42 ` jakub at gcc dot gnu.org 2021-10-15 15:17 ` zhendong.su at inf dot ethz.ch
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