https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111738
--- Comment #3 from Anonymous <iamanonymous.cs at gmail dot com> --- (In reply to Richard Biener from comment #1) > I can't reproduce. Your git version is quite old, it translates to > r14-2634-g85da0b40538fb0 for me. It doesn't reproduce with r14-2282 either > though. > > Current is r14-4486-g873586ebc565b6 Hi, Richard. According to your suggestion, we have updated our gcc to the latest trunk as: $ gcc -v Using built-in specs. COLLECT_GCC=/root/gcc_set/202310092007/bin/gcc COLLECT_LTO_WRAPPER=/root/gcc_set/202310092007/libexec/gcc/x86_64-pc-linux-gnu/14.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../gcc/configure --prefix=/root/gcc_set/202310092007 --with-gmp=/root/build_essential --with-mpfr=/root/build_essential --with-mpc=/root/build_essential --enable-languages=c,c++ --disable-multilib Thread model: posix Supported LTO compression algorithms: zlib gcc version 14.0.0 20231009 (experimental) (GCC) git version: dee55cf59ceea989f47e7605205c6644b27a1f78 Then, we compiled the same test program with/without PGO enabled and found that the results are inconsistent as: $ gcc -O3 -w -fprofile-generate=profile a.c -o a.out $ ./a.out 4 $ gcc -O3 -w -fprofile-use=profile -Wno-missing-profile -fprofile-correction a.c -o a.out $ ./a.out 32765
