https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113059
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- $ /opt/notnfs/gcc-bisect/obj/gcc/cc1.r14-6209 -quiet -nostdinc -O3 -m32 -march=znver2 -ggdb3 hc2cf2_16.i -o hc2cf2_16.s1 $ /opt/notnfs/gcc-bisect/obj/gcc/cc1.r14-6210 -quiet -nostdinc -O3 -m32 -march=znver2 -ggdb3 hc2cf2_16.i -o hc2cf2_16.s2 $ gcc -c -o /tmp/hc2cf2_16.o -xassembler /tmp/hc2cf2_16.s1 -m32 $ gcc -O3 -m32 -march=znver2 -ggdb3 -o bench2 bench-bench.o bench-hook.o bench-fftw-bench.o /tmp/hc2cf2_16.o ../.libs/libfftw3.a ../libbench2/libbench2.a -lm; ./bench2 --verbose=1 --verify 'obc3x13' --verify 'ibc3x13' --verify '//ifr4752' obc3x13 2.86313e-16 2.84445e-16 7.6393e-16 ibc3x13 2.55967e-16 2.84445e-16 7.42983e-16 //ifr4752 2.74708e-16 1.85534e-15 9.24976e-16 $ gcc -c -o /tmp/hc2cf2_16.o -xassembler /tmp/hc2cf2_16.s2 -m32 $ gcc -O3 -m32 -march=znver2 -ggdb3 -o bench2 bench-bench.o bench-hook.o bench-fftw-bench.o /tmp/hc2cf2_16.o ../.libs/libfftw3.a ../libbench2/libbench2.a -lm; ./bench2 --verbose=1 --verify 'obc3x13' --verify 'ibc3x13' --verify '//ifr4752' obc3x13 2.86313e-16 2.84445e-16 7.6393e-16 ibc3x13 2.55967e-16 2.84445e-16 7.42983e-16 corrupted size vs. prev_size Aborted (core dumped)