https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127020
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> --- Created attachment 65398 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65398&action=edit A benchmark SSE2 version is slightly faster on Tigerlake: [hjl@gnu-tgl-3 pr127020]$ make /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -O2 -S x.c /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -O2 -S xor.c /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -O2 -c -o x.o x.c /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -O2 -Dfunc=sse2 -mtune=znver4 -c xor.c -o sse2.o /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -O2 -Dfunc=generic -c xor.c -o generic.o /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -g -O2 -o x x.o sse2.o generic.o [hjl@gnu-tgl-3 pr127020]$ ./x 0x124f7f201491d82536b810: 901890 0x124f7f201491d82536b810: 817538 [hjl@gnu-tgl-3 pr127020]$
