On 26/04/2023 00:22, Jaroslav Skarvada wrote:
Hi,building with the -mno-ssse3 causes build failure, e.g.: CFLAGS="-O2 -march=bonnell -mtune=bonnell -mno-ssse3" ... gcc -I. -I./lib -Ilib -I./lib -Isrc -I./src -mavx -mpclmul -O2 -march=bonnell -mtune=bonnell -mno-ssse3 -c -o src/libcksum_pclmul_a-cksum_pclmul.o `test -f 'src/cksum_pclmul.c' || echo './'`src/cksum_pclmul.c In file included from /usr/lib/gcc/i686-pc-linux-gnu/12/include/immintrin.h:37, from /usr/lib/gcc/i686-pc-linux-gnu/12/include/x86intrin.h:32, from src/cksum_pclmul.c:22: /usr/lib/gcc/i686-pc-linux-gnu/12/include/tmmintrin.h: In function 'cksum_pclmul': /usr/lib/gcc/i686-pc-linux-gnu/12/include/tmmintrin.h:136:1: error: inlining failed in call to 'always_inline' '_mm_shuffle_epi8': target specific option mismatch 136 | _mm_shuffle_epi8 (__m128i __X, __m128i __Y) | ^~~~~~~~~~~~~~~~ src/cksum_pclmul.c:103:19: note: called from here 103 | data7 = _mm_shuffle_epi8 (data7, shuffle_constant); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/lib/gcc/i686-pc-linux-gnu/12/include/tmmintrin.h:136:1: error: inlining failed in call to 'always_inline' '_mm_shuffle_epi8': target specific option mismatch The problem is in the pclmul optimization. The configure.ac autodetect script checks for the pclmul, but not for the ssse3 instructions which are later utilized in the pclmul optimized code. Unfortunately, it also seems there is no way to override the configure.ac check result (e.g. by the ./configure --without-pclmul option). The attached patch added the ssse3 detection and fixed the problem for me. Maybe it would be better to split it into two checks - pclmul and ssse3, but I didn't want to complicate it. The patch was initially created for coreutils-9.1 where the problem initially manifested, but it also applies to coreutils-9.3 which is also affected
Pushed. Marking this as done. thanks! Pádraig
