https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110227
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |13.2 Last reconfirmed| |2023-06-12 Ever confirmed|0 |1 Summary|gcc generates invalid |[13/14 Regression] gcc |AVX-512 code |generates invalid AVX-512 | |code Status|UNCONFIRMED |NEW --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Semi-Reduced testcase: ``` #include <immintrin.h> void f() { __m256i mask = _mm256_set_epi32(0, 0, 0, 0, -1, -1, -1, -1); register __m256i reg asm("xmm16") = mask; asm(""::"v"(reg)); } ``` Most likely introduced by r13-2804-ga282f086ef26d9 .