https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109173
Bug ID: 109173 Summary: incorrect intrinsic signature for _mm_srai_epi64 Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: malat at debian dot org Target Milestone: --- gcc-13 currently rejects the following: % /usr/lib/gcc-snapshot/bin/gcc -c -Wsign-conversion -Werror -mavx512vl -O2 tu.c tu.c: In function 'foo': tu.c:7:30: error: conversion to 'int' from 'unsigned int' may change the sign of the result [-Werror=sign-conversion] 7 | return _mm_srai_epi64(a, bar()); | ^~~~~ cc1: all warnings being treated as errors with: % cat tu.c #include <immintrin.h> extern unsigned int bar(); __m128i foo(__m128i a) { return _mm_srai_epi64(a, bar()); } intel documentation declares it as unsigned int * https://www.intel.com/content/www/us/en/docs/cpp-compiler/developer-guide-reference/2021-8/intrinsics-for-shift-operations.html [...] __m128i _mm_srai_epi64(__m128i a, unsigned int imm) [...] % /usr/lib/gcc-snapshot/bin/gcc --version gcc (Debian 20230315-1) 13.0.1 20230315 (experimental) [master r13-6680-ga9ae16db8cb]