hjl.tools added a comment. In https://reviews.llvm.org/D53919#1282748, @efriedma wrote:
> The ABI document before AVX was introduced didn't say anything at all about > 256-bit vectors. So we're talking about compatibility with some other > compiler. Which compiler? X86-64 compilers created before AVX was introduced. Say clang 1.0 doesn't know AVX and returns it in memory. So should clang 7.0 with -mno-avx. Repository: rC Clang https://reviews.llvm.org/D53919 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
