[msan] Fix bugs when instrumenting x86.avx512*_cvt* intrinsics#84
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nikic merged 1 commit intorust-lang:rustc/11.0-2020-10-12from Nov 27, 2020
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Scalar intrinsics x86.avx512*_cvt* have an extra rounding mode operand. We can directly ignore it to reuse the SSE/AVX math. This fix the bug https://bugs.llvm.org/show_bug.cgi?id=48298. Reviewed By: craig.topper Differential Revision: https://reviews.llvm.org/D92206
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Update LLVM submodule * [[msan] Fix bugs when instrumenting x86.avx512*_cvt* intrinsics](rust-lang/llvm-project#84) * [[X86][AVX512] Only lower to VPALIGNR if we have BWI (PR48322)](rust-lang/llvm-project#85)
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84: Improve unimplemented stuff and serialise instruction types. r=ltratt a=vext01 Co-authored-by: Edd Barrett <vext01@gmail.com>
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Cherry pick https://reviews.llvm.org/D92206
This addresses rust-lang/stdarch#957 (for
_mm_cvt_roundss_u32but not for_mm512_shuffle_ps).A test is at rust-lang/rust#79382.
This can also be tested with an unpatched rustc, with the following command: