[llvm] [X86] Prefer VPMOVMSKB for nonnegative byte comparison masks (PR #216884)

[Oscar Priego via llvm-commits]

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@@ -0,0 +1,81 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64-v3 | FileCheck %s --check-prefix=AVX2
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64-v4 | FileCheck %s --check-prefix=AVX512
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Opriego wrote:

Unified the x86-64-v3 and x86-64-v4 checks under the AVX prefix

https://github.com/llvm/llvm-project/pull/216884