[llvm] [X86] Support EGPR (R16-R31) for APX (PR #67702)

[Shengchen Kan via llvm-commits]

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@@ -0,0 +1,81 @@
+; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+sse2,+ssse3,+egpr  | FileCheck %s --check-prefix=SSE
+; RUN: llc < %s -mtriple=x86_64-unknown -stop-after=x86-isel -mattr=+sse2,+ssse3,+egpr,+avx | FileCheck %s --check-prefix=AVX
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KanRobert wrote:

The API `getRegClass` is shared by all ISEL. I think there is no need to add standalone tests for fast isel.

https://github.com/llvm/llvm-project/pull/67702