[PATCH] D154818: [LoongArch] Add test case showing suboptimal codegen when loading unsigned char/short

[hev via Phabricator via llvm-commits]

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Implementing isZextFree will allow ld.bu or ld.hu to be selected rather than ld.b+mask and ld.h+mask.

Signed-off-by: WANG Rui <wangrui at loongson.cn>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D154818

Files:
  llvm/test/CodeGen/LoongArch/zext-with-load-is-free.ll

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