[PATCH] D52978: [TargetLowering][RISCV] Introduce isSExtCheaperThanZExt hook and implement for RISC-V

[Alex Bradbury via Phabricator via llvm-commits]

asb updated this revision to Diff 169521.
asb marked 2 inline comments as done.
asb added a comment.

Update to address review comments (thanks!).


https://reviews.llvm.org/D52978

Files:
  include/llvm/CodeGen/TargetLowering.h
  lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
  lib/CodeGen/SelectionDAG/LegalizeTypes.h
  lib/Target/RISCV/RISCVISelLowering.cpp
  lib/Target/RISCV/RISCVISelLowering.h
  test/CodeGen/RISCV/alu32.ll

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