[PATCH] D17475: MachineCopyPropagation: Catch copies of the form A<-B; A<-B

[Matthias Braun via llvm-commits]

MatzeB updated this revision to Diff 48874.
MatzeB marked an inline comment as done.
MatzeB added a comment.
Herald added a reviewer: tstellarAMD.

Update revision which turns an assert in isNopCopy back to an if() and adjusts two AMDGPU testcases to the improved copy elimination.


Repository:
  rL LLVM

http://reviews.llvm.org/D17475

Files:
  lib/CodeGen/MachineCopyPropagation.cpp
  test/CodeGen/AMDGPU/llvm.AMDGPU.rsq.clamped.f64.ll
  test/CodeGen/AMDGPU/llvm.amdgcn.rsq.clamp.ll
  test/CodeGen/X86/machine-copy-prop.mir

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