[PATCH] D26114: [AMDGPU] Allow hoisting of comparisons out of a loop and eliminate condition copies

[Stanislav Mekhanoshin via llvm-commits]

rampitec updated this revision to Diff 79012.
rampitec added a comment.

Added cleanup of logical operations with exec mask introduced in SILowerI1Copies. Inserted S_AND_B64 will be combined with another S_AND_B64 produced by lowering of SI_IF/SI_ELSE to finally form a single S_ANDSAVEXEC_B64.


Repository:
  rL LLVM

https://reviews.llvm.org/D26114

Files:
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/SILowerControlFlow.cpp
  lib/Target/AMDGPU/SILowerI1Copies.cpp
  test/CodeGen/AMDGPU/branch-relaxation.ll
  test/CodeGen/AMDGPU/hoist-cond.ll

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