[PATCH] D62263: [DAGCombine][X86][AArch64][AMDGPU] (x - y) + -1 -> add (xor y, -1), x fold

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri marked an inline comment as done.
lebedev.ri added inline comments.


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Comment at: test/CodeGen/AMDGPU/llvm.amdgcn.s.barrier.ll:6
 ; RUN: llc -march=amdgcn -mcpu=gfx900 -mattr=+auto-waitcnt-before-barrier -verify-machineinstrs < %s | FileCheck --check-prefixes=GCN,GFX9,VARIANT3 %s
 
 define amdgpu_kernel void @test_barrier(i32 addrspace(1)* %out, i32 %size) #0 {
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@arsenm I believe D62263 recovers from changes here, somewhat, PTAL.


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62263/new/

https://reviews.llvm.org/D62263