[PATCH] D156077: [AMDGPU] Perform basic folds on llvm.amdgcn.wave.reduce.umin/umax.

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp:1144
+    // Propagate poison and constant value
+    if (isa<PoisonValue>(Src) || isa<Constant>(Src))
+      return IC.replaceInstUsesWith(II, Src);
----------------
isa<Constant> covers isa<Poison>


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D156077/new/

https://reviews.llvm.org/D156077