[PATCH] D116042: [AMDGPU][InstCombine] Remove zero LOD bias

Matt Arsenault via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Dec 20 07:55:58 PST 2021


arsenm added inline comments.


================
Comment at: llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp:4455
+                 m_GFCst(ConstantBias))) {
+      if (ConstantBias->isZero() || ConstantBias->isNegative()) {
+        // Set new opcode to _lz variant of _l, and change the intrinsic ID.
----------------
The DAG version doesn't have the isNegative check?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116042/new/

https://reviews.llvm.org/D116042



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