[llvm] [AMDGPU][TTI] Add Target Hook for Instruction Uniformity (getInstructionUniformity) (PR #137639)

Matt Arsenault via llvm-commits llvm-commits at lists.llvm.org
Wed Sep 24 23:51:55 PDT 2025


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@@ -407,6 +408,11 @@ template <typename ContextT> class GenericUniformityAnalysisImpl {
   void recordTemporalDivergence(ConstValueRefT, const InstructionT *,
                                 const CycleT *);
 
+  bool isAnyOperandUniform(const InstructionT &Instr) const;
+
+  /// \brief keep track of special target intrinsics that can be proven uniform.
+  void addSpecialUniformIntrinsic(const InstructionT &Instr);
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arsenm wrote:

It's not clear to me what 'special' means. Is there a better name? 

https://github.com/llvm/llvm-project/pull/137639


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