[llvm-branch-commits] [llvm] AMDGPU/GlobalISel: Temporal divergence lowering (non i1) (PR #124298)

[Petar Avramovic via llvm-branch-commits]

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@@ -395,6 +399,14 @@ template <typename ContextT> class GenericUniformityAnalysisImpl {
   }
 
   void print(raw_ostream &out) const;
+  SmallVector<UOCWDE, 8> UsesOutsideCycleWithDivergentExit;
+  void recordUseOutsideCycleWithDivergentExit(const InstructionT *,
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petar-avramovic wrote:

I was considering TemporalDivergenceCandidate.  I did not find strict definition of Temporal Divergence so I ended up using UseOutsideCycleWithDivergentExit since it is more technical and, I assume, not target dependent.
It is not Temporal Divergence until we check uniformity of Src used OutsideCycleWithDivergentExit and it turns out to be uniform or the other case check type and it is i1. For us divergent i1 is also technically Temporal Divergence since it will ends up in sgpr.
I am fine with using different name instead of "UseOutsideCycleWithDivergentExit" if you think it is more appropriate.

https://github.com/llvm/llvm-project/pull/124298