[PATCH] D150861: [AMDGPU][Uniformity] SI_IF and SI_ELSE pseudos are always divergent

[Sameer Sahasrabuddhe via Phabricator via llvm-commits]

sameerds added inline comments.


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Comment at: llvm/include/llvm/ADT/GenericUniformityImpl.h:1150
 
-  if (DivergentValues.empty()) {
-    assert(DivergentTermBlocks.empty());
-    assert(DivergentExitCycles.empty());
+  // Control flow instructions may be divergent even if their inputs are
+  // uniform. Thus, although exceedingly rare, it is possible to have a program
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I guess I should lead with "On some targets, ..."


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  https://reviews.llvm.org/D150861/new/

https://reviews.llvm.org/D150861