[llvm] [Instrumentation] Fix EdgeCounts vector size in SetBranchWeights (PR #99064)
Ellis Hoag via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 14 11:18:47 PDT 2024
================
@@ -1623,10 +1623,12 @@ void PGOUseFunc::setBranchWeights() {
continue;
// We have a non-zero Branch BB.
- unsigned Size = BBCountInfo.OutEdges.size();
- SmallVector<uint64_t, 2> EdgeCounts(Size, 0);
+ unsigned OutEdgesCount = BBCountInfo.OutEdges.size();
+ unsigned SuccessorCount = BB.getTerminator()->getNumSuccessors();
+
+ SmallVector<uint64_t, 2> EdgeCounts(SuccessorCount, 0);
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ellishg wrote:
Ah, I didn't know you were able to run `-print-before=pgo-instr-use`! I now able to reproduce and I think I can get a reasonable test case.
https://github.com/llvm/llvm-project/pull/99064
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