================
@@ -3362,10 +3385,23 @@ Instruction
*InstCombinerImpl::visitAllocSite(Instruction &MI) {
DIB.reset(new DIBuilder(*MI.getModule(), /*AllowUnresolved=*/false));
}
- if (isAllocSiteRemovable(&MI, Users, TLI)) {
+ // Determine what getInitialValueOfAllocation would return without actually
allocating the result.
+ bool KnowInitUndef = isa<AllocaInst>(MI);
----------------
vtjnash wrote:
Seems like a good idea, but it doesn't look like it:
https://llvm.org/doxygen/namespacellvm.html#a108b6e33f153eda5019d322f0ac909b0
https://github.com/llvm/llvm-project/pull/143958
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