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…s defined (#70966)
Fixes#64860.
When a select instruction comes in by PHINode, the phi's incoming block
for it can flow indirectly past other BasicBlock into it. In this case,
we cannot unfold select to the phi's BB.
llvm commit: 3758aed
Reproduce with:
opt -passes='dfa-jump-threading' bbi-85425.ll -o /dev/null
Result:
This is old, it happens ever since the introduction of the dfa-jump-threading pass in https://reviews.llvm.org/D99205 .
bbi-85425.ll.gz
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