[PATCH] D134966: [DAG] Update foldSelectWithIdentityConstant to use llvm::isNeutralConstant

[Steven Johnson via Phabricator via llvm-commits]

srj added a comment.

Looks like the Halide failure is a SIGFPE on an idiv instruction... we are doing idiv %r15b with edx=0xff, eax=0x8382ff80, r15=0xffffffff... i.e., we are dividing by -1. The result won't fit into 32 bits, so we fail.


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https://reviews.llvm.org/D134966