[llvm-commits] Patch: Have isa<IntrinsicInst> do a string prefix compare

[Michael Ilseman]

Refactor isIntrinsic() to be quicker, and change classof() (and thus, isa<IntrinsicInst>()) to use it. This decreases the number of occurrences of the slow-path string matching performed by getIntrinsicID().

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