[PATCH] D40039: [CVP] Remove some {s|u}sub.with.overflow checks.

[Joel Galenson via Phabricator via llvm-commits]

jgalenson created this revision.

This uses ConstantRange::makeGuaranteedNoWrapRegion's newly-added handling for subtraction to allow CVP to remove some subtraction overflow checks.


https://reviews.llvm.org/D40039

Files:
  lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
  test/Transforms/CorrelatedValuePropagation/overflows.ll

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