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(parent: 0b7bc77) | patch
While SimplifyDemandedBits constant folds this, we can't rely on it here.
authorBenjamin Kramer <benny.kra@googlemail.com>
Sat, 2 Apr 2011 18:50:58 +0000 (18:50 +0000)
committerBenjamin Kramer <benny.kra@googlemail.com>
Sat, 2 Apr 2011 18:50:58 +0000 (18:50 +0000)
commitf5b75932b8c23db5789ad19687c98070c551e896
tree666688ebfc02511c84e8dee776c5b995421861e6tree | snapshot
parent0b7bc77e305d8d4bd5615e54cf61f32cd0cac9c2commit | diff
While SimplifyDemandedBits constant folds this, we can't rely on it here.

It's possible to craft an input that hits the recursion limits in a way
that SimplifyDemandedBits doesn't simplify the icmp but ComputeMaskedBits
can infer which bits are zero.

No test case as it depends on too many other things. Fixes PR9609.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128777 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Transforms/InstCombine/InstCombineCasts.cpp diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors