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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2012-04-04 12:51:34 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2012-04-04 12:51:34 +0000 |
| commit | 26c8dcc692fb2addd475446cfff24d6a4e958bca (patch) | |
| tree | b71cb0d781e2735397c728f276f14ea63780d04c /lib/Transforms/InstCombine/InstCombine.h | |
| parent | 00b73a5e443d49d68f59a5fb517e940842423ae6 (diff) | |
| download | llvm-26c8dcc692fb2addd475446cfff24d6a4e958bca.tar.gz llvm-26c8dcc692fb2addd475446cfff24d6a4e958bca.tar.bz2 llvm-26c8dcc692fb2addd475446cfff24d6a4e958bca.tar.xz | |
Always compute all the bits in ComputeMaskedBits.
This allows us to keep passing reduced masks to SimplifyDemandedBits, but
know about all the bits if SimplifyDemandedBits fails. This allows instcombine
to simplify cases like the one in the included testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154011 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombine.h')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombine.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/InstCombine/InstCombine.h b/lib/Transforms/InstCombine/InstCombine.h index 464e9d0a61..199df519ce 100644 --- a/lib/Transforms/InstCombine/InstCombine.h +++ b/lib/Transforms/InstCombine/InstCombine.h @@ -291,9 +291,9 @@ public: return 0; // Don't do anything with FI } - void ComputeMaskedBits(Value *V, const APInt &Mask, APInt &KnownZero, + void ComputeMaskedBits(Value *V, APInt &KnownZero, APInt &KnownOne, unsigned Depth = 0) const { - return llvm::ComputeMaskedBits(V, Mask, KnownZero, KnownOne, TD, Depth); + return llvm::ComputeMaskedBits(V, KnownZero, KnownOne, TD, Depth); } bool MaskedValueIsZero(Value *V, const APInt &Mask, |