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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2012-03-31 18:14:00 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2012-03-31 18:14:00 +0000 |
| commit | 95d594cac3737ae1594a391276942a443cac426b (patch) | |
| tree | 169dda5061241d6c695ce797a8d8f84887d5b43f /lib/Analysis/ValueTracking.cpp | |
| parent | 5b00ceaeeabff8c25abb09926343c3fcb06053d8 (diff) | |
| download | external_llvm-95d594cac3737ae1594a391276942a443cac426b.zip external_llvm-95d594cac3737ae1594a391276942a443cac426b.tar.gz external_llvm-95d594cac3737ae1594a391276942a443cac426b.tar.bz2 | |
Teach CodeGen's version of computeMaskedBits to understand the range metadata.
This is the CodeGen equivalent of r153747. I tested that there is not noticeable
performance difference with any combination of -O0/-O2 /-g when compiling
gcc as a single compilation unit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153817 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | lib/Analysis/ValueTracking.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp index 17bad94..1784f00 100644 --- a/lib/Analysis/ValueTracking.cpp +++ b/lib/Analysis/ValueTracking.cpp @@ -197,8 +197,8 @@ static void ComputeMaskedBitsMul(Value *Op0, Value *Op1, bool NSW, KnownOne.setBit(BitWidth - 1); } -static void computeMaskedBitsLoad(const MDNode &Ranges, const APInt &Mask, - APInt &KnownZero) { +void llvm::computeMaskedBitsLoad(const MDNode &Ranges, const APInt &Mask, + APInt &KnownZero) { unsigned BitWidth = Mask.getBitWidth(); unsigned NumRanges = Ranges.getNumOperands() / 2; assert(NumRanges >= 1); |