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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 | 80c540e656c536918b7c3d6966cf745358ce18b3 (patch) | |
| tree | 51cf37feed6062f5d3d73331e1393c806e9c436c /llvm/lib/Analysis/ValueTracking.cpp | |
| parent | 51861b4855853158b9b35d78d46000af8cc1f500 (diff) | |
| download | bcm5719-llvm-80c540e656c536918b7c3d6966cf745358ce18b3.tar.gz bcm5719-llvm-80c540e656c536918b7c3d6966cf745358ce18b3.zip | |
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.
llvm-svn: 153817
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 17bad941e50..1784f008d5b 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/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); |
