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| author | Sylvestre Ledru <sylvestre@debian.org> | 2012-09-27 10:14:43 +0000 |
|---|---|---|
| committer | Sylvestre Ledru <sylvestre@debian.org> | 2012-09-27 10:14:43 +0000 |
| commit | 91ce36c98668d1f3be0fe4a3b92aba86556c949f (patch) | |
| tree | dc7a4a2b21e7ad3ba01c2d7383031f9bf1aac7b9 /llvm/lib/Analysis/ValueTracking.cpp | |
| parent | 721cffd53a2c0e22167e042c53056b22e9363f67 (diff) | |
| download | bcm5719-llvm-91ce36c98668d1f3be0fe4a3b92aba86556c949f.tar.gz bcm5719-llvm-91ce36c98668d1f3be0fe4a3b92aba86556c949f.zip | |
Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767
llvm-svn: 164768
Diffstat (limited to 'llvm/lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 19fde0e419b..491224a4b69 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -470,7 +470,7 @@ void llvm::ComputeMaskedBits(Value *V, APInt &KnownZero, APInt &KnownOne, return; } case Instruction::Shl: - // (shl X, C1) & C2 == 0 if (X & C2 >>u C1) == 0 + // (shl X, C1) & C2 == 0 iff (X & C2 >>u C1) == 0 if (ConstantInt *SA = dyn_cast<ConstantInt>(I->getOperand(1))) { uint64_t ShiftAmt = SA->getLimitedValue(BitWidth); ComputeMaskedBits(I->getOperand(0), KnownZero, KnownOne, TD, Depth+1); @@ -482,7 +482,7 @@ void llvm::ComputeMaskedBits(Value *V, APInt &KnownZero, APInt &KnownOne, } break; case Instruction::LShr: - // (ushr X, C1) & C2 == 0 if (-1 >> C1) & C2 == 0 + // (ushr X, C1) & C2 == 0 iff (-1 >> C1) & C2 == 0 if (ConstantInt *SA = dyn_cast<ConstantInt>(I->getOperand(1))) { // Compute the new bits that are at the top now. uint64_t ShiftAmt = SA->getLimitedValue(BitWidth); @@ -498,7 +498,7 @@ void llvm::ComputeMaskedBits(Value *V, APInt &KnownZero, APInt &KnownOne, } break; case Instruction::AShr: - // (ashr X, C1) & C2 == 0 if (-1 >> C1) & C2 == 0 + // (ashr X, C1) & C2 == 0 iff (-1 >> C1) & C2 == 0 if (ConstantInt *SA = dyn_cast<ConstantInt>(I->getOperand(1))) { // Compute the new bits that are at the top now. uint64_t ShiftAmt = SA->getLimitedValue(BitWidth-1); |
