diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-06-16 21:03:24 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-06-16 21:03:24 +0000 |
| commit | 7c7aba6e5fef47a01a136be655b0a92cfd7090f6 (patch) | |
| tree | 99ec531924f6078534b100ab9d7696abce848099 /lib/Analysis/ValueTracking.cpp | |
| parent | 7ab83427af0f77b59941ceba41d509d7d097b065 (diff) | |
Notes
Diffstat (limited to 'lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | lib/Analysis/ValueTracking.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp index c0181662fd9d6..b065f427b06cb 100644 --- a/lib/Analysis/ValueTracking.cpp +++ b/lib/Analysis/ValueTracking.cpp @@ -852,7 +852,8 @@ static void computeKnownBitsFromShiftOperator( Optional<bool> ShifterOperandIsNonZero; // Early exit if we can't constrain any well-defined shift amount. - if (!(ShiftAmtKZ & (BitWidth - 1)) && !(ShiftAmtKO & (BitWidth - 1))) { + if (!(ShiftAmtKZ & (PowerOf2Ceil(BitWidth) - 1)) && + !(ShiftAmtKO & (PowerOf2Ceil(BitWidth) - 1))) { ShifterOperandIsNonZero = isKnownNonZero(I->getOperand(1), Depth + 1, Q); if (!*ShifterOperandIsNonZero) @@ -3026,7 +3027,7 @@ bool llvm::getConstantDataArrayInfo(const Value *V, if (GV->getInitializer()->isNullValue()) { Type *GVTy = GV->getValueType(); if ( (ArrayTy = dyn_cast<ArrayType>(GVTy)) ) { - // A zeroinitializer for the array; There is no ConstantDataArray. + // A zeroinitializer for the array; there is no ConstantDataArray. Array = nullptr; } else { const DataLayout &DL = GV->getParent()->getDataLayout(); |