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| author | Zhou Sheng <zhousheng00@gmail.com> | 2007-04-13 05:57:32 +0000 |
|---|---|---|
| committer | Zhou Sheng <zhousheng00@gmail.com> | 2007-04-13 05:57:32 +0000 |
| commit | daacf22537e0d140c379a39a11a83d3321395d4d (patch) | |
| tree | d8802dfad40064b54cbc9e3e9dd916c22f37f1f3 /lib/Support/ConstantRange.cpp | |
| parent | 7fec90ebf4ebe7aa73a6dd7d275c255587c041ad (diff) | |
Make the apint construction more effective.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35960 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/ConstantRange.cpp')
| -rw-r--r-- | lib/Support/ConstantRange.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Support/ConstantRange.cpp b/lib/Support/ConstantRange.cpp index 79a85b80d7..7179649330 100644 --- a/lib/Support/ConstantRange.cpp +++ b/lib/Support/ConstantRange.cpp @@ -108,7 +108,7 @@ APInt ConstantRange::getUnsignedMin() const { /// ConstantRange. /// APInt ConstantRange::getSignedMax() const { - APInt SignedMax = APInt::getSignedMaxValue(getBitWidth()); + APInt SignedMax(APInt::getSignedMaxValue(getBitWidth())); if (!isWrappedSet()) { if (getLower().slt(getUpper() - 1)) return getUpper() - 1; @@ -130,7 +130,7 @@ APInt ConstantRange::getSignedMax() const { /// ConstantRange. /// APInt ConstantRange::getSignedMin() const { - APInt SignedMin = APInt::getSignedMinValue(getBitWidth()); + APInt SignedMin(APInt::getSignedMinValue(getBitWidth())); if (!isWrappedSet()) { if (getLower().slt(getUpper() - 1)) return getLower(); @@ -370,7 +370,7 @@ ConstantRange ConstantRange::signExtend(uint32_t DstTySize) const { ConstantRange ConstantRange::truncate(uint32_t DstTySize) const { unsigned SrcTySize = getBitWidth(); assert(SrcTySize > DstTySize && "Not a value truncation"); - APInt Size = APInt::getMaxValue(DstTySize).zext(SrcTySize); + APInt Size(APInt::getLowBitsSet(SrcTySize, DstTySize)); if (isFullSet() || getSetSize().ugt(Size)) return ConstantRange(DstTySize); |