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| author | Chris Lattner <sabre@nondot.org> | 2007-11-23 22:36:25 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-11-23 22:36:25 +0000 |
| commit | 9ee26cf5e78b1f5440f366c2332e29f68e4ba33b (patch) | |
| tree | cdeb0242e8f408689767d847bed6bc03e9d00c56 /lib/Support | |
| parent | a03930e2abe0b98f7a9fb63ac96e9bf2eda30a24 (diff) | |
| download | external_llvm-9ee26cf5e78b1f5440f366c2332e29f68e4ba33b.zip external_llvm-9ee26cf5e78b1f5440f366c2332e29f68e4ba33b.tar.gz external_llvm-9ee26cf5e78b1f5440f366c2332e29f68e4ba33b.tar.bz2 | |
Fix APInt::countTrailingZeros to return BitWidth if the input is zero instead of returning some random large number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44294 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support')
| -rw-r--r-- | lib/Support/APInt.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Support/APInt.cpp b/lib/Support/APInt.cpp index c5abf4b..7af0101 100644 --- a/lib/Support/APInt.cpp +++ b/lib/Support/APInt.cpp @@ -782,14 +782,14 @@ uint32_t APInt::countLeadingOnes() const { uint32_t APInt::countTrailingZeros() const { if (isSingleWord()) - return CountTrailingZeros_64(VAL); + return std::min(CountTrailingZeros_64(VAL), BitWidth); uint32_t Count = 0; uint32_t i = 0; for (; i < getNumWords() && pVal[i] == 0; ++i) Count += APINT_BITS_PER_WORD; if (i < getNumWords()) Count += CountTrailingZeros_64(pVal[i]); - return Count; + return std::min(Count, BitWidth); } uint32_t APInt::countPopulation() const { |