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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-11-28 16:56:38 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2011-11-28 16:56:38 +0000 |
| commit | 39a2eb7dea034820eb4b93b2361ae307b0cee5f2 (patch) | |
| tree | f59232f77c134e4c537f880cd5df913034833b79 /include/llvm/ADT/APInt.h | |
| parent | 64acc57b23530aee37d224f48293cb764c4290a8 (diff) | |
| download | llvm-39a2eb7dea034820eb4b93b2361ae307b0cee5f2.tar.gz llvm-39a2eb7dea034820eb4b93b2361ae307b0cee5f2.tar.bz2 llvm-39a2eb7dea034820eb4b93b2361ae307b0cee5f2.tar.xz | |
Handle more cases in APInt::getLowBitsSet's fast path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145249 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/ADT/APInt.h')
| -rw-r--r-- | include/llvm/ADT/APInt.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/llvm/ADT/APInt.h b/include/llvm/ADT/APInt.h index 707e0dbb6b..78119bce2a 100644 --- a/include/llvm/ADT/APInt.h +++ b/include/llvm/ADT/APInt.h @@ -497,8 +497,8 @@ public: if (loBitsSet == APINT_BITS_PER_WORD) return APInt(numBits, -1ULL); // For small values, return quickly. - if (numBits < APINT_BITS_PER_WORD) - return APInt(numBits, (1ULL << loBitsSet) - 1); + if (loBitsSet <= APINT_BITS_PER_WORD) + return APInt(numBits, -1ULL >> (APINT_BITS_PER_WORD - loBitsSet)); return getAllOnesValue(numBits).lshr(numBits - loBitsSet); } |