diff options
| author | Dan Gohman <gohman@apple.com> | 2010-08-04 19:52:50 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-08-04 19:52:50 +0000 |
| commit | ddd3a8899a31f858097bc482082a74b3f684b426 (patch) | |
| tree | f2206c12fe92452989848d4755f97330baa67831 /lib/Analysis/ScalarEvolution.cpp | |
| parent | 9f6a6862be09df9f1e90b0560e52da7d15935f24 (diff) | |
Fix a minor bug which resulted in intermediate calculations
using wider types than are necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110241 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index 1dc8e83b12..9aaafafe05 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -1896,7 +1896,7 @@ const SCEV *ScalarEvolution::getUDivExpr(const SCEV *LHS, // TODO: Generalize this to non-constants by using known-bits information. const Type *Ty = LHS->getType(); unsigned LZ = RHSC->getValue()->getValue().countLeadingZeros(); - unsigned MaxShiftAmt = getTypeSizeInBits(Ty) - LZ; + unsigned MaxShiftAmt = getTypeSizeInBits(Ty) - LZ - 1; // For non-power-of-two values, effectively round the value up to the // nearest power of two. if (!RHSC->getValue()->getValue().isPowerOf2()) |