diff options
| author | Chris Lattner <sabre@nondot.org> | 2005-12-05 18:23:57 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-12-05 18:23:57 +0000 |
| commit | e08dc62b1a3b72e351165128ba63c2cdd2f41eb6 (patch) | |
| tree | d6acd52c6d2d8d425f036f50dd6278d07e3609b0 | |
| parent | b457a931232938dc1ac8c37be62b7819bc173a03 (diff) | |
getRawValue zero extens for unsigned values, use getsextvalue so that we
know that small negative values fit into the immediate field of addressing
modes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24608 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 4f18637c9f..f170592ece 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -560,9 +560,9 @@ static bool isTargetConstant(const SCEVHandle &V) { // FIXME: Look at the target to decide if &GV is a legal constant immediate. if (SCEVConstant *SC = dyn_cast<SCEVConstant>(V)) { // PPC allows a sign-extended 16-bit immediate field. - if ((int64_t)SC->getValue()->getRawValue() > -(1 << 16) && - (int64_t)SC->getValue()->getRawValue() < (1 << 16)-1) - return true; + int64_t V = SC->getValue()->getSExtValue(); + if (V > -(1 << 16) && V < (1 << 16)-1) + return true; return false; } |