Changes in directory llvm/lib/Transforms/Scalar:
LoopStrengthReduce.cpp updated: 1.70 -> 1.71
---
Log message:
getRawValue zero extens for unsigned values, use getsextvalue so that we
know that small negative values fit into the immediate field of addressing
modes.
---
Diffs of the changes: (+3 -3)
LoopStrengthReduce.cpp | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
Index: llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
diff -u llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.70
llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.71
--- llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.70 Fri Oct 21
00:45:41 2005
+++ llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp Mon Dec 5 12:23:57 2005
@@ -560,9 +560,9 @@
// 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;
}
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