[llvm-commits] CVS: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
Chris Lattner
lattner at cs.uiuc.edu
Sun Jan 11 22:15:01 PST 2004
Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.145 -> 1.146
---
Log message:
Do not hack on volatile loads. I'm not sure what the point of a volatile load
from constant memory is, but lets not take chances.
---
Diffs of the changes: (+2 -0)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.145 llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.146
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.145 Thu Dec 18 23:58:40 2003
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Sun Jan 11 22:13:56 2004
@@ -2064,6 +2064,8 @@
Instruction *InstCombiner::visitLoadInst(LoadInst &LI) {
Value *Op = LI.getOperand(0);
+ if (LI.isVolatile()) return 0;
+
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Op))
Op = CPR->getValue();
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