Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.508 -> 1.509
---
Log message:
Fix an infinite loop building the CFE
---
Diffs of the changes: (+2 -1)
InstructionCombining.cpp | 3 ++-
1 files changed, 2 insertions(+), 1 deletion(-)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.508
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.509
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.508 Mon Sep 18
00:27:43 2006
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Mon Sep 18 13:27:05 2006
@@ -3988,7 +3988,8 @@
// preferable because it allows the C<<Y expression to be hoisted out
// of a loop if Y is invariant and X is not.
if (Shift && Shift->hasOneUse() && CI->isNullValue() &&
- I.isEquality() && !Shift->isArithmeticShift()) {
+ I.isEquality() && !Shift->isArithmeticShift() &&
+ isa<Instruction>(Shift->getOperand(0))) {
// Compute C << Y.
Value *NS;
if (Shift->getOpcode() == Instruction::Shr) {
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