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[oota-llvm.git] / lib / CodeGen / PseudoSourceValue.cpp

diff --git a/lib/CodeGen/PseudoSourceValue.cpp b/lib/CodeGen/PseudoSourceValue.cpp
index 12b2c902f8d33d128b52eb5a0a17a932e2924d29..b1c341d3a681bd414f6ec53ee6ab7cff03dde700 100644 (file)
--- a/lib/CodeGen/PseudoSourceValue.cpp
+++ b/lib/CodeGen/PseudoSourceValue.cpp
@@ -107,13 +107,9 @@ bool FixedStackPseudoSourceValue::isConstant(const MachineFrameInfo *MFI) const{
 }
 
 bool FixedStackPseudoSourceValue::isAliased(const MachineFrameInfo *MFI) const {
-  // Negative frame indices are used for special things that don't
-  // appear in LLVM IR. Non-negative indices may be used for things
-  // like static allocas.
   if (!MFI)
-    return FI >= 0;
-  // Spill slots should not alias others.
-  return !MFI->isFixedObjectIndex(FI) && !MFI->isSpillSlotObjectIndex(FI);
+    return true;
+  return MFI->isAliasedObjectIndex(FI);
 }
 
 bool FixedStackPseudoSourceValue::mayAlias(const MachineFrameInfo *MFI) const {