X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FPseudoSourceValue.cpp;h=b1c341d3a681bd414f6ec53ee6ab7cff03dde700;hb=283c82abaaa85d032725cba11fb9ad05c9a9b060;hp=12b2c902f8d33d128b52eb5a0a17a932e2924d29;hpb=d63390cba15f10600d550201f2e9109e75933a0f;p=oota-llvm.git

diff --git a/lib/CodeGen/PseudoSourceValue.cpp b/lib/CodeGen/PseudoSourceValue.cpp
index 12b2c902f8d..b1c341d3a68 100644
--- 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 {