Change MRegisterDesc::AliasSet, TargetInstrDescriptor::ImplicitDefs

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

diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index 13cd353362a075a942563ca9a584dddaa34fcc45..0ceb866965013f5332314f69e77a837937948946 100644 (file)
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -127,12 +127,15 @@ void PEI::saveCallerSavedRegisters(MachineFunction &Fn) {
     unsigned Reg = CSRegs[i];
     if (ModifiedRegs[Reg]) {
       RegsToSave.push_back(Reg);  // If modified register...
-    } else if (const unsigned *AliasSet = RegInfo->getAliasSet(Reg))
-      for (unsigned j = 0; AliasSet[j]; ++j)     // Check alias registers too...
-       if (ModifiedRegs[AliasSet[j]]) {
+    } else {
+      for (const unsigned *AliasSet = RegInfo->getAliasSet(Reg);
+           *AliasSet; ++AliasSet) {  // Check alias registers too...
+       if (ModifiedRegs[*AliasSet]) {
          RegsToSave.push_back(Reg);
          break;
        }
+      }
+    }
   }
 
   if (RegsToSave.empty())