Allocate the contents of DwarfDebug's StringMaps in a single big BumpPtrAllocator.

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

diff --git a/lib/CodeGen/CallingConvLower.cpp b/lib/CodeGen/CallingConvLower.cpp
index 14eb0541dc8d7866d7ee62afd69bfa977f216ece..b2c976b2a5e36dd1f6f820b4f30c3a85c6a88ff4 100644 (file)
--- a/lib/CodeGen/CallingConvLower.cpp
+++ b/lib/CodeGen/CallingConvLower.cpp
@@ -58,9 +58,8 @@ void CCState::HandleByVal(unsigned ValNo, MVT ValVT,
 
 /// MarkAllocated - Mark a register and all of its aliases as allocated.
 void CCState::MarkAllocated(unsigned Reg) {
-  for (const unsigned *Alias = TRI.getOverlaps(Reg);
-       unsigned Reg = *Alias; ++Alias)
-    UsedRegs[Reg/32] |= 1 << (Reg&31);
+  for (MCRegAliasIterator AI(Reg, &TRI, true); AI.isValid(); ++AI)
+    UsedRegs[*AI/32] |= 1 << (*AI&31);
 }
 
 /// AnalyzeFormalArguments - Analyze an array of argument values,