Eliminate the stack slot used to save the global base register.

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

diff --git a/lib/CodeGen/CallingConvLower.cpp b/lib/CodeGen/CallingConvLower.cpp
index dac2fef5b43000967b7eaa0ce66218c54d33282c..0b747fd43841c52755eb2d39dfffde5f1ec3449d 100644 (file)
--- a/lib/CodeGen/CallingConvLower.cpp
+++ b/lib/CodeGen/CallingConvLower.cpp
@@ -24,11 +24,11 @@
 using namespace llvm;
 
 CCState::CCState(CallingConv::ID CC, bool isVarArg, MachineFunction &mf,
-                const TargetMachine &tm,
-                 SmallVector<CCValAssign, 16> &locs, LLVMContext &C)
+                 const TargetMachine &tm, SmallVector<CCValAssign, 16> &locs,
+                 LLVMContext &C)
   : CallingConv(CC), IsVarArg(isVarArg), MF(mf), TM(tm),
     TRI(*TM.getRegisterInfo()), Locs(locs), Context(C),
-    CallOrPrologue(Invalid) {
+    CallOrPrologue(Unknown) {
   // No stack is used.
   StackOffset = 0;
 
@@ -49,16 +49,16 @@ void CCState::HandleByVal(unsigned ValNo, MVT ValVT,
     Size = MinSize;
   if (MinAlign > (int)Align)
     Align = MinAlign;
-  TM.getTargetLowering()->HandleByVal(const_cast<CCState*>(this), Size);
+  MF.getFrameInfo()->ensureMaxAlignment(Align);
+  TM.getTargetLowering()->HandleByVal(this, Size);
   unsigned Offset = AllocateStack(Size, Align);
   addLoc(CCValAssign::getMem(ValNo, ValVT, Offset, LocVT, LocInfo));
 }
 
 /// 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,