X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FCallingConvLower.cpp;h=14eb0541dc8d7866d7ee62afd69bfa977f216ece;hb=23946fcaaefaf3c1a9d1ef86a3786f622c005f1a;hp=74fdbe6458bde4359d66c89302b5a92b66628cc4;hpb=1440e8b918d7116c3587cb95f4f7ac7a0a0b65ad;p=oota-llvm.git

diff --git a/lib/CodeGen/CallingConvLower.cpp b/lib/CodeGen/CallingConvLower.cpp
index 74fdbe6458b..14eb0541dc8 100644
--- a/lib/CodeGen/CallingConvLower.cpp
+++ b/lib/CodeGen/CallingConvLower.cpp
@@ -13,28 +13,33 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CodeGen/CallingConvLower.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetRegisterInfo.h"
 #include "llvm/Target/TargetData.h"
 #include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetLowering.h"
 using namespace llvm;
 
-CCState::CCState(CallingConv::ID CC, bool isVarArg, const TargetMachine &tm,
-                 SmallVector<CCValAssign, 16> &locs, LLVMContext &C)
-  : CallingConv(CC), IsVarArg(isVarArg), TM(tm),
-    TRI(*TM.getRegisterInfo()), Locs(locs), Context(C) {
+CCState::CCState(CallingConv::ID CC, bool isVarArg, MachineFunction &mf,
+                 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(Unknown) {
   // No stack is used.
   StackOffset = 0;
-  
+
+  clearFirstByValReg();
   UsedRegs.resize((TRI.getNumRegs()+31)/32);
 }
 
-// HandleByVal - Allocate a stack slot large enough to pass an argument by
-// value. The size and alignment information of the argument is encoded in its
-// parameter attribute.
-void CCState::HandleByVal(unsigned ValNo, EVT ValVT,
+// HandleByVal - Allocate space on the stack large enough to pass an argument
+// by value. The size and alignment information of the argument is encoded in
+// its parameter attribute.
+void CCState::HandleByVal(unsigned ValNo, MVT ValVT,
                           MVT LocVT, CCValAssign::LocInfo LocInfo,
                           int MinSize, int MinAlign,
                           ISD::ArgFlagsTy ArgFlags) {
@@ -44,18 +49,18 @@ void CCState::HandleByVal(unsigned ValNo, EVT ValVT,
     Size = MinSize;
   if (MinAlign > (int)Align)
     Align = MinAlign;
+  if (MF.getFrameInfo()->getMaxAlignment() < Align)
+    MF.getFrameInfo()->setMaxAlignment(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) {
-  UsedRegs[Reg/32] |= 1 << (Reg&31);
-  
-  if (const unsigned *RegAliases = TRI.getAliasSet(Reg))
-    for (; (Reg = *RegAliases); ++RegAliases)
-      UsedRegs[Reg/32] |= 1 << (Reg&31);
+  for (const unsigned *Alias = TRI.getOverlaps(Reg);
+       unsigned Reg = *Alias; ++Alias)
+    UsedRegs[Reg/32] |= 1 << (Reg&31);
 }
 
 /// AnalyzeFormalArguments - Analyze an array of argument values,
@@ -157,7 +162,7 @@ void CCState::AnalyzeCallResult(const SmallVectorImpl<ISD::InputArg> &Ins,
     if (Fn(i, VT, VT, CCValAssign::Full, Flags, *this)) {
 #ifndef NDEBUG
       dbgs() << "Call result #" << i << " has unhandled type "
-             << EVT(VT).getEVTString();
+             << EVT(VT).getEVTString() << "\n";
 #endif
       llvm_unreachable(0);
     }