Revert "Add CC_Win64ThisCall and set it in the necessary places."

This reverts commit 126863.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126886 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 21 deletions

diff --git a/lib/CodeGen/CGExprCXX.cpp b/lib/CodeGen/CGExprCXX.cpp
index 06d04a5e52..bba7864bff 100644
--- a/lib/CodeGen/CGExprCXX.cpp
+++ b/lib/CodeGen/CGExprCXX.cpp
@@ -48,13 +48,8 @@ RValue CodeGenFunction::EmitCXXMemberCall(const CXXMethodDecl *MD,
   EmitCallArgs(Args, FPT, ArgBeg, ArgEnd);
 
   QualType ResultType = FPT->getResultType();
-  FunctionType::ExtInfo Info = FPT->getExtInfo();
-
-  if (getContext().Target.isWin64()) {
-      Info = Info.withCallingConv(CC_Win64ThisCall);
-  }
-
-  return EmitCall(CGM.getTypes().getFunctionInfo(ResultType, Args, Info),
+  return EmitCall(CGM.getTypes().getFunctionInfo(ResultType, Args,
+                                                 FPT->getExtInfo()),
                   Callee, ReturnValue, Args, MD);
 }
 
@@ -297,11 +292,8 @@ CodeGenFunction::EmitCXXMemberPointerCallExpr(const CXXMemberCallExpr *E,
   // And the rest of the call args
   EmitCallArgs(Args, FPT, E->arg_begin(), E->arg_end());
   const FunctionType *BO_FPT = BO->getType()->getAs<FunctionProtoType>();
-
-  const CGFunctionInfo &FI = CGM.getTypes().getFunctionInfo(Args, BO_FPT,
-          CGM.getContext().Target.isWin64() ? CC_Win64ThisCall : CC_Default);
-
-  return EmitCall(FI , Callee, ReturnValue, Args);
+  return EmitCall(CGM.getTypes().getFunctionInfo(Args, BO_FPT), Callee, 
+                  ReturnValue, Args);
 }
 
 RValue
@@ -818,10 +810,8 @@ namespace {
       for (unsigned I = 0; I != NumPlacementArgs; ++I)
         DeleteArgs.push_back(std::make_pair(getPlacementArgs()[I], *AI++));
 
-      // FIXME Check whether this needs thiscall on Win64.
       // Call 'operator delete'.
-      CGF.EmitCall(CGF.CGM.getTypes().getFunctionInfo(DeleteArgs, FPT,
-                                                      CC_Default),
+      CGF.EmitCall(CGF.CGM.getTypes().getFunctionInfo(DeleteArgs, FPT),
                    CGF.CGM.GetAddrOfFunction(OperatorDelete),
                    ReturnValueSlot(), DeleteArgs, OperatorDelete);
     }
@@ -881,10 +871,8 @@ namespace {
         DeleteArgs.push_back(std::make_pair(RV, *AI++));
       }
 
-      // FIXME Check whether this needs thiscall on Win64.
       // Call 'operator delete'.
-      CGF.EmitCall(CGF.CGM.getTypes().getFunctionInfo(DeleteArgs, FPT,
-                                                      CC_Default),
+      CGF.EmitCall(CGF.CGM.getTypes().getFunctionInfo(DeleteArgs, FPT),
                    CGF.CGM.GetAddrOfFunction(OperatorDelete),
                    ReturnValueSlot(), DeleteArgs, OperatorDelete);
     }
@@ -988,7 +976,7 @@ llvm::Value *CodeGenFunction::EmitCXXNewExpr(const CXXNewExpr *E) {
 
   // Emit the call to new.
   RValue RV =
-    EmitCall(CGM.getTypes().getFunctionInfo(NewArgs, NewFTy, CC_Default),
+    EmitCall(CGM.getTypes().getFunctionInfo(NewArgs, NewFTy),
              CGM.GetAddrOfFunction(NewFD), ReturnValueSlot(), NewArgs, NewFD);
 
   // If an allocation function is declared with an empty exception specification
@@ -1098,7 +1086,7 @@ void CodeGenFunction::EmitDeleteCall(const FunctionDecl *DeleteFD,
     DeleteArgs.push_back(std::make_pair(RValue::get(Size), SizeTy));
 
   // Emit the call to delete.
-  EmitCall(CGM.getTypes().getFunctionInfo(DeleteArgs, DeleteFTy, CC_Default),
+  EmitCall(CGM.getTypes().getFunctionInfo(DeleteArgs, DeleteFTy),
            CGM.GetAddrOfFunction(DeleteFD), ReturnValueSlot(), 
            DeleteArgs, DeleteFD);
 }
@@ -1219,7 +1207,7 @@ namespace {
       }
 
       // Emit the call to delete.
-      CGF.EmitCall(CGF.getTypes().getFunctionInfo(Args, DeleteFTy, CC_Default),
+      CGF.EmitCall(CGF.getTypes().getFunctionInfo(Args, DeleteFTy),
                    CGF.CGM.GetAddrOfFunction(OperatorDelete),
                    ReturnValueSlot(), Args, OperatorDelete);
     }