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

This reverts commit 126863.

llvm-svn: 126886

1 files changed, 8 insertions, 21 deletions

diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 3c3765a1ae5..1d9a9a6a8ce 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -36,7 +36,6 @@ static unsigned ClangCallConvToLLVMCallConv(CallingConv CC) {
   case CC_X86StdCall: return llvm::CallingConv::X86_StdCall;
   case CC_X86FastCall: return llvm::CallingConv::X86_FastCall;
   case CC_X86ThisCall: return llvm::CallingConv::X86_ThisCall;
-  case CC_Win64ThisCall: return llvm::CallingConv::Win64_ThisCall;
   // TODO: add support for CC_X86Pascal to llvm
   }
 }
@@ -76,23 +75,19 @@ CodeGenTypes::getFunctionInfo(CanQual<FunctionNoProtoType> FTNP,
 static const CGFunctionInfo &getFunctionInfo(CodeGenTypes &CGT,
                                   llvm::SmallVectorImpl<CanQualType> &ArgTys,
                                              CanQual<FunctionProtoType> FTP,
-                                             CallingConv CC,
                                              bool IsRecursive = false) {
   // FIXME: Kill copy.
   for (unsigned i = 0, e = FTP->getNumArgs(); i != e; ++i)
     ArgTys.push_back(FTP->getArgType(i));
   CanQualType ResTy = FTP->getResultType().getUnqualifiedType();
-
-  return CGT.getFunctionInfo(ResTy, ArgTys,
-                             FTP->getExtInfo().withCallingConv(CC),
-                             IsRecursive);
+  return CGT.getFunctionInfo(ResTy, ArgTys, FTP->getExtInfo(), IsRecursive);
 }
 
 const CGFunctionInfo &
 CodeGenTypes::getFunctionInfo(CanQual<FunctionProtoType> FTP,
                               bool IsRecursive) {
   llvm::SmallVector<CanQualType, 16> ArgTys;
-  return ::getFunctionInfo(*this, ArgTys, FTP, CC_Default, IsRecursive);
+  return ::getFunctionInfo(*this, ArgTys, FTP, IsRecursive);
 }
 
 static CallingConv getCallingConventionForDecl(const Decl *D) {
@@ -119,10 +114,8 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXRecordDecl *RD,
   // Add the 'this' pointer.
   ArgTys.push_back(GetThisType(Context, RD));
 
-  CallingConv CC = Context.Target.isWin64() ? CC_Win64ThisCall : CC_Default;
-
   return ::getFunctionInfo(*this, ArgTys,
-           FTP->getCanonicalTypeUnqualified().getAs<FunctionProtoType>(), CC);
+              FTP->getCanonicalTypeUnqualified().getAs<FunctionProtoType>());
 }
 
 const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXMethodDecl *MD) {
@@ -135,9 +128,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXMethodDecl *MD) {
   if (MD->isInstance())
     ArgTys.push_back(GetThisType(Context, MD->getParent()));
 
-  CallingConv CC = Context.Target.isWin64() ? CC_Win64ThisCall : CC_Default;
-
-  return ::getFunctionInfo(*this, ArgTys, GetFormalType(MD), CC);
+  return ::getFunctionInfo(*this, ArgTys, GetFormalType(MD));
 }
 
 const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXConstructorDecl *D,
@@ -154,9 +145,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXConstructorDecl *D,
   for (unsigned i = 0, e = FTP->getNumArgs(); i != e; ++i)
     ArgTys.push_back(FTP->getArgType(i));
 
-  CallingConv CC = Context.Target.isWin64() ? CC_Win64ThisCall : CC_Default;
-
-  return getFunctionInfo(ResTy, ArgTys, FTP->getExtInfo().withCallingConv(CC));
+  return getFunctionInfo(ResTy, ArgTys, FTP->getExtInfo());
 }
 
 const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXDestructorDecl *D,
@@ -170,9 +159,7 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const CXXDestructorDecl *D,
   CanQual<FunctionProtoType> FTP = GetFormalType(D);
   assert(FTP->getNumArgs() == 0 && "dtor with formal parameters");
 
-  CallingConv CC = Context.Target.isWin64() ? CC_Win64ThisCall : CC_Default;
-
-  return getFunctionInfo(ResTy, ArgTys, FTP->getExtInfo().withCallingConv(CC));
+  return getFunctionInfo(ResTy, ArgTys, FTP->getExtInfo());
 }
 
 const CGFunctionInfo &CodeGenTypes::getFunctionInfo(const FunctionDecl *FD) {
@@ -263,8 +250,8 @@ const CGFunctionInfo &CodeGenTypes::getFunctionInfo(CanQualType ResTy,
     return *FI;
 
   // Construct the function info.
-  FI = new CGFunctionInfo(CC, Info.getNoReturn(), Info.getRegParm(),
-                          ResTy, ArgTys.data(), ArgTys.size());
+  FI = new CGFunctionInfo(CC, Info.getNoReturn(), Info.getRegParm(), ResTy,
+                          ArgTys.data(), ArgTys.size());
   FunctionInfos.InsertNode(FI, InsertPos);
 
   // Compute ABI information.