[DebugInfo] Add kind of ImplicitParamDecl for emission of FlagObjectPointer.

Summary:
If the first parameter of the function is the ImplicitParamDecl, codegen
automatically marks it as an implicit argument with `this` or `self`
pointer. Added internal kind of the ImplicitParamDecl to separate
'this', 'self', 'vtt' and other implicit parameters from other kind of
parameters.

Reviewers: rjmccall, aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D33735

llvm-svn: 305075

1 files changed, 16 insertions, 12 deletions

diff --git a/clang/lib/CodeGen/CGObjC.cpp b/clang/lib/CodeGen/CGObjC.cpp
index 82052012176..90fcad26141 100644
--- a/clang/lib/CodeGen/CGObjC.cpp
+++ b/clang/lib/CodeGen/CGObjC.cpp
@@ -3246,10 +3246,12 @@ CodeGenFunction::GenerateObjCAtomicSetterCopyHelperFunction(
   SrcTy = C.getPointerType(SrcTy);
   
   FunctionArgList args;
-  ImplicitParamDecl dstDecl(getContext(), FD, SourceLocation(), nullptr,DestTy);
-  args.push_back(&dstDecl);
-  ImplicitParamDecl srcDecl(getContext(), FD, SourceLocation(), nullptr, SrcTy);
-  args.push_back(&srcDecl);
+  ImplicitParamDecl DstDecl(getContext(), FD, SourceLocation(), /*Id=*/nullptr,
+                            DestTy, ImplicitParamDecl::Other);
+  args.push_back(&DstDecl);
+  ImplicitParamDecl SrcDecl(getContext(), FD, SourceLocation(), /*Id=*/nullptr,
+                            SrcTy, ImplicitParamDecl::Other);
+  args.push_back(&SrcDecl);
 
   const CGFunctionInfo &FI =
     CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, args);
@@ -3265,12 +3267,12 @@ CodeGenFunction::GenerateObjCAtomicSetterCopyHelperFunction(
 
   StartFunction(FD, C.VoidTy, Fn, FI, args);
   
-  DeclRefExpr DstExpr(&dstDecl, false, DestTy,
+  DeclRefExpr DstExpr(&DstDecl, false, DestTy,
                       VK_RValue, SourceLocation());
   UnaryOperator DST(&DstExpr, UO_Deref, DestTy->getPointeeType(),
                     VK_LValue, OK_Ordinary, SourceLocation());
   
-  DeclRefExpr SrcExpr(&srcDecl, false, SrcTy,
+  DeclRefExpr SrcExpr(&SrcDecl, false, SrcTy,
                       VK_RValue, SourceLocation());
   UnaryOperator SRC(&SrcExpr, UO_Deref, SrcTy->getPointeeType(),
                     VK_LValue, OK_Ordinary, SourceLocation());
@@ -3327,10 +3329,12 @@ CodeGenFunction::GenerateObjCAtomicGetterCopyHelperFunction(
   SrcTy = C.getPointerType(SrcTy);
   
   FunctionArgList args;
-  ImplicitParamDecl dstDecl(getContext(), FD, SourceLocation(), nullptr,DestTy);
-  args.push_back(&dstDecl);
-  ImplicitParamDecl srcDecl(getContext(), FD, SourceLocation(), nullptr, SrcTy);
-  args.push_back(&srcDecl);
+  ImplicitParamDecl DstDecl(getContext(), FD, SourceLocation(), /*Id=*/nullptr,
+                            DestTy, ImplicitParamDecl::Other);
+  args.push_back(&DstDecl);
+  ImplicitParamDecl SrcDecl(getContext(), FD, SourceLocation(), /*Id=*/nullptr,
+                            SrcTy, ImplicitParamDecl::Other);
+  args.push_back(&SrcDecl);
 
   const CGFunctionInfo &FI =
     CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, args);
@@ -3345,7 +3349,7 @@ CodeGenFunction::GenerateObjCAtomicGetterCopyHelperFunction(
 
   StartFunction(FD, C.VoidTy, Fn, FI, args);
   
-  DeclRefExpr SrcExpr(&srcDecl, false, SrcTy,
+  DeclRefExpr SrcExpr(&SrcDecl, false, SrcTy,
                       VK_RValue, SourceLocation());
   
   UnaryOperator SRC(&SrcExpr, UO_Deref, SrcTy->getPointeeType(),
@@ -3371,7 +3375,7 @@ CodeGenFunction::GenerateObjCAtomicGetterCopyHelperFunction(
                              CXXConstExpr->getConstructionKind(),
                              SourceRange());
   
-  DeclRefExpr DstExpr(&dstDecl, false, DestTy,
+  DeclRefExpr DstExpr(&DstDecl, false, DestTy,
                       VK_RValue, SourceLocation());
   
   RValue DV = EmitAnyExpr(&DstExpr);