From 9e6c20bae697c908b7d368c0f79f5510d1006a65 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Tue, 21 Apr 2009 00:41:40 +0000
Subject: [PATCH] Assert on a few conditions that (I believe) should hold
 w.r.t. ASTContext::[gs]etFieldDecl, and the Field argument to
 EmitObjCValueForIvar).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69639 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/AST/ASTContext.cpp    | 2 ++
 lib/CodeGen/CGObjCGNU.cpp | 1 +
 lib/CodeGen/CGObjCMac.cpp | 2 ++
 3 files changed, 5 insertions(+)

diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 48d9fe4ea9..e266774dde 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -18,6 +18,7 @@
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExternalASTSource.h"
 #include "clang/AST/RecordLayout.h"
+#include "clang/AST/ExprObjC.h"
 #include "clang/Basic/SourceManager.h"
 #include "clang/Basic/TargetInfo.h"
 #include "llvm/ADT/StringExtras.h"
@@ -684,6 +685,7 @@ const RecordDecl *ASTContext::addRecordToClass(const ObjCInterfaceDecl *D) {
 void ASTContext::setFieldDecl(const ObjCInterfaceDecl *OI,
                               const ObjCIvarDecl *Ivar,
                               const ObjCIvarRefExpr *MRef) {
+  assert(MRef->getDecl() == Ivar);
   ASTFieldForIvarRef[MRef] = OI->lookupFieldDeclForIvar(*this, Ivar);
 }
 
diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index 2bbb15f017..b5cd36061f 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -1086,6 +1086,7 @@ LValue CGObjCGNU::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
                                        const ObjCIvarDecl *Ivar,
                                        const FieldDecl *Field,
                                        unsigned CVRQualifiers) {
+  assert(Field == ObjectTy->getAsObjCInterfaceType()->getDecl()->lookupFieldDeclForIvar(CGM.getContext(), Ivar));
   if (Ivar->isBitField()) 
     return CGF.EmitLValueForBitfield(BaseValue, const_cast<FieldDecl *>(Field), 
                                  CVRQualifiers);
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index d1623075d5..3b5e0c5504 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -2368,6 +2368,7 @@ LValue CGObjCMac::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
                                        const ObjCIvarDecl *Ivar,
                                        const FieldDecl *Field,
                                        unsigned CVRQualifiers) {
+  assert(Field == ObjectTy->getAsObjCInterfaceType()->getDecl()->lookupFieldDeclForIvar(CGM.getContext(), Ivar));
   if (Ivar->isBitField())
     return CGF.EmitLValueForBitfield(BaseValue, const_cast<FieldDecl *>(Field),
                                      CVRQualifiers);
@@ -4888,6 +4889,7 @@ LValue CGObjCNonFragileABIMac::EmitObjCValueForIvar(
                                              const ObjCIvarDecl *Ivar,
                                              const FieldDecl *Field,
                                              unsigned CVRQualifiers) {
+  assert(Field == ObjectTy->getAsObjCInterfaceType()->getDecl()->lookupFieldDeclForIvar(CGM.getContext(), Ivar));
   assert(ObjectTy->isObjCInterfaceType() && 
          "CGObjCNonFragileABIMac::EmitObjCValueForIvar");
   ObjCInterfaceDecl *ID = ObjectTy->getAsObjCInterfaceType()->getDecl();
-- 
2.50.1