Change location information for synthesized properties to be at the

property file/line rather than the @synthesize file/line. Avoids
some nasty confusing-ness with conflating the file from the scope
and the line from the original declaration.

Update a couple of testcases accordingly since I had to change
that we actually use the passed in location in EmitFunctionStart.

Fixes rdar://11026482

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153714 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGDebugInfo.cpp

@@ -1969,9 +1969,11 @@ void CGDebugInfo::EmitFunctionStart(GlobalDecl GD, QualType FnType,
   FnBeginRegionCount.push_back(LexicalBlockStack.size());
 
   const Decl *D = GD.getDecl();
+  // Use the location of the declaration.
+  SourceLocation Loc = D->getLocation();
   
   unsigned Flags = 0;
-  llvm::DIFile Unit = getOrCreateFile(CurLoc);
+  llvm::DIFile Unit = getOrCreateFile(Loc);
   llvm::DIDescriptor FDContext(Unit);
   llvm::DIArray TParamsArray;
   if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
@@ -2015,10 +2017,7 @@ void CGDebugInfo::EmitFunctionStart(GlobalDecl GD, QualType FnType,
   if (!Name.empty() && Name[0] == '\01')
     Name = Name.substr(1);
 
-  // It is expected that CurLoc is set before using EmitFunctionStart.
-  // Usually, CurLoc points to the left bracket location of compound
-  // statement representing function body.
-  unsigned LineNo = getLineNumber(CurLoc);
+  unsigned LineNo = getLineNumber(Loc);
   if (D->isImplicit())
     Flags |= llvm::DIDescriptor::FlagArtificial;
   llvm::DISubprogram SPDecl = getFunctionDeclaration(D);

lib/CodeGen/CGObjC.cpp

@@ -708,7 +708,7 @@ void CodeGenFunction::GenerateObjCGetter(ObjCImplementationDecl *IMP,
   const ObjCPropertyDecl *PD = PID->getPropertyDecl();
   ObjCMethodDecl *OMD = PD->getGetterMethodDecl();
   assert(OMD && "Invalid call to generate getter (empty method)");
-  StartObjCMethod(OMD, IMP->getClassInterface(), PID->getLocStart());
+  StartObjCMethod(OMD, IMP->getClassInterface(), OMD->getLocStart());
 
   generateObjCGetterBody(IMP, PID, AtomicHelperFn);
 
@@ -1216,7 +1216,7 @@ void CodeGenFunction::GenerateObjCSetter(ObjCImplementationDecl *IMP,
   const ObjCPropertyDecl *PD = PID->getPropertyDecl();
   ObjCMethodDecl *OMD = PD->getSetterMethodDecl();
   assert(OMD && "Invalid call to generate setter (empty method)");
-  StartObjCMethod(OMD, IMP->getClassInterface(), PID->getLocStart());
+  StartObjCMethod(OMD, IMP->getClassInterface(), OMD->getLocStart());
 
   generateObjCSetterBody(IMP, PID, AtomicHelperFn);
 

test/CodeGenObjC/debug-info-block-helper.m

@@ -2,7 +2,7 @@
 // RUN: %clang_cc1 -emit-llvm -fblocks -g -triple x86_64-apple-darwin10 -fobjc-fragile-abi %s -o - | FileCheck %s
 extern void foo(void(^)(void));
 
-// CHECK: !40 = metadata !{i32 {{.*}}, i32 0, metadata !10, metadata !"__destroy_helper_block_", metadata !"__destroy_helper_block_", metadata !"", metadata !10, i32 24, metadata !41, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i8*)* @__destroy_helper_block_, null, null, metadata !43} ; [ DW_TAG_subprogram ]
+// CHECK: !40 = metadata !{i32 {{.*}}, i32 0, metadata !25, metadata !"__destroy_helper_block_", metadata !"__destroy_helper_block_", metadata !"", metadata !25, i32 24, metadata !41, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, void (i8*)* @__destroy_helper_block_, null, null, metadata !43} ; [ DW_TAG_subprogram ]
 
 @interface NSObject {
   struct objc_object *isa;

test/CodeGenObjC/debug-property-synth.m

@@ -16,4 +16,5 @@ int main() {
   return 0;
 }
 
-// CHECK:       .loc    2 10 0
+// FIXME: Make this test ir files.
+// CHECK:       .loc    2 6 0