Only emit the getter and setter names if they're not the default

synthesized ones. Reasonable debug info size reduction for objc.

rdar://11179756

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154129 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CGDebugInfo.cpp

@@ -1327,10 +1327,14 @@ llvm::DIType CGDebugInfo::CreateType(const ObjCInterfaceType *Ty,
     SourceLocation Loc = PD->getLocation();
     llvm::DIFile PUnit = getOrCreateFile(Loc);
     unsigned PLine = getLineNumber(Loc);
+    ObjCMethodDecl *Getter = PD->getGetterMethodDecl();
+    ObjCMethodDecl *Setter = PD->getSetterMethodDecl();
     llvm::MDNode *PropertyNode =
       DBuilder.createObjCProperty(PD->getName(),
 				  PUnit, PLine,
+                                  (Getter && Getter->isImplicit()) ? "" :
                                   getSelectorName(PD->getGetterName()),
+                                  (Setter && Setter->isImplicit()) ? "" :
                                   getSelectorName(PD->getSetterName()),
                                   PD->getPropertyAttributes(),
 				  getOrCreateType(PD->getType(), PUnit));
@@ -1388,13 +1392,17 @@ llvm::DIType CGDebugInfo::CreateType(const ObjCInterfaceType *Ty,
 	  SourceLocation Loc = PD->getLocation();
 	  llvm::DIFile PUnit = getOrCreateFile(Loc);
 	  unsigned PLine = getLineNumber(Loc);
-	  PropertyNode =
+          ObjCMethodDecl *Getter = PD->getGetterMethodDecl();
-	    DBuilder.createObjCProperty(PD->getName(),
+          ObjCMethodDecl *Setter = PD->getSetterMethodDecl();
-					PUnit, PLine,
+          PropertyNode =
+            DBuilder.createObjCProperty(PD->getName(),
+                                        PUnit, PLine,
+                                        (Getter && Getter->isImplicit()) ? "" :
                                         getSelectorName(PD->getGetterName()),
+                                        (Setter && Setter->isImplicit()) ? "" :
                                         getSelectorName(PD->getSetterName()),
-					PD->getPropertyAttributes(),
+                                        PD->getPropertyAttributes(),
-					getOrCreateType(PD->getType(),PUnit));
+                                        getOrCreateType(PD->getType(), PUnit));
         }
       }
     }

test/CodeGenObjC/debug-info-property.m

@@ -1,8 +1,6 @@
 // RUN: %clang_cc1 -masm-verbose -S -g %s -o - | FileCheck %s
 
 // CHECK: AT_APPLE_property_name
-// CHECK: AT_APPLE_property_getter
-// CHECK: AT_APPLE_property_setter
 // CHECK: AT_APPLE_property_attribute
 // CHECK: AT_APPLE_property
 @interface I1 {

test/CodeGenObjC/debug-info-property3.m

@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -S -emit-llvm -g %s -o - | FileCheck %s
 
-// CHECK: metadata !"p1", metadata !6, i32 5, metadata !"p1", metadata !"setP1:", i32 2316, metadata !9} ; [ DW_TAG_APPLE_property ]
+// CHECK: metadata !"p1", metadata !6, i32 5, metadata !"", metadata !"", i32 2316, metadata !9} ; [ DW_TAG_APPLE_property ]
 @interface I1
 @property int p1;
 @end

test/CodeGenObjC/debug-info-property4.m

@@ -1,8 +1,6 @@
 // RUN: %clang_cc1 -fobjc-default-synthesize-properties -masm-verbose -S -g %s -o - | FileCheck %s
 
 // CHECK: AT_APPLE_property_name
-// CHECK: AT_APPLE_property_getter
-// CHECK: AT_APPLE_property_setter
 // CHECK: AT_APPLE_property_attribute
 // CHECK: AT_APPLE_property