r274628 - Include debug info for nested structs and classes

Adrian McCarthy via cfe-commits cfe-commits at lists.llvm.org
Wed Jul 6 07:46:42 PDT 2016


Author: amccarth
Date: Wed Jul  6 09:46:42 2016
New Revision: 274628

URL: http://llvm.org/viewvc/llvm-project?rev=274628&view=rev
Log:
Include debug info for nested structs and classes

This includes nested types in the member list, even if there are no members of that type. Note that structs and classes have themselves as an "implicit struct" as the first member, so we skip implicit ones.

Differential Revision: http://reviews.llvm.org/D21705

Modified:
    cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
    cfe/trunk/lib/CodeGen/CGDebugInfo.h
    cfe/trunk/test/CodeGenCXX/debug-info-dup-fwd-decl.cpp
    cfe/trunk/test/CodeGenCXX/debug-info-indirect-field-decl.cpp
    cfe/trunk/test/CodeGenCXX/debug-info-ms-abi.cpp

Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.cpp?rev=274628&r1=274627&r2=274628&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp Wed Jul  6 09:46:42 2016
@@ -1095,6 +1095,13 @@ void CGDebugInfo::CollectRecordNormalFie
   elements.push_back(FieldType);
 }
 
+void CGDebugInfo::CollectRecordNestedRecord(
+    const RecordDecl *RD, SmallVectorImpl<llvm::Metadata *> &elements) {
+  QualType Ty = CGM.getContext().getTypeDeclType(RD);
+  llvm::DIType *nestedType = getOrCreateType(Ty, getOrCreateMainFile());
+  elements.push_back(nestedType);
+}
+
 void CGDebugInfo::CollectRecordFields(
     const RecordDecl *record, llvm::DIFile *tunit,
     SmallVectorImpl<llvm::Metadata *> &elements,
@@ -1131,6 +1138,9 @@ void CGDebugInfo::CollectRecordFields(
 
         // Bump field number for next field.
         ++fieldNo;
+      } else if (const auto *nestedRec = dyn_cast<CXXRecordDecl>(I)) {
+        if (!nestedRec->isImplicit() && nestedRec->getDeclContext() == record)
+          CollectRecordNestedRecord(nestedRec, elements);
       }
   }
 }
@@ -3633,8 +3643,8 @@ void CGDebugInfo::EmitUsingDirective(con
   if (CGM.getCodeGenOpts().getDebugInfo() < codegenoptions::LimitedDebugInfo)
     return;
   const NamespaceDecl *NSDecl = UD.getNominatedNamespace();
-  if (!NSDecl->isAnonymousNamespace() || 
-      CGM.getCodeGenOpts().DebugExplicitImport) { 
+  if (!NSDecl->isAnonymousNamespace() ||
+      CGM.getCodeGenOpts().DebugExplicitImport) {
     DBuilder.createImportedModule(
         getCurrentContextDescriptor(cast<Decl>(UD.getDeclContext())),
         getOrCreateNameSpace(NSDecl),

Modified: cfe/trunk/lib/CodeGen/CGDebugInfo.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDebugInfo.h?rev=274628&r1=274627&r2=274628&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDebugInfo.h (original)
+++ cfe/trunk/lib/CodeGen/CGDebugInfo.h Wed Jul  6 09:46:42 2016
@@ -254,6 +254,8 @@ class CGDebugInfo {
                                 llvm::DIFile *F,
                                 SmallVectorImpl<llvm::Metadata *> &E,
                                 llvm::DIType *RecordTy, const RecordDecl *RD);
+  void CollectRecordNestedRecord(const RecordDecl *RD,
+                                 SmallVectorImpl<llvm::Metadata *> &E);
   void CollectRecordFields(const RecordDecl *Decl, llvm::DIFile *F,
                            SmallVectorImpl<llvm::Metadata *> &E,
                            llvm::DICompositeType *RecordTy);

Modified: cfe/trunk/test/CodeGenCXX/debug-info-dup-fwd-decl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-dup-fwd-decl.cpp?rev=274628&r1=274627&r2=274628&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-dup-fwd-decl.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/debug-info-dup-fwd-decl.cpp Wed Jul  6 09:46:42 2016
@@ -19,6 +19,6 @@ protected:
 
 Test t;
 
-// CHECK: !DIDerivedType(tag: DW_TAG_pointer_type
 // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "data"
+// CHECK: !DIDerivedType(tag: DW_TAG_pointer_type
 // CHECK-NOT: !DICompositeType(tag: DW_TAG_structure_type, name: "data"

Modified: cfe/trunk/test/CodeGenCXX/debug-info-indirect-field-decl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-indirect-field-decl.cpp?rev=274628&r1=274627&r2=274628&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-indirect-field-decl.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/debug-info-indirect-field-decl.cpp Wed Jul  6 09:46:42 2016
@@ -8,18 +8,18 @@ template <class T, int T::*ptr> class Fo
 struct Bar {
   int i1;
   // CHECK: ![[INT:[0-9]+]] = !DIBasicType(name: "int"
-  // CHECK: !DIDerivedType(tag: DW_TAG_member, scope:
-  // CHECK-SAME:           line: [[@LINE+4]]
-  // CHECK-SAME:           baseType: ![[UNION:[0-9]+]]
-  // CHECK-SAME:           size: 32, align: 32, offset: 32
-  // CHECK: ![[UNION]] = distinct !DICompositeType(tag: DW_TAG_union_type,{{.*}} identifier: "_ZTSN3BarUt_E")
+  // CHECK: ![[UNION:[0-9]+]] = distinct !DICompositeType(tag: DW_TAG_union_type,{{.*}} identifier: "_ZTSN3BarUt_E")
   union {
     // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "i2",
-    // CHECK-SAME:           line: [[@LINE+5]]
+    // CHECK-SAME:           line: [[@LINE+9]]
     // CHECK-SAME:           baseType: ![[INT]]
     // CHECK-SAME:           size: 32, align: 32
     // CHECK-NOT:            offset:
     // CHECK-SAME:           ){{$}}
+    // CHECK: !DIDerivedType(tag: DW_TAG_member, scope:
+    // CHECK-SAME:           line: [[@LINE-8]]
+    // CHECK-SAME:           baseType: ![[UNION]]
+    // CHECK-SAME:           size: 32, align: 32, offset: 32
     int i2;
   };
 };

Modified: cfe/trunk/test/CodeGenCXX/debug-info-ms-abi.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/debug-info-ms-abi.cpp?rev=274628&r1=274627&r2=274628&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/debug-info-ms-abi.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/debug-info-ms-abi.cpp Wed Jul  6 09:46:42 2016
@@ -14,6 +14,9 @@ Foo::Nested n;
 // CHECK: ![[Foo:[^ ]*]] = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo",
 // CHECK-SAME: identifier: ".?AUFoo@@"
 
+// CHECK: distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Nested",
+// CHECK-SAME: identifier: ".?AUNested at Foo@@"
+
 // CHECK: !DISubprogram(name: "f",
 // CHECK-SAME: containingType: ![[Foo]], virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0,
 // CHECK-SAME: flags: DIFlagPrototyped | DIFlagIntroducedVirtual,
@@ -25,6 +28,3 @@ Foo::Nested n;
 // CHECK: !DISubprogram(name: "h",
 // CHECK-SAME: containingType: ![[Foo]], virtuality: DW_VIRTUALITY_virtual, virtualIndex: 2,
 // CHECK-SAME: flags: DIFlagPrototyped | DIFlagIntroducedVirtual,
-
-// CHECK: distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Nested",
-// CHECK-SAME: identifier: ".?AUNested at Foo@@"




More information about the cfe-commits mailing list