[AST] Build recovery expressions by default for C++.

[hokein]

Summary

Reland https://reviews.llvm.org/D76696.
All known crashes have been fixed, another attemption.

Plan:
we have rolled out this to a subset of internal users, I'd wait for one
or two weeks to make sure no new crashes.

[hokein]

fix clangd test.

[hokein]

@ebevhan, @hubert.reinterpretcast, the patch is based on fd7a34186137168064ffe2ca536823559b92d939, it should contain all the fixes.
it would be nice if you can test it again in your downstream clang. Thanks!

[hokein]

rebase

[hokein]

rebase.

[hubert.reinterpretcast]

In D78350#1988416, @hokein wrote:

@ebevhan, @hubert.reinterpretcast, the patch is based on fd7a34186137168064ffe2ca536823559b92d939, it should contain all the fixes.
it would be nice if you can test it again in your downstream clang. Thanks!

Got it. I'll put together a build.

[hokein]

In D78350#2006469, @hubert.reinterpretcast wrote:

In D78350#1988416, @hokein wrote:

@ebevhan, @hubert.reinterpretcast, the patch is based on fd7a34186137168064ffe2ca536823559b92d939, it should contain all the fixes.
it would be nice if you can test it again in your downstream clang. Thanks!

Got it. I'll put together a build.

Thank you! Look forward to the result. The patch should work on the latest master (b73290be9fa413d8bc426512cdf4fa01bc005954).

clang/test/CXX/class.access/p4.cpp

1

for review, this reverts the changes introduced in https://github.com/llvm/llvm-project/commit/9657385960350150b77ed652175b4c3801abd7fa.

clang/test/CXX/special/class.ctor/p5-0x.cpp

1

for review, this reverts the changes introduced in https://github.com/llvm/llvm-project/commit/9657385960350150b77ed652175b4c3801abd7fa.

clang/test/CXX/stmt.stmt/stmt.iter/stmt.ranged/p1.cpp

23

this reverts the changes introduced in https://github.com/llvm/llvm-project/commit/89d9912cbf45068770ac8c1e2ef97b74c3b662ab.

clang/test/SemaCXX/constant-expression-cxx11.cpp

880

This reverts the changes introduced in https://github.com/llvm/llvm-project/commit/89d9912cbf45068770ac8c1e2ef97b74c3b662ab.

clang/test/SemaCXX/cxx0x-deleted-default-ctor.cpp

1

This reverts the changes introduced in https://github.com/llvm/llvm-project/commit/9657385960350150b77ed652175b4c3801abd7fa.

clang/test/SemaCXX/for-range-dereference.cpp

88

This reverted the changes in https://github.com/llvm/llvm-project/commit/89d9912cbf45068770ac8c1e2ef97b74c3b662ab,

clang/test/SemaCXX/virtual-base-used.cpp

43

This reverts the changes introduced in https://github.com/llvm/llvm-project/commit/9657385960350150b77ed652175b4c3801abd7fa.

clang/test/SemaObjCXX/arc-0x.mm

118

This reverts the changes introduced in https://github.com/llvm/llvm-project/commit/9657385960350150b77ed652175b4c3801abd7fa.

[hokein]

rebase

[hubert.reinterpretcast]

In D78350#2007065, @hokein wrote:

In D78350#2006469, @hubert.reinterpretcast wrote:

Got it. I'll put together a build.

Thank you! Look forward to the result. The patch should work on the latest master (b73290be9fa413d8bc426512cdf4fa01bc005954).

Looks clean on my end.

[rsmith]

clang/include/clang/Basic/LangOptions.def

151

Does this work? I would expect that we set all the options to the defaults at the same time, so this just sets this option to 0 (the default for CPlusPlus). If so, it'd be clearer to explicitly write that default here.

[hokein]

In D78350#2009345, @hubert.reinterpretcast wrote:

In D78350#2007065, @hokein wrote:

In D78350#2006469, @hubert.reinterpretcast wrote:

Got it. I'll put together a build.

Thank you! Look forward to the result. The patch should work on the latest master (b73290be9fa413d8bc426512cdf4fa01bc005954).

Looks clean on my end.

Great, thanks!

clang/include/clang/Basic/LangOptions.def

151

I'm following the scheme of other fields, e.g. WChar, the real initialization is done in CompilerInvocation.cpp.

I think writing CPlusPlus is a bit clearer here, which indicates this option is associated with CPlusPlus flag.

[sammccall]

Code LG, let's chat before landing though - want to understand the state of the internal testing.

clang/include/clang/Basic/LangOptions.def

151

I think I suggested this in the past (based on precedent) but agree with Richard it's probably more confusing than enlightening.

clang/lib/Frontend/CompilerInvocation.cpp

2892

you could add a comment here like "Recovery AST still heavily relies on dependent-type machinery" or something.

[hokein]

rebase to master

[hokein]

rebase to master.

[hokein]

rebase to master and address comments.

[hokein]

ok, the current status seems quite stable now. We rolled it out to all our internal users for a while, didn't see big crashes. I'm going to land it.

[hokein]

rebase

clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp

int main() {
       // Macro expansions.
       $p^FOO 10, ^ );
     })cpp",
                                  // Macro arguments.
                                  R"cpp(
     int foo(int a, int b, int c);
     int main() {
     #define ID(X) X
-      ID(foo $p^( foo(10), ^ ))
+      // FIXME: figure out why ID(foo (foo(10), )) doesn't work when preserving
+      // the recovery expression.
+      ID(foo $p^( 10, ^ ))
     })cpp"};
 
   for (auto Test : Tests) {
     Annotations Code(Test);
     EXPECT_EQ(signatures(Code.code(), Code.point()).argListStart,
               Code.point("p"))
         << "Test source:" << Test;
   }

clang/include/clang/Basic/LangOptions.def

 LANGOPT(NoMathBuiltin     , 1, 0, "disable math builtin functions")
 LANGOPT(GNUAsm            , 1, 1, "GNU-style inline assembly")
 LANGOPT(Coroutines        , 1, 0, "C++20 coroutines")
 LANGOPT(DllExportInlines  , 1, 1, "dllexported classes dllexport inline methods")
 LANGOPT(RelaxedTemplateTemplateArgs, 1, 0, "C++17 relaxed matching of template template arguments")
 
 LANGOPT(DoubleSquareBracketAttributes, 1, 0, "'[[]]' attributes extension for all language standard modes")
 
-COMPATIBLE_LANGOPT(RecoveryAST, 1, 0, "Preserve expressions in AST when encountering errors")
+COMPATIBLE_LANGOPT(RecoveryAST, 1, CPlusPlus, "Preserve expressions in AST when encountering errors")
 
 BENIGN_LANGOPT(ThreadsafeStatics , 1, 1, "thread-safe static initializers")
 LANGOPT(POSIXThreads      , 1, 0, "POSIX thread support")
 LANGOPT(Blocks            , 1, 0, "blocks extension to C")
 BENIGN_LANGOPT(EmitAllDecls      , 1, 0, "emitting all declarations")
 LANGOPT(MathErrno         , 1, 1, "errno in math functions")
 BENIGN_LANGOPT(HeinousExtensions , 1, 0, "extensions that we really don't like and may be ripped out at any time")
 LANGOPT(Modules           , 1, 0, "modules semantics")

clang/lib/Frontend/CompilerInvocation.cpp

if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
     Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
                                                  << A->getValue();
     Opts.NewAlignOverride = 0;
   }
   Opts.ConceptSatisfactionCaching =
       !Args.hasArg(OPT_fno_concept_satisfaction_caching);
   if (Args.hasArg(OPT_fconcepts_ts))
     Diags.Report(diag::warn_fe_concepts_ts_flag);
   Opts.RecoveryAST =
-      Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, false);
+      Args.hasFlag(OPT_frecovery_ast, OPT_fno_recovery_ast, Opts.CPlusPlus);
   Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
   Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
   Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
   Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
   Opts.InstantiationDepth =
       getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
   Opts.ArrowDepth =
       getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);

clang/test/AST/ast-dump-openmp-begin-declare-variant_namespace_1.cpp

 // CHECK-NEXT: |           `-ImplicitCastExpr [[ADDR_61:0x[a-z0-9]*]] <line:42:1> 'int (*)({{.*}})' <FunctionToPointerDecay>
 // CHECK-NEXT: |             `-DeclRefExpr [[ADDR_19]] <col:1> 'int ({{.*}})' Function [[ADDR_20]] 'baz[implementation={vendor(llvm)}]' 'int ({{.*}})'
 // CHECK-NEXT: |-FunctionDecl [[ADDR_62:0x[a-z0-9]*]] <line:53:1, line:59:1> line:53:5 used implicit2 'int ({{.*}})'
 // CHECK-NEXT: | `-CompoundStmt [[ADDR_63:0x[a-z0-9]*]] <col:17, line:59:1>
 // CHECK-NEXT: |   |-DeclStmt [[ADDR_64:0x[a-z0-9]*]] <line:54:3, col:20>
 // CHECK-NEXT: |   | `-UsingDirectiveDecl [[ADDR_65:0x[a-z0-9]*]] <col:3, col:19> col:19 Namespace [[ADDR_0]] 'A'
 // CHECK-NEXT: |   |-DeclStmt [[ADDR_66:0x[a-z0-9]*]] <line:55:3, col:20>
 // CHECK-NEXT: |   | `-UsingDirectiveDecl [[ADDR_67:0x[a-z0-9]*]] <col:3, col:19> col:19 Namespace [[ADDR_5]] 'B'
+// CHECK-NEXT: |   |-RecoveryExpr {{.*}} <line:57:3, col:7>
+// CHECK-NEXT: |   | `-UnresolvedLookupExpr {{.*}} <col:3>
 // CHECK-NEXT: |   `-ReturnStmt [[ADDR_68:0x[a-z0-9]*]] <line:58:3, col:22>
 // CHECK-NEXT: |     `-BinaryOperator [[ADDR_69:0x[a-z0-9]*]] <col:10, col:22> 'int' '+'
 // CHECK-NEXT: |       |-PseudoObjectExpr [[ADDR_70:0x[a-z0-9]*]] <col:10, col:14> 'int'
 // CHECK-NEXT: |       | |-CallExpr [[ADDR_71:0x[a-z0-9]*]] <col:10, col:14> 'int'
 // CHECK-NEXT: |       | | `-ImplicitCastExpr [[ADDR_72:0x[a-z0-9]*]] <col:10> 'int (*)({{.*}})' <FunctionToPointerDecay>
 // CHECK-NEXT: |       | |   `-DeclRefExpr [[ADDR_73:0x[a-z0-9]*]] <col:10> 'int ({{.*}})' {{.*}}Function [[ADDR_6]] 'bar' 'int ({{.*}})'
 // CHECK-NEXT: |       | `-CallExpr [[ADDR_74:0x[a-z0-9]*]] <line:34:1, line:58:14> 'int'
 // CHECK-NEXT: |       |   `-ImplicitCastExpr [[ADDR_75:0x[a-z0-9]*]] <line:34:1> 'int (*)({{.*}})' <FunctionToPointerDecay>

 // CHECK-NEXT:   `-CompoundStmt [[ADDR_83:0x[a-z0-9]*]] <col:12, line:64:1>
 // CHECK-NEXT:     `-ReturnStmt [[ADDR_84:0x[a-z0-9]*]] <line:63:3, col:34>
 // CHECK-NEXT:       `-BinaryOperator [[ADDR_85:0x[a-z0-9]*]] <col:10, col:34> 'int' '+'
 // CHECK-NEXT:         |-CallExpr [[ADDR_86:0x[a-z0-9]*]] <col:10, col:20> 'int'
 // CHECK-NEXT:         | `-ImplicitCastExpr [[ADDR_87:0x[a-z0-9]*]] <col:10> 'int (*)({{.*}})' <FunctionToPointerDecay>
 // CHECK-NEXT:         |   `-DeclRefExpr [[ADDR_88:0x[a-z0-9]*]] <col:10> 'int ({{.*}})' {{.*}}Function [[ADDR_42]] 'explicit1' 'int ({{.*}})'
 // CHECK-NEXT:         `-CallExpr [[ADDR_89:0x[a-z0-9]*]] <col:24, col:34> 'int'
 // CHECK-NEXT:           `-ImplicitCastExpr [[ADDR_90:0x[a-z0-9]*]] <col:24> 'int (*)({{.*}})' <FunctionToPointerDecay>
-// CHECK-NEXT:             `-DeclRefExpr [[ADDR_91:0x[a-z0-9]*]] <col:24> 'int ({{.*}})' {{.*}}Function [[ADDR_62]] 'implicit2' 'int ({{.*}})'
+// CHECK-NEXT:             `-DeclRefExpr [[ADDR_91:0x[a-z0-9]*]] <col:24> 'int ({{.*}})' {{.*}}Function [[ADDR_62]] 'implicit2' 'int ({{.*}})'
 No newline at end of file

clang/test/CXX/class.access/p4.cpp

 // RUN: %clang_cc1 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++98 %s
 // RUN: %clang_cc1 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++11 %s
 // RUN: %clang_cc1 -triple %itanium_abi_triple -fcxx-exceptions -fexceptions -fsyntax-only -verify %s
 // RUN: %clang_cc1 -triple x86_64-windows-msvc -fms-compatibility-version=19 -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++98 %s
 // RUN: %clang_cc1 -triple x86_64-windows-msvc -fms-compatibility-version=19 -fcxx-exceptions -fexceptions -fsyntax-only -verify -std=c++11 %s
 // RUN: %clang_cc1 -triple x86_64-windows-msvc -fms-compatibility-version=19 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s
 
 // C++0x [class.access]p4:
 
class Derived2 : // expected-error {{inherited virtual base class 'Base<2>' has private destructor}} \
     Base<0>,  // expected-error {{base class 'Base<0>' has private destructor}}
     virtual Base<1>, // expected-error {{base class 'Base<1>' has private destructor}}
     Base2, // expected-error {{base class 'test3::Base2' has private destructor}}
     virtual Base3
   {
     ~Derived2() {}
   };
 
   class Derived3 :
-    Base<0>, // expected-note 2{{deleted because base class 'Base<0>' has an inaccessible destructor}}
+    Base<0>, // expected-note {{deleted because base class 'Base<0>' has an inaccessible destructor}}
     virtual Base<1>,
     Base2,
     virtual Base3
   {};
-  Derived3 d3; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+  Derived3 d3; // expected-error {{implicitly-deleted default constructor}}
 #elif __cplusplus >= 201103L && defined(_MSC_VER)
-  template <unsigned N> class Base { ~Base(); }; // expected-note 9{{declared private here}}
+  template <unsigned N> class Base { ~Base(); }; // expected-note 6{{declared private here}}
   // expected-error@+1 {{inherited virtual base class 'Base<2>' has private destructor}}
   class Base2 : virtual Base<2> { ~Base2(); }; // expected-note 1{{declared private here}}
   // expected-error@+1 {{inherited virtual base class 'Base<3>' has private destructor}}
   class Base3 : virtual Base<3> { public: ~Base3(); };
 
   // These don't cause diagnostics because we don't need the destructor.
   class Derived0 : Base<0> { ~Derived0(); };
   class Derived1 : Base<1> { };
 
   class Derived2 : // expected-error {{inherited virtual base class 'Base<2>' has private destructor}} \
                    // expected-error {{inherited virtual base class 'Base<3>' has private destructor}}
     Base<0>,  // expected-error {{base class 'Base<0>' has private destructor}}
     virtual Base<1>, // expected-error {{base class 'Base<1>' has private destructor}}
     Base2, // expected-error {{base class 'test3::Base2' has private destructor}}
     virtual Base3
   {
     // expected-note@+2 {{in implicit destructor for 'test3::Base2' first required here}}
     // expected-note@+1 {{in implicit destructor for 'test3::Base3' first required here}}
     ~Derived2() {}
   };
 
-  class Derived3 : // expected-error 3{{has private destructor}}
+  class Derived3 :
     Base<0>, // expected-note {{deleted because base class 'Base<0>' has an inaccessible destructor}}
-             // expected-note@-1 {{destructor of 'Derived3' is implicitly deleted}}
     virtual Base<1>,
     Base2,
     virtual Base3
   {};
-  Derived3 d3; // expected-error {{implicitly-deleted default constructor}} expected-error {{use a deleted function}}
-               // expected-note@-1 {{implicit destructor for}}
+  Derived3 d3; // expected-error {{implicitly-deleted default constructor}}
 #else
 #error "missing case of MSVC cross C++ versions"
 #endif
 }
 
 // Conversion functions.
 namespace test4 {
   class Base {

clang/test/CXX/special/class.ctor/p5-0x.cpp

 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 -Wno-defaulted-function-deleted
 
 struct DefaultedDefCtor1 {};
 struct DefaultedDefCtor2 { DefaultedDefCtor2() = default; };
 struct DeletedDefCtor { DeletedDefCtor() = delete; DeletedDefCtor(int); }; // expected-note {{explicitly marked deleted here}}
 class PrivateDefCtor { PrivateDefCtor() = default; public: PrivateDefCtor(int); };
-struct DeletedDtor { ~DeletedDtor() = delete; }; // expected-note 8{{explicitly marked deleted here}}
+struct DeletedDtor { ~DeletedDtor() = delete; }; // expected-note 4{{explicitly marked deleted here}}
 class PrivateDtor { ~PrivateDtor() = default; };
 class Friend {
   Friend() = default; ~Friend() = default;
   friend struct NotDeleted6c;
   friend struct NotDeleted7i;
   friend struct NotDeleted7j;
   friend struct NotDeleted7k;
 };

 struct NotDeleted6b { PrivateDefCtor a = 0; };
 NotDeleted6b nd6b;
 struct NotDeleted6c { Friend a; };
 NotDeleted6c nd6c;
 
 // - any direct or virtual base class or non-static data member has a type with
 // a destructor that is deleted or inaccessible from the defaulted default
 // constructor.
-struct Deleted7a : DeletedDtor {}; // expected-note 2{{because base class 'DeletedDtor' has a deleted destructor}}
-Deleted7a d7a; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7b : virtual DeletedDtor {}; // expected-note 2{{because base class 'DeletedDtor' has a deleted destructor}}
-Deleted7b d7b; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7c { DeletedDtor a; }; // expected-note 2{{because field 'a' has a deleted destructor}}
-Deleted7c d7c; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7d { DeletedDtor a = {}; }; // expected-note 2{{because field 'a' has a deleted destructor}}
-Deleted7d d7d; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7e : PrivateDtor {}; // expected-note 2{{base class 'PrivateDtor' has an inaccessible destructor}}
-Deleted7e d7e; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7f : virtual PrivateDtor {}; // expected-note 2{{base class 'PrivateDtor' has an inaccessible destructor}}
-Deleted7f d7f; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7g { PrivateDtor a; }; // expected-note 2{{field 'a' has an inaccessible destructor}}
-Deleted7g d7g; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct Deleted7h { PrivateDtor a = {}; }; // expected-note 2{{field 'a' has an inaccessible destructor}}
-Deleted7h d7h; // expected-error {{implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+struct Deleted7a : DeletedDtor {}; // expected-note {{because base class 'DeletedDtor' has a deleted destructor}}
+Deleted7a d7a; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7b : virtual DeletedDtor {}; // expected-note {{because base class 'DeletedDtor' has a deleted destructor}}
+Deleted7b d7b; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7c { DeletedDtor a; }; // expected-note {{because field 'a' has a deleted destructor}}
+Deleted7c d7c; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7d { DeletedDtor a = {}; }; // expected-note {{because field 'a' has a deleted destructor}}
+Deleted7d d7d; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7e : PrivateDtor {}; // expected-note {{base class 'PrivateDtor' has an inaccessible destructor}}
+Deleted7e d7e; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7f : virtual PrivateDtor {}; // expected-note {{base class 'PrivateDtor' has an inaccessible destructor}}
+Deleted7f d7f; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7g { PrivateDtor a; }; // expected-note {{field 'a' has an inaccessible destructor}}
+Deleted7g d7g; // expected-error {{implicitly-deleted default constructor}}
+struct Deleted7h { PrivateDtor a = {}; }; // expected-note {{field 'a' has an inaccessible destructor}}
+Deleted7h d7h; // expected-error {{implicitly-deleted default constructor}}
 struct NotDeleted7i : Friend {};
 NotDeleted7i d7i;
 struct NotDeleted7j : virtual Friend {};
 NotDeleted7j d7j;
 struct NotDeleted7k { Friend a; };
 NotDeleted7k d7k;
 
 

clang/test/CXX/stmt.stmt/stmt.iter/stmt.ranged/p1.cpp

 };
 
 namespace X {
   template<typename T>
     auto begin(T &&t) -> decltype(t.begin()) { return t.begin(); } // expected-note 2{{ignored: substitution failure}}
   template<typename T>
     auto end(T &&t) -> decltype(t.end()) { return t.end(); } // expected-note {{candidate template ignored: substitution failure [with T = }}
 
   template<typename T>
-    auto begin(T &&t) -> decltype(t.alt_begin()) { return t.alt_begin(); } // expected-note 2{{candidate template ignored: substitution failure [with T = }}
+    auto begin(T &&t) -> decltype(t.alt_begin()) { return t.alt_begin(); } // expected-note {{selected 'begin' template [with T = }} \
+                                                                           // expected-note 2{{candidate template ignored: substitution failure [with T = }}
   template<typename T>
     auto end(T &&t) -> decltype(t.alt_end()) { return t.alt_end(); } // expected-note {{candidate template ignored: substitution failure [with T = }}
 
   namespace inner {
     // These should never be considered.
     int begin(int);
     int end(int);
   }
 
   using namespace inner;
 
   struct A { // expected-note 2 {{candidate constructor}}
     A();
-    int *begin(); // expected-note {{selected 'begin' function with iterator type 'int *'}} expected-note {{'begin' declared here}}
+    int *begin(); // expected-note 3{{selected 'begin' function with iterator type 'int *'}} expected-note {{'begin' declared here}}
     int *end();
   };
 
   struct B {
     B();
     int *alt_begin();
     int *alt_end();
   };

clang/test/OpenMP/target_update_from_messages.cpp

struct S8 {
   void foo() {
 #pragma omp target update from(*this) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
     {}
 #pragma omp target update from(*(this->ptr)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(this->S->i+this->S->p)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(this->S->i+this->S->s6[0].pp)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(a+this->ptr)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(*(this->ptr)+a+this->ptr)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
-#pragma omp target update from(*(this+this)) // expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}} expected-error {{invalid operands to binary expression ('S8 *' and 'S8 *')}}
+#pragma omp target update from(*(this+this)) // expected-error {{invalid operands to binary expression ('S8 *' and 'S8 *')}}
   }
 };
 
 S3 h;
 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
 
 typedef int to;
 

 #pragma omp target update from(**(BB+y)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(m+*offset)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(**(*offset+BB)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(**(y+BB)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(*offset+m)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(**(-(*offset)+BB+*m)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(**(*(*(&offset))+BB-*m)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update from(*(x+*(y+*(**BB+BBB)+s7.i))) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
-#pragma omp target update from(*(m+(m))) // expected-error {{invalid operands to binary expression ('int *' and 'int *')}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
-#pragma omp target update from(*(1+y+y)) // expected-error {{indirection requires pointer operand ('int' invalid)}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
+#pragma omp target update from(*(m+(m))) // expected-error {{invalid operands to binary expression ('int *' and 'int *')}}
+#pragma omp target update from(*(1+y+y)) // expected-error {{indirection requires pointer operand ('int' invalid)}}
 #pragma omp target data map(to: s7.i)
   {
 #pragma omp target update from(s7.x)
   }
 
   return tmain<int, 3>(argc)+tmain<to, 4>(argc); // expected-note {{in instantiation of function template specialization 'tmain<int, 3>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<int, 4>' requested here}}
 }
 

clang/test/OpenMP/target_update_to_messages.cpp

struct S8 {
   void foo() {
 #pragma omp target update to(*this) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
     {}
 #pragma omp target update to(*(this->ptr)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(this->S->i+this->S->p)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(this->S->i+this->S->s6[0].pp)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(a+this->ptr)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(*(this->ptr)+a+this->ptr)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
-#pragma omp target update to(*(this+this)) // expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}} expected-error {{invalid operands to binary expression ('S8 *' and 'S8 *')}}
+#pragma omp target update to(*(this+this)) // expected-error {{invalid operands to binary expression ('S8 *' and 'S8 *')}}
     {}
   }
 };
 
 S3 h;
 #pragma omp threadprivate(h) // expected-note 2 {{defined as threadprivate or thread local}}
 
 typedef int from;

 #pragma omp target update to(**(BB+y)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(m+*offset)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(**(*offset+BB)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(**(y+BB)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(*offset+m)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(**(*offset+BB+*m)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(**(*(*(&offset))+BB+*m)) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
 #pragma omp target update to(*(x+*(y+*(**BB+BBB)+s7.i))) // le45-error {{expected expression containing only member accesses and/or array sections based on named variables}} le45-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
-#pragma omp target update to(*(m+(m))) // expected-error {{invalid operands to binary expression ('int *' and 'int *')}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
-#pragma omp target update to(*(1+y+y)) // expected-error {{indirection requires pointer operand ('int' invalid)}} expected-error {{expected at least one 'to' clause or 'from' clause specified to '#pragma omp target update'}}
+#pragma omp target update to(*(m+(m))) // expected-error {{invalid operands to binary expression ('int *' and 'int *')}}
+#pragma omp target update to(*(1+y+y)) // expected-error {{indirection requires pointer operand ('int' invalid)}}
   {}
   return tmain<int, 3>(argc)+tmain<from, 4>(argc); // expected-note {{in instantiation of function template specialization 'tmain<int, 3>' requested here}} expected-note {{in instantiation of function template specialization 'tmain<int, 4>' requested here}}
 }
 

clang/test/Parser/objcxx0x-lambda-expressions.mm

 // RUN: %clang_cc1 -fsyntax-only -verify -Wno-unused-value -Wno-c++1y-extensions -std=c++11 %s
 
 class C {
   id get(int);
 
   void f() {
     int foo, bar, baz;
 
     // fail to parse as a lambda introducer, so we get objc message parsing errors instead
     [foo,+] {}; // expected-error {{expected expression}}
 
     []; // expected-error {{expected body of lambda expression}}
     [=,foo+] {}; // expected-error {{expected ',' or ']' in lambda capture list}}
-    [&this] {}; // expected-error {{cannot take the address of an rvalue of type 'C *'}}
+    [&this] {}; // expected-error {{cannot take the address of an rvalue of type 'C *'}} \
+                // expected-error {{expected identifier}}
     [] {}; 
     [=] (int i) {}; 
     [&] (int) mutable -> void {}; 
     [foo,bar] () { return 3; }; 
     [=,&foo] () {}; 
     [this] () {}; 
 
     [foo(bar)] () {};
     [foo = bar] () {};
     [foo{bar}] () {};
     [foo = {bar}] () {}; // expected-error {{<initializer_list>}}
 
-    [foo(bar) baz] () {}; // expected-error {{called object type 'int' is not a function}}
+    [foo(bar) baz] () {}; // expected-error {{called object type 'int' is not a function}} \
+                          // expected-error {{expected ';'}}
     [foo(bar), baz] () {}; // ok
 
     [foo = bar baz]; // expected-warning {{receiver type 'int'}} expected-warning {{instance method '-baz'}}
 
     [get(bar) baz]; // expected-warning {{instance method '-baz'}}
     [get(bar), baz]; // expected-error {{expected body of lambda}}
 
     [foo = bar ++ baz]; // expected-warning {{receiver type 'int'}} expected-warning {{instance method '-baz'}}

clang/test/Parser/objcxx11-invalid-lambda.cpp

 // RUN: %clang_cc1 -fsyntax-only -verify -x objective-c++ -std=c++11 %s
 
-void foo() {  // expected-note {{to match this '{'}}
+void foo() {
   int bar;
   auto baz = [
-      bar(  // expected-note {{to match this '('}} expected-note {{to match this '('}}
+      bar(  // expected-note 2{{to match this '('}}\
+            // expected-warning {{captures are a C++14 extension}}
         foo_undeclared() // expected-error{{use of undeclared identifier 'foo_undeclared'}}
       /* ) */
-    ] () { };   // expected-error{{expected ')'}}
-}               // expected-error{{expected ')'}} expected-error {{expected ',' or ']'}} expected-error{{expected ';' at end of declaration}} expected-error{{expected '}'}}
+    ] () { };   // expected-error 2{{expected ')'}}
+}
 No newline at end of file

clang/test/SemaCXX/cast-conversion.cpp

-// RUN: %clang_cc1 -fsyntax-only -triple x86_64-unknown-unknown -verify %s -std=c++11
+// RUN: %clang_cc1 -fsyntax-only -triple x86_64-unknown-unknown -verify %s -std=c++11 -Wno-unused
 
 struct R {
   R(int);
 };
 
 struct A {
   A(R);
 };

clang/test/SemaCXX/constant-expression-cxx11.cpp

 static_assert(&ok2 == pok2, "");
 static_assert((Base2*)(Derived*)(Base*)pb1 == pok2, "");
 static_assert((Derived*)(Base*)pb1 == (Derived*)pok2, "");
 
 // Core issue 903: we do not perform constant evaluation when checking for a
 // null pointer in C++11. Just check for an integer literal with value 0.
 constexpr Base *nullB = 42 - 6 * 7; // expected-error {{cannot initialize a variable of type 'Class::Base *const' with an rvalue of type 'int'}}
 constexpr Base *nullB1 = 0;
-static_assert((Bottom*)nullB == 0, ""); // expected-error {{static_assert expression is not an integral constant expression}}
+static_assert((Bottom*)nullB == 0, "");
 static_assert((Derived*)nullB1 == 0, "");
 static_assert((void*)(Bottom*)nullB1 == (void*)(Derived*)nullB1, "");
 Base *nullB2 = '\0'; // expected-error {{cannot initialize a variable of type 'Class::Base *' with an rvalue of type 'char'}}
 Base *nullB3 = (0);
 Base *nullB4 = false; // expected-error {{cannot initialize a variable of type 'Class::Base *' with an rvalue of type 'bool'}}
 Base *nullB5 = ((0ULL));
 Base *nullB6 = 0.; // expected-error {{cannot initialize a variable of type 'Class::Base *' with an rvalue of type 'double'}}
 enum Null { kNull };

clang/test/SemaCXX/constructor-initializer.cpp

#if __cplusplus >= 201103L // C++11 or later
   // expected-note@-3 {{candidate constructor (the implicit move constructor) not viable}}
 #endif
   // expected-note@-5 {{candidate constructor (the implicit default constructor) not viable}}
 
   class B : public A {
   public:
     B(const String& s, int e=0) // expected-error {{unknown type name}} 
       : A(e), m_String(s) , m_ErrorStr(__null) {} // expected-error {{no matching constructor}} expected-error {{does not name}}
     B(const B& e)
-      : A(e), m_String(e.m_String), m_ErrorStr(__null) { // expected-error {{does not name}} \
+      : A(e), m_String(e.m_String), m_ErrorStr(__null) { // expected-error 2{{does not name}} \
       // expected-error {{no member named 'm_String' in 'test3::B'}}
     }
   };
 }
 
 // PR8075
 namespace PR8075 {
 

clang/test/SemaCXX/cxx0x-deleted-default-ctor.cpp

 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
 
 struct non_trivial {
   non_trivial();
   non_trivial(const non_trivial&);
   non_trivial& operator = (const non_trivial&);
   ~non_trivial();
 };
 
 union bad_union {
-  non_trivial nt; // expected-note {{non-trivial default constructor}} expected-note {{destructor of 'bad_union' is implicitly deleted}}
+  non_trivial nt; // expected-note {{non-trivial default constructor}}
 };
-bad_union u; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+bad_union u; // expected-error {{call to implicitly-deleted default constructor}}
 union bad_union2 { // expected-note {{all data members are const-qualified}}
   const int i;
 };
 bad_union2 u2; // expected-error {{call to implicitly-deleted default constructor}}
 
 struct bad_anon {
   union {
-    non_trivial nt; // expected-note {{non-trivial default constructor}} expected-note {{destructor of 'bad_anon' is implicitly deleted}}
+    non_trivial nt; // expected-note {{non-trivial default constructor}}
   };
 };
-bad_anon a; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+bad_anon a; // expected-error {{call to implicitly-deleted default constructor}}
 struct bad_anon2 {
   union { // expected-note {{all data members of an anonymous union member are const-qualified}}
     const int i;
   };
 };
 bad_anon2 a2; // expected-error {{call to implicitly-deleted default constructor}}
 
 // This would be great except that we implement
struct good_const {
   const non_trivial nt;
 };
 good_const gc;
 
 struct no_default {
   no_default() = delete; // expected-note 5{{deleted here}}
 };
 struct no_dtor {
-  ~no_dtor() = delete; // expected-note 4{{deleted here}}
+  ~no_dtor() = delete; // expected-note 2{{deleted here}}
 };
 
 struct bad_field_default {
   no_default nd; // expected-note {{field 'nd' has a deleted default constructor}}
 };
 bad_field_default bfd; // expected-error {{call to implicitly-deleted default constructor}}
 struct bad_base_default : no_default { // expected-note {{base class 'no_default' has a deleted default constructor}}
 };
 bad_base_default bbd; // expected-error {{call to implicitly-deleted default constructor}}
 
 struct bad_field_dtor {
-  no_dtor nd; // expected-note {{field 'nd' has a deleted destructor}} expected-note {{destructor of 'bad_field_dtor' is implicitly deleted }}
+  no_dtor nd; // expected-note {{field 'nd' has a deleted destructor}}
 };
-bad_field_dtor bfx; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-struct bad_base_dtor : no_dtor { // expected-note {{base class 'no_dtor' has a deleted destructor}} expected-note {{destructor of 'bad_base_dtor' is implicitly deleted}}
+bad_field_dtor bfx; // expected-error {{call to implicitly-deleted default constructor}}
+struct bad_base_dtor : no_dtor { // expected-note {{base class 'no_dtor' has a deleted destructor}}
 };
-bad_base_dtor bbx; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+bad_base_dtor bbx; // expected-error {{call to implicitly-deleted default constructor}}
 
 struct ambiguous_default {
   ambiguous_default();
   ambiguous_default(int = 2);
 };
 struct has_amb_field {
   ambiguous_default ad; // expected-note {{field 'ad' has multiple default constructors}}
 };

clang/test/SemaCXX/cxx1z-copy-omission.cpp

-// RUN: %clang_cc1 -std=c++1z -verify %s
+// RUN: %clang_cc1 -std=c++1z -verify -Wno-unused %s
 
 struct Noncopyable {
   Noncopyable();
   Noncopyable(const Noncopyable &) = delete; // expected-note 1+{{deleted}} expected-note 1+ {{not viable}}
   virtual ~Noncopyable();
 };
 struct Derived : Noncopyable {};
 struct NoncopyableAggr { // expected-note 3{{candidate}}
void test_expressions(bool b) {
   make_incomplete().*(int Incomplete::*)nullptr; // expected-error {{incomplete}}
   dynamic_cast<Incomplete&&>(make_incomplete()); // expected-error {{incomplete}}
   const_cast<Incomplete&&>(make_incomplete()); // expected-error {{incomplete}}
 
   sizeof(Indestructible{}); // expected-error {{deleted}}
   sizeof(make_indestructible()); // expected-error {{deleted}}
   sizeof(make_incomplete()); // expected-error {{incomplete}}
   typeid(Indestructible{}); // expected-error {{deleted}}
-  typeid(make_indestructible()); // expected-error {{deleted}}
-  typeid(make_incomplete()); // expected-error {{incomplete}}
+  typeid(make_indestructible()); // expected-error {{deleted}} \
+                                 // expected-error {{need to include <typeinfo>}}
+  typeid(make_incomplete()); // expected-error {{incomplete}} \
+                             // expected-error {{need to include <typeinfo>}}
 
   // FIXME: The first two cases here are now also valid in C++17 onwards.
   using I = decltype(Indestructible()); // expected-error {{deleted}}
   using I = decltype(Indestructible{}); // expected-error {{deleted}}
   using I = decltype(make_indestructible());
   using J = decltype(make_incomplete());
 
   Noncopyable cond1 = b ? Noncopyable() : make();

clang/test/SemaCXX/decltype-crash.cpp

 // RUN: %clang_cc1 -fsyntax-only -verify -Wc++11-compat -std=c++98 %s
 
 int& a();
 
 void f() {
-  decltype(a()) c; // expected-warning {{'decltype' is a keyword in C++11}} expected-error {{use of undeclared identifier 'decltype'}}
+  decltype(a()) c; // expected-warning {{'decltype' is a keyword in C++11}} \
+                   // expected-error {{use of undeclared identifier 'decltype'}} \
+                   // expected-error {{expected ';' after expression}} \
+                   // expected-error {{use of undeclared identifier 'c'}}
 }

clang/test/SemaCXX/for-range-dereference.cpp

expected-note {{when looking up 'end' function for range expression of type 'DeletedEnd'}}
 
   OverloadedStar OS;
   for (auto i : *OS) { }
 
   for (auto i : OS) { } // expected-error {{invalid range expression of type 'OverloadedStar'; did you mean to dereference it with '*'?}}
 
   for (Data *p : pt) { } // expected-error {{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
   // expected-error@-1 {{no viable conversion from 'Data' to 'Data *'}}
+  // expected-note@4 {{selected 'begin' function with iterator type 'Data *'}}
 }

clang/test/SemaCXX/varargs.cpp

void no_params(...) {
   int a;
   __builtin_va_start(ap, a); // expected-warning {{second argument to 'va_start' is not the last named parameter}}
 }
 
 // Reject this. The __builtin_va_start would execute in Foo's non-variadic
 // default ctor.
 void record_context(int a, ...) {
   struct Foo {
-    // expected-error@+1 {{'va_start' cannot be used outside a function}}
+    // expected-error@+2 {{'va_start' cannot be used outside a function}}
+    // expected-error@+1 {{default argument references parameter 'a'}}
     void meth(int a, int b = (__builtin_va_start(ap, a), 0)) {}
   };
 }
 
 #if __cplusplus >= 201103L
 // We used to have bugs identifying the correct enclosing function scope in a
 // lambda.
 

clang/test/SemaCXX/virtual-base-used.cpp

#if __cplusplus <= 199711L
   // expected-error@-2 {{field of type 'NoDestroy' has private destructor}}
 #ifdef MSABI
   // expected-error@-4 {{field of type 'NoDestroy' has private destructor}}
 #endif
 #else
   // expected-note@-7 {{destructor of 'B' is implicitly deleted because field 'x' has an inaccessible destructor}}
 #ifdef MSABI
   // expected-note@-9 {{default constructor of 'B' is implicitly deleted because field 'x' has an inaccessible destructor}}
-  // expected-note@-10 {{destructor of 'B' is implicitly deleted}}
 #endif
 #endif
 };
 
 struct D : public virtual B {
 #if __cplusplus <= 199711L
 #ifdef MSABI
 // expected-note@-3 {{implicit default constructor for 'B' first required here}}
 // expected-note@-4 {{implicit destructor for 'B' first required here}}
 #endif
 #else
 #ifdef MSABI
 // expected-note@-8 {{default constructor of 'D' is implicitly deleted because base class 'B' has a deleted default constructor}}
 #endif
 #endif
   virtual void foo();
   ~D();
 #if __cplusplus >= 201103L
   //expected-error@-2 {{non-deleted function '~D' cannot override a deleted function}}
-#ifdef MSABI
-//expected-error@-4 {{use a deleted function}}
-#else
-#endif
 #endif
 };
 
 #ifdef MSABI
 D d;
 #if __cplusplus <= 199711L
 // expected-note@-2 2{{implicit default constructor for 'D' first required here}}
 #else
-// expected-error@-4 {{call to implicitly-deleted default constructor of 'D'}}
-// expected-note@-5 {{implicit destructor for 'D' first required here}}
+// expected-error@-4 {{call to implicitly-deleted default constructor of 'D'}}å
 #endif
 #else
 void D::foo() {
 #if __cplusplus <= 199711L
 // expected-note@-2 {{implicit destructor for 'B' first required here}}
 #endif
 }
 #endif
 
 struct E : public virtual A {
 #if __cplusplus >= 201103L
 // expected-error@-2 {{deleted function '~E' cannot override a non-deleted function}}
 #endif
 
   NoDestroy x;
 #if __cplusplus <= 199711L
   // expected-error@-2 {{field of type 'NoDestroy' has private destructor}}
 #ifdef MSABI
   // expected-error@-4 {{field of type 'NoDestroy' has private destructor}}
 #endif
 #else
   // expected-note@-7 {{destructor of 'E' is implicitly deleted because field 'x' has an inaccessible destructor}}
 #ifdef MSABI
   // expected-note@-9 {{default constructor of 'E' is implicitly deleted because field 'x' has an inaccessible destructor}}
-  // expected-note@-10 {{destructor of 'E' is implicitly deleted}}
 #endif
 #endif
 };
 
 struct F : public E {
 #if __cplusplus <= 199711L
 // expected-note@-2 {{implicit destructor for 'E' first required here}}
 #ifdef MSABI
 // expected-note@-4 {{implicit default constructor for 'E' first required here}}
 #endif
 #else
 // expected-note@-7 {{overridden virtual function is here}}
 #ifdef MSABI
 // expected-note@-9 {{default constructor of 'F' is implicitly deleted because base class 'E' has a deleted default constructor}}
-// expected-note@-10 {{destructor of 'F' is implicitly deleted}}
 #endif
 #endif
 };
 
 
 struct G : public virtual F {
 #ifdef MSABI
 #if __cplusplus <= 199711L
 // expected-note@-3 {{implicit default constructor for 'F' first required here}}
 // expected-note@-4 {{implicit destructor for 'F' first required here}}
 #else
 // expected-note@-6 {{default constructor of 'G' is implicitly deleted because base class 'F' has a deleted default constructor}}
 #endif
 #endif
 
   virtual void foo();
   ~G();
 #if __cplusplus >= 201103L
   //expected-error@-2 {{non-deleted function '~G' cannot override a deleted function}}
-#ifdef MSABI
-  //expected-error@-4 {{use a deleted function}}
-#endif
 #endif
 };
 
 #ifdef MSABI
 G g;
 #if __cplusplus <= 199711L
 // expected-note@-2 2{{implicit default constructor for 'G' first required here}}
 #else
 // expected-error@-4 {{call to implicitly-deleted default constructor of 'G'}}
-// expected-note@-5 {{mplicit destructor for 'G' first required here}}
 #endif
 #else
 void G::foo() {
 #if __cplusplus <= 199711L
 // expected-note@-2 {{implicit destructor for 'F' first required here}}
 #endif
 }
 #endif
#if __cplusplus <= 199711L
   // expected-error@-2 {{field of type 'NoDestroy' has private destructor}}
 #ifdef MSABI
   // expected-error@-4 {{field of type 'NoDestroy' has private destructor}}
 #endif
 #else
   // expected-note@-7 {{destructor of 'H' is implicitly deleted because field 'x' has an inaccessible destructor}}
 #ifdef MSABI
   // expected-note@-9 {{default constructor of 'H' is implicitly deleted because field 'x' has an inaccessible destructor}}
-  // expected-note@-10 {{destructor of 'H' is implicitly deleted}}
 #endif
 #endif
 };
 
 struct I : public virtual H {
 #ifdef MSABI
 #if __cplusplus > 199711L
 // expected-note@-3 {{default constructor of 'I' is implicitly deleted because base class 'H' has a deleted default constructor}}

 // expected-note@-4 {{implicit destructor for 'H' first required here}}
 #else
 // expected-note@-6 {{default constructor of 'J' is implicitly deleted because base class 'I' has a deleted default constructor}}
 #endif
 #endif
 
   virtual void foo();
   ~J();
-#ifdef MSABI
-#if __cplusplus >= 201103L
-//expected-error@-3 {{use a deleted function}}
-#endif
-#endif
 };
 
 #ifdef MSABI
 J j;
 #if __cplusplus <= 199711L
 // expected-note@-2 2{{implicit default constructor for 'J' first required here}}
 #else
 // expected-error@-4 {{call to implicitly-deleted default constructor of 'J'}}
-// expected-note@-5 {{implicit destructor for 'J' first required here}}
 #endif
 
 #else
 void J::foo() {
 #if __cplusplus <= 199711L
 // expected-note@-2 {{implicit destructor for 'H' first required here}}
 #endif
 }
 #endif

clang/test/SemaObjCXX/arc-0x.mm

void test() {
     func([](A *a[]){}); // expected-error{{must explicitly describe intended ownership of an object array parameter}}
     func(^(A *a[]){}); // expected-error{{must explicitly describe intended ownership of an object array parameter}}
   }
 }
 
 namespace test_union {
   // Implicitly-declared special functions of a union are deleted by default if
   // ARC is enabled and the union has an ObjC pointer field.
   union U0 {
-    id f0; // expected-note 7 {{'U0' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
+    id f0; // expected-note 6 {{'U0' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
   };
 
   union U1 {
-    __weak id f0; // expected-note 13 {{'U1' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
+    __weak id f0; // expected-note 12 {{'U1' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
     U1() = default; // expected-warning {{explicitly defaulted default constructor is implicitly deleted}} expected-note {{explicitly defaulted function was implicitly deleted here}}
-    ~U1() = default; // expected-warning {{explicitly defaulted destructor is implicitly deleted}} expected-note 2{{explicitly defaulted function was implicitly deleted here}}
+    ~U1() = default; // expected-warning {{explicitly defaulted destructor is implicitly deleted}} expected-note {{explicitly defaulted function was implicitly deleted here}}
     U1(const U1 &) = default; // expected-warning {{explicitly defaulted copy constructor is implicitly deleted}} expected-note 2 {{explicitly defaulted function was implicitly deleted here}}
     U1(U1 &&) = default; // expected-warning {{explicitly defaulted move constructor is implicitly deleted}}
     U1 & operator=(const U1 &) = default; // expected-warning {{explicitly defaulted copy assignment operator is implicitly deleted}} expected-note 2 {{explicitly defaulted function was implicitly deleted here}}
     U1 & operator=(U1 &&) = default; // expected-warning {{explicitly defaulted move assignment operator is implicitly deleted}}
   };
 
   id getStrong();
 
union U3 {
     U3 & operator=(const U3 &);
     U3 & operator=(U3 &&);
   };
 
   // ObjC pointer fields in anonymous union fields delete the defaulted special
   // functions of the containing class.
   struct S0 {
     union {
-      id f0; // expected-note 7 {{'' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
+      id f0; // expected-note 6 {{'' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
       char f1;
     };
   };
 
   struct S1 {
     union {
-      union { // expected-note 2 {{'S1' is implicitly deleted because variant field '' has a non-trivial}} expected-note 5 {{'S1' is implicitly deleted because field '' has a deleted}}
-        id f0; // expected-note 3 {{'' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
+      union { // expected-note 2 {{'S1' is implicitly deleted because variant field '' has a non-trivial}} expected-note 4 {{'S1' is implicitly deleted because field '' has a deleted}}
+        id f0; // expected-note 2 {{'' is implicitly deleted because variant field 'f0' is an ObjC pointer}}
         char f1;
       };
       int f2;
     };
   };
 
   struct S2 {
     union {
       // FIXME: the note should say 'f0' is causing the special functions to be deleted.
-      struct { // expected-note 7 {{'S2' is implicitly deleted because variant field '' has a non-trivial}}
+      struct { // expected-note 6 {{'S2' is implicitly deleted because variant field '' has a non-trivial}}
         id f0;
         int f1;
       };
       int f2;
     };
     int f3;
   };
 
   U0 *x0;
   U1 *x1;
   U2 *x2;
   U3 *x3;
   S0 *x4;
   S1 *x5;
   S2 *x6;
 
-  static union { // expected-error {{call to implicitly-deleted default constructor of}} expected-error {{attempt to use a deleted function}}
-    id g0; // expected-note {{default constructor of '' is implicitly deleted because variant field 'g0' is an ObjC pointer}} \
-           // expected-note {{destructor of '' is implicitly deleted because}}
+  static union { // expected-error {{call to implicitly-deleted default constructor of}}
+    id g0; // expected-note {{default constructor of '' is implicitly deleted because variant field 'g0' is an ObjC pointer}}
   };
 
-  static union { // expected-error {{call to implicitly-deleted default constructor of}} expected-error {{attempt to use a deleted function}}
-    union { // expected-note {{default constructor of '' is implicitly deleted because field '' has a deleted default constructor}} \
-            // expected-note {{destructor of '' is implicitly deleted because}}
-      union { // expected-note {{default constructor of '' is implicitly deleted because field '' has a deleted default constructor}} \
-              // expected-note {{destructor of '' is implicitly deleted because}}
-        __weak id g1; // expected-note {{default constructor of '' is implicitly deleted because variant field 'g1' is an ObjC pointer}} \
-                      // expected-note {{destructor of '' is implicitly deleted because}}
+  static union { // expected-error {{call to implicitly-deleted default constructor of}}
+    union { // expected-note {{default constructor of '' is implicitly deleted because field '' has a deleted default constructor}}
+      union { // expected-note {{default constructor of '' is implicitly deleted because field '' has a deleted default constructor}}
+        __weak id g1; // expected-note {{default constructor of '' is implicitly deleted because variant field 'g1' is an ObjC pointer}}
         int g2;
       };
       int g3;
     };
     int g4;
   };
 
   void testDefaultConstructor() {
-    U0 t0; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-    U1 t1; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+    U0 t0; // expected-error {{call to implicitly-deleted default constructor}}
+    U1 t1; // expected-error {{call to implicitly-deleted default constructor}}
     U2 t2;
     U3 t3;
-    S0 t4; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-    S1 t5; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
-    S2 t6; // expected-error {{call to implicitly-deleted default constructor}} expected-error {{attempt to use a deleted function}}
+    S0 t4; // expected-error {{call to implicitly-deleted default constructor}}
+    S1 t5; // expected-error {{call to implicitly-deleted default constructor}}
+    S2 t6; // expected-error {{call to implicitly-deleted default constructor}}
   }
 
   void testDestructor(U0 *u0, U1 *u1, U2 *u2, U3 *u3, S0 *s0, S1 *s1, S2 *s2) {
     delete u0; // expected-error {{attempt to use a deleted function}}
     delete u1; // expected-error {{attempt to use a deleted function}}
     delete u2;
     delete u3;
     delete s0; // expected-error {{attempt to use a deleted function}}

clang/test/SemaOpenCLCXX/address-space-references.cl

 // RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -pedantic -verify -fsyntax-only
 
 __global const int& f(__global float &ref) {
   return ref; // expected-error{{reference of type 'const __global int &' cannot bind to a temporary object because of address space mismatch}}
 }
 
 int bar(const __global unsigned int &i); // expected-note{{passing argument to parameter 'i' here}}
 //FIXME: With the overload below the call should be resolved
 // successfully. However, current overload resolution logic
 // can't detect this case and therefore fails.
 int bar(const unsigned int &i);
 
 void foo() {
-  bar(1) // expected-error{{binding reference of type 'const __global unsigned int' to value of type 'int' changes address space}}
+  bar(1); // expected-error{{binding reference of type 'const __global unsigned int' to value of type 'int' changes address space}}
 }
 
 // Test addr space conversion with nested pointers
 
 extern void nestptr(int *&); // expected-note {{candidate function not viable: no known conversion from '__global int *__private' to '__generic int *__generic &__private' for 1st argument}}
 extern void nestptr_const(int * const &); // expected-note {{candidate function not viable: cannot pass pointer to address space '__constant' as a pointer to address space '__generic' in 1st argument}}
 int test_nestptr(__global int *glob, __constant int *cons, int* gen) {
   nestptr(glob); // expected-error{{no matching function for call to 'nestptr'}}
   // Addr space conversion first occurs on a temporary.
   nestptr_const(glob);
   // No legal conversion between disjoint addr spaces.
   nestptr_const(cons); // expected-error{{no matching function for call to 'nestptr_const'}}
   return *(*cons ? glob : gen);
 }

clang/test/SemaTemplate/instantiate-init.cpp

namespace PR7985 {
 
   template<>
   const Data<float*> Description<float*>::data[];
 
   void test() {
     integral_c<1> ic1 = array_lengthof(Description<int>::data);
     (void)sizeof(array_lengthof(Description<float>::data));
 
-    sizeof(array_lengthof( // expected-error{{no matching function for call to 'array_lengthof'}}
+    (void)sizeof(array_lengthof( // expected-error{{no matching function for call to 'array_lengthof'}}
                           Description<int*>::data // expected-note{{in instantiation of static data member 'PR7985::Description<int *>::data' requested here}}
                           ));
 
     array_lengthof(Description<float*>::data); // expected-error{{no matching function for call to 'array_lengthof'}}
   }
 }
 
 namespace PR13064 {
   // Ensure that in-class direct-initialization is instantiated as