[clang][NFC] Replace dr with cwg in DR test suite

This patch is breaking `dr` to `cwg` equivalence in our terminology, making room for tests for LWG issues that concern compiler intrinsics.

Author: Endilll

clang/test/CXX/drs/dr118.cpp renamed to clang/test/CXX/drs/cwg118.cpp

@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -triple x86_64-linux -std=c++14 %s -pedantic-errors -emit-llvm -o - | FileCheck %s --implicit-check-not " call "
 // RUN: %clang_cc1 -triple x86_64-linux -std=c++1z %s -pedantic-errors -emit-llvm -o - | FileCheck %s --implicit-check-not " call "
 
-// dr118: yes
+// cwg118: yes
 
 struct S {
   virtual void f();

clang/test/CXX/drs/dr124.cpp renamed to clang/test/CXX/drs/cwg124.cpp

@@ -12,7 +12,7 @@
 #define NOTHROW noexcept(true)
 #endif
 
-namespace dr124 { // dr124: 2.7
+namespace cwg124 { // cwg124: 2.7
 
 extern void full_expr_fence() NOTHROW;
 
@@ -32,20 +32,20 @@ void f() {
   full_expr_fence();
 }
 
-// CHECK-LABEL: define {{.*}} void @dr124::f()()
-// CHECK:         call void @dr124::full_expr_fence()
+// CHECK-LABEL: define {{.*}} void @cwg124::f()()
+// CHECK:         call void @cwg124::full_expr_fence()
 // CHECK:         br label %arrayctor.loop
 // CHECK-LABEL: arrayctor.loop:
-// CHECK:         call void @dr124::A::A()
-// CHECK:         call void @dr124::B::B(dr124::A)
-// CHECK:         call void @dr124::A::~A()
+// CHECK:         call void @cwg124::A::A()
+// CHECK:         call void @cwg124::B::B(cwg124::A)
+// CHECK:         call void @cwg124::A::~A()
 // CHECK:         br {{.*}}, label %arrayctor.cont, label %arrayctor.loop
 // CHECK-LABEL: arrayctor.cont:
-// CHECK:         call void @dr124::full_expr_fence()
+// CHECK:         call void @cwg124::full_expr_fence()
 // CHECK:         br label %arraydestroy.body
 // CHECK-LABEL: arraydestroy.body:
-// CHECK:         call void @dr124::B::~B()
+// CHECK:         call void @cwg124::B::~B()
 // CHECK-LABEL: }
 
 
-} // namespace dr124
+} // namespace cwg124

clang/test/CXX/drs/dr158.cpp renamed to clang/test/CXX/drs/cwg158.cpp

@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -triple x86_64-linux -std=c++14 %s -O3 -disable-llvm-passes -pedantic-errors -emit-llvm -o - | FileCheck %s
 // RUN: %clang_cc1 -triple x86_64-linux -std=c++1z %s -O3 -disable-llvm-passes -pedantic-errors -emit-llvm -o - | FileCheck %s
 
-// dr158: yes
+// cwg158: yes
 
 // CHECK-LABEL: define {{.*}} @_Z1f
 const int *f(const int * const *p, int **q) {

clang/test/CXX/drs/dr1748.cpp renamed to clang/test/CXX/drs/cwg1748.cpp

@@ -3,7 +3,7 @@
 // RUN: %clang_cc1 -std=c++14 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | FileCheck %s
 // RUN: %clang_cc1 -std=c++1z %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | FileCheck %s
 
-// dr1748: 3.7
+// cwg1748: 3.7
 
 // FIXME: __SIZE_TYPE__ expands to 'long long' on some targets.
 __extension__ typedef __SIZE_TYPE__ size_t;

clang/test/CXX/drs/dr177x.cpp renamed to clang/test/CXX/drs/cwg177x.cpp

@@ -4,9 +4,9 @@
 // RUN: %clang_cc1 -std=c++1z %s -fexceptions -fcxx-exceptions -pedantic-errors -ast-dump | FileCheck %s --check-prefixes=CHECK,CXX11,CXX14
 // RUN: %clang_cc1 -std=c++1z %s -fexceptions -fcxx-exceptions -pedantic-errors -triple i386-windows-pc -ast-dump | FileCheck %s --check-prefixes=CHECK,CXX11,CXX14
 
-namespace dr1772 { // dr1772: 14
+namespace cwg1772 { // cwg1772: 14
   // __func__ in a lambda should name operator(), not the containing function.
-  // CHECK: NamespaceDecl{{.+}}dr1772
+  // CHECK: NamespaceDecl{{.+}}cwg1772
 #if __cplusplus >= 201103L
   auto x = []() { __func__; };
   // CXX11: LambdaExpr
@@ -30,10 +30,10 @@ namespace dr1772 { // dr1772: 14
 #endif // __cplusplus >= 201103L
 }
 
-namespace dr1779 { // dr1779: 14
+namespace cwg1779 { // cwg1779: 14
   // __func__ in a function template, member function template, or generic
   //  lambda should have a dependent type.
-  // CHECK: NamespaceDecl{{.+}}dr1779
+  // CHECK: NamespaceDecl{{.+}}cwg1779
 
   template<typename T>
   void FuncTemplate() {

clang/test/CXX/drs/dr1807.cpp renamed to clang/test/CXX/drs/cwg1807.cpp

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX11
 // RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX11
 
-namespace dr1807 { // dr1807: 3.0
+namespace cwg1807 { // cwg1807: 3.0
 struct S {
   S() {}
   ~S() {}
@@ -17,12 +17,12 @@ void f() {
 }
 }
 
-// CHECK-LABEL:      define dso_local void @dr1807::f()
-// CHECK:              invoke void @dr1807::S::S(){{.+}}
+// CHECK-LABEL:      define dso_local void @cwg1807::f()
+// CHECK:              invoke void @cwg1807::S::S(){{.+}}
 // CHECK-NEXT:         {{.+}} unwind label %lpad
 // CHECK-LABEL:      lpad:
 // CHECK:              br {{.+}}, label {{.+}}, label %arraydestroy.body
 // CHECK-LABEL:      arraydestroy.body:         
 // CHECK:              [[ARRAYDESTROY_ELEMENT:%.*]] = getelementptr {{.+}}, i64 -1
-// CXX98-NEXT:         invoke void @dr1807::S::~S()({{.*}}[[ARRAYDESTROY_ELEMENT]])
-// SINCE-CXX11-NEXT:   call void @dr1807::S::~S()({{.*}}[[ARRAYDESTROY_ELEMENT]])
+// CXX98-NEXT:         invoke void @cwg1807::S::~S()({{.*}}[[ARRAYDESTROY_ELEMENT]])
+// SINCE-CXX11-NEXT:   call void @cwg1807::S::~S()({{.*}}[[ARRAYDESTROY_ELEMENT]])

clang/test/CXX/drs/dr185.cpp renamed to clang/test/CXX/drs/cwg185.cpp

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
 // RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
 
-namespace dr185 { // dr185: 2.7
+namespace cwg185 { // cwg185: 2.7
 struct A {
   mutable int value;
   explicit A(int i) : value(i) {}
@@ -20,11 +20,11 @@ int foo() {
   return n.value;
 }
 
-// CHECK-LABEL: define {{.*}} i32 @dr185::foo()
-// CHECK:         call void @dr185::A::A(int)(ptr {{[^,]*}} %ref.tmp, {{.*}})
+// CHECK-LABEL: define {{.*}} i32 @cwg185::foo()
+// CHECK:         call void @cwg185::A::A(int)(ptr {{[^,]*}} %ref.tmp, {{.*}})
 // CHECK:         store ptr %ref.tmp, ptr %t
 // CHECK-NOT:     %t =
-// CHECK:         [[DR185_T:%.+]] = load ptr, ptr %t
-// CHECK:         call void @llvm.memcpy.p0.p0.i64(ptr {{[^,]*}} %n, ptr {{[^,]*}} [[DR185_T]], {{.*}})
+// CHECK:         [[CWG185_T:%.+]] = load ptr, ptr %t
+// CHECK:         call void @llvm.memcpy.p0.p0.i64(ptr {{[^,]*}} %n, ptr {{[^,]*}} [[CWG185_T]], {{.*}})
 // CHECK-LABEL: }
-} // namespace dr185
+} // namespace cwg185

clang/test/CXX/drs/dr193.cpp renamed to clang/test/CXX/drs/cwg193.cpp

@@ -12,7 +12,7 @@
 #define NOTHROW noexcept(true)
 #endif
 
-namespace dr193 { // dr193: 2.7
+namespace cwg193 { // cwg193: 2.7
 struct A {
   ~A() NOTHROW {}
 };
@@ -35,12 +35,12 @@ void foo() {
 }
 
 // skipping over D1 (complete object destructor)
-// CHECK-LABEL: define {{.*}} void @dr193::D::~D(){{.*}}
-// CHECK-LABEL: define {{.*}} void @dr193::D::~D(){{.*}}
-// CHECK-NOT:     call void @dr193::A::~A()
-// CHECK-NOT:     call void @dr193::B::~B()
-// CHECK:         call void @dr193::C::~C()
-// CHECK:         call void @dr193::B::~B()
-// CHECK:         call void @dr193::A::~A()
+// CHECK-LABEL: define {{.*}} void @cwg193::D::~D(){{.*}}
+// CHECK-LABEL: define {{.*}} void @cwg193::D::~D(){{.*}}
+// CHECK-NOT:     call void @cwg193::A::~A()
+// CHECK-NOT:     call void @cwg193::B::~B()
+// CHECK:         call void @cwg193::C::~C()
+// CHECK:         call void @cwg193::B::~B()
+// CHECK:         call void @cwg193::A::~A()
 // CHECK-LABEL: }
-} // namespace dr193
+} // namespace cwg193

clang/test/CXX/drs/dr199.cpp renamed to clang/test/CXX/drs/cwg199.cpp

@@ -12,7 +12,7 @@
 #define NOTHROW noexcept(true)
 #endif
 
-namespace dr199 { // dr199: 2.8
+namespace cwg199 { // cwg199: 2.8
 struct A {
   ~A() NOTHROW {}
 };
@@ -25,9 +25,9 @@ void foo() {
   A(), B();
 }
 
-// CHECK-LABEL: define {{.*}} void @dr199::foo()
-// CHECK-NOT:     call void @dr199::A::~A()
-// CHECK:         call void @dr199::B::~B()
-// CHECK:         call void @dr199::A::~A()
+// CHECK-LABEL: define {{.*}} void @cwg199::foo()
+// CHECK-NOT:     call void @cwg199::A::~A()
+// CHECK:         call void @cwg199::B::~B()
+// CHECK:         call void @cwg199::A::~A()
 // CHECK-LABEL: }
-} // namespace dr199
+} // namespace cwg199

clang/test/CXX/drs/dr201.cpp renamed to clang/test/CXX/drs/cwg201.cpp

@@ -12,7 +12,7 @@
 #define NOTHROW noexcept(true)
 #endif
 
-namespace dr201 { // dr201: 2.8
+namespace cwg201 { // cwg201: 2.8
 
 extern void full_expr_fence() NOTHROW;
 
@@ -31,12 +31,12 @@ void foo() {
   full_expr_fence();
 }
 
-// CHECK-LABEL: define {{.*}} void @dr201::foo()
-// CHECK:         call void @dr201::full_expr_fence()
-// CHECK:         call void @dr201::B::B(dr201::A)
-// CHECK:         call void @dr201::A::~A()
-// CHECK:         call void @dr201::full_expr_fence()
-// CHECK:         call void @dr201::B::~B()
+// CHECK-LABEL: define {{.*}} void @cwg201::foo()
+// CHECK:         call void @cwg201::full_expr_fence()
+// CHECK:         call void @cwg201::B::B(cwg201::A)
+// CHECK:         call void @cwg201::A::~A()
+// CHECK:         call void @cwg201::full_expr_fence()
+// CHECK:         call void @cwg201::B::~B()
 // CHECK-LABEL: }
 
-} // namespace dr201
+} // namespace cwg201

clang/test/CXX/drs/dr210.cpp renamed to clang/test/CXX/drs/cwg210.cpp

@@ -13,7 +13,7 @@
 #pragma clang diagnostic pop
 #endif
 
-namespace dr210 { // dr210: 2.7
+namespace cwg210 { // cwg210: 2.7
 struct B {
   long i;
   B();
@@ -33,9 +33,9 @@ void toss(const B* b) {
   throw *b;
 }
 
-// CHECK-LABEL: define {{.*}} void @dr210::toss(dr210::B const*)
+// CHECK-LABEL: define {{.*}} void @cwg210::toss(cwg210::B const*)
 // CHECK:         %[[EXCEPTION:.*]] = call ptr @__cxa_allocate_exception(i64 16)
-// CHECK:         call void @__cxa_throw(ptr %[[EXCEPTION]], ptr @typeinfo for dr210::B, ptr @dr210::B::~B())
+// CHECK:         call void @__cxa_throw(ptr %[[EXCEPTION]], ptr @typeinfo for cwg210::B, ptr @cwg210::B::~B())
 // CHECK-LABEL: }
 
-} // namespace dr210
+} // namespace cwg210

clang/test/CXX/drs/dr2335.cpp renamed to clang/test/CXX/drs/cwg2335.cpp

@@ -10,7 +10,7 @@
 // expected-no-diagnostics
 #endif
 
-namespace dr2335 { // dr2335: no drafting 2018-06
+namespace cwg2335 { // cwg2335: no drafting 2018-06
 // FIXME: current consensus is that the examples are well-formed.
 #if __cplusplus >= 201402L
 namespace ex1 {
@@ -25,24 +25,24 @@ namespace ex2 {
 template <int> struct X {};
 template <class T> struct partition_indices {
   static auto compute_right() { return X<I>(); }
-  // since-cxx14-error@-1 {{no member 'I' in 'dr2335::ex2::partition_indices<int>'; it has not yet been instantiated}}
-  //   since-cxx14-note@#dr2335-ex2-right {{in instantiation of member function 'dr2335::ex2::partition_indices<int>::compute_right' requested here}}
-  //   since-cxx14-note@#dr2335-ex2-inst {{in instantiation of template class 'dr2335::ex2::partition_indices<int>' requested here}}
-  //   since-cxx14-note@#dr2335-ex2-I {{not-yet-instantiated member is declared here}}
-  static constexpr auto right = compute_right; // #dr2335-ex2-right
-  static constexpr int I = sizeof(T); // #dr2335-ex2-I
+  // since-cxx14-error@-1 {{no member 'I' in 'cwg2335::ex2::partition_indices<int>'; it has not yet been instantiated}}
+  //   since-cxx14-note@#cwg2335-ex2-right {{in instantiation of member function 'cwg2335::ex2::partition_indices<int>::compute_right' requested here}}
+  //   since-cxx14-note@#cwg2335-ex2-inst {{in instantiation of template class 'cwg2335::ex2::partition_indices<int>' requested here}}
+  //   since-cxx14-note@#cwg2335-ex2-I {{not-yet-instantiated member is declared here}}
+  static constexpr auto right = compute_right; // #cwg2335-ex2-right
+  static constexpr int I = sizeof(T); // #cwg2335-ex2-I
 };
-template struct partition_indices<int>; // #dr2335-ex2-inst
+template struct partition_indices<int>; // #cwg2335-ex2-inst
 } // namespace ex2
 
 namespace ex3 {
 struct partition_indices {
-  static auto compute_right() {} // #dr2335-compute_right
-  static constexpr auto right = compute_right; // #dr2335-ex3-right
+  static auto compute_right() {} // #cwg2335-compute_right
+  static constexpr auto right = compute_right; // #cwg2335-ex3-right
   // since-cxx14-error@-1 {{function 'compute_right' with deduced return type cannot be used before it is defined}}
-  //   since-cxx14-note@#dr2335-compute_right {{'compute_right' declared here}}
-  // since-cxx14-error@#dr2335-ex3-right {{declaration of variable 'right' with deduced type 'const auto' requires an initializer}}
+  //   since-cxx14-note@#cwg2335-compute_right {{'compute_right' declared here}}
+  // since-cxx14-error@#cwg2335-ex3-right {{declaration of variable 'right' with deduced type 'const auto' requires an initializer}}
 };
 } // namespace ex3
 #endif
-} // namespace dr2335
+} // namespace cwg2335

clang/test/CXX/drs/dr2390.cpp renamed to clang/test/CXX/drs/cwg2390.cpp

@@ -1,6 +1,6 @@
 // RUN: %clang_cc1 -E -P %s -o - | FileCheck %s
 
-// dr2390: 14
+// cwg2390: 14
 
 namespace PR48462 {
 // Test that macro expansion of the builtin argument works.

clang/test/CXX/drs/dr2504.cpp renamed to clang/test/CXX/drs/cwg2504.cpp

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX11
 // RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK,SINCE-CXX11
 
-namespace dr2504 { // dr2504: no
+namespace cwg2504 { // cwg2504: no
 #if __cplusplus >= 201103L
 struct V { V() = default; V(int); };
 struct Q { Q(); };
@@ -27,11 +27,11 @@ void foo() { C c; } // bar is not invoked, because the V subobject is not initia
 //        we are not supposed to unconditionally call `bar()` and call a constructor
 //        inherited from `V`.
 
-// SINCE-CXX11-LABEL: define linkonce_odr void @dr2504::B::B()
+// SINCE-CXX11-LABEL: define linkonce_odr void @cwg2504::B::B()
 // SINCE-CXX11-NOT:     br
-// SINCE-CXX11:         call noundef i32 @dr2504::bar()
+// SINCE-CXX11:         call noundef i32 @cwg2504::bar()
 // SINCE-CXX11-NOT:     br
-// SINCE-CXX11:         call void @dr2504::A::A(int)
+// SINCE-CXX11:         call void @cwg2504::A::A(int)
 // SINCE-CXX11-LABEL: }
 
 // CHECK: {{.*}}

clang/test/CXX/drs/dr292.cpp renamed to clang/test/CXX/drs/cwg292.cpp

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
 // RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -disable-llvm-passes -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
 
-namespace dr292 { // dr292: 2.9
+namespace cwg292 { // cwg292: 2.9
 
 extern int g();
 
@@ -18,13 +18,13 @@ void f() {
   new A(g());
 }
 
-// CHECK-LABEL: define {{.*}} void @dr292::f()()
+// CHECK-LABEL: define {{.*}} void @cwg292::f()()
 // CHECK:         %[[CALL:.+]] = call {{.*}} @operator new(unsigned long)({{.*}})
-// CHECK:         invoke {{.*}} i32 @dr292::g()()
+// CHECK:         invoke {{.*}} i32 @cwg292::g()()
 // CHECK-NEXT:           to {{.*}} unwind label %lpad
 // CHECK-LABEL: lpad:
 // CHECK:         call void @operator delete(void*)(ptr {{.*}} %[[CALL]])
 // CHECK-LABEL: eh.resume:
 // CHECK-LABEL: }
 
-} // namespace dr292
+} // namespace cwg292

clang/test/CXX/drs/dr392.cpp renamed to clang/test/CXX/drs/cwg392.cpp

@@ -12,7 +12,7 @@
 #define NOTHROW noexcept(true)
 #endif
 
-namespace dr392 { // dr392: 2.8
+namespace cwg392 { // cwg392: 2.8
 
 struct A {
   operator bool() NOTHROW;
@@ -32,9 +32,9 @@ void f()
   if (C().get()) {}
 }
 
-} // namespace dr392
+} // namespace cwg392
 
-// CHECK-LABEL: define {{.*}} void @dr392::f()()
-// CHECK:         call {{.*}} i1 @dr392::A::operator bool()
-// CHECK:         call void @dr392::C::~C()
+// CHECK-LABEL: define {{.*}} void @cwg392::f()()
+// CHECK:         call {{.*}} i1 @cwg392::A::operator bool()
+// CHECK:         call void @cwg392::C::~C()
 // CHECK-LABEL: }

clang/test/CXX/drs/dr412.cpp renamed to clang/test/CXX/drs/cwg412.cpp

@@ -6,7 +6,7 @@
 // RUN: %clang_cc1 -std=c++23 %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -DNOEXCEPT=noexcept -DBAD_ALLOC=
 // RUN: %clang_cc1 -std=c++2c %s -verify -fexceptions -fcxx-exceptions -pedantic-errors -DNOEXCEPT=noexcept -DBAD_ALLOC=
 
-// dr412: 3.4
+// cwg412: 3.4
 // lwg404: yes
 // lwg2340: yes