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-rw-r--r--clang/test/Modules/merge-using-decls.cpp4
-rw-r--r--clang/test/Modules/odr_hash.cpp1157
2 files changed, 1161 insertions, 0 deletions
diff --git a/clang/test/Modules/merge-using-decls.cpp b/clang/test/Modules/merge-using-decls.cpp
index 98989d12f98..4153d14207c 100644
--- a/clang/test/Modules/merge-using-decls.cpp
+++ b/clang/test/Modules/merge-using-decls.cpp
@@ -37,6 +37,10 @@ template int UseAll<Y>();
// Here, we're instantiating the definition from 'A' and merging the definition
// from 'B' into it.
+// expected-error@b.h:* {{'D::type' from module 'B' is not present in definition of 'D<T>' in module 'A'}}
+// expected-error@b.h:* {{'D::value' from module 'B' is not present in definition of 'D<T>' in module 'A'}}
+
+
// expected-error@b.h:* {{'E::value' from module 'B' is not present in definition of 'E<T>' in module 'A'}}
// expected-error@b.h:* {{'E::v' from module 'B' is not present in definition of 'E<T>' in module 'A'}}
diff --git a/clang/test/Modules/odr_hash.cpp b/clang/test/Modules/odr_hash.cpp
new file mode 100644
index 00000000000..60e39cf9d4e
--- /dev/null
+++ b/clang/test/Modules/odr_hash.cpp
@@ -0,0 +1,1157 @@
+// Clear and create directories
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// RUN: mkdir %t/cache
+// RUN: mkdir %t/Inputs
+
+// Build first header file
+// RUN: echo "#define FIRST" >> %t/Inputs/first.h
+// RUN: cat %s >> %t/Inputs/first.h
+
+// Build second header file
+// RUN: echo "#define SECOND" >> %t/Inputs/second.h
+// RUN: cat %s >> %t/Inputs/second.h
+
+// Build module map file
+// RUN: echo "module first {" >> %t/Inputs/module.map
+// RUN: echo " header \"first.h\"" >> %t/Inputs/module.map
+// RUN: echo "}" >> %t/Inputs/module.map
+// RUN: echo "module second {" >> %t/Inputs/module.map
+// RUN: echo " header \"second.h\"" >> %t/Inputs/module.map
+// RUN: echo "}" >> %t/Inputs/module.map
+
+// Run test
+// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t/cache -x c++ -I%t/Inputs -verify %s -std=c++11
+
+#if !defined(FIRST) && !defined(SECOND)
+#include "first.h"
+#include "second.h"
+#endif
+
+#if defined(FIRST)
+struct S1 {
+ public:
+};
+#elif defined(SECOND)
+struct S1 {
+ private:
+};
+#else
+S1 s1;
+// expected-error@first.h:* {{'S1' has different definitions in different modules; first difference is definition in module 'first' found public access specifier}}
+// expected-note@second.h:* {{but in 'second' found private access specifier}}
+#endif
+
+#if defined(FIRST)
+struct S2Friend2 {};
+struct S2 {
+ friend S2Friend2;
+};
+#elif defined(SECOND)
+struct S2Friend1 {};
+struct S2 {
+ friend S2Friend1;
+};
+#else
+S2 s2;
+// expected-error@first.h:* {{'S2' has different definitions in different modules; first difference is definition in module 'first' found friend 'S2Friend2'}}
+// expected-note@second.h:* {{but in 'second' found other friend 'S2Friend1'}}
+#endif
+
+#if defined(FIRST)
+template<class>
+struct S3Template {};
+struct S3 {
+ friend S3Template<int>;
+};
+#elif defined(SECOND)
+template<class>
+struct S3Template {};
+struct S3 {
+ friend S3Template<double>;
+};
+#else
+S3 s3;
+// expected-error@first.h:* {{'S3' has different definitions in different modules; first difference is definition in module 'first' found friend 'S3Template<int>'}}
+// expected-note@second.h:* {{but in 'second' found other friend 'S3Template<double>'}}
+#endif
+
+#if defined(FIRST)
+struct S4 {
+ static_assert(1 == 1, "First");
+};
+#elif defined(SECOND)
+struct S4 {
+ static_assert(1 == 1, "Second");
+};
+#else
+S4 s4;
+// expected-error@first.h:* {{'S4' has different definitions in different modules; first difference is definition in module 'first' found static assert with message}}
+// expected-note@second.h:* {{but in 'second' found static assert with different message}}
+#endif
+
+#if defined(FIRST)
+struct S5 {
+ static_assert(1 == 1, "Message");
+};
+#elif defined(SECOND)
+struct S5 {
+ static_assert(2 == 2, "Message");
+};
+#else
+S5 s5;
+// expected-error@first.h:* {{'S5' has different definitions in different modules; first difference is definition in module 'first' found static assert with condition}}
+// expected-note@second.h:* {{but in 'second' found static assert with different condition}}
+#endif
+
+#if defined(FIRST)
+struct S6 {
+ int First();
+};
+#elif defined(SECOND)
+struct S6 {
+ int Second();
+};
+#else
+S6 s6;
+// expected-error@second.h:* {{'S6::Second' from module 'second' is not present in definition of 'S6' in module 'first'}}
+// expected-note@first.h:* {{definition has no member 'Second'}}
+#endif
+
+#if defined(FIRST)
+struct S7 {
+ double foo();
+};
+#elif defined(SECOND)
+struct S7 {
+ int foo();
+};
+#else
+S7 s7;
+// expected-error@second.h:* {{'S7::foo' from module 'second' is not present in definition of 'S7' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'foo' does not match}}
+#endif
+
+#if defined(FIRST)
+struct S8 {
+ void foo();
+};
+#elif defined(SECOND)
+struct S8 {
+ void foo() {}
+};
+#else
+S8 s8;
+// expected-error@first.h:* {{'S8' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S9 {
+ void foo() { int y = 5; }
+};
+#elif defined(SECOND)
+struct S9 {
+ void foo() { int x = 5; }
+};
+#else
+S9 s9;
+// expected-error@first.h:* {{'S9' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S10 {
+ struct {
+ int x;
+ } a;
+};
+#elif defined(SECOND)
+struct S10 {
+ struct {
+ int x;
+ int y;
+ } a;
+};
+#else
+S10 s10;
+// expected-error-re@second.h:* {{'S10::(anonymous struct)::y' from module 'second' is not present in definition of 'S10::(anonymous struct at {{.*}}first.h:{{[0-9]*}}:{{[0-9]*}})' in module 'first'}}
+// expected-note@first.h:* {{definition has no member 'y'}}
+
+// expected-error@first.h:* {{'S10' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S11 {
+ void foo() { int y = sizeof(int); }
+};
+#elif defined(SECOND)
+struct S11 {
+ void foo() { int y = sizeof(double); }
+};
+#else
+S11 s11;
+// expected-error@first.h:* {{'S11' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S12 {
+ int x = sizeof(x);
+ int y = sizeof(x);
+};
+#elif defined(SECOND)
+struct S12 {
+ int x = sizeof(x);
+ int y = sizeof(y);
+};
+#else
+S12 s12;
+// expected-error@first.h:* {{'S12' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S13 {
+ template <typename A> void foo();
+};
+#elif defined(SECOND)
+struct S13 {
+ template <typename B> void foo();
+};
+#else
+S13 s13;
+// expected-error@first.h:* {{'S13' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S14 {
+ template <typename A, typename B> void foo();
+};
+#elif defined(SECOND)
+struct S14 {
+ template <typename A> void foo();
+};
+#else
+S14 s14;
+// expected-error@second.h:* {{'S14::foo' from module 'second' is not present in definition of 'S14' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'foo' does not match}}
+#endif
+
+#if defined(FIRST)
+template <typename T>
+struct S15 : T {
+ void foo() {
+ int x = __builtin_offsetof(T, first);
+ }
+};
+#elif defined(SECOND)
+template <typename T>
+struct S15 : T {
+ void foo() {
+ int x = __builtin_offsetof(T, second);
+ }
+};
+#else
+template <typename T>
+void Test15() {
+ S15<T> s15;
+// expected-error@first.h:* {{'S15' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+}
+#endif
+
+#if defined(FIRST)
+struct S16 {
+ template <template<int = 0> class Y>
+ void foo() {
+ Y<> y;
+ }
+};
+#elif defined(SECOND)
+struct S16 {
+ template <template<int = 1> class Y>
+ void foo() {
+ Y<> y;
+ }
+};
+#else
+void TestS16() {
+ S16 s16;
+}
+// TODO: Error here
+// expected-err or@first.h:* {{'S16' has different definitions in different modules; definition in module 'first' is here}}
+// expected-no te@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S17 {
+ template <template <typename> class T>
+ static int foo(int a = 1);
+ template <template <typename> class T, template <typename> class U>
+ using Q_type = T<int>;
+};
+#elif defined(SECOND)
+struct S17 {
+ template <template <typename> class T>
+ static int foo(int a = 1);
+ template <template <typename> class T, template <typename> class U>
+ using Q_type = U<int>;
+};
+#else
+S17 s17;
+// expected-error@second.h:* {{'S17::Q_type' from module 'second' is not present in definition of 'S17' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'Q_type' does not match}}
+#endif
+
+#if defined(FIRST)
+struct S18 {
+ enum E { X1 };
+};
+#elif defined(SECOND)
+struct S18 {
+ enum X { X1 };
+};
+#else
+S18 s18;
+// expected-error@second.h:* {{'S18::X' from module 'second' is not present in definition of 'S18' in module 'first'}}
+// expected-note@first.h:* {{definition has no member 'X'}}
+#endif
+
+#if defined(FIRST)
+struct S19 {
+ enum E { X1 };
+};
+#elif defined(SECOND)
+struct S19 {
+ enum E { X1, X2 };
+};
+#else
+S19 s19;
+// expected-error@first.h:* {{'S19' has different definitions in different modules; first difference is definition in module 'first' found enum 'E' has 1 element}}
+// expected-note@second.h:* {{but in 'second' found enum 'E' has 2 elements}}
+// expected-error@second.h:* {{'S19::E::X2' from module 'second' is not present in definition of 'S19::E' in module 'first'}}
+// expected-note@first.h:* {{definition has no member 'X2'}}
+#endif
+
+#if defined(FIRST)
+struct S20 {
+ enum E { X1 = 1 };
+};
+#elif defined(SECOND)
+struct S20 {
+ enum E { X1 = 5};
+};
+#else
+S20 s20;
+// expected-error@first.h:* {{'S20' has different definitions in different modules; first difference is definition in module 'first' found element 'X1' in enum 'E' with initializer}}
+// expected-note@second.h:* {{but in 'second' found element 'X1' in enum 'E' with different initializer}}
+#endif
+
+#if defined(FIRST)
+struct S21 {
+ void foo() {
+ label:
+ ;
+ }
+};
+#elif defined(SECOND)
+struct S21 {
+ void foo() {
+ ;
+ }
+};
+#else
+S21 s21;
+// expected-error@first.h:* {{'S21' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S22 {
+ void foo() {
+ label_first:
+ ;
+ }
+};
+#elif defined(SECOND)
+struct S22 {
+ void foo() {
+ label_second:
+ ;
+ }
+};
+#else
+S22 s22;
+// expected-error@first.h:* {{'S22' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S23 {
+ typedef int a;
+ typedef char b;
+};
+#elif defined(SECOND)
+struct S23 {
+ typedef char a;
+ typedef int b;
+};
+#else
+S23 s23;
+// expected-error@second.h:* {{'S23::a' from module 'second' is not present in definition of 'S23' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'a' does not match}}
+// expected-error@second.h:* {{'S23::b' from module 'second' is not present in definition of 'S23' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'b' does not match}}
+#endif
+
+#if defined(FIRST)
+struct S24 {
+ inline int foo();
+};
+#elif defined(SECOND)
+struct S24 {
+ int foo();
+};
+#else
+S24 s24;
+// expected-error@first.h:* {{'S24' has different definitions in different modules; first difference is definition in module 'first' found method 'foo' is inline}}
+// expected-note@second.h:* {{but in 'second' found method 'foo' is not inline}}
+#endif
+
+#if defined(FIRST)
+struct S25 {
+ int x;
+ S25() : x(5) {}
+};
+#elif defined(SECOND)
+struct S25 {
+ int x;
+ S25() {}
+};
+#else
+S25 s25;
+// expected-error@first.h:* {{'S25' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S26 {
+ int x;
+ S26() : x(5) {}
+};
+#elif defined(SECOND)
+struct S26 {
+ int x;
+ S26() : x(2) {}
+};
+#else
+S26 s26;
+// expected-error@first.h:* {{'S26' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S27 {
+ explicit S27(int) {}
+ S27() {}
+};
+#elif defined(SECOND)
+struct S27 {
+ S27(int) {}
+ S27() {}
+};
+#else
+S27 s27;
+// expected-error@first.h:* {{'S27' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST) || defined(SECOND)
+struct Base1 {
+ Base1();
+ Base1(int);
+ Base1(double);
+};
+
+struct Base2 {
+ Base2();
+ Base2(int);
+ Base2(double);
+};
+#endif
+
+#if defined(FIRST)
+struct S28 : public Base1 {};
+#elif defined(SECOND)
+struct S28 : public Base2 {};
+#else
+S28 s28;
+// expected-error@first.h:* {{'S28' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S29 : virtual Base1 {};
+#elif defined(SECOND)
+struct S29 : virtual Base2 {};
+#else
+S29 s29;
+// expected-error@first.h:* {{'S29' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S30 : public Base1 {
+ S30() : Base1(1) {}
+};
+#elif defined(SECOND)
+struct S30 : public Base1 {
+ S30() : Base1(1.0) {}
+};
+#else
+S30 s30;
+// expected-error@first.h:* {{'S30' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S31 : virtual Base1 {
+ S31() : Base1(1) {}
+};
+#elif defined(SECOND)
+struct S31 : virtual Base1 {
+ S31() : Base1(1.0) {}
+};
+#else
+S31 s31;
+// expected-error@first.h:* {{'S31' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S32 : public Base1, Base2 {
+ S32() : Base1(1), Base2(1.0) {}
+};
+#elif defined(SECOND)
+struct S32 : public Base2, Base1 {
+ S32() : Base2(1), Base1(1.0) {}
+};
+#else
+S32 s32;
+// expected-error@first.h:* {{'S32' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S33 {
+ S33() : S33(5) {}
+ S33(int) {int a;}
+};
+#elif defined(SECOND)
+struct S33 {
+ S33() : S33(5) {}
+ S33(int) {}
+};
+#else
+S33 s33;
+// expected-error@first.h:* {{'S33' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S34 {
+ operator bool();
+};
+#elif defined(SECOND)
+struct S34 {
+ operator int();
+};
+#else
+S34 s34;
+// expected-error@second.h:* {{'S34::operator int' from module 'second' is not present in definition of 'S34' in module 'first'}}
+// expected-note@first.h:* {{definition has no member 'operator int'}}
+#endif
+
+#if defined(FIRST)
+struct S35 {
+ explicit operator bool();
+};
+#elif defined(SECOND)
+struct S35 {
+ operator bool();
+};
+#else
+S35 s35;
+// expected-error@first.h:* {{'S35' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S36 {
+ int x : 3;
+};
+#elif defined(SECOND)
+struct S36 {
+ int x : 4;
+};
+#else
+S36 s36;
+// expected-error@first.h:* {{'S36' has different definitions in different modules; first difference is definition in module 'first' found bitfield 'x'}}
+// expected-note@second.h:* {{but in 'second' found bitfield 'x'}}
+#endif
+
+#if defined(FIRST)
+struct S37 {
+ mutable int x;
+ int y;
+};
+#elif defined(SECOND)
+struct S37 {
+ int x;
+ mutable int y;
+};
+#else
+S37 s37;
+// expected-error@first.h:* {{'S37' has different definitions in different modules; first difference is definition in module 'first' found mutable 'x'}}
+// expected-note@second.h:* {{but in 'second' found non-mutable 'x'}}
+#endif
+
+#if defined(FIRST)
+template <class X>
+struct S38 { };
+#elif defined(SECOND)
+template <class Y>
+struct S38 { };
+#else
+S38<int> s38;
+// expected-error@first.h:* {{'S38' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+template <class X = int>
+struct S39 { X x; };
+#elif defined(SECOND)
+template <class X = double>
+struct S39 { X x; };
+#else
+S39<> s39;
+// expected-error@first.h:* {{'S39' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+template <int X = 5>
+struct S40 { int x = X; };
+#elif defined(SECOND)
+template <int X = 7>
+struct S40 { int x = X; };
+#else
+S40<> s40;
+// expected-error@first.h:* {{'S40' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+
+#endif
+
+#if defined(FIRST)
+template <int> class T41a{};
+template <template<int> class T = T41a>
+struct S41 {};
+#elif defined(SECOND)
+template <int> class T41b{};
+template <template<int> class T = T41b>
+struct S41 {};
+#else
+using ::S41;
+// expected-error@first.h:* {{'S41' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+struct S42 {
+ void foo() const {}
+ void bar() {}
+};
+#elif defined(SECOND)
+struct S42 {
+ void foo() {}
+ void bar() const {}
+};
+#else
+S42 s42;
+// expected-error@second.h:* {{'S42::bar' from module 'second' is not present in definition of 'S42' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'bar' does not match}}
+// expected-error@second.h:* {{'S42::foo' from module 'second' is not present in definition of 'S42' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'foo' does not match}}
+#endif
+
+#if defined(FIRST)
+struct S43 {
+ static constexpr int x = 1;
+ int y = 1;
+};
+#elif defined(SECOND)
+struct S43 {
+ int x = 1;
+ static constexpr int y = 1;
+};
+#else
+S43 s43;
+// expected-error@second.h:* {{'S43::x' from module 'second' is not present in definition of 'S43' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'x' does not match}}
+// expected-error@second.h:* {{'S43::y' from module 'second' is not present in definition of 'S43' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'y' does not match}}
+//#endif
+#endif
+
+#if defined(FIRST)
+void f44();
+struct S44 {
+ friend void f44();
+};
+#elif defined(SECOND)
+void g44();
+struct S44 {
+ friend void g44();
+};
+#else
+S44 s44;
+// expected-error@first.h:* {{'S44' has different definitions in different modules; first difference is definition in module 'first' found friend 'f44'}}
+// expected-note@second.h:* {{but in 'second' found other friend 'g44'}}
+#endif
+
+#if defined(FIRST)
+struct S45 { int n : 1; };
+#elif defined(SECOND)
+struct S45 { int n = 1; };
+#else
+S45 s45;
+// expected-error@first.h:* {{'S45' has different definitions in different modules; first difference is definition in module 'first' found bitfield 'n'}}
+// expected-note@second.h:* {{but in 'second' found field 'n'}}
+#endif
+
+#if defined(FIRST)
+struct S46 {
+ int operator+(int) { return 0; }
+};
+#elif defined(SECOND)
+struct S46 {
+ int operator-(int) { return 0; }
+};
+#else
+S46 s46;
+// expected-error@second.h:* {{'S46::operator-' from module 'second' is not present in definition of 'S46' in module 'first'}}
+// expected-note@first.h:* {{definition has no member 'operator-'}}
+#endif
+
+#if defined(FIRST)
+template <typename T>
+struct S47 {
+ int foo(int);
+ float foo(float);
+ int bar(int);
+ float bar(float);
+ int x = foo(T());
+};
+#elif defined(SECOND)
+template <typename T>
+struct S47 {
+ int foo(int);
+ float foo(float);
+ int bar(int);
+ float bar(float);
+ int x = bar(T());
+};
+#else
+template <typename T>
+using S48 = S47<T>;
+// expected-error@first.h:* {{'S47' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+template <typename T>
+struct S49 {
+ int operator+(int);
+ float operator+(float);
+ int operator-(int);
+ float operator-(float);
+ int x = S49() + T();
+};
+#elif defined(SECOND)
+template <typename T>
+struct S49 {
+ int operator+(int);
+ float operator+(float);
+ int operator-(int);
+ float operator-(float);
+ int x = S49() - T();
+};
+#else
+template <typename T>
+using S50 = S49<T>;
+// expected-error@first.h:* {{'S49' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+namespace A51 {
+ void foo();
+}
+struct S51 {
+ S51() {
+ A51::foo();
+ }
+};
+#elif defined(SECOND)
+namespace B51 {
+ void foo();
+}
+struct S51 {
+ S51() {
+ B51::foo();
+ }
+};
+#else
+S51 s51;
+// expected-error@first.h:* {{'S51' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+namespace N52 {
+ void foo();
+}
+struct S52 {
+ S52() {
+ N52::foo();
+ }
+};
+#elif defined(SECOND)
+namespace N52 {
+ void foo();
+}
+struct S52 {
+ S52() {
+ ::N52::foo();
+ }
+};
+#else
+S52 s52;
+// expected-error@first.h:* {{'S52' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+namespace N53 {
+ struct foo {
+ static int bar();
+ };
+ using A = foo;
+}
+struct S53 {
+ S53() {
+ N53::A::bar();
+ }
+};
+#elif defined(SECOND)
+namespace N53 {
+ struct foo {
+ static int bar();
+ };
+ using B = foo;
+}
+struct S53 {
+ S53() {
+ N53::B::bar();
+ }
+};
+#else
+S53 s53;
+// expected-error@first.h:* {{'S53' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+namespace N54 {
+namespace A {
+void foo();
+}
+namespace AA = A;
+}
+
+struct S54 {
+ S54() {
+ N54::AA::foo();
+ }
+};
+#elif defined(SECOND)
+namespace N54 {
+namespace B {
+void foo();
+}
+namespace BB = B;
+}
+
+struct S54 {
+ S54() {
+ N54::BB::foo();
+ }
+};
+#else
+S54 s54;
+// expected-error@first.h:* {{'S54' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+namespace N55 {
+namespace A {
+void foo();
+}
+namespace X = A;
+}
+
+struct S55 {
+ S55() {
+ N55::X::foo();
+ }
+};
+#elif defined(SECOND)
+namespace N55 {
+namespace B {
+void foo();
+}
+namespace X = B;
+}
+
+struct S55 {
+ S55() {
+ N55::X::foo();
+ }
+};
+#else
+S55 s55;
+// expected-error@first.h:* {{'S55' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+#if defined(FIRST)
+template<int> struct foo56{};
+template <template<int> class T>
+struct S56 {};
+struct S57 {
+ S56<foo56> a;
+};
+#elif defined(SECOND)
+template<int> struct bar56{};
+template <template<int> class T>
+struct S56 {};
+struct S57 {
+ S56<bar56> a;
+};
+#else
+S57 s57;
+// expected-error@second.h:* {{'S57::a' from module 'second' is not present in definition of 'S57' in module 'first'}}
+// expected-note@first.h:* {{declaration of 'a' does not match}}
+#endif
+
+#if defined(FIRST)
+template<int> struct foo58{};
+template <template<int> class T>
+struct S58 {};
+struct S59 {
+ S58<foo58> a;
+};
+#elif defined(SECOND)
+template<int> struct foo58{};
+template <template<int> class T>
+struct S58 {};
+struct S59 {
+ S58<::foo58> a;
+};
+#else
+S59 s59;
+// expected-error@first.h:* {{'S59' has different definitions in different modules; definition in module 'first' is here}}
+// expected-note@second.h:* {{definition in module 'second' is here}}
+#endif
+
+
+#if defined(FIRST)
+struct S60a {};
+
+typedef S60a S61;
+
+struct S62 {
+ S61 s61;
+};
+#elif defined(SECOND)
+struct S60b {};
+
+typedef S60b S61;
+
+struct S62 {
+ S61 s61;
+};
+#else
+S62 s62;
+// expected-error@second.h:* {{'S62::s61' from module 'second' is not present in definition of 'S62' in module 'first'}}
+// expected-note@first.h:* {{declaration of 's61' does not match}}
+#endif
+
+// Don't warn on these cases
+#if defined(FIRST)
+void f01(int = 0);
+struct S01 { friend void f01(int); };
+#elif defined(SECOND)
+void f01(int);
+struct S01 { friend void f01(int); };
+#else
+S01 s01;
+#endif
+
+#if defined(FIRST)
+template <template <int> class T> class Wrapper {};
+
+template <int N> class SelfReference {
+ SelfReference(Wrapper<::SelfReference> &R) {}
+};
+
+struct Xx {
+ struct Yy {
+ };
+};
+
+Xx::Xx::Xx::Yy yy;
+
+namespace NNS {
+template <typename> struct Foo;
+template <template <class> class T = NNS::Foo>
+struct NestedNamespaceSpecifier {};
+}
+#endif
+
+#if defined(FIRST)
+struct S02 { };
+void S02Construct() {
+ S02 foo;
+ S02 bar = foo;
+ S02 baz(bar);
+}
+#elif defined(SECOND)
+struct S02 { };
+#else
+S02 s02;
+#endif
+
+#if defined(FIRST)
+template <class>
+struct S03 {};
+#elif defined(SECOND)
+template <class>
+struct S03 {};
+#else
+S03<int> s03;
+#endif
+
+#if defined(FIRST)
+template <class T>
+struct S04 {
+ T t;
+};
+#elif defined(SECOND)
+template <class T>
+struct S04 {
+ T t;
+};
+#else
+S03<int> s04;
+#endif
+
+#if defined(FIRST)
+template <class T>
+class Wrapper05;
+template <class T>
+struct S05 {
+ Wrapper05<T> t;
+};
+#elif defined(SECOND)
+template <class T>
+class Wrapper05;
+template <class T>
+struct S05 {
+ Wrapper05<T> t;
+};
+#else
+template <class T>
+class Wrapper05{};
+S05<int> s05;
+#endif
+
+#if defined(FIRST)
+enum E06 : int;
+struct S06 {
+ void get(E06) {}
+};
+#elif defined(SECOND)
+enum E06 : int { A06 };
+struct S06 {
+ void get(E06) {}
+};
+#else
+S06 s06;
+#endif
+
+#if defined(FIRST)
+struct S07a {};
+struct S07 {
+ struct S07a *ptr;
+};
+#elif defined(SECOND)
+struct S07 {
+ struct S07a *ptr;
+};
+#else
+S07 s07;
+#endif
+
+#if defined(FIRST)
+struct S08a;
+struct S08 {
+ struct S08a *ptr;
+};
+#elif defined(SECOND)
+struct S08 {
+ struct S08a *ptr;
+};
+#else
+S08 s08;
+#endif
+
+// TODO: Error on these cases.
+#if defined(FIRST)
+enum E { E1 };
+#elif defined(SECOND)
+enum E { E1, E2 };
+#else
+E e;
+#endif
+
+#if defined(FIRST)
+int foo() { return 1; }
+#elif defined(SECOND)
+int foo() { return 2; }
+#else
+int number = foo();
+#endif
+
+// Keep macros contained to one file.
+#ifdef FIRST
+#undef FIRST
+#endif
+#ifdef SECOND
+#undef SECOND
+#endif
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