1 files changed, 71 insertions, 0 deletions
diff --git a/clang/test/SemaOpenACC/init-construct.cpp b/clang/test/SemaOpenACC/init-construct.cpp
new file mode 100644
index 000000000000..e4491ee905f3
--- /dev/null
+++ b/clang/test/SemaOpenACC/init-construct.cpp
@@ -0,0 +1,71 @@
+// RUN: %clang_cc1 %s -fopenacc -verify
+
+struct NotConvertible{} NC;
+short getS();
+int getI();
+
+struct AmbiguousConvert{
+  operator int(); // #AMBIG_INT
+  operator short(); // #AMBIG_SHORT
+  operator float();
+} Ambiguous;
+
+struct ExplicitConvertOnly {
+  explicit operator int() const; // #EXPL_CONV
+} Explicit;
+
+void uses() {
+#pragma acc init
+#pragma acc init if (getI() < getS())
+#pragma acc init device_num(getI())
+#pragma acc init device_type(SOMETHING) device_num(getI())
+#pragma acc init device_type(SOMETHING) if (getI() < getS())
+#pragma acc init device_type(SOMETHING) device_num(getI()) if (getI() < getS())
+
+  // expected-error@+1{{value of type 'struct NotConvertible' is not contextually convertible to 'bool'}}
+#pragma acc init if (NC)
+
+  // expected-error@+1{{OpenACC clause 'device_num' requires expression of integer type ('struct NotConvertible' invalid)}}
+#pragma acc init device_num(NC)
+  // expected-error@+3{{multiple conversions from expression type 'struct AmbiguousConvert' to an integral type}}
+  // expected-note@#AMBIG_INT{{conversion to integral type 'int'}}
+  // expected-note@#AMBIG_SHORT{{conversion to integral type 'short'}}
+#pragma acc init device_num(Ambiguous)
+  // expected-error@+2{{OpenACC integer expression requires explicit conversion from 'struct ExplicitConvertOnly' to 'int'}}
+  // expected-note@#EXPL_CONV{{conversion to integral type 'int'}}
+#pragma acc init device_num(Explicit)
+}
+
+template<typename T>
+void TestInst() {
+  T t;
+#pragma acc init
+#pragma acc init if (T::value < T{})
+#pragma acc init device_type(SOMETHING) device_num(getI()) if (getI() < getS())
+#pragma acc init device_type(SOMETHING) device_type(T) device_num(t) if (t < T::value) device_num(getI()) if (getI() < getS())
+
+  // expected-error@+1{{value of type 'const NotConvertible' is not contextually convertible to 'bool'}}
+#pragma acc init if (T::NCValue)
+
+  // expected-error@+1{{OpenACC clause 'device_num' requires expression of integer type ('const NotConvertible' invalid)}}
+#pragma acc init device_num(T::NCValue)
+  // expected-error@+3{{multiple conversions from expression type 'const AmbiguousConvert' to an integral type}}
+  // expected-note@#AMBIG_INT{{conversion to integral type 'int'}}
+  // expected-note@#AMBIG_SHORT{{conversion to integral type 'short'}}
+#pragma acc init device_num(T::ACValue)
+  // expected-error@+2{{OpenACC integer expression requires explicit conversion from 'const ExplicitConvertOnly' to 'int'}}
+  // expected-note@#EXPL_CONV{{conversion to integral type 'int'}}
+#pragma acc init device_num(T::EXValue)
+}
+
+struct HasStuff {
+  static constexpr AmbiguousConvert ACValue;
+  static constexpr ExplicitConvertOnly EXValue;
+  static constexpr NotConvertible NCValue;
+  static constexpr unsigned value = 5;
+  operator char();
+};
+
+void Inst() {
+  TestInst<HasStuff>(); // expected-note {{in instantiation of function template specialization}}
+}