[PATCH] D68753: [CUDA][HIP} Add a test for constexpr default ctor

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
yaxunl added a reviewer: tra.

https://reviews.llvm.org/D68753

Files:
  test/SemaCUDA/constexpr-ctor.cu


Index: test/SemaCUDA/constexpr-ctor.cu
===================================================================
--- /dev/null
+++ test/SemaCUDA/constexpr-ctor.cu
@@ -0,0 +1,43 @@
+// RUN: %clang_cc1 -std=c++11 -triple nvptx64-nvidia-cuda -fsyntax-only \
+// RUN:            -fcuda-is-device -verify=dev -verify-ignore-unexpected=note %s
+// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-linux-gnu -fsyntax-only \
+// RUN:            -verify=host -verify-ignore-unexpected=note %s
+
+// host-no-diagnostics
+
+#include "Inputs/cuda.h"
+
+struct A {
+  A();
+};
+
+template <class T> struct B {
+  T a;
+  constexpr B() = default;
+};
+
+template <class T> struct C {
+  T a;
+  constexpr C() = default; // dev-error{{reference to __host__ function 'A' in __host__ __device__ function}}
+};
+
+template <class T> struct D {
+  T a;
+  constexpr D() = default; // dev-error{{reference to __host__ function 'A' in __host__ __device__ function}}
+};
+
+__host__ void f() { B<A> x; }
+__device__ void f() { C<A> x; } // causes C<A>::C emitted on device
+
+struct foo {
+  __host__ foo() { B<A> x; }
+  __device__ foo() { D<A> x; }
+};
+
+__host__ void g() { foo x; }
+__device__ void g() { foo x; } // causes D<A>::D emitted on device
+
+struct bar {
+  __host__ bar() { B<A> x; }
+  __device__ bar() { B<A> x; } // no error since no instantiation of bar
+};


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