1 // REQUIRES: x86-registered-target
2 // REQUIRES: nvptx-registered-target
3
4 // Make sure we don't emit vtables for classes with methods that have
5 // inappropriate target attributes. Currently it's mostly needed in
6 // order to avoid emitting vtables for host-only classes on device
7 // side where we can't codegen them.
8
9 // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s \
10 // RUN: | FileCheck %s -check-prefix=CHECK-HOST -check-prefix=CHECK-BOTH
11 // RUN: %clang_cc1 -triple nvptx64-nvidia-cuda -fcuda-is-device -emit-llvm -o - %s \
12 // RUN: | FileCheck %s -check-prefix=CHECK-DEVICE -check-prefix=CHECK-BOTH
13
14 #include "Inputs/cuda.h"
15
16 struct H {
17 virtual void method();
18 };
19 //CHECK-HOST: @_ZTV1H =
20 //CHECK-HOST-SAME: @_ZN1H6methodEv
21 //CHECK-DEVICE-NOT: @_ZTV1H =
22
23 struct D {
24 __device__ virtual void method();
25 };
26
27 //CHECK-DEVICE: @_ZTV1D
28 //CHECK-DEVICE-SAME: @_ZN1D6methodEv
29 //CHECK-HOST-NOT: @_ZTV1D
30
31 // This is the case with mixed host and device virtual methods. It's
32 // impossible to emit a valid vtable in that case because only host or
33 // only device methods would be available during host or device
34 // compilation. At the moment Clang (and NVCC) emit NULL pointers for
35 // unavailable methods,
36 struct HD {
37 virtual void h_method();
38 __device__ virtual void d_method();
39 };
40 // CHECK-BOTH: @_ZTV2HD
41 // CHECK-DEVICE-NOT: @_ZN2HD8h_methodEv
42 // CHECK-DEVICE-SAME: null
43 // CHECK-DEVICE-SAME: @_ZN2HD8d_methodEv
44 // CHECK-HOST-SAME: @_ZN2HD8h_methodEv
45 // CHECK-HOST-NOT: @_ZN2HD8d_methodEv
46 // CHECK-HOST-SAME: null
47 // CHECK-BOTH-SAME: ]
48
method()49 void H::method() {}
50 //CHECK-HOST: define void @_ZN1H6methodEv
51
method()52 void __device__ D::method() {}
53 //CHECK-DEVICE: define void @_ZN1D6methodEv
54
d_method()55 void __device__ HD::d_method() {}
56 // CHECK-DEVICE: define void @_ZN2HD8d_methodEv
57 // CHECK-HOST-NOT: define void @_ZN2HD8d_methodEv
h_method()58 void HD::h_method() {}
59 // CHECK-HOST: define void @_ZN2HD8h_methodEv
60 // CHECK-DEVICE-NOT: define void @_ZN2HD8h_methodEv
61
62