1; RUN: not llc -march=amdgcn -mtriple=amdgcn---amdgiz -tailcallopt < %s 2>&1 | FileCheck -check-prefix=GCN %s
2; RUN: not llc -march=r600 -mtriple=r600---amdgiz -mcpu=cypress -tailcallopt < %s 2>&1 | FileCheck -check-prefix=R600 %s
3
4declare i32 @external_function(i32) nounwind
5
6; GCN-NOT: error
7; R600: in function test_call_external{{.*}}: unsupported call to function external_function
8define amdgpu_kernel void @test_call_external(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
9  %b_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
10  %a = load i32, i32 addrspace(1)* %in
11  %b = load i32, i32 addrspace(1)* %b_ptr
12  %c = call i32 @external_function(i32 %b) nounwind
13  %result = add i32 %a, %c
14  store i32 %result, i32 addrspace(1)* %out
15  ret void
16}
17
18define i32 @defined_function(i32 %x) nounwind noinline {
19  %y = add i32 %x, 8
20  ret i32 %y
21}
22
23; GCN-NOT: error
24; R600: in function test_call{{.*}}: unsupported call to function defined_function
25define amdgpu_kernel void @test_call(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
26  %b_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
27  %a = load i32, i32 addrspace(1)* %in
28  %b = load i32, i32 addrspace(1)* %b_ptr
29  %c = call i32 @defined_function(i32 %b) nounwind
30  %result = add i32 %a, %c
31  store i32 %result, i32 addrspace(1)* %out
32  ret void
33}
34
35; GCN: error: <unknown>:0:0: in function test_tail_call i32 (i32 addrspace(1)*, i32 addrspace(1)*): unsupported required tail call to function defined_function
36; R600: in function test_tail_call{{.*}}: unsupported call to function defined_function
37define i32 @test_tail_call(i32 addrspace(1)* %out, i32 addrspace(1)* %in) {
38  %b_ptr = getelementptr i32, i32 addrspace(1)* %in, i32 1
39  %a = load i32, i32 addrspace(1)* %in
40  %b = load i32, i32 addrspace(1)* %b_ptr
41  %c = tail call i32 @defined_function(i32 %b)
42  ret i32 %c
43}
44
45declare void @external.varargs(i32, double, i64, ...)
46
47; GCN: error: <unknown>:0:0: in function test_call_varargs void (): unsupported call to variadic function external.varargs
48; R600: in function test_call_varargs{{.*}}: unsupported call to function external.varargs
49define void @test_call_varargs() {
50  call void (i32, double, i64, ...) @external.varargs(i32 42, double 1.0, i64 12, i8 3, i16 1, i32 4, float 1.0, double 2.0)
51  ret void
52}
53
54declare i32 @extern_variadic(...)
55
56; GCN: in function test_tail_call_bitcast_extern_variadic{{.*}}: unsupported indirect call to function extern_variadic
57; R600: in function test_tail_call_bitcast_extern_variadic{{.*}}: unsupported call to function extern_variadic
58define i32 @test_tail_call_bitcast_extern_variadic(<4 x float> %arg0, <4 x float> %arg1, i32 %arg2) {
59  %add = fadd <4 x float> %arg0, %arg1
60  %call = tail call i32 bitcast (i32 (...)* @extern_variadic to i32 (<4 x float>)*)(<4 x float> %add)
61  ret i32 %call
62}
63
64; GCN: :0:0: in function test_indirect_call void (void ()*): unsupported indirect call to function <unknown>
65; R600: in function test_indirect_call{{.*}}: unsupported call to function <unknown>
66define void @test_indirect_call(void()* %fptr) {
67  call void %fptr()
68  ret void
69}
70
71; GCN: :0:0: in function test_call_from_shader i32 (): unsupported call from graphics shader of function defined_function
72; R600: in function test_call{{.*}}: unsupported call to function defined_function
73define amdgpu_ps i32 @test_call_from_shader() {
74  %call = call i32 @defined_function(i32 0)
75  ret i32 %call
76}
77