1// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -ffake-address-space-map -cl-std=CL2.0 -emit-llvm -o - | FileCheck %s
2// RUN: %clang_cc1 %s -triple x86_64-unknown-linux-gnu -O0 -cl-std=CL2.0 -emit-llvm -o - | FileCheck --check-prefix=CHECK-NOFAKE %s
3// When -ffake-address-space-map is not used, all addr space mapped to 0 for x86_64.
4
5// test that we generate address space casts everywhere we need conversions of
6// pointers to different address spaces
7
8// CHECK: define{{.*}} void @test
9void test(global int *arg_glob, generic int *arg_gen,
10          __attribute__((opencl_global_device)) int *arg_device,
11          __attribute__((opencl_global_host)) int *arg_host) {
12  int var_priv;
13  arg_gen = arg_glob; // implicit cast global -> generic
14  // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
15  // CHECK-NOFAKE-NOT: addrspacecast
16
17  arg_gen = &var_priv; // implicit cast with obtaining adr, private -> generic
18  // CHECK: %{{[._a-z0-9]+}} = addrspacecast i32* %{{[._a-z0-9]+}} to i32 addrspace(4)*
19  // CHECK-NOFAKE-NOT: addrspacecast
20
21  arg_glob = (global int *)arg_gen; // explicit cast
22  // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(4)* %{{[0-9]+}} to i32 addrspace(1)*
23  // CHECK-NOFAKE-NOT: addrspacecast
24
25  global int *var_glob =
26      (global int *)arg_glob; // explicit cast in the same address space
27  // CHECK-NOT: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(1)*
28  // CHECK-NOFAKE-NOT: addrspacecast
29
30  var_priv = arg_gen - arg_glob; // arithmetic operation
31  // CHECK: %{{.*}} = ptrtoint i32 addrspace(4)* %{{.*}} to i64
32  // CHECK: %{{.*}} = ptrtoint i32 addrspace(1)* %{{.*}} to i64
33  // CHECK-NOFAKE: %{{.*}} = ptrtoint i32* %{{.*}} to i64
34  // CHECK-NOFAKE: %{{.*}} = ptrtoint i32* %{{.*}} to i64
35
36  var_priv = arg_gen > arg_glob; // comparison
37  // CHECK: %{{[0-9]+}} = addrspacecast i32 addrspace(1)* %{{[0-9]+}} to i32 addrspace(4)*
38
39  generic void *var_gen_v = arg_glob;
40  // CHECK: addrspacecast
41  // CHECK-NOT: bitcast
42  // CHECK-NOFAKE: bitcast
43  // CHECK-NOFAKE-NOT: addrspacecast
44
45  arg_glob = arg_device; // implicit cast
46  // CHECK: addrspacecast
47  // CHECK-NOFAKE-NOT: addrspacecast
48
49  arg_glob = arg_host; // implicit cast
50  // CHECK: addrspacecast
51  // CHECK-NOFAKE-NOT: addrspacecast
52
53  arg_glob = (global int *)arg_device; // explicit cast
54  // CHECK: addrspacecast
55  // CHECK-NOFAKE-NOT: addrspacecast
56
57  arg_glob = (global int *)arg_host; // explicit cast
58  // CHECK: addrspacecast
59  // CHECK-NOFAKE-NOT: addrspacecast
60
61  arg_device = (__attribute((opencl_global_device)) int *)arg_glob; // explicit cast
62  // CHECK: addrspacecast
63  // CHECK-NOFAKE-NOT: addrspacecast
64
65  arg_host = (__attribute((opencl_global_host)) int *)arg_glob; // explicit cast
66  // CHECK: addrspacecast
67  // CHECK-NOFAKE-NOT: addrspacecast
68}
69
70// Test ternary operator.
71// CHECK: define{{.*}} void @test_ternary
72void test_ternary(void) {
73  global int *var_glob;
74  generic int *var_gen;
75  generic int *var_gen2;
76  generic float *var_gen_f;
77  generic void *var_gen_v;
78
79  var_gen = var_gen ? var_gen : var_gen2; // operands of the same addr spaces and the same type
80  // CHECK: icmp
81  // CHECK-NOT: addrspacecast
82  // CHECK-NOT: bitcast
83  // CHECK: phi
84  // CHECK: store i32 addrspace(4)* %{{.+}}, i32 addrspace(4)** %{{.+}}
85
86  var_gen = var_gen ? var_gen : var_glob; // operands of overlapping addr spaces and the same type
87  // CHECK: icmp
88  // CHECK-NOT: bitcast
89  // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i32 addrspace(4)*
90  // CHECK: phi
91  // CHECK: store
92
93  typedef int int_t;
94  global int_t *var_glob_typedef;
95  var_gen = var_gen ? var_gen : var_glob_typedef; // operands of overlapping addr spaces and equivalent types
96  // CHECK: icmp
97  // CHECK-NOT: bitcast
98  // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i32 addrspace(4)*
99  // CHECK: phi
100  // CHECK: store
101
102  var_gen_v = var_gen ? var_gen : var_gen_f; // operands of the same addr space and different types
103  // CHECK: icmp
104  // CHECK: %{{.+}} = bitcast i32 addrspace(4)* %{{.+}} to i8 addrspace(4)*
105  // CHECK: %{{.+}} = bitcast float addrspace(4)* %{{.+}} to i8 addrspace(4)*
106  // CHECK: phi
107  // CHECK: store
108
109  var_gen_v = var_gen ? var_glob : var_gen_f; // operands of overlapping addr spaces and different types
110  // CHECK: icmp
111  // CHECK: %{{.+}} = addrspacecast i32 addrspace(1)* %{{.+}} to i8 addrspace(4)*
112  // CHECK: %{{.+}} = bitcast float addrspace(4)* %{{.+}} to i8 addrspace(4)*
113  // CHECK: phi
114  // CHECK: store
115}
116