1// RUN: %clang_cc1 -no-opaque-pointers %s -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
2// RUN: %clang_cc1 -no-opaque-pointers %s -cl-std=CL2.0 -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
3// RUN: %clang_cc1 -no-opaque-pointers %s -cl-std=clc++ -emit-llvm -triple spir-unknown-unknown -o - -O0 | FileCheck %s
4//
5// This test covers 5 cases of sampler initialzation:
6//   1. function argument passing
7//      1a. argument is a file-scope variable
8//      1b. argument is a function-scope variable
9//      1c. argument is one of caller function's parameters
10//   2. variable initialization
11//      2a. initializing a file-scope variable with constant addr space qualifier
12//      2b. initializing a function-scope variable
13//      2c. initializing a file-scope variable with const qualifier
14
15#define CLK_ADDRESS_CLAMP_TO_EDGE       2
16#define CLK_NORMALIZED_COORDS_TRUE      1
17#define CLK_FILTER_NEAREST              0x10
18#define CLK_FILTER_LINEAR               0x20
19
20// CHECK: %opencl.sampler_t = type opaque
21
22// Case 2a
23constant sampler_t glb_smp = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_LINEAR;
24// CHECK-NOT: glb_smp
25
26// Case 2c
27const sampler_t glb_smp_const = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_LINEAR;
28// CHECK-NOT: glb_smp_const
29
30int get_sampler_initializer(void);
31
32void fnc4smp(sampler_t s) {}
33// CHECK: define{{.*}} spir_func void [[FUNCNAME:@.*fnc4smp.*]](%opencl.sampler_t addrspace(2)* %
34
35kernel void foo(sampler_t smp_par) {
36  // CHECK-LABEL: define{{.*}} spir_kernel void @foo(%opencl.sampler_t addrspace(2)* %smp_par)
37  // CHECK: [[smp_par_ptr:%[A-Za-z0-9_\.]+]] = alloca %opencl.sampler_t addrspace(2)*
38
39  // Case 2b
40  sampler_t smp = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_NEAREST;
41  // CHECK: [[smp_ptr:%[A-Za-z0-9_\.]+]] = alloca %opencl.sampler_t addrspace(2)*
42  // CHECK: [[SAMP:%[0-9]+]] = call spir_func %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 19)
43  // CHECK: store %opencl.sampler_t addrspace(2)* [[SAMP]], %opencl.sampler_t addrspace(2)** [[smp_ptr]]
44
45  // Case 1b
46  fnc4smp(smp);
47  // CHECK-NOT: call %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 19)
48  // CHECK: [[SAMP:%[0-9]+]] = load %opencl.sampler_t addrspace(2)*, %opencl.sampler_t addrspace(2)** [[smp_ptr]]
49  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
50
51  // Case 1b
52  fnc4smp(smp);
53  // CHECK-NOT: call %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 19)
54  // CHECK: [[SAMP:%[0-9]+]] = load %opencl.sampler_t addrspace(2)*, %opencl.sampler_t addrspace(2)** [[smp_ptr]]
55  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
56
57  // Case 1a/2a
58  fnc4smp(glb_smp);
59  // CHECK: [[SAMP:%[0-9]+]] = call spir_func %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 35)
60  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
61
62  // Case 1a/2c
63  fnc4smp(glb_smp_const);
64  // CHECK: [[SAMP:%[0-9]+]] = call spir_func %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 35)
65  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
66
67  // Case 1c
68  fnc4smp(smp_par);
69  // CHECK: [[SAMP:%[0-9]+]] = load %opencl.sampler_t addrspace(2)*, %opencl.sampler_t addrspace(2)** [[smp_par_ptr]]
70  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
71
72  fnc4smp(5);
73  // CHECK: [[SAMP:%[0-9]+]] = call spir_func %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 5)
74  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
75
76  const sampler_t const_smp = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_LINEAR;
77  fnc4smp(const_smp);
78   // CHECK: [[CONST_SAMP:%[0-9]+]] = call spir_func %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 35)
79  // CHECK: store %opencl.sampler_t addrspace(2)* [[CONST_SAMP]], %opencl.sampler_t addrspace(2)** [[CONST_SMP_PTR:%[a-zA-Z0-9]+]]
80  fnc4smp(const_smp);
81  // CHECK: [[SAMP:%[0-9]+]] = load %opencl.sampler_t addrspace(2)*, %opencl.sampler_t addrspace(2)** [[CONST_SMP_PTR]]
82  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
83
84  constant sampler_t constant_smp = CLK_ADDRESS_CLAMP_TO_EDGE | CLK_NORMALIZED_COORDS_TRUE | CLK_FILTER_LINEAR;
85  fnc4smp(constant_smp);
86  // CHECK: [[SAMP:%[0-9]+]] = call spir_func %opencl.sampler_t addrspace(2)* @__translate_sampler_initializer(i32 35)
87  // CHECK: call spir_func void [[FUNCNAME]](%opencl.sampler_t addrspace(2)* [[SAMP]])
88
89  // TODO: enable sampler initialization with non-constant integer.
90  //const sampler_t const_smp_func_init = get_sampler_initializer();
91}
92