1// RUN: %clang_cc1 %s -triple spir-unknown-unknown -cl-std=clc++ -O0 -emit-llvm -o - | FileCheck %s
2
3typedef int int2 __attribute__((ext_vector_type(2)));
4typedef int int4 __attribute__((ext_vector_type(4)));
5
6struct Storage final {
7  constexpr const float& operator[](const int index) const noexcept {
8    return InternalStorage[index];
9  }
10
11  const float InternalStorage[1];
12};
13
14constexpr Storage getStorage() {
15  return Storage{{1.0f}};
16}
17
18constexpr float compute() {
19  constexpr auto s = getStorage();
20  return 2.0f / (s[0]);
21}
22
23constexpr float FloatConstant = compute();
24
25// CHECK-LABEL: define spir_kernel void @foo
26// CHECK: store float 2.000000e+00
27kernel void foo(global float *x) {
28  *x = FloatConstant;
29}
30
31// Test evaluation of constant vectors.
32// CHECK-LABEL: define spir_kernel void @vecEval
33// CHECK: store i32 3
34// CHECK: store <2 x i32> <i32 22, i32 33>, <2 x i32>
35
36const int oneElt = int4(3).x;
37const int2 twoElts = (int4)(11, 22, 33, 44).yz;
38
39kernel void vecEval(global int *x, global int2 *y) {
40  *x = oneElt;
41  *y = twoElts;
42}
43
44// Test evaluation of vectors initialized through a constexpr function.
45// CHECK-LABEL: define spir_kernel void @vecEval2
46// CHECK: store <2 x i32>
47constexpr int2 addOne(int2 x) {
48  return (int2)(x.x + 1, x.y + 1);
49}
50const int2 fromConstexprFunc = addOne(int2(2));
51
52kernel void vecEval2(global int2 *x) {
53  *x = fromConstexprFunc;
54}
55
56// Test evaluation of vec_step
57// CHECK-LABEL: define spir_kernel void @vec_step_test
58// CHECK: store i32 6
59constexpr int vsize1 = vec_step(fromConstexprFunc);
60constexpr int vsize2 = vec_step(int4);
61
62kernel void vec_step_test(global int *x) {
63  *x = vsize1 + vsize2;
64}
65