1 ; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s --check-prefix=CHECK-SPIRV
3 ; TODO(#60133): Requires updates following opaque pointer migration.
6 %struct.ST = type { i32, i32, i32 }
8 ; CHECK-SPIRV: OpName %[[#struct:]] "struct.ST"
9 ; CHECK-SPIRV: %[[#int:]] = OpTypeInt 32 0
10 ; CHECK-SPIRV: %[[#intP:]] = OpTypePointer Function %[[#int]]
11 ; CHECK-SPIRV: %[[#struct]] = OpTypeStruct %[[#int]] %[[#int]] %[[#int]]
12 ; CHECK-SPIRV: %[[#structP:]] = OpTypePointer Function %[[#struct]]
13 ; CHECK-SPIRV: %[[#structPP:]] = OpTypePointer Function %[[#structP]]
14 ; CHECK-SPIRV: %[[#zero:]] = OpConstant %[[#int]] 0
15 ; CHECK-SPIRV: %[[#one:]] = OpConstant %[[#int]] 1
16 ; CHECK-SPIRV: %[[#two:]] = OpConstant %[[#int]] 2
18 define dso_local spir_func i32 @cmp_func(i8* %p1, i8* %p2) {
20 %retval = alloca i32, align 4
21 %p1.addr = alloca i8*, align 8
22 %p2.addr = alloca i8*, align 8
23 ; CHECK-SPIRV: %[[#s1:]] = OpVariable %[[#structPP]]
24 ; CHECK-SPIRV: %[[#s2:]] = OpVariable %[[#structPP]]
25 %s1 = alloca %struct.ST*, align 8
26 %s2 = alloca %struct.ST*, align 8
27 store i8* %p1, i8** %p1.addr, align 8
28 store i8* %p2, i8** %p2.addr, align 8
29 %0 = load i8*, i8** %p1.addr, align 8
30 ; CHECK-SPIRV: %[[#t1:]] = OpBitcast %[[#structP]]
31 ; CHECK-SPIRV: OpStore %[[#s1]] %[[#t1]]
32 %1 = bitcast i8* %0 to %struct.ST*
33 store %struct.ST* %1, %struct.ST** %s1, align 8
34 %2 = load i8*, i8** %p2.addr, align 8
35 ; CHECK-SPIRV: %[[#t2:]] = OpBitcast %[[#structP]]
36 ; CHECK-SPIRV: OpStore %[[#s2]] %[[#t2]]
37 %3 = bitcast i8* %2 to %struct.ST*
38 store %struct.ST* %3, %struct.ST** %s2, align 8
39 ; CHECK-SPIRV: %[[#t3:]] = OpLoad %[[#structP]] %[[#s1]]
40 ; CHECK-SPIRV: %[[#a1:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t3]] %[[#zero]] %[[#zero]]
41 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#a1]]
42 %4 = load %struct.ST*, %struct.ST** %s1, align 8
43 %a = getelementptr inbounds %struct.ST, %struct.ST* %4, i32 0, i32 0
44 %5 = load i32, i32* %a, align 4
45 ; CHECK-SPIRV: %[[#t4:]] = OpLoad %[[#structP]] %[[#s2]]
46 ; CHECK-SPIRV: %[[#a2:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t4]] %[[#zero]] %[[#zero]]
47 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#a2]]
48 %6 = load %struct.ST*, %struct.ST** %s2, align 8
49 %a1 = getelementptr inbounds %struct.ST, %struct.ST* %6, i32 0, i32 0
50 %7 = load i32, i32* %a1, align 4
51 %cmp = icmp ne i32 %5, %7
52 br i1 %cmp, label %if.then, label %if.end
54 if.then: ; preds = %entry
55 ; CHECK-SPIRV: %[[#t5:]] = OpLoad %[[#structP]] %[[#s1]]
56 ; CHECK-SPIRV: %[[#a_1:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t5]] %[[#zero]] %[[#zero]]
57 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#a_1]]
58 %8 = load %struct.ST*, %struct.ST** %s1, align 8
59 %a2 = getelementptr inbounds %struct.ST, %struct.ST* %8, i32 0, i32 0
60 %9 = load i32, i32* %a2, align 4
61 ; CHECK-SPIRV: %[[#t6:]] = OpLoad %[[#structP]] %[[#s2]]
62 ; CHECK-SPIRV: %[[#a_2:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t6]] %[[#zero]] %[[#zero]]
63 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#a_2]]
64 %10 = load %struct.ST*, %struct.ST** %s2, align 8
65 %a3 = getelementptr inbounds %struct.ST, %struct.ST* %10, i32 0, i32 0
66 %11 = load i32, i32* %a3, align 4
67 %sub = sub nsw i32 %9, %11
68 store i32 %sub, i32* %retval, align 4
71 if.end: ; preds = %entry
72 ; CHECK-SPIRV: %[[#t7:]] = OpLoad %[[#structP]] %[[#s1]]
73 ; CHECK-SPIRV: %[[#b1:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t7]] %[[#zero]] %[[#one]]
74 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#b1]]
75 %12 = load %struct.ST*, %struct.ST** %s1, align 8
76 %b = getelementptr inbounds %struct.ST, %struct.ST* %12, i32 0, i32 1
77 %13 = load i32, i32* %b, align 4
78 ; CHECK-SPIRV: %[[#t8:]] = OpLoad %[[#structP]] %[[#s2]]
79 ; CHECK-SPIRV: %[[#b2:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t8]] %[[#zero]] %[[#one]]
80 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#b2]]
81 %14 = load %struct.ST*, %struct.ST** %s2, align 8
82 %b4 = getelementptr inbounds %struct.ST, %struct.ST* %14, i32 0, i32 1
83 %15 = load i32, i32* %b4, align 4
84 %cmp5 = icmp ne i32 %13, %15
85 br i1 %cmp5, label %if.then6, label %if.end10
87 if.then6: ; preds = %if.end
88 ; CHECK-SPIRV: %[[#t9:]] = OpLoad %[[#structP]] %[[#s1]]
89 ; CHECK-SPIRV: %[[#b_1:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t9]] %[[#zero]] %[[#one]]
90 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#b_1]]
91 %16 = load %struct.ST*, %struct.ST** %s1, align 8
92 %b7 = getelementptr inbounds %struct.ST, %struct.ST* %16, i32 0, i32 1
93 %17 = load i32, i32* %b7, align 4
94 ; CHECK-SPIRV: %[[#t10:]] = OpLoad %[[#structP]] %[[#s2]]
95 ; CHECK-SPIRV: %[[#b_2:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t10]] %[[#zero]] %[[#one]]
96 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#b_2]]
97 %18 = load %struct.ST*, %struct.ST** %s2, align 8
98 %b8 = getelementptr inbounds %struct.ST, %struct.ST* %18, i32 0, i32 1
99 %19 = load i32, i32* %b8, align 4
100 %sub9 = sub nsw i32 %17, %19
101 store i32 %sub9, i32* %retval, align 4
104 if.end10: ; preds = %if.end
105 ; CHECK-SPIRV: %[[#t11:]] = OpLoad %[[#structP]] %[[#s1]]
106 ; CHECK-SPIRV: %[[#c1:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t11]] %[[#zero]] %[[#two]]
107 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#c1]]
108 %20 = load %struct.ST*, %struct.ST** %s1, align 8
109 %c = getelementptr inbounds %struct.ST, %struct.ST* %20, i32 0, i32 2
110 %21 = load i32, i32* %c, align 4
111 ; CHECK-SPIRV: %[[#t12:]] = OpLoad %[[#structP]] %[[#s2]]
112 ; CHECK-SPIRV: %[[#c2:]] = OpInBoundsPtrAccessChain %[[#intP]] %[[#t12]] %[[#zero]] %[[#two]]
113 ; CHECK-SPIRV: %[[#]] = OpLoad %[[#int]] %[[#c2]]
114 %22 = load %struct.ST*, %struct.ST** %s2, align 8
115 %c11 = getelementptr inbounds %struct.ST, %struct.ST* %22, i32 0, i32 2
116 %23 = load i32, i32* %c11, align 4
117 %sub12 = sub nsw i32 %21, %23
118 store i32 %sub12, i32* %retval, align 4
121 return: ; preds = %if.end10, %if.then6, %if.then
122 %24 = load i32, i32* %retval, align 4