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Themaister/gist:e4b6219406ca1f1b8bff

Created October 31, 2015 16:45
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gistfile1.txt
// Original source
#version 310 es
layout(local_size_x = 1) in;
layout(std430, binding = 0) writeonly buffer SSBO
{
vec4 data[];
} outdata;
layout(std430, binding = 1) readonly buffer SSBO2
{
vec4 data[];
} indata;
struct Foo
{
vec4 a;
vec4 b;
vec4 c;
vec4 d;
};
layout(std430, binding = 2) readonly buffer SSBO3
{
Foo foos[];
} foobar;
vec4 bar(Foo foo)
{
return foo.a + foo.b + foo.c + foo.d;
}
void baz(out Foo foo)
{
uint ident = gl_GlobalInvocationID.x;
foo.a = indata.data[4u * ident + 0u];
foo.b = indata.data[4u * ident + 1u];
foo.c = indata.data[4u * ident + 2u];
foo.d = indata.data[4u * ident + 3u];
}
void meow(inout Foo foo)
{
foo.a += 10.0;
foo.b += 20.0;
foo.c += 30.0;
foo.d += 40.0;
}
void main()
{
Foo foo;
baz(foo);
meow(foo);
outdata.data[gl_GlobalInvocationID.x] = bar(foo) + bar(foobar.foos[gl_GlobalInvocationID.x]);
}
// GLSL -> glslangValidator -> SPIRV -> GLSL disassembler
#version 310 es
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
struct Foo
{
vec4 a;
vec4 b;
vec4 c;
vec4 d;
};
layout(binding = 1, std430) buffer SSBO2
{
vec4 data[];
} indata;
layout(binding = 0, std430) buffer SSBO
{
vec4 data[];
} outdata;
layout(binding = 2, std430) buffer SSBO3
{
Foo foos[];
} foobar;
vec4 bar(Foo foo);
void baz(out Foo foo);
void meow(inout Foo foo);
void main()
{
Foo param;
baz(param);
Foo foo = param;
Foo param_1 = foo;
meow(param_1);
foo = param_1;
Foo param_2 = foo;
Foo param_3 = foobar.foos[gl_GlobalInvocationID.x];
outdata.data[gl_GlobalInvocationID.x] = (bar(param_2) + bar(param_3));
return;
}
vec4 bar(Foo foo)
{
return (((foo.a + foo.b) + foo.c) + foo.d);
}
void baz(out Foo foo)
{
uint ident = gl_GlobalInvocationID.x;
foo.a = indata.data[((4u * ident) + 0u)];
foo.b = indata.data[((4u * ident) + 1u)];
foo.c = indata.data[((4u * ident) + 2u)];
foo.d = indata.data[((4u * ident) + 3u)];
return;
}
void meow(inout Foo foo)
{
foo.a = (foo.a + vec4(10.000000));
foo.b = (foo.b + vec4(20.000000));
foo.c = (foo.c + vec4(30.000000));
foo.d = (foo.d + vec4(40.000000));
return;
}
// SPIRV
// Module Version 99
// Generated by (magic number): 51a00bb
// Id's are bound by 135
Source ESSL 310
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint GLCompute 4 "main"
ExecutionMode 4 LocalSize 1 1 1
Name 4 "main"
Name 8 "Foo"
MemberName 8(Foo) 0 "a"
MemberName 8(Foo) 1 "b"
MemberName 8(Foo) 2 "c"
MemberName 8(Foo) 3 "d"
Name 12 "bar(struct-Foo-vf4-vf4-vf4-vf41;"
Name 11 "foo"
Name 16 "baz(struct-Foo-vf4-vf4-vf4-vf41;"
Name 15 "foo"
Name 19 "meow(struct-Foo-vf4-vf4-vf4-vf41;"
Name 18 "foo"
Name 41 "ident"
Name 44 "gl_GlobalInvocationID"
Name 48 "SSBO2"
MemberName 48(SSBO2) 0 "data"
Name 50 "indata"
Name 105 "foo"
Name 106 "param"
Name 109 "param"
Name 114 "SSBO"
MemberName 114(SSBO) 0 "data"
Name 116 "outdata"
Name 119 "param"
Name 123 "SSBO3"
MemberName 123(SSBO3) 0 "foos"
Name 125 "foobar"
Name 128 "param"
Decorate 44(gl_GlobalInvocationID) BuiltIn GlobalInvocationId
Decorate 47 ArrayStride 16
MemberDecorate 48(SSBO2) 0 Offset 0
Decorate 48(SSBO2) BufferBlock
Decorate 50(indata) Binding 1
Decorate 113 ArrayStride 16
MemberDecorate 114(SSBO) 0 Offset 0
Decorate 114(SSBO) BufferBlock
Decorate 116(outdata) Binding 0
Decorate 122 ArrayStride 64
MemberDecorate 123(SSBO3) 0 Offset 0
Decorate 123(SSBO3) BufferBlock
Decorate 125(foobar) Binding 2
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8(Foo): TypeStruct 7(fvec4) 7(fvec4) 7(fvec4) 7(fvec4)
9: TypePointer Function 8(Foo)
10: TypeFunction 7(fvec4) 9(ptr)
14: TypeFunction 2 9(ptr)
21: TypeInt 32 1
22: 21(int) Constant 0
23: TypePointer Function 7(fvec4)
26: 21(int) Constant 1
30: 21(int) Constant 2
34: 21(int) Constant 3
39: TypeInt 32 0
40: TypePointer Function 39(int)
42: TypeVector 39(int) 3
43: TypePointer Input 42(ivec3)
44(gl_GlobalInvocationID): 43(ptr) Variable Input
47: TypeRuntimeArray 7(fvec4)
48(SSBO2): TypeStruct 47
49: TypePointer Uniform 48(SSBO2)
50(indata): 49(ptr) Variable Uniform
51: 39(int) Constant 4
54: 39(int) Constant 0
56: TypePointer Uniform 7(fvec4)
62: 39(int) Constant 1
69: 39(int) Constant 2
76: 39(int) Constant 3
81: 6(float) Constant 1092616192
87: 6(float) Constant 1101004800
93: 6(float) Constant 1106247680
99: 6(float) Constant 1109393408
113: TypeRuntimeArray 7(fvec4)
114(SSBO): TypeStruct 113
115: TypePointer Uniform 114(SSBO)
116(outdata): 115(ptr) Variable Uniform
122: TypeRuntimeArray 8(Foo)
123(SSBO3): TypeStruct 122
124: TypePointer Uniform 123(SSBO3)
125(foobar): 124(ptr) Variable Uniform
129: TypePointer Uniform 8(Foo)
4(main): 2 Function None 3
5: Label
105(foo): 9(ptr) Variable Function
106(param): 9(ptr) Variable Function
109(param): 9(ptr) Variable Function
119(param): 9(ptr) Variable Function
128(param): 9(ptr) Variable Function
107: 2 FunctionCall 16(baz(struct-Foo-vf4-vf4-vf4-vf41;) 106(param)
108: 8(Foo) Load 106(param)
Store 105(foo) 108
110: 8(Foo) Load 105(foo)
Store 109(param) 110
111: 2 FunctionCall 19(meow(struct-Foo-vf4-vf4-vf4-vf41;) 109(param)
112: 8(Foo) Load 109(param)
Store 105(foo) 112
117: 42(ivec3) Load 44(gl_GlobalInvocationID)
118: 39(int) CompositeExtract 117 0
120: 8(Foo) Load 105(foo)
Store 119(param) 120
121: 7(fvec4) FunctionCall 12(bar(struct-Foo-vf4-vf4-vf4-vf41;) 119(param)
126: 42(ivec3) Load 44(gl_GlobalInvocationID)
127: 39(int) CompositeExtract 126 0
130: 129(ptr) AccessChain 125(foobar) 22 127
131: 8(Foo) Load 130
Store 128(param) 131
132: 7(fvec4) FunctionCall 12(bar(struct-Foo-vf4-vf4-vf4-vf41;) 128(param)
133: 7(fvec4) FAdd 121 132
134: 56(ptr) AccessChain 116(outdata) 22 118
Store 134 133
Return
FunctionEnd
12(bar(struct-Foo-vf4-vf4-vf4-vf41;): 7(fvec4) Function None 10
11(foo): 9(ptr) FunctionParameter
13: Label
24: 23(ptr) AccessChain 11(foo) 22
25: 7(fvec4) Load 24
27: 23(ptr) AccessChain 11(foo) 26
28: 7(fvec4) Load 27
29: 7(fvec4) FAdd 25 28
31: 23(ptr) AccessChain 11(foo) 30
32: 7(fvec4) Load 31
33: 7(fvec4) FAdd 29 32
35: 23(ptr) AccessChain 11(foo) 34
36: 7(fvec4) Load 35
37: 7(fvec4) FAdd 33 36
ReturnValue 37
FunctionEnd
16(baz(struct-Foo-vf4-vf4-vf4-vf41;): 2 Function None 14
15(foo): 9(ptr) FunctionParameter
17: Label
41(ident): 40(ptr) Variable Function
45: 42(ivec3) Load 44(gl_GlobalInvocationID)
46: 39(int) CompositeExtract 45 0
Store 41(ident) 46
52: 39(int) Load 41(ident)
53: 39(int) IMul 51 52
55: 39(int) IAdd 53 54
57: 56(ptr) AccessChain 50(indata) 22 55
58: 7(fvec4) Load 57
59: 23(ptr) AccessChain 15(foo) 22
Store 59 58
60: 39(int) Load 41(ident)
61: 39(int) IMul 51 60
63: 39(int) IAdd 61 62
64: 56(ptr) AccessChain 50(indata) 22 63
65: 7(fvec4) Load 64
66: 23(ptr) AccessChain 15(foo) 26
Store 66 65
67: 39(int) Load 41(ident)
68: 39(int) IMul 51 67
70: 39(int) IAdd 68 69
71: 56(ptr) AccessChain 50(indata) 22 70
72: 7(fvec4) Load 71
73: 23(ptr) AccessChain 15(foo) 30
Store 73 72
74: 39(int) Load 41(ident)
75: 39(int) IMul 51 74
77: 39(int) IAdd 75 76
78: 56(ptr) AccessChain 50(indata) 22 77
79: 7(fvec4) Load 78
80: 23(ptr) AccessChain 15(foo) 34
Store 80 79
Return
FunctionEnd
19(meow(struct-Foo-vf4-vf4-vf4-vf41;): 2 Function None 14
18(foo): 9(ptr) FunctionParameter
20: Label
82: 23(ptr) AccessChain 18(foo) 22
83: 7(fvec4) Load 82
84: 7(fvec4) CompositeConstruct 81 81 81 81
85: 7(fvec4) FAdd 83 84
86: 23(ptr) AccessChain 18(foo) 22
Store 86 85
88: 23(ptr) AccessChain 18(foo) 26
89: 7(fvec4) Load 88
90: 7(fvec4) CompositeConstruct 87 87 87 87
91: 7(fvec4) FAdd 89 90
92: 23(ptr) AccessChain 18(foo) 26
Store 92 91
94: 23(ptr) AccessChain 18(foo) 30
95: 7(fvec4) Load 94
96: 7(fvec4) CompositeConstruct 93 93 93 93
97: 7(fvec4) FAdd 95 96
98: 23(ptr) AccessChain 18(foo) 30
Store 98 97
100: 23(ptr) AccessChain 18(foo) 34
101: 7(fvec4) Load 100
102: 7(fvec4) CompositeConstruct 99 99 99 99
103: 7(fvec4) FAdd 101 102
104: 23(ptr) AccessChain 18(foo) 34
Store 104 103
Return
FunctionEnd
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