SPV: Emit OpSelect when a selection node is simple enough.
Also, ensures it has a type, no disallowed side effects, or performance trade offs.
This commit is contained in:
John Kessenich
@@ -1,12 +1,12 @@
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spv.deepRvalue.frag
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// Module Version 10000
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// Generated by (magic number): 80001
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// Id's are bound by 155
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// Id's are bound by 150
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Capability Shader
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1: ExtInstImport "GLSL.std.450"
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MemoryModel Logical GLSL450
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EntryPoint Fragment 4 "main" 149
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EntryPoint Fragment 4 "main" 144
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ExecutionMode 4 OriginUpperLeft
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Source GLSL 330
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Name 4 "main"
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@@ -21,12 +21,12 @@ spv.deepRvalue.frag
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Name 106 "h"
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Name 107 "i"
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Name 111 "samp2D"
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Name 134 "str"
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MemberName 134(str) 0 "a"
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MemberName 134(str) 1 "b"
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MemberName 134(str) 2 "c"
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Name 136 "t"
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Name 149 "gl_FragColor"
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Name 129 "str"
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MemberName 129(str) 0 "a"
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MemberName 129(str) 1 "b"
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MemberName 129(str) 2 "c"
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Name 131 "t"
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Name 144 "gl_FragColor"
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Decorate 111(samp2D) DescriptorSet 0
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2: TypeVoid
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3: TypeFunction 2
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@@ -75,22 +75,21 @@ spv.deepRvalue.frag
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113: TypeVector 6(float) 2
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114: 6(float) Constant 1056964608
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115: 113(fvec2) ConstantComposite 114 114
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118: TypePointer Function 7(fvec4)
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121: 6(float) Constant 1036831949
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122: TypeBool
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133: TypeArray 113(fvec2) 84
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134(str): TypeStruct 81(int) 133 122(bool)
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135: TypePointer Function 134(str)
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137: 113(fvec2) ConstantComposite 10 11
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138: 6(float) Constant 1082130432
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139: 113(fvec2) ConstantComposite 138 12
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140: 6(float) Constant 1086324736
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141: 113(fvec2) ConstantComposite 140 13
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142: 133 ConstantComposite 137 139 141
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143: 122(bool) ConstantTrue
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144: 134(str) ConstantComposite 82 142 143
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148: TypePointer Output 7(fvec4)
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149(gl_FragColor): 148(ptr) Variable Output
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119: 6(float) Constant 1036831949
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120: TypeBool
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128: TypeArray 113(fvec2) 84
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129(str): TypeStruct 81(int) 128 120(bool)
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130: TypePointer Function 129(str)
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132: 113(fvec2) ConstantComposite 10 11
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133: 6(float) Constant 1082130432
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134: 113(fvec2) ConstantComposite 133 12
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135: 6(float) Constant 1086324736
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136: 113(fvec2) ConstantComposite 135 13
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137: 128 ConstantComposite 132 134 136
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138: 120(bool) ConstantTrue
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139: 129(str) ConstantComposite 82 137 138
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143: TypePointer Output 7(fvec4)
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144(gl_FragColor): 143(ptr) Variable Output
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4(main): 2 Function None 3
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5: Label
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35(m): 34(ptr) Variable Function
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@@ -99,8 +98,7 @@ spv.deepRvalue.frag
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87(g): 79(ptr) Variable Function
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106(h): 79(ptr) Variable Function
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107(i): 79(ptr) Variable Function
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119: 118(ptr) Variable Function
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136(t): 135(ptr) Variable Function
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131(t): 130(ptr) Variable Function
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Store 9(v1) 14
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Store 15(v2) 20
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Store 21(v3) 26
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@@ -172,34 +170,25 @@ spv.deepRvalue.frag
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116: 7(fvec4) ImageSampleImplicitLod 112 115
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117: 6(float) CompositeExtract 116 1
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Store 107(i) 117
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120: 6(float) Load 107(i)
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123: 122(bool) FOrdGreaterThan 120 121
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SelectionMerge 125 None
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BranchConditional 123 124 127
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124: Label
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126: 7(fvec4) Load 9(v1)
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Store 119 126
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Branch 125
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127: Label
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128: 7(fvec4) Load 15(v2)
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Store 119 128
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Branch 125
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125: Label
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129: 79(ptr) AccessChain 119 84
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130: 6(float) Load 129
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131: 6(float) Load 107(i)
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132: 6(float) FAdd 131 130
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Store 107(i) 132
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Store 136(t) 144
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145: 6(float) CompositeExtract 144 1 2 1
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146: 6(float) Load 107(i)
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147: 6(float) FAdd 146 145
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Store 107(i) 147
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150: 6(float) Load 80(f)
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151: 6(float) Load 87(g)
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152: 6(float) Load 106(h)
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153: 6(float) Load 107(i)
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154: 7(fvec4) CompositeConstruct 150 151 152 153
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Store 149(gl_FragColor) 154
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118: 6(float) Load 107(i)
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121: 120(bool) FOrdGreaterThan 118 119
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122: 7(fvec4) Load 9(v1)
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123: 7(fvec4) Load 15(v2)
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124: 7(fvec4) Select 121 122 123
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125: 6(float) CompositeExtract 124 3
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126: 6(float) Load 107(i)
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127: 6(float) FAdd 126 125
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Store 107(i) 127
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Store 131(t) 139
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140: 6(float) CompositeExtract 139 1 2 1
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141: 6(float) Load 107(i)
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142: 6(float) FAdd 141 140
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Store 107(i) 142
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145: 6(float) Load 80(f)
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146: 6(float) Load 87(g)
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147: 6(float) Load 106(h)
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148: 6(float) Load 107(i)
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149: 7(fvec4) CompositeConstruct 145 146 147 148
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Store 144(gl_FragColor) 149
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Return
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FunctionEnd
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