Merge pull request #817 from steve-lunarg/isfinite
HLSL: Decompose OpIsFinite to avoid capability restrictions
This commit is contained in:
John Kessenich
GitHub
commit
5ce1e4aff8
140
Test/baseResults/hlsl.isfinite.frag.out
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140
Test/baseResults/hlsl.isfinite.frag.out
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@ -0,0 +1,140 @@
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hlsl.isfinite.frag
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Shader version: 450
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gl_FragCoord origin is upper left
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0:? Sequence
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0:5 Function Definition: @main( ( temp 4-component vector of float)
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0:5 Function Parameters:
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0:? Sequence
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0:6 Sequence
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0:6 move second child to first child ( temp float)
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0:6 '@finitetmp' ( temp float)
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0:6 f: direct index for structure ( uniform float)
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0:6 'anon@0' (layout( row_major std140) uniform block{ uniform float f})
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0:6 Constant:
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0:6 0 (const uint)
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0:6 logical-and ( temp bool)
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0:6 Negate conditional ( temp bool)
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0:6 isnan ( temp bool)
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0:6 '@finitetmp' ( temp float)
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0:6 Negate conditional ( temp bool)
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0:6 isinf ( temp bool)
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0:6 '@finitetmp' ( temp float)
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0:8 Branch: Return with expression
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0:8 Constant:
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0:8 0.000000
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0:8 0.000000
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0:8 0.000000
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0:8 0.000000
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0:5 Function Definition: main( ( temp void)
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0:5 Function Parameters:
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0:? Sequence
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0:5 move second child to first child ( temp 4-component vector of float)
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0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
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0:5 Function Call: @main( ( temp 4-component vector of float)
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0:? Linker Objects
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0:? 'anon@0' (layout( row_major std140) uniform block{ uniform float f})
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0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
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Linked fragment stage:
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Shader version: 450
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gl_FragCoord origin is upper left
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0:? Sequence
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0:5 Function Definition: @main( ( temp 4-component vector of float)
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0:5 Function Parameters:
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0:? Sequence
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0:6 Sequence
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0:6 move second child to first child ( temp float)
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0:6 '@finitetmp' ( temp float)
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0:6 f: direct index for structure ( uniform float)
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0:6 'anon@0' (layout( row_major std140) uniform block{ uniform float f})
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0:6 Constant:
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0:6 0 (const uint)
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0:6 logical-and ( temp bool)
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0:6 Negate conditional ( temp bool)
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0:6 isnan ( temp bool)
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0:6 '@finitetmp' ( temp float)
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0:6 Negate conditional ( temp bool)
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0:6 isinf ( temp bool)
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0:6 '@finitetmp' ( temp float)
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0:8 Branch: Return with expression
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0:8 Constant:
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0:8 0.000000
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0:8 0.000000
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0:8 0.000000
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0:8 0.000000
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0:5 Function Definition: main( ( temp void)
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0:5 Function Parameters:
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0:? Sequence
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0:5 move second child to first child ( temp 4-component vector of float)
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0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
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0:5 Function Call: @main( ( temp 4-component vector of float)
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0:? Linker Objects
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0:? 'anon@0' (layout( row_major std140) uniform block{ uniform float f})
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0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
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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 38
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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" 36
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ExecutionMode 4 OriginUpperLeft
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Name 4 "main"
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Name 9 "@main("
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Name 12 "@finitetmp"
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Name 13 "$Global"
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MemberName 13($Global) 0 "f"
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Name 15 ""
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Name 36 "@entryPointOutput"
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MemberDecorate 13($Global) 0 Offset 0
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Decorate 13($Global) Block
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Decorate 15 DescriptorSet 0
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Decorate 36(@entryPointOutput) Location 0
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2: TypeVoid
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3: TypeFunction 2
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6: TypeFloat 32
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7: TypeVector 6(float) 4
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8: TypeFunction 7(fvec4)
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11: TypePointer Function 6(float)
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13($Global): TypeStruct 6(float)
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14: TypePointer Uniform 13($Global)
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15: 14(ptr) Variable Uniform
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16: TypeInt 32 1
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17: 16(int) Constant 0
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18: TypePointer Uniform 6(float)
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21: TypeBool
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31: 6(float) Constant 0
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32: 7(fvec4) ConstantComposite 31 31 31 31
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35: TypePointer Output 7(fvec4)
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36(@entryPointOutput): 35(ptr) Variable Output
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4(main): 2 Function None 3
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5: Label
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37: 7(fvec4) FunctionCall 9(@main()
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Store 36(@entryPointOutput) 37
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Return
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FunctionEnd
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9(@main(): 7(fvec4) Function None 8
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10: Label
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12(@finitetmp): 11(ptr) Variable Function
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19: 18(ptr) AccessChain 15 17
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20: 6(float) Load 19
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Store 12(@finitetmp) 20
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22: 6(float) Load 12(@finitetmp)
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23: 21(bool) IsNan 22
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24: 21(bool) LogicalNot 23
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SelectionMerge 26 None
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BranchConditional 24 25 26
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25: Label
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27: 6(float) Load 12(@finitetmp)
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28: 21(bool) IsInf 27
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29: 21(bool) LogicalNot 28
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Branch 26
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26: Label
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30: 21(bool) Phi 24 10 29 25
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ReturnValue 32
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FunctionEnd
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9
Test/hlsl.isfinite.frag
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9
Test/hlsl.isfinite.frag
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@ -0,0 +1,9 @@
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uniform float f;
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float4 main() : SV_Target0
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{
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isfinite(f);
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return 0;
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}
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@ -136,6 +136,7 @@ INSTANTIATE_TEST_CASE_P(
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{"hlsl.inoutquals.frag", "main"},
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{"hlsl.init.frag", "ShaderFunction"},
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{"hlsl.init2.frag", "main"},
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{"hlsl.isfinite.frag", "main"},
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{"hlsl.intrinsics.barriers.comp", "ComputeShaderFunction"},
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{"hlsl.intrinsics.comp", "ComputeShaderFunction"},
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{"hlsl.intrinsics.evalfns.frag", "main"},
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@ -3867,6 +3867,48 @@ void HlslParseContext::decomposeIntrinsic(const TSourceLoc& loc, TIntermTyped*&
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break;
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}
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case EOpIsFinite:
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{
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// Since OPIsFinite in SPIR-V is only supported with the Kernel capability, we translate
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// it to !isnan && !isinf
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TIntermTyped* arg0 = node->getAsUnaryNode()->getOperand();
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// We'll make a temporary in case the RHS is cmoplex
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TVariable* tempArg = makeInternalVariable("@finitetmp", arg0->getType());
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tempArg->getWritableType().getQualifier().makeTemporary();
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TIntermTyped* tmpArgAssign = intermediate.addAssign(EOpAssign,
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intermediate.addSymbol(*tempArg, loc),
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arg0, loc);
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TIntermAggregate* compoundStatement = intermediate.makeAggregate(tmpArgAssign, loc);
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TIntermTyped* isnan = handleUnaryMath(loc, "isnan", EOpIsNan, intermediate.addSymbol(*tempArg, loc));
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isnan->setType(TType(EbtBool));
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TIntermTyped* notnan = handleUnaryMath(loc, "!", EOpLogicalNot, isnan);
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notnan->setType(TType(EbtBool));
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TIntermTyped* isinf = handleUnaryMath(loc, "isinf", EOpIsInf, intermediate.addSymbol(*tempArg, loc));
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isinf->setType(TType(EbtBool));
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TIntermTyped* notinf = handleUnaryMath(loc, "!", EOpLogicalNot, isinf);
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notinf->setType(TType(EbtBool));
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TIntermTyped* andNode = handleBinaryMath(loc, "and", EOpLogicalAnd, notnan, notinf);
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andNode->setType(TType(EbtBool));
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compoundStatement = intermediate.growAggregate(compoundStatement, andNode);
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compoundStatement->setOperator(EOpSequence);
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compoundStatement->setLoc(loc);
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compoundStatement->setType(TType(EbtVoid));
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node = compoundStatement;
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break;
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}
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default:
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break; // most pass through unchanged
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}
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