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HLSL: fix crash on empty sequence node passed to intrinsic expansions

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This commit is contained in:
steve-lunarg 2017-03-31 12:47:34 -06:00
parent 9ce76553b8
commit db2e3b4169
4 changed files with 141 additions and 1 deletions
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122
Test/baseResults/hlsl.clip.frag.out Normal file
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@ -0,0 +1,122 @@
hlsl.clip.frag
Shader version: 450
gl_FragCoord origin is upper left
0:? Sequence
0:3 Function Definition: GetEntitySelectClip( ( temp float)
0:3 Function Parameters:
0:? Sequence
0:4 Branch: Return with expression
0:4 Constant:
0:4 1.000000
0:8 Function Definition: @main( ( temp 4-component vector of float)
0:8 Function Parameters:
0:? Sequence
0:9 Test condition and select ( temp void)
0:9 Condition
0:9 Compare Less Than ( temp bool)
0:9 Function Call: GetEntitySelectClip( ( temp float)
0:9 Constant:
0:9 0.000000
0:9 true case
0:9 Branch: Kill
0:11 Branch: Return with expression
0:11 Constant:
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:8 Function Definition: main( ( temp void)
0:8 Function Parameters:
0:? Sequence
0:8 move second child to first child ( temp 4-component vector of float)
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
0:8 Function Call: @main( ( temp 4-component vector of float)
0:? Linker Objects
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
Linked fragment stage:
Shader version: 450
gl_FragCoord origin is upper left
0:? Sequence
0:3 Function Definition: GetEntitySelectClip( ( temp float)
0:3 Function Parameters:
0:? Sequence
0:4 Branch: Return with expression
0:4 Constant:
0:4 1.000000
0:8 Function Definition: @main( ( temp 4-component vector of float)
0:8 Function Parameters:
0:? Sequence
0:9 Test condition and select ( temp void)
0:9 Condition
0:9 Compare Less Than ( temp bool)
0:9 Function Call: GetEntitySelectClip( ( temp float)
0:9 Constant:
0:9 0.000000
0:9 true case
0:9 Branch: Kill
0:11 Branch: Return with expression
0:11 Constant:
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:11 0.000000
0:8 Function Definition: main( ( temp void)
0:8 Function Parameters:
0:? Sequence
0:8 move second child to first child ( temp 4-component vector of float)
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
0:8 Function Call: @main( ( temp 4-component vector of float)
0:? Linker Objects
0:? '@entryPointOutput' (layout( location=0) out 4-component vector of float)
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 30
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 28
ExecutionMode 4 OriginUpperLeft
Name 4 "main"
Name 8 "GetEntitySelectClip("
Name 12 "@main("
Name 28 "@entryPointOutput"
Decorate 28(@entryPointOutput) Location 0
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeFunction 6(float)
10: TypeVector 6(float) 4
11: TypeFunction 10(fvec4)
14: 6(float) Constant 1065353216
18: 6(float) Constant 0
19: TypeBool
24: 10(fvec4) ConstantComposite 18 18 18 18
27: TypePointer Output 10(fvec4)
28(@entryPointOutput): 27(ptr) Variable Output
4(main): 2 Function None 3
5: Label
29: 10(fvec4) FunctionCall 12(@main()
Store 28(@entryPointOutput) 29
Return
FunctionEnd
8(GetEntitySelectClip(): 6(float) Function None 7
9: Label
ReturnValue 14
FunctionEnd
12(@main(): 10(fvec4) Function None 11
13: Label
17: 6(float) FunctionCall 8(GetEntitySelectClip()
20: 19(bool) FOrdLessThan 17 18
SelectionMerge 22 None
BranchConditional 20 21 22
21: Label
Kill
22: Label
ReturnValue 24
FunctionEnd

12
Test/hlsl.clip.frag Normal file
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@ -0,0 +1,12 @@
float GetEntitySelectClip()
{
return 1.0f;
}
float4 main() : SV_TARGET
{
clip(GetEntitySelectClip());
return 0;
}

1
gtests/Hlsl.FromFile.cpp
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@ -93,6 +93,7 @@ INSTANTIATE_TEST_CASE_P(
{"hlsl.calculatelod.dx10.frag", "main"},
{"hlsl.calculatelodunclamped.dx10.frag", "main"},
{"hlsl.cast.frag", "PixelShaderFunction"},
{"hlsl.clip.frag", "main"},
{"hlsl.comparison.vec.frag", "main"},
{"hlsl.conditional.frag", "PixelShaderFunction"},
{"hlsl.constructexpr.frag", "main"},

7
hlsl/hlslParseHelper.cpp
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@ -2272,6 +2272,9 @@ void HlslParseContext::decomposeStructBufferMethods(const TSourceLoc& loc, TInte
if (argAggregate == nullptr)
return;
if (argAggregate->getSequence().empty())
return;
// Buffer is the object upon which method is called, so always arg 0
TIntermTyped* bufferObj = argAggregate->getSequence()[0]->getAsTyped();
@ -3747,7 +3750,9 @@ TIntermTyped* HlslParseContext::handleFunctionCall(const TSourceLoc& loc, TFunct
// the symbol table for an arbitrary type. This is a temporary hack until that ability exists.
// It will have false positives, since it doesn't check arg counts or types.
if (arguments && arguments->getAsAggregate()) {
if (isStructBufferType(arguments->getAsAggregate()->getSequence()[0]->getAsTyped()->getType())) {
const TIntermSequence& sequence = arguments->getAsAggregate()->getSequence();
if (!sequence.empty() && isStructBufferType(sequence[0]->getAsTyped()->getType())) {
static const int methodPrefixSize = sizeof(BUILTIN_PREFIX)-1;
if (function->getName().length() > methodPrefixSize &&