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Description
We have existing tests for select
over scalars, but need to extend them to support structs. Note that WaveReadLaneAt
has examples of this that could be used for guidance.
In Test\Feature\HLSLLib create
- Tests for Structs
A .test file should contain
- a source portion; If multiple .test files can use the same source; it can go in its own file and be referenced in the run portion of each .test file instead.
@@ -0,0 +1,54 @@
#--- source.hlsl
StructuredBuffer<float4> In : register(t0);
RWStructuredBuffer<float> Out : register(u1);
[numthreads(1,1,1)]
void main() {
// A single test can test for all scalar/vector length as shown here.
Out[0] = length(In[0]); // Test float4
Out[1] = length(In[1].x); // Test float
Out[2] = length(In[1].yzw); // Test float3
Out[3] = length(In[1].yz); // Test float2
}
- a yaml portion; If multiple .test files can use the same YAML, it can go in its own file and be referenced in the run portion of each .test file instead.
//--- pipeline.yaml
---
Shaders:
- Stage: Compute
Entry: main
DispatchSize: [1, 1, 1]
Buffers:
- Name: In
Format: Float32
Stride: 16
Data: [ 4, 4, 4, 4, 3.14159, 0, 5, 12 ]
- Name: Out
Format: Float32
Stride: 4
ZeroInitSize: 12
- Name: ExpectedOut # The result we expect
Format: Float32
Stride: 4
Data: [ 8, 3.14159, 13, 5 ]
Results: # A test might have more than 1 result.
- Result: Test1
Rule: BufferFuzzy # there is also a BufferExact rule
ULPT: 1
Actual: Out
Expected: ExpectedOut
DescriptorSets:
- Resources:
- Name: In
Kind: StructuredBuffer
DirectXBinding:
Register: 0
Space: 0
VulkanBinding:
Binding: 0
- Name: Out
Kind: RWStructuredBuffer
DirectXBinding:
Register: 1
Space: 0
VulkanBinding:
Binding: 1
...
#--- end
- A run portion; which will be unique to each .test file.
# RUN: split-file %s %t
# RUN: %dxc_target -T cs_6_5 -Fo %t.o %t/source.hlsl
# RUN: %offloader %t/pipeline.yaml %t.o
Tests for 16 bit floating point should have a # REQUIRES: Half
. Don't forget -enable-16bit-types
Tests for 16 bit integer should have a # REQUIRES: Int16
. Don't forget -enable-16bit-types
Tests for 64 bit floating point should have a # REQUIRES: Double
.
Tests for 64 bit integer should have a # REQUIRES: Int64
.
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