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add test for fmod #301

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77 changes: 77 additions & 0 deletions test/Feature/HLSLLib/fmod.16.test
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Original file line number Diff line number Diff line change
@@ -0,0 +1,77 @@
#--- source.hlsl
StructuredBuffer<half4> In0 : register(t0);
StructuredBuffer<half4> In1 : register(t1);

RWStructuredBuffer<half4> Out0 : register(u2);


[numthreads(1,1,1)]
void main() {

Out0[0] = fmod(In0[0], In1[0]);
Out0[1] = half4(fmod(In0[1].xyz, In1[1].xyz), fmod(In0[1].w, In1[1].w));
Out0[2] = half4(fmod(In0[2].xy, In1[2].xy), fmod(In0[2].zw, In1[2].zw));
Out0[3] = fmod(half4(10.5, -99.5, 5, 0.25), half4(1, -3, 0.25, 5));
}
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nit:

Suggested change
Out0[0] = fmod(In0[0], In1[0]);
Out0[1] = half4(fmod(In0[1].xyz, In1[1].xyz), fmod(In0[1].w, In1[1].w));
Out0[2] = half4(fmod(In0[2].xy, In1[2].xy), fmod(In0[2].zw, In1[2].zw));
Out0[3] = fmod(half4(10.5, -99.5, 5, 0.25), half4(1, -3, 0.25, 5));
}
Out0[0] = fmod(In0[0], In1[0]);
Out0[1] = half4(fmod(In0[1].xyz, In1[1].xyz), fmod(In0[1].w, In1[1].w));
Out0[2] = half4(fmod(In0[2].xy, In1[2].xy), fmod(In0[2].zw, In1[2].zw));
Out0[3] = fmod(half4(10.5, -99.5, 5, 0.25), half4(1, -3, 0.25, 5));
}

//--- pipeline.yaml

---
Shaders:
- Stage: Compute
Entry: main
DispatchSize: [1, 1, 1]
Buffers:
- Name: In0
Format: Float16
Stride: 8
Data: [0x4940, 0xd638, 0x4500, 0x3400, 0, 0x6056, 0x4940, 0xd638, 0x4500, 0x3400, 0, 0x6056]
# 10.5, -99.5, 5, 0.25, 0, 555, 10.5, -99.5, 5, 0.25, 0, 555
- Name: In1
Format: Float16
Stride: 8
Data: [0x3c00, 0xc200, 0x3400, 0x4500, 0x4900, 0x4100, 0x3c00, 0xc200, 0x3400, 0x4500, 0x4900, 0x4100]
# 1.1, -3, 0.25, 5, 10, 2.5, 1, -3, 0.25, 5, 10, 2.5
- Name: Out0
Format: Float16
Stride: 8
ZeroInitSize: 32
- Name: ExpectedOut0
Format: Float16
Stride: 8
Data: [ 0x3800, 0xB780, 0x0, 0x3400, 0x0, 0x0, 0x3800, 0xB780, 0x0, 0x3400, 0x0, 0x0, 0x3800, 0xB800, 0x0, 0x3400 ]
# 0.5, -0.46875, 0, 0.25, 0, 0, 0.5 -0.46875, 0, 0.25, 0, 0, 0.5, -0.46875, 0, 0.25
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I expected 10.5 mod 1.1 to be 0.6, I'm surprised 0.5 is the answer? It also doesn't seem like epsilon is high enough to tolerate this error, I'm surprised this is passing.
Also shocked at how far off -99.5 mod -3 is from .5, should we add -Gis to the compilation options perhaps to improve precision?

Results:
- Result: Test0
Rule: BufferFloatEpsilon
Epsilon: 0.04
Actual: Out0
Expected: ExpectedOut0
DescriptorSets:
- Resources:
- Name: In0
Kind: StructuredBuffer
DirectXBinding:
Register: 0
Space: 0
VulkanBinding:
Binding: 0
- Name: In1
Kind: StructuredBuffer
DirectXBinding:
Register: 1
Space: 0
VulkanBinding:
Binding: 1
- Name: Out0
Kind: RWStructuredBuffer
DirectXBinding:
Register: 2
Space: 0
VulkanBinding:
Binding: 2
#--- end

# REQUIRES: Half
# RUN: split-file %s %t
# RUN: %dxc_target -HV 202x -enable-16bit-types -T cs_6_5 -Fo %t.o %t/source.hlsl
# RUN: %offloader %t/pipeline.yaml %t.o
74 changes: 74 additions & 0 deletions test/Feature/HLSLLib/fmod.32.test
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Original file line number Diff line number Diff line change
@@ -0,0 +1,74 @@
#--- source.hlsl
StructuredBuffer<float4> In0 : register(t0);
StructuredBuffer<float4> In1 : register(t1);

RWStructuredBuffer<float4> Out0 : register(u2);


[numthreads(1,1,1)]
void main() {

Out0[0] = fmod(In0[0], In1[0]);
Out0[1] = float4(fmod(In0[1].xyz, In1[1].xyz), fmod(In0[1].w, In1[1].w));
Out0[2] = float4(fmod(In0[2].xy, In1[2].xy), fmod(In0[2].zw, In1[2].zw));
Out0[3] = fmod(float4(10.10, -99.99, 5, 0.25), float4(1.1, -3, 0.25, 5));
}
//--- pipeline.yaml

---
Shaders:
- Stage: Compute
Entry: main
DispatchSize: [1, 1, 1]
Buffers:
- Name: In0
Format: Float32
Stride: 16
Data: [10.10, -99.99, 5, 0.25, 0, 6555.555, 10.10, -99.99, 5, 0.25, 0, 6555.555]
- Name: In1
Format: Float32
Stride: 16
Data: [1.1, -3, 0.25, 5, 10, 2.22, 1.1, -3, 0.25, 5, 10, 2.22]
- Name: Out0
Format: Float32
Stride: 16
ZeroInitSize: 64
- Name: ExpectedOut0
Format: Float32
Stride: 16
Data: [ 0.2, -0.990005, 0, 0.25, 0, 2.1154, 0.2, -0.990005, 0, 0.25, 0, 2.1154, 0.2, -0.98999, 0, 0.25 ]
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You should be able to remove the ...00005, since epsilon is sufficiently large

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Also -0.98999 is strange, expected -.99

Results:
- Result: Test0
Rule: BufferFloatEpsilon
Epsilon: 0.0008
Actual: Out0
Expected: ExpectedOut0
DescriptorSets:
- Resources:
- Name: In0
Kind: StructuredBuffer
DirectXBinding:
Register: 0
Space: 0
VulkanBinding:
Binding: 0
- Name: In1
Kind: StructuredBuffer
DirectXBinding:
Register: 1
Space: 0
VulkanBinding:
Binding: 1
- Name: Out0
Kind: RWStructuredBuffer
DirectXBinding:
Register: 2
Space: 0
VulkanBinding:
Binding: 2
#--- end


# 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
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