yum-mirror/slang

Making it easier to work with shaders

git clone https://git.yummers.dev/yum-mirror/slang

aidanfnvAdd arguments for controlling floating point denormal mode (#7461)d50c3f34a

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1//TEST:SIMPLE(filecheck=CHECK_ANY):-target spirv-assembly -entry computeMain -stage compute
2//TEST:SIMPLE(filecheck=CHECK_ANY):-target spirv-assembly -entry computeMain -stage compute -denorm-mode-fp16 any
3//TEST:SIMPLE(filecheck=CHECK_PRESERVE):-target spirv-assembly -entry computeMain -stage compute -denorm-mode-fp16 preserve
4//TEST:SIMPLE(filecheck=CHECK_FTZ):-target spirv-assembly -entry computeMain -stage compute -denorm-mode-fp16 ftz
5
6//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2
7//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2 -denorm-mode-fp16 any
8//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2 -denorm-mode-fp16 preserve
9//TEST:SIMPLE(filecheck=CHECK_DXIL):-target dxil-assembly -entry computeMain -stage compute -profile cs_6_2 -denorm-mode-fp16 ftz
10
11//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=PRESERVE):-vk -compute -Xslang -denorm-mode-fp16 -Xslang preserve
12// Capability shaderDenormFlushToZeroFloat16 is VK_FALSE on the Vulkan device used for CI testing, resulting in
13// runtime error VUID-RuntimeSpirv-shaderDenormFlushToZeroFloat16-06299 during CI testing
14//DISABLE_TEST(compute):COMPARE_COMPUTE(filecheck-buffer=FTZ):-vk -compute -Xslang -denorm-mode-fp16 -Xslang ftz
15
16// CHECK_ANY-NOT: DenormPreserve
17// CHECK_ANY-NOT: DenormFlushToZero
18
19// CHECK_PRESERVE: OpExecutionMode %computeMain DenormPreserve 16
20// CHECK_PRESERVE-NOT: OpExecutionMode %computeMain DenormPreserve 32
21// CHECK_PRESERVE-NOT: OpExecutionMode %computeMain DenormPreserve 64
22// CHECK_PRESERVE-NOT: DenormFlushToZero
23
24// CHECK_FTZ: OpExecutionMode %computeMain DenormFlushToZero 16
25// CHECK_FTZ-NOT: OpExecutionMode %computeMain DenormFlushToZero 32
26// CHECK_FTZ-NOT: OpExecutionMode %computeMain DenormFlushToZero 64
27// CHECK_FTZ-NOT: DenormPreserve
28
29// CHECK_DXIL-NOT: fp32-denorm-mode
30// CHECK_DXIL-NOT: preserve
31// CHECK_DXIL-NOT: ftz
32
33// In preserve mode, denormalized numbers should be preserved
34// PRESERVE: 66
35
36// In flush-to-zero mode, denormalized numbers should be flushed to zero
37// FTZ: 0
38
39// Smallest normal fp16
40//TEST_INPUT: set inputBuffer = ubuffer(data=[0x0400], stride=2)
41RWStructuredBuffer<half> inputBuffer;
42
43//TEST_INPUT:ubuffer(data=[0], stride=2):out,name=outputBuffer
44RWStructuredBuffer<half> outputBuffer;
45
46[shader("compute")]
47[numthreads(1, 1, 1)]
48void computeMain()
49{
50    half smallestNormal = inputBuffer[0];
51    half denormal = smallestNormal / 10;
52    
53    outputBuffer[0] = denormal;
54}