diff options
| author | Copilot <198982749+Copilot@users.noreply.github.com> | 2025-07-28 22:35:14 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-29 05:35:14 +0000 |
| commit | e8797496bf7caeb08b5334d13d0d5aa039106210 (patch) | |
| tree | fdfd68a6d9122c43523c37b5b20893d11aad1c06 /tests | |
| parent | a2d93ae0122aff62866e9266e5e51d4615a00783 (diff) | |
Fix CUDA backend missing U32_firstbitlow implementation (#7921)
* Initial plan
* Add U32_firstbitlow implementation for CUDA and CPP backends
Co-authored-by: bmillsNV <163073245+bmillsNV@users.noreply.github.com>
* Add I32_firstbitlow and comprehensive testing for signed/unsigned firstbitlow
Co-authored-by: bmillsNV <163073245+bmillsNV@users.noreply.github.com>
* Convert firstbitlow test to use inline filecheck syntax
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
* Add U32_firstbithigh and I32_firstbithigh implementations for CUDA and CPP backends
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Update prelude/slang-cpp-scalar-intrinsics.h
* Update prelude/slang-cpp-scalar-intrinsics.h
* Update prelude/slang-cpp-scalar-intrinsics.h
* Refactor Metal bit intrinsics to handle zero case correctly
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
* Update slang-cuda-prelude.h
remove fake links
* Update hlsl.meta.slang
* if -1, return -1 due to implicit hlsl rule
* -1 or 0 is ~0u as per hlsl implictly
* 0 or -1 as per hlsl
* fix the math to map to hlsl
* fix compile error
* forgot `31 - clz`
* format code (#7943)
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
* Update source/slang/hlsl.meta.slang
* Update source/slang/hlsl.meta.slang
* Update source/slang/hlsl.meta.slang
* Update source/slang/hlsl.meta.slang
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: bmillsNV <163073245+bmillsNV@users.noreply.github.com>
Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
Co-authored-by: ArielG-NV <aglasroth@nvidia.com>
Co-authored-by: slangbot <ellieh+slangbot@nvidia.com>
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/hlsl-intrinsic/firstbithigh.slang | 37 | ||||
| -rw-r--r-- | tests/hlsl-intrinsic/firstbitlow.slang | 39 |
2 files changed, 76 insertions, 0 deletions
diff --git a/tests/hlsl-intrinsic/firstbithigh.slang b/tests/hlsl-intrinsic/firstbithigh.slang new file mode 100644 index 000000000..f5b0bc038 --- /dev/null +++ b/tests/hlsl-intrinsic/firstbithigh.slang @@ -0,0 +1,37 @@ +//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-cpu -compute -shaderobj +//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-slang -compute -shaderobj +//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-slang -compute -dx12 -shaderobj +//TEST(compute, vulkan):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -compute -shaderobj +//TEST(compute, vulkan):COMPARE_COMPUTE(filecheck-buffer=CHECK):-cuda -compute -shaderobj + +//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0 0 0], stride=4):out,name outputBuffer +RWStructuredBuffer<uint> outputBuffer; + +[numthreads(1, 1, 1)] +void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID) +{ + bool result = true; + result = result && firstbithigh(0) == -1; + result = result && firstbithigh(1) == 0; + result = result && firstbithigh(2) == 1; + result = result && firstbithigh(3) == 1; + result = result && firstbithigh(4) == 2; + result = result && firstbithigh(5) == 2; + result = result && firstbithigh(6) == 2; + result = result && firstbithigh(7) == 2; + result = result && firstbithigh(8) == 3; + + result = result && firstbithigh(-1) == -1; + result = result && firstbithigh(-2) == 0; + result = result && firstbithigh(-3) == 1; + result = result && firstbithigh(-4) == 1; + result = result && firstbithigh(-5) == 2; + result = result && firstbithigh(-6) == 2; + result = result && firstbithigh(-7) == 2; + result = result && firstbithigh(-8) == 2; + result = result && firstbithigh(-9) == 3; + + outputBuffer[0] = (result == true) ? 1 : 0; +} + +// CHECK: 1 diff --git a/tests/hlsl-intrinsic/firstbitlow.slang b/tests/hlsl-intrinsic/firstbitlow.slang new file mode 100644 index 000000000..418b8aa6f --- /dev/null +++ b/tests/hlsl-intrinsic/firstbitlow.slang @@ -0,0 +1,39 @@ +//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-cpu -compute -shaderobj +//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-slang -compute -shaderobj +//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-slang -compute -dx12 -shaderobj +//TEST(compute, vulkan):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -compute -shaderobj +//TEST(compute, vulkan):COMPARE_COMPUTE(filecheck-buffer=CHECK):-cuda -compute -shaderobj + +//TEST_INPUT:ubuffer(data=[0 0 0 0 0 0 0 0 0 0], stride=4):out,name outputBuffer +RWStructuredBuffer<uint> outputBuffer; + +[numthreads(10, 1, 1)] +void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID) +{ + uint idx = dispatchThreadID.x; + + if (idx < 5) { + // Test unsigned values + uint testValues[5] = {0, 1, 2, 4, 8}; + uint value = testValues[idx]; + uint result = firstbitlow(value); + outputBuffer[idx] = result; + } else { + // Test signed values + int testValues[5] = {-1, -2, -4, -8, 0}; // 0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFC, 0xFFFFFFF8, 0 + int value = testValues[idx - 5]; + uint result = firstbitlow(value); + outputBuffer[idx] = result; + } +} + +// CHECK: FFFFFFFF +// CHECK: 0 +// CHECK: 1 +// CHECK: 2 +// CHECK: 3 +// CHECK: 0 +// CHECK: 1 +// CHECK: 2 +// CHECK: 3 +// CHECK: FFFFFFFF
\ No newline at end of file |