diff options
| -rw-r--r-- | source/slang/hlsl.meta.slang | 4 | ||||
| -rw-r--r-- | tests/cross-compile/sign-wgsl.slang | 31 |
2 files changed, 33 insertions, 2 deletions
diff --git a/source/slang/hlsl.meta.slang b/source/slang/hlsl.meta.slang index 1dcb0b7d4..1443843a9 100644 --- a/source/slang/hlsl.meta.slang +++ b/source/slang/hlsl.meta.slang @@ -13107,7 +13107,7 @@ int sign(T x) }; else return __int_cast<int>(spirv_asm {OpExtInst $$T result glsl450 SSign $x}); - case wgsl: __intrinsic_asm "sign"; + case wgsl: __intrinsic_asm "i32(sign($0))"; } } @@ -13131,7 +13131,7 @@ vector<int, N> sign(vector<T, N> x) }; else return __int_cast<int>(spirv_asm {OpExtInst $$vector<T,N> result glsl450 SSign $x}); - case wgsl: __intrinsic_asm "sign"; + case wgsl: __intrinsic_asm "vec$N0<i32>(sign($0))"; default: VECTOR_MAP_UNARY(int, N, sign, x); } diff --git a/tests/cross-compile/sign-wgsl.slang b/tests/cross-compile/sign-wgsl.slang new file mode 100644 index 000000000..60e0fceee --- /dev/null +++ b/tests/cross-compile/sign-wgsl.slang @@ -0,0 +1,31 @@ +// sign-wgsl.slang + +//TEST:SIMPLE(filecheck=WGSL): -target wgsl -entry main -stage compute + +// Test that sign function returns correct type for WGSL +// WGSL's sign returns float but Slang's sign should return int + +struct OutputBuffer +{ + int scalar_result; + int2 vector_result; +}; + +[[vk::binding(0, 0)]] +RWStructuredBuffer<OutputBuffer> outputBuffer; + +[numthreads(1, 1, 1)] +void main() +{ + // Test scalar sign function + int scalar_result = sign(0.5); + + // Test vector sign function + int2 vector_result = sign(float2(1.5, -0.5)); + + outputBuffer[0].scalar_result = scalar_result; + outputBuffer[0].vector_result = vector_result; + + // WGSL-DAG: i32(sign( + // WGSL-DAG: vec2<i32>(sign((vec2<f32> +}
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