8386a388bd
closes #70071 - `CGBuiltin.cpp` - Add the unsigned\generic clamp intrinsic emitter. - `IntrinsicsDirectX.td` - add the `dx.clamp` & `dx.uclamp` intrinsics - `DXILIntrinsicExpansion.cpp` - add the `clamp` instruction expansion while maintaining vector form. - `SemaChecking.cpp` - Add `clamp` builtin Sema Checks. - `Builtins.td` - add a `clamp` builtin - `hlsl_intrinsics.h` - add the `clamp` api Why `clamp` as instruction expansion for DXIL? 1. SPIR-V has a GLSL `clamp` extension via: - [FClamp](https://registry.khronos.org/SPIR-V/specs/1.0/GLSL.std.450.html#FClamp) - [UClamp](https://registry.khronos.org/SPIR-V/specs/1.0/GLSL.std.450.html#UClamp) - [SClamp](https://registry.khronos.org/SPIR-V/specs/1.0/GLSL.std.450.html#SClamp) 2. Further Clamp lowers to `min(max( x, min_range ), max_range)` which we have float, signed, & unsigned dixilOps.
92 lines
3.8 KiB
HLSL
92 lines
3.8 KiB
HLSL
// RUN: %clang_cc1 -finclude-default-header -triple dxil-pc-shadermodel6.6-library %s -fnative-half-type -emit-llvm -disable-llvm-passes -verify -verify-ignore-unexpected
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float2 test_no_second_arg(float2 p0) {
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return __builtin_hlsl_elementwise_clamp(p0);
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// expected-error@-1 {{too few arguments to function call, expected 3, have 1}}
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}
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float2 test_no_third_arg(float2 p0) {
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return __builtin_hlsl_elementwise_clamp(p0, p0);
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// expected-error@-1 {{too few arguments to function call, expected 3, have 2}}
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}
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float2 test_too_many_arg(float2 p0) {
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return __builtin_hlsl_elementwise_clamp(p0, p0, p0, p0);
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// expected-error@-1 {{too many arguments to function call, expected 3, have 4}}
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}
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float2 test_clamp_no_second_arg(float2 p0) {
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return clamp(p0);
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// expected-error@-1 {{no matching function for call to 'clamp'}}
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}
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float2 test_clamp_vector_size_mismatch(float3 p0, float2 p1) {
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return clamp(p0, p0, p1);
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// expected-warning@-1 {{implicit conversion truncates vector: 'float3' (aka 'vector<float, 3>') to 'float __attribute__((ext_vector_type(2)))' (vector of 2 'float' values)}}
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}
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float2 test_clamp_builtin_vector_size_mismatch(float3 p0, float2 p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must have the same type}}
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}
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float test_clamp_scalar_mismatch(float p0, half p1) {
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return clamp(p1, p0, p1);
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// expected-error@-1 {{call to 'clamp' is ambiguous}}
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}
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float2 test_clamp_element_type_mismatch(half2 p0, float2 p1) {
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return clamp(p1, p0, p1);
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// expected-error@-1 {{call to 'clamp' is ambiguous}}
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}
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float2 test_builtin_clamp_float2_splat(float p0, float2 p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must be vectors}}
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}
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float3 test_builtin_clamp_float3_splat(float p0, float3 p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must be vectors}}
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}
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float4 test_builtin_clamp_float4_splat(float p0, float4 p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must be vectors}}
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}
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float2 test_clamp_float2_int_splat(float2 p0, int p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must be vectors}}
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}
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float3 test_clamp_float3_int_splat(float3 p0, int p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must be vectors}}
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}
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float2 test_builtin_clamp_int_vect_to_float_vec_promotion(int2 p0, float p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p1, p1);
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// expected-error@-1 {{all arguments to '__builtin_hlsl_elementwise_clamp' must be vectors}}
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}
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float test_builtin_clamp_bool_type_promotion(bool p0) {
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return __builtin_hlsl_elementwise_clamp(p0, p0, p0);
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// expected-error@-1 {{1st argument must be a vector, integer or floating point type (was 'bool')}}
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}
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float builtin_bool_to_float_type_promotion(float p0, bool p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p0, p1);
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// expected-error@-1 {{3rd argument must be a floating point type (was 'bool')}}
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}
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float builtin_bool_to_float_type_promotion2(bool p0, float p1) {
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return __builtin_hlsl_elementwise_clamp(p1, p0, p1);
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// expected-error@-1 {{2nd argument must be a floating point type (was 'bool')}}
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}
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float builtin_clamp_int_to_float_promotion(float p0, int p1) {
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return __builtin_hlsl_elementwise_clamp(p0, p0, p1);
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// expected-error@-1 {{3rd argument must be a floating point type (was 'int')}}
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}
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