b2ca23aed8
This change implements: #70072 - `hlsl_intrinsics.h` - add the `exp` api - `DXIL.td` - add the llvm intrinsic to DXIL opcode lowering mapping. - This change reuses llvm's existing intrinsic `__builtin_elementwise_exp` \ `int_exp` & `__builtin_elementwise_exp2` \ `int_exp2` - This PR is part 1 of 2. - Part 2 requires an intrinsic to instructions lowering. Part2 will expand `int_exp` to ``` A = Builder.CreateFMul(log2eConst, val); int_exp2(A) ``` just like we do in [TranslateExp](https://github.com/microsoft/DirectXShaderCompiler/blob/main/lib/HLSL/HLOperationLower.cpp#L2220C1-L2236C2)
54 lines
2.4 KiB
HLSL
54 lines
2.4 KiB
HLSL
// RUN: %clang_cc1 -finclude-default-header -x hlsl -triple \
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// RUN: dxil-pc-shadermodel6.3-library %s -fnative-half-type \
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// RUN: -emit-llvm -disable-llvm-passes -o - | FileCheck %s \
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// RUN: --check-prefixes=CHECK,NATIVE_HALF
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// RUN: %clang_cc1 -finclude-default-header -x hlsl -triple \
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// RUN: dxil-pc-shadermodel6.3-library %s -emit-llvm -disable-llvm-passes \
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// RUN: -o - | FileCheck %s --check-prefixes=CHECK,NO_HALF
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// NATIVE_HALF: define noundef half @
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// NATIVE_HALF: %elt.exp = call half @llvm.exp.f16(
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// NATIVE_HALF: ret half %elt.exp
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// NO_HALF: define noundef float @"?test_exp_half@@YA$halff@$halff@@Z"(
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// NO_HALF: %elt.exp = call float @llvm.exp.f32(
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// NO_HALF: ret float %elt.exp
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half test_exp_half(half p0) { return exp(p0); }
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// NATIVE_HALF: define noundef <2 x half> @
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// NATIVE_HALF: %elt.exp = call <2 x half> @llvm.exp.v2f16
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// NATIVE_HALF: ret <2 x half> %elt.exp
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// NO_HALF: define noundef <2 x float> @
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// NO_HALF: %elt.exp = call <2 x float> @llvm.exp.v2f32(
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// NO_HALF: ret <2 x float> %elt.exp
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half2 test_exp_half2(half2 p0) { return exp(p0); }
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// NATIVE_HALF: define noundef <3 x half> @
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// NATIVE_HALF: %elt.exp = call <3 x half> @llvm.exp.v3f16
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// NATIVE_HALF: ret <3 x half> %elt.exp
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// NO_HALF: define noundef <3 x float> @
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// NO_HALF: %elt.exp = call <3 x float> @llvm.exp.v3f32(
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// NO_HALF: ret <3 x float> %elt.exp
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half3 test_exp_half3(half3 p0) { return exp(p0); }
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// NATIVE_HALF: define noundef <4 x half> @
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// NATIVE_HALF: %elt.exp = call <4 x half> @llvm.exp.v4f16
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// NATIVE_HALF: ret <4 x half> %elt.exp
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// NO_HALF: define noundef <4 x float> @
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// NO_HALF: %elt.exp = call <4 x float> @llvm.exp.v4f32(
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// NO_HALF: ret <4 x float> %elt.exp
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half4 test_exp_half4(half4 p0) { return exp(p0); }
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// CHECK: define noundef float @
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// CHECK: %elt.exp = call float @llvm.exp.f32(
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// CHECK: ret float %elt.exp
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float test_exp_float(float p0) { return exp(p0); }
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// CHECK: define noundef <2 x float> @
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// CHECK: %elt.exp = call <2 x float> @llvm.exp.v2f32
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// CHECK: ret <2 x float> %elt.exp
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float2 test_exp_float2(float2 p0) { return exp(p0); }
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// CHECK: define noundef <3 x float> @
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// CHECK: %elt.exp = call <3 x float> @llvm.exp.v3f32
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// CHECK: ret <3 x float> %elt.exp
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float3 test_exp_float3(float3 p0) { return exp(p0); }
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// CHECK: define noundef <4 x float> @
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// CHECK: %elt.exp = call <4 x float> @llvm.exp.v4f32
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// CHECK: ret <4 x float> %elt.exp
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float4 test_exp_float4(float4 p0) { return exp(p0); }
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