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[clang][hlsl] Add atan2 intrinsic part 3
Issue: llvm#70096 Changes: - `llvm/docs/GlobalISel/GenericOpcode.rst` - Document the G_FATAN2 opcode - `llvm/include/llvm/Support/TargetOpcodes.def` - Create a G_FATAN2 Opcode handler - `llvm/include/llvm/Target/GenericOpcodes.td` - Define the G_FATAN2 Opcode - `llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp` Map the atan2 intrinsic to G_FATAN2 Opcode - `llvm/lib/Target/SPIRV/SPIRVInstructionSelector.cpp` - Map the G_FATAN2 opcode to the GLSL 4.5 and openCL atan2 instructions. - `llvm/lib/Target/SPIRV/SPIRVLegalizerInfo.cpp` - Define G_FATAN2 as a legal spirv target opcode.
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; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv-unknown-unknown %s -o - | FileCheck %s | ||
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-unknown %s -o - -filetype=obj | spirv-val %} | ||
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; CHECK-DAG: %[[#op_ext_glsl:]] = OpExtInstImport "GLSL.std.450" | ||
; CHECK-DAG: %[[#float_32:]] = OpTypeFloat 32 | ||
; CHECK-DAG: %[[#float_16:]] = OpTypeFloat 16 | ||
; CHECK-DAG: %[[#vec4_float_32:]] = OpTypeVector %[[#float_32]] 4 | ||
; CHECK-DAG: %[[#vec4_float_16:]] = OpTypeVector %[[#float_16]] 4 | ||
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define noundef float @atan2_float(float noundef %a, float noundef %b) { | ||
entry: | ||
; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#arg1:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#]] = OpExtInst %[[#float_32]] %[[#op_ext_glsl]] Atan2 %[[#arg0]] %[[#arg1]] | ||
%elt.atan2 = call float @llvm.atan2.f32(float %a, float %b) | ||
ret float %elt.atan2 | ||
} | ||
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define noundef half @atan2_half(half noundef %a, half noundef %b) { | ||
entry: | ||
; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#arg1:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#]] = OpExtInst %[[#float_16]] %[[#op_ext_glsl]] Atan2 %[[#arg0]] %[[#arg1]] | ||
%elt.atan2 = call half @llvm.atan2.f16(half %a, half %b) | ||
ret half %elt.atan2 | ||
} | ||
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define noundef <4 x float> @atan2_float4(<4 x float> noundef %a, <4 x float> noundef %b) { | ||
entry: | ||
; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#arg1:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#]] = OpExtInst %[[#vec4_float_32]] %[[#op_ext_glsl]] Atan2 %[[#arg0]] %[[#arg1]] | ||
%elt.atan2 = call <4 x float> @llvm.atan2.v4f32(<4 x float> %a, <4 x float> %b) | ||
ret <4 x float> %elt.atan2 | ||
} | ||
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define noundef <4 x half> @atan2_half4(<4 x half> noundef %a, <4 x half> noundef %b) { | ||
entry: | ||
; CHECK: %[[#arg0:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#arg1:]] = OpFunctionParameter %[[#]] | ||
; CHECK: %[[#]] = OpExtInst %[[#vec4_float_16]] %[[#op_ext_glsl]] Atan2 %[[#arg0]] %[[#arg1]] | ||
%elt.atan2 = call <4 x half> @llvm.atan2.v4f16(<4 x half> %a, <4 x half> %b) | ||
ret <4 x half> %elt.atan2 | ||
} | ||
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declare half @llvm.atan2.f16(half, half) | ||
declare float @llvm.atan2.f32(float, float) | ||
declare <4 x half> @llvm.atan2.v4f16(<4 x half>, <4 x half>) | ||
declare <4 x float> @llvm.atan2.v4f32(<4 x float>, <4 x float>) |