751a546fa9
Issue: https://github.com/llvm/llvm-project/issues/99172 - [x] Implement `WavePrefixSum` clang builtin - [x] Link `WavePrefixSum` clang builtin with `hlsl_intrinsics.h` - [x] Add sema checks for `WavePrefixSum` to `CheckHLSLBuiltinFunctionCall` in `SemaChecking.cpp` - [x] Add codegen for `WavePrefixSum` to `EmitHLSLBuiltinExpr` in `CGBuiltin.cpp` - [x] Add codegen tests to `clang/test/CodeGenHLSL/builtins/WavePrefixSum.hlsl` - [x] Add sema tests to `clang/test/SemaHLSL/BuiltIns/WavePrefixSum-errors.hlsl` - [x] Create the `int_dx_WavePrefixSum` intrinsic in `IntrinsicsDirectX.td` - [x] Create the `DXILOpMapping` of `int_dx_WavePrefixSum` to `121` in `DXIL.td` - [x] Create the `WavePrefixSum.ll` and `WavePrefixSum_errors.ll` tests in `llvm/test/CodeGen/DirectX/` - [x] Create the `int_spv_WavePrefixSum` intrinsic in `IntrinsicsSPIRV.td` - [x] In SPIRVInstructionSelector.cpp create the `WavePrefixSum` lowering and map it to `int_spv_WavePrefixSum` in `SPIRVInstructionSelector::selectIntrinsic`. - [x] Create SPIR-V backend test case in `llvm/test/CodeGen/SPIRV/hlsl-intrinsics/WavePrefixSum.ll` I also added a new macro `GENERATE_HLSL_INTRINSIC_FUNCTION_SELECT_UNSIGNED` in conjunction with the new function `getUnsignedIntrinsicVariant` to make selecting unsigned variants of the intrinsic easier. As a result, I was able to replace `getWaveActiveSumIntrinsic`, `getWaveActiveMaxIntrinsic`, and `getWaveActiveMinIntrinsic` using the new macro.
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
//===- DirectXTargetTransformInfo.cpp - DirectX TTI ---------------*- C++
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//-*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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//===----------------------------------------------------------------------===//
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#include "DirectXTargetTransformInfo.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/IR/IntrinsicsDirectX.h"
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using namespace llvm;
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bool DirectXTTIImpl::isTargetIntrinsicWithScalarOpAtArg(
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Intrinsic::ID ID, unsigned ScalarOpdIdx) const {
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switch (ID) {
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case Intrinsic::dx_wave_readlane:
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return ScalarOpdIdx == 1;
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default:
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return false;
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}
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}
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bool DirectXTTIImpl::isTargetIntrinsicWithOverloadTypeAtArg(Intrinsic::ID ID,
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int OpdIdx) const {
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switch (ID) {
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case Intrinsic::dx_asdouble:
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case Intrinsic::dx_firstbitlow:
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case Intrinsic::dx_firstbitshigh:
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case Intrinsic::dx_firstbituhigh:
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case Intrinsic::dx_isinf:
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case Intrinsic::dx_isnan:
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case Intrinsic::dx_legacyf16tof32:
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case Intrinsic::dx_legacyf32tof16:
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return OpdIdx == 0;
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default:
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return OpdIdx == -1;
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}
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}
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bool DirectXTTIImpl::isTargetIntrinsicTriviallyScalarizable(
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Intrinsic::ID ID) const {
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switch (ID) {
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case Intrinsic::dx_asdouble:
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case Intrinsic::dx_firstbitlow:
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case Intrinsic::dx_firstbitshigh:
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case Intrinsic::dx_firstbituhigh:
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case Intrinsic::dx_frac:
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case Intrinsic::dx_isinf:
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case Intrinsic::dx_isnan:
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case Intrinsic::dx_legacyf16tof32:
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case Intrinsic::dx_legacyf32tof16:
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case Intrinsic::dx_rsqrt:
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case Intrinsic::dx_saturate:
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case Intrinsic::dx_splitdouble:
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case Intrinsic::dx_wave_readlane:
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case Intrinsic::dx_wave_reduce_max:
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case Intrinsic::dx_wave_reduce_min:
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case Intrinsic::dx_wave_reduce_sum:
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case Intrinsic::dx_wave_prefix_sum:
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case Intrinsic::dx_wave_reduce_umax:
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case Intrinsic::dx_wave_reduce_umin:
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case Intrinsic::dx_wave_reduce_usum:
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case Intrinsic::dx_wave_prefix_usum:
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case Intrinsic::dx_imad:
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case Intrinsic::dx_umad:
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case Intrinsic::dx_ddx_coarse:
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case Intrinsic::dx_ddy_coarse:
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case Intrinsic::dx_ddx_fine:
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case Intrinsic::dx_ddy_fine:
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return true;
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default:
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return false;
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}
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}
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