1 //===- DirectXTargetTransformInfo.cpp - DirectX TTI ---------------*- C++ 2 //-*-===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 //===----------------------------------------------------------------------===// 11 12 #include "DirectXTargetTransformInfo.h" 13 #include "llvm/IR/Intrinsics.h" 14 #include "llvm/IR/IntrinsicsDirectX.h" 15 16 using namespace llvm; 17 18 bool DirectXTTIImpl::isTargetIntrinsicWithScalarOpAtArg(Intrinsic::ID ID, 19 unsigned ScalarOpdIdx) { 20 switch (ID) { 21 case Intrinsic::dx_wave_readlane: 22 return ScalarOpdIdx == 1; 23 default: 24 return false; 25 } 26 } 27 28 bool DirectXTTIImpl::isTargetIntrinsicWithOverloadTypeAtArg(Intrinsic::ID ID, 29 int OpdIdx) { 30 switch (ID) { 31 case Intrinsic::dx_asdouble: 32 return OpdIdx == 0; 33 default: 34 return OpdIdx == -1; 35 } 36 } 37 38 bool DirectXTTIImpl::isTargetIntrinsicTriviallyScalarizable( 39 Intrinsic::ID ID) const { 40 switch (ID) { 41 case Intrinsic::dx_frac: 42 case Intrinsic::dx_rsqrt: 43 case Intrinsic::dx_wave_reduce_max: 44 case Intrinsic::dx_wave_reduce_umax: 45 case Intrinsic::dx_wave_reduce_sum: 46 case Intrinsic::dx_wave_reduce_usum: 47 case Intrinsic::dx_wave_readlane: 48 case Intrinsic::dx_asdouble: 49 case Intrinsic::dx_splitdouble: 50 case Intrinsic::dx_firstbituhigh: 51 case Intrinsic::dx_firstbitshigh: 52 case Intrinsic::dx_firstbitlow: 53 return true; 54 default: 55 return false; 56 } 57 } 58