1*0fca6ea1SDimitry Andric //==- RegAllocFast.h ----------- fast register allocator ----------*-C++-*-==// 2*0fca6ea1SDimitry Andric // 3*0fca6ea1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*0fca6ea1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5*0fca6ea1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*0fca6ea1SDimitry Andric // 7*0fca6ea1SDimitry Andric //===----------------------------------------------------------------------===// 8*0fca6ea1SDimitry Andric 9*0fca6ea1SDimitry Andric #ifndef LLVM_CODEGEN_REGALLOCFAST_H 10*0fca6ea1SDimitry Andric #define LLVM_CODEGEN_REGALLOCFAST_H 11*0fca6ea1SDimitry Andric 12*0fca6ea1SDimitry Andric #include "llvm/CodeGen/MachinePassManager.h" 13*0fca6ea1SDimitry Andric #include "llvm/CodeGen/RegAllocCommon.h" 14*0fca6ea1SDimitry Andric 15*0fca6ea1SDimitry Andric namespace llvm { 16*0fca6ea1SDimitry Andric 17*0fca6ea1SDimitry Andric struct RegAllocFastPassOptions { 18*0fca6ea1SDimitry Andric RegAllocFilterFunc Filter = nullptr; 19*0fca6ea1SDimitry Andric StringRef FilterName = "all"; 20*0fca6ea1SDimitry Andric bool ClearVRegs = true; 21*0fca6ea1SDimitry Andric }; 22*0fca6ea1SDimitry Andric 23*0fca6ea1SDimitry Andric class RegAllocFastPass : public PassInfoMixin<RegAllocFastPass> { 24*0fca6ea1SDimitry Andric RegAllocFastPassOptions Opts; 25*0fca6ea1SDimitry Andric 26*0fca6ea1SDimitry Andric public: 27*0fca6ea1SDimitry Andric RegAllocFastPass(RegAllocFastPassOptions Opts = RegAllocFastPassOptions()) 28*0fca6ea1SDimitry Andric : Opts(Opts) {} 29*0fca6ea1SDimitry Andric 30*0fca6ea1SDimitry Andric MachineFunctionProperties getRequiredProperties() { 31*0fca6ea1SDimitry Andric return MachineFunctionProperties().set( 32*0fca6ea1SDimitry Andric MachineFunctionProperties::Property::NoPHIs); 33*0fca6ea1SDimitry Andric } 34*0fca6ea1SDimitry Andric 35*0fca6ea1SDimitry Andric MachineFunctionProperties getSetProperties() { 36*0fca6ea1SDimitry Andric if (Opts.ClearVRegs) { 37*0fca6ea1SDimitry Andric return MachineFunctionProperties().set( 38*0fca6ea1SDimitry Andric MachineFunctionProperties::Property::NoVRegs); 39*0fca6ea1SDimitry Andric } 40*0fca6ea1SDimitry Andric 41*0fca6ea1SDimitry Andric return MachineFunctionProperties(); 42*0fca6ea1SDimitry Andric } 43*0fca6ea1SDimitry Andric 44*0fca6ea1SDimitry Andric MachineFunctionProperties getClearedProperties() { 45*0fca6ea1SDimitry Andric return MachineFunctionProperties().set( 46*0fca6ea1SDimitry Andric MachineFunctionProperties::Property::IsSSA); 47*0fca6ea1SDimitry Andric } 48*0fca6ea1SDimitry Andric 49*0fca6ea1SDimitry Andric PreservedAnalyses run(MachineFunction &MF, MachineFunctionAnalysisManager &); 50*0fca6ea1SDimitry Andric 51*0fca6ea1SDimitry Andric void printPipeline(raw_ostream &OS, 52*0fca6ea1SDimitry Andric function_ref<StringRef(StringRef)> MapClassName2PassName); 53*0fca6ea1SDimitry Andric }; 54*0fca6ea1SDimitry Andric 55*0fca6ea1SDimitry Andric } // namespace llvm 56*0fca6ea1SDimitry Andric 57*0fca6ea1SDimitry Andric #endif // LLVM_CODEGEN_REGALLOCFAST_H 58