1 //===--- SPIRVCallLowering.h - Call lowering --------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file describes how to lower LLVM calls to machine code calls. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H 14 #define LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H 15 16 #include "llvm/CodeGen/GlobalISel/CallLowering.h" 17 18 namespace llvm { 19 20 class SPIRVGlobalRegistry; 21 class SPIRVSubtarget; 22 class SPIRVTargetLowering; 23 24 class SPIRVCallLowering : public CallLowering { 25 private: 26 const SPIRVSubtarget &ST; 27 // Used to create and assign function, argument, and return type information. 28 SPIRVGlobalRegistry *GR; 29 30 public: 31 SPIRVCallLowering(const SPIRVTargetLowering &TLI, const SPIRVSubtarget &ST, 32 SPIRVGlobalRegistry *GR); 33 34 // Built OpReturn or OpReturnValue. 35 bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val, 36 ArrayRef<Register> VRegs, FunctionLoweringInfo &FLI, 37 Register SwiftErrorVReg) const override; 38 39 // Build OpFunction, OpFunctionParameter, and any EntryPoint or Linkage data. 40 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, 41 ArrayRef<ArrayRef<Register>> VRegs, 42 FunctionLoweringInfo &FLI) const override; 43 44 // Build OpCall, or replace with a builtin function. 45 bool lowerCall(MachineIRBuilder &MIRBuilder, 46 CallLoweringInfo &Info) const override; 47 }; 48 } // end namespace llvm 49 50 #endif // LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H 51