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 "SPIRVGlobalRegistry.h" 17#include "llvm/CodeGen/GlobalISel/CallLowering.h" 18 19namespace llvm { 20 21class SPIRVGlobalRegistry; 22class SPIRVTargetLowering; 23 24class SPIRVCallLowering : public CallLowering { 25private: 26 // Used to create and assign function, argument, and return type information. 27 SPIRVGlobalRegistry *GR; 28 29public: 30 SPIRVCallLowering(const SPIRVTargetLowering &TLI, SPIRVGlobalRegistry *GR); 31 32 // Built OpReturn or OpReturnValue. 33 bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val, 34 ArrayRef<Register> VRegs, FunctionLoweringInfo &FLI, 35 Register SwiftErrorVReg) const override; 36 37 // Build OpFunction, OpFunctionParameter, and any EntryPoint or Linkage data. 38 bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, 39 ArrayRef<ArrayRef<Register>> VRegs, 40 FunctionLoweringInfo &FLI) const override; 41 42 // Build OpCall, or replace with a builtin function. 43 bool lowerCall(MachineIRBuilder &MIRBuilder, 44 CallLoweringInfo &Info) const override; 45}; 46} // end namespace llvm 47 48#endif // LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H 49