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 19 namespace llvm { 20 21 class SPIRVGlobalRegistry; 22 class SPIRVTargetLowering; 23 24 class SPIRVCallLowering : public CallLowering { 25 private: 26 // Used to create and assign function, argument, and return type information. 27 SPIRVGlobalRegistry *GR; 28 29 public: 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