WebAssemblyCallLowering.cpp File Reference

This file implements the lowering of LLVM calls to machine code calls for GlobalISel. More...

#include "WebAssemblyCallLowering.h"
#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
#include "Utils/WasmAddressSpaces.h"
#include "WebAssemblyISelLowering.h"
#include "WebAssemblyMachineFunctionInfo.h"
#include "WebAssemblyRegisterInfo.h"
#include "WebAssemblySubtarget.h"
#include "WebAssemblyUtilities.h"
#include "llvm/CodeGen/Analysis.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/LowLevelTypeUtils.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/RegisterBankInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/ErrorHandling.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "wasm-call-lowering"

Functions
static bool	callingConvSupported (CallingConv::ID CallConv)
static unsigned	extendOpFromFlags (ISD::ArgFlagsTy Flags)
static LLT	getLLTForWasmMVT (MVT Ty, const DataLayout &DL)
static unsigned	getWasmArgumentOpcode (MVT ArgType)
static Register	buildWasmArgument (unsigned Idx, MVT ArgVT, LLT ArgLLT, MachineIRBuilder &MIRBuilder, Register Def=Register())

Detailed Description

This file implements the lowering of LLVM calls to machine code calls for GlobalISel.

Definition in file WebAssemblyCallLowering.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "wasm-call-lowering"

Definition at line 34 of file WebAssemblyCallLowering.cpp.

Function Documentation

buildWasmArgument()

Register buildWasmArgument ( unsigned Idx, MVT ArgVT, LLT ArgLLT, MachineIRBuilder & MIRBuilder, Register Def = Register() )

static

Definition at line 236 of file WebAssemblyCallLowering.cpp.

References llvm::MachineInstrBuilder::addDef(), llvm::MachineInstrBuilder::addImm(), assert(), llvm::MachineIRBuilder::buildInstr(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::MachineIRBuilder::getMF(), llvm::MachineRegisterInfo::getRegClassOrRegBank(), llvm::MachineFunction::getRegInfo(), llvm::MachineIRBuilder::getTII(), getWasmArgumentOpcode(), llvm::PointerUnion< PTs >::isNull(), llvm::MachineRegisterInfo::setRegClass(), llvm::MachineRegisterInfo::setType(), and TII.

Referenced by llvm::WebAssemblyCallLowering::lowerFormalArguments().

callingConvSupported()

bool callingConvSupported ( CallingConv::ID CallConv )

static

Definition at line 39 of file WebAssemblyCallLowering.cpp.

References llvm::CallingConv::C, llvm::CallingConv::Cold, llvm::CallingConv::CXX_FAST_TLS, llvm::CallingConv::Fast, llvm::CallingConv::PreserveAll, llvm::CallingConv::PreserveMost, llvm::CallingConv::Swift, and llvm::CallingConv::WASM_EmscriptenInvoke.

Referenced by llvm::WebAssemblyCallLowering::lowerCall(), and llvm::WebAssemblyCallLowering::lowerFormalArguments().

extendOpFromFlags()

unsigned extendOpFromFlags ( ISD::ArgFlagsTy Flags )

static

Definition at line 53 of file WebAssemblyCallLowering.cpp.

getLLTForWasmMVT()

LLT getLLTForWasmMVT ( MVT Ty, const DataLayout & DL )

static

Definition at line 61 of file WebAssemblyCallLowering.cpp.

References DL, llvm::getLLTForMVT(), llvm::LLT::pointer(), llvm::WebAssembly::WASM_ADDRESS_SPACE_EXTERNREF, and llvm::WebAssembly::WASM_ADDRESS_SPACE_FUNCREF.

Referenced by llvm::WebAssemblyCallLowering::lowerCall(), llvm::WebAssemblyCallLowering::lowerFormalArguments(), and llvm::WebAssemblyCallLowering::lowerReturn().

getWasmArgumentOpcode()

unsigned getWasmArgumentOpcode ( MVT ArgType )

static

Definition at line 198 of file WebAssemblyCallLowering.cpp.

References llvm_unreachable, and llvm::MVT::SimpleTy.

Referenced by buildWasmArgument().