blob: 1398d7d9dfc2878b447454df634ed86ea68faba3 [file] [log] [blame]
//===-- WebAssemblyUtilities - WebAssembly Utility Functions ---*- C++ -*-====//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
/// \file
/// This file contains the declaration of the WebAssembly-specific
/// utility functions.
namespace llvm {
class MachineBasicBlock;
class MachineInstr;
class MachineOperand;
class MCContext;
class MCSymbolWasm;
class StringRef;
class WebAssemblyFunctionInfo;
class WebAssemblySubtarget;
namespace WebAssembly {
bool isChild(const MachineInstr &MI, const WebAssemblyFunctionInfo &MFI);
bool mayThrow(const MachineInstr &MI);
// Exception-related function names
extern const char *const ClangCallTerminateFn;
extern const char *const CxaBeginCatchFn;
extern const char *const CxaRethrowFn;
extern const char *const StdTerminateFn;
extern const char *const PersonalityWrapperFn;
/// Returns the operand number of a callee, assuming the argument is a call
/// instruction.
const MachineOperand &getCalleeOp(const MachineInstr &MI);
/// Returns the __indirect_function_table, for use in call_indirect and in
/// function bitcasts.
MCSymbolWasm *
getOrCreateFunctionTableSymbol(MCContext &Ctx,
const WebAssemblySubtarget *Subtarget);
/// Find a catch instruction from an EH pad. Returns null if no catch
/// instruction found or the catch is in an invalid location.
MachineInstr *findCatch(MachineBasicBlock *EHPad);
} // end namespace WebAssembly
} // end namespace llvm