864767ab09
This refactors some code dealing with setting Wasm symbol types. Some of the code dealing with types was moved from `WebAssemblyUtilities` to `WebAssemblyTypeUtilities`. Reviewed By: sbc100 Differential Revision: https://reviews.llvm.org/D118121
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//===-- WebAssemblyUtilities - WebAssembly Utility Functions ---*- C++ -*-====//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file contains the declaration of the WebAssembly-specific
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/// utility functions.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WEBASSEMBLYUTILITIES_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_UTILS_WEBASSEMBLYUTILITIES_H
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#include "llvm/Support/CommandLine.h"
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namespace llvm {
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class MachineBasicBlock;
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class MachineInstr;
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class MachineOperand;
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class MCContext;
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class MCSymbolWasm;
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class WebAssemblyFunctionInfo;
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class WebAssemblySubtarget;
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namespace WebAssembly {
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bool isChild(const MachineInstr &MI, const WebAssemblyFunctionInfo &MFI);
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bool mayThrow(const MachineInstr &MI);
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// Exception handling / setjmp-longjmp handling command-line options
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extern cl::opt<bool> WasmEnableEmEH; // asm.js-style EH
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extern cl::opt<bool> WasmEnableEmSjLj; // asm.js-style SjLJ
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extern cl::opt<bool> WasmEnableEH; // EH using Wasm EH instructions
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extern cl::opt<bool> WasmEnableSjLj; // SjLj using Wasm EH instructions
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// Exception-related function names
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extern const char *const ClangCallTerminateFn;
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extern const char *const CxaBeginCatchFn;
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extern const char *const CxaRethrowFn;
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extern const char *const StdTerminateFn;
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extern const char *const PersonalityWrapperFn;
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/// Returns the operand number of a callee, assuming the argument is a call
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/// instruction.
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const MachineOperand &getCalleeOp(const MachineInstr &MI);
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/// Returns the __indirect_function_table, for use in call_indirect and in
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/// function bitcasts.
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MCSymbolWasm *
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getOrCreateFunctionTableSymbol(MCContext &Ctx,
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const WebAssemblySubtarget *Subtarget);
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/// Returns the __funcref_call_table, for use in funcref calls when lowered to
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/// table.set + call_indirect.
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MCSymbolWasm *
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getOrCreateFuncrefCallTableSymbol(MCContext &Ctx,
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const WebAssemblySubtarget *Subtarget);
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/// Find a catch instruction from an EH pad. Returns null if no catch
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/// instruction found or the catch is in an invalid location.
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MachineInstr *findCatch(MachineBasicBlock *EHPad);
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} // end namespace WebAssembly
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} // end namespace llvm
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#endif
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