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//===-- WebAssemblyMCAsmInfo.cpp - WebAssembly asm properties -------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
///
/// \file
/// This file contains the declarations of the WebAssemblyMCAsmInfo
/// properties.
///
//===----------------------------------------------------------------------===//
#include "WebAssemblyMCAsmInfo.h"
#include "WebAssemblyMCTargetDesc.h"
#include "llvm/TargetParser/Triple.h"
using namespace llvm;
#define DEBUG_TYPE "wasm-mc-asm-info"
WebAssemblyMCAsmInfo::~WebAssemblyMCAsmInfo() = default; // anchor.
WebAssemblyMCAsmInfo::WebAssemblyMCAsmInfo(const Triple &T,
const MCTargetOptions &Options) {
CodePointerSize = CalleeSaveStackSlotSize = T.isArch64Bit() ? 8 : 4;
// TODO: What should MaxInstLength be?
UseDataRegionDirectives = true;
// Use .skip instead of .zero because .zero is confusing when used with two
// arguments (it doesn't actually zero things out).
ZeroDirective = "\t.skip\t";
Data8bitsDirective = "\t.int8\t";
Data16bitsDirective = "\t.int16\t";
Data32bitsDirective = "\t.int32\t";
Data64bitsDirective = "\t.int64\t";
AlignmentIsInBytes = false;
COMMDirectiveAlignmentIsInBytes = false;
LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment;
SupportsDebugInformation = true;
// When compilation is done on a cpp file by clang, the exception model info
// is stored in LangOptions, which is later used to set the info in
// TargetOptions and then MCAsmInfo in LLVMTargetMachine::initAsmInfo(). But
// this process does not happen when compiling bitcode directly with clang, so
// we make sure this info is set correctly.
if (WebAssembly::WasmEnableEH || WebAssembly::WasmEnableSjLj)
ExceptionsType = ExceptionHandling::Wasm;
}
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