forked from OSchip/llvm-project
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
//===- MCAsmInfoCOFF.cpp - COFF 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines target asm properties related what form asm statements
|
|
// should take in general on COFF-based targets
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/MC/MCAsmInfoCOFF.h"
|
|
#include "llvm/MC/MCDirectives.h"
|
|
|
|
using namespace llvm;
|
|
|
|
void MCAsmInfoCOFF::anchor() {}
|
|
|
|
MCAsmInfoCOFF::MCAsmInfoCOFF() {
|
|
// MingW 4.5 and later support .comm with log2 alignment, but .lcomm uses byte
|
|
// alignment.
|
|
COMMDirectiveAlignmentIsInBytes = false;
|
|
LCOMMDirectiveAlignmentType = LCOMM::ByteAlignment;
|
|
HasDotTypeDotSizeDirective = false;
|
|
HasSingleParameterDotFile = true;
|
|
WeakRefDirective = "\t.weak\t";
|
|
AvoidWeakIfComdat = true;
|
|
|
|
// Doesn't support visibility:
|
|
HiddenVisibilityAttr = HiddenDeclarationVisibilityAttr = MCSA_Invalid;
|
|
ProtectedVisibilityAttr = MCSA_Invalid;
|
|
|
|
// Set up DWARF directives
|
|
SupportsDebugInformation = true;
|
|
NeedsDwarfSectionOffsetDirective = true;
|
|
|
|
UseIntegratedAssembler = true;
|
|
|
|
// At least MSVC inline-asm does AShr.
|
|
UseLogicalShr = false;
|
|
|
|
// If this is a COFF target, assume that it supports associative comdats. It's
|
|
// part of the spec.
|
|
HasCOFFAssociativeComdats = true;
|
|
|
|
// We can generate constants in comdat sections that can be shared,
|
|
// but in order not to create null typed symbols, we actually need to
|
|
// make them global symbols as well.
|
|
HasCOFFComdatConstants = true;
|
|
}
|
|
|
|
void MCAsmInfoMicrosoft::anchor() {}
|
|
|
|
MCAsmInfoMicrosoft::MCAsmInfoMicrosoft() = default;
|
|
|
|
void MCAsmInfoGNUCOFF::anchor() {}
|
|
|
|
MCAsmInfoGNUCOFF::MCAsmInfoGNUCOFF() {
|
|
// If this is a GNU environment (mingw or cygwin), don't use associative
|
|
// comdats for jump tables, unwind information, and other data associated with
|
|
// a function.
|
|
HasCOFFAssociativeComdats = false;
|
|
|
|
// We don't create constants in comdat sections for MinGW.
|
|
HasCOFFComdatConstants = false;
|
|
}
|