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6480f49006
This patch improves the assembly output produced for string literals by using character literals in byte lists. This provides the benefits of having printable characters appear as such in the assembly output and of having strings kept as logical units on the same line. Reviewed By: daltenty Differential Revision: https://reviews.llvm.org/D80953
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
//===- MC/MCAsmInfoXCOFF.cpp - XCOFF asm properties ------------ *- 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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#include "llvm/MC/MCAsmInfoXCOFF.h"
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#include "llvm/ADT/StringExtras.h"
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using namespace llvm;
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void MCAsmInfoXCOFF::anchor() {}
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MCAsmInfoXCOFF::MCAsmInfoXCOFF() {
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IsLittleEndian = false;
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HasVisibilityOnlyWithLinkage = true;
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PrivateGlobalPrefix = "L..";
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PrivateLabelPrefix = "L..";
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SupportsQuotedNames = false;
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UseDotAlignForAlignment = true;
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ZeroDirective = "\t.space\t";
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ZeroDirectiveSupportsNonZeroValue = false;
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AsciiDirective = nullptr; // not supported
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AscizDirective = nullptr; // not supported
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ByteListDirective = "\t.byte\t";
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CharacterLiteralSyntax = ACLS_SingleQuotePrefix;
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// Use .vbyte for data definition to avoid directives that apply an implicit
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// alignment.
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Data16bitsDirective = "\t.vbyte\t2, ";
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Data32bitsDirective = "\t.vbyte\t4, ";
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COMMDirectiveAlignmentIsInBytes = false;
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LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment;
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HasDotTypeDotSizeDirective = false;
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UseIntegratedAssembler = false;
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NeedsFunctionDescriptors = true;
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}
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bool MCAsmInfoXCOFF::isAcceptableChar(char C) const {
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// QualName is allowed for a MCSymbolXCOFF, and
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// QualName contains '[' and ']'.
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if (C == '[' || C == ']')
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return true;
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// For AIX assembler, symbols may consist of numeric digits,
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// underscores, periods, uppercase or lowercase letters, or
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// any combination of these.
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return isAlnum(C) || C == '_' || C == '.';
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}
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