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https://github.com/RPCS3/llvm.git
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David Tenty
09fb75f139
Summary: This patch enable assembly output of local commons for AIX using .lcomm directives. Adds a EmitXCOFFLocalCommonSymbol to MCStreamer so we can emit the AIX version of .lcomm assembly directives which include a csect name. Handle the case of BSS locals in PPCAIXAsmPrinter by using EmitXCOFFLocalCommonSymbol. Adds a test for generating .lcomm on AIX Targets. Reviewers: cebowleratibm, hubert.reinterpretcast, Xiangling_L, jasonliu, sfertile Reviewed By: sfertile Subscribers: wuzish, nemanjai, hiraditya, kbarton, MaskRay, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D64825 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@368306 91177308-0d34-0410-b5e6-96231b3b80d8
50 lines
1.8 KiB
C++
50 lines
1.8 KiB
C++
//===- lib/MC/MCSectionXCOFF.cpp - XCOFF Code Section Representation ------===//
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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/MCSectionXCOFF.h"
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#include "llvm/MC/MCAsmInfo.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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MCSectionXCOFF::~MCSectionXCOFF() = default;
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void MCSectionXCOFF::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
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raw_ostream &OS,
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const MCExpr *Subsection) const {
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if (getKind().isText()) {
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if (getMappingClass() != XCOFF::XMC_PR)
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llvm_unreachable("Unsupported storage-mapping class for .text csect");
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OS << "\t.csect " << getSectionName() << "["
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<< "PR"
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<< "]" << '\n';
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return;
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}
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if (getKind().isBSSLocal() || getKind().isCommon()) {
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if (getMappingClass() != XCOFF::XMC_RW &&
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getMappingClass() != XCOFF::XMC_BS)
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llvm_unreachable("Generated a storage-mapping class for a common/bss "
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"csect we don't understand how to switch to.");
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if (getCSectType() != XCOFF::XTY_CM)
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llvm_unreachable("wrong csect type for .bss csect");
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// Don't have to print a directive for switching to section for commons.
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// '.comm' and '.lcomm' directives for the variable will create the needed
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// csect.
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return;
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}
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report_fatal_error("Printing for this SectionKind is unimplemented.");
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}
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bool MCSectionXCOFF::UseCodeAlign() const { return getKind().isText(); }
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bool MCSectionXCOFF::isVirtualSection() const { return XCOFF::XTY_CM == Type; }
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