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https://github.com/c64scene-ar/llvm-6502.git
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7521964d28
This starts merging MCSection and MCSectionData. There are a few issues with the current split between MCSection and MCSectionData. * It optimizes the the not as important case. We want the production of .o files to be really fast, but the split puts the information used for .o emission in a separate data structure. * The ELF/COFF/MachO hierarchy is not represented in MCSectionData, leading to some ad-hoc ways to represent the various flags. * It makes it harder to remember where each item is. The attached patch starts merging the two by moving the alignment from MCSectionData to MCSection. Most of the patch is actually just dropping 'const', since MCSectionData is mutable, but MCSection was not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237936 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
//===-- RecordStreamer.h - Record asm defined and used symbols ---*- C++ -*===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_OBJECT_RECORDSTREAMER_H
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#define LLVM_LIB_OBJECT_RECORDSTREAMER_H
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#include "llvm/MC/MCStreamer.h"
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namespace llvm {
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class RecordStreamer : public MCStreamer {
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public:
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enum State { NeverSeen, Global, Defined, DefinedGlobal, Used };
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private:
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StringMap<State> Symbols;
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void markDefined(const MCSymbol &Symbol);
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void markGlobal(const MCSymbol &Symbol);
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void markUsed(const MCSymbol &Symbol);
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void visitUsedSymbol(const MCSymbol &Sym) override;
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public:
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typedef StringMap<State>::const_iterator const_iterator;
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const_iterator begin();
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const_iterator end();
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RecordStreamer(MCContext &Context);
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void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) override;
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void EmitLabel(MCSymbol *Symbol) override;
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void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) override;
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bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override;
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void EmitZerofill(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override;
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};
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}
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#endif
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