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96385f796a
Summary: This adds dummy implementation of `EmitRawText` in `MCNullStreamer`. This fixes the behavior of `AsmPrinter` with `MCNullStreamer` on targets on which no integrated assembler is used. An attempt to emit inline asm on such a target would previously lead to a crash, since `AsmPrinter` does not check for `hasRawTextSupport` in `EmitInlineAsm` and calls `EmitRawText` anyway if integrated assembler is disabled (the behavior has changed in D2686). Error message printed by MCStreamer: > EmitRawText called on an MCStreamer that doesn't support it, something > must not be fully mc'ized Patch by Eugene Sharygin Reviewers: dsanders, echristo Reviewed By: dsanders Subscribers: eraman, llvm-commits Differential Revision: https://reviews.llvm.org/D53938 llvm-svn: 345841
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
//===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
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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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#include "llvm/ADT/StringRef.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCSymbol.h"
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using namespace llvm;
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namespace {
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class MCNullStreamer : public MCStreamer {
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public:
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MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
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/// @name MCStreamer Interface
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/// @{
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bool hasRawTextSupport() const override { return true; }
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void EmitRawTextImpl(StringRef String) override {}
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bool EmitSymbolAttribute(MCSymbol *Symbol,
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MCSymbolAttr Attribute) override {
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return true;
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}
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void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
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unsigned ByteAlignment) override {}
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void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
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uint64_t Size = 0, unsigned ByteAlignment = 0,
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SMLoc Loc = SMLoc()) override {}
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void EmitGPRel32Value(const MCExpr *Value) override {}
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void BeginCOFFSymbolDef(const MCSymbol *Symbol) override {}
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void EmitCOFFSymbolStorageClass(int StorageClass) override {}
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void EmitCOFFSymbolType(int Type) override {}
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void EndCOFFSymbolDef() override {}
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};
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}
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MCStreamer *llvm::createNullStreamer(MCContext &Context) {
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return new MCNullStreamer(Context);
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}
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