diff --git a/llvm/include/llvm/MC/MCCodeEmitter.h b/llvm/include/llvm/MC/MCCodeEmitter.h --- a/llvm/include/llvm/MC/MCCodeEmitter.h +++ b/llvm/include/llvm/MC/MCCodeEmitter.h @@ -22,6 +22,13 @@ protected: // Can only create subclasses. MCCodeEmitter(); + /// EncodeInstruction - Encode the given \p Inst to bytes on the output stream + /// \p OS. Allows for an implementation of encodeInstruction that uses streams + /// instead of a SmallVector. + virtual void encodeInstruction(const MCInst &Inst, raw_ostream &OS, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const {} + public: MCCodeEmitter(const MCCodeEmitter &) = delete; MCCodeEmitter &operator=(const MCCodeEmitter &) = delete; @@ -36,11 +43,10 @@ /// \param OS output stream. virtual void emitPrefix(const MCInst &Inst, raw_ostream &OS, const MCSubtargetInfo &STI) const {} - /// EncodeInstruction - Encode the given \p Inst to bytes on the output - /// stream \p OS. - virtual void encodeInstruction(const MCInst &Inst, raw_ostream &OS, + /// EncodeInstruction - Encode the given \p Inst to bytes and append to \p CB. + virtual void encodeInstruction(const MCInst &Inst, SmallVectorImpl &CB, SmallVectorImpl &Fixups, - const MCSubtargetInfo &STI) const = 0; + const MCSubtargetInfo &STI) const; }; } // end namespace llvm diff --git a/llvm/include/llvm/MCA/CodeEmitter.h b/llvm/include/llvm/MCA/CodeEmitter.h --- a/llvm/include/llvm/MCA/CodeEmitter.h +++ b/llvm/include/llvm/MCA/CodeEmitter.h @@ -23,7 +23,6 @@ #include "llvm/MC/MCCodeEmitter.h" #include "llvm/MC/MCInst.h" #include "llvm/MC/MCSubtargetInfo.h" -#include "llvm/Support/raw_ostream.h" namespace llvm { namespace mca { @@ -38,7 +37,6 @@ const MCCodeEmitter &MCE; SmallString<256> Code; - raw_svector_ostream VecOS; ArrayRef Sequence; // An EncodingInfo pair stores information. Base (i.e. first) @@ -53,8 +51,7 @@ public: CodeEmitter(const MCSubtargetInfo &ST, const MCAsmBackend &AB, const MCCodeEmitter &CE, ArrayRef S) - : STI(ST), MAB(AB), MCE(CE), VecOS(Code), Sequence(S), - Encodings(S.size()) {} + : STI(ST), MAB(AB), MCE(CE), Sequence(S), Encodings(S.size()) {} StringRef getEncoding(unsigned MCID) { EncodingInfo EI = getOrCreateEncodingInfo(MCID); diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp --- a/llvm/lib/MC/MCAsmStreamer.cpp +++ b/llvm/lib/MC/MCAsmStreamer.cpp @@ -2217,13 +2217,12 @@ raw_ostream &OS = getCommentOS(); SmallString<256> Code; SmallVector Fixups; - raw_svector_ostream VecOS(Code); // If we have no code emitter, don't emit code. if (!getAssembler().getEmitterPtr()) return; - getAssembler().getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + getAssembler().getEmitter().encodeInstruction(Inst, Code, Fixups, STI); // If we are showing fixups, create symbolic markers in the encoded // representation. We do this by making a per-bit map to the fixup item index, diff --git a/llvm/lib/MC/MCAssembler.cpp b/llvm/lib/MC/MCAssembler.cpp --- a/llvm/lib/MC/MCAssembler.cpp +++ b/llvm/lib/MC/MCAssembler.cpp @@ -996,8 +996,7 @@ // probably do so more efficiently in many cases. SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - getEmitter().encodeInstruction(Relaxed, VecOS, Fixups, *F.getSubtargetInfo()); + getEmitter().encodeInstruction(Relaxed, Code, Fixups, *F.getSubtargetInfo()); // Update the fragment. F.setInst(Relaxed); diff --git a/llvm/lib/MC/MCCodeEmitter.cpp b/llvm/lib/MC/MCCodeEmitter.cpp --- a/llvm/lib/MC/MCCodeEmitter.cpp +++ b/llvm/lib/MC/MCCodeEmitter.cpp @@ -7,9 +7,18 @@ //===----------------------------------------------------------------------===// #include "llvm/MC/MCCodeEmitter.h" +#include "llvm/Support/raw_ostream.h" using namespace llvm; MCCodeEmitter::MCCodeEmitter() = default; MCCodeEmitter::~MCCodeEmitter() = default; + +void MCCodeEmitter::encodeInstruction(const MCInst &Inst, + SmallVectorImpl &CB, + SmallVectorImpl &Fixups, + const MCSubtargetInfo &STI) const { + raw_svector_ostream OS(CB); + encodeInstruction(Inst, OS, Fixups, STI); +} diff --git a/llvm/lib/MC/MCELFStreamer.cpp b/llvm/lib/MC/MCELFStreamer.cpp --- a/llvm/lib/MC/MCELFStreamer.cpp +++ b/llvm/lib/MC/MCELFStreamer.cpp @@ -551,8 +551,7 @@ MCAssembler &Assembler = getAssembler(); SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - Assembler.getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + Assembler.getEmitter().encodeInstruction(Inst, Code, Fixups, STI); for (auto &Fixup : Fixups) fixSymbolsInTLSFixups(Fixup.getValue()); diff --git a/llvm/lib/MC/MCMachOStreamer.cpp b/llvm/lib/MC/MCMachOStreamer.cpp --- a/llvm/lib/MC/MCMachOStreamer.cpp +++ b/llvm/lib/MC/MCMachOStreamer.cpp @@ -31,7 +31,6 @@ #include "llvm/MC/TargetRegistry.h" #include "llvm/Support/Casting.h" #include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/raw_ostream.h" #include #include @@ -486,8 +485,7 @@ SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - getAssembler().getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + getAssembler().getEmitter().encodeInstruction(Inst, Code, Fixups, STI); // Add the fixups and data. for (MCFixup &Fixup : Fixups) { diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp --- a/llvm/lib/MC/MCObjectStreamer.cpp +++ b/llvm/lib/MC/MCObjectStreamer.cpp @@ -471,8 +471,7 @@ insert(IF); SmallString<128> Code; - raw_svector_ostream VecOS(Code); - getAssembler().getEmitter().encodeInstruction(Inst, VecOS, IF->getFixups(), + getAssembler().getEmitter().encodeInstruction(Inst, Code, IF->getFixups(), STI); IF->getContents().append(Code.begin(), Code.end()); } diff --git a/llvm/lib/MC/MCSPIRVStreamer.cpp b/llvm/lib/MC/MCSPIRVStreamer.cpp --- a/llvm/lib/MC/MCSPIRVStreamer.cpp +++ b/llvm/lib/MC/MCSPIRVStreamer.cpp @@ -21,8 +21,7 @@ MCAssembler &Assembler = getAssembler(); SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - Assembler.getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + Assembler.getEmitter().encodeInstruction(Inst, Code, Fixups, STI); // Append the encoded instruction to the current data fragment (or create a // new such fragment if the current fragment is not a data fragment). diff --git a/llvm/lib/MC/MCWasmStreamer.cpp b/llvm/lib/MC/MCWasmStreamer.cpp --- a/llvm/lib/MC/MCWasmStreamer.cpp +++ b/llvm/lib/MC/MCWasmStreamer.cpp @@ -196,8 +196,7 @@ MCAssembler &Assembler = getAssembler(); SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - Assembler.getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + Assembler.getEmitter().encodeInstruction(Inst, Code, Fixups, STI); for (auto &Fixup : Fixups) fixSymbolsInTLSFixups(Fixup.getValue()); diff --git a/llvm/lib/MC/MCWinCOFFStreamer.cpp b/llvm/lib/MC/MCWinCOFFStreamer.cpp --- a/llvm/lib/MC/MCWinCOFFStreamer.cpp +++ b/llvm/lib/MC/MCWinCOFFStreamer.cpp @@ -53,8 +53,7 @@ SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - getAssembler().getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + getAssembler().getEmitter().encodeInstruction(Inst, Code, Fixups, STI); // Add the fixups and data. for (unsigned i = 0, e = Fixups.size(); i != e; ++i) { diff --git a/llvm/lib/MC/MCXCOFFStreamer.cpp b/llvm/lib/MC/MCXCOFFStreamer.cpp --- a/llvm/lib/MC/MCXCOFFStreamer.cpp +++ b/llvm/lib/MC/MCXCOFFStreamer.cpp @@ -118,8 +118,7 @@ MCAssembler &Assembler = getAssembler(); SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - Assembler.getEmitter().encodeInstruction(Inst, VecOS, Fixups, STI); + Assembler.getEmitter().encodeInstruction(Inst, Code, Fixups, STI); // Add the fixups and data. MCDataFragment *DF = getOrCreateDataFragment(&STI); diff --git a/llvm/lib/MCA/CodeEmitter.cpp b/llvm/lib/MCA/CodeEmitter.cpp --- a/llvm/lib/MCA/CodeEmitter.cpp +++ b/llvm/lib/MCA/CodeEmitter.cpp @@ -27,7 +27,7 @@ MAB.relaxInstruction(Relaxed, STI); EI.first = Code.size(); - MCE.encodeInstruction(Relaxed, VecOS, Fixups, STI); + MCE.encodeInstruction(Relaxed, Code, Fixups, STI); EI.second = Code.size() - EI.first; return EI; } diff --git a/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp b/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp --- a/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUMCInstLower.cpp @@ -285,11 +285,10 @@ (!STI.hasOffset3fBug() || !MI->isBranch())) { SmallVector Fixups; SmallVector CodeBytes; - raw_svector_ostream CodeStream(CodeBytes); std::unique_ptr InstEmitter(createSIMCCodeEmitter( *STI.getInstrInfo(), OutContext)); - InstEmitter->encodeInstruction(TmpInst, CodeStream, Fixups, STI); + InstEmitter->encodeInstruction(TmpInst, CodeBytes, Fixups, STI); assert(CodeBytes.size() == STI.getInstrInfo()->getInstSizeInBytes(*MI)); } @@ -308,10 +307,9 @@ // Disassemble instruction/operands to hex representation. SmallVector Fixups; SmallVector CodeBytes; - raw_svector_ostream CodeStream(CodeBytes); DumpCodeInstEmitter->encodeInstruction( - TmpInst, CodeStream, Fixups, MF->getSubtarget()); + TmpInst, CodeBytes, Fixups, MF->getSubtarget()); HexLines.resize(HexLines.size() + 1); std::string &HexLine = HexLines.back(); raw_string_ostream HexStream(HexLine); diff --git a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp --- a/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp +++ b/llvm/lib/Target/Hexagon/MCTargetDesc/HexagonAsmBackend.cpp @@ -51,8 +51,7 @@ MCInst &HMB) const { SmallVector Fixups; SmallString<256> Code; - raw_svector_ostream VecOS(Code); - E.encodeInstruction(HMB, VecOS, Fixups, *RF.getSubtargetInfo()); + E.encodeInstruction(HMB, Code, Fixups, *RF.getSubtargetInfo()); // Update the fragment. RF.setInst(HMB); diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp --- a/llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp +++ b/llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp @@ -844,8 +844,7 @@ SmallVector Fixups; SmallString<15> Code; - raw_svector_ostream VecOS(Code); - Emitter.encodeInstruction(Relaxed, VecOS, Fixups, *RF.getSubtargetInfo()); + Emitter.encodeInstruction(Relaxed, Code, Fixups, *RF.getSubtargetInfo()); const unsigned OldSize = RF.getContents().size(); const unsigned NewSize = Code.size(); assert(NewSize >= OldSize && "size decrease during relaxation?"); diff --git a/llvm/lib/Target/X86/X86MCInstLower.cpp b/llvm/lib/Target/X86/X86MCInstLower.cpp --- a/llvm/lib/Target/X86/X86MCInstLower.cpp +++ b/llvm/lib/Target/X86/X86MCInstLower.cpp @@ -108,8 +108,7 @@ if (InShadow) { SmallString<256> Code; SmallVector Fixups; - raw_svector_ostream VecOS(Code); - CodeEmitter->encodeInstruction(Inst, VecOS, Fixups, STI); + CodeEmitter->encodeInstruction(Inst, Code, Fixups, STI); CurrentShadowSize += Code.size(); if (CurrentShadowSize >= RequiredShadowSize) InShadow = false; // The shadow is big enough. Stop counting. @@ -1446,8 +1445,7 @@ SmallString<256> Code; if (!EmptyInst) { SmallVector Fixups; - raw_svector_ostream VecOS(Code); - CodeEmitter->encodeInstruction(MCI, VecOS, Fixups, getSubtargetInfo()); + CodeEmitter->encodeInstruction(MCI, Code, Fixups, getSubtargetInfo()); } if (Code.size() < MinSize) { diff --git a/llvm/tools/llvm-exegesis/lib/LlvmState.cpp b/llvm/tools/llvm-exegesis/lib/LlvmState.cpp --- a/llvm/tools/llvm-exegesis/lib/LlvmState.cpp +++ b/llvm/tools/llvm-exegesis/lib/LlvmState.cpp @@ -14,7 +14,6 @@ #include "llvm/MC/MCFixup.h" #include "llvm/MC/MCObjectFileInfo.h" #include "llvm/MC/TargetRegistry.h" -#include "llvm/Support/raw_ostream.h" #include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetOptions.h" #include "llvm/TargetParser/Host.h" @@ -134,9 +133,8 @@ *TheTargetMachine->getMCInstrInfo(), Context)); assert(CodeEmitter && "unable to create code emitter"); SmallVector Tmp; - raw_svector_ostream OS(Tmp); SmallVector Fixups; - CodeEmitter->encodeInstruction(Inst, OS, Fixups, + CodeEmitter->encodeInstruction(Inst, Tmp, Fixups, *TheTargetMachine->getMCSubtargetInfo()); return Tmp.size() > 0; }