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-rw-r--r--lib/Target/PTX/PTXMCAsmStreamer.cpp556
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diff --git a/lib/Target/PTX/PTXMCAsmStreamer.cpp b/lib/Target/PTX/PTXMCAsmStreamer.cpp
deleted file mode 100644
index 3ed67a6..0000000
--- a/lib/Target/PTX/PTXMCAsmStreamer.cpp
+++ /dev/null
@@ -1,556 +0,0 @@
-//===-- PTXMCAsmStreamer.cpp - PTX Text Assembly Output -------------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/ADT/OwningPtr.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCCodeEmitter.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCInstPrinter.h"
-#include "llvm/MC/MCStreamer.h"
-#include "llvm/MC/MCSymbol.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/Support/PathV2.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace llvm;
-
-namespace {
-class PTXMCAsmStreamer : public MCStreamer {
- formatted_raw_ostream &OS;
- const MCAsmInfo &MAI;
- OwningPtr<MCInstPrinter> InstPrinter;
- OwningPtr<MCCodeEmitter> Emitter;
-
- SmallString<128> CommentToEmit;
- raw_svector_ostream CommentStream;
-
- unsigned IsVerboseAsm : 1;
- unsigned ShowInst : 1;
-
-public:
- PTXMCAsmStreamer(MCContext &Context,
- formatted_raw_ostream &os,
- bool isVerboseAsm, bool useLoc,
- MCInstPrinter *printer,
- MCCodeEmitter *emitter,
- bool showInst)
- : MCStreamer(Context), OS(os), MAI(Context.getAsmInfo()),
- InstPrinter(printer), Emitter(emitter), CommentStream(CommentToEmit),
- IsVerboseAsm(isVerboseAsm),
- ShowInst(showInst) {
- if (InstPrinter && IsVerboseAsm)
- InstPrinter->setCommentStream(CommentStream);
- }
-
- ~PTXMCAsmStreamer() {}
-
- inline void EmitEOL() {
- // If we don't have any comments, just emit a \n.
- if (!IsVerboseAsm) {
- OS << '\n';
- return;
- }
- EmitCommentsAndEOL();
- }
- void EmitCommentsAndEOL();
-
- /// isVerboseAsm - Return true if this streamer supports verbose assembly at
- /// all.
- virtual bool isVerboseAsm() const { return IsVerboseAsm; }
-
- /// hasRawTextSupport - We support EmitRawText.
- virtual bool hasRawTextSupport() const { return true; }
-
- /// AddComment - Add a comment that can be emitted to the generated .s
- /// file if applicable as a QoI issue to make the output of the compiler
- /// more readable. This only affects the MCAsmStreamer, and only when
- /// verbose assembly output is enabled.
- virtual void AddComment(const Twine &T);
-
- /// AddEncodingComment - Add a comment showing the encoding of an instruction.
- virtual void AddEncodingComment(const MCInst &Inst);
-
- /// GetCommentOS - Return a raw_ostream that comments can be written to.
- /// Unlike AddComment, you are required to terminate comments with \n if you
- /// use this method.
- virtual raw_ostream &GetCommentOS() {
- if (!IsVerboseAsm)
- return nulls(); // Discard comments unless in verbose asm mode.
- return CommentStream;
- }
-
- /// AddBlankLine - Emit a blank line to a .s file to pretty it up.
- virtual void AddBlankLine() {
- EmitEOL();
- }
-
- /// @name MCStreamer Interface
- /// @{
-
- virtual void ChangeSection(const MCSection *Section);
- virtual void InitSections() { /* PTX does not use sections */ }
-
- virtual void EmitLabel(MCSymbol *Symbol);
-
- virtual void EmitAssemblerFlag(MCAssemblerFlag Flag);
-
- virtual void EmitThumbFunc(MCSymbol *Func);
-
- virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value);
-
- virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol);
-
- virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
- const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize);
-
- virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
-
- virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue);
- virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol);
- virtual void EmitCOFFSymbolStorageClass(int StorageClass);
- virtual void EmitCOFFSymbolType(int Type);
- virtual void EndCOFFSymbolDef();
- virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value);
- virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
-
- /// EmitLocalCommonSymbol - Emit a local common (.lcomm) symbol.
- ///
- /// @param Symbol - The common symbol to emit.
- /// @param Size - The size of the common symbol.
- /// @param ByteAlignment - The alignment of the common symbol in bytes.
- virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment);
-
- virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
- unsigned Size = 0, unsigned ByteAlignment = 0);
-
- virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment = 0);
-
- virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
-
- virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace);
- virtual void EmitULEB128Value(const MCExpr *Value);
- virtual void EmitSLEB128Value(const MCExpr *Value);
- virtual void EmitGPRel32Value(const MCExpr *Value);
-
-
- virtual void EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace);
-
- virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
- unsigned ValueSize = 1,
- unsigned MaxBytesToEmit = 0);
-
- virtual void EmitCodeAlignment(unsigned ByteAlignment,
- unsigned MaxBytesToEmit = 0);
-
- virtual bool EmitValueToOffset(const MCExpr *Offset,
- unsigned char Value = 0);
-
- virtual void EmitFileDirective(StringRef Filename);
- virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
- StringRef Filename);
-
- virtual void EmitInstruction(const MCInst &Inst);
-
- /// EmitRawText - If this file is backed by an assembly streamer, this dumps
- /// the specified string in the output .s file. This capability is
- /// indicated by the hasRawTextSupport() predicate.
- virtual void EmitRawText(StringRef String);
-
- virtual void FinishImpl();
-
- /// @}
-
-}; // class PTXMCAsmStreamer
-
-}
-
-/// TODO: Add appropriate implementation of Emit*() methods when needed
-
-void PTXMCAsmStreamer::AddComment(const Twine &T) {
- if (!IsVerboseAsm) return;
-
- // Make sure that CommentStream is flushed.
- CommentStream.flush();
-
- T.toVector(CommentToEmit);
- // Each comment goes on its own line.
- CommentToEmit.push_back('\n');
-
- // Tell the comment stream that the vector changed underneath it.
- CommentStream.resync();
-}
-
-void PTXMCAsmStreamer::EmitCommentsAndEOL() {
- if (CommentToEmit.empty() && CommentStream.GetNumBytesInBuffer() == 0) {
- OS << '\n';
- return;
- }
-
- CommentStream.flush();
- StringRef Comments = CommentToEmit.str();
-
- assert(Comments.back() == '\n' &&
- "Comment array not newline terminated");
- do {
- // Emit a line of comments.
- OS.PadToColumn(MAI.getCommentColumn());
- size_t Position = Comments.find('\n');
- OS << MAI.getCommentString() << ' ' << Comments.substr(0, Position) << '\n';
-
- Comments = Comments.substr(Position+1);
- } while (!Comments.empty());
-
- CommentToEmit.clear();
- // Tell the comment stream that the vector changed underneath it.
- CommentStream.resync();
-}
-
-static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
- assert(Bytes && "Invalid size!");
- return Value & ((uint64_t) (int64_t) -1 >> (64 - Bytes * 8));
-}
-
-void PTXMCAsmStreamer::ChangeSection(const MCSection *Section) {
- assert(Section && "Cannot switch to a null section!");
-}
-
-void PTXMCAsmStreamer::EmitLabel(MCSymbol *Symbol) {
- assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
- assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
- assert(getCurrentSection() && "Cannot emit before setting section!");
-
- OS << *Symbol << MAI.getLabelSuffix();
- EmitEOL();
- Symbol->setSection(*getCurrentSection());
-}
-
-void PTXMCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {}
-
-void PTXMCAsmStreamer::EmitThumbFunc(MCSymbol *Func) {}
-
-void PTXMCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- OS << *Symbol << " = " << *Value;
- EmitEOL();
-
- // FIXME: Lift context changes into super class.
- Symbol->setVariableValue(Value);
-}
-
-void PTXMCAsmStreamer::EmitWeakReference(MCSymbol *Alias,
- const MCSymbol *Symbol) {
- OS << ".weakref " << *Alias << ", " << *Symbol;
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
- const MCSymbol *LastLabel,
- const MCSymbol *Label,
- unsigned PointerSize) {
- report_fatal_error("Unimplemented.");
-}
-
-void PTXMCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
- MCSymbolAttr Attribute) {}
-
-void PTXMCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
-
-void PTXMCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {}
-
-void PTXMCAsmStreamer::EmitCOFFSymbolStorageClass (int StorageClass) {}
-
-void PTXMCAsmStreamer::EmitCOFFSymbolType (int Type) {}
-
-void PTXMCAsmStreamer::EndCOFFSymbolDef() {}
-
-void PTXMCAsmStreamer::EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
-
-void PTXMCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment) {}
-
-void PTXMCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
- unsigned ByteAlignment) {}
-
-void PTXMCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
- unsigned Size, unsigned ByteAlignment) {}
-
-void PTXMCAsmStreamer::EmitTBSSSymbol(const MCSection *Section,
- MCSymbol *Symbol,
- uint64_t Size, unsigned ByteAlignment) {}
-
-static inline char toOctal(int X) { return (X&7)+'0'; }
-
-static void PrintQuotedString(StringRef Data, raw_ostream &OS) {
- OS << '"';
-
- for (unsigned i = 0, e = Data.size(); i != e; ++i) {
- unsigned char C = Data[i];
- if (C == '"' || C == '\\') {
- OS << '\\' << (char)C;
- continue;
- }
-
- if (isprint((unsigned char)C)) {
- OS << (char)C;
- continue;
- }
-
- switch (C) {
- case '\b': OS << "\\b"; break;
- case '\f': OS << "\\f"; break;
- case '\n': OS << "\\n"; break;
- case '\r': OS << "\\r"; break;
- case '\t': OS << "\\t"; break;
- default:
- OS << '\\';
- OS << toOctal(C >> 6);
- OS << toOctal(C >> 3);
- OS << toOctal(C >> 0);
- break;
- }
- }
-
- OS << '"';
-}
-
-void PTXMCAsmStreamer::EmitBytes(StringRef Data, unsigned AddrSpace) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
- if (Data.empty()) return;
-
- if (Data.size() == 1) {
- OS << MAI.getData8bitsDirective(AddrSpace);
- OS << (unsigned)(unsigned char)Data[0];
- EmitEOL();
- return;
- }
-
- // If the data ends with 0 and the target supports .asciz, use it, otherwise
- // use .ascii
- if (MAI.getAscizDirective() && Data.back() == 0) {
- OS << MAI.getAscizDirective();
- Data = Data.substr(0, Data.size()-1);
- } else {
- OS << MAI.getAsciiDirective();
- }
-
- OS << ' ';
- PrintQuotedString(Data, OS);
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
- unsigned AddrSpace) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
- const char *Directive = 0;
- switch (Size) {
- default: break;
- case 1: Directive = MAI.getData8bitsDirective(AddrSpace); break;
- case 2: Directive = MAI.getData16bitsDirective(AddrSpace); break;
- case 4: Directive = MAI.getData32bitsDirective(AddrSpace); break;
- case 8:
- Directive = MAI.getData64bitsDirective(AddrSpace);
- // If the target doesn't support 64-bit data, emit as two 32-bit halves.
- if (Directive) break;
- int64_t IntValue;
- if (!Value->EvaluateAsAbsolute(IntValue))
- report_fatal_error("Don't know how to emit this value.");
- if (getContext().getAsmInfo().isLittleEndian()) {
- EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
- EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
- } else {
- EmitIntValue((uint32_t)(IntValue >> 32), 4, AddrSpace);
- EmitIntValue((uint32_t)(IntValue >> 0 ), 4, AddrSpace);
- }
- return;
- }
-
- assert(Directive && "Invalid size for machine code value!");
- OS << Directive << *Value;
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::EmitULEB128Value(const MCExpr *Value) {
- assert(MAI.hasLEB128() && "Cannot print a .uleb");
- OS << ".uleb128 " << *Value;
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) {
- assert(MAI.hasLEB128() && "Cannot print a .sleb");
- OS << ".sleb128 " << *Value;
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
- assert(MAI.getGPRel32Directive() != 0);
- OS << MAI.getGPRel32Directive() << *Value;
- EmitEOL();
-}
-
-
-/// EmitFill - Emit NumBytes bytes worth of the value specified by
-/// FillValue. This implements directives such as '.space'.
-void PTXMCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue,
- unsigned AddrSpace) {
- if (NumBytes == 0) return;
-
- if (AddrSpace == 0)
- if (const char *ZeroDirective = MAI.getZeroDirective()) {
- OS << ZeroDirective << NumBytes;
- if (FillValue != 0)
- OS << ',' << (int)FillValue;
- EmitEOL();
- return;
- }
-
- // Emit a byte at a time.
- MCStreamer::EmitFill(NumBytes, FillValue, AddrSpace);
-}
-
-void PTXMCAsmStreamer::EmitValueToAlignment(unsigned ByteAlignment,
- int64_t Value,
- unsigned ValueSize,
- unsigned MaxBytesToEmit) {
- // Some assemblers don't support non-power of two alignments, so we always
- // emit alignments as a power of two if possible.
- if (isPowerOf2_32(ByteAlignment)) {
- switch (ValueSize) {
- default: llvm_unreachable("Invalid size for machine code value!");
- case 1: OS << MAI.getAlignDirective(); break;
- // FIXME: use MAI for this!
- case 2: OS << ".p2alignw "; break;
- case 4: OS << ".p2alignl "; break;
- case 8: llvm_unreachable("Unsupported alignment size!");
- }
-
- if (MAI.getAlignmentIsInBytes())
- OS << ByteAlignment;
- else
- OS << Log2_32(ByteAlignment);
-
- if (Value || MaxBytesToEmit) {
- OS << ", 0x";
- OS.write_hex(truncateToSize(Value, ValueSize));
-
- if (MaxBytesToEmit)
- OS << ", " << MaxBytesToEmit;
- }
- EmitEOL();
- return;
- }
-
- // Non-power of two alignment. This is not widely supported by assemblers.
- // FIXME: Parameterize this based on MAI.
- switch (ValueSize) {
- default: llvm_unreachable("Invalid size for machine code value!");
- case 1: OS << ".balign"; break;
- case 2: OS << ".balignw"; break;
- case 4: OS << ".balignl"; break;
- case 8: llvm_unreachable("Unsupported alignment size!");
- }
-
- OS << ' ' << ByteAlignment;
- OS << ", " << truncateToSize(Value, ValueSize);
- if (MaxBytesToEmit)
- OS << ", " << MaxBytesToEmit;
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::EmitCodeAlignment(unsigned ByteAlignment,
- unsigned MaxBytesToEmit) {}
-
-bool PTXMCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
- unsigned char Value) {return false;}
-
-
-void PTXMCAsmStreamer::EmitFileDirective(StringRef Filename) {
- assert(MAI.hasSingleParameterDotFile());
- OS << "\t.file\t";
- PrintQuotedString(Filename, OS);
- EmitEOL();
-}
-
-// FIXME: should we inherit from MCAsmStreamer?
-bool PTXMCAsmStreamer::EmitDwarfFileDirective(unsigned FileNo,
- StringRef Directory,
- StringRef Filename) {
- if (!Directory.empty()) {
- if (sys::path::is_absolute(Filename))
- return EmitDwarfFileDirective(FileNo, "", Filename);
- SmallString<128> FullPathName = Directory;
- sys::path::append(FullPathName, Filename);
- return EmitDwarfFileDirective(FileNo, "", FullPathName);
- }
-
- OS << "\t.file\t" << FileNo << ' ';
- PrintQuotedString(Filename, OS);
- EmitEOL();
- return this->MCStreamer::EmitDwarfFileDirective(FileNo, Directory, Filename);
-}
-
-void PTXMCAsmStreamer::AddEncodingComment(const MCInst &Inst) {}
-
-void PTXMCAsmStreamer::EmitInstruction(const MCInst &Inst) {
- assert(getCurrentSection() && "Cannot emit contents before setting section!");
-
- // Show the encoding in a comment if we have a code emitter.
- if (Emitter)
- AddEncodingComment(Inst);
-
- // Show the MCInst if enabled.
- if (ShowInst) {
- Inst.dump_pretty(GetCommentOS(), &MAI, InstPrinter.get(), "\n ");
- GetCommentOS() << "\n";
- }
-
- // If we have an AsmPrinter, use that to print, otherwise print the MCInst.
- if (InstPrinter)
- InstPrinter->printInst(&Inst, OS, "");
- else
- Inst.print(OS, &MAI);
- EmitEOL();
-}
-
-/// EmitRawText - If this file is backed by an assembly streamer, this dumps
-/// the specified string in the output .s file. This capability is
-/// indicated by the hasRawTextSupport() predicate.
-void PTXMCAsmStreamer::EmitRawText(StringRef String) {
- if (!String.empty() && String.back() == '\n')
- String = String.substr(0, String.size()-1);
- OS << String;
- EmitEOL();
-}
-
-void PTXMCAsmStreamer::FinishImpl() {}
-
-namespace llvm {
- MCStreamer *createPTXAsmStreamer(MCContext &Context,
- formatted_raw_ostream &OS,
- bool isVerboseAsm, bool useLoc, bool useCFI,
- bool useDwarfDirectory,
- MCInstPrinter *IP,
- MCCodeEmitter *CE, MCAsmBackend *MAB,
- bool ShowInst) {
- return new PTXMCAsmStreamer(Context, OS, isVerboseAsm, useLoc,
- IP, CE, ShowInst);
- }
-}
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