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Diffstat (limited to 'include/llvm/CodeGen/AsmStream.h')
| -rw-r--r-- | include/llvm/CodeGen/AsmStream.h | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/include/llvm/CodeGen/AsmStream.h b/include/llvm/CodeGen/AsmStream.h deleted file mode 100644 index 6b17c73..0000000 --- a/include/llvm/CodeGen/AsmStream.h +++ /dev/null @@ -1,179 +0,0 @@ -//===-- llvm/CodeGen/AsmStream.h - AsmStream Framework --------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file was developed by the LLVM research group and is distributed under -// the University of Illinois Open Source License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file contains raw_ostream implementations for ASM printers to -// do things like pretty-print comments. -// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_CODEGEN_ASMSTREAM_H -#define LLVM_CODEGEN_ASMSTREAM_H - -#include "llvm/Target/TargetAsmInfo.h" -#include "llvm/Support/raw_ostream.h" - -namespace llvm -{ - /// raw_asm_fd_ostream - Formatted raw_fd_ostream to handle - /// asm-specific constructs - /// - class raw_asm_fd_ostream : public raw_fd_ostream { - private: - bool formatted; - int column; - - protected: - void ComputeColumn(void) { - if (formatted) { - // Keep track of the current column by scanning the string for - // special characters - - // Find the last newline. This is our column start. If there - // is no newline, start with the current column. - char *nlpos = NULL; - for (char *pos = CurBufPtr(), *epos = StartBufPtr(); pos > epos; --pos) { - if (*(pos-1) == '\n') { - nlpos = pos-1; - // The newline will be counted, setting this to zero. We - // need to do it this way in case nlpos is CurBufPtr(). - column = -1; - break; - } - } - - if (nlpos == NULL) { - nlpos = StartBufPtr(); - } - - // Walk through looking for tabs and advance column as appropriate - for (char *pos = nlpos, *epos = CurBufPtr(); pos != epos; ++pos) { - ++column; - if (*pos == '\t') { - // Advance to next tab stop (every eight characters) - column += ((8 - (column & 0x7)) & 0x7); - assert(!(column & 0x3) && "Column out of alignment"); - } - } - } - } - - virtual void AboutToFlush(void) { - ComputeColumn(); - } - - public: - /// raw_asm_fd_ostream - Open the specified file for writing. If - /// an error occurs, information about the error is put into - /// ErrorInfo, and the stream should be immediately destroyed; the - /// string will be empty if no error occurred. - /// - /// \param Filename - The file to open. If this is "-" then the - /// stream will use stdout instead. - /// \param Binary - The file should be opened in binary mode on - /// platforms that support this distinction. - raw_asm_fd_ostream(const char *Filename, bool Binary, std::string &ErrorInfo) - : raw_fd_ostream(Filename, Binary, ErrorInfo), - formatted(!Binary), column(0) {} - - /// raw_asm_fd_ostream ctor - FD is the file descriptor that this - /// writes to. If ShouldClose is true, this closes the file when - /// the stream is destroyed. - raw_asm_fd_ostream(int fd, bool shouldClose, - bool unbuffered=false) - : raw_fd_ostream(fd, shouldClose, unbuffered), - formatted(true), column(0) { - if (unbuffered) { - assert(0 && "asm stream must be buffered"); - // Force buffering - SetBufferSize(); - } - } - - - /// SetColumn - Align the output to some column number - /// - void setColumn(int newcol, int minpad = 0) { - if (formatted) { - flush(); - - // Output spaces until we reach the desired column - int num = newcol - column; - if (num <= 0) { - num = minpad; - } - - // TODO: Write a whole string at a time - while (num-- > 0) { - write(' '); - } - } - }; - }; - - /// Column - An I/O manipulator to advance the output to a certain column - /// - class Column { - private: - int column; - - public: - explicit Column(int c) - : column(c) {} - - raw_asm_fd_ostream &operator()(raw_asm_fd_ostream &out) const { - // Make at least one space before the comment - out.setColumn(column, 1); - return(out); - } - }; - - inline raw_asm_fd_ostream &operator<<(raw_asm_fd_ostream &out, const Column &column) - { - return(column(out)); - } - - /// Comment - An I/O manipulator to output an end-of-line comment - /// - class Comment - : public Column { - private: - static const int CommentColumn = 60; - std::string text; - const TargetAsmInfo &TAI; - - public: - Comment(const std::string &comment, - const TargetAsmInfo &tai) - : Column(CommentColumn), text(comment), TAI(tai) {} - - raw_asm_fd_ostream &operator()(raw_asm_fd_ostream &out) const { - Column::operator()(out); - out << TAI.getCommentString() << " " << text; - return(out); - } - }; - - inline raw_asm_fd_ostream &operator<<(raw_asm_fd_ostream &out, - const Comment &comment) - { - return(comment(out)); - } - - /// Asm stream equivalent for std streams - /// - - /// WARNING: Do NOT use these streams in the constructors of global - /// objects. There is no mechanism to ensure they are initialized - /// before other global objects. - /// - extern raw_asm_fd_ostream asmouts; - extern raw_asm_fd_ostream asmerrs; -} - -#endif |