[llvm] r246571 - Remove OutputBuffer.
Benjamin Kramer via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 1 11:25:34 PDT 2015
Author: d0k
Date: Tue Sep 1 13:25:34 2015
New Revision: 246571
URL: http://llvm.org/viewvc/llvm-project?rev=246571&view=rev
Log:
Remove OutputBuffer.
This was last used by the pre-MC object emitter and has been dead for
quite a while. We have better ways to emit endian-dependent stuff now.
Removed:
llvm/trunk/include/llvm/Support/OutputBuffer.h
Removed: llvm/trunk/include/llvm/Support/OutputBuffer.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/OutputBuffer.h?rev=246570&view=auto
==============================================================================
--- llvm/trunk/include/llvm/Support/OutputBuffer.h (original)
+++ llvm/trunk/include/llvm/Support/OutputBuffer.h (removed)
@@ -1,166 +0,0 @@
-//=== OutputBuffer.h - Output Buffer ----------------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Methods to output values to a data buffer.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_SUPPORT_OUTPUTBUFFER_H
-#define LLVM_SUPPORT_OUTPUTBUFFER_H
-
-#include <cassert>
-#include <string>
-#include <vector>
-
-namespace llvm {
-
- class OutputBuffer {
- /// Output buffer.
- std::vector<unsigned char> &Output;
-
- /// is64Bit/isLittleEndian - This information is inferred from the target
- /// machine directly, indicating what header values and flags to set.
- bool is64Bit, isLittleEndian;
- public:
- OutputBuffer(std::vector<unsigned char> &Out,
- bool is64bit, bool le)
- : Output(Out), is64Bit(is64bit), isLittleEndian(le) {}
-
- // align - Emit padding into the file until the current output position is
- // aligned to the specified power of two boundary.
- void align(unsigned Boundary) {
- assert(Boundary && (Boundary & (Boundary - 1)) == 0 &&
- "Must align to 2^k boundary");
- size_t Size = Output.size();
-
- if (Size & (Boundary - 1)) {
- // Add padding to get alignment to the correct place.
- size_t Pad = Boundary - (Size & (Boundary - 1));
- Output.resize(Size + Pad);
- }
- }
-
- //===------------------------------------------------------------------===//
- // Out Functions - Output the specified value to the data buffer.
-
- void outbyte(unsigned char X) {
- Output.push_back(X);
- }
- void outhalf(unsigned short X) {
- if (isLittleEndian) {
- Output.push_back(X & 255);
- Output.push_back(X >> 8);
- } else {
- Output.push_back(X >> 8);
- Output.push_back(X & 255);
- }
- }
- void outword(unsigned X) {
- if (isLittleEndian) {
- Output.push_back((X >> 0) & 255);
- Output.push_back((X >> 8) & 255);
- Output.push_back((X >> 16) & 255);
- Output.push_back((X >> 24) & 255);
- } else {
- Output.push_back((X >> 24) & 255);
- Output.push_back((X >> 16) & 255);
- Output.push_back((X >> 8) & 255);
- Output.push_back((X >> 0) & 255);
- }
- }
- void outxword(uint64_t X) {
- if (isLittleEndian) {
- Output.push_back(unsigned(X >> 0) & 255);
- Output.push_back(unsigned(X >> 8) & 255);
- Output.push_back(unsigned(X >> 16) & 255);
- Output.push_back(unsigned(X >> 24) & 255);
- Output.push_back(unsigned(X >> 32) & 255);
- Output.push_back(unsigned(X >> 40) & 255);
- Output.push_back(unsigned(X >> 48) & 255);
- Output.push_back(unsigned(X >> 56) & 255);
- } else {
- Output.push_back(unsigned(X >> 56) & 255);
- Output.push_back(unsigned(X >> 48) & 255);
- Output.push_back(unsigned(X >> 40) & 255);
- Output.push_back(unsigned(X >> 32) & 255);
- Output.push_back(unsigned(X >> 24) & 255);
- Output.push_back(unsigned(X >> 16) & 255);
- Output.push_back(unsigned(X >> 8) & 255);
- Output.push_back(unsigned(X >> 0) & 255);
- }
- }
- void outaddr32(unsigned X) {
- outword(X);
- }
- void outaddr64(uint64_t X) {
- outxword(X);
- }
- void outaddr(uint64_t X) {
- if (!is64Bit)
- outword((unsigned)X);
- else
- outxword(X);
- }
- void outstring(const std::string &S, unsigned Length) {
- unsigned len_to_copy = static_cast<unsigned>(S.length()) < Length
- ? static_cast<unsigned>(S.length()) : Length;
- unsigned len_to_fill = static_cast<unsigned>(S.length()) < Length
- ? Length - static_cast<unsigned>(S.length()) : 0;
-
- for (unsigned i = 0; i < len_to_copy; ++i)
- outbyte(S[i]);
-
- for (unsigned i = 0; i < len_to_fill; ++i)
- outbyte(0);
- }
-
- //===------------------------------------------------------------------===//
- // Fix Functions - Replace an existing entry at an offset.
-
- void fixhalf(unsigned short X, unsigned Offset) {
- unsigned char *P = &Output[Offset];
- P[0] = (X >> (isLittleEndian ? 0 : 8)) & 255;
- P[1] = (X >> (isLittleEndian ? 8 : 0)) & 255;
- }
- void fixword(unsigned X, unsigned Offset) {
- unsigned char *P = &Output[Offset];
- P[0] = (X >> (isLittleEndian ? 0 : 24)) & 255;
- P[1] = (X >> (isLittleEndian ? 8 : 16)) & 255;
- P[2] = (X >> (isLittleEndian ? 16 : 8)) & 255;
- P[3] = (X >> (isLittleEndian ? 24 : 0)) & 255;
- }
- void fixxword(uint64_t X, unsigned Offset) {
- unsigned char *P = &Output[Offset];
- P[0] = (X >> (isLittleEndian ? 0 : 56)) & 255;
- P[1] = (X >> (isLittleEndian ? 8 : 48)) & 255;
- P[2] = (X >> (isLittleEndian ? 16 : 40)) & 255;
- P[3] = (X >> (isLittleEndian ? 24 : 32)) & 255;
- P[4] = (X >> (isLittleEndian ? 32 : 24)) & 255;
- P[5] = (X >> (isLittleEndian ? 40 : 16)) & 255;
- P[6] = (X >> (isLittleEndian ? 48 : 8)) & 255;
- P[7] = (X >> (isLittleEndian ? 56 : 0)) & 255;
- }
- void fixaddr(uint64_t X, unsigned Offset) {
- if (!is64Bit)
- fixword((unsigned)X, Offset);
- else
- fixxword(X, Offset);
- }
-
- unsigned char &operator[](unsigned Index) {
- return Output[Index];
- }
- const unsigned char &operator[](unsigned Index) const {
- return Output[Index];
- }
- };
-
-} // end llvm namespace
-
-#endif // LLVM_SUPPORT_OUTPUTBUFFER_H
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