f785676f2a
all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
//===- YAML.cpp - YAMLIO utilities for object files -----------------------===//
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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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//
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// This file defines utility classes for handling the YAML representation of
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// object files.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/YAML.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cctype>
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using namespace llvm;
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using namespace object::yaml;
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void yaml::ScalarTraits<object::yaml::BinaryRef>::output(
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const object::yaml::BinaryRef &Val, void *, llvm::raw_ostream &Out) {
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Val.writeAsHex(Out);
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}
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StringRef yaml::ScalarTraits<object::yaml::BinaryRef>::input(
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StringRef Scalar, void *, object::yaml::BinaryRef &Val) {
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if (Scalar.size() % 2 != 0)
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return "BinaryRef hex string must contain an even number of nybbles.";
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// TODO: Can we improve YAMLIO to permit a more accurate diagnostic here?
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// (e.g. a caret pointing to the offending character).
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for (unsigned I = 0, N = Scalar.size(); I != N; ++I)
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if (!isxdigit(Scalar[I]))
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return "BinaryRef hex string must contain only hex digits.";
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Val = object::yaml::BinaryRef(Scalar);
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return StringRef();
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}
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void BinaryRef::writeAsBinary(raw_ostream &OS) const {
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if (!DataIsHexString) {
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OS.write((const char *)Data.data(), Data.size());
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return;
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}
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for (unsigned I = 0, N = Data.size(); I != N; I += 2) {
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uint8_t Byte;
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StringRef((const char *)&Data[I], 2).getAsInteger(16, Byte);
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OS.write(Byte);
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}
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}
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void BinaryRef::writeAsHex(raw_ostream &OS) const {
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if (binary_size() == 0) {
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OS << "\"\"";
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return;
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}
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if (DataIsHexString) {
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OS.write((const char *)Data.data(), Data.size());
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return;
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}
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for (ArrayRef<uint8_t>::iterator I = Data.begin(), E = Data.end(); I != E;
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++I) {
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uint8_t Byte = *I;
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OS << hexdigit(Byte >> 4);
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OS << hexdigit(Byte & 0xf);
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}
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}
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