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7acd886ecf
The idea of this patch is to turn llvm/Support/system_error.h into a transitional header that just brings in the erorr_code api to the llvm namespace. I will remove it shortly afterwards. The cases where the general idea needed some tweaking: * std::errc is a namespace in msvc, so we cannot use "using std::errc". I could add an #ifdef, but there were not that many uses, so I just added std:: to them in this patch. * Template specialization had to be moved to the std namespace in this patch set already. * The msvc implementation of default_error_condition doesn't seem to provide the same transformations as we need. Not too surprising since the standard doesn't actually say what "equivalent" means. I fixed the problem by keeping our old mapping and using it at error_code construction time. Despite these shortcomings I think this is still a good thing. Some reasons: * The different implementations of system_error might improve over time. * It removes 925 lines of code from llvm already. * It removes 6313 bytes from the text segment of the clang binary when it is built with gcc and 2816 bytes when building with clang and libstdc++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210687 91177308-0d34-0410-b5e6-96231b3b80d8
67 lines
2.3 KiB
C++
67 lines
2.3 KiB
C++
//=-- InstrProf.cpp - Instrumented profiling format support -----------------=//
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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 contains support for clang's instrumentation based PGO and
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// coverage.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ProfileData/InstrProf.h"
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#include "llvm/Support/ErrorHandling.h"
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using namespace llvm;
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namespace {
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class InstrProfErrorCategoryType : public error_category {
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const char *name() const LLVM_NOEXCEPT override { return "llvm.instrprof"; }
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std::string message(int IE) const override {
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instrprof_error E = static_cast<instrprof_error>(IE);
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switch (E) {
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case instrprof_error::success:
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return "Success";
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case instrprof_error::eof:
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return "End of File";
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case instrprof_error::bad_magic:
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return "Invalid file format (bad magic)";
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case instrprof_error::bad_header:
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return "Invalid header";
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case instrprof_error::unsupported_version:
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return "Unsupported format version";
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case instrprof_error::unsupported_hash_type:
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return "Unsupported hash function";
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case instrprof_error::too_large:
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return "Too much profile data";
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case instrprof_error::truncated:
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return "Truncated profile data";
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case instrprof_error::malformed:
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return "Malformed profile data";
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case instrprof_error::unknown_function:
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return "No profile data available for function";
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case instrprof_error::hash_mismatch:
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return "Function hash mismatch";
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case instrprof_error::count_mismatch:
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return "Function count mismatch";
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case instrprof_error::counter_overflow:
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return "Counter overflow";
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}
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llvm_unreachable("A value of instrprof_error has no message.");
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}
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error_condition default_error_condition(int EV) const LLVM_NOEXCEPT override {
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if (static_cast<instrprof_error>(EV) == instrprof_error::success)
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return error_condition();
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return std::errc::invalid_argument;
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}
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};
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}
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const error_category &llvm::instrprof_category() {
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static InstrProfErrorCategoryType C;
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return C;
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}
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