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64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
//===-- driver/cl_options_instrumentation.cpp ------------------*- C++ -*-===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Defines the LDC command line options related to instrumentation, such as PGO
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// -finstrument-functions, etc.
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// Options for the instrumentation for the sanitizers is not part of this.
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//
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//===----------------------------------------------------------------------===//
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#include "driver/cl_options_instrumentation.h"
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#include "globals.h"
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namespace opts {
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#if LDC_WITH_PGO
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cl::opt<std::string>
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genfileInstrProf("fprofile-instr-generate", cl::value_desc("filename"),
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cl::desc("Generate instrumented code to collect a runtime "
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"profile into default.profraw (overriden by "
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"'=<filename>' or LLVM_PROFILE_FILE env var)"),
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cl::ZeroOrMore, cl::ValueOptional);
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cl::opt<std::string> usefileInstrProf(
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"fprofile-instr-use", cl::ZeroOrMore, cl::value_desc("filename"),
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cl::desc("Use instrumentation data for profile-guided optimization"),
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cl::ValueRequired);
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#endif
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cl::opt<bool>
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instrumentFunctions("finstrument-functions", cl::ZeroOrMore,
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cl::desc("Instrument function entry and exit with "
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"GCC-compatible profiling calls"));
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void initializeInstrumentationOptionsFromCmdline() {
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#if LDC_WITH_PGO
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if (genfileInstrProf.getNumOccurrences() > 0) {
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global.params.genInstrProf = true;
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if (genfileInstrProf.empty()) {
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#if LDC_LLVM_VER >= 309
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// profile-rt provides a default filename by itself
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global.params.datafileInstrProf = nullptr;
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#else
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global.params.datafileInstrProf = "default.profraw";
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#endif
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} else {
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initFromPathString(global.params.datafileInstrProf, genfileInstrProf);
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}
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} else {
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global.params.genInstrProf = false;
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// If we don't have to generate instrumentation, we could be given a
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// profdata file:
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initFromPathString(global.params.datafileInstrProf, usefileInstrProf);
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}
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#endif
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}
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} // namespace opts
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