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61b1851a20
Also refactor the existing OProfile profiling code to reuse the same interfaces with the VTune profiling code. In addition, unit tests for the profiling interfaces were added. This patch was prepared by Andrew Kaylor and Daniel Malea, and reviewed in the llvm-commits list by Jim Grosbach git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152620 91177308-0d34-0410-b5e6-96231b3b80d8
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
//===-- JIT.h - Abstract Execution Engine Interface -------------*- C++ -*-===//
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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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// Common functionality for JITEventListener implementations
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//
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//===----------------------------------------------------------------------===//
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#ifndef EVENT_LISTENER_COMMON_H
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#define EVENT_LISTENER_COMMON_H
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#include "llvm/Metadata.h"
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#include "llvm/Analysis/DebugInfo.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/ValueHandle.h"
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#include "llvm/Support/Path.h"
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namespace llvm {
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namespace jitprofiling {
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class FilenameCache {
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// Holds the filename of each Scope, so that we can pass a null-terminated
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// string into oprofile. Use an AssertingVH rather than a ValueMap because we
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// shouldn't be modifying any MDNodes while this map is alive.
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DenseMap<AssertingVH<MDNode>, std::string> Filenames;
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DenseMap<AssertingVH<MDNode>, std::string> Paths;
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public:
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const char *getFilename(MDNode *Scope) {
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std::string &Filename = Filenames[Scope];
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if (Filename.empty()) {
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DIScope DIScope(Scope);
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Filename = DIScope.getFilename();
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}
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return Filename.c_str();
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}
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const char *getFullPath(MDNode *Scope) {
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std::string &P = Paths[Scope];
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if (P.empty()) {
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DIScope DIScope(Scope);
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StringRef DirName = DIScope.getDirectory();
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StringRef FileName = DIScope.getFilename();
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SmallString<256> FullPath;
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if (DirName != "." && DirName != "") {
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FullPath = DirName;
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}
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if (FileName != "") {
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sys::path::append(FullPath, FileName);
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}
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P = FullPath.str();
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}
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return P.c_str();
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}
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};
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} // namespace jitprofiling
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} // namespace llvm
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#endif //EVENT_LISTENER_COMMON_H
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