aboutsummaryrefslogtreecommitdiff
path: root/lib/Frontend/ASTUnit.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Frontend/ASTUnit.cpp')
-rw-r--r--lib/Frontend/ASTUnit.cpp130
1 files changed, 64 insertions, 66 deletions
diff --git a/lib/Frontend/ASTUnit.cpp b/lib/Frontend/ASTUnit.cpp
index 33abb07331..a0c9b4b40c 100644
--- a/lib/Frontend/ASTUnit.cpp
+++ b/lib/Frontend/ASTUnit.cpp
@@ -44,6 +44,46 @@
#include <sys/stat.h>
using namespace clang;
+using llvm::TimeRecord;
+
+namespace {
+ class SimpleTimer {
+ bool WantTiming;
+ TimeRecord Start;
+ std::string Output;
+
+ public:
+ explicit SimpleTimer(bool WantTiming) : WantTiming(true) {
+ Start = TimeRecord::getCurrentTime();
+ }
+
+ void setOutput(llvm::StringRef Output) {
+ if (WantTiming)
+ this->Output = Output;
+ }
+
+ void setOutput(llvm::Twine Output) {
+ if (WantTiming)
+ this->Output = Output.str();
+ }
+
+ void setOutput(const char *Output) {
+ if (WantTiming)
+ this->Output = Output;
+ }
+
+ ~SimpleTimer() {
+ if (WantTiming) {
+ TimeRecord Elapsed = TimeRecord::getCurrentTime();
+ Elapsed -= Start;
+ llvm::errs() << Output << ':';
+ Elapsed.print(Elapsed, llvm::errs());
+ llvm::errs() << '\n';
+ }
+ }
+ };
+}
+
/// \brief After failing to build a precompiled preamble (due to
/// errors in the source that occurs in the preamble), the number of
/// reparses during which we'll skip even trying to precompile the
@@ -52,7 +92,8 @@ const unsigned DefaultPreambleRebuildInterval = 5;
ASTUnit::ASTUnit(bool _MainFileIsAST)
: CaptureDiagnostics(false), MainFileIsAST(_MainFileIsAST),
- CompleteTranslationUnit(true), NumStoredDiagnosticsFromDriver(0),
+ CompleteTranslationUnit(true), WantTiming(getenv("LIBCLANG_TIMING")),
+ NumStoredDiagnosticsFromDriver(0),
ConcurrencyCheckValue(CheckUnlocked),
PreambleRebuildCounter(0), SavedMainFileBuffer(0), PreambleBuffer(0),
ShouldCacheCodeCompletionResults(false),
@@ -84,13 +125,7 @@ ASTUnit::~ASTUnit() {
delete SavedMainFileBuffer;
delete PreambleBuffer;
- ClearCachedCompletionResults();
-
- if (TimerGroup)
- TimerGroup->printAll(llvm::errs());
-
- for (unsigned I = 0, N = Timers.size(); I != N; ++I)
- delete Timers[I];
+ ClearCachedCompletionResults();
}
void ASTUnit::CleanTemporaryFiles() {
@@ -171,13 +206,9 @@ void ASTUnit::CacheCodeCompletionResults() {
if (!TheSema)
return;
- llvm::Timer *CachingTimer = 0;
- if (TimerGroup.get()) {
- CachingTimer = new llvm::Timer("Cache global code completions",
- *TimerGroup);
- CachingTimer->startTimer();
- Timers.push_back(CachingTimer);
- }
+ SimpleTimer Timer(WantTiming);
+ if (WantTiming)
+ Timer.setOutput( "Cache global code completions for " + getMainFileName());
// Clear out the previous results.
ClearCachedCompletionResults();
@@ -303,9 +334,6 @@ void ASTUnit::CacheCodeCompletionResults() {
Results[I].Destroy();
}
- if (CachingTimer)
- CachingTimer->stopTimer();
-
// Make a note of the state when we performed this caching.
NumTopLevelDeclsAtLastCompletionCache = top_level_size();
CacheCodeCompletionCoolDown = 15;
@@ -1118,12 +1146,9 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble(
}
// We did not previously compute a preamble, or it can't be reused anyway.
- llvm::Timer *PreambleTimer = 0;
- if (TimerGroup.get()) {
- PreambleTimer = new llvm::Timer("Precompiling preamble", *TimerGroup);
- PreambleTimer->startTimer();
- Timers.push_back(PreambleTimer);
- }
+ SimpleTimer PreambleTimer(WantTiming);
+ if (WantTiming)
+ PreambleTimer.setOutput("Precompiling preamble");
// Create a new buffer that stores the preamble. The buffer also contains
// extra space for the original contents of the file (which will be present
@@ -1183,8 +1208,6 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble(
Preamble.clear();
if (CreatedPreambleBuffer)
delete NewPreamble.first;
- if (PreambleTimer)
- PreambleTimer->stopTimer();
PreambleRebuildCounter = DefaultPreambleRebuildInterval;
PreprocessorOpts.eraseRemappedFile(
PreprocessorOpts.remapped_file_buffer_end() - 1);
@@ -1228,8 +1251,6 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble(
Preamble.clear();
if (CreatedPreambleBuffer)
delete NewPreamble.first;
- if (PreambleTimer)
- PreambleTimer->stopTimer();
PreambleRebuildCounter = DefaultPreambleRebuildInterval;
PreprocessorOpts.eraseRemappedFile(
PreprocessorOpts.remapped_file_buffer_end() - 1);
@@ -1248,8 +1269,6 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble(
Preamble.clear();
if (CreatedPreambleBuffer)
delete NewPreamble.first;
- if (PreambleTimer)
- PreambleTimer->stopTimer();
TopLevelDeclsInPreamble.clear();
PreambleRebuildCounter = DefaultPreambleRebuildInterval;
PreprocessorOpts.eraseRemappedFile(
@@ -1280,9 +1299,6 @@ llvm::MemoryBuffer *ASTUnit::getMainBufferWithPrecompiledPreamble(
= std::make_pair(F->second->getSize(), File->getModificationTime());
}
- if (PreambleTimer)
- PreambleTimer->stopTimer();
-
PreambleRebuildCounter = 1;
PreprocessorOpts.eraseRemappedFile(
PreprocessorOpts.remapped_file_buffer_end() - 1);
@@ -1314,6 +1330,10 @@ unsigned ASTUnit::getMaxPCHLevel() const {
return 0;
}
+llvm::StringRef ASTUnit::getMainFileName() const {
+ return Invocation->getFrontendOpts().Inputs[0].second;
+}
+
bool ASTUnit::LoadFromCompilerInvocation(bool PrecompilePreamble) {
if (!Invocation)
return true;
@@ -1322,11 +1342,6 @@ bool ASTUnit::LoadFromCompilerInvocation(bool PrecompilePreamble) {
Invocation->getPreprocessorOpts().RetainRemappedFileBuffers = true;
Invocation->getFrontendOpts().DisableFree = false;
- if (getenv("LIBCLANG_TIMING"))
- TimerGroup.reset(
- new llvm::TimerGroup(Invocation->getFrontendOpts().Inputs[0].second));
-
-
llvm::MemoryBuffer *OverrideMainBuffer = 0;
if (PrecompilePreamble) {
PreambleRebuildCounter = 1;
@@ -1334,18 +1349,11 @@ bool ASTUnit::LoadFromCompilerInvocation(bool PrecompilePreamble) {
= getMainBufferWithPrecompiledPreamble(*Invocation);
}
- llvm::Timer *ParsingTimer = 0;
- if (TimerGroup.get()) {
- ParsingTimer = new llvm::Timer("Initial parse", *TimerGroup);
- ParsingTimer->startTimer();
- Timers.push_back(ParsingTimer);
- }
+ SimpleTimer ParsingTimer(WantTiming);
+ if (WantTiming)
+ ParsingTimer.setOutput( "Parsing " + getMainFileName());
- bool Failed = Parse(OverrideMainBuffer);
- if (ParsingTimer)
- ParsingTimer->stopTimer();
-
- return Failed;
+ return Parse(OverrideMainBuffer);
}
ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI,
@@ -1487,13 +1495,10 @@ bool ASTUnit::Reparse(RemappedFile *RemappedFiles, unsigned NumRemappedFiles) {
if (!Invocation.get())
return true;
- llvm::Timer *ReparsingTimer = 0;
- if (TimerGroup.get()) {
- ReparsingTimer = new llvm::Timer("Reparse", *TimerGroup);
- ReparsingTimer->startTimer();
- Timers.push_back(ReparsingTimer);
- }
-
+ SimpleTimer ParsingTimer(WantTiming);
+ if (WantTiming)
+ ParsingTimer.setOutput( "Reparsing " + getMainFileName());
+
// Remap files.
PreprocessorOptions &PPOpts = Invocation->getPreprocessorOpts();
for (PreprocessorOptions::remapped_file_buffer_iterator
@@ -1522,8 +1527,6 @@ bool ASTUnit::Reparse(RemappedFile *RemappedFiles, unsigned NumRemappedFiles) {
// Parse the sources
bool Result = Parse(OverrideMainBuffer);
- if (ReparsingTimer)
- ReparsingTimer->stopTimer();
if (ShouldCacheCodeCompletionResults) {
if (CacheCodeCompletionCoolDown > 0)
@@ -1778,15 +1781,13 @@ void ASTUnit::CodeComplete(llvm::StringRef File, unsigned Line, unsigned Column,
if (!Invocation.get())
return;
- llvm::Timer *CompletionTimer = 0;
- if (TimerGroup.get()) {
+ SimpleTimer CompletionTimer(WantTiming);
+ if (WantTiming) {
llvm::SmallString<128> TimerName;
llvm::raw_svector_ostream TimerNameOut(TimerName);
TimerNameOut << "Code completion @ " << File << ":" << Line << ":"
<< Column;
- CompletionTimer = new llvm::Timer(TimerNameOut.str(), *TimerGroup);
- CompletionTimer->startTimer();
- Timers.push_back(CompletionTimer);
+ CompletionTimer.setOutput(TimerNameOut.str());
}
CompilerInvocation CCInvocation(*Invocation);
@@ -1914,9 +1915,6 @@ void ASTUnit::CodeComplete(llvm::StringRef File, unsigned Line, unsigned Column,
Act->EndSourceFile();
}
- if (CompletionTimer)
- CompletionTimer->stopTimer();
-
// Steal back our resources.
Clang.takeFileManager();
Clang.takeSourceManager();
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-01 11:18:27 +0000