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Tweak libclang's heuristics for building precompiled preambles and 

caching global code-completion results. In particular, don't perform
either operation the first time we parse, but do both after the first
reparse. 

llvm-svn: 119285
This commit is contained in:
Douglas Gregor 2010-11-15 23:00:34 +00:00
parent 18fb1665bf
commit c65929299d
2 changed files with 8 additions and 8 deletions
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11
clang/lib/Frontend/ASTUnit.cpp
View File

@ -326,7 +326,6 @@ void ASTUnit::CacheCodeCompletionResults() {
// Make a note of the state when we performed this caching.
NumTopLevelDeclsAtLastCompletionCache = top_level_size();
CacheCodeCompletionCoolDown = 15;
}
void ASTUnit::ClearCachedCompletionResults() {
@ -824,12 +823,6 @@ bool ASTUnit::Parse(llvm::MemoryBuffer *OverrideMainBuffer) {
}
Invocation.reset(Clang.takeInvocation());
// If we were asked to cache code-completion results and don't have any
// results yet, do so now.
if (ShouldCacheCodeCompletionResults && CachedCompletionResults.empty())
CacheCodeCompletionResults();
return false;
error:
@ -1350,7 +1343,7 @@ bool ASTUnit::LoadFromCompilerInvocation(bool PrecompilePreamble) {
llvm::MemoryBuffer *OverrideMainBuffer = 0;
if (PrecompilePreamble) {
PreambleRebuildCounter = 1;
PreambleRebuildCounter = 2;
OverrideMainBuffer
= getMainBufferWithPrecompiledPreamble(*Invocation);
}
@ -1377,6 +1370,7 @@ ASTUnit *ASTUnit::LoadFromCompilerInvocation(CompilerInvocation *CI,
AST->CaptureDiagnostics = CaptureDiagnostics;
AST->CompleteTranslationUnit = CompleteTranslationUnit;
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
AST->CacheCodeCompletionCoolDown = 1;
AST->Invocation.reset(CI);
return AST->LoadFromCompilerInvocation(PrecompilePreamble)? 0 : AST.take();
@ -1481,6 +1475,7 @@ ASTUnit *ASTUnit::LoadFromCommandLine(const char **ArgBegin,
AST->CaptureDiagnostics = CaptureDiagnostics;
AST->CompleteTranslationUnit = CompleteTranslationUnit;
AST->ShouldCacheCodeCompletionResults = CacheCodeCompletionResults;
AST->CacheCodeCompletionCoolDown = 1;
AST->NumStoredDiagnosticsFromDriver = StoredDiagnostics.size();
AST->NumStoredDiagnosticsInPreamble = StoredDiagnostics.size();
AST->StoredDiagnostics.swap(StoredDiagnostics);

5
clang/tools/c-index-test/c-index-test.c
View File

@ -1040,6 +1040,11 @@ int perform_code_completion(int argc, const char **argv, int timing_only) {
fprintf(stderr, "Unable to load translation unit!\n");
return 1;
}
if (clang_reparseTranslationUnit(TU, 0, 0, clang_defaultReparseOptions(TU))) {
fprintf(stderr, "Unable to reparse translation init!\n");
return 1;
}
for (I = 0; I != Repeats; ++I) {
results = clang_codeCompleteAt(TU, filename, line, column,