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Replace the std::map in the init list checker with a DenseMap to reduce malloc thrashing. 

llvm-svn: 151254
This commit is contained in:
Benjamin Kramer 2012-02-23 14:48:40 +00:00
parent d53aa39f46
commit 6b441d62e9
1 changed files with 3 additions and 3 deletions
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6
clang/lib/Sema/SemaInit.cpp
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@ -173,7 +173,7 @@ class InitListChecker {
bool hadError;
bool VerifyOnly; // no diagnostics, no structure building
bool AllowBraceElision;
std::map<InitListExpr *, InitListExpr *> SyntacticToSemantic;
llvm::DenseMap<InitListExpr *, InitListExpr *> SyntacticToSemantic;
InitListExpr *FullyStructuredList;
void CheckImplicitInitList(const InitializedEntity &Entity,
@ -1632,7 +1632,7 @@ InitListChecker::CheckDesignatedInitializer(const InitializedEntity &Entity,
// Determine the structural initializer list that corresponds to the
// current subobject.
StructuredList = IsFirstDesignator? SyntacticToSemantic[IList]
StructuredList = IsFirstDesignator? SyntacticToSemantic.lookup(IList)
: getStructuredSubobjectInit(IList, Index, CurrentObjectType,
StructuredList, StructuredIndex,
SourceRange(D->getStartLocation(),
@ -2046,7 +2046,7 @@ InitListChecker::getStructuredSubobjectInit(InitListExpr *IList, unsigned Index,
return 0; // No structured list in verification-only mode.
Expr *ExistingInit = 0;
if (!StructuredList)
ExistingInit = SyntacticToSemantic[IList];
ExistingInit = SyntacticToSemantic.lookup(IList);
else if (StructuredIndex < StructuredList->getNumInits())
ExistingInit = StructuredList->getInit(StructuredIndex);