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authorBenjamin Kramer <benny.kra@googlemail.com>2015-05-29 19:42:19 +0000
committerBenjamin Kramer <benny.kra@googlemail.com>2015-05-29 19:42:19 +0000
commitb7b56528f9b78d5ae89e023a0dd5c1fcc7215875 (patch)
treebcf68eeff81cd0c634e215f6261b53b8520930e2 /include/clang/Lex/Preprocessor.h
parente8bd67912a47e36f28144fced9aaa5f003d318a8 (diff)
Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types
If the type isn't trivially moveable emplace can skip a potentially expensive move. It also saves a couple of characters. Call sites were found with the ASTMatcher + some semi-automated cleanup. memberCallExpr( argumentCountIs(1), callee(methodDecl(hasName("push_back"))), on(hasType(recordDecl(has(namedDecl(hasName("emplace_back")))))), hasArgument(0, bindTemporaryExpr( hasType(recordDecl(hasNonTrivialDestructor())), has(constructExpr()))), unless(isInTemplateInstantiation())) No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@238601 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Lex/Preprocessor.h')
-rw-r--r--include/clang/Lex/Preprocessor.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/clang/Lex/Preprocessor.h b/include/clang/Lex/Preprocessor.h
index ea15dbdf21..e0e0919912 100644
--- a/include/clang/Lex/Preprocessor.h
+++ b/include/clang/Lex/Preprocessor.h
@@ -1617,9 +1617,9 @@ private:
void PushIncludeMacroStack() {
assert(CurLexerKind != CLK_CachingLexer && "cannot push a caching lexer");
- IncludeMacroStack.push_back(IncludeStackInfo(
+ IncludeMacroStack.emplace_back(
CurLexerKind, CurSubmodule, std::move(CurLexer), std::move(CurPTHLexer),
- CurPPLexer, std::move(CurTokenLexer), CurDirLookup));
+ CurPPLexer, std::move(CurTokenLexer), CurDirLookup);
CurPPLexer = nullptr;
}