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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2015-05-29 19:42:19 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2015-05-29 19:42:19 +0000 |
| commit | 3204b152b53e539304f9da2aff100876aeefa856 (patch) | |
| tree | 413a942366f5a46724c5658daf847ee3493e9f5e /llvm/lib/Transforms/Utils/PromoteMemoryToRegister.cpp | |
| parent | 36cbc0901f7a8ac02511143f1b5e4b6478221239 (diff) | |
| download | bcm5719-llvm-3204b152b53e539304f9da2aff100876aeefa856.tar.gz bcm5719-llvm-3204b152b53e539304f9da2aff100876aeefa856.zip | |
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.
llvm-svn: 238601
Diffstat (limited to 'llvm/lib/Transforms/Utils/PromoteMemoryToRegister.cpp')
0 files changed, 0 insertions, 0 deletions
