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authorJohn McCall <rjmccall@apple.com>2012-10-17 04:53:31 +0000
committerJohn McCall <rjmccall@apple.com>2012-10-17 04:53:31 +0000
commit0d54a17b52bfb5cd20ac39e8d9e5b0533f4aa08c (patch)
tree294032f34e34e9e41f292efdc74eac565b80e282 /clang/lib/Serialization/ASTReaderDecl.cpp
parentef19dbb62031b20798badebc9d11ae0fa369a3c0 (diff)
downloadbcm5719-llvm-0d54a17b52bfb5cd20ac39e8d9e5b0533f4aa08c.tar.gz
bcm5719-llvm-0d54a17b52bfb5cd20ac39e8d9e5b0533f4aa08c.zip
Set a special flag in class metadata when an Objective-C class
has ivars that require destruction, but none that require anything except zero-initialization. This is common in ARC and (when true throughout a class hierarchy) permits the elimination of an unnecessary message-send during allocation. llvm-svn: 166088
Diffstat (limited to 'clang/lib/Serialization/ASTReaderDecl.cpp')
-rw-r--r--clang/lib/Serialization/ASTReaderDecl.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp
index d85cb4eca93..17509c85278 100644
--- a/clang/lib/Serialization/ASTReaderDecl.cpp
+++ b/clang/lib/Serialization/ASTReaderDecl.cpp
@@ -855,6 +855,8 @@ void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
D->setSuperClass(ReadDeclAs<ObjCInterfaceDecl>(Record, Idx));
D->setIvarLBraceLoc(ReadSourceLocation(Record, Idx));
D->setIvarRBraceLoc(ReadSourceLocation(Record, Idx));
+ D->setHasNonZeroConstructors(Record[Idx++]);
+ D->setHasDestructors(Record[Idx++]);
llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
= Reader.ReadCXXCtorInitializers(F, Record, Idx);
}
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