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| author | Akira Hatanaka <ahatanaka@apple.com> | 2019-02-27 18:17:16 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@apple.com> | 2019-02-27 18:17:16 +0000 |
| commit | c5792aa90fa45a1842f190c146f19e2c71ea6fbd (patch) | |
| tree | 3b0e58ac909124579b2391ffd93e404edea8dc6e /clang/lib/Serialization | |
| parent | 69bec61998c702f790cf5c9f17a3a4a086bd5804 (diff) | |
| download | bcm5719-llvm-c5792aa90fa45a1842f190c146f19e2c71ea6fbd.tar.gz bcm5719-llvm-c5792aa90fa45a1842f190c146f19e2c71ea6fbd.zip | |
Avoid needlessly copying a block to the heap when a block literal
initializes a local auto variable or is assigned to a local auto
variable that is declared in the scope that introduced the block
literal.
rdar://problem/13289333
https://reviews.llvm.org/D58514
llvm-svn: 355012
Diffstat (limited to 'clang/lib/Serialization')
| -rw-r--r-- | clang/lib/Serialization/ASTReaderDecl.cpp | 1 | ||||
| -rw-r--r-- | clang/lib/Serialization/ASTWriterDecl.cpp | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp index 6d02f4d1121..fb56170d8ab 100644 --- a/clang/lib/Serialization/ASTReaderDecl.cpp +++ b/clang/lib/Serialization/ASTReaderDecl.cpp @@ -1479,6 +1479,7 @@ void ASTDeclReader::VisitBlockDecl(BlockDecl *BD) { BD->setBlockMissingReturnType(Record.readInt()); BD->setIsConversionFromLambda(Record.readInt()); BD->setDoesNotEscape(Record.readInt()); + BD->setCanAvoidCopyToHeap(Record.readInt()); bool capturesCXXThis = Record.readInt(); unsigned numCaptures = Record.readInt(); diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp index ff0c56b9ed4..6de1320be42 100644 --- a/clang/lib/Serialization/ASTWriterDecl.cpp +++ b/clang/lib/Serialization/ASTWriterDecl.cpp @@ -1110,6 +1110,7 @@ void ASTDeclWriter::VisitBlockDecl(BlockDecl *D) { Record.push_back(D->blockMissingReturnType()); Record.push_back(D->isConversionFromLambda()); Record.push_back(D->doesNotEscape()); + Record.push_back(D->canAvoidCopyToHeap()); Record.push_back(D->capturesCXXThis()); Record.push_back(D->getNumCaptures()); for (const auto &capture : D->captures()) { |
