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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 | d1a9bd85a0992e98f70fe88621509e2411a82ed2 (patch) | |
| tree | d0d601a3e516600aa8092274aa82b6ac51f0b7e7 /lib/Serialization | |
| parent | cba260be30a09c5b58513b2f3828ddb89a0c71d0 (diff) | |
| download | clang-d1a9bd85a0992e98f70fe88621509e2411a82ed2.tar.gz | |
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
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@355012 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Serialization')
| -rw-r--r-- | lib/Serialization/ASTReaderDecl.cpp | 1 | ||||
| -rw-r--r-- | lib/Serialization/ASTWriterDecl.cpp | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/lib/Serialization/ASTReaderDecl.cpp b/lib/Serialization/ASTReaderDecl.cpp index 6d02f4d112..fb56170d8a 100644 --- a/lib/Serialization/ASTReaderDecl.cpp +++ b/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/lib/Serialization/ASTWriterDecl.cpp b/lib/Serialization/ASTWriterDecl.cpp index ff0c56b9ed..6de1320be4 100644 --- a/lib/Serialization/ASTWriterDecl.cpp +++ b/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()) { |