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author | Akira Hatanaka <ahatanaka@apple.com> | 2019-02-27 18:17:16 +0000 |
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committer | Akira Hatanaka <ahatanaka@apple.com> | 2019-02-27 18:17:16 +0000 |
commit | c5792aa90fa45a1842f190c146f19e2c71ea6fbd (patch) | |
tree | 3b0e58ac909124579b2391ffd93e404edea8dc6e /clang/lib/AST/Decl.cpp | |
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/AST/Decl.cpp')
-rw-r--r-- | clang/lib/AST/Decl.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp index 4f49bd79878..78501f5e3a9 100644 --- a/clang/lib/AST/Decl.cpp +++ b/clang/lib/AST/Decl.cpp @@ -4265,6 +4265,7 @@ BlockDecl::BlockDecl(DeclContext *DC, SourceLocation CaretLoc) setBlockMissingReturnType(true); setIsConversionFromLambda(false); setDoesNotEscape(false); + setCanAvoidCopyToHeap(false); } void BlockDecl::setParams(ArrayRef<ParmVarDecl *> NewParamInfo) { |