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works only on intrinsics
Differential Revision: https://reviews.llvm.org/D55802
Reviewers: rjmccall
llvm-svn: 349535
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of a non-trivial C struct, copy the preceding trivial fields that
haven't been copied.
This commit fixes a bug where the instructions used to copy the
preceding trivial fields were emitted inside the loop body.
rdar://problem/44185064
llvm-svn: 343556
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Clang generates copy and dispose helper functions for each block literal
on the stack. Often these functions are equivalent for different blocks.
This commit makes changes to merge equivalent copy and dispose helper
functions and reduce code size.
To enable merging equivalent copy/dispose functions, the captured object
infomation is encoded into the helper function name. This allows IRGen
to check whether an equivalent helper function has already been emitted
and reuse the function instead of generating a new helper function
whenever a block is defined. In addition, the helper functions are
marked as linkonce_odr to enable merging helper functions that have the
same name across translation units and marked as unnamed_addr to enable
the linker's deduplication pass to merge functions that have different
names but the same content.
rdar://problem/42640608
Differential Revision: https://reviews.llvm.org/D50152
llvm-svn: 339438
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volatile array field is copied.
The crash occurs because method 'visitArray' passes a null FieldDecl to
method 'visit' and some of the methods called downstream expect a
non-null FieldDecl to be passed.
This reapplies r330151 with a fix to the test case.
rdar://problem/33599681
llvm-svn: 330155
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This reverts commit r330151, which caused bots to fail.
llvm-svn: 330153
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volatile array field is copied.
The crash occurs because method 'visitArray' passes a null FieldDecl to
method 'visit' and some of the methods called downstream expect a
non-null FieldDecl to be passed.
rdar://problem/33599681
llvm-svn: 330151
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setting the NonTrivialToPrimitive* flags of a record.
Union fields that have non-trivial Objective-C ownership qualifications
are normally not legal, but if the union is declared in a system header,
the fields are annotated with attribute "unavailable".
rdar://problem/38431072
llvm-svn: 327464
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rdar://problem/38421774
llvm-svn: 327434
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ARC mode.
Declaring __strong pointer fields in structs was not allowed in
Objective-C ARC until now because that would make the struct non-trivial
to default-initialize, copy/move, and destroy, which is not something C
was designed to do. This patch lifts that restriction.
Special functions for non-trivial C structs are synthesized that are
needed to default-initialize, copy/move, and destroy the structs and
manage the ownership of the objects the __strong pointer fields point
to. Non-trivial structs passed to functions are destructed in the callee
function.
rdar://problem/33599681
Differential Revision: https://reviews.llvm.org/D41228
llvm-svn: 326307
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