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Tries to avoid memory leaks previously caused by saving filename by
allocating memory in the preprocessor.
Fixes https://github.com/llvm/llvm-project/issues/132641
Fixes https://github.com/llvm/llvm-project/issues/107869
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Co-authored-by: Aaron Ballman <aaron@aaronballman.com>
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Fix the location of `diag::note_constexpr_uninitialized_base`, make it
same as current interpreter.
This PR does not print type name with namespacethat was used to improve
the current interpreter's type dump of base class type.
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Signed-off-by: yronglin <yronglin777@gmail.com>
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It seems for C++ lexer has some caching ability which doesn't expect
injecting "new" tokens in the middle of the cache. Technically #embed
tokens are not completely new since they have already been read from the
file and there was #embed annotation token in this place, so set
`reinject` flag for them to silence assertion.
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This patch makes remaining cases of #embed to emit int type since there
is an agreement to do that for C. C++ is being discussed, but in general
we don't want to produce different types for C and C++.
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Instead of playing "whack a mole" with places where #embed should be
expanded as comma-separated list, just inject each byte as a token back
into the stream, separated by commas.
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The test clang/test/Preprocessor/embed_weird.cpp creates a file directly
in the Inputs dir in the llvm-project repo instead of the temporary
directory. The llvm-project repo may be write protected e.g. in a
sandboxed environment.
This patch creates a separate temporary directory where the
null_byte.bin file is created along with the rest of copies of the other
embed-files needed for the testcase.
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This commit implements the entirety of the now-accepted [N3017
-Preprocessor
Embed](https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3017.htm) and
its sister C++ paper [p1967](https://wg21.link/p1967). It implements
everything in the specification, and includes an implementation that
drastically improves the time it takes to embed data in specific
scenarios (the initialization of character type arrays). The mechanisms
used to do this are used under the "as-if" rule, and in general when the
system cannot detect it is initializing an array object in a variable
declaration, will generate EmbedExpr AST node which will be expanded by
AST consumers (CodeGen or constant expression evaluators) or expand
embed directive as a comma expression.
This reverts commit
https://github.com/llvm/llvm-project/commit/682d461d5a231cee54d65910e6341769419a67d7.
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Co-authored-by: The Phantom Derpstorm <phdofthehouse@gmail.com>
Co-authored-by: Aaron Ballman <aaron@aaronballman.com>
Co-authored-by: cor3ntin <corentinjabot@gmail.com>
Co-authored-by: H. Vetinari <h.vetinari@gmx.com>
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and Obj-C++ by-proxy)" (#95299)
Reverts llvm/llvm-project#68620
Introduce or expose a memory leak and UB, see llvm/llvm-project#68620
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Obj-C++ by-proxy) (#68620)
This commit implements the entirety of the now-accepted [N3017 -
Preprocessor
Embed](https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3017.htm) and
its sister C++ paper [p1967](https://wg21.link/p1967). It implements
everything in the specification, and includes an implementation that
drastically improves the time it takes to embed data in specific
scenarios (the initialization of character type arrays). The mechanisms
used to do this are used under the "as-if" rule, and in general when the
system cannot detect it is initializing an array object in a variable
declaration, will generate EmbedExpr AST node which will be expanded
by AST consumers (CodeGen or constant expression evaluators) or
expand embed directive as a comma expression.
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Co-authored-by: Aaron Ballman <aaron@aaronballman.com>
Co-authored-by: cor3ntin <corentinjabot@gmail.com>
Co-authored-by: H. Vetinari <h.vetinari@gmx.com>
Co-authored-by: Podchishchaeva, Mariya <mariya.podchishchaeva@intel.com>
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