15 Commits

Author SHA1 Message Date
Mariya Podchishchaeva
41c6e43792
Reland [clang][Sema, Lex, Parse] Preprocessor embed in C and C++ (#95802)
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
682d461d5a.

---------

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>
2024-06-20 14:38:46 +02:00
Vitaly Buka
682d461d5a
Revert " [Sema, Lex, Parse] Preprocessor embed in C and C++ (and Obj-C and Obj-C++ by-proxy)" (#95299)
Reverts llvm/llvm-project#68620

Introduce or expose a memory leak and UB, see llvm/llvm-project#68620
2024-06-12 13:14:26 -07:00
The Phantom Derpstorm
5989450e00
[clang][Sema, Lex, Parse] Preprocessor embed in C and C++ (and Obj-C and 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.

---------

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>
2024-06-12 09:16:02 +02:00
Fangrui Song
46bf25a7c5 [test] Update tests 2021-03-09 22:32:28 -08:00
Fangrui Song
10f69948fb [pp-trace] Modernize the code
Use InitLLVM and WithColor
Delete PPTraceConsumer, add the callback in PPTraceAction
Migrae to tooling::createExecutorFromCommandLineArgs
Don't specialize empty OutputFileName

llvm-svn: 356849
2019-03-24 06:55:08 +00:00
Fangrui Song
560a45a3c4 [pp-trace] Delete -ignore and add a new option -callbacks
Summary:
-ignore specifies a list of PP callbacks to ignore. It cannot express a
whitelist, which may be more useful than a blacklist.
Add a new option -callbacks to replace it.

-ignore= (default) => -callbacks='*' (default)
-ignore=FileChanged,FileSkipped => -callbacks='*,-FileChanged,-FileSkipped'

-callbacks='Macro*' : print only MacroDefined,MacroExpands,MacroUndefined,...

Reviewers: juliehockett, aaron.ballman, alexfh, ioeric

Reviewed By: aaron.ballman

Subscribers: nemanjai, kbarton, jsji, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59296

llvm-svn: 356366
2019-03-18 13:30:17 +00:00
Aaron Ballman
b95b6f42f9 Revert r351208 (which was a revert of r350892).
This corresponds to the fix to Clang in r351470.

llvm-svn: 351471
2019-01-17 20:21:44 +00:00
Benjamin Kramer
b709b600a5 Revert "Update clang-tools-extra for r350891 from Clang."
This reverts commit r350892.

llvm-svn: 351208
2019-01-15 17:20:04 +00:00
Aaron Ballman
25116708c4 Update clang-tools-extra for r350891 from Clang.
llvm-svn: 350892
2019-01-10 21:22:28 +00:00
Vedant Kumar
5490afa6d8 [pp-trace] Update skipped source ranges in tests
Depends on D36642

llvm-svn: 312948
2017-09-11 20:47:45 +00:00
Richard Smith
b6a5578c5c Fix tests to not assume they know exactly what will be in Clang's predefines buffer.
llvm-svn: 282984
2016-09-30 23:47:58 +00:00
Richard Smith
33de8566f0 Update to match clang r236404.
llvm-svn: 236405
2015-05-04 03:15:55 +00:00
NAKAMURA Takumi
729be14435 Prune CRLF.
llvm-svn: 220678
2014-10-27 12:37:26 +00:00
John Thompson
87f9fef5a5 Changed ConditionValue argument to PPCallbacks If and Elif callbacks to be a 3-state enum.
llvm-svn: 196648
2013-12-07 08:41:15 +00:00
John Thompson
9979454e72 pp-trace - preprocessor tacing and PPCallbacks testing tool
llvm-svn: 193743
2013-10-31 12:23:32 +00:00