[all-commits] [llvm/llvm-project] 41c6e4: Reland [clang][Sema, Lex, Parse] Preprocessor embe...

[Mariya Podchishchaeva via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 41c6e4379204ffc00948edd33d59ba5ebbceaba2
      https://github.com/llvm/llvm-project/commit/41c6e4379204ffc00948edd33d59ba5ebbceaba2
  Author: Mariya Podchishchaeva <mariya.podchishchaeva at intel.com>
  Date:   2024-06-20 (Thu, 20 Jun 2024)

  Changed paths:
    M clang-tools-extra/test/pp-trace/pp-trace-macro.cpp
    M clang/docs/LanguageExtensions.rst
    M clang/include/clang/AST/Expr.h
    M clang/include/clang/AST/RecursiveASTVisitor.h
    M clang/include/clang/AST/TextNodeDumper.h
    M clang/include/clang/Basic/DiagnosticCommonKinds.td
    M clang/include/clang/Basic/DiagnosticLexKinds.td
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Basic/FileManager.h
    M clang/include/clang/Basic/StmtNodes.td
    M clang/include/clang/Basic/TokenKinds.def
    M clang/include/clang/Driver/Options.td
    M clang/include/clang/Frontend/PreprocessorOutputOptions.h
    M clang/include/clang/Lex/PPCallbacks.h
    A clang/include/clang/Lex/PPDirectiveParameter.h
    A clang/include/clang/Lex/PPEmbedParameters.h
    M clang/include/clang/Lex/Preprocessor.h
    M clang/include/clang/Lex/PreprocessorOptions.h
    M clang/include/clang/Parse/Parser.h
    M clang/include/clang/Sema/Sema.h
    M clang/include/clang/Serialization/ASTBitCodes.h
    M clang/lib/AST/Expr.cpp
    M clang/lib/AST/ExprClassification.cpp
    M clang/lib/AST/ExprConstant.cpp
    M clang/lib/AST/Interp/ByteCodeExprGen.cpp
    M clang/lib/AST/Interp/ByteCodeExprGen.h
    M clang/lib/AST/ItaniumMangle.cpp
    M clang/lib/AST/StmtPrinter.cpp
    M clang/lib/AST/StmtProfile.cpp
    M clang/lib/AST/TextNodeDumper.cpp
    M clang/lib/Basic/FileManager.cpp
    M clang/lib/Basic/IdentifierTable.cpp
    M clang/lib/CodeGen/CGExprAgg.cpp
    M clang/lib/CodeGen/CGExprConstant.cpp
    M clang/lib/CodeGen/CGExprScalar.cpp
    M clang/lib/Driver/ToolChains/Clang.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/lib/Frontend/DependencyFile.cpp
    M clang/lib/Frontend/DependencyGraph.cpp
    M clang/lib/Frontend/InitPreprocessor.cpp
    M clang/lib/Frontend/PrintPreprocessedOutput.cpp
    M clang/lib/Lex/PPDirectives.cpp
    M clang/lib/Lex/PPExpressions.cpp
    M clang/lib/Lex/PPMacroExpansion.cpp
    M clang/lib/Lex/TokenConcatenation.cpp
    M clang/lib/Parse/ParseExpr.cpp
    M clang/lib/Parse/ParseInit.cpp
    M clang/lib/Parse/ParseTemplate.cpp
    M clang/lib/Sema/SemaExceptionSpec.cpp
    M clang/lib/Sema/SemaExpr.cpp
    M clang/lib/Sema/SemaInit.cpp
    M clang/lib/Sema/TreeTransform.h
    M clang/lib/Serialization/ASTReaderStmt.cpp
    M clang/lib/Serialization/ASTWriterStmt.cpp
    M clang/lib/StaticAnalyzer/Core/ExprEngine.cpp
    A clang/test/C/C2x/Inputs/bits.bin
    A clang/test/C/C2x/Inputs/boop.h
    A clang/test/C/C2x/Inputs/i.dat
    A clang/test/C/C2x/Inputs/jump.wav
    A clang/test/C/C2x/Inputs/s.dat
    A clang/test/C/C2x/n3017.c
    A clang/test/Preprocessor/Inputs/jk.txt
    A clang/test/Preprocessor/Inputs/media/art.txt
    A clang/test/Preprocessor/Inputs/media/empty
    A clang/test/Preprocessor/Inputs/numbers.txt
    A clang/test/Preprocessor/Inputs/single_byte.txt
    A clang/test/Preprocessor/embed___has_embed.c
    A clang/test/Preprocessor/embed___has_embed_parsing_errors.c
    A clang/test/Preprocessor/embed___has_embed_supported.c
    A clang/test/Preprocessor/embed_art.c
    A clang/test/Preprocessor/embed_codegen.cpp
    A clang/test/Preprocessor/embed_constexpr.cpp
    A clang/test/Preprocessor/embed_dependencies.c
    A clang/test/Preprocessor/embed_ext_compat_diags.c
    A clang/test/Preprocessor/embed_feature_test.cpp
    A clang/test/Preprocessor/embed_file_not_found_chevron.c
    A clang/test/Preprocessor/embed_file_not_found_quote.c
    A clang/test/Preprocessor/embed_init.c
    A clang/test/Preprocessor/embed_parameter_if_empty.c
    A clang/test/Preprocessor/embed_parameter_limit.c
    A clang/test/Preprocessor/embed_parameter_offset.c
    A clang/test/Preprocessor/embed_parameter_prefix.c
    A clang/test/Preprocessor/embed_parameter_suffix.c
    A clang/test/Preprocessor/embed_parameter_unrecognized.c
    A clang/test/Preprocessor/embed_parsing_errors.c
    A clang/test/Preprocessor/embed_path_chevron.c
    A clang/test/Preprocessor/embed_path_quote.c
    A clang/test/Preprocessor/embed_preprocess_to_file.c
    A clang/test/Preprocessor/embed_single_entity.c
    A clang/test/Preprocessor/embed_weird.cpp
    M clang/test/Preprocessor/init-aarch64.c
    M clang/test/Preprocessor/init.c
    A clang/test/Preprocessor/single_byte.txt
    M clang/tools/libclang/CXCursor.cpp
    M clang/www/c_status.html

  Log Message:
  -----------
  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
https://github.com/llvm/llvm-project/commit/682d461d5a231cee54d65910e6341769419a67d7.

---------

Co-authored-by: The Phantom Derpstorm <phdofthehouse at gmail.com>
Co-authored-by: Aaron Ballman <aaron at aaronballman.com>
Co-authored-by: cor3ntin <corentinjabot at gmail.com>
Co-authored-by: H. Vetinari <h.vetinari at gmx.com>



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