[all-commits] [llvm/llvm-project] dcec22: Lex: add support for `i128` and `ui128` suffixes (...

[Saleem Abdulrasool via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dcec224240d6e23107577e27b42f398026d284db
      https://github.com/llvm/llvm-project/commit/dcec224240d6e23107577e27b42f398026d284db
  Author: Saleem Abdulrasool <compnerd at compnerd.org>
  Date:   2025-03-13 (Thu, 13 Mar 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Lex/LiteralSupport.h
    M clang/lib/Lex/LiteralSupport.cpp
    M clang/lib/Sema/SemaExpr.cpp
    M clang/test/Lexer/ms-extensions.c

  Log Message:
  -----------
  Lex: add support for `i128` and `ui128` suffixes (#130993)

Microsoft's compiler supports an extension for 128-bit literals. This is
referenced in `intsafe.h` which is included transitievly. When building
with modules, the literal parsing causes a failure due to the missing
support for the extension. To alleviate this issue, support parsing this
literal, especially now that there is the BitInt extension.

Take the opportunity to tighten up the code slightly by ensuring that we
do not access out-of-bounds characters when lexing the token.



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