[all-commits] [llvm/llvm-project] ecdc52: [Clang] Fix crash in __builtin_assume_aligned (#11...

[Oliver Stannard via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ecdc5289afec1af98640b6375a52aaf448fe7388
      https://github.com/llvm/llvm-project/commit/ecdc5289afec1af98640b6375a52aaf448fe7388
  Author: Oliver Stannard <oliver.stannard at arm.com>
  Date:   2024-12-19 (Thu, 19 Dec 2024)

  Changed paths:
    M clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-type-vararg.cpp
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/lib/Sema/SemaChecking.cpp
    A clang/test/Sema/builtin-assume-aligned-downgrade.c
    M clang/test/Sema/builtin-assume-aligned.c

  Log Message:
  -----------
  [Clang] Fix crash in __builtin_assume_aligned (#114217)

The CodeGen for __builtin_assume_aligned assumes that the first argument
is a pointer, so crashes if the int-conversion error is downgraded or
disabled. Emit a non-downgradable error if the argument is not a
pointer, like we currently do for __builtin_launder.

Fixes #110914.



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