[all-commits] [llvm/llvm-project] 76079e: [clang][Sema] Merge Check[Sizeless]VectorCondition...

[Benjamin Maxwell via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 76079ecc891e2781168d9a92a4ff024aaffa77db
      https://github.com/llvm/llvm-project/commit/76079ecc891e2781168d9a92a4ff024aaffa77db
  Author: Benjamin Maxwell <benjamin.maxwell at arm.com>
  Date:   2025-11-26 (Wed, 26 Nov 2025)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticSemaKinds.td
    M clang/include/clang/Sema/Sema.h
    M clang/lib/Sema/SemaExprCXX.cpp
    A clang/test/Sema/AArch64/sve-vector-conditional-op.cpp

  Log Message:
  -----------
  [clang][Sema] Merge Check[Sizeless]VectorConditionalTypes implementations (#169165)

These two functions are almost identical, except for the handling
different vector types, so merging them eliminates some duplication.
This also fixes some bugs, as "sizeless" vector code was missing checks
for several cases.

This meant type checking would crash if:

 - The LHS or RHS type was void
 - The LHS or RHS type was a fixed-length vector type
- There was not a scalable vector type for the result element count/size

These are fixed with this patch and tested in
Sema/AArch64/sve-vector-conditional-op.cpp.

Fixes #169025



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