[all-commits] [llvm/llvm-project] b5baf5: [CIR] Implement func-ptr/void-ptr addition/subtrac...

[Erich Keane via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b5baf5e062b24d0f240aae09fd771aacca891f2d
      https://github.com/llvm/llvm-project/commit/b5baf5e062b24d0f240aae09fd771aacca891f2d
  Author: Erich Keane <ekeane at nvidia.com>
  Date:   2026-03-03 (Tue, 03 Mar 2026)

  Changed paths:
    M clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
    A clang/test/CIR/CodeGen/gnu-ptr-math.c

  Log Message:
  -----------
  [CIR] Implement func-ptr/void-ptr addition/subtraction/inc/dec. (#184254)

As a GNU extension, clang supports math on void* and function pointers
in C mode only. From a CIR perspective, it makes sense to leave these
types in the IR, since it might be useful to do analysis.

During lowering, we already properly lower these to a size-1 element, so
there is no changes that need to happen besides letting this get through
CIR generation. This patch does that, plus adds some tests.



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