[all-commits] [llvm/llvm-project] 70ff6f: AttributorAttributes: avoid a crashing on bad alig...

[Augie Fackler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 70ff6fbeb9b5acb4995dc42286954b762d0937fd
      https://github.com/llvm/llvm-project/commit/70ff6fbeb9b5acb4995dc42286954b762d0937fd
  Author: Augie Fackler <augie at google.com>
  Date:   2022-02-23 (Wed, 23 Feb 2022)

  Changed paths:
    M llvm/lib/Transforms/IPO/AttributorAttributes.cpp
    M llvm/test/Transforms/Attributor/heap_to_stack.ll

  Log Message:
  -----------
  AttributorAttributes: avoid a crashing on bad alignments

Prior to this change, LLVM would attempt to optimize an
aligned_alloc(33, ...) call to the stack. This flunked an assertion when
trying to emit the alloca, which crashed LLVM. Avoid that with extra
checks.

Differential Revision: https://reviews.llvm.org/D119604