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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug sanitizer/104449] [9/10/11/12 Regression] ICE: verify_gimple
 failed: dead statement in EH table with -fexceptions -fsanitize=address
 -fstack-check=generic
Date: Sat, 12 Feb 2022 12:20:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104449

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu.o=
rg

--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Confirmed. With -fstack-check=3Dgeneric, __builtin_alloca_with_align is m=
arked
> as being able to throw but asan decides to insert its annonations right
> after the builtin call instead of on the branch after the function call.

With any -fstack-check option to be exact:

  /* If we're checking the stack, `alloca' can throw.  */
  const int alloca_flags
    =3D ECF_MALLOC | ECF_LEAF | (flag_stack_check ? 0 : ECF_NOTHROW);=