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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/111699] [14 Regression] ICE: SIGSEGV: infinite
 recursion in fold_build3_loc/fold_ternary_loc/generic_simplify_VEC_COND_EXPR
Date: Thu, 05 Oct 2023 17:49:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111699

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|needs-bisection             |

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
this was exposed by my commit (r14-3350-g47b833a9abe1) which added:
/* Likewise for view_convert of nop_conversions. */
(simplify
 (view_convert (vec_cond:s @0 @1 @2))
 (if (VECTOR_TYPE_P (type) && VECTOR_TYPE_P (TREE_TYPE (@1))
      && known_eq (TYPE_VECTOR_SUBPARTS (type),
                   TYPE_VECTOR_SUBPARTS (TREE_TYPE (@1)))
      && tree_nop_conversion_p (TREE_TYPE (type), TREE_TYPE (TREE_TYPE (@1)=
)))
  (vec_cond @0 (view_convert! @1) (view_convert! @2))))

Before we have a VIEW_CONVERT around the vec_cond which prevented the infin=
ite
loop but now we don't ...=