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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/103513] [12 Regression] ICE in
 evaluate_conditions_for_known_args, at ipa-fnsummary.c:516 with -O2 and above
Date: Wed, 01 Dec 2021 07:36:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103513

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note we disable the creation of the cond_expr here normally until
!canonicalize_math_p () is true

But evrp does:
Folding statement: _10 =3D _9 * 20;
Matching expression match.pd:2075, gimple-match.c:819
Matching expression match.pd:2078, gimple-match.c:892
Matching expression match.pd:2085, gimple-match.c:952
Applying pattern match.pd:5297, gimple-match.c:53296
Matching expression match.pd:1718, gimple-match.c:280
Matching expression match.pd:2075, gimple-match.c:819
Matching expression match.pd:2078, gimple-match.c:892
Matching expression match.pd:2085, gimple-match.c:952
gimple_simplified to _10 =3D _1 =3D=3D 0 ? 0 : 20;

We should definitely be more defensive in evaluate_conditions_for_known_args
for the cond_expr but also I think evrp should disable this transformation
until later if we produce a cond_expr ...=