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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/91858] [9/10 Regression] Compile time hog w/ complex
 float trigonometric functions
Date: Wed, 01 Apr 2020 12:41:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D91858

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
  mpc_tan (m, m, 0)

with

(gdb) p *m
$14 =3D {re =3D {{_mpfr_prec =3D 24, _mpfr_sign =3D 1, _mpfr_exp =3D 14,=20
      _mpfr_d =3D 0x3713c48}}, im =3D {{_mpfr_prec =3D 24, _mpfr_sign =3D 1=
,=20
      _mpfr_exp =3D 14, _mpfr_d =3D 0x3710278}}}
(gdb) p *m->re._mpfr_d@4
$36 =3D {11258999068426240000, 32, 81, 57753152}
(gdb) p *m->im._mpfr_d@4
$37 =3D {11258999068426240000, 32, 81, 57738592}

I guess there's only one limb, the rest looks garbage.  We're using
mpfr_set_str on the re/im part from "0x0.9c4p+14" here.=