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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	[thread overview]
Message-ID: <bug-91858-4-mOJ7ghLgEI@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-91858-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91858

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

with

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

  parent reply	other threads:[~2020-04-01 12:41 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-91858-4@http.gcc.gnu.org/bugzilla/>
2020-03-12 11:58 ` jakub at gcc dot gnu.org
2020-04-01 12:28 ` vincent-gcc at vinc17 dot net
2020-04-01 12:41 ` rguenth at gcc dot gnu.org [this message]
2020-04-01 13:17 ` vincent-gcc at vinc17 dot net
2020-04-01 13:33 ` vincent-gcc at vinc17 dot net
2020-04-01 13:38 ` rguenther at suse dot de
2020-04-01 14:17 ` vincent-gcc at vinc17 dot net
2020-04-01 14:33 ` vincent-gcc at vinc17 dot net
2020-04-01 15:53 ` vincent-gcc at vinc17 dot net
2020-04-03 12:23 ` rguenth at gcc dot gnu.org

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