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From: "vincent-gcc at vinc17 dot net" <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 13:33:18 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D91858

--- Comment #8 from Vincent Lef=C3=A8vre <vincent-gcc at vinc17 dot net> ---
The exponent range is important. With ltrace, I can see:

3472505 mpfr_set_emin(0xffffffffffff7f22, 0xffffbf92, 0xffffbf92, 46) =3D 0
3472505 mpfr_set_emax(0x8002, 0xffffbf92, 0x7fb7c2c9c420, 46) =3D 0

(BTW, this is buggy, mpfr_set_emin and mpfr_set_emax take one argument only=
).

And with these corresponding particular values

  mpfr_set_emin (-32990);
  mpfr_set_emax (32770);

my MPC test loops.=