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From: "fxcoudert at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/110796] builtin_iseqsig fails some tests in
 armv8l-linux-gnueabihf
Date: Tue, 25 Jul 2023 16:50:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110796

--- Comment #5 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> =
---
OK, so it signals FE_INVALID on the first test. Can you run this with the s=
ame
options, and see what happens?

-------
#include <fenv.h>
#include <stdio.h>

void
ftrue (float x, float y)
{
  if (!__builtin_iseqsig (x, y))
    __builtin_abort ();
}

int
main ()
{
  volatile float f1, f2;

  f1 =3D 0.f; f2 =3D 0.f;
  if (fetestexcept (FE_INVALID)) printf("Invalid 1\n");
  ftrue (f1, f2);
  if (fetestexcept (FE_INVALID)) printf("Invalid 2\n");

  return 0;
}
-------

One surprising thing is that the directive "dg-add-options ieee" in the test
did not apparently add any other option for IEEE conformance=E2=80=A6=