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From: "satanichiya at waifu dot club" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/94889] New: Negate function not getting optimised to negate
 call
Date: Thu, 30 Apr 2020 14:32:08 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: 9.3.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: satanichiya at waifu dot club
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94889

            Bug ID: 94889
           Summary: Negate function not getting optimised to negate call
           Product: gcc
           Version: 9.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: satanichiya at waifu dot club
  Target Milestone: ---

int func(int x)
{
    for(int i=3D0;i<sizeof(int)*8;i++)
    {
        x ^=3D (int)1<<i;
    }
    return x;
}

Does not get optimised to just a negate instruction=