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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113689] [11/12/13/14 Regression] wrong code with
 -fprofile -mcmodel=large when needing drap register since r11-6548
Date: Tue, 06 Feb 2024 18:50:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113689

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to H.J. Lu from comment #9)
> Like this?
>=20
> diff --git a/gcc/config/i386/i386.cc b/gcc/config/i386/i386.cc
> index f02c6c02ac6..ed0b0e19985 100644
> --- a/gcc/config/i386/i386.cc
> +++ b/gcc/config/i386/i386.cc
> @@ -22785,10 +22785,10 @@ x86_64_select_profile_regnum (bool r11_ok
> ATTRIBUTE_UNUSED)
>       && !REGNO_REG_SET_P (reg_live, i))))
>        return i;
>=20=20
> -  sorry ("no register available for profiling %<-mcmodel=3Dlarge%s%>",
> +  sorry ("no register available for profiling %<-mcmodel=3Dlarge%s%>, use
> r10",
>     ix86_cmodel =3D=3D CM_LARGE_PIC ? " -fPIC" : "");
>=20=20
> -  return INVALID_REGNUM;
> +  return R10_REG;
>  }
>=20=20
>  /* Output assembler code to FILE to increment profiler label # LABELNO

Just the second hunk.  I think with sorry call the compilation fails, so wh=
at
you actually emit doesn't matter (one can see it with -pipe, sure).=