[Bug target/113689] [11/12/13/14 Regression] wrong code with -fprofile -mcmodel=large when needing drap register since r11-6548

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113689

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:51f8ac3341078303e81e72d9013698a31c5ddd29

commit r14-8808-g51f8ac3341078303e81e72d9013698a31c5ddd29
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Feb 1 08:02:27 2024 -0800

    x86-64: Find a scratch register for large model profiling

    2 scratch registers, %r10 and %r11, are available at function entry for
    large model profiling.  But %r10 may be used by stack realignment and we
    can't use %r10 in this case.  Add x86_64_select_profile_regnum to find
    a caller-saved register which isn't live or a callee-saved register
    which has been saved on stack in the prologue at entry for large model
    profiling and sorry if we can't find one.

    gcc/

            PR target/113689
            * config/i386/i386.cc (x86_64_select_profile_regnum): New.
            (x86_function_profiler): Call x86_64_select_profile_regnum to
            get a scratch register for large model profiling.

    gcc/testsuite/

            PR target/113689
            * gcc.target/i386/pr113689-1.c: New file.
            * gcc.target/i386/pr113689-2.c: Likewise.
            * gcc.target/i386/pr113689-3.c: Likewise.