[Bug libgcc/114907] Missing __extendhfbf2 in libgcc

[hjl.tools at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114907

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-cfl-3 pr114907]$ cat foo.c
__bf16
foo (_Float16 x)
{
  return x;
}
[hjl@gnu-cfl-3 pr114907]$ make CC=gcc
gcc -O2 -S foo.c
[hjl@gnu-cfl-3 pr114907]$ cat foo.s
        .file   "foo.c"
        .text
        .p2align 4
        .globl  foo
        .type   foo, @function
foo:
.LFB0:
        .cfi_startproc
        subq    $8, %rsp
        .cfi_def_cfa_offset 16
        call    __extendhfbf2
        addq    $8, %rsp
        .cfi_def_cfa_offset 8
        ret
        .cfi_endproc
.LFE0:
        .size   foo, .-foo
        .globl  __extendhfbf2
        .ident  "GCC: (GNU) 14.0.1 20240411 (Red Hat 14.0.1-0)"
        .section        .note.GNU-stack,"",@progbits
[hjl@gnu-cfl-3 pr114907]$