https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82476
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note GCC knows main can only be called once (calling main more than once in
C/C++ is undefined IIRC) which is why this heuristic is there.
If you change the name from main to say ff, then the function gets inlined as
you wanted it to be.
_Z2ffv:
.LFB103:
.cfi_startproc
.cfi_personality 0x9b,DW.ref.__gxx_personality_v0
.cfi_lsda 0x1b,.LLSDA103
stp x29, x30, [sp, -32]!
.cfi_def_cfa_offset 32
.cfi_offset 29, -32
.cfi_offset 30, -24
adrp x0, .LC0
add x0, x0, :lo12:.LC0
add x29, sp, 0
.cfi_def_cfa_register 29
str x19, [sp, 16]
.cfi_offset 19, -16
.LEHB3:
bl puts
.LEHE3:
adrp x0, .LC1
add x0, x0, :lo12:.LC1
.LEHB4:
bl puts
.LEHE4:
adrp x19, .LC2
add x19, x19, :lo12:.LC2
mov x0, x19
bl puts
mov x0, x19
bl puts
mov w0, 0
ldr x19, [sp, 16]
ldp x29, x30, [sp], 32
