https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11824
Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |4.6.0
--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
I'm not sure exactly when this was fixed, but certainly it was some time ago.
At least, gcc-4.6 appears to implement this optimization at -Os.
foo:
@ Function supports interworking.
@ args = 0, pretend = 0, frame = 8
@ frame_needed = 0, uses_anonymous_args = 0
stmfd sp!, {r0, r1, r2, lr}
mov r3, #7
mov r2, #6
mov r0, sp
add r1, sp, #4
stmia sp, {r2, r3}
bl func
ldmfd sp!, {r1, r2, r3, lr}
bx lr
