------- Comment #2 from ramana at gcc dot gnu dot org 2010-03-20 10:51 -------
TARGET_MD_ASSEMBLE_CLOBBERS might just be the help we need on this one - I
think I have a patch which generates the following code. Does that look any
better to you ?
foo:
@ args = 0, pretend = 0, frame = 8
@ frame_needed = 0, uses_anonymous_args = 0
@ link register save eliminated.
fmsr s13, r0
fmsr s14, r0
fmacs s13, s14, s14
fstmfdd sp!, {d8, d9, d10, d11, d12, d13, d14, d15}
movw r3, #:lower16:y
sub sp, sp, #8
movt r3, #:upper16:y
fsts s13, [sp, #4]
fsts s13, [r3, #0]
@ 5 "/tmp/fail.c" 1
vmov.i8 q0, #0
@ 6 "/tmp/fail.c" 1
vmov.i8 q1, #0
@ 7 "/tmp/fail.c" 1
vmov.i8 q2, #0
@ 8 "/tmp/fail.c" 1
vmov.i8 q3, #0
@ 9 "/tmp/fail.c" 1
vmov.i8 q4, #0
@ 10 "/tmp/fail.c" 1
vmov.i8 q5, #0
@ 11 "/tmp/fail.c" 1
vmov.i8 q6, #0
@ 12 "/tmp/fail.c" 1
vmov.i8 q7, #0
ldr r0, [sp, #4] @ float
add sp, sp, #8
fldmfdd sp!, {d8, d9, d10, d11, d12, d13, d14, d15}
bx lr
.size foo, .-foo
.comm y,4,4
.ident "GCC: (GNU) 4.5.0 20100319 (experimental)"
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43440
