new gcc:

30788e98: ebfff984 bl 307874b0 <get_non_intra_block>
30788e9c: e1a03000 mov r3, r0
30788ea0: e58d301c str r3, [sp, #28]
30788ea4: e59d3014 ldr r3, [sp, #20]
30788ea8: e59330d0 ldr r3, [r3, #208] ; 0xd0
30788eac: e59d2008 ldr r2, [sp, #8]
30788eb0: e58d2000 str r2, [sp]
30788eb4: e59d001c ldr r0, [sp, #28]
30788eb8: e1a02003 mov r2, r3
30788ebc: e59d300c ldr r3, [sp, #12]
30788ec0: ebffe28a bl 307818f0 <mpeg2_idct_add>

old gcc:

30794760: ebffc861 bl 307868ec <get_non_intra_block>
30794764: e1a03000 mov r3, r0
30794768: e58d3014 str r3, [sp, #20]
3079476c: e59d3010 ldr r3, [sp, #16]
30794770: e59330d0 ldr r3, [r3, #208]
30794774: e59d0014 ldr r0, [sp, #20]
30794778: e1a01003 mov r1, r3
3079477c: e59d2008 ldr r2, [sp, #8]
30794780: e59d3004 ldr r3, [sp, #4]
30794784: ebffb4ea bl 30781b34 <mpeg2_idct_add>