Comment 3 for bug 744754

Confirmed in gcc-linaro-4.5-2011.03-0:

michaelh@ursa3:~/linaro/bugs$ /tools/toolchains/gcc-linaro-4.5-2011.03-0-armv7l-maverick-cbuild71-carina7-cortexa8r1/bin/gcc -mfpu=neon -O1 -c insn-unsat-constr.i
insn-unsat-constr.c: In function 'test':
insn-unsat-constr.c:19:1: error: insn does not satisfy its constraints:
(insn 40 38 26 2 /usr/lib/gcc/arm-linux-gnueabi/4.5.2/include/arm_neon.h:10277 (set (reg:OI 95 d16 [orig:152 __b ] [152])
        (mem/s/c:OI (pre_dec:SI (reg/f:SI 3 r3 [151])) [0 __b+0 S32 A64])) 786 {*neon_movoi} (expr_list:REG_INC (reg/f:SI 3 r3 [151])
        (nil)))
insn-unsat-constr.c:19:1: internal compiler error: in reload_cse_simplify_operands, at postreload.c:402

Does not occur in gcc-linaro-4.4-2010.10-0. Does not occur at -O0, but does at -O1, -O2, -O3.

The work around is to supply -fno-auto-inc-dec.