http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45819
--- Comment #7 from Atsushi Nemoto <anemo at mba dot ocn.ne.jp> 2011-02-22 13:04:10 UTC --- (In reply to comment #5) > arm-linux-gnueabi-gcc-4.6.0-20101124 works fine (generates ldr instruction), It seems that was a side-effect of -fstrict-volatile-bitfields which was enabled by default on ARM EABI. With -fno-strict-volatile-bitfields, arm-linux-gnueabi-gcc-4.6.0-20110222 generates four ldrb instructions.