[Bug target/40487] Extra zero extensions produced for ARM.

["steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #5 from steven at gcc dot gnu dot org  2009-06-22 17:58 -------
Compiling with gcc 4.4.1 with options "-Os -mtune=cortex-a8" I get this:

        .cpu arm7tdmi
        .fpu softvfp
        .eabi_attribute 20, 1
        .eabi_attribute 21, 1
        .eabi_attribute 23, 3
        .eabi_attribute 24, 1
        .eabi_attribute 25, 1
        .eabi_attribute 26, 1
        .eabi_attribute 30, 4
        .eabi_attribute 18, 4
        .file   "PR40487.c"
        .text
        .align  2
        .global foo
        .type   foo, %function
foo:
        @ Function supports interworking.
        @ args = 0, pretend = 0, frame = 0
        @ frame_needed = 0, uses_anonymous_args = 0
        @ link register save eliminated.
        add     r3, r0, #5
        eor     r3, r3, r0
        and     r3, r3, #255
        eor     r3, r3, r3, asl #2
        and     r3, r3, #255
        eor     r3, r3, r3, asl #1
        and     r0, r3, #255
        bx      lr
        .size   foo, .-foo
        .ident  "GCC: (GNU) 4.4.1 20090622 (prerelease) [gcc-4_4-branch
revision 148809]"


which isn't a whole lot better, is it...


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40487