[Bug c/42522] [m68k] Wrong code generated with -O2/-O3

[nospamname at web dot de]

------- Comment #9 from nospamname at web dot de  2009-12-31 13:35 -------
I compile now with a m68k-elf Compiler and do the small testcode i post
above.The Problem is same on m68k-elf Compiler too.

other CPU as -m68000 fail with -O3 or -O2

So can this Report Reopen and maybe another can check please ?
Andreas have not write with what CPU Setting he get the WORKSFORME Result.

Here is the Output 

m68k-elf-gcc.exe -c wb2.c -o "Default Profile/wb2.o"
-I"E:/amiga/AmiDevCpp/bernd/clib2/"  -m68020-60 -v -S     -O3

Using built-in specs.
COLLECT_GCC=/usr/local/amiga/bin/m68k-elf-gcc
COLLECT_LTO_WRAPPER=/usr/local/amiga/bin/../libexec/gcc/m68k-elf/4.5.0/lto-wrapper.exe
Target: m68k-elf
Configured with: /bernd/gcc4/configure --target=m68k-elf
Thread model: single
gcc version 4.5.0 20091224 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-c' '-o' 'Default Profile/wb2.o'
'-IE:/amiga/AmiDevCpp/bernd/clib2/' '-m68020-60' '-v' '-S' '-O3'

...

GNU C (GCC) version 4.5.0 20091224 (experimental) (m68k-elf)
        compiled by GNU C version 4.3.4 20090804 (release) 1, GMP version
4.2.3, MPFR 

and teh Result of -S is this 

#NO_APP
        .file   "wb2.c"
        .section        .rodata
.LC0:
        .string "%ld\n"
        .text
        .align  2
        .globl  main
        .type   main, @function
main:
        move.l %fp,-(%sp)
        move.l %sp,%fp
        clr.l 12(%fp)
        move.l #.LC0,8(%fp)
        unlk %fp
        jra printf
        .size   main, .-main
        .ident  "GCC: (GNU) 4.5.0 20091224 (experimental)" 

---------------------------

COLLECT_GCC_OPTIONS='-c' '-o' 'Default Profile/wb2.o'
'-IE:/amiga/AmiDevCpp/bernd/clib2/' '-m68000' '-v' '-S' '-O3'

with CPU m68000 or -O1 or -O0 this work ok.

#NO_APP
        .file   "wb2.c"
        .section        .rodata
.LC0:
        .string "%ld\n"
        .text
        .align  2
        .globl  main
        .type   main, @function
main:
        link.w %fp,#0
        move.l 8(%fp),%a0
        move.l 4(%a0),%a0
        cmp.b #70,(%a0)
        jeq .L10
.L7:
        moveq #0,%d0
        move.l %d0,12(%fp)
        move.l #.LC0,8(%fp)
        unlk %fp
        jra printf
.L10:
        cmp.b #76,1(%a0)
        jne .L7
        cmp.b #86,2(%a0)
        jne .L7
        cmp.b #4,3(%a0)
        jhi .L7
        tst.b 5(%a0)
        jne .L7
        moveq #0,%d1
        move.b 6(%a0),%d1
        swap %d1
        clr.w %d1
        moveq #0,%d0
        move.b 7(%a0),%d0
        lsl.l #8,%d0
        or.l %d1,%d0
        or.b 8(%a0),%d0
        moveq #8,%d1
        cmp.l %d0,%d1
        jcc .L7
        moveq #100,%d0
        move.l %d0,12(%fp)
        move.l #.LC0,8(%fp)
        unlk %fp
        jra printf
        .size   main, .-main
        .ident  "GCC: (GNU) 4.5.0 20091224 (experimental)" 


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42522