[Bug optimization/6324] [arc-elf32] optimizations generate uncomplete code

["francisco dot blasco at ds2 dot es" <gcc-bugzilla at gcc dot gnu dot org>]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=6324



------- Additional Comments From francisco.blasco@ds2.es  2003-05-26 09:25 -------
Subject: Re: [Bug optimization/6324] [arc-elf32] optimizations generate
	uncomplete code

On Sun, 2003-05-25 at 06:20, dhazeghi@yahoo.com wrote:
> PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=6324
> 
> 

It's correct, but I suppose you generate it without any optimizations.
gcc mainline generates bad code with "-O2".

Thanks in advance.

> 
> ------- Additional Comments From dhazeghi@yahoo.com  2003-05-25 04:20 -------
> Hello,
> 
> with gcc mainline I get the following assembly output. Is this correct? Thanks,
> 
> Dara
> 
>         .cpu base
>         .section .text
>         .align 4
>         .global _ll
>         .type   _ll, @function
> _ll:
>         ; BEGIN PROLOGUE ; vars= 8, regs= 0, args= 0, extra= 16
>         st fp,[sp]
>         mov fp,sp
>         sub sp,sp,24
>         ; END PROLOGUE
>         st r0,[fp,-4]
>         ld r2,[fp,-4]
>         sub.f 0,r2,0
>         nop
>         bge.nd .L2
>         mov r2,1234
>         st r2,[fp,-8]
>         b.nd .L3
> .L2:
>         mov r2,0
>         st r2,[fp,-8]
> .L3:
>         ld r2,[fp,-8]
>         mov r0,r2
>         ; EPILOGUE
>         j.d blink
>         ld.a fp,[sp,24]
>         .size   _ll, .-_ll
>         .ident  "GCC: (GNU) 3.4 20030524 (experimental)"
> 
> 
> 
> 
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-- 
======================================================
Francisco J. Blasco            francisco.blasco@ds2.es
Design Engineer
Software Dept.

Design of Systems on Silicon, S.L.
Av. Charles Robert Darwin, 2  Phone.  +34-96-136 60 04
46980 Paterna (VALENCIA)      FAX     +34-96-136 62 50
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