Re: PATCH - PPC split slow unaligned load/store into smaller load/stores

[Fariborz Jahanian <fjahanian at apple dot com>]

Yes, we are aware of this. David #if 0ed the patch until we can track 
it down.

- Fariborz

On Jan 27, 2004, at 5:42 PM, Alan Modra wrote:

> On Fri, Jan 23, 2004 at 01:53:24PM -0500, David Edelsohn wrote:
> > 2004-01-13  Fariborz Jahanian <fjahanian@apple.com>
> >
> >          * config/rs6000/rs6000.c (rs6000_emit_move): split slow
> >          unaligned load/store into smaller loads and stores.
> >
> > This patch is okay.
> >
> > 	Alan and Janis: Can you be on the lookout if this has any impact
> > on PPC64 Linux?
>
> Breaks.
>
> Executing on host: /home/alan/build/ppc/gcc64-curr/gcc/xgcc 
> -B/home/alan/build/ppc/gcc64-curr/gcc/   -O1  -w -c  -o 930623-1.o 
> /src/gcc-current/gcc/testsuite/gcc.c-torture/compile/930623-1.c    
> (timeout = 300)
> /src/gcc-current/gcc/testsuite/gcc.c-torture/compile/930623-1.c: In 
> function `f':
> /src/gcc-current/gcc/testsuite/gcc.c-torture/compile/930623-1.c:7: 
> error: unrecognizable insn:
> (insn 75 74 76 0 (set (reg:SI 149)
>         (subreg:SI (reg:DI 33 1) 0)) -1 (nil)
>     (expr_list:REG_DEAD (reg:DI 33 1)
>         (nil)))
> /src/gcc-current/gcc/testsuite/gcc.c-torture/compile/930623-1.c:7: 
> internal compiler error: in extract_insn, at recog.c:2083
>
> --
> Alan Modra
> IBM OzLabs - Linux Technology Centre