Solaris 2/SPARC Ada bootstrap broken

[Rainer Orth]

Dale,

this patch

	http://gcc.gnu.org/ml/gcc-patches/2002-08/msg00838.html

2002-08-14  Dale Johannesen  <dalej@apple.com>

	* explow.c (emit_stack_restore):  Emit memory clobbers
	preceding the stack pop, to prevent the scheduler from
	moving refs to variable arrays below this pop.
	* reload1.c (reload):  Preserve these clobbers for sched2.
	* doc/rtl.texi:  Document clobber (mem:BLK (scratch)).

broke Ada bootstrap on sparc-sun-solaris2.5.1/sparc-sun-solaris2.8: I get
an ICE compiling ada/sem_prag.adb:

+===========================GNAT BUG DETECTED==============================+
| 3.3 20020814 (experimental) (sparc-sun-solaris2.5.1) GCC error:          |
| Internal compiler error in reload_combine_note_use, at reload1.c:8962    |
| Error detected at /vol/gnu/src/gcc/gcc-dated/gcc/ada/sem_prag.adb:3560:7 |

Reverting the patch brings Ada back to bootstrap.  Well, sort of: despite
several reminders by various people, the basic patch to return Ada
bootstrap on many platforms has remained unreviewed since June 22nd,
leaving Ada bootstrap broken for two months ;-(

	http://gcc.gnu.org/ml/gcc-patches/2002-06/msg01899.html

Thus I need to apply this one and revert your patch.

	Rainer