http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50091
--- Comment #8 from Iain Sandoe <iains at gcc dot gnu.org> 2011-09-03 14:17:12
UTC ---
(In reply to comment #7)
> Created attachment 25182 [details]
> Tentative fix
>
> Untested as of this writing.
Thanks, starting bootstrap in a minute .. .
... your patch + this (and some unrelated fixes for powerpc ADA bootstrap):
Index: gcc/config/rs6000/rs6000.c
===================================================================
@@ -19303,7 +19308,10 @@
output_asm_insn ("{cal %0,%1(%0)|addi %0,%0,%1}", xops);
/* Probe at TEST_ADDR and branch. */
- output_asm_insn ("{st|stw} 0,0(%0)", xops);
+ if (TARGET_MACHO)
+ output_asm_insn ("{st|stw} r0,0(%0)", xops);
+ else
+ output_asm_insn ("{st|stw} 0,0(%0)", xops);
fprintf (asm_out_file, "\tb ");
assemble_name_raw (asm_out_file, loop_lab);
fputc ('\n', asm_out_file);
