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James Whitwell <abacau@yahoo.com.au> wrote:

> /usr/src/sys/compat/mach/mach_vm.c:304: error: Attempt to delete  
> prologue/epilogue insn:
> (insn/f 233 232 234 0 0x0 (set (mem:SI (plus:SI (reg/f:SI 1 r1)
>                  (const_int 68 [0x44])) [0 S4 A8])
>          (reg:SI 0 r0)) -1 (nil)
>      (expr_list:REG_FRAME_RELATED_EXPR (set (mem:SI (plus:SI (reg/f:SI
>      1  
> r1)
>                      (const_int 68 [0x44])) [0 S4 A8])
>              (reg:SI 65 lr))
>          (nil)))
> /usr/src/sys/compat/mach/mach_vm.c:304: internal compiler error: in  
> propagate_one_insn, at flow.c:1642

> Should I file a pr?

You should definitively submit a bug report to the GCC developers.
This seems to be a unknown compiler bug. Maybe they find a quick
workaround. Otherwise, you might try to fiddle with the 
optimization flags for this single file. 

-- 
Christian

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