On 10 September 2007 08:55, Tomas Svensson wrote:
> I am porting gcc to a new target architecture, and have come across a
> problem when the make process tries to compile libgcc. The error I get
> is included below.
>
> It seems that gcc has emitted rtl describing a memory reference (mem
> (plus (mem (plus (reg ..) (const_int ..))) (const_int ..))), which
> should not have been permitted by GO_IF_LEGITIMATE_ADDRESS since it
> only allows (mem (plus (reg ..) (const ..))), and forbids a second
> level of memory reference.
>
> I am (obviously) no gcc-expert by far, and have no idea how to tackle
> this problem. Has anyone had a similar problem, or any pointers as to
> how I can solve it?
Either step through in a debugger, or bung loads of printfs into G_I_L_A,
and see what it does when it gets given a chance to forbid the bad RTL.
You might also want to check that LEGITIMIZE_ADDRESS and even
LEGITIMIZE_RELOAD_ADDRESS aren't doing anything unsane to it.
cheers,
DaveK
--
Can't think of a witty .sigline today....
