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From: Mohamed Shafi <shafitvm@gmail.com>
To: GCC <gcc@gcc.gnu.org>
Subject: Restrictive addressing mode
Date: Tue, 11 Aug 2009 13:49:00 -0000	[thread overview]
Message-ID: <ba0bd44d0908102141m6a29728bk642401479d50d134@mail.gmail.com> (raw)

Hello all,

I am trying to port a 32bit target in GCC 4.4.0
Of the addressing modes that are allowed by my target the one with
(base register + offset) is restrictive in QImode.
The restriction is that if the base register is not Stack Pointer then
this kind of address cannot come in a load instruction but only in
store instruction. So how can i implement this? Should i do a
define_expand for movQi3 and force it to a register when i get this
addressing mode?

Please let me know your thoughts on this.

Regards,
shafi

                 reply	other threads:[~2009-08-11  4:41 UTC|newest]

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