This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: symbol_ref constants

From: James E Wilson <wilson at specifixinc dot com>
To: Sanjiv Kumar Gupta <skgnu at yahoo dot com>
Cc: gcc at gcc dot gnu dot org
Date: Thu, 31 Mar 2005 11:15:27 -0800
Subject: Re: symbol_ref constants
References: <20050330124333.28282.qmail@web50103.mail.yahoo.com>

Sanjiv Kumar Gupta wrote:

But I don't want to
allow expressions like (const:SI (plus:SI
symbol_ref:SI) (const_int)) in the insn.
How should I do that, do I need to implement
LEGITIMATE_CONST_P () accordingly?

Try making CONSTANT_ADDRESS_P reject the value.

Though it still isn't clear why you are getting relocation errors. If addresses wrap around at segment boundaries, then this should just work fine. a-40 gets converted into a very large positive segment offset that then wraps around back to a when 40 is added to it. Perhaps the assembler/linker need some work to handle this correctly. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

References:
- Re: symbol_ref constants
  - From: Sanjiv Kumar Gupta

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]