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Re: Help with reload and naked constant sum causing ICE

From: Andy H <hutchinsonandy at aim dot com>
To: GCC Development <gcc at gcc dot gnu dot org>, rdsandiford at googlemail dot com
Cc: Andy H <hutchinsonandy at aim dot com>
Date: Tue, 27 May 2008 20:04:13 -0400
Subject: Re: Help with reload and naked constant sum causing ICE
References: <483AD976.8020108@aim.com> <87wslf2x24.fsf@firetop.home>

If L_R_A does nothing with it,
the normal reload handling will first try:
(const:HI (plus:HI (symbol_ref:HI ("chk_fail_buf") (const_int 2))))

This worked just as your described after I added test of reg_equiv_constant[] inside L_R_A .

So I guess that looks like the fix for bug I posted.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34641

To summarize

LEGITIMIZE_RELOAD_ADDRESS should now always check reg_equiv_constant
before it trying to do any push_reload of register.

Thanks for help!

Follow-Ups:
- Re: Help with reload and naked constant sum causing ICE
  - From: Richard Sandiford

References:
- Help with reload and naked constant sum causing ICE
  - From: Andy H
- Re: Help with reload and naked constant sum causing ICE
  - From: Richard Sandiford

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