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[Bug middle-end/32004] [4.1/4.2/4.3 regression] : can't find a register in class 'GENERAL_REGS' while reloading 'asm'
- From: "paolo dot bonzini at lu dot unisi dot ch" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jul 2007 09:57:26 -0000
- Subject: [Bug middle-end/32004] [4.1/4.2/4.3 regression] : can't find a register in class 'GENERAL_REGS' while reloading 'asm'
- References: <bug-32004-682@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #36 from paolo dot bonzini at lu dot unisi dot ch 2007-07-13 09:57 -------
Subject: Re: [4.1/4.2/4.3 regression] : can't find
a register in class 'GENERAL_REGS' while reloading 'asm'
kkojima at gcc dot gnu dot org wrote:
> ------- Comment #33 from kkojima at gcc dot gnu dot org 2007-07-12 01:11 -------
> It seems that the patch 126418 causes an ICE for gcc.dg/asm-4.c
> and the patch 126487 breaks gcc.c-torture/compile/20000804-1.c
> on 4.2 for SH. Both failures happen only with -O0. It looks
> ia64 testresults show similar errors:
>
> http://gcc.gnu.org/ml/gcc-testresults/2007-07/msg00309.html
> http://gcc.gnu.org/ml/gcc-testresults/2007-07/msg00446.html
The former is easy and I have a patch. I don't understand the latter
instead, it looks like (on sh at least) reload is not able to make a
valid address and it might be a latent bug. Could anybody look at it?
Paolo
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32004