From: Richard Henderson <rth@redhat.com>
To: Olivier Hainque <hainque@ACT-Europe.FR>
Cc: Jan Hubicka <jh@suse.cz>, Michael Matz <matz@suse.de>, gcc@gcc.gnu.org
Subject: Re: Question on fixup_abnormal_edges
Date: Tue, 15 Oct 2002 17:03:00 -0000 [thread overview]
Message-ID: <20021015230235.GM25225@redhat.com> (raw)
In-Reply-To: <20021015124700.A11376@berlin.int.act-europe.fr>
On Tue, Oct 15, 2002 at 12:47:00PM +0200, Olivier Hainque wrote:
> What I'm first unclear about is:
>
> When using table driven EH, is it expected that possibly call clobbered hard
> registers get assigned to pseudos live across calls like in the case above ?
Well, except for caller-save not being intelligent enough to
add the instruction to the edge, rather than directly after
the call instruction, everything would have worked out ok.
Off-hand I don't know caller-save well enough to know how easy
it would be to (1) fix this or (2) disable allocation of call
clobbered hard regs to pseudos live across ABCALL/EH edges.
r~
next prev parent reply other threads:[~2002-10-15 23:02 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-01 2:06 Olivier Hainque
2002-10-01 2:08 ` Jan Hubicka
2002-10-01 2:57 ` Olivier Hainque
2002-10-01 3:00 ` Michael Matz
2002-10-01 3:03 ` Michael Matz
2002-10-01 3:40 ` Olivier Hainque
2002-10-01 4:23 ` Jan Hubicka
2002-10-01 6:49 ` Olivier Hainque
2002-10-01 7:02 ` Jan Hubicka
2002-10-01 7:08 ` Olivier Hainque
2002-10-01 7:12 ` Jan Hubicka
2002-10-01 8:44 ` Olivier Hainque
2002-10-01 9:08 ` Jan Hubicka
2002-10-01 9:46 ` Olivier Hainque
2002-10-01 12:24 ` Michael Matz
2002-10-02 14:11 ` Olivier Hainque
2002-10-03 6:20 ` Jan Hubicka
2002-10-03 6:26 ` Olivier Hainque
2002-10-03 6:51 ` Jan Hubicka
2002-10-03 8:06 ` Olivier Hainque
2002-10-03 8:19 ` Jan Hubicka
2002-10-15 5:35 ` Olivier Hainque
2002-10-15 17:03 ` Richard Henderson [this message]
2002-10-16 2:58 ` Olivier Hainque
2002-10-16 4:02 ` Michael Matz
2002-10-16 4:06 ` Jan Hubicka
2002-10-16 4:45 ` Michael Matz
2002-10-16 5:01 ` Jan Hubicka
2002-10-16 10:29 ` Richard Henderson
2002-10-16 10:26 ` Richard Henderson
2002-10-01 4:43 ` Michael Matz
2002-10-01 4:46 ` Jan Hubicka
2002-10-15 6:10 Richard Kenner
2002-10-15 7:47 ` Michael Matz
2002-10-15 9:25 ` Michael Matz
2002-10-16 0:31 Richard Kenner
2002-10-16 2:31 ` Richard Henderson
2002-10-16 7:08 Richard Kenner
2002-10-21 11:50 ` Jeff Law
2002-10-21 11:54 ` David S. Miller
2002-10-16 7:12 Richard Kenner
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