From: Jan Hubicka <jh@suse.cz>
To: Anthony Green <green@redhat.com>
Cc: "Gcc@Gcc. Gnu. Org" <gcc@gcc.gnu.org>,
"Java@Gcc. Gnu. Org" <java@gcc.gnu.org>
Subject: Re: basic block reordering + java
Date: Sat, 22 Sep 2001 08:43:00 -0000 [thread overview]
Message-ID: <20010922174345.F26663@atrey.karlin.mff.cuni.cz> (raw)
In-Reply-To: <005601c142aa$039ed920$5be6b4cd@cygnus.com>
> With basic block reordering, we often see code from gcj that ends in...
>
> .L20:
> call _Jv_ThrowNullPointerException
> .L21:
> call _Jv_ThrowNullPointerException
> .L22:
> call _Jv_ThrowNullPointerException
> .L23:
> call _Jv_ThrowNullPointerException
> .L24:
> call _Jv_ThrowNullPointerException
> .L25:
> call _Jv_ThrowNullPointerException
> .L26:
> call _Jv_ThrowNullPointerException
>
> Is there an easy way for GCC to merge identical blocks?
Oh yes, all you need is to modify crossjumping to add fake "noreturn"
edges and crossjump over them.
I can try to get that working later, but right now I am quite busy by other
thinks.
Honza
next prev parent reply other threads:[~2001-09-22 8:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-21 7:26 Anthony Green
2001-09-21 7:30 ` Andrew Haley
2001-09-21 7:33 ` Jakub Jelinek
2001-09-21 7:37 ` Andrew Haley
2001-09-22 8:43 ` Jan Hubicka [this message]
2001-09-24 4:49 ` Jan Hubicka
2001-09-24 15:19 ` Richard Henderson
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