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Re: patch to reduce register pressure from strength reduction
- To: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Subject: Re: patch to reduce register pressure from strength reduction
- From: Jeffrey A Law <law at hurl dot cygnus dot com>
- Date: Wed, 03 Feb 1999 08:57:36 -0700
- cc: wilson at cygnus dot com, egcs-patches at egcs dot cygnus dot com
- Reply-To: law at cygnus dot com
In message <199902030816.IAA04560@phal.cygnus.co.uk>you write:
> This bootstrap attempt found a different problem - the assembler complained
> about duplicate labels. Loop unrolling had duplicated and EH region.
> The appended patch disables unrolling when there are EH notes in the loop:
>
> Wed Feb 3 08:13:38 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
>
> * unroll.c (unroll_loop): Disable unrolling when seeing EH region
> notes.
Don't install this patch. Mark Mitchell & Andrew MacLeod have been working
on fixing the bad interactions between EH & unrolling.
Did the bootstrap otherwise succeed?
jeff