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[Bug target/40657] allocate local variables with fewer instructions
- From: "rearnsha at arm dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jul 2009 14:22:49 -0000
- Subject: [Bug target/40657] allocate local variables with fewer instructions
- References: <bug-40657-17659@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from rearnsha at arm dot com 2009-07-13 14:22 -------
Subject: Re: allocate local variables with fewer
instructions
On Mon, 2009-07-06 at 10:43 +0000, steven at gcc dot gnu dot org wrote:
> But how to do this in GCC... The "push {lr}" is never even in the
> RTL. Output with same options + "-dAP":
We already do this for ARM state. In thumb the split between epilogue
code in RTL and text makes it slightly more complex, but not massively
so.
R.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40657