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Re: alpha haifa regression
- To: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Subject: Re: alpha haifa regression
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Tue, 07 Oct 1997 15:44:22 -0600
- cc: wilson at cygnus dot com, rth at cygnus dot com, egcs at cygnus dot com
- Reply-To: law at cygnus dot com
In message <199710072139.WAA15411@phal.cygnus.co.uk>you write:
> But for ports where the arguments are set up with __builtin_saveregs -
> expanded from va_start - this would require two blockage insns - one
> in front and one at the end - which could end up in an advanced position
> in the function too.
No. You only need once since the prologue itself won't load/store in
the same area as the varargs flushback. And if there is some el-bizzaro
target that does, then emit two blockages. No big deal.
jeff