[PATCH 4/7]: Ping3: Merge from Stack Branch - i386 backend changes

[Ye, Joey]

Jan, Some SPEC case fails when setting preferred to 8 byte for x86-64,
probably due to invoking libraies with reduced boundary. Report out the
analysis result and performance diff later. 

Thanks - Joey

-----Original Message-----
From: Jan Hubicka [mailto:hubicka@ucw.cz] 
Sent: Wednesday, May 28, 2008 10:48 PM
To: Ye, Joey
Cc: gcc-patches@gcc.gnu.org; Jan Hubicka; Richard Guenther; Lu, Hongjiu;
Guo, Xuepeng; jason@redhat.com
Subject: Re: [PATCH 4/7]: Ping3: Merge from Stack Branch - i386 backend
changes

Rest of the patch seems OK.  Does the patch have some performance
implications on lets say SPECfp? (i.e. with default setting, the codegen
should be mostly unchanged.  Can we set it to align stack at runtime and
drop preferred-stack-boundary to 8 and see how both strategies compare?)

Honza