Re: port-macppc/54827: alloca() is broken in gcc 8 on powerpc

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

The following reply was made to PR port-macppc/54827; it has been noted by GNATS.

From: Valery Ushakov <uwe%stderr.spb.ru@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: matthew green <mrg%eterna.com.au@localhost>
Subject: Re: port-macppc/54827: alloca() is broken in gcc 8 on powerpc
Date: Mon, 20 Jan 2020 06:27:20 +0300

 On Sun, Jan 19, 2020 at 08:50:01 +0000, matthew green wrote:
 
 >  a quick look at what -maltivec does that our STACK_BOUNDARY
 >  does, and it seems that maybe there are some hard coded 16
 >  vs 8 cases
 
 Actually, since we are stomping onto the first local variable I wonder
 if the one we want is RS6000_STARTING_FRAME_OFFSET that has the
 (TARGET_ALTIVEC || TARGET_VSX) ? 16 : 8 part.
 
 -uwe