[PATCH] fix #19444 - build failures with -O1 due to -Wmaybe-uninitialized

[H.J. Lu]

On Wed, Jan 13, 2016 at 9:46 AM, Joseph Myers
> (I agree that -O1 and -Os builds ought to work without any extra build or
> test failures, and preferably -O0 should work except for the specific
> files requiring optimization.)

I opened an -Os bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=15105

-- 
H.J.