tree 1ab4c57927dad1533eb0235c3b92f3293d62ef9e
parent 34f5606ee101f82a247d09d05644ad2a63c8e342
author Petar Jovanovic <petarj@mips.com> 1354663750 +0100
committer Aurelien Jarno <aurelien@aurel32.net> 1354777934 +0100

target-mips: Fix incorrect shift for SHILO and SHILOV

helper_shilo has not been shifting an accumulator value correctly for negative
values in 'shift' field. Minor optimization for shift=0 case.
This change also adds tests that will trigger issue and check for regressions.

Signed-off-by: Petar Jovanovic <petarj@mips.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Eric Johnson <ericj@mips.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>