tree bd6332ea17f9c46696842a252a3e2e3e6e693cb6
parent 71df81afc618da79008a7071a666cf97b62e1237
author Petar Jovanovic <petar.jovanovic@imgtec.com> 1361807140 +0100
committer Aurelien Jarno <aurelien@aurel32.net> 1362417334 +0100

target-mips: fix DSP overflow macro and affected routines

The previous implementation incorrectly used same macro to detect overflow
for addition and subtraction. This patch makes distinction between these
two, and creates separate macros. The affected routines are changed
accordingly.

This change also includes additions to the existing tests for SUBQ_S_PH and
SUBQ_S_W that would trigger the fixed issue, and it removes dead code from
the test file. The last test case in subq_s_w.c is a bug found/reported/
isolated by Klaus Peichl from Dolby.

Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>