loongarch: Fixed dzamax

XiWeiGu · XiWeiGu · commit 96607cbb98bf · 2024-03-25T23:17:53.000-04:00
Initialize the registers to prevent sporadic errors.
diff --git a/kernel/loongarch64/camax_lasx.S b/kernel/loongarch64/camax_lasx.S
@@ -60,6 +60,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     PROLOGUE
     xvxor.v VM0, VM0, VM0
     xvxor.v res0, res0, res0
+    xvxor.v $xr20, $xr20, $xr20
     bge $r0, N, .L999
     bge $r0, INCX, .L999
     li.d TEMP, 1
diff --git a/kernel/loongarch64/camax_lsx.S b/kernel/loongarch64/camax_lsx.S
@@ -60,6 +60,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     PROLOGUE
     vxor.v VM0, VM0, VM0
     vxor.v res0, res0, res0
+    vxor.v $vr20, $vr20, $vr20
     bge $r0, N, .L999
     bge $r0, INCX, .L999
     li.d TEMP, 1
