added fast return, if m or n < 1

diff --git a/kernel/x86_64/dgemv_n.c b/kernel/x86_64/dgemv_n.c
index 5192ba1..5d826dc 100644 (file)
--- a/kernel/x86_64/dgemv_n.c
+++ b/kernel/x86_64/dgemv_n.c
@@ -125,6 +125,9 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
        BLASLONG n2;
        FLOAT xbuffer[4],*ybuffer;
 
+        if ( m < 1 ) return(0);
+        if ( n < 1 ) return(0);
+
        ybuffer = buffer;
        
        n1 = n / 4 ;

diff --git a/kernel/x86_64/dgemv_t.c b/kernel/x86_64/dgemv_t.c
index 76aacd3..0fa8378 100644 (file)
--- a/kernel/x86_64/dgemv_t.c
+++ b/kernel/x86_64/dgemv_t.c
@@ -104,6 +104,9 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
        BLASLONG n2;
        FLOAT ybuffer[4],*xbuffer;
 
+        if ( m < 1 ) return(0);
+        if ( n < 1 ) return(0);
+
        xbuffer = buffer;
        
        n1 = n / 4 ;

diff --git a/kernel/x86_64/sgemv_n.c b/kernel/x86_64/sgemv_n.c
index f2de1b7..faa8e1f 100644 (file)
--- a/kernel/x86_64/sgemv_n.c
+++ b/kernel/x86_64/sgemv_n.c
@@ -131,6 +131,9 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
        BLASLONG n2;
        FLOAT xbuffer[4],*ybuffer;
 
+        if ( m < 1 ) return(0);
+        if ( n < 1 ) return(0);
+
        ybuffer = buffer;
        
        n1 = n / 4 ;

diff --git a/kernel/x86_64/sgemv_t.c b/kernel/x86_64/sgemv_t.c
index adfaa99..532afee 100644 (file)
--- a/kernel/x86_64/sgemv_t.c
+++ b/kernel/x86_64/sgemv_t.c
@@ -110,6 +110,9 @@ int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLO
        BLASLONG n2;
        FLOAT ybuffer[4],*xbuffer;
 
+        if ( m < 1 ) return(0);
+        if ( n < 1 ) return(0);
+
        xbuffer = buffer;
        
        n1 = n / 4 ;

diff --git a/kernel/x86_64/zgemv_t.c b/kernel/x86_64/zgemv_t.c
index bb3f904..9f5444a 100644 (file)
--- a/kernel/x86_64/zgemv_t.c
+++ b/kernel/x86_64/zgemv_t.c
@@ -29,7 +29,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "common.h"
 
 
-#if defined(BULLDOZER)
+#if defined(BULLDOZER) || defined(PILEDRIVER)
 #include "zgemv_t_microk_bulldozer-2.c"
 #elif defined(HASWELL)
 #include "zgemv_t_microk_haswell-2.c"