Save and restore input argument 8 (lda4)
Fixes miscompilation with gcc9 -ftree-vectorize (related to issue
@@ -26,7 +26,6 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
-
#define HAVE_KERNEL_4x8 1
static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLONG lda4, FLOAT *alpha) __attribute__ ((noinline));
@@ -49,6 +48,8 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"vbroadcastss (%9), %%ymm6 \n\t" // alpha
+ "movq %8, %%xmm10 \n\t" //save lda
+
"testq $0x04, %1 \n\t"
"jz 2f \n\t"
@@ -151,6 +152,7 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"4: \n\t"
"vzeroupper \n\t"
+ "movq %%xmm10, %8 \n\t" //restore lda
:
"+r" (i), // 0
@@ -170,6 +172,7 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
"%xmm4", "%xmm5",
"%xmm6", "%xmm7",
"%xmm8", "%xmm9",
+ "%xmm10",
"%xmm12", "%xmm13", "%xmm14", "%xmm15",
"memory"
);
@@ -177,7 +180,6 @@ static void sgemv_kernel_4x8( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, BLASLO
}
-
#define HAVE_KERNEL_4x4 1
static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT *alpha) __attribute__ ((noinline));
@@ -196,6 +198,7 @@ static void sgemv_kernel_4x4( BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y, FLOAT
"vbroadcastss (%8), %%ymm6 \n\t" // alpha
+
"testq $0x04, %1 \n\t"
"jz 2f \n\t"
