Updating BLIS C++ interface trsm test.

- Making A diagonally dominant to ensure that the problem at hand is solvable.

AMD-Internal: [CPUPL-3575]
Change-Id: I27cc76a212d4d10aacce880895e1e0d7532e4eb7

vendor/testcpp/test.hh

@@ -138,7 +138,7 @@ int computeErrorM(
     for ( i = 0; i < m; i ++ ) {
         for ( j = 0; j < n; j ++ ) {
 	     if ( (fabs (A( i, j )) - fabs( A_ref( i, j ))) > 0.0000001 )  {
-                cout << A(i,j) << A_ref(i,j);
+                cout << A(i,j) << A_ref(i,j)<< "\n";
                 ret = 1;
                 break;
             }

vendor/testcpp/test_trsm.cc

@@ -102,6 +102,12 @@ void test_trsm(  )
     allocate_init_buffer(B , m , n);
     copy_buffer(B, B_ref , m ,n);
 
+    // Make A diagonally dominant to guarantee that the system has a solution.
+    for(int i=0; i<m; i++)
+    {
+        A[i+i*lda] = T{float(m)}*A[i+i*lda];
+    }
+
 #ifdef PRINT
     printmatrix(A, lda ,m,m, (char *)"A");
     printmatrix(B, ldb ,m,n, (char *)"B");