201    Mat2 r1, r2, r3, r4, r5, r6, r7;  in invert_matrix_general()  local
218    r1[0][0] = one_over_det * A[M11];  in invert_matrix_general()
219    r1[0][1] = one_over_det * -A[M01];  in invert_matrix_general()
220    r1[1][0] = one_over_det * -A[M10];  in invert_matrix_general()
221    r1[1][1] = one_over_det * A[M00];  in invert_matrix_general()
224    r2[0][0] = A[M20] * r1[0][0] + A[M21] * r1[1][0];  in invert_matrix_general()
225    r2[0][1] = A[M20] * r1[0][1] + A[M21] * r1[1][1];  in invert_matrix_general()
226    r2[1][0] = A[M30] * r1[0][0] + A[M31] * r1[1][0];  in invert_matrix_general()
227    r2[1][1] = A[M30] * r1[0][1] + A[M31] * r1[1][1];  in invert_matrix_general()
230    r3[0][0] = r1[0][0] * A[M02] + r1[0][1] * A[M12];  in invert_matrix_general()
231    r3[0][1] = r1[0][0] * A[M03] + r1[0][1] * A[M13];  in invert_matrix_general()
232    r3[1][0] = r1[1][0] * A[M02] + r1[1][1] * A[M12];  in invert_matrix_general()
233    r3[1][1] = r1[1][0] * A[M03] + r1[1][1] * A[M13];  in invert_matrix_general()
273    C[M00] = r1[0][0] - r7[0][0];  in invert_matrix_general()
274    C[M01] = r1[0][1] - r7[0][1];  in invert_matrix_general()
275    C[M10] = r1[1][0] - r7[1][0];  in invert_matrix_general()
276    C[M11] = r1[1][1] - r7[1][1];  in invert_matrix_general()