more support for Mulh nodes

[libfirm] / include / libfirm / firmstat.h

diff --git a/include/libfirm/firmstat.h b/include/libfirm/firmstat.h
index a36205d..94953d9 100644 (file)
--- a/include/libfirm/firmstat.h
+++ b/include/libfirm/firmstat.h
@@ -54,6 +54,7 @@ enum firmstat_optimizations_t {
        FS_OPT_ADD_SUB,                           /**< (a + x) - x = (a - x) + x */
        FS_OPT_ADD_MUL_A_X_A,                     /**< a * x + a = a * (x + 1) */
        FS_OPT_SUB_0_A,                           /**< 0 - a = -a */
+       FS_OPT_MINUS_SUB,                         /**< - (a - b) = b - a */
        FS_OPT_SUB_MUL_A_X_A,                     /**< a * x - a = a * (x - 1) */
        FS_OPT_SUB_SUB_X_Y_Z,                     /**< (x - y) - z = x - (y + z) */
        FS_OPT_MUL_MINUS_1,                       /**< a * -1 = -a */