diff options
| -rw-r--r-- | gcc/postreload.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/postreload.c b/gcc/postreload.c index 184b158bb05..b97392337e7 100644 --- a/gcc/postreload.c +++ b/gcc/postreload.c @@ -1704,7 +1704,8 @@ move2add_valid_value_p (int regno, scalar_int_mode mode) { scalar_int_mode old_mode; if (!is_a <scalar_int_mode> (reg_mode[regno], &old_mode) - || !MODES_OK_FOR_MOVE2ADD (mode, old_mode)) + || !MODES_OK_FOR_MOVE2ADD (mode, old_mode) + || !REG_CAN_CHANGE_MODE_P (regno, old_mode, mode)) return false; /* The value loaded into regno in reg_mode[regno] is also valid in mode after truncation only if (REG:mode regno) is the lowpart of |