diff options
-rw-r--r-- | gcc/ChangeLog | 9 | ||||
-rw-r--r-- | gcc/expr.c | 11 |
2 files changed, 16 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e7901e5..6cef622 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -2,6 +2,15 @@ Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> + * expr.c (expand_expr_real_2): When handling conversions involving + unions, apply tree_to_poly_uint64 to the TYPE_SIZE rather than + multiplying int_size_in_bytes by BITS_PER_UNIT. Treat GET_MODE_BISIZE + as a poly_uint64 too. + +2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> + Alan Hayward <alan.hayward@arm.com> + David Sherwood <david.sherwood@arm.com> + * rtlanal.c (subreg_get_info): Handle polynomial mode sizes. 2018-01-03 Richard Sandiford <richard.sandiford@linaro.org> @@ -8424,11 +8424,14 @@ expand_expr_real_2 (sepops ops, rtx target, machine_mode tmode, && !TYPE_REVERSE_STORAGE_ORDER (type)); /* Store this field into a union of the proper type. */ + poly_uint64 op0_size + = tree_to_poly_uint64 (TYPE_SIZE (TREE_TYPE (treeop0))); + poly_uint64 union_size = GET_MODE_BITSIZE (mode); store_field (target, - MIN ((int_size_in_bytes (TREE_TYPE - (treeop0)) - * BITS_PER_UNIT), - (HOST_WIDE_INT) GET_MODE_BITSIZE (mode)), + /* The conversion must be constructed so that + we know at compile time how many bits + to preserve. */ + ordered_min (op0_size, union_size), 0, 0, 0, TYPE_MODE (valtype), treeop0, 0, false, false); } |