poly_int: expand_expr_real_2
This patch makes expand_expr_real_2 cope with polynomial mode sizes
when handling conversions involving a union type.
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@256151 138bc75d-0d04-0410-961f-82ee72b054a4