PR middle-end/48335
* expr.c (expand_assignment): Handle all possibilities
if TO_RTX is CONCAT.
* expmed.c (store_bit_field_1): Avoid trying to create
invalid SUBREGs.
(store_split_bit_field): If SUBREG_REG (op0) or
op0 itself has smaller mode than word, return it
for offset 0 and const0_rtx for out-of-bounds stores.
If word is const0_rtx, skip it.
* gcc.c-torture/compile/pr48335-1.c: New test.
* gcc.dg/pr48335-1.c: New test.
* gcc.dg/pr48335-2.c: New test.
* gcc.dg/pr48335-3.c: New test.
* gcc.dg/pr48335-4.c: New test.
* gcc.dg/pr48335-5.c: New test.
* gcc.dg/pr48335-6.c: New test.
* gcc.dg/pr48335-7.c: New test.
* gcc.dg/pr48335-8.c: New test.
* gcc.target/i386/pr48335-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@171855 138bc75d-0d04-0410-961f-82ee72b054a4
14 files changed: