PR rtl-opt/42216
* regrename.c: Error out if MAX_RECOG_OPERANDS is larger than
HOST_BITS_PER_WIDE_INT.
(verify_reg_in_set): New function, broken out of verify_reg_tracked.
(verify_reg_tracked): Use it.
(scan_rtx_reg): When seeing a use involving a superset of the
registers in an existing chain, enlarge that chain. Otherwise,
allow subsets and set fail_current_block for all other kinds of
overlap.
(hide_operands): New argument UNTRACKED_OPERANDS; callers changed.
Do not modify operands when the bit with the corresponding number
is set in that bitmap.
(build_def_use): When we see matching operands with different
modes, don't set fail_current_block, but keep track of such
operands in a bitmap if their registers aren't already tracked
in an open chain. Pass this bitmap to all hide_operands calls.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@155134
138bc75d-0d04-0410-961f-
82ee72b054a4