lower-subreg.c (enum classify_move_insn): Rename SIMPLE_PSEUDO_REG_MOVE to DECOMPOSABLE_SIMPLE_MOVE.
ChangeLog:
* lower-subreg.c (enum classify_move_insn): Rename
SIMPLE_PSEUDO_REG_MOVE to DECOMPOSABLE_SIMPLE_MOVE.
(find_decomposable_subregs): Update.
(decompose_multiword_subregs): Add DECOMPOSE_COPIES parameter.
Only mark pseudo-to-pseudo copies as DECOMPOSABLE_SIMPLE_MOVE
if that parameter is true.
(rest_of_handle_lower_subreg): Call decompose_multiword_subregs
with DECOMPOSE_COPIES false.
(rest_of_handle_lower_subreg2): Call decompose_multiword_subregs
with DECOMPOSE_COPIES true.
testsuite/ChangeLog:
* gcc.dg/lower-subreg-1.c: Disable on arm-*-* targets.
From-SVN: r191805
