* lcm.c (make_preds_opaque): Fix comment.
(optimize_mode_switching): Use NORMAL_MODE instead of
MODE_USES_IN_EXIT_BLOCK. Change leftover instance of
FP_MODE_NONE to no_mode. Rename MODE_AT_ENTRY to NORMAL_MODE.
Handle insertions before an existing NOTE_INSN_BASIC_BLOCK.
* tm.texi (OPTIMIZE_MODE_SWITCHING): Refer to NORMAL_MODE.
(MODE_USES_IN_EXIT_BLOCK): Delete.
(MODE_AT_ENTRY) Rename to NORMAL_MODE.
* sh.h (MODE_USES_IN_EXIT_BLOCK): Delete.
(MODE_AT_ENTRY): Rename to NORMAL_MODE.
(MODE_NEEDED): Don't look for USE.
(EPILOGUE_USES): Define.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34243
138bc75d-0d04-0410-961f-
82ee72b054a4