+2004-01-27 J"orn Rennecke <joern.rennecke@superh.com>
+
+ * Makefile.in (bt-load.o): Depend on except.h.
+ * bt-load.c (except.h): #include.
+ (compute_defs_uses_and_gen): If insn at end of BB can throw
+ within this function, consider registers used by it unavailable for
+ btr migration.
+ (move_btr_def): If insn at end of BB can throw, insert before rather
+ than after.
+
+ * flags.h (flag_btr_bb_exclusive): Declare.
+ * toplev.c (flag_btr_bb_exclusive): New variable.
+ (f_options): Add btr-bb-exclusive.
+ * bt-load.c (augment_live_range): Restore old behaviour if
+ flag_btr_bb_exclusive is set.
+ * common.opt: Add entry for -fbtr-bb-exclusive.
+ * opts.c (common_handle_options): Same.
+ * doc/invoke.texi: Document -fbtr-bb-exclusive.
+
+ * bt-load.c (btrs_live_at_end): New variable.
+ (compute_defs_uses_and_gen): Compute its pointed-to array.
+ (clear_btr_from_live_range, add_btr_to_live_range): Update it.
+ (augment_live_range): When augmenting with a new dominator,
+ use only its btrs_live_at_end set, but also add in the full set
+ of the old dominator.
+ (btr_def_live_range): Use btrs_live_at_end.
+ (move_btr_def): Set other_btr_uses_before_def, and move new set
+ to the end of the basic block, if appropriate.
+ (migrate_btr_defs): Allocate and free btrs_live_at_end.
+
+ * bt-load.c (basic_block_freq): Remove outdated comment.
+
2004-01-27 Alan Modra <amodra@bigpond.net.au>
* config/rs6000/rs6000.h: Correct target_flags free bits comment.
OSDN Git Service
