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2004-06-11 J"orn Rennecke <joern.rennecke@superh.com>
Reverse this patch:
2004-06-08 J"orn Rennecke <joern.rennecke@superh.com>
* basic-block.h (could_fall_through): Declare.
* cfganal.c (can_fallthru): Suceed if the target is EXIT_BLOCK_PTR.
Fail if the source already has a fallthrough edge to the exit
block pointer.
(could_fall_through): New function.
(make_edges): Check if we already have a fallthrough edge to the
exit block pointer.
cfglayout.c (fixup_fallthru_exit_predecessor): Delete.
(cfg_layout_finalize): Don't call it.
(fixup_reorder_chain): A fall through to the exit block does not
require the block to come last. Add sanity checks.
* cfgrtl.c (rtl_split_edge): Add special handling of fall through
edges to the exit block.
Apply this one instead:
* basic-block.h (could_fall_through): Declare.
* cfganal.c (can_fallthru): Succeed if the target is EXIT_BLOCK_PTR.
Fail if the source already has a fallthrough edge to the exit
block pointer.
(could_fall_through): New function.
* cfgbuild.c (make_edges): Check if we already have a fallthrough
edge to the exit block pointer.
* cfglayout.c (fixup_fallthru_exit_predecessor): Check that it is
not called before reload has completed.
Handle special case of first block having a fall-through exit edge.
(cfg_layout_finalize): Don't call it before reload or if we have
rtl epilogues.
(fixup_reorder_chain): A fall through to the exit block does not
require the block to come last. Add sanity checks.
* cfgrtl.c (rtl_split_edge): Add special handling of fall through
edges to the exit block.
* function.c (cfglayout.h): #include.
(thread_prologue_and_epilogue_insns): If we have neither return nor
epilogue, but a fall through to the exit block from mid-function,
force a non-fall-through exit.
* Makefile.in (function.o): Depend on CFGLAYOUT_H.
2004-06-08 J"orn Rennecke <joern.rennecke@superh.com>
* sh.c (dump_table): New argument start. Changed caller.
(fixup_mova): New function.
(find_barrier): Use it.
(sh_reorg): Likewise. Check for CODE_FOR_casesi_worker_2.
If the label a mova refers to is above the mova itself, change
the mova into a load.
* sh.md (*casesi_worker): Rename to:
(casesi_worker_1).
(casesi_worker_2): New insn.
* version.c (version_string): Adjust.
* basic-block.h (could_fall_through): Declare.
* cfganal.c (can_fallthru): Suceed if the target is EXIT_BLOCK_PTR.
Fail if the source already has a fallthrough edge to the exit
block pointer.
(could_fall_through): New function.
(make_edges): Check if we already have a fallthrough edge to the
exit block pointer.
cfglayout.c (fixup_fallthru_exit_predecessor): Delete.
(cfg_layout_finalize): Don't call it.
(fixup_reorder_chain): A fall through to the exit block does not
require the block to come last. Add sanity checks.
* cfgrtl.c (rtl_split_edge): Add special handling of fall through
edges to the exit block.
* sched-int.h (in_post_call_group_p): Change type to enum.
* sched-deps.c (sched_analyze_insn):
(sched_analyze): When in_post_call_group_p is post_call_initial,
don't add a dependency, but still set SCHED_GROUP_P and CANT_MOVE,
and also reset in_post_call_group_p to post_call.
(sched_analyze): When the previous basic block ended in a CALL_INSN,
initialize in_post_call_group_p as post_call_initial.
(init_deps): initialize in_post_call_group_p to not_post_call.
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