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2006-05-19re PR rtl-optimization/26855 (ICE in add_deps_for_def with -fmodulo-sched ↵Daniel Berlin1-157/+264
-maltivec) 2006-05-19 Daniel Berlin <dberlin@dberlin.org> Kenneth Zadeck <zadeck@naturalbridge.com> PR rtl-optimization/26855 * df-scan.c (mw_reg_pool, mw_link_pool): New allocation pools for multiword refs. (df_scan_alloc): Added code to properly handle multiword hard registers and add all_blocks parameter. (df_scan_free_internal, df_insn_refs_delete, df_ref_record): Added code to properly handle multiword hard registers. (df_rescan_blocks): Added code to remove deleted blocks from bitmap. (df_ref_create_structure, df_ref_record): Added code to properly handle subregs. (df_ref_record_1): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER and set DF_REF_PARTIAL. (df_defs_record): Changed DF_REF_CLOBBER into DF_REF_MUST_CLOBBER. (df_uses_record): Added DF_REF_PARTIAL for subreg. (df_scan_add_problem): Added flags parameter. (df_ref_create_structure): Changed switching structure. (df_bb_refs_record): Fixed case where duplicate artificial refs were created. Changed location of flags. (df_record_entry_block_defs): Added code to make stack pointer live in entry block. Refined cases where frame pointer is needed. Changed location of flags. (df_record_exit_block_uses, df_insn_refs_record): Changed location of flags. (df_set_state): Removed function. (df_grow_reg_info, df_reg_chain_unlink, df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete, df_ref_create_structure): Formatting changes. * df-core.c (df_mvs_dump, df_set_flags, df_clear_flags, df_delete_basic_block): New function. (df_init): Changed location of flags. (df_add_problem): Added flags parameter and the way flags are processed. (df_insn_uid_debug, df_ref_debug, debug_df_defno, debug_df_ref, debug_df_chain): Improved debugging output. (df_insn_debug, df_insn_uid_debug): Added multiword reg support. (df_refs_chain_dump): Removed df parameter. (df_iterative_dataflow): Added consistency check. (df_prune_to_subcfg): Made public. (df_analyze_problem): Added blocks_to_init parameter and made public. (df_ref_record, df_bb_refs_record, df_mark_reg, df_record_exit_block_uses): Whitespace changes. (df_dump): Whitespace changes. * df.h: Some reordering to remove forward references. (df_ref_flags.DF_REF_MW_HARDREG, DF_REF_PARTIAL, DF_REF_MUST_CLOBBER, DF_REF_MAY_CLOBBER): New fields. (df_ref_flags.DF_REF_CLOBBER): Deleted field. (dataflow.flags): New field. (df.flag): Deleted field. (df_alloc_function): Added additional bitmap parameter. (df_dependent_problem_function): New type. (df_problem.changeable_flags): New field. (df_ref_flags.DF_REF_DIES_AFTER_THIS_USE, DF_SCAN_INITIAL, DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC, df_state): Removed. (df_mw_hardreg): New struct. (DF_INSN_UID_MWS): New macro. (df_refs_chain_dump, df_ref_debug, df_chain_dump): Removed df parameter. (df_add_problem, df_ru_add_problem, df_rd_add_problem, df_lr_add_problem, df_ur_add_problem, df_urec_add_problem, df_ri_add_problem, df_scan_add_problem): Added flags parameter. (df_set_state): Removed function. (df_set_flags, df_clear_flags, df_delete_basic_block) New functions. * df-problems.c (df_chain_dump): Removed df parameter. (df_ru_alloc, df_rd_alloc, df_lr_alloc, df_ur_alloc, df_urec_alloc, df_chain_alloc, df_ri_alloc): Added all blocks parameter. (df_ru_alloc, df_rd_alloc): Now resets all blocks. (df_rd_bb_local_compute_process_def, df_ur_bb_local_compute, df_chain_create_bb, df_create_unused_note, df_ri_bb_compute): Split DF_REF_CLOBBER into DF_REF_MAY_CLOBBER and DF_REF_MUST_CLOBBER cases. (df_ru_bb_local_compute_process_def, df_rd_bb_local_compute_process_def, df_lr_bb_local_compute, df_lr_bb_local_compute, df_ur_bb_local_compute, df_chain_create_bb): Made subreg aware. (df_ru_bb_local_compute, df_rd_bb_local_compute, df_lr_bb_local_compute, df_lr_bb_local_compute, df_chain_create_bb): Cleanup to use proper macros. (df_ur_local_finalize, df_urec_local_finalize): Removed unnecessary code to fixup bitvectors. (df_ri_alloc): Cleared lifetime. (df_ignore_stack_reg, df_kill_notes, df_set_notes_for_mw, df_create_unused_note): New function. (df_ri_bb_compute, df_ri_compute): Added code to create/update REG_DEAD and REG_UNUSED notes as well as register information. (df_ru_dump, df_rd_dump, df_lr_dump, df_ur_dump, df_urec_dump, df_chains_dump): Fixed crash if problem was never run. (df_ru_add_problem, df_rd_add_problem, df_lr_add_problem, df_ur_add_problem, df_urec_add_problem, df_chain_add_problem, df_ri_add_problem): Processes flags in uniform manner. (df_ru_alloc, df_ru_local_compute, df_ru_confluence_n, df_ru_free, df_ru_dump, df_rd_local_compute, df_rd_confluence_n, df_rd_free, df_rd_dump, df_urec_free_bb_info): Formatting changes. (df_ru_free_bb_info, df_ru_bb_local_compute, df_ru_dump, df_rd_free_bb_info, df_rd_bb_local_compute_process_def, df_rd_bb_local_compute, df_rd_dump, df_lr_free_bb_info, df_lr_bb_local_compute, df_lr_local_compute, df_ur_free_bb_info, df_ur_dump, df_urec_free_bb_info, df_urec_dump, df_chain_create_bb, df_ri_bb_compute): Whitespace changes. * modulo-sched.c (sms_schedule): Added flag parameter to calls. * see.c (see_initialize_data): Ditto. * final.c (rest_of_clean_state) Added regstack_completed. * rtl.h (regstack_completed): Ditto. * reg-stack.c (regstack_completed): Ditto. From-SVN: r113915
2006-04-08builtins.c, [...]: Fix comment typos.Kazu Hirata1-1/+1
* builtins.c, config/arm/arm.c, config/i386/cygwin.h, config/i386/i386.c, config/ia64/ia64.c, config/s390/fixdfdi.h, config/sh/sh.c, config/sh/sh.h, df-scan.c, except.c, haifa-sched.c, optabs.c, rtl.h, sched-deps.c, sched-int.h, sched-rgn.c, tree-inline.h, tree-ssa-dom.c, tree-ssa-loop-prefetch.c, tree-ssa-operands.c, tree-vect-patterns.c, tree-vrp.c: Fix comment typos. Follow spelling convensions. * config/ia64/ia64.opt, doc/contrib.texi, doc/invoke.texi, doc/passes.texi, doc/tm.texi, doc/tree-ssa.texi: Fix comment typos. Follow spelling conventions. From-SVN: r112782
2006-03-08df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong block as parameter.Kenneth Zadeck1-1/+1
2006-03-07 Kenneth Zadeck <zadeck@naturalbridge.com> * df-scan.c: (df_bb_refs_record): Fix obvious typo with wrong block as parameter. From-SVN: r111837
2006-03-04builtins.c, [...]: Fix comment typos.Kazu Hirata1-3/+3
* builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c, combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c, config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c, config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c, df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c, loop-invariant.c, omp-low.c, opts.c, passes.c, rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c, tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c, tree-ssa-structalias.c, tree-ssa-threadedge.c, tree-ssa-threadupdate.c, tree-vect-patterns.c, tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c, unwind-dw2.c: Fix comment typos. Follow spelling conventions. From-SVN: r111721
2006-02-09re PR rtl-optimization/24762 ([killloop-branch] code motion of non-invariant ↵Zdenek Dvorak1-1/+2
expressions with hard registers.) PR rtl-optimization/24762 * df-scan.c (df_bb_refs_record): Record correct registers defined on eh edges. From-SVN: r110815
2006-02-08df-scan.c (df_def_record_1): A set destination may be a parallel regardless ↵Daniel Berlin1-3/+2
of mode. 2006-02-08 Daniel Berlin <dberlin@dberlin.org> * df-scan.c (df_def_record_1): A set destination may be a parallel regardless of mode. From-SVN: r110761
2006-02-07df-core.c (df_set_blocks): Do not dereference function pointers.Eric Botcazou1-3/+3
* df-core.c (df_set_blocks): Do not dereference function pointers. (df_finish1): Likewise. (df_hybrid_search_forward): Likewise. (df_hybrid_search_backward): Likewise. (df_iterative_dataflow): Likewise. (df_analyze_problem): Likewise. (df_compact_blocks): Likewise. (df_dump): Likewise. * df-scan.c (df_rescan_blocks): Likewise. (df_record_entry_block_defs): Likewise. * genconditions.c (write_conditions): Guard the definition of 'insn_conditions' with the check on GCC version. (write_writer): Guard the traversal 'insn_conditions' with the check on GCC version. From-SVN: r110702
2006-01-31tree-vrp.c: Use XNEW/XCNEW allocation wrappers.Marcin Dalecki1-1/+1
2006-01-31 Marcin Dalecki <martin@dalecki.de> * tree-vrp.c: Use XNEW/XCNEW allocation wrappers. * regrename.c: Ditto. * tree-ssa-loop-im.c: Ditto. * tree-dump.c: Ditto. * tree-complex.c: Ditto. * genrecog.c: Ditto. * tree-ssa-threadupdate.c: Ditto. * tracer.c: Ditto. * java/class.c: Ditto. * java/jcf-parse.c: Ditto. * java/resource.c: Ditto. * java/except.c: Ditto. * java/jvspec.c: Ditto. * java/jcf-write.c: Ditto. * java/jcf-path.c: Ditto. * java/gjavah.c: Ditto. * java/zextract.c: Ditto. * java/jcf-io.c: Ditto. * java/jcf.h: Ditto. * java/buffer.c: Ditto. * java/lang.c: Ditto. * java/parse-scan.y: Ditto. * java/lex.c: Ditto. * java/lex.h: Ditto. * cfgloopmanip.c: Ditto. * postreload-gcse.c: Ditto. * tree-ssa-loop-manip.c: Ditto. * postreload.c: Ditto. * tree-ssa-loop-ch.c: Ditto. * loop.c: Ditto. * ipa-cp.c: Ditto. * cppspec.c: Ditto. * diagnostic.c: Ditto. * final.c: Ditto. * genoutput.c: Ditto. * gcc.c: Ditto. * cfghooks.c: Ditto. * cfgloopanal.c: Ditto. * objc/objc-act.c: Ditto. * gcov.c: Ditto. * genextract.c: Ditto. * genautomata.c: Ditto. * pretty-print.c: Ditto. * genemit.c: Ditto. * cgraphunit.c: Ditto. * flow.c: Ditto. * df-scan.c: Ditto. * haifa-sched.c: Ditto. * dominance.c: Ditto. * dbxout.c: Ditto. * tree-ssa-loop-ivopts.c: Ditto. * df-core.c: Ditto. * mode-switching.c: Ditto. * modulo-sched.c: Ditto. * graph.c: Ditto. * ipa-pure-const.c: Ditto. * cse.c: Ditto. * fix-header.c: Ditto. * web.c: Ditto. * tree-stdarg.c: Ditto. * ipa-utils.c: Ditto. * loop-init.c: Ditto. * ipa-inline.c: Ditto. * cfganal.c: Ditto. * global.c: Ditto. * alloc-pool.c: Ditto. * dwarf2out.c: Ditto. * opts.c: Ditto. * genattrtab.c: Ditto. * tree-ssa-loop-ivcanon.c: Ditto. * predict.c: Ditto. * timevar.c: Ditto. * lcm.c: Ditto. * fortran/gfortranspec.c: Ditto. * regmove.c: Ditto. * local-alloc.c: Ditto. * langhooks.c: Ditto. * function.c: Ditto. * tree-vectorizer.c: Ditto. * gcse.c: Ditto. * ipa-type-escape.c: Ditto. * alias.c: Ditto. * tree-if-conv.c: Ditto. * profile.c: Ditto. * ipa.c: Ditto. * tree-data-ref.c: Ditto. * loop-unroll.c: Ditto. * treelang/treetree.c: Ditto. * calls.c: Ditto. * bt-load.c: Ditto. * ggc-common.c: Ditto. * except.c: Ditto. * coverage.c: Ditto. * cselib.c: Ditto. * tree-cfgcleanup.c: Ditto. * tree-ssa-pre.c: Ditto. * cfgcleanup.c: Ditto. * loop-invariant.c: Ditto. * loop-iv.c: Ditto. * ipa-prop.c: Ditto. * print-tree.c: Ditto. * conflict.c: Ditto. * ggc-page.c: Ditto. * sched-deps.c: Ditto. * regclass.c: Ditto. * tree-object-size.c: Ditto. * combine.c: Ditto. * bb-reorder.c: Ditto. * resource.c: Ditto. * var-tracking.c: Ditto. * cfgloop.c: Ditto. * df-problems.c: Ditto. * reg-stack.c: Ditto. * tlink.c: Ditto. * gccspec.c: Ditto. * sched-rgn.c: Ditto. * tree-ssa-structalias.c: Ditto. * tree-ssa-reassoc.c: Ditto. * config/darwin-c.c: Ditto. * config/darwin.c: Ditto. * config/arm/arm.c: Ditto. * cfgrtl.c: Ditto. * collect2.c: Ditto. * reload1.c: Ditto. From-SVN: r110446
2006-01-27df-scan.c (df_record_entry_block_defs): Check if INCOMING_RETURN_ADDR_RTX is ↵H.J. Lu1-0/+2
defined. 2006-01-27 H.J. Lu <hongjiu.lu@intel.com> * df-scan.c (df_record_entry_block_defs): Check if INCOMING_RETURN_ADDR_RTX is defined. From-SVN: r110320
2006-01-27re PR rtl-optimization/24762 ([killloop-branch] code motion of non-invariant ↵Daniel Berlin1-40/+169
expressions with hard registers.) 2006-01-27 Daniel Berlin <dberlin@dberlin.org> Kenneth Zadeck <zadeck@naturalbridge.com> PR rtl-optimization/24762 * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY. * targhooks.c (hook_void_bitmap): New hook prototype. * targhoohs.h (hook_void_bitmap): Ditto. * bitmap.h (bitmap_head_def): Moved to coretypes.h. * coretypes.h (bitmap_head_def): Moved from bitmap.h. * target.h (live_on_entry): New function pointer. * df-scan.c (df_all_hard_regs): Removed. (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs. (df_scan_free_internal): Added df->entry_block_defs. (df_scan_alloc): Ditto. (df_scan_dump): Ditto. (df_uses_record): Plumbed flag field properly thru calls. Record EH_RETURN_DATA_REGNO in eh blocks unconditionally. This part fixes PR24762. (df_bb_refs_record): Added code to make the frame and arg pointers live in EH blocks. (df_refs_record): Added call to df_record_entry_block_defs. (df_record_entry_block_defs): New function. * df-core.c: Added comments to describe new artifical defs. * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags. (entry_block_defs): New field in struct df. (df_all_hard_regs): Deleted. * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY. * df-problems.c (df_ru_bb_local_compute_process_def): Added code to handle artifical defs in the entry to a function. (df_ru_bb_local_compute): Ditto. (df_rd_bb_local_compute_process_def): Ditto. (df_rd_bb_local_compute): Ditto. (df_lr_bb_local_compute): Ditto. (df_ur_bb_local_compute): Ditto. (df_urec_bb_local_compute): Ditto. (df_chain_create_bb): Ditto. (df_ur_local_finalize): Removed entry. (df_urec_init): Ditto. (df_urec_local_finalize): Ditto. (df_ri_bb_compute): Added detection of last use of pseudos. * Makefile.in (df-scan.o): Updated dependencies. * config/mips/mips-protos.h (mips_set_live_on_entry): Added. * config/mips/mips.c (mips_set_live_on_entry): Added. * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value for target hook. * dce.c (marked_insn_p): Added code to handle artifical defs. Co-Authored-By: Kenneth Zadeck <zadeck@naturalbridge.com> From-SVN: r110312
2006-01-21df-scan.c (problem_SCAN): Added NULL reset function.Kenneth Zadeck1-2/+26
2005-01-21 Kenneth Zadeck <zadeck@naturalbridge.com> * df-scan.c (problem_SCAN): Added NULL reset function. (df_scan_reset_blocks): Added code to call reset block function (df_bb_refs_delete) Fixed comment. (df_insn_refs_delete): Made tolerant of deleting non existent info for dataflow problems that need to be reset. * df-core.c (df_set_blocks): Ditto. * df.h (struct df_problem): Added reset_fun. * df-problems.c (problem_RU, problem_RD, problem_LR, problem_UR, problem_UREC, problem_CHAIN, problem_RI): Initialized reset_fun field. (df_chain_insn_reset, df_chain_bb_reset, df_chain_reset): New functions to clear out all references to def-use or use-def chains. From-SVN: r110066
2006-01-20df-scan.c (df_scan_free_bb_info): Added basic block parameter to be able to ↵Kenneth Zadeck1-36/+53
clean out basic block when not necessary. 2005-01-19 Kenneth Zadeck <zadeck@naturalbridge.com> * df-scan.c (df_scan_free_bb_info): Added basic block parameter to be able to clean out basic block when not necessary. (df_scan_free): Fixed to properly delete information if df is unused before calling df_finish. (df_scan_alloc, df_rescan_blocks, df_reg_chain_unlink, df_insn_create_insn_record, df_bb_refs_record): Fixed formatting or comment typos. (df_bb_refs_delete): New function. (df_refs_delete): Moved per block code to df_bb_refs_delete. * df-core.c (df_set_blocks): Added code to properly clean out unused blocks if they are not part of the blocks to consider. Added additional null check. (df_compact_blocks): Added basic block parameter to free_bb_fun to be able to clean out basic block when not necessary * df.h (df_free_bb_function): Ditto. (df_bb_refs_delete): New function. * df-problems.c (df_ru_free_bb_info, df_rd_set_bb_info, df_lr_set_bb_info, df_ur_free_bb_info, df_urec_free_bb_info):Added basic block parameter to be able to clean out basic block when not necessary. (df_ru_alloc, df_rd_alloc): Fixed dyslexic overflow test. (df_ru_free, df_rd_free, df_lr_free, df_ur_free, df_urec_free): Fixed to properly delete information if df is unused before calling df_finish. From-SVN: r110009
2006-01-112005-01-11 Kenneth Zadeck <zadeck@naturalbridge.com>Kenneth Zadeck1-1/+1
* df-scan.c (df_hard_reg_init) Moved declaration of i outside ifdef. From-SVN: r109603
2006-01-11df.h (DF_SCAN, [...]): New macros.Daniel Berlin1-0/+1795
2005-01-11 Danny Berlin <dberlin@dberlin.org> Kenneth Zadeck <zadeck@naturalbridge.com> * df.h (DF_SCAN, DF_RU, DF_RD, DF_LR, DF_UR, DF_UREC, DF_CHAIN, DF_RI, DF_LAST_PROBLEM_PLUS1, DF_DU_CHAIN, DF_UD_CHAIN, DF_REF_TYPE_NAMES, DF_HARD_REGS, DF_EQUIV_NOTES, DF_SUBREGS, DF_SCAN_BB_INFO, DF_RU_BB_INFO, DF_RD_BB_INFO, DF_LR_BB_INFO, DF_UR_BB_INFO, DF_UREC_BB_INFO, DF_LIVE_IN, DF_LIVE_OUT, DF_RA_LIVE_IN, DF_RA_LIVE_OUT, DF_UPWARD_LIVE_IN, DF_UPWARD_LIVE_OUT, DF_REF_REAL_REG, DF_REF_REGNO, DF_REF_REAL_LOC, DF_REF_REG, DF_REF_LOC, DF_REF_BB, DF_REF_BBNO, DF_REF_INSN, DF_REF_INSN_UID, DF_REF_TYPE, DF_REF_CHAIN, DF_REF_ID, DF_REF_FLAGS, DF_REF_NEXT_REG, DF_REF_PREV_REG, DF_REF_NEXT_REF, DF_REF_DATA, DF_REF_REG_DEF_P, DF_REF_REG_USE_P, DF_REF_REG_MEM_STORE_P, DF_REF_REG_MEM_LOAD_P, DF_REF_REG_MEM_P, DF_DEFS_SIZE, DF_DEFS_GET, DF_DEFS_SET, DF_USES_SIZE, DF_USES_GET, DF_USES_SET, DF_REG_SIZE, DF_REG_DEF_GET, DF_REG_DEF_SET, DF_REG_USE_GET, DF_REG_USE_SET, DF_REGNO_FIRST_DEF, DF_REGNO_LAST_USE, DF_INSN_SIZE, DF_INSN_GET, DF_INSN_SET, DF_INSN_CONTAINS_ASM, DF_INSN_LUID, DF_INSN_DEFS, DF_INSN_USES, DF_INSN_UID_GET, DF_INSN_UID_LUID, DF_INSN_UID_DEFS, DF_INSN_UID_USES, DF_SCAN_INITIAL, DF_SCAN_GLOBAL, DF_SCAN_POST_ALLOC): New macros. (df_flow_dir, df_ref_type, df_ref_flags, df_alloc_function, df_free_bb_function, df_local_compute_function, df_init_function, df_dataflow_function, df_confluence_function_0, df_confluence_function_n, df_transfer_function, df_finalizer_function, df_free_function, df_dump_problem_function, df_problem, dataflow, df_insn_info, df_reg_info, df_ref, df_link, df_ref_info, df, df_map, df_scan_bb_info, df_ru_bb_info, df_ru_bb_info, df_rd_bb_info, df_lr_bb_info, df_ur_bb_info, df_urec_bb_info, ) New types. (df_invalidated_by_call, df_all_hard_regs, df_state) New public variables. (df_init, df_add_problem, df_set_blocks, df_finish, df_analyze, df_analyze_simple_change_some_blocks, df_analyze_simple_change_one_block, df_compact_blocks, df_bb_replace, df_bb_regno_last_use_find, df_bb_regno_first_def_find, df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def, df_find_use, df_iterative_dataflow, df_dump, df_chain_dump, df_refs_chain_dump, df_regs_chain_dump, df_insn_debug, df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn, debug_df_regno, debug_df_reg, debug_df_defno, debug_df_useno, debug_df_ref, debug_df_chain, df_get_dependent_problem, df_chain_create, df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info, df_chain_dump, df_print_bb_index, df_ru_add_problem, df_ru_get_bb_info, df_rd_add_problem, df_rd_get_bb_info, df_lr_add_problem, df_lr_get_bb_info, df_ur_add_problem, df_ur_get_bb_info, df_urec_add_problem, df_urec_get_bb_info, df_chain_add_problem, df_ri_add_problem, df_reg_lifetime, df_scan_get_bb_info, df_scan_add_problem, df_rescan_blocks, df_ref_create, df_get_artificial_defs, df_get_artificial_uses, df_reg_chain_create, df_reg_chain_unlink, df_ref_remove, df_insn_refs_delete, df_refs_delete, df_reorganize_refs, df_set_state, df_hard_reg_init, df_read_modify_subreg_p) New public functions. * df-core.c: The core dataflow solver and glue routines for rtl dataflow. (df_init, df_add_problem, df_set_blocks, df_finish, df_hybrid_search_forward, df_hybrid_search_backward, df_iterative_dataflow, df_prune_to_subcfg, df_analyze_problem, df_analyze, df_get_bb_info, df_set_bb_info, df_bb_replace, df_bb_regno_last_use_find, df_bb_regno_first_def_find, df_bb_regno_last_def_find, df_insn_regno_def_p, df_find_def, df_reg_defined, df_find_use, df_reg_used, df_dump, df_refs_chain_dump, df_regs_chain_dump, df_insn_debug, df_insn_debug_regno, df_regno_debug, df_ref_debug, debug_df_insn, debug_df_reg, debug_df_regno, debug_df_ref debug_df_defno, debug_df_useno, reset_df_after_reload): New functions. * df-scan.c: The scanning fuctions, once in df.c, completely rewritten so that they now fully model the functionality of register usage at the backend. (df_scan_free_internal, df_scan_get_bb_info, df_scan_set_bb_info, df_scan_free_bb_info, df_scan_alloc, df_scan_free, df_scan_dump, df_scan_add_problem, df_grow_reg_info, df_grow_ref_info, df_grow_insn_info, df_rescan_blocks, df_ref_create, df_get_artificial_defs, df_get_artificial_uses, df_reg_chain_create, df_ref_unlink, df_reg_chain_unlink, df_ref_remove, df_insn_create_insn_record, df_insn_refs_delete, df_refs_delete, df_reorganize_refs, df_set_state, df_ref_create_structure, df_ref_record, df_read_modify_subreg_p, df_def_record_1, df_defs_record, df_uses_record, df_insn_contains_asm_1, df_insn_contains_asm, df_insn_refs_record, df_has_eh_preds, df_bb_refs_record, df_refs_record, df_mark_reg, df_record_exit_block_uses, df_hard_reg_init): New functions. * df-problems.c: Seven concrete dataflow problems that use the scanning in df-scan.c and are solved by the engine in df-core.c. (df_get_dependent_problem, df_chain_create, df_chain_unlink, df_chain_copy, df_get_live_in, df_get_live_out, df_grow_bb_info, df_chain_dump, df_print_bb_index, df_ref_bitmap, df_set_seen, df_unset_seen, df_ru_get_bb_info, df_ru_set_bb_info, df_ru_free_bb_info, df_ru_alloc, df_ru_bb_local_compute_process_def, df_ru_bb_local_compute_process_use, df_ru_bb_local_compute, df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n, df_ru_transfer_function, df_ru_free, df_ru_dump, df_ru_add_problem, df_rd_get_bb_info, df_rd_set_bb_info, df_rd_free_bb_info, df_rd_alloc, df_rd_bb_local_compute_process_def, df_rd_bb_local_compute, df_rd_local_compute, df_rd_init_solution, df_rd_confluence_n, df_rd_transfer_function, df_rd_free, df_rd_dump, df_rd_add_problem, df_lr_get_bb_info, df_lr_set_bb_info, df_lr_free_bb_info, df_lr_alloc, df_lr_bb_local_compute, df_lr_local_compute, df_lr_init, df_lr_confluence_0, df_lr_confluence_n, df_lr_transfer_function, df_lr_free, df_lr_dump, df_lr_add_problem, df_ur_get_bb_info, df_ur_set_bb_info, df_ur_free_bb_info, df_ur_alloc, df_ur_bb_local_compute, df_ur_local_compute, df_ur_init, df_ur_local_finalize, df_ur_confluence_n, df_ur_transfer_function, df_ur_free, df_ur_dump, df_ur_add_problem, df_urec_get_bb_info, df_urec_set_bb_info, df_urec_free_bb_info, df_urec_alloc, df_urec_mark_reg_change, df_urec_check_earlyclobber, df_urec_mark_reg_use_for_earlyclobber, df_urec_mark_reg_use_for_earlyclobber_1, df_urec_bb_local_compute, df_urec_local_compute, df_urec_init, df_urec_local_finalize, df_urec_confluence_n, df_urec_transfer_function, df_urec_free, df_urec_dump, df_urec_add_problem, df_chain_alloc, df_chain_create_bb_process_use, df_chain_create_bb, df_chain_finalize, df_chain_free, df_chains_dump, df_chain_add_problem, df_ri_alloc, df_ri_bb_compute, df_ri_compute, df_ri_free, df_ri_dump, df_ri_add_problem, df_reg_lifetime): New functions. * df.c: Deleted file. * ddg.c (create_ddg_dep_no_link, build_inter_loop_deps): Made code consistent with new df api. * modulo-sched.c (sms_schedule, rest_of_handle_sms, rest_of_handle_sms): Ditto. * web.c (unionfind_union, union_defs, entry_register, web_main): Ditto. * loop_invariant.c (invariant_for_use, hash_invariant_expr_1, invariant_expr_equal_p, find_defs, check_dependencies, find_invariant_insn, find_invariants_to_move, move_invariant_reg, free_inv_motion_data, move_loop_invariants): Ditto. * sched-deps.c (sched_analyze_1): Ditto. Co-Authored-By: Kenneth Zadeck <zadeck@naturalbridge.com> From-SVN: r109577