* Makefile.in (fix-header): Don't needlessly depend on cpperror.o.
* alias.c (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Cast expansion to
void since it is evaluated in a comma list.
* mips.h (ASM_GENERATE_INTERNAL_LABEL): Always sprintf `NUM'
argument as a long and cast `NUM' to long to ensure it is of the
proper width. Wrap macro arguments in parens when they appear in
the expansion.
* sol2.h (ASM_GENERATE_INTERNAL_LABEL): Likewise.
* sparc.h (ASM_GENERATE_INTERNAL_LABEL): Likewise.
(ASM_DECLARE_RESULT): Fix fprintf format specifier to match
function argument return type.
(REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_FP_P,
REGNO_OK_FOR_CCFP_P): Use `(unsigned)' not `U'.
* cpplib.c (cpp_message_from_errno): Remove unneeded argument to
cpp_message.
* dbxout.c: Fix the comments after an #endif to reflect the actual
condition tested in the preceding #if.
* except.c (find_all_handler_type_matches): Switch to old-style
function definition.
* expr.c (expand_builtin): Remove unused variable `type' twice.
* gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Cast -1 before comparing it
to an unsigned long.
* haifa-sched.c (print_insn_chain): Remove unused function.
* objc/objc-act.c (build_msg_pool_reference): Hide prototype and
definition.
* toplev.c: When testing whether to include dbxout.h, also include
it when XCOFF_DEBUGGING_INFO is defined.
* unroll.c (unroll_loop): Add parentheses around assignment used
as truth value.
From-SVN: r20801
* sched.c (schedule_insns): Use xmalloc not alloca for max_uid
indexed arrays. Call free at the end of the function for them.
* haifa-sched.c (schedule_insns): Likewise.
From-SVN: r20563
* haifa-sched.c (haifa_classify_insn): TRAP_IF is risky.
(sched_analyze_2): Allow scheduling TRAP_IF.
* reorg.c (mark_referenced_resources): Examine operands of TRAP_IF.
* rtl.h (TRAP_CODE): New macro.
* rtl.def (TRAP_IF): Change second operand type to rtx.
* optabs.c (gen_cond_trap): New function.
(init_traps): New function.
(init_optabs): Call init_traps.
* expr.h: Declare gen_cond_trap.
* jump.c (jump_optimize): Optimize jumps to and around traps.
* sparc.md: Define trap instructions.
* rs6000.md: Define trap instructions.
* rs6000.c (print_operand): New code 'V' for trap condition.
(trap_comparison_operator): New function.
* m88k.md: Update use of TRAP_IF.
* tree.h (enum built_in_function): New function code BUILT_IN_TRAP.
* c-decl.c (init_decl_processing): New builtin __builtin_trap.
* expr.c (expand_builtin): Handle BUILT_IN_TRAP.
* expr.c (expand_builtin): Error if __builtin_longjmp second argument
is not 1.
From-SVN: r20543
* Makefile.in (HOST_RTL): Add $(HOST_PREFIX)bitmap.o.
(rtl.o, emit-rtl.o): Add dependency on bitmap.h.
($(HOST_PREFIX_1)rtl.o): Likewise.
($(HOST_PREFIX_1)bitmap.o): New host object.
* emit-rtl.c (toplevel): Include bitmap.h.
(gen_rtx): Handle 't' and 'b' nodes.
* print-rtl.c (print_rtx): Handle printing NOTE_INSN_LIVE notes.
Print block number for block begin/end notes. Print 't' type
nodes as a pointer. Know that the 3rd argument of live range
start/stop notes is really a range_info rtx. If type is 'b', print
out argument as a bitmap.
* rtl.c: Include bitmap.c.
(copy_rtx): Copy tree nodes as is. Copy bitmaps if type is 'b'.
(note_insn_name): Add NOTE_INSN_RANGE_{START,END}, NOTE_INSN_LIVE.
* rtl.def (RANGE_LIVE): New node to hold live information while we
recalculate the basic blocks.
(RANGE_REG, RANGE_INFO): New rtl types for live range splitting.
(RANGE_VAR): New node, to hold information saved in symbol node for New
communicating live range information to the debug output functions.
* rtl.h (rtunion_def): Add rttree and rtbit fields.
(XBITMAP, XTREE): New accessor macros.
(NOTE_LIVE_INFO): Overload NOTE_SOURCE_FILE for NOTE_INSN_LIVE notes.
(NOTE_RANGE_INFO): Similarly for NOTE_INSN_RANGE_{START,END} notes.
(NOTE_BLOCK_LIVE_RANGE_BLOCK): Define.
(NOTE_INSN_RANGE_START, NOTE_INSN_RANGE_END, NOTE_INSN_LIVE): New notes.
(RANGE_LIVE_{BITMAP,ORIG_BLOCK}): New accessor macros.
(RANGE_REG_{SYMBOL,BLOCK}_NODE, RANGE_VAR_*): New accessor macros.
(RANGE_INFO_*): Likewise.
* sched.c (sched_analyze): Keep live range start/stop notes.
(unlink_other_notes): Likewise.
* haifa-sched.c (sched_analyze): Keep live range start/stop notes.
(unlink_other_notes): Likewise.
* tree.h (BLOCK_LIVE_RANGE_{START,END,VAR_FLAG}): New accessor macros.
(BLOCK_LIVE_RANGE_FLAG): Likewise.
(DECL_LIVE_RANGE_RTL): Likewise.
(struct tree_block): Add live_range_flag, live_range_var_flag,
live_range_start and live_range_end.
(struct tree_decl): Add live_range_rtl field.
* gengenrtl.c (type_from_format): Handle 'b' and 't'.
(accessor_from_format): Likewise.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r19727
* haifa-sched.c (find_rgns): In no_loops case, fix test for leaf
blocks. Check for 1 successor which is the EXIT_BLOCK.
* haifa-sched.c (find_rgns): Detect unreachable blocks, including
unreachable loops with more than one block.
Co-Authored-By: Jim Wilson <wilson@cygnus.com>
From-SVN: r19558
* sched.c (new_insn_dead_notes): Check if the register was
used in the original instruction.
* haifa-sched.c (new_insn_dead_notes): Likewise.
From-SVN: r19494
* haifa-sched.c (build_control_flow): Accept raw data as inputs
instead of computing it locally. Callers changed.
(find_rgns): Several new arguments. Callers changed.
Generally clean up and comment better. Use dominators to
identify reducible loops. Convert some flag arrays to bitmaps.
Convert most of the code to work on pred/succ lists instead of
an edge table. Add comments for future improvements.
(schedule_insns): Allocate temporary tables for flow data, call
routines to compute flow data and pass it along to children as
arguments.
(debug_control_flow): Delete. Use dump_bb_data instead.
General cleanup + fix a bug or two.
From-SVN: r19244
* basic-block.h (basic_block_computed_jump_target): Declare.
* flags.h: (current_function_has_computed_jump): Declare.
* flow.c: (basic_block_computed_jump_target): Define.
(flow_analysis): Allocate it. Set current_function_has_computed_jump
to 0.
(find_basic_blocks): Set current_function_has_computed_jump and
elements of basic_block_computed_jump_target to 1 as appropriate.
* function.c: (current_function_has_computed_jump): Define.
* global.c (global_conflicts): Don't allocate pseudos into stack regs
at the start of a block that is reachable by a computed jump.
* reg-stack.c (stack_reg_life_analysis): If must restart, do so
immediately.
(subst_stack_regs): Undo change from Sep 4 1997.
(uses_reg_or_mem): Now unused, deleted.
* stupid.c (stupid_life_analysis): Compute
current_function_has_computed_jump.
(stupid_find_reg): Don't allocate stack regs if the function has a
computed goto.
* haifa-sched.c (is_cfg_nonregular): Delete code to determine if
the current function has a computed jump. Use the global value
instead.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r18860
* haifa-sched.c (find_post_sched_live): Use EXECUTE_IF_SET_IN_REG_SET
instead of calling REGNO_REG_SET_P for each pseudo.
(update_reg_usage): Likewise.
(compute_block_backward)dependences): Do not call "free_list" for
an empty list.
Improves compile times by about 7% on average on my PAs.
From-SVN: r18835
* haifa-sched.c (is_cfg_nonregular): Change return type to
an int. No longer compute "estimated" number of edges. Use
computed_jump_p instead of duplicating the code. Fixup/add
some comments.
(build_control_flow): Returns a value indicating an irregularity
in the cfg was detected. Count the number of edges in the cfg.
allocate various edge tables.
(find_rgns): No longer look for unreachable blocks.
(schedule_insns): Do not allocate memory for edge tables here.
Free memory for edge tables before returning. Do not perform
cross block scheduling if build_control_flow returns nonzero.
* flow.c (compute_preds_succs): More accurately determine when
a block drops in.
Fixes various compile hangs after haifa cleanup.
From-SVN: r18439
* haifa-sched.c (build_jmp_edges): Delete dead function.
(build_control_flow): Use cfg routines from flow.c
(schedule_insns): Remove debugging code accidentally checked
in earlier today.
* basic-block.h: Add external integer list structures, typdefs,
accessor macros and function declarations. Simlarly for
basic block pred/succ support and simple bitmap stuff.
* flow.c: Add functions for integer list, basic block pred/succ
support and simple bitmap support.
(compute_dominators): New function to compute dominators and
post dominators.
(find_basic_blocks): Split into two functions.
(life_analysis): Likewise.
(flow_analysis): Removed. Now handled by calling find_basic_blocks,
the life_analysis from toplev.c
* toplev.c (rest_of_compilation): Call find_basic_blocks, then
life_analysis instead of flow_analysis.
Co-Authored-By: Doug Evans <devans@cygnus.com>
From-SVN: r18421
* haifa-sched.c (free_list): Rename from free_pnd_lst.
(free_pending_lists): Rename free_pnd_lst uses.
(remove_dependence): Place expunged element on unused_insn_list.
(alloc_INSN_LIST, alloc_EXPR_LIST): New. Change all callers of
gen_rtx_*_LIST and alloc_rtx to use them.
(compute_block_backward_dependences): Free the reg_last_* lists.
From-SVN: r18415
* haifa-sched.c: Include "system.h" to get <stdlib.h> and <stdio.h>.
(BLOCKAGE_RANGE): Add parentheses around arithmetic in operand of |.
(sched_note_set): Remove unused parameter `b', all callers changed.
(schedule_block): Likewise for `rgn'.
(split_hard_reg_notes): Likewise for `orig_insn'.
(check_live): Likewise for `trg'.
(update_live): Likewise.
(check_live_1): Explcitly declare variable `i' as int.
(update_live_1): Likewise.
(insn_issue_delay): Remove unused variable `link'.
(sched_analyze_2): Add default case in enumeration switch.
(schedule_insns): Remove unused variable `i'.
* Makefile.in ($(SCHED_PREFIX)sched.o): Depend on system.h.
From-SVN: r18048
* haifa-sched.c (create_reg_dead_note): Detect and handle another
case where we kill more regs after sched than were killed before
sched.
* sched.c (create_reg_dead_note): Similarly.
From-SVN: r17183
* haifa-sched.c (haifa_classify_insn): Renamed from classify_insn.
All references changed.
* rtl.h: Protect from multiple inclusions. Add many prototypes.
* libgcc2.c (string.h): Hoist inclusion to occur before first use of
string functions like strlen.
More pending patches.
From-SVN: r17024
* haifa-sched.c (schedule_block): If the first real insn in a
block has any special notes attached to it, remove them.
Fixes bug reported by Weiwen Liu.
From-SVN: r15853
Catherine Moore
Kaveh R. Ghazi
Michael Meissner
H.J. Lu
Jeff Law
Jim Wilson
John Carr
Jeffrey A Law
Richard Henderson
Michael Meissner
J"orn Rennecke
Bernd Schmidt
Richard Henderson
Thomas Koenig
David S. Miller