PR optimization/6405
* unroll.c (loop_iterations): last_loop_insn should be the previous
non-note instruction before loop->end.
* loop.c (strength_reduce): The conditional jump is the last
non-note instruction before loop->end (as above).
From-SVN: r56956
gcc:
* loop.c (scan_loop): Don't mark separate insns out of a libcall
for moving.
(move_movables): Abort if we see the first insn of a libcall.
gcc/testsuite
* gcc.c-torture/execute/loop-14.c: New test.
From-SVN: r56823
* loop.h (LOOP_AUTO_UNROLL): Rename from LOOP_FIRST_PASS.
* loop.c (strength_reduce): Update.
* toplev.c (rest_of_compilation): Do unrolling in the first
loop pass, not the second.
From-SVN: r55634
PR optimization/6713
* loop.c (loop_givs_rescan): Explicitly delete the insn that
sets a non-replaceable giv after issuing the new one.
Co-Authored-By: Glen Nakamura <glen@imodulo.com>
From-SVN: r55539
* loop.c (check_final_value): Use v->always_executed
instead of v->always_computable.
* unroll.c (final_giv_value): Don't calculate the final
value as a function of the biv if the giv is not computed
for every loop iteration.
From-SVN: r54634
2002-06-05 David S. Miller <davem@redhat.com>
Delete SEQUENCE rtl usage outside of reorg and ssa passes.
* rtl.h (gen_sequence, emit_insns, emit_insns_before,
emit_insns_before_scope, emit_insns_after,
emit_insns_after_scope): Delete declaration.
* ada/misc.c (insert_code_for): Use emit_insn* instead of
emit_insns_foo.
* config/alpha/alpha.c (alpha_set_memflags_1): Abort on SEQUENCE.
(alpha_set_memflags): Fix comment.
(set_frame_related_p): Use get_insns instead of gen_sequence.
* config/alpha/alpha.md (setjmp receiver splitter): Avoid
emitting no insns.
* config/arm/arm.c (arm_finalize_pic): Use get_insns instead of
gen_sequence.
(arm_gen_load_multiple, arm_gen_store_multiple): Likewise.
* config/fr30/fr30.c (fr30_move_double): Likewise.
* config/i386/i386.c (ix86_expand_int_movcc, ix86_expand_movstr):
Likewise.
* config/ia64/ia64.c (spill_restore_mem): Likewise.
* config/ia64/ia64.md (conditional move spliiter): Avoid emitting
no insns.
* config/m32r/m32r.c (gen_split_move_double): Use get_insns
instead of gen_sequence.
* config/mips/mips.c (embedded_pic_fnaddr_reg): Likewise.
(mips_expand_prologue, mips16_gp_pseudo_reg): Likewise.
* config/sh/sh.c (sh_need_epilogue): Likewise.
* config/sparc/sparc.md (current_function_calls_alloca, flat): New
attributes.
(setjmp pattern and split): Use them to avoid splitter which emits
no RTL.
* genattrtab.c (main): Emit include of function.h
* config/stormy16/stormy16.c (xstormy16_split_cbranch): Use
get_insns instead of gen_sequence.
* config/cris/cris.c (cris_split_movdx): Likewise.
* emit-rtl.c (emit_insns*): Kill.
(try_split): Expect insn list instead of SEQUENCE.
(make_jump_insn_raw, make_call_insn_raw): Fix comments.
(emit_*insn*): Reimplement to work with INSN lists and PATTERNs.
Make them abort if a SEQUENCE is given and RTL checking is
enabled.
(emit_*_scope): Don't forget to set scope on final insn.
(gen_sequence): Move from here...
* ssa.c (gen_sequence): To here as private function.
* builtins.c (expand_builtin_apply_args): Use emit_insn_foo, fix
comments.
(expand_builtin_return, expand_builtin_mathfn): Likewise.
(expand_builtin_strlen): Use get_insns instead of gen_sequence.
(expand_builtin_saveregs): Use emit_insn_foo, fix comments.
(expand_builtin_expect_jump): Use get_insns and fix comments.
* calls.c (try_to_integrate): Use emit_insn_foo.
(expand_call, emit_library_call_value_1): Likewise.
* expr.c (emit_queue): Handle insn lists instead of SEQUENCE.
(emit_move_insn_1): Use get_insns instead of gen_sequence.
(expand_expr): Use emit_insn_foo.
* cfgrtl.c (commit_one_edge_insertion): Use emit_insn_foo.
* except.c (build_post_landing_pads): Likewise.
* flow.c (attempt_auto_inc): Likewise.
* stmt.c (expand_fixup, fixup_gotos, expand_nl_handler_label,
expand_nl_goto_receivers, expand_decl_cleanup): Likewise.
* function.c (fixup_var_refs_insn): Use get_insns instead of
gen_sequence.
(fixup_var_refs_1): Likewise and expect insn list from gen_foo.
(fixup_memory_subreg): Use get_insns instead of gen_sequence.
(fixup_stack_1, purge_addressof_1, expand_main_function,
get_arg_pointer_save_area): Likewise.
(optimize_bit_field, instantiate_virtual_regs_1, assign_parms,
expand_function_end): Use emit_insn_foo.
(record_insns, keep_stack_depressed): Work with insn list instead
of SEQUENCE, fix comments.
* ifcvt.c (noce_emit_store_flag, noce_try_store_flag,
noce_try_store_flag_constants, noce_try_store_flag_inc,
noce_try_store_flag_mask, noce_emit_cmove, noce_try_cmove_arith,
noce_try_minmax, noce_try_abs): Use emit_insn_foo.
(noce_process_if_block): Use get_insns instead of gen_sequence.
* optabs.c (add_equal_note): Work with insn list, fix comments.
(expand_binop): Expect insn list from GEN_FCN(), use emit_insn_foo.
(expand_unop, expand_complex_abs, expand_unop_insn,
expand_no_conflict_block): Likewise.
(gen_move_insn): Use get_insns instead of gen_sequence.
(gen_cond_trap): Likewise.
* integrate.c (copy_rtx_and_substitute): Likewise.
(emit_initial_value_sets): Use emit_insn_foo.
* reload1.c (emit_output_reload_insns, emit_reload_insns): Likewise.
(fixup_abnormal_edges): Avoid losing REG_NOTES more intelligently
now that RTL generators give insn lists.
* sibcall.c (replace_call_placeholder): Use emit_insn_foo.
* doloop.c (doloop_modify, doloop_modify_runtime): Use get_insns
instead of gen_sequence.
(doloop_optimize): Work with insn lists instead of SEQUENCE rtl.
* explow.c (emit_stack_save, emit_stack_restore): Use get_insns
instead of gen_sequence.
* loop.c (move_movables, emit_prefetch_instructions,
gen_add_mult, check_dbra_loop, gen_load_of_final_value):
Likewise.
(loop_regs_update): Work with insn list instead of SEQUENCE rtl.
(product_cheap_p): Likewise, and add commentary about RTL wastage
here.
* lcm.c (optimize_mode_switching): Use get_insns instead of
gen_sequence.
* profile.c (gen_edge_profiler): Likewise.
* regmove.c (copy_src_to_dest): Likewise.
* reg-stack.c (compensate_edge): Likewise and fix comment.
* gcse.c (process_insert_insn): Likewise.
(insert_insn_end_bb): Work with insn list instead of SEQUENCE rtl.
* jump.c (delete_prior_computation): Update comment.
* genemit.c (gen_expand, gen_split, main): Use get_insns instead
of gen_sequence, update comments to match.
* recog.c (peephole2_optimize): Work with insn lists instead of
SEQUENCE rtl.
* sched-vis.c (print_pattern): Abort on SEQUENCE.
* unroll.c (unroll_loop, find_splittable_givs, final_giv_value):
Use get_insns instead of gen_sequence.
(copy_loop_body): Likewise and don't emit dummy NOTE.
* genrecog.c: Don't mention SEQUENCE rtl in comments.
* combine.c (try_combine): Expect insn lists from split generator.
* reorg.c (relax_delay_slots): Emit SEQUENCE into insn list by
hand.
From-SVN: r54497
* expmed.c (const_mult_add_overflow_p): New.
* expr.h: Declare it.
* loop.c (maybe_eliminate_biv_1) [COMPARE]: Use it.
Don't eliminate the biv if the giv has a constant multiplier and
the rhs argument of the comparison does satisfy the predicate.
Use expand_mult_add to compute the replacement constant.
From-SVN: r54075
* loop.h (struct loop_info): Add member has_prefetch.
* loop.c (PREFETCH_CONDITIONAL): Change default to 1.
(prescan_loop): Initialize has_prefetch.
(struct prefetch_info): Change prefetch_in_loop and
prefetch_before_loop from bit fields to ints.
(emit_prefetch_instructions): Several small fixes.
(check_dbra_loop): Don't reverse loop that uses prefetch.
From-SVN: r53524
* loop.c: (PREFETCH_EXTREME_DIFFERENCE, PREFETCH_BEFORE_LOOP): New.
(PREFETCH_CONDITIONAL): Renamed from PREFETCH_NOT_ALWAYS.
(struct prefetch_info): Fix spelling of member bytes_accessed.
(emit_prefetch_instructions): Make dump messages more regular;
restructure code to add more dump messages; use new macros for
heuristics. (There are no code generation changes in any of this).
From-SVN: r53371
* loop.c (load_mems): Don't change the interface of called functions.
* calls.c (expand_call): Take current_function_pretend_args_size
into account when setting argblock for sibcalls.
From-SVN: r52745
PR optimization/6233
* rtlanal.c (pure_call_p): New function.
* rtl.h (pure_call_p): Declare.
* loop.c (prescan_loop): Use it to set has_nonconst_call.
* gcse.c (store_killed_in_insn): Use pure_call_p here too.
From-SVN: r52110
PR opt/4311
* loop.h (LOOP_FIRST_PASS): New.
* loop.c (strength_reduce): Mind it when deciding to unroll.
* toplev.c (rest_of_compilation): Set it.
From-SVN: r51798
* expr.c (store_expr): When converting expression to promoted
equivalent type, allow using SUBREG_REG of TARGET as the target
of the expansion of EXP.
* loop.c (basic_induction_var, case SUBREG): Always look inside.
* config/alpha/alpha.c (rtx_equiv_function_matters): Delete decl.
(alpha_emit_set_const): Handle SImode when can't make new pseudos.
(alpha_emit_set_const_1, alpha_sa_mask): Use no_new_pseudos.
* config/alpha/alpha.md (addsi3, subsi3): Don't use if optimizing.
From-SVN: r49972
