2007-01-18 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-structalias.c: Update comments.
(ptabitmap_obstack): Removed.
(pta_obstack): New.
(oldpta_obstack): Ditto.
(stats): Add a few members.
(struct variable_info): Remove node, complex, address_taken, and
indirect_target members. Add oldsolution member.
(new_var_info): Do not initialize removed members.
(constraint_expr_type): Remove INCLUDES.
(constraint_graph): Add size, implicit_preds, rep,
indirect_cycles, eq_rep, label, direct_nodes, and complex members.
(FIRST_REF_NODE): New macro.
(LAST_REF_NODE): Ditto.
(FIRST_ADDR_NODE): Ditto.
(find): New function.
(unite): Ditto.
(dump_constraint): Do not handle INCLUDES.
(insert_into_complex): Do not insert duplicate constraints.
(condense_varmap_nodes): Renamed and rewritten into ...
(merge_node_constraints): This. Also fix bug in handling of
offseted copy constraints.
(clear_edges_for_node): No longer need to deal with preds at all,
or removing associated preds/succs.
(merge_graph_nodes): Deal with indirect_cycles.
Don't deal with predecessors.
(add_implicit_graph_edge): New function.
(add_pred_graph_edge): Ditto.
(add_graph_edge): Don't deal with predecessors.
(build_constraint_graph): Removed.
(build_pred_graph): New function.
(build_succ_graph): Ditto.
(struct scc_info): Removed in_component. Added roots, dfs, and
node_mapping. Remove visited_index, unification_queue.
(scc_visit): Deal with union-find we do now.
Deal with cycles with REF nodes.
(collapse_nodes): Renamed and rewritten to ...
(unify_nodes): This.
(process_unification_queue): Removed.
(topo_visit): Cleanup
(do_da_constraint): Use find.
(do_sd_constraint): Ditto.
(do_ds_constraint): Ditto.
(do_complex_constraint): Ditto.
(init_scc_info): Update for removed and added members.
(find_and_collapse_graph_cycles): Renamed and rewritten into ...
(find_indirect_cycles): This.
(equivalence_class): New variable.
(label_visit): New function.
(perform_variable_substitution): Rewritten.
(free_var_substitution_info): New function.
(find_equivalent_node): Ditto.
(move_complex_constraints): Ditto.
(eliminate_indirect_cycles): Ditto.
(solve_graph): Only propagate changed bits.
Use indirect cycle elimination.
Use find.
(tree_id_t): Rename to tree_vi_t, delete id member, add vi member.
(tree_id_eq): Renamed to ...
(tree_vi_eq): This. Update for member change
(insert_id_for_tree): Renamed and rewritten to ...
(insert_vi_for_tree): This.
(lookup_id_for_tree): Renamed and rewritten to ...
(lookup_vi_for_tree): This.
(get_id_for_tree): Renamed and rewritten to ...
(get_vi_for_tree): Ditto.
(get_constraint_exp_from_ssa_var): Update to use get_vi_for_tree.
(process_constraint): Don't handle INCLUDES.
Remove special ADDRESSOF case.
(find_func_aliases): Rewrite to use vi functions instead of id
ones.
(create_function_info_for): Ditto.
(create_variable_info_for): Ditto.
(intra_create_variable_infos): Ditto.
(merge_smts_into): Ditto.
(find_what_p_points_to): Ditto.
(init_base_vars): Ditto.
(init_alias_vars): Ditto.
(remove_preds_and_fake_succs): New function.
(dump_sa_points_to_info): Dump new stats.
(dump_solution_for_var): Use find.
(set_used_smts): Fix formatting.
(compute_points_to_sets): Updated for new functions.
(ipa_pta_execute): Ditto.
From-SVN: r120931
gcc/
200x-xx-xx Kazu Hirata <kazu@codesourcery.com>
Richard Sandiford <richard@codesourcery.com>
* doc/tm.texi (TARGET_FUNCTION_VALUE): Expand documentation of
parallels.
* calls.c (expand_call): If the return value is a PARALLEL,
extract its first member.
* config/m68k/linux.h (FUNCTION_EXTRA_EPILOGUE): Remove.
* config/m68k/m68k.c (m68k_output_function_epilogue): Don't
use FUNCTION_EXTRA_EPILOGUE.
(m68k_function_value): Return a PARALLEL if the return value
is of a pointer type.
* config/m68k/netbsd-elf.h (current_function_returns_pointer)
(FUNCTION_EXTRA_EPILOGUE): Remove.
* config/m68k/m68k.md (D0_REG): New constant.
Co-Authored-By: Richard Sandiford <richard@codesourcery.com>
From-SVN: r120929
gcc/
* config/m68k/m68k.c (m68k_use_return_insn): Update comments
before function. Extend register save check to include all
registers, not just integer ones.
From-SVN: r120927
gcc/
* config/m68k/m68k.md (movsf_cf_hard): Use fsmove instead of
f%$smove and f%$move.
(movdf_cf_hard): Use fdmove for cases 0 and 3 and fmove for case 1.
(extendsfdf2_cf): Use fdmove instead of f%&move.
(truncdfsf2_cf): Use fsmove instead of f%$smove.
(add<mode>3_cf, sub<mode>3_cf): Use <FP:prec> instead of <FP:round>.
From-SVN: r120924
gcc/
* config/m68k/m68k-protos.h (m68k_output_pic_call): Delete.
(output_call, m68k_legitimize_call_address): Declare.
* config/m68k/m68k.h (EXTRA_CONSTRAINT): Remove unnecessary
parenthesees. Add support for a 'W' constraint.
(LEGITIMATE_PIC_OPERAND_P): Remove SYMBOL_REF_FLAG handling.
(PRINT_OPERAND_PUNCT_VALID_P): Remove comment about 'o'.
(m68k_symbolic_call, m68k_symbolic_jump): Declare.
* config/m68k/m68k.c (m68k_symbolic_call, m68k_symbolic_jump): New
variables.
(override_options): Initialize them. Do not set flag_no_function_cse
for TARGET_ID_SHARED_LIBRARY.
(m68k_output_pic_call): Delete.
(m68k_legitimize_call_address): New function.
(print_operand): Remove the %o prefix. Handle the %p prefix.
(output_call): New function.
(m68k_output_mi_thunk): Use m68k_symbolic_jump. Always load the
target address from the GOT if symbolic jumps are not allowed.
* config/m68k/m68k.md (call, general_operand): Do not set
SYMBOL_REF_FLAG. Use m68k_legitimize_call_address instead.
Merge separate flag_pic and !flag_pic define_insns into...
(*call, *call_value): ...these new patterns. Match the address
rather than the containing MEM and require it to be a call_operand.
Use output_call to generate the asm template.
* config/m68k/predicates.md (const_call_operand): New predicate.
(call_operand): Likewise.
From-SVN: r120921
gcc/
200x-xx-xx Kazu Hirata <kazu@codesourcery.com>
Richard Sandiford <richard@codesourcery.com>
* config/m68k/m68k.h (DATA_REGNO_P, ADDRESS_REGNO_P, INT_REGNO_P)
(FP_REGNO_P): New macros.
(REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_DATA_P)
(REGNO_OK_FOR_FP_P, REG_OK_FOR_INDEX_P, REG_OK_FOR_BASE_P): Use them.
(EH_RETURN_STACKADJ_RTX): Use A0_REG.
* config/m68k/m68k.c (m68k_regno_mode_ok): Use the new REGNO macros.
Co-Authored-By: Richard Sandiford <richard@codesourcery.com>
From-SVN: r120918
gcc/
* config.gcc (m68k-*-uclinux*): Add flat.h to $tm_file.
* config/flat.h: New file.
* crtstuff.c (USE_PT_GNU_EH_FRAME): Don't define if
OBJECT_FORMAT_FLAT.
* config/m68k/m68k.h (ASM_PREFERRED_EH_DATA_FORMAT): Do not use
indirect references for -msep-data or -mid-shared-library.
Do not use PC-relative code addresses either.
* config/m68k/m68k.c (override_options): Restrict -fPIC error
to -mpcrel.
* config/m68k/uclinux.h (STARTFILE_SPEC): Define. Use Scrt1.o
for shared libraries and crt1.o for executables. Use crti.o and
crtbegin.o.
(ENDFILE_SPEC): Use crtend.o and crtn.o.
(LIB_SPEC): Suppress -Rlibc.gdb if -static-libc is given.
Do not add -elf2flt or -shared-lib-id options here.
(LINK_SPEC): Define. Pass -elf2flt if no -elf2flt option is given.
Pass -shared-lib-id if -mid-shared-library, taking the library
identifier from -mshared-library-id if given, otherwise
defaulting to 0.
(EH_FRAME_IN_DATA_SECTION): Do not undefine.
(INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Likewise.
(TARGET_OS_CPP_BUILTINS): Define __GXX_MERGED_TYPEINFO_NAMES=0
and __GXX_TYPEINFO_EQUALITY_INLINE=0 if -mid-shared-library.
(DRIVER_SELF_SPECS): Map unadorned PIC options to -msep-data.
* config/m68k/t-uclinux (EXTRA_MULTILIB_PARTS): Add crtbegin.o
and crtend.o.
* config/m68k/lb1sf68.asm (PICCALL): Use an lea and pc-relative
jump sequence for ISA A and ISA A+.
(PICJUMP): Likewise.
From-SVN: r120912
gcc/
* config.gcc (m68k-*-uclinux*): Base the port on the common
and m68k GNU/Linux files rather than on the generic ELF ones.
* config/m68k/uclinux.h (TARGET_VERSION): Override.
(TARGET_OS_CPP_BUILTINS): Use LINUX_TARGET_OS_CPP_BUILTINS.
From-SVN: r120911
* trans-expr.c (copyable_array_p): Consider user derived types without
allocatable components to be copyable.
* gfortran.dg/array_memcpy_4.f90: New test case.
From-SVN: r120906
* trans-stmt.c (compute_overall_iter_number): Enhance to precompute
the number of interations in unconditional FORALL nests with constant
bounds.
From-SVN: r120905
* config/m32r/m32r-protos.h (m32r_expand_epilogue): Declare it.
* config/m32r/m32r.c (m32r_setup_incoming_varargs): Use gen_frame_mem.
(m32r_compute_frame_size): Use unsigned for regno.
(m32r_reload_lr): Use gen_frame_mem.
(pop): New.
(m32r_output_function_epilogue): Don't output the function epilogue textually here.
(m32r_expand_epilogue): New.
(direct_return): Return false if the function has the interrupt attribute.
(m32r_hard_regno_rename_ok): Remove code for the textual epilogue.
* config/m32r/m32r.md (epilogue): New expander.
(return_lr, return_rte): New insns.
(return): Make it expander.
(return_normal): New expander.
From-SVN: r120904
* reg-stack.c (subst_stack_regs_pat) [UNSPEC_SINCOS_COS,
UNSPEC_XTRACT_FRACT]: Use generic code for instructions that
operate on the top of stack.
[UNSPEC_SINCOS_SIN, UNSPEC_XTRACT_EXP, UNSPEC_TAN]: Rewrite
register handling of instructions that output to the second
stack slot.
[UNSPEC_TAN_ONE, UNSPEC_TAN_TAN]: Remove.
(move_for_stack_reg): Special-case check for dead destination
stack slot for constant load of 1.0 inside UNSPEC_TAN.
* config/i386/i386.md (UNSPEC_TAN): New constant.
(UNSPEC_TAN_ONE, UNSPEC_TAN_TAN): Remove.
(fptanxf4_i387, fptan_extend<mode>xf4_i387): New patterns
to correctly model move of constant 1.0 to top stack slot.
(*tandf3_1, *tansf3_1, *tanxf3_1): Remove insn patterns.
(unnamed peephole2 pattern): Remove corresponding peephole2
pattern that optimizes tan insn and loading of constant 1.0.
(tanxf2): Use fptanxf4_i387.
(tan<mode>2): Rename from tansf2 and tandf2 and macroize insn
patterns using X87MODEF12 mode macro. Use fptan_extend<mode>xf4_i387
and truncate result to requested mode. Use SSE_FLOAT_MODE_P to
disable patterns for SSE math.
(sincos<mode>3): Use truncxf<mode>2_i387_noop for truncation.
(fyl2x_extend<mode>xf3_i387): Use X87MODEF12 for operand 1.
testsuite/ChangeLog:
* gcc.target/i386/387-8.c: Update comment about optimizing
inherent load of 1.0 of fptan instruction.
From-SVN: r120899
* cfgcleanup.c (cleanup_cfg): Detect cfglayout mode and set
the CLEANUP_CFGLAYOUT flag when in cfglayout mode.
* Makefile.c (GTFILES): Add cfglayout.h.
* gengtype.c (open_base_files): Likewise.
* cfglayout.c (cfg_layout_function_footer,
cfg_layout_function_header) Reindent to make gengtype happy.
* cfglayout.h (cfg_layout_function_footer,
cfg_layout_function_header): Add GTY(()) marker.
* ifcvt.c (noce_try_sign_mask): Make sure INSN_B is non-null.
From-SVN: r120893
