+2007-04-30 Alexandre Oliva <aoliva@redhat.com>
+
+ PR middle-end/22156
+ Temporarily revert:
+ 2007-04-06 Andreas Tobler <a.tobler@schweiz.org>
+ * tree-sra.c (sra_build_elt_assignment): Initialize min/maxshift.
+ 2007-04-05 Alexandre Oliva <aoliva@redhat.com>
+ * tree-sra.c (try_instantiate_multiple_fields): Needlessly
+ initialize align to silence bogus warning.
+ 2007-04-05 Alexandre Oliva <aoliva@redhat.com>
+ * tree-sra.c (struct sra_elt): Add in_bitfld_block. Remove
+ all_no_warning.
+ (struct sra_walk_fns): Remove use_all parameter from use.
+ (sra_hash_tree): Handle BIT_FIELD_REFs.
+ (sra_elt_hash): Don't hash bitfld blocks.
+ (sra_elt_eq): Skip them in parent compares as well. Handle
+ BIT_FIELD_REFs.
+ (sra_walk_expr): Don't maintain or pass down use_all_p.
+ (scan_use): Remove use_all parameter.
+ (scalarize_use): Likewise. Re-expand assignment to
+ BIT_FIELD_REF of gimple_reg. De-scalarize before input or
+ output, and re-scalarize after output. Don't mark anything
+ for no warning.
+ (scalarize_ldst): Adjust.
+ (scalarize_walk_gimple_modify_statement): Likewise.
+ (build_element_name_1): Handle BIT_FIELD_REFs.
+ (instantiate_element): Don't warn for any element whose parent
+ is used as a whole.
+ (instantiate_missing_elements_1): Return the sra_elt.
+ (canon_type_for_field): New.
+ (try_instantiate_multiple_fields): New.
+ (instantiate_missing_elemnts): Use them.
+ (mark_no_warning): Removed.
+ (generate_one_element_ref): Handle BIT_FIELD_REFs.
+ (REPLDUP, sra_build_elt_assignment): New.
+ (generate_copy_inout): Use them.
+ (generate_element_copy): Likewise. Handle bitfld differences.
+ (generate_element_zero): Don't recurse for blocks. Use
+ sra_build_elt_assignment.
+ (generate_one_element_int): Take elt instead of var. Use
+ sra_build_elt_assignment.
+ (generate_element_init_1): Adjust.
+ (scalarize_use, scalarize_copy): Use REPLDUP.
+ (scalarize_ldst): Move assert before dereference.
+ (dump_sra_elt_name): Handle BIT_FIELD_REFs.
+
+2007-04-30 Andrew Pinski <andrew_pinski@playstation.sony.com>
+
+ PR C++/31721
+ * tree.c (reconstruct_complex_type): Reconstruct a reference
+ correctly.
+ Also use the same mode for the pointer as the old pointer type.
+
+2007-04-30 Francois-Xavier Coudert <coudert@clipper.ens.fr>
+
+ * doc/trouble.texi (Interoperation): Remove note about Ultrix
+ Fortran compiler.
+
+2007-04-29 Zdenek Dvorak <dvorakz@suse.cz>
+
+ PR rtl-optimization/31676
+ * df-scan.c (record_nonlocal_goto_receiver_defs): New function.
+ (df_refs_record): Call it.
+
+2007-04-29 Bernd Schmidt <bernd.schmidt@analog.com>
+
+ * rtl.def (SS_ABS): New code.
+ * config/bfin/bfin.c (print_operand): New modifier 'v'.
+ (enum bfin_builtins): Add BFIN_BUILTIN_SUM_2X16, BFIN_BUILTIN_ABS_1x32,
+ BFIN_BUILTIN_ROUND_1x32, BFIN_BUILTIN_MULT_1x32x32,
+ BFIN_BUILTIN_MULT_1x32x32NS, BFIN_BUILTIN_SSASHIFT_1x32.
+ (bfin_init_builtins): Define them.
+ (bdesc_1arg, bdesc_2arg): Add some of them here, ...
+ (bfin_expand_builtin): ... and handle the others here.
+ * config/bfin/bfin.md (ssabssi2, ssroundsi2, ssashiftsi3,
+ flag_mul_macv2hi_parts_acconly_andcc0): New patterns.
+ (ss_absv2hi2): Renamed from absv2hi; use ss_abs code.
+ (ssashiftv2hi3, ssashifthi3, lshiftv2hi3, lshifthi3): Shift count
+ operand is only HImode.
+
+2007-04-29 Steven Bosscher <steven@gcc.gnu.org>
+
+ * regclass.c (scan_one_insn): Remove splitting of
+ two address insns.
+
+2007-04-28 Sandra Loosemore <sandra@codesourcery.com>
+ Nigel Stephens <nigel@mips.com>
+
+ * config/mips/mips.h (SLOW_BYTE_ACCESS): Turn off for MIPS16.
+
+2007-04-28 Jan Hubicka <jh@suse.cz>
+
+ * config/alpha/alpha.c (alpha_output_mi_thunk_osf): Use
+ insn_locators_alloc instead of insn_locators_initialize;
+ call reset_block_changes.
+ * config/sparc/sparc.c (sparc_output_mi_thunk): Likewise.
+ * config/sh/sh.c (sparc_output_mi_thunk): Likewise.
+ * config/is64/ia64.c (ia64_output_mi_thunk): Likewise.
+ * config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
+ * config/score/score.c (th_output_mi_thunk): Likewise.
+ * config/mips/mips.c (mips_output_mi_thunk): Likewise.
+ * cfglyaout.c (set_curr_insn_source_location, set_curr_insn_block):
+ tolerate uninitialized locator info.
+
+ Re-apply:
+ * function.c (init_function_start): Don't init line number info.
+ (expand_function_end): Update.
+ (reset_block_changes, record_block_change, finalize_block_changes,
+ check_block_change, free_block_changes): Kill.
+ * function.h (reset_block_changes, record_block_change,
+ finalize_block_changes, check_block_change, free_block_changes): Remove
+ prototypes.
+ (struct function): Remove ib_boundaries_block.
+ * emit-rtl.c (make_insn_raw, make_jump_insn_raw, make_call_insn_raw):
+ Use curr_insn_locator to initialize locator.
+ (emit_line_note): Remove.
+ * cfgexpand.c (expand_gimple_cond_expr): Update.
+ (construct_exit_block): Likewise.
+ (tree_expand_cfg): Initialize/finalize locators.
+ * expr.c (expand_expr_real): Update.
+ * cfglayout.c (line_locators_locs, line_locators_lines,
+ file_locators_locs, file_locators_files): Remove.
+ (set_block_levels): Move to cfgexpand.c.
+ (insn_locators_initialize): Remove.
+ (pass_insn_locators_initialize): Remove.
+ (locations_locators_locs, locations_locators_vals): New static vars.
+ (curr_location, last_location, curr_block, last_block, curr_rtl_loc):
+ Likewise.
+ (insn_locators_alloc, insn_locators_finalize,
+ set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
+ New functions.
+ (locator_location): New.
+ (locator_line, locator_file): Rewrite.
+ * rtl.h (emit_line_note): Kill.
+ (insn_locators_alloc, insn_locators_finalize,
+ set_curr_insn_source_location, set_curr_insn_block, curr_insn_locator):
+ Declare.
+ * tree-inline.c (initialize_cfun): Do not initialize
+ ib_boundaries_block.
+ * passes.c (pass_insn_locators_initialize): Remove.
+
+2007-04-28 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-cfg.c (move_block_to_fn): Release bb from dominance
+ info. Update last_basic_block correctly.
+
+2007-04-27 Kaz Kojima <kkojima@gcc.gnu.org>
+
+ PR target/31701
+ * config/sh/sh.c (output_stack_adjust): Avoid using the frame
+ register itself to hold the offset constant. Tell flow the use
+ of r4 and r5 when they are used.
+
+2007-04-27 Richard Guenther <rguenther@suse.de>
+
+ * tree-ssa-forwprop.c (forward_propagate_into_cond): Keep track
+ if we simplified anything.
+ (tree_ssa_forward_propagate_single_use_vars): Defer overflow
+ warnings until we did a simplification and the stmt was not
+ marked as TREE_NO_WARNING.
+
+2007-04-27 Mike Stump <mrs@apple.com>
+
+ * config/rs6000/darwin.h (ALWAYS_PUSH_CONSTS_USING_REGS_P): Remove.
+
+2007-04-27 Ian Lance Taylor <iant@google.com>
+
+ PR middle-end/31710
+ * tree.c (build_distinct_type_copy): If TYPE_MIN_VALUE or
+ TYPE_MAX_VALUE exist, convert them to the new type.
+
+2007-04-27 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-cfgcleanup.c (cleanup_tree_cfg): Verify dominance info
+ if it claims to be available.
+ * tree-ssa-dce.c (remove_dead_stmt): Mark cfg as altered when
+ edge is redirected.
+ (perform_tree_ssa_dce): Always free postdominators.
+
+2007-04-27 Richard Henderson <rth@redhat.com>
+
+ * config/alpha/predicates.md (aligned_memory_operand): Mark
+ as define_special_predicate.
+ (unaligned_memory_operand, normal_memory_operand): Likewise.
+ (reg_or_unaligned_mem_operand): Remove.
+ (any_memory_operand): Match the documentation and check for
+ non-renumbered pseudos during reload.
+ * config/alpha/alpha.c (alpha_secondary_reload): Rename from
+ alpha_secondary_reload_class, update to new interface, make static.
+ Handle CQImode like HImode. Remove FP subreg check.
+ (alpha_expand_mov): Use replace_equiv_address.
+ (alpha_expand_mov_nobwx): Use any_memory_operand.
+ (TARGET_SECONDARY_RELOAD): New.
+ * config/alpha/alpha.h (SECONDARY_INPUT_RELOAD_CLASS): Remove.
+ (SECONDARY_OUTPUT_RELOAD_CLASS): Remove.
+ * config/alpha/sync.md (I12MODE, I48MODE, modesuffix): Move ...
+ * config/alpha/alpha.md: ... here.
+ (RELOAD12, reloadmode): New.
+ (movcqi): New.
+ (reload_in<RELOAD12>): Macro-ize from reload_inqi, reload_inhi.
+ Don't handle the aligned case here.
+ (reload_out<RELOAD12>): Macro-ize from reload_outqi, reload_outhi.
+ (reload_in<I12MODE>_aligned): Macro-ize from reload_inqi_help,
+ reload_inhi_help. Don't expect a scratch register.
+ (reload_out<I12MODE>_aligned): Macro-ize from reload_outqi_help,
+ reload_outhi_help.
+ * config/alpha/alpha-protos.h (alpha_secondary_reload_class): Remove.
+
+2007-04-27 Richard Guenther <rguenther@suse.de>
+
+ * tree-ssa-forwprop.c (get_prop_dest_stmt): Fix comment typo.
+
+2007-04-27 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/30965
+ PR tree-optimization/30978
+ * Makefile.in (tree-ssa-forwprop.o): Depend on $(FLAGS_H).
+ * tree-ssa-forwprop.c (forward_propagate_into_cond_1): Remove.
+ (find_equivalent_equality_comparison): Likewise.
+ (simplify_cond): Likewise.
+ (get_prop_source_stmt): New helper.
+ (get_prop_dest_stmt): Likewise.
+ (can_propagate_from): Likewise.
+ (remove_prop_source_from_use): Likewise.
+ (combine_cond_expr_cond): Likewise.
+ (forward_propagate_comparison): New function.
+ (forward_propagate_into_cond): Rewrite to use fold for
+ tree combining.
+ (tree_ssa_forward_propagate_single_use_vars): Call
+ forward_propagate_comparison to propagate comparisons.
+
+2007-04-27 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/31715
+ * tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Make
+ sure to do computation on the offset in an appropriate
+ signed type.
+
+2007-04-27 Richard Sandiford <richard@codesourcery.com>
+
+ * reload.h (elimination_target_reg_p): Declare.
+ * reload.c (find_reloads): Don't apply the reg_rtx move
+ optimization if the SET_DEST satisfies elimination_target_reg_p.
+ * reload1.c (elimination_target_reg_p): New function.
+ (gen_reload): In the move/add2 fallback, make sure that op0
+ does not overlap the destination register.
+
+2007-04-27 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-ssa-loop-im.c (determine_invariantness_stmt): Attempt to
+ transform only GIMPLE_MODIFY_STMTs.
+ * tree-complex.c (expand_complex_operations_1): Ditto.
+ (expand_complex_div_wide): Do not create gotos in COND_EXPR branches.
+ * tree-ssa-loop-manip.c (build_if_stmt): Removed.
+ (tree_transform_and_unroll_loop): Do not create gotos in COND_EXPR
+ branches.
+ * value-prof.c (tree_divmod_fixed_value, tree_mod_pow2,
+ tree_mod_subtract, tree_ic, tree_stringop_fixed_value): Ditto.
+ * omp-low.c (expand_parallel_call, expand_omp_for_generic,
+ expand_omp_for_static_chunk, expand_omp_for_static_nochunk): Ditto.
+ * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes,
+ slpeel_add_loop_guard): Ditto.
+ * tree-mudflap.c (mf_build_check_statement_for): Ditto.
+ * lambda-code.c (perfect_nestify): Ditto.
+ * tree-iterator.c (tsi_split_statement_list_before): Fix splitting
+ before the first statement.
+ * tree-optimize.c (execute_free_datastructures): Fix comments.
+ (execute_free_cfg_annotations): Do not call disband_implicit_edges.
+ * tree-flow.h (disband_implicit_edges): Declaration removed.
+ * tree-cfg.c (make_cond_expr_edges): Remove gotos from COND_EXPR
+ branches.
+ (cleanup_dead_labels, tree_redirect_edge_and_branch): Handle COND_EXPRs
+ without gotos.
+ (disband_implicit_edges, has_label_p): Removed.
+ (tree_verify_flow_info): Verify that COND_EXPR branches are empty.
+ (tree_lv_add_condition_to_bb): Do not create gotos in COND_EXPR
+ branches.
+ * tree.c (build3_stat): Mark COND_EXPRs used as statements as having
+ side effects.
+ * tree-pretty-print.c (dump_implicit_edges): Dump implicit edges
+ also for COND_EXPRs.
+ * cfgexpand.c (label_rtx_for_bb): New function.
+ (expand_gimple_cond_expr): Do not expect gotos in COND_EXPR branches.
+ Use label_rtx_for_bb to find the labels.
+ (expand_gimple_basic_block): Remove RETURN_EXPR at the end of the
+ last block. Detect fallthru edges.
+
+2007-04-26 Ian Lance Taylor <iant@google.com>
+
+ PR target/28675
+ * reload.c (find_reloads_subreg_address): If the address was valid
+ in the original mode but not in the new mode, reload the whole
+ address.
+
+2007-04-27 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-cfgcleanup.c (cfgcleanup_altered_bbs): New global variable.
+ (remove_fallthru_edge): Use remove_edge_and_dominated_blocks.
+ (cleanup_control_expr_graph): Do not invalidate dominance info.
+ Record altered blocks.
+ (cleanup_control_flow, cleanup_forwarder_blocks): Removed.
+ (cleanup_control_flow_bb, split_bbs_on_noreturn_calls,
+ cleanup_tree_cfg_bb): New functions.
+ (remove_forwarder_block): Do not maintain the worklist of blocks.
+ Record altered blocks.
+ (cleanup_tree_cfg_1): Iterate over cfgcleanup_altered_bbs,
+ not over whole cfg.
+ (cleanup_tree_cfg): Do not iterate cleanup_tree_cfg_1. Only call
+ delete_unreachable_blocks if dominators are not available.
+ * tree-inline.c (optimize_inline_calls): Free dominance information
+ earlier.
+ * tree-flow.h (remove_edge_and_dominated_blocks,
+ cfgcleanup_altered_bbs): Altered.
+ * tree-cfg.c (replace_uses_by, tree_merge_blocks): Record altered
+ blocks.
+ (get_all_dominated_blocks, remove_edge_and_dominated_blocks): New
+ functions.
+ (tree_purge_dead_eh_edges): Use remove_edge_and_dominated_blocks,
+ do not invalidate dominators.
+
+2007-04-26 Anatoly Sokolov <aesok@post.ru>
+
+ * config/avr/avr.c (avr_mcu_types): Add support for ATmega8HVA and
+ ATmega16HVA devices. Move AT90USB82 device to 'avr5' architecture.
+ * config/avr/avr.h (LINK_SPEC, CRT_BINUTILS_SPECS): (Ditto.).
+ * config/avr/t-avr (MULTILIB_MATCHES): (Ditto.).
+
+2007-04-26 Steve Ellcey <sje@cup.hp.com>
+
+ * config/ia64/ia64.md (ip_value): Fix itanium_class attribute.
+
+2007-04-26 Richard Guenther <rguenther@suse.de>
+
+ PR tree-optimization/31703
+ * tree-ssa-loop-im.c (rewrite_bittest): Make sure to use
+ the right type for the target of the bittest.
+
+2007-04-26 Richard Sandiford <richard@codesourcery.com>
+
+ * config/i386/vx-common.h (RETURN_IN_MEMORY): Use
+ ix86_sol10_return_in_memory.
+
+2007-04-26 Richard Sandiford <richard@codesourcery.com>
+
+ * config/i386/i386.c (ix86_sol10_return_in_memory): Remove unused
+ variables.
+
2007-04-26 Jakub Jelinek <jakub@redhat.com>
+ PR c++/31598
+ * tree-inline.c (copy_body_r): Don't touch TREE_TYPE of OMP_CLAUSE.
+
PR tree-optimization/30558
* tree-eh.c (lower_eh_filter): If EH_FILTER_MUST_NOT_THROW
clear this_state.prev_try.