path: root/gcc/ChangeLog

2008-01-24  H.J. Lu  <hongjiu.lu@intel.com>

	PR driver/34904
	* gcc.c (SWITCH_OK): Removed.
	(SWITCH_LIVE): Changed to bit.
	(SWITCH_FALSE): Likewise.
	(SWITCH_IGNORE): Likewise.
	(switchstr): Change live_cond to unsigned int.
	(process_command): Replace SWITCH_OK with 0.
	(do_self_spec): Likewise.
	(set_collect_gcc_options): Check the SWITCH_IGNORE bit.
	(give_switch): Likewise.
	(used_arg): Likewise.
	(do_spec_1): Set the SWITCH_IGNORE bit.
	(check_live_switch): Check both SWITCH_LIVE and SWITCH_FALSE
	bits.  Set the SWITCH_LIVE bit.

2008-01-24  Andreas Krebbel  <krebbel1@de.ibm.com>

	* config/s390/s390.h (MOVE_RATIO): Define new target macro.

2008-01-24  Richard Sandiford  <rsandifo@nildram.co.uk>

	PR tree-optimization/34472
	* ipa-struct-reorg.c (safe_cond_expr_check): Change the DATA
	parameter to a "bool *" and set *DATA to false if there is
	an unsafe access.  Do not delete the structure here.
	(check_cond_exprs): Delete it here instead.
	(check_cond_exprs, exclude_cold_structs): Do not increase
	I when removing a structure.

2008-01-24  Uros Bizjak  <ubizjak@gmail.com>

	PR target/34856
	* config/i386/i386.c (ix86_expand_vector_init): Consider only
	CONST_INT, CONST_DOUBLE and CONST_FIXED as constant vector elements.

2008-01-24  Jakub Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/34934
	* tree-stdarg.c (reachable_at_most_once): Use VEC vector instead of
	a fixed vector for stack.

2008-01-24  Ben Elliston  <bje@au.ibm.com>

	PR c++/25701
	* doc/gcc.texi (Software development): Add a direntry for g++.
	
2008-01-23  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.h (CC1PLUS_SPEC, OPTIMIZATION_OPTIONS): Drop
	stale and straggling -fforce-addr comments above.

	* config/cris/cris.h (CRIS_SUBTARGET_VERSION, TARGET_VERSION): Don't
	define.
	* config/cris/linux.h (CRIS_SUBTARGET_VERSION): Don't define.
	* config/cris/aout.h (CRIS_SUBTARGET_VERSION): Don't define.

2008-01-23  Michael Matz  <matz@suse.de>

	PR debug/34895
	* dwarf2out.c (force_type_die): Use modified_type_die instead of
	gen_type_die.

2008-01-23  Andreas Krebbel  <krebbel1@de.ibm.com>

	* ipa-struct-reorg.c (create_new_malloc): Use pointer type as
	malloc result type.

2008-01-23 Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (avr_current_arch): New variable.
	(avr_arch_types): Add 'avr31' and 'avr51' entries.
	(avr_arch): Add 'ARCH_AVR31' and 'ARCH_AVR51'.
	(avr_mcu_types): Add 'avr31' and 'avr51' architectures.
	(avr_override_options): Init 'avr_current_arch'. 
	(base_arch_s): Move from here...
	* config/avr/avr.h (base_arch_s): ... here. Add new members 
	'have_elpm', 'have_elpmx', 'have_eijmp_eicall', 'reserved'. Rename 
	'mega' to 'have_jmp_call'.
	(TARGET_CPU_CPP_BUILTINS): Define "__AVR_HAVE_JMP_CALL__", 
	"__AVR_HAVE_RAMPZ__", 	"__AVR_HAVE_ELPM__" and  "__AVR_HAVE_ELPMX__"
	macros.
	(LINK_SPEC, CRT_BINUTILS_SPECS, ASM_SPEC): Add 'avr31' and 'avr51' 
	architectures.
	* config/avr/t-avr (MULTILIB_OPTIONS, MULTILIB_DIRNAMES, 
	MULTILIB_MATCHES): (Ditto.).

2008-01-23  Richard Guenther  <rguenther@suse.de>

	PR middle-end/31529
	* cgraphunit.c (cgraph_reset_node): Always mark the node
	not reachable if it is not queued already.

2008-01-23  Bernd Schmidt  <bernd.schmidt@analog.com>

	* config/bfin/bfin-protos.h (WA_RETS, ENABLE_WA_RETS): New macros.
	* config/bfin/bfin.c (bfin_cpus): Add WA_RETS everywhere.
	(cputype_selected): New static variable.
	(bfin_handle_option): Set it if -mcpu is used.
	(override_option): Select default set of workarounds if no cpu type
	selected on the command line.
	(workaround_rts_anomaly): Only run if ENABLE_WA_RETS.

	From  Michael Frysinger  <michael.frysinger@analog.com>
	* config/bfin/bfin-protos.h (enum bfin_cpu_type): Add
	BFIN_CPU_BF547, BFIN_CPU_BF523, BFIN_CPU_BF524, and BFIN_CPU_BF526.

	* config/bfin/elf.h (LIB_SPEC): Use proper linker script
	for bf547, bf523, bf524, and bf526.
	* config/bfin/bfin.c (bfin_cpus[]): Add bf547,  bf523, bf524, and
	bf526.
	* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define
	__ADSPBF523__ for bf523, __ADSPBF524__ for bf524,
	__ADSPBF526__ for bf526, __ADSPBF52x__ for all three, as well as
	__ADSPBF547__ and __ADSPBF54x__ for bf547.
	* doc/invoke.texi (Blackfin Options): Document that
	-mcpu now accept bf547, bf523, bf524, and bf526.

2008-01-22  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/34628
	* combine.c (try_combine): Stop and undo after the first combination
	if an autoincrement side-effect on the first insn has effectively
	been lost.

2008-01-22  David Edelsohn  <edelsohn@gnu.org>

	PR target/34529
	* config/rs6000/rs6000.c (rs6000_legitimate_offset_address_p):
	Offset addresses are not valid for Altivec or paired float modes.

2008-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR c++/34607
	* c-parser.c (c_parser_omp_for_loop): Don't call c_finish_omp_for
	if DECL_INITIAL (decl) is error_mark_node.

	PR c++/34914
	* c-common.c (handle_vector_size_attribute): Only allow
	integral, scalar float and fixed point types.  Handle OFFSET_TYPE
	the same way as pointer, array etc. types.
	* tree.c (reconstruct_complex_type): Handle OFFSET_TYPE.

	PR c++/34917
	* tree.c (build_type_attribute_qual_variant): Call
	build_qualified_type if attributes are equal, but quals are not.

2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR 32102
	* doc/invoke.texi (-Wall): -Wall enables -Wstrict-overflow=1.
	* flags.h (warn_strict_aliasing): Remove.
	(warn_strict_overflow): Remove.
	* opts.c (warn_strict_aliasing): Remove.
	(warn_strict_overflow): Remove.
	* c-opts.c (c_common_handle_option): -Wall only sets
	-Wstrict-aliasing or -Wstrict-overflow if they are uninitialized.
	(c_common_post_options): Give default values to -Wstrict-aliasing
	and -Wstrict-overflow if they are uninitialized.
	* common.opt (Wstrict-aliasing): Specify Var and Init.
	(Wstrict-overflow): Likewise.

2008-01-22  Kenneth Zadeck <zadeck@naturalbridge.com>

	PR rtl-optimization/26854
	PR rtl-optimization/34400
	PR rtl-optimization/34884
	* ddg.c (create_ddg_dep_from_intra_loop_link): Use
	DF_RD->gen.
	* df.h (df_changeable_flags.DF_RD_NO_TRIM): Deleted
	(df_rd_bb_info.expanded_lr_out): Deleted
	* loop_invariant.c (find_defs): Deleted DF_RD_NO_TRIM flag.
	* loop_iv.c (iv_analysis_loop_init): Ditto.  * df-problems.c
	(df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
	df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
	Removed code to allocate, initialize or free expanded_lr_out.
	(df_rd_bb_local_compute_process_def): Restructured to make more
	understandable.
	(df_rd_confluence_n): Removed code to no apply invalidate_by_call
	sets if the sets are being trimmed.

2008-01-22  H.J. Lu  <hongjiu.lu@intel.com>

	PR bootstrap/32287
	* configure.ac (ld_vers): Support GNU linker version xx.xx.*
	(as_vers): Likewise.
	* configure: Regenerated.

2008-01-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/33092
	* tree-pass.h (pass_build_alias): New pass.
	* tree-ssa-alias.c (gate_build_alias): New.
	(pass_build_alias): New.
	* passes.c (init_optimization_passes): Add pass_build_alias after
	pass_create_structure_vars.

2008-01-22  Wolfgang Gellerich  <gellerich@de.ibm.com>

	* config/s390/s390.h (S390_TDC_POSITIVE_NORMALIZED_NUMBER):
	Renamed to S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER.
	(S390_TDC_NEGATIVE_NORMALIZED_NUMBER): Renamed to
	S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER.
	(S390_TDC_POSITIVE_DENORMALIZED_NUMBER): Renamed to
	S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER.
	(S390_TDC_NEGATIVE_DENORMALIZED_NUMBER): Renamed to
	S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER.
	(S390_TDC_POSITIVE_NORMALIZED_BFP_NUMBER): New constant.
	(S390_TDC_NEGATIVE_NORMALIZED_BFP_NUMBER): New constant.
	(S390_TDC_POSITIVE_DENORMALIZED_BFP_NUMBER): New constant.
	(S390_TDC_NEGATIVE_DENORMALIZED_BFP_NUMBER): New constant.
	* config/s390/s390.md (FP_ALL): New mode iterator.
	(_d): New mode attribute.
	("*signbit<mode>2>"): Changed mode of first operand.
	("isinf<mode>2"): Changed mode of first operand.
	("*TDC_insn"): Adaptation for DFP modes.

2008-01-22  Ben Elliston  <bje@au.ibm.com>

	* tree.c (check_qualified_type): Improve function description.

2008-01-21  Jason Merrill  <jason@redhat.com>

	PR c++/34196
	* tree.h (TRY_CATCH_IS_CLEANUP): New macro.
	* tree-eh.c (honor_protect_cleanup_actions): Strip TRY_CATCH_EXPR
	if it is set.

2008-01-21  DJ Delorie  <dj@redhat.com>

	* doc/tm.texi (HARD_REGNO_NREGS): Note that this macro must not
	return zero.

2008-01-21  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34856
	* tree-cfg.c (verify_expr): Allow all invariant expressions
	instead of just constant class ones as reference argument.
	* tree-ssa-loop-im.c (for_each_index): Handle CONSTRUCTOR
	like any other constant.
	* tree-ssa-sccvn.c (copy_reference_ops_from_ref): Likewise.

2008-01-21  H.J. Lu  <hongjiu.lu@intel.com>

	* regmove.c (fixup_match_1): Update call crossed frequencies.

2008-01-21  Richard Guenther  <rguenther@suse.de>

	PR c/34885
	* tree-inline.c (setup_one_parameter): Deal with mismatched
	types using a VIEW_CONVERT_EXPR.

2008-01-21  Alon Dayan  <alond@il.ibm.com>
	    Olga Golovanevsky  <olga@il.ibm.com>
	
	PR tree-optimization/34701
	* ipa-struct-reorg.c (gen_size): Fix the malloc parameter calculation
	when the structure size is not a power of 2.

2008-01-20  Kenneth Zadeck <zadeck@naturalbridge.com>

	* doc/install.texi: Add doc for --enable-checking=df.
	
2008-01-20  Kaz Kojima  <kkojima@gcc.gnu.org>

	PR rtl-optimization/34808
	* emit-rtl.c (try_split): Handle REG_RETVAL notes.

2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>

	* global.c (find_reg): Only compute EH_RETURN_DATA_REGNO once per
	input.

2008-01-19  Kenneth Zadeck <zadeck@naturalbridge.com>

	PR rtl-optimization/26854
	PR rtl-optimization/34400
	* ddg.c (create_ddg_dep_from_intra_loop_link): Do not use
	DF_RD->gen.
	* df.h (df_changeable_flags.DF_RD_NO_TRIM): New.
	(df_rd_bb_info.expanded_lr_out): New.
	* loop_invariant.c (find_defs): Added DF_RD_NO_TRIM flag.
	* loop_iv.c (iv_analysis_loop_init): Ditto.
	* df-problems.c (df_rd_free_bb_info, df_rd_alloc, df_rd_confluence_n,
	df_rd_bb_local_compute, df_rd_transfer_function, df_rd_free):
	Added code to allocate, initialize or free expanded_lr_out.
	(df_rd_bb_local_compute_process_def): Restructured to make
	more understandable.
	(df_rd_confluence_n): Add code to do nothing with fake edges and
	code to no apply invalidate_by_call sets if the sets are being trimmed.
	(df_lr_local_finalize): Renamed to df_lr_finalize.
	(df_live_local_finalize): Renamed to df_live_finalize.

2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>

	PR target/34831
	* config/mips/mips.md (div<mode>3): Use <recip_condition> when
	deciding whether to use reciprocal instructions.

2008-01-19  Uros Bizjak  <ubizjak@gmail.com>

	* dwarf2out.c (dwarf2out_switch_text_section): Do not call
	dwarf2out_note_section_used if cold_text_section is NULL.

2008-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR gcov-profile/34610
	* tree-cfg.c (make_edges): Mark both outgoing edges from
	OMP_CONTINUE and from OMP_FOR as EDGE_ABNORMAL.
	* omp-low.c (expand_omp_for): Clear EDGE_ABNORMAL bits
	from OMP_FOR and OMP_CONTINUE outgoing edges.

	* tree-profile.c (tree_profiling): Return early if
	cfun->after_tree_profile != 0.  Set cfun->after_tree_profile
	at the end.
	* omp-low.c (expand_omp_parallel): Copy after_tree_profile
	from cfun to child_cfun.
	* function.h (struct function): Add after_tree_profile bit.

2008-01-19 Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.S (_exit): Disable interrupt.

2008-01-18  Kenneth Zadeck  <zadeck@naturalbridge.com>
	    Steven Bosscher  <stevenb.gcc@gmail.com>

	PR rtl-optimization/26854
	PR rtl-optimization/34400
	* df-problems.c (df_live_scratch): New scratch bitmap.
	(df_live_alloc): Allocate df_live_scratch when doing df_live.
	(df_live_reset): Clear the proper bitmaps.
	(df_live_bb_local_compute): Only process the artificial defs once
	since the order is not important.
	(df_live_init): Init the df_live sets only with the variables
	found live by df_lr.
	(df_live_transfer_function): Use the df_lr sets to prune the
	df_live sets as they are being computed.  
	(df_live_free): Free df_live_scratch.

2008-01-18  Ian Lance Taylor  <iant@google.com>

	* common.opt: Add fmerge-debug-strings.
	* dwarf2out.c (DEBUG_STR_SECTION_FLAGS): Test
	flag_merge_debug_strings rather than flag_merge_constants.
	* doc/invoke.texi (Option Summary): Mention
	-fmerge-debug-strings.
	(Debugging Options): Document -fmerge-debug-strings.

2008-01-18  Ian Lance Taylor  <iant@google.com>

	PR c++/33407
	* tree.h (DECL_IS_OPERATOR_NEW): Define.
	(struct tree_function_decl): Add new field operator_new_flag.
	* tree-inline.c (expand_call_inline): When inlining a call to
	operator new, force the return value to go into a variable, and
	set DECL_NO_TBAA_P on that variable.
	* c-decl.c (merge_decls): Merge DECL_IS_OPERATOR_NEW flag.

2008-01-18  Uros Bizjak  <ubizjak@gmail.com>

	PR debug/34484
	* dwarf2out.c (dwarf2out_switch_text_section): Do not guard with
	DWARF2_DEBUGGING_INFO.
	(dwarf2out_note_section_used): Ditto.  Add prototype.
	(have_multiple_function_sections, text_section_used,
	cold_text_section_used, *cold_text_sections): Move declarations
	before their uses.

2007-01-17  Bob Wilson  <bob.wilson@acm.org>

	* config/xtensa/unwind-dw2-xtensa.h (_Unwind_FrameState): Remove pc
	field and add signal_ra.
	* config/xtensa/unwind-dw2-xtensa.c (uw_frame_state_for): Remove
	assignments to frame state pc.  Move end of stack check after
	MD_FALLBACK_FRAME_STATE_FOR.
	(uw_update_context_1): Use frame state signal_regs if set, instead
	of checking signal_frame flag.
	(uw_update_context): Use frame state signal_ra if set.
	* config/xtensa/linux.h (MD_UNWIND_SUPPORT): Define.
	* config/xtensa/linux-unwind.h: New file.

2007-01-18  Bernhard Fischer  <aldot@gcc.gnu.org>

	* modulo-sched.c (get_sched_window): Fix comment typo.

2008-01-17  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/34648
	* tree-ssa-sccvn.c (visit_use): Expressions which can throw are varying.

2008-01-17  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.h (LINK_SPEC): Support -mrelax and -mpmem-wrap-around.
	* config/avr/avr.opt (mrelax, mpmem-wrap-around): Add.

2008-01-17  Seongbae Park  <seongbae.park@gmail.com>

	PR rtl-optimization/34400
	* df-core.c (df_worklist_dataflow_overeager,
	df_worklist_dataflow_doublequeue): New functions.
	(df_worklist_dataflow): Two different worklist solvers.
	* params.def (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR):
	New param.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

	PR testsuite/34821
	* doc/invoke.texi: Document the dependence on pthread for fopenmp
	and ftree-parallelize-loops.

2008-01-17  Mircea Namolaru  <namolaru@il.ibm.com>

	PR rtl-optimization/34826
	* loop-doloop (doloop_modify): Update the REG_BR_PROB note.

2008-01-17  Andreas Krebbel  <krebbel1@de.ibm.com>

	* global.c (find_reg): Mark the eh regs as used if necessary.
	* ra-conflict.c (global_conflicts): Set no_eh_reg flag.
	* ra.h (struct allocno): no_eh_reg field added.  Changed
	no_stack_reg type to bitfield.

2008-01-17  Eric Botcazou  <ebotcazou@adacore.com>

	* tree.c (substitute_in_expr): Add missing 'break'.

2008-01-17  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34825
	* tree-ssa-math-opts.c (is_division_by): Do not recognize
	x / x as division to handle.

2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	* pa64-hpux.h (LIB_SPEC): Add "-lpthread" in shared links if "-mt" or
	"-pthread" is specified.
	* pa-hpux11.h (LIB_SPEC): Likewise.

2007-01-16  Janis Johnson  <janis187@us.ibm.com>
	    Peter Bergner  <bergner@vnet.ibm.com>

	PR rtl-optimization/33796
	* sparseset.c (sparseset_alloc): Use xcalloc rather than xmalloc.

2008-01-16  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR libgfortran/34699
	* pa-hpux.h (LINK_SPEC): Only search /lib/pa1.1 and /usr/lib/pa1.1 on
	static links.
	* pa-hpux10.h (LINK_SPEC): Likewise.
	* pa-hpux11.h (LINK_SPEC): Don't search /lib/pa1.1 and /usr/lib/pa1.1.

2008-01-16  Richard Guenther  <rguenther@suse.de>

	PR middle-end/32628
	* fold-const.c (fold_convert_const_int_from_int): Do not
	set overflow if that occured only because of a sign extension
	change when converting from/to a sizetype with the same
	precision and signedness.

2008-01-16  Uros Bizjak  <ubizjak@gmail.com>

	PR debug/34249
	* dwarf2out.c (output_call_frame_info): Move output of FDE initial
	location address to the correct place.  Update copyright year.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

	* lambda-code.c (lambda_transform_legal_p): Handle the case of
	no dependences in the dependence_relations vector.

2008-01-16  Jan Hubicka  <jh@suse.cz>

	PR rtl-optimization/31396
	* regstat.c (regstat_bb_compute_ri): Compute FREQ_CALLS_CROSSED.
	* cfg.c (dump_reg_info): Print it.
	* regs.h (struct reg_info_t): add freq_calls_crossed.
	(REG_FREQ_CALLS_CROSSED): New macro.
	* global.c (global_alloc): Compute freq_calls_crossed for allocno.
	(find_reg): Update call of CALLER_SAVE_PROFITABLE.
	* regmove.c (optimize_reg_copy_1, optimize_reg_copy_2, fixup_match_2,
	regmove_optimize): Update call crossed frequencies.
	* local-alloc.c (struct qty): Add freq_calls_crossed.
	(alloc_qty): Copute freq_calls_crossed.
	(update_equiv_regs, combine_regs): Update REG_FREQ_CALLS_CROSSED.
	(find_free_reg): Update call of CALLER_SAVE_PROFITABLE.
	* ra.h (struct allocno): Add freq_calls_crossed.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

	* gcc.c (LINK_COMMAND_SPEC): Add includes and link options for
	libgomp when compiling with ftree-parallelize-loops.
	(GOMP_SELF_SPECS): Add -pthread for ftree-parallelize-loops.

2008-01-16  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34769
	* tree-data-ref.c (initialize_matrix_A): Revert fix for PR34458.
	* tree.c (int_cst_value): Instead make this function more
	permissive in what it accepts as valid input.  Document this
	function always sign-extends the value.

2008-01-16  Jakub Jelinek  <jakub@redhat.com>
	    Richard Guenther  <rguenther@suse.de>

	PR c/34668
	* gimplify.c (fold_indirect_ref_rhs): Rename to ...
	(gimple_fold_indirect_ref_rhs): ... this.
	(gimple_fold_indirect_ref): New function with foldings
	that preserve lvalueness.
	(gimplify_modify_expr_rhs): Call gimple_fold_indirect_ref_rhs.
	* tree-flow.h (gimple_fold_indirect_ref): Declare.
	* tree-inline.c (copy_body_r): Use gimple_fold_indirect_ref
	to fold an INDIRECT_REF, fall back to the old use of
	fold_indirect_ref_1.

2008-01-16  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-data-ref.c (subscript_dependence_tester_1): Call 
	free_conflict_function.
	(compute_self_dependence): Same.

2008-01-16  Uros Bizjak  <ubizjak@gmail.com>

	PR debug/34249
	* debug.h (dwarf2out_switch_text_section): Move declaration from ...
	* dwarf2out.c (dwarf2out_switch_text_section): ... here.  Make
	function global.
	* final.c (final_scan_insn) [NOTE_INSN_SWITCH_TEXT_SECTIONS]:
	Depending on dwarf2out_do_frame, call dwarf2out_switch_text_section
	for DWARF2_UNWIND_INFO targets.

2008-01-16  Richard Guenther  <rguenther@suse.de>

	PR c/34768
	* c-typeck.c (common_pointer_type): Do not merge inconsistent
	type qualifiers for function types.

2008-01-15  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* tree-parloops.c (gen_parallel_loop): Fix ommision of declaration for
	loop_iterator li from previous commit.

2008-01-15  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-parloops.c (gen_parallel_loop): Free loop bound estimations.

2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-parloops.c (loop_has_blocks_with_irreducible_flag): New.
	(parallelize_loops): Don't parallelize irreducible components.

2008-01-14  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR c++/24924
	* c-opts (c_common_post_options): Do not enable CPP
	flag_pedantic_errors by default.
	
2008-01-14  Eric Botcazou  <ebotcazou@adacore.com>

	PR rtl-optimization/31944
	* cse.c (remove_pseudo_from_table): New function.
	(merge_equiv_classes): Use above function to remove pseudo-registers.
	(invalidate): Likewise.

2008-01-13  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34601
	* emit-rtl.c (set_reg_attrs_for_decl_rtl): Use DECL_MODE
	instead of TYPE_MODE to deal with calls from expand_one_error_var.

2008-01-13  Uros Bizjak  <ubizjak@gmail.com>

	* gcse.c (cprop_jump): Call validate_unshare_change instead of
	validate_change to unshare the source of the PC set.

2008-01-12  Jan Hubicka  <jh@suse.cz>

	PR middle-end/32135
	* tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Do not construct
	references above array bounds.  This might trigger bounds checks for
	pointers to arrays.

2008-01-12  Sebastian Pop  <sebastian.pop@amd.com>

	* tree-ssa-ter.c (free_temp_expr_table): Free num_in_part and
	new_replaceable_dependencies.

2008-01-12  Doug Kwan  <dougkwan@google.com>

	* c-decl.c: (grokdeclarator): Use OPT_Wignored_qualifiers
	instead of OPT_Wreturn_type in warning due to ignored return type
	qualifiers.
	* c-opt.c (c_common_post_option): Add -Wignored-qualifiers to
	options included in -Wextra.
	* c.opt: New option -Wignored_qualifiers.
	* doc/invoke.texi (Warning Options, -Wextra): Add new option
	-Wignore_qualifiers.
	(-Wignored-qualifiers): Document.
	(-Wreturn-type): Remove description of functionality now handled
	by -Wignored-qualifiers.

2008-01-12  Eric Botcazou  <ebotcazou@adacore.com>

	PR ada/33788
	* fold-const.c (fold_unary) <VIEW_CONVERT_EXPR>: Fold an existing
	NOP_EXPR if it is between integral types with the same precision.

2008-01-12  Jan Hubicka  <jh@suse.cz>

	PR other/28023
	* invoke.texi (max-inline-recursive-depth): Fix default value.

2008-01-12  Zdenek Dvorak  <ook@ucw.cz>

	* tree-parloops.c (transform_to_exit_first_loop): Cast nit to the
	correct type.

2008-01-11  Bob Wilson  <bob.wilson@acm.org>
	
	* config/xtensa/xtensa.c (override_options): Set flag_shlib.
	
2008-01-11  James E. Wilson  <wilson@specifix.com>

	PR target/26015
	* config/vax/elf.h (FRAME_POINTER_CFA_OFFSET): Define.

2008-01-11  Anatoly Sokolov <aesok@post.ru>

	* config/avr/avr.c (expand_prologue, expand_epilogue): Don't 
	save/restore frame pointer register and don't use 'call-prologues' 
	optimization in function with "OS_task" attribute.

2008-01-11  Eric Botcazou  <ebotcazou@adacore.com>

	PR middle-end/31309
	* expr.c (copy_blkmode_from_reg): Use a mode suited to the size
	when copying to memory.

2008-01-11  Steven Bosscher  <stevenb.gcc@gmail.com>

	PR rtl-optimization/30905
	* cfgcleanup.c: Include dce.h
	(crossjumps_occured): New global variable.
	(try_crossjump_bb): Exit loop after finding a fallthru edge.
	If something changed, set crossjumps_occured to true.
	(try_optimize_cfg): Clear crossjumps_occured at the beginning.
	Don't add/remove fake edges to exit here...
	(cleanup_cfg): ...but do it here, when crossjumping.
	Run a fast DCE when successful crossjumps occured in the latest
	iteration of try_optimize_cfg.

2008-01-11  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-sccvn.c (struct vn_binary_op_s): Move hashcode near opcode.
	(struct vn_unary_op_s): Likewise.
	(vn_reference_insert): Free old reference on hash collision.

2008-01-10  Raksit Ashok  <raksit@google.com>

	PR rtl-optimization/27971
	* combine.c (find_split_point): Split PLUS expressions which are
	inside a MEM rtx, and whose first operand is complex.

2008-01-10  DJ Delorie  <dj@redhat.com>

	* config/m32c/m32c.c (m32c_hard_regno_nregs_1): Renamed from...
	(m32c_hard_regno_nregs): ...this, which is now a wrapper.
	(m32c_hard_regno_ok): Call the underlying function.

2008-01-10  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34683
	* tree-cfg.c (tree_merge_blocks): Do not go through the
	full-blown folding and stmt updating path if we just deal
	with virtual operands.
	* tree-ssa-copy.c (may_propagate_copy): Do not short-cut
	test for abnormal SSA_NAMEs.

2008-01-10  Andreas Krebbel  <krebbel1@de.ibm.com>

	PR middle-end/34641
	* reload.c (push_reload): Add assertions.  All constants from
	reg_equiv_constant should have been used for replacing the respective
	pseudo earlier.
	(find_reloads_address): Invoke find_reloads_address_part for
	constant taken from the reg_equiv_constant array.

2008-01-10  Steven Bosscher  <stevenb.gcc@gmail.com>

	* tree-ssa-sccvn.h (struct vn_ssa_aux): Make the most accessed
	field (valnum) the first in the struct.  Replace bools with
	unit bit fields.

2008-01-10  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34651
	* tree-sra.c (sra_build_assignment): Sanitize.  Use the correct
	types and ordering for masking and converting.

2008-01-09  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/34017
	* lambda-code.c (lambda_loopnest_to_gcc_loopnest): Generate code
	also for PHI_NODE expressions.

2008-01-09  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/34708
	* tree-inline.c (estimate_num_insns_1): Compute cost of SWITCH_EXPR
	based on number of case labels.
	(init_inline_once): Remove switch_cost.
	* tree-inline.h (eni_weights_d): Remove switch_cost.

2008-01-09  Richard Guenther  <rguenther@suse.de>
	Andrew Pinski  <andrew_pinski@playstation.sony.com>

	PR middle-end/30132
	* gimplify.c (gimplify_cond_expr): Do not create an addressable
	temporary if an rvalue is ok or an lvalue is not required.

2008-01-09  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34458
	* tree-data-ref.c (initialize_matrix_A): Use tree_low_cst,
	adjust return type.

2008-01-09  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34679
	* tree.c (host_integerp): Check for sizetype only if the
	type is an integer type.

2008-01-09  Steven Bosscher  <stevenb.gcc@gmail.com>

	PR debug/26364
	* opts.c (decode_options): Disable inlining of functions called
	once if not in unit-at-a-time mode.

2008-01-09  Alexandre Oliva  <aoliva@redhat.com>

	* Makefile.in (dse.o): Remove duplicate $(RECOG_H) dependency.

2008-01-08  Richard Guenther  <rguenther@suse.de>

	PR middle-end/31863
	* tree-ssa-structalias.c (push_fields_onto_fieldstack): Bail
	out early if the result will be unused.

2008-01-08  Uros Bizjak  <ubizjak@gmail.com>

	PR target/34709
	Revert:

	2008-01-05  Uros Bizjak  <ubizjak@gmail.com>
	* config/i386/i386.c (ix86_builtin_reciprocal): Remove check
	for TARGET_RECIP.	
	
2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
	
	* config/i386/i386.c (k8_cost, amdfam10_cost): Branch costs
	for vectorization tuned.
	
2008-01-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34683
	* tree-ssa-operands.c (operand_build_cmp): Export.
	* tree-ssa-operands.h (operand_build_cmp): Declare.
	* tree-vn.c (vuses_compare): Remove.
	(sort_vuses): Use operand_build_cmp.
	(sort_vuses_heap): Likewise.
	* tree-ssa-sccvn.c (vuses_to_vec): Use VEC_reserve, not VEC_alloc
	to re-use old VEC if available.  Do not sort already sorted VUSEs.
	(vdefs_to_vec): Do not sort already sorted VDEFs.

2008-01-08  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/34694
	* omp-low.c (copy_var_decl): Copy also DECL_SOURCE_LOCATION.

2008-01-08  Uros Bizjak  <ubizjak@gmail.com>

	PR target/34702
	* doc/invoke.texi (i386 and x86-64 Options) [mrecip]: Document
	limitations of reciprocal sequences on x86 targets.

2008-01-08  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34683
	* tree-flow-inline.h (var_ann): Remove overzealous asserts.

2008-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/34622
	* config/darwin.c (darwin_mergeable_string_section): Don't use
	.cstring if int_size_in_bytes != TREE_STRING_LENGTH.

2008-01-07  Uros Bizjak  <ubizjak@gmail.com>

	PR target/34682
	* config/i386/i386.md (neg<mode>2): Rename from negsf2, negdf2 and
	negxf2.  Macroize expander using X87MODEF mode iterator.  Change
	predicates of op0 and op1 to register_operand.
	(abs<mode>2): Rename from abssf2, absdf2 and negxf2.  Macroize
	expander using X87MODEF mode iterator.  Change predicates of
	op0 and op1 to register_operand.
	("*absneg<mode>2_mixed", "*absneg<mode>2_sse"): Rename from
	corresponding patterns and macroize using MODEF macro.  Change
	predicates of op0 and op1 to register_operand and remove
	"m" constraint. Disparage "r" alternative with "!".
	("*absneg<mode>2_i387"): Rename from corresponding patterns and
	macroize using X87MODEF macro.  Change predicates of op0 and op1
	to register_operand and remove "m" constraint.  Disparage "r"
	alternative with "!".
	(absneg splitter with memory operands): Remove.
	("*neg<mode>2_1", "*abs<mode>2_1"): Rename from corresponding
	patterns and macroize using X87MODEF mode iterator.
	* config/i386/sse.md (negv4sf2, absv4sf2, neg2vdf2, absv2df2):
	Change predicate of op1 to register_operand.
	* config/i386/i386.c (ix86_expand_fp_absneg_operator): Remove support
	for memory operands.

2008-01-07  Nathan Froyd  <froydnj@codesourcery.com>

	* config/rs6000/rs6000.h (ASM_CPU_SPEC): Add clause for mcpu=8548.

2008-01-07  Richard Guenther  <rguenther@suse.de>

	* basic-block.h (struct edge_def): Pair dest_idx with goto_locus
	fields.

2008-01-07  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/34683
	* tree-ssa-sccvn.c (vuses_to_vec): Pre-allocate the vector of
	VOPs of the needed size to save memory.  Use VEC_quick_push
	to save compile-time.
	(vdefs_to_vec): Likewise.

2008-01-07  Sa Liu  <saliu@de.ibm.com>

	* config/spu/spu.md (divdf3): Genetate inline code for double
	division.  The implementation doesn't handle INF or NAN, therefore it
	only applies when -ffinite-math-only is given.

2008-01-06  Paolo Carlini  <pcarlini@suse.de>

	PR libstdc++/34680
	* c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
	* doc/cpp.texi ([Common Predefined Macros]): Document.

2008-01-06  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
	order to use commutative addition instead of subtraction.

2008-01-06  Andrew Pinski  <andrew_pinski@playstation.sony.com>
	    Mircea Namolaru  <namolaru@il.ibm.com>
	    Vladimir Yanovsky  <yanov@il.ibm.com>
	    Revital Eres  <eres@il.ibm.com>

	PR tree-optimization/34263
	* tree-outof-ssa.c (process_single_block_loop_latch,
	contains_tree_r): New functions.
	(analyze_edges_for_bb): Call process_single_block_loop_latch
	function to empty single-basic-block latch block if possible.

2008-01-05  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.c (ix86_builtin_reciprocal): Remove check
	for TARGET_RECIP.
	(ix86_emit_swsqrtsf): Do not filter out infinity for rsqrt expansion.

2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>

	* c-omp.c (check_omp_for_incr_expr): Handle CONVERT_EXPR.

2008-01-05  Richard Sandiford  <rsandifo@nildram.co.uk>

	* config/mips/mips.c (mips_in_small_data_p): Reinstate size > 0 check.

2008-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/34618
	* tree-outof-ssa.c (create_temp): Copy over DECL_GIMPLE_REG_P
	flag from T.

2008-01-05  Uros Bizjak  <ubizjak@gmail.com>

	PR target/34673
	* config/i386/i386.c (ix86_emit_swsqrtsf): Swap input operands
	in the call to gen_rtx_NE.  Remove unneeded VECTOR_MODE_P check.
	Update copyright year.

	* config/i386/i386.md (rsqrtsf2): Enable for TARGET_SSE_MATH.
	Update copyright year.
	* config/i386/sse.md (rsqrtv4sf2): Ditto. Unconditionally expand
	using NR fixup.

2008-01-05  Zhouyi Zhou  <zhouzhouyi@FreeBSD.org>

	* tree-vrp.c (find_conditional_asserts): Remove redundant check that
	edge does not point to current bb before changing need_assert.

2008-01-04  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34029
	* tree-cfg.c (verify_expr): Do not look inside ADDR_EXPRs
	for verifying purposes if they are is_gimple_min_invariant.

2008-01-04  Aldy Hernandez  <aldyh@redhat.com>

	PR tree-optimization/34448
	PR tree-optimization/34465
	* gimplify.c (gimplify_init_constructor): Add new parameter
	notify_temp_creation.  Use it.
	(gimplify_modify_expr_rhs): Take volatiles into account when
	optimizing constructors.
	Do not optimize constructors if gimplify_init_constructor will dump to
	memory.
	* gcc.dg/tree-ssa/pr32901.c: Tests const volatiles.
	* gcc.c-torture/compile/pr34448.c: New.

2008-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR gcov-profile/34609
	* tree-inline.c (declare_return_variable): Set TREE_ADDRESSABLE on
	return_slot if result is TREE_ADDRESSABLE.

2008-01-04  Richard Sandiford  <rsandifo@nildram.co.uk>

	* config/mips/mips.md (sqrt_condition): Tweak comment.
	(recip_condition): Likewise.  Require TARGET_FLOAT64 for DFmode.

2008-01-03  Tom Tromey  <tromey@redhat.com>

	PR c/34457
	* c-common.c (c_type_hash): Handle VLAs.

2008-01-03  Jan Hubicka  <jh@suse.cz>

	PR tree-optimization/31081
	* tree-inline.c (remap_ssa_name): Initialize uninitialized SSA vars to
	0 when inlining and not inlining to first basic block.
	(remap_decl): When var is initialized to 0, don't set default_def.
	(expand_call_inline): Set entry_bb.
	* tree-inline.h (copy_body_data): Add entry_bb.

2008-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR c++/34619
	* cgraphunit.c (cgraph_build_static_cdtor): set_cfun back to NULL
	before returning.

	PR tree-optimization/29484
	* tree-inline.c (inline_forbidden_p_2): New function.
	(inline_forbidden_p): Disallow inlining if some static var
	has an address of a local LABEL_DECL in its initializer.
	* doc/extend.texi (Labels as Values): Document &&foo behaviour
	vs. inlining.

2008-01-03  Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/34635
	* tree-data-ref.c (add_other_self_distances): Make sure that the
	evolution step is constant.

2008-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/34608
	* omp-low.c (expand_omp_parallel): Purge dead EH edges in the child fn.

2008-01-02  Richard Sandiford  <rsandifo@nildram.co.uk>

	* tree-sra.c (scalarize_init): Insert the generate_element_init
	statements after the generate_element_zero statements.

2008-01-02  Richard Guenther  <rguenther@suse.de>

	PR middle-end/34093
	PR middle-end/31976
	* tree-ssa-operands.c (ssa_operand_alloc): Also allocate a buffer
	for very large number of operands instead of ICEing.

2008-01-02  Arthur Norman <acn1@cam.ac.uk>

	PR target/34013
	* gcc/config/i386/i386.c (ix86_expand_prologue): Save red-zone
	while stack probing.

2008-01-01  Douglas Gregor  <doug.gregor@gmail.com>

	* c-opts.c (sanitize_cpp_opts): Don't warn about "long long" when
	in C++0x mode.

2008-01-01  Volker Reichelt  <v.reichelt@netcologne.de>

	PR libmudflap/26442
	* tree-mudflap.c (mx_register_decls): Guard warning by
	!DECL_ARTIFICIAL check.

2008-01-01  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/sse.md (sse5_pperm, sse5_pperm_pack_v2di_v4si,
	sse5_pperm_pack_v4si_v8hi, sse5_pperm_pack_v8hi_v16qi,
	sse5_perm<mode>): Fix constraints.