gcc/ChangeLog

   1 2006-01-03  Steven Bosscher  <stevenb.gcc@gmail.com>
   2
   3         * fold-const.c (operand_equal_p): Accept a NULL operand 0 for
   4         COMPONENT_REFs.
   5         * emit-rtl.c (mem_attrs_htab_eq): Use iterative_hash_expr for
   6         hashing trees instead of a pointer hash.
   7         (mem_attrs_htab_eq): Do a deep compare instead of a pointer
   8         compare for MEM_EXPR.
   9
  10         PR rtl-optimization/25130
  11         * cse.c (exp_equiv_p): Compare MEM_ATTRS instead of MEM_ALIAS_SET
  12         when comparing MEMs for GCSE
  13
  14 2006-01-03  Ben Elliston  <bje@au.ibm.com>
  15
  16         * targhooks.h (default_decimal_float_supported_p): Declare.
  17         * targhooks.c (default_decimal_float_supported_p): Define.
  18         * target-def.h (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Redefine to
  19         `default_decimal_float_supported_p'.
  20         * doc/tm.texi (TARGET_DECIMAL_FLOAT_SUPPORTED_P): Update.
  21
  22 2006-01-02  Adam Nemet  <anemet@caviumnetworks.com>
  23
  24         * combine.c (apply_distributive_law <SUBREG>): Check
  25         TRULY_NOOP_TRUNCATION.
  26
  27 2006-01-02  Geoffrey Keating  <geoffk@apple.com>
  28
  29         * dwarf2out.c (have_switched_text_section): Delete.
  30         (have_multiple_function_sections): New.
  31         (have_location_lists): Make 'bool'.
  32         (add_AT_loc_list): Use 'true' not '1'.
  33         (dwarf2out_switch_text_section): Set have_multiple_function_sections.
  34         (output_loc_list): Use have_multiple_function_sections.
  35         (output_ranges): Likewise.
  36         (dwarf2out_begin_function): Set have_multiple_function_sections if
  37         necessary.
  38         (dwarf2out_source_line): Don't fake separate_line_info_table_in_use.
  39         Check function_section rather than DECL_SECTION_NAME.
  40         (dwarf2out_finish): Use have_multiple_function_sections.
  41         Don't clear have_location_lists.
  42
  43 2006-01-02  Eric Botcazou  <ebotcazou@adacore.com>
  44             Jan Hubicka  <jh@suse.cz>
  45
  46         * cfglayout.c (fixup_reorder_chain): Remove kludge for the
  47         case of conditional jump jumping to the next instruction.
  48         * cfgrtl.c (force_nonfallthru_and_redirect): Accept all
  49         cases of conditional jump jumping to the next instruction.
  50
  51 2006-01-02  Jan Hubicka  <jh@suse.cz>
  52
  53         * i386.c (*_cost): Add COSTS_N_INSNS.
  54         (ix86_rtx_costs): Do not use COSTS_N_INSNS.
  55
  56 2006-01-02  Paolo Bonzini  <bonzini@gnu.org>
  57
  58         PR target/25259
  59         * Makefile.in (DECNUMINC): Include libdecnumber's build directory.
  60
  61 2006-01-02  Volker Reichelt  <reichelt@igpm.rwth-aachen.de>
  62
  63         * config/arm/arm.c (all_fpus): Fix comment typo.
  64         * config/darwin.c: Likewise.
  65         * config/frv/frv.h (FRV_STRUCT_VALUE_REGNUM): Likewise.
  66         * config/h8300/h8300.md (extendqisi2_h8300hs): Likewise.
  67         * config/m68hc11/m68hc11.c (m68hc11_reload_operands): Likewise.
  68
  69 2006-01-01  David Edelsohn  <edelsohn@gnu.org>
  70
  71         * config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): New.
  72         (rs6000_split_compare_and_swapqhi): New.
  73         * config/rs6000/sync.md (sync_compare_and_swap{hi,qi}): New.
  74         (sync_compare_and_swapqhi_internal): New.
  75         * config/rs6000/rs6000-protos.h: Declare.
  76