+1999-12-07 Jakub Jelinek <jakub@redhat.com>
+
+ * config/sparc/sparc.c (hard_32bit_mode_classes): Mark registers
+ suitable for holding OFmode values so that gcc works with complex
+ quad long doubles.
+ (hard_64bit_mode_classes): Likewise.
+
+ * config/sparc/sparc.md (sethi_di_medlow_embmedany_pic): Fix pattern
+ so that it is actually matched.
+ (sethi_di_medlow): Likewise.
+
+ * config/sparc/sparc.h (LEGITIMATE_CONSTANT_P): Consider TFmode 0.0L
+ as legitimate constant if -mvis.
+ * config/sparc/sparc.md (movtf): Likewise.
+ (clear_sf): Use const_double_operand.
+ (clear_sfp, clear_dfp, clear_tf, clear_tfp): New patterns.
+
+ * config/sparc/sparc.c (sparc_emit_float_lib_cmp): New function.
+ * config/sparc/sparc-protos.h (sparc_emit_float_lib_cmp): Prototype.
+ * config/sparc/sparc.h (*_LIBCALL): Only use for _Q_*
+ routines, _Qp_* cannot be handled like that now.
+ (INIT_TARGET_OPTABS): Likewise.
+ * config/sparc/sparc.md (cmptf): Accept soft float ARCH64.
+ (seq, sne, sgt, sge, slt, sle, beq, bne, bgt, bge, blt, ble): Call
+ sparc_emit_float_lib_cmp if ARCH64 and soft float.
+ (extendsftf2, extenddftf2, trunctfsf2, trunctfdf2, floatsitf2,
+ floatditf2, fix_trunctfsi2, fix_trunctfdi2, addtf3, subtf3, multf3,
+ divtf3, sqrttf3): New expanders.
+ (extendsftf2_hq, extenddftf2_hq, trunctfsf2_hq, trunctfdf2_hq,
+ floatsitf2_hq, floatditf2_hq, fix_trunctfsi2_hq, fix_trunctfdi2_hq,
+ addtf3_hq, subtf3_hq, multf3_hq, divtf3_hq, sqrttf3_hq): Rename from
+ non-_hq patterns.
+
+ * configure.in (sparc64-*-linux*): Use posix threads if enabled.
+ * configure: Rebuilt.
+ * config/sparc/linux64.h: Default to -mcpu=ultrasparc if no
+ -mcpu is given and we're doing 64bit compiles.
+
+Tue Dec 7 19:22:06 1999 Richard Henderson <rth@cygnus.com>
+
+ * loop.h (struct induction): Add multi_insn_incr.
+ * loop.c (basic_induction_var): New multi_insn_incr argument.
+ Set it if we search back through previous insns for the biv.
+ (record_biv): New multi_insn_incr argument; fill in struct induction.
+ (strength_reduce): Discard an iv with multiple bivs, any of
+ which require multiple insns to increment.
+
+1999-12-07 Martin v. Löwis <loewis@informatik.hu-berlin.de>
+
+ * invoke.texi (C Dialect Options): Remove -flang-c9x, add -std
+ documentation.
+
+1999-12-06 David S. Miller <davem@redhat.com>
+
+ * combine.c (check_promoted_subreg): Do not conditionalize this upon
+ PROMOTE_FUNCTION_RETURN.
+
+Mon Dec 6 15:12:14 1999 Jim Wilson <wilson@cygnus.com>
+
+ * regmove.c (optimize_reg_copy_1): If no REG_DEAD note, check for
+ and handle REG_UNUSED note on insn.
+
+ * combine.c (force_to_mode, case LSHIFTRT): New local inner_mask. Set
+ inner_mask instead of mask.
+
+1999-12-06 Brendan Kehoe <brendan@cygnus.com>
+
+ * dwarf2out.c (field_byte_offset): As with dwarfout.c, size can be
+ zero if there was an error.
+
+1999-12-06 Jakub Jelinek <jakub@redhat.com>
+
+ * config/sparc/sparc.md (return_losum_di): Fix typo in asm
+ output string.
+
+ * longlong.h: Fix clobbers in SPARC asm statements.
+
+ * config/sparc/sparc.c (input_operand): Allow HImode and QImode
+ valid sethi operations when TARGET_ARCH64.
+
+ * calls.c (save_fixed_argument_area): If save_mode is BLKmode,
+ always use move_by_pieces to avoid infinite recursion.
+ (restore_fixed_argument_area): Likewise.
+
+ * combine.c (check_promoted_subreg, record_promoted_value): New
+ functions.
+ (combine_instructions): Use them to retain nonzero and sign bit
+ information after SUBREGs are eliminated by optimizations in
+ this pass if PROMOTE_FUNCTION_RETURN.
+
+ * config/sparc/sparc.h (ASM_DECLARE_REGISTER_GLOBAL): Document
+ .register declaration. Don't use variables with __ prefixes.
+
+Mon Dec 6 12:24:52 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
+
+ * fold-const.c (optimize_bit_field_compare): Only use one mode
+ for both RHS and LHS in non-constant case.
+
+1999-12-06 Nathan Sidwell <nathan@acm.org>
+
+ * frame.c (start_fde_sort): Only allocate erratic array, if
+ linear one was allocated. Return allocated flag.
+ (fde_insert): Only insert, if there's a valid array.
+ (fde_end_sort): Split, sort and merge if linear and erratic
+ arrays exist, else just sort linear one.
+ (search_fdes): New function. Linear search through original fde
+ structure.
+ (frame_init): Permit multiple initializations. Cope with
+ memory shortages.
+ (find_fde): Fallback on linear search, if failed to sort array.
+ (__deregister_frame_info): Only free sorted array, if we
+ allocated it.
+
+1999-12-06 Jakub Jelinek <jakub@redhat.com>
+
+ * config/sparc/sparc.h (MUST_PASS_IN_STACK): New macro.
+
+1999-12-05 Jakub Jelinek <jakub@redhat.com>
+
+ * config/sparc/sparc.c (sparc64_initialize_trampoline): Use gen_flushdi.
+
+1999-12-05 Mark Mitchell <mark@codesourcery.com>
+
+ * tree.h (special_function_p): Declare.
+ * calls.c (special_function_p): Make it global. Don't take `name'
+ as a parameter. Fix typo in 1999-11-28 change.
+ (expand_cal): Adjust.
+
+1999-12-04 Mark Mitchell <mark@codesourcery.com>
+
+ * tree.def (EXPR_WITH_FILE_LOCATION): Fix comment formatting.
+ * tree.h (EXPR_WFL_FILENAME): Define in terms of
+ EXPR_WFL_FILENAME_NODE.
+ (EXPR_WFL_FILENAME_NODE): Use the second operand slot rather than
+ the TREE_CHAIN.
+ * print-tree.c (print_note): Print TREE_PRIVATE and
+ TREE_PROTECTED.
+
+ * dwarf2out.c (add_abstract_origin_attribute): Don't abort when
+ the original die cannot be found.
+
+ * varray.h (varray_head_tag): Add elements_used.
+ (VARRAY_PUSH): New macro.
+ (VARRAY_POP): Likewise.
+ (VARRAY_TOP): Likewise.
+ Add variants of VARRAY_PUSH and VARRAY_POP for all varray element
+ types.
+ * varray.c (varray_init): Initialize elements_used.
+ * Makefile.in (BASIC_BLOCK_H): Add varray.h.
+ (INTEGRATE_H): New variable.
+ (integrate.o): Depend on INTEGRATE_H.
+ (unroll.o): Likewise.
+
+ * function.h (insert_block_after_note): Declare.
+ * function.c (insert_block_after_note): Split out from ...
+ (retrofit_block): ... here.
+
+ * stmt.c (expand_fixup): Fix typo in comment.
+
+Sat Dec 4 14:13:38 MET 1999 Jan Hubicka <hubicka@freesoft.cz>
+
+ * regmove.c (copy_src_to_dest): Remove loop_depth parameter.
+ (optimize_reg_copy_1): Remove REG_N_REFS updating code.
+ (optimize_reg_copy_2, copy_src_to_dest, fixup_match_2): Likewise.
+ (regmove_optimize, fixup_match_1): Likewise.
+
+1999-12-05 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
+
+ * flow.c (flow_loops_dump): Add missing argument when calling
+ flow_loop_nested_p.
+
+1999-12-04 Geoffrey Keating <geoffk@cygnus.com>
+ Greg McGary <gkm@gnu.org>
+
+ * c-common.c (enum attrs): Add A_NO_LIMIT_STACK.
+ (init_attributes): Add A_NO_LIMIT_STACK.
+ (decl_attributes): Handle A_NO_LIMIT_STACK.
+ * c-decl.c (duplicate_decls): Handle DECL_NO_LIMIT_STACK.
+ * explow.c (allocate_dynamic_stack_space) [!HAVE_allocate_stack]:
+ Handle stack bounds checking.
+ * flags.h (flag_stack_check): Use the word 'probe' rather than
+ 'check', because the flag doesn't actually cause any checking to
+ be done.
+ * function.c (expand_function_start): Set
+ current_function_limit_stack.
+ * function.h (struct function): Add limit_stack.
+ (current_function_limit_stack): Define.
+ * invoke.texi (Code Gen Options): Document new options.
+ * rtl.h: Declare stack_limit_rtx.
+ * toplev.c (stack_limit_rtx): New variable.
+ (decode_f_option): Handle new options -fstack-limit-register=REG,
+ -fstack-limit-symbol=IDENT, -fno-stack-limit.
+ (main): Add stack_limit_rtx as GC root.
+ * tree.h (DECL_NO_LIMIT_STACK): New macro.
+ (struct tree_decl): New member no_limit_stack.
+
+ * config/rs6000/rs6000.c (rs6000_allocate_stack_space): Handle
+ stack_limit_rtx.
+ * config/rs6000/rs6000.md (allocate_stack): Handle stack_limit_rtx.
+ (conditional_trap+1): Get new mnemonic correct.
+ (conditional_trap+2): New pattern for DImode traps.
+
+ * config/m68k/m68k.c (output_function_prologue): Handle
+ stack_limit_rtx.
+ * config/m68k/m68k.md (trap): New insn.
+ (conditional_trap): New insn.
+ * md.texi (Standard Names): Document `trap' and
+ `conditional_trap'.
+ * optabs.c (gen_cond_trap): Use start_sequence()/end_sequence()
+ so a cc0 setter doesn't get emitted at some random place in the
+ function.
+
+ * config/i960/i960.md (trap): New insn.
+ (conditional_trap): New expander.
+ (conditional_trap+1, conditional_trap+2): New insns for signed
+ and unsigned cases.
+ * config/i960/i960.c (i960_function_prologue): Use
+ STARTING_FRAME_OFFSET. Handle stack_limit_rtx.
+
+Thu Dec 2 21:22:45 1999 Greg McGary <gkm@gnu.org>
+ Geoffrey Keating <geoffk@cygnus.com>
+
+ * flags.h (warn_padded, warn_packed): Add global var decls.
+ * toplev.c (warn_padded, warn_packed): Add global var defns.
+ (W_options): Add warnings `-Wpacked' and `-Wpadded'.
+ * stor-layout.c (layout_record): Add local variable `type'
+ to hold often-used TREE_TYPE (field). Add local variable
+ `unpacked_align' to hold alignment that would be in force
+ if no `packed' attribute were present. Warn if `packed' attribute
+ is unnecessary, or even harmful. Warn when gcc inserts padding
+ to satisfy alignment requirements of members. Use NULL_TREE
+ when checking whether var_size is set.
+ * invoke.texi: Document new flags.
+
+1999-12-03 Nathan Sidwell <nathan@acm.org>
+
+ * frame.c (fde_split): Reimplement to avoid variable sized array.
+
+Thu Dec 2 18:59:48 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
+
+ * combine.c (try_combine): Before fixing up LOG_LINKS for the
+ i3_subst_into_i2 case, check that GET_CODE (PATTERN (i2)) == PARALLEL.
+
+1999-12-02 Gavin Romig-Koch <gavin@cygnus.com>
+
+ * invoke.texi: Document the mips option -mno-crt0
+
+1999-12-02 Mike Karr <mkarr@mathworks.com>
+
+ * cccp.c (argdata): Added free_ptr member.
+ (macroexpand): Initialize free_ptr of each argument. When an
+ argument's buffers are freed, if the argument's free_ptr corresponds
+ to a buffer on the input stack, then return the free_ptr to that stack
+ frame, otherwise, free it.
+ (macarg): If an argument begins and ends on the same input stack level,
+ then transfer the free_ptr of that buffer to the argument in case
+ the stack is popped during the processing of a subsequent argument.
+
+1999-12-02 Bernd Schmidt <bernds@cygnus.co.uk>
+
+ * loop.c (note_reg_stored): New function.
+ (struct note_reg_stored_arg): New structure.
+ (try_copy_prop): Change to be more conservative; only replace within
+ one extended basic block and stop replacing if a store to the
+ replacement reg is seen.
+
+1999-12-02 Nick Clifton <nickc@cygnus.com>
+
+ * config/fp-bit.c: Initialise all fields of the NAN
+ constants.
+
+ * c-lex.c (check_newline): Pass pragma_getc and pragma_ungetc
+ to HANDLE_PRAGMA.
+
+Wed Dec 1 18:16:38 1999 Jan Hubicka <hubicka@freesoft.cz>
+
+ * i386.md (extend?f?f2): Force the input into a register, not
+ the output.
+
1999-12-01 Jakub Jelinek <jakub@redhat.com>
* config/sparc/sparc.md (movsf_const_intreg): Add constraints for