+2007-02-18 David Edelsohn <edelsohn@gnu.org>
+ Roger Sayle <roger@eyesopen.com>
+
+ * config/rs6000/rs6000.md (bswapsi2): New define_insn and splitter.
+
+2007-02-18 Sandra Loosemore <sandra@codesourcery.com>
+
+ * calls.c (initialize_argument_information): Pass original EXP
+ and STRUCT_VALUE_ADDR_VALUE instead of a list of arguments. Move
+ code to split complex arguments here, as part of initializing the
+ ARGS array.
+ (expand_call): Remove code that builds a list of arguments and
+ inserts implicit arguments into it. Instead, just count how many
+ implicit arguments there will be so we can determine the size of
+ the ARGS array, and let initialize_argument_information do the work.
+ (split_complex_values): Delete unused function.
+
+2007-02-18 Eric Botcazou <ebotcazou@adacore.com>
+
+ * tree-eh.c (tree_could_trap_p): Handle VIEW_CONVERT_EXPR.
+
+2007-02-18 Eric Botcazou <ebotcazou@adacore.com>
+
+ * calls.c (mem_overlaps_already_clobbered_arg_p): Return true
+ for arg pointer based indexed addressing.
+
+2007-02-18 Kazu Hirata <kazu@codesourcery.com>
+
+ * config/ia64/ia64.h, config/ia64/ia64.md,
+ config/ia64/predicates.md, config/ia64/sysv4.h: Follow
+ spelling conventions.
+
+2007-02-18 Roman Zippel <zippel@linux-m68k.org>
+
+ * config/m68k/m68k.c (split_di): New.
+ * config/m68k/m68k-protos.h: Declare split_di.
+ * config/m68k/m68k.md (extendsidi2*,ashldi3*,ashrdi3*,lshrdi3*):
+ Improve predicate handling and split constant shifts.
+
+2007-02-18 Roman Zippel <zippel@linux-m68k.org>
+
+ * config/m68k/m68k.md (extv,extzv,insv): disable dynamic
+ parameter for register bitfield operations, general predicates
+ cleanup
+
+2007-02-18 Roman Zippel <zippel@linux-m68k.org>
+
+ * config/m68k/linux.h (MD_UNWIND_SUPPORT): Define.
+ * config/m68k/linux-unwind.h: New file.
+
+2007-02-18 Kazu Hirata <kazu@codesourcery.com>
+
+ * cfgloop.c, config/alpha/alpha.c, config/bfin/bfin.c,
+ config/i386/athlon.md, config/ia64/ia64.md,
+ config/rs6000/rs6000.c, config/s390/s390.c, config/spu/spu.md,
+ df-problems.c, df.h, fold-const.c, ipa-cp.c, ipa-inline.c,
+ ipa-prop.h, see.c, struct-equiv.c, tree-inline.c,
+ tree-ssa-loop-niter.c, tree-vect-analyze.c,
+ tree-vect-transform.c: Fix comment typos.
+
+2007-02-17 Kazu Hirata <kazu@codesourcery.com>
+
+ * sched-deps.c (find_insn_list): Remove.
+ * sched-int.h: Remove the prototype for find_insn_list.
+
+2007-02-16 Geoffrey Keating <geoffk@apple.com>
+
+ * config/darwin.h (LINK_SPEC): Always pass -macosx_version_min
+ to linker.
+ (DARWIN_EXTRA_SPECS): Add %(darwin_minversion).
+ * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Just call
+ darwin_rs6000_override_options.
+ (C_COMMON_OVERRIDE_OPTIONS): Expect
+ darwin_macosx_version_min to be non-NULL always.
+ (TARGET_C99_FUNCTIONS): Likewise.
+ (CC1_SPEC): Always pass -mmacosx-version-min to cc1*.
+ (DARWIN_MINVERSION_SPEC): New.
+ * config/rs6000/rs6000.c (darwin_rs6000_override_options): New.
+ * config/i386/darwin.h (CC1_SPEC): Always pass -mmacosx-version-min
+ to cc1*.
+ (DARWIN_MINVERSION_SPEC): New.
+ * config/darwin.opt (mmacosx-version-min): Initialize to non-NULL
+ value.
+ * config/darwin-c.c (darwin_cpp_builtins): Expect
+ darwin_macosx_version_min to be non-NULL always.
+
+ * config/rs6000/rs6000.c: Clean up trailing whitespace.
+
+2007-02-16 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.h (x86_use_xchgb): New.
+ (TARGET_USE_XCHGB): New macro.
+ * config/i386/i386.c (x86_use_xchgb): Set for PENT4.
+ * config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
+ Split after reload into bswaphi for shifts of 8.
+ (bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
+ (*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
+ or when optimizing for size.
+
+2007-02-16 Richard Guenther <rguenther@suse.de>
+ Christian Bruel <christian.bruel@st.com>
+
+ * fold-const.c (tree_swap_operands_p): Treat SSA_NAMEs like
+ DECLs but prefer SSA_NAMEs over DECLs.
+
+2007-02-16 Richard Guenther <rguenther@suse.de>
+
+ * tree-flow-inline.h (single_imm_use_p): Remove.
+ (zero_imm_uses_p): Likewise.
+ * tree-ssa-coalesce.c (create_outofssa_var_map): Use has_single_use
+ instead of single_imm_use_p.
+ * tree-cfg.c (replace_uses_by): Use has_zero_use instead of
+ zero_imm_uses_p.
+
+2007-02-16 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ PR other/27843
+ * Makefile.in (SYSTEM_HEADER_DIR): Use single quotes to avoid
+ nested double- and backquotes.
+
+2007-02-15 Roger Sayle <roger@eyesopen.com>
+
+ PR middle-end/30391
+ * tree.c (expr_align): Handle MODIFY_EXPR. GIMPLE_MODIFY_STMT
+ should be unreachable.
+ (build2_stat): Allow construction of MODIFY_EXPR at any time.
+ For the time being redirect GIMPLE_MODIFY_STMT to the new
+ (renamed) build_gimple_modify_stmt_stat.
+ (build2_gimple_stat): Rename to...
+ (build_gimple_modify_stmt_stat): Now longer take a CODE argument.
+ Always build a GIMPLE_MODIFY_STMT node.
+ * tree.h (build2_gimple, build2_gimple_stat): Delete.
+ (build_gimple_modify_stmt, build_gimple_modify_stmt_stat): New
+ declarations.
+
+ * tree-cfg.c (factor_computed_gotos, tree_merge_blocks,
+ gimplify_val): Use build_gimple_modify_stmt instead of build2_gimple.
+ * tree-complex.c (set_component_ssa_name, expand_complex_move,
+ expand_complex_div_wide): Likewise.
+ * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
+ * tree-ssa-loop-im.c (schedule_sm): Likewise.
+ * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Likewise.
+ * tree-ssa-loop-manip.c (create_iv): Likewise.
+ * tree-ssa-phiopt.c (conditional_replacement, minmax_replacement,
+ abs_replacement): Likewise.
+ * tree-ssa-pre.c (create_expression_by_pieces, poolify_modify_stmt,
+ realify_fake_stores): Likewise.
+
+ * builtins.c (std_expand_builtin_va_start): Build a MODIFY_EXPR
+ node rather than a GIMPLE_MODIFY_STMT node.
+ (std_gimpify_va_arg_expr, expand_builtin_va_copy,
+ fold_builtin_memset, fold_builtin_memory_op, do_mpfr_sincos):
+ Likewise.
+ (integer_valued_real_p): Handle MODIFY_EXPR, not GIMPLE_MODIFY_STMT.
+ * expr.c (expand_expr_real_1): Handle both MODIFY_EXPR and
+ GIMPLE_MODIFY_STMT.
+
+2007-02-15 Andrew Pinski <andrew_pinski@playstation.sony.com>
+
+ PR middle-end/30433
+ * fold-const.c (fold_comparison): Add back the
+ folding of constant complex comparisions.
+
+2007-02-15 Andrew Pinski <andrew_pinski@playstation.sony.com>
+
+ PR middle-end/30729
+ * stmt.c (warn_if_unused_value): VA_ARG_EXPR has side
+ effects unknown to this function, return early.
+
+2007-02-15 Ian Lance Taylor <iant@google.com>
+
+ * lower-subreg.c (move_eh_region_note): New static function.
+ (resolve_simple_move): Call it.
+ (decompose_multiword_subregs): Track blocks for which we resolve a
+ simple move which is also a control flow insn. Pass them to
+ find_many_sub_basic_blocks.
+ (pass_lower_subreg): Add TODO_verify_flow.
+ (pass_lower_subreg2): Likewise.
+
+2007-02-15 Sandra Loosemore <sandra@codesourcery.com>
+ Brooks Moses <brooks.moses@codesourcery.com>
+ Lee Millward <lee.millward@codesourcery.com>
+
+ * tree.h (enum tree_code_class): Add tcc_vl_exp.
+ (VL_EXP_CLASS_P): New.
+ (TREE_OPERAND_CHECK): Use TREE_OPERAND_LENGTH instead of
+ TREE_CODE_LENGTH.
+ (TREE_OPERAND_CHECK_CODE): Likewise.
+ (GIMPLE_STMT_OPERAND_CHECK): Likewise.
+ (TREE_RTL_OPERAND_CHECK): Likewise.
+ (tree_operand_check_failed): Make second parameter the whole tree
+ instead of its code. Fixed callers.
+ (VL_EXP_CHECK): New.
+ (TREE_OPERAND_LENGTH): New.
+ (VL_EXP_OPERAND_LENGTH): New.
+ (CALL_EXPR_FN): New.
+ (CALL_EXPR_STATIC_CHAIN): New.
+ (CALL_EXPR_ARGS): New.
+ (CALL_EXPR_ARG): New.
+ (call_expr_nargs): New.
+ (CALL_EXPR_ARGP): New.
+ (build_nt_call_list): Declare.
+ (build_vl_exp_stat): Declare.
+ (build_vl_exp): New.
+ (build_call_list): Declare.
+ (build_call_nary): Declare.
+ (build_call_valist): Declare.
+ (build_call_array): Declare.
+ (call_expr_arg): Declare.
+ (call_expr_argp): Declare.
+ (call_expr_arglist): Declare.
+ (fold_build_call_list): Declare.
+ (fold_build_call_list_initializer): Declare.
+ (fold_call_expr): Declare to replace fold_builtin.
+ (fold_builtin_fputs): Update to agree with modified definition.
+ (fold_builtin_strcpy): Likewise.
+ (fold_builtin_strncpy): Likewise.
+ (fold_builtin_memory_chk): Likewise.
+ (fold_builtin_stxcpy_chk): Likewise.
+ (fold_builtin_strncpy_chk): Likewise.
+ (fold_builtin_next_arg): Likewise.
+ (fold_build_call_expr): Declare.
+ (fold_builtin_call_list): Declare.
+ (fold_builtin_call_valist): Declare.
+ (build_call_expr): Declare.
+ (validate_arglist): Update to agree with modified definition.
+ (tree_operand_length): New.
+ (call_expr_arg_iterator): New.
+ (init_call_expr_arg_iterator): New.
+ (next_call_expr_arg): New.
+ (first_call_expr_arg): New.
+ (more_call_expr_args_p): New.
+ (FOR_EACH_CALL_EXPR_ARG): New.
+
+ * tree.c (tree_code_class_string): Add entries for tcc_vl_exp
+ and tcc_gimple_stmt.
+ (tree_code_size): Update documentation. Use sizeof (tree) rather
+ than sizeof (char *).
+ (tree_size): Likewise. Add case for tcc_vl_exp.
+ (tree_node_structure): Add case for tcc_vl_exp.
+ (contains_placeholder_p): Likewise.
+ (substitute_in_expr): Likewise.
+ (substitute_placeholder_in_expr): Likewise.
+ (stabilize_reference_1): Likewise.
+ (build3_stat): Remove logic for CALL_EXPRs. Replace with assertion
+ to diagnose breakage of this interface for constructing CALL_EXPRs.
+ (build_nt): Add similar assertion here.
+ (build_nt_call_list): New.
+ (simple_cst_equal) <CALL_EXPR>: Rewrite to use new accessors.
+ (iterative_hash_expr): Use TREE_OPERAND_LENGTH instead of
+ TREE_CODE_LENGTH.
+ (get_callee_fndecl): Use new CALL_EXPR accessors.
+ (tree_operand_check_failed): Change parameters to pass entire node
+ instead of its code, so that we can call TREE_OPERAND_LENGTH on it.
+ (process_call_operands): New.
+ (build_vl_exp_stat): New.
+ (build_call_list): New.
+ (build_call_nary): New.
+ (build_call_valist): New.
+ (build_call_array): New.
+ (walk_tree): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+ (call_expr_arglist): New.
+
+ * tree.def (CALL_EXPR): Change representation of CALL_EXPRs to use
+ tcc_vl_exp instead of a fixed-size tcc_expression.
+
+ * doc/c-tree.texi (CALL_EXPR): Document new representation and
+ accessors for CALL_EXPRs.
+ (AGGR_INIT_EXPR): Likewise.
+
+2007-02-15 Sandra Loosemore <sandra@codesourcery.com>
+ Brooks Moses <brooks.moses@codesourcery.com>
+ Lee Millward <lee.millward@codesourcery.com>
+
+ * builtins.c (c_strlen): Return NULL_TREE instead of 0.
+ (expand_builtin_nonlocal_goto): Change parameter to be entire
+ CALL_EXPR instead of an arglist. Use new CALL_EXPR accessors.
+ (expand_builtin_prefetch): Likewise.
+ (expand_builtin_classify_type): Likewise.
+ (mathfn_built_in): Return NULL_TREE instead of 0.
+ (expand_errno_check): Use new CALL_EXPR accessors.
+ (expand_builtin_mathfn): Use new CALL_EXPR accessors and constructors.
+ Return NULL_RTX instead of 0.
+ (expand_builtin_mathfn_2): Likewise.
+ (expand_builtin_mathfn_3): Likewise.
+ (expand_builtin_interclass_mathfn): Likewise.
+ (expand_builtin_sincos): Likewise.
+ (expand_builtin_cexpi): Likewise.
+ (expand_builtin_int_roundingfn): Likewise.
+ (expand_builtin_int_roundingfn_2): Likewise.
+ (expand_builtin_pow): Likewise.
+ (expand_builtin_powi): Likewise.
+ (expand_builtin_strlen): Pass entire CALL_EXPR as parameter instead
+ of arglist, fixing callers appropriately. Use new CALL_EXPR
+ accessors and constructors. Return NULL_RTX instead of 0.
+ (expand_builtin_strstr): Likewise.
+ (expand_builtin_strchr): Likewise.
+ (expand_builtin_strrchr): Likewise.
+ (expand_builtin_strpbrk): Likewise.
+ (expand_builtin_memcpy): Likewise.
+ (expand_builtin_mempcpy): Likewise.
+ (expand_builtin_mempcpy_args): New.
+ (expand_builtin_memmove): Similarly to expand_builtin_mempcpy.
+ (expand_builtin_memmove_args): New.
+ (expand_builtin_bcopy): Similarly to expand_builtin_mempcpy.
+ (expand_movstr): Likewise.
+ (expand_builtin_strcpy): Likewise.
+ (expand_builtin_strcpy_args): New.
+ (expand_builtin_stpcpy): Similarly to expand_builtin_strcpy.
+ (expand_builtin_strncpy): Likewise.
+ (expand_builtin_memset): Likewise.
+ (expand_builtin_memset_args): New.
+ (expand_builtin_bzero): Similarly to expand_builtin_memset.
+ (expand_builtin_memcmp): Likewise.
+ (expand_builtin_strcmp): Likewise.
+ (expand_builtin_strncmp): Likewise.
+ (expand_builtin_strcat): Likewise.
+ (expand_builtin_strncat): Likewise.
+ (expand_builtin_strspn): Likewise.
+ (expand_builtin_strcspn): Likewise.
+ (expand_builtin_args_info): Likewise.
+ (expand_builtin_va_start): Likewise.
+ (gimplify_va_arg_expr): Likewise.
+ (expand_builtin_va_end): Likewise.
+ (expand_builtin_va_copy): Likewise.
+ (expand_builtin_frame_address): Likewise.
+ (expand_builtin_alloca): Likewise.
+ (expand_builtin_bswap): Likewise.
+ (expand_builtin_unop): Likewise.
+ (expand_builtin_fputs): Likewise.
+ (expand_builtin_expect): Likewise.
+ (expand_builtin_fabs): Likewise.
+ (expand_builtin_copysign): Likewise.
+ (expand_builtin_printf): Likewise.
+ (expand_builtin_fprintf): Likewise.
+ (expand_builtin_sprintf): Likewise.
+ (expand_builtin_init_trampoline): Likewise.
+ (expand_builtin_signbit): Likewise.
+ (expand_builtin_fork_or_exec): Likewise.
+ (expand_builtin_sync_operation): Likewise.
+ (expand_builtin_compare_and_swap): Likewise.
+ (expand_builtin_lock_test_and_set): Likewise.
+ (expand_builtin_lock_release): Likewise.
+ (expand_builtin): Likewise.
+ (builtin_mathfn_code): Likewise.
+
+ (fold_builtin_constant_p): Pass call arguments individually instead
+ of as an arglist, fixing callers appropriately. Use new CALL_EXPR
+ accessors and constructors. Return NULL_TREE instead of 0.
+ (fold_builtin_expect): Likewise.
+ (fold_builtin_classify_type): Likewise.
+ (fold_builtin_strlen): Likewise.
+ (fold_builtin_nan): Likewise.
+ (integer_valued_real_p): Likewise.
+ (fold_trunc_transparent_mathfn): Likewise.
+ (fold_fixed_mathfn): Likewise.
+ (fold_builtin_cabs): Likewise.
+ (fold_builtin_sqrt): Likewise.
+ (fold_builtin_cbrt): Likewise.
+ (fold_builtin_cos): Likewise.
+ (fold_builtin_cosh): Likewise.
+ (fold_builtin_tan): Likewise.
+ (fold_builtin_sincos): Likewise.
+ (fold_builtin_cexp): Likewise.
+ (fold_builtin_trunc): Likewise.
+ (fold_builtin_floor): Likewise.
+ (fold_builtin_ceil): Likewise.
+ (fold_builtin_round): Likewise.
+ (fold_builtin_int_roundingfn): Likewise.
+ (fold_builtin_bitop): Likewise.
+ (fold_builtin_bswap): Likewise.
+ (fold_builtin_logarithm): Likewise.
+ (fold_builtin_hypot): Likewise.
+ (fold_builtin_pow): Likewise.
+ (fold_builtin_powi): Likewise.
+ (fold_builtin_exponent): Likewise.
+ (fold_builtin_memset): Likewise.
+ (fold_builtin_bzero): Likewise.
+ (fold_builtin_memory_op): Likewise.
+ (fold_builtin_bcopy): Deleted; call site changed to invoke
+ fold_builtin_memory_op directly.
+ (fold_builtin_strcpy): Similarly as for fold_builtin_memory_op.
+ (fold_builtin_strncpy): Likewise.
+ (fold_builtin_memcmp): Likewise.
+ (fold_builtin_strcmp): Likewise.
+ (fold_builtin_strncmp): Likewise.
+ (fold_builtin_signbit): Likewise.
+ (fold_builtin_copysign): Likewise.
+ (fold_builtin_isascii): Likewise.
+ (fold_builtin_toascii): Likewise.
+ (fold_builtin_isdigit): Likewise.
+ (fold_builtin_fabs): Likewise.
+ (fold_builtin_abs): Likewise.
+ (fold_builtin_fmin_fmax): Likewise.
+ (fold_builtin_carg): Likewise.
+ (fold_builtin_classify): Likewise.
+ (fold_builtin_unordered_cmp): Likewise.
+
+ (fold_builtin_0, fold_builtin_2, fold_builtin_3, fold_builtin_4):
+ New functions split out from fold_builtin_1.
+ (fold_builtin_n): New.
+ (fold_builtin_varargs): New.
+ (fold_builtin): Deleted. Most callers changed to use fold_call_expr
+ instead.
+ (fold_call_expr): New.
+ (build_function_call_expr): Rewrite to use new helper function.
+ (fold_builtin_call_list): New.
+ (build_call_expr): New.
+ (fold_builtin_call_valist): New.
+ (rewrite_call_expr): New.
+ (validate_arg): New.
+ (validate_arglist): Change parameter to be entire CALL_EXPR instead
+ of an arglist. Change return type to bool. Use new CALL_EXPR
+ accessors.
+
+ (fold_builtin_strstr): Pass call arguments individually instead
+ of as an arglist, fixing callers appropriately. Use new CALL_EXPR
+ accessors and constructors. Return NULL_TREE instead of 0.
+ (fold_builtin_strchr): Likewise.
+ (fold_builtin_strrchr): Likewise.
+ (fold_builtin_strpbrk): Likewise.
+ (fold_builtin_strcat): Likewise.
+ (fold_builtin_strncat): Likewise.
+ (fold_builtin_strspn): Likewise.
+ (fold_builtin_strcspn): Likewise.
+ (fold_builtin_fputs): Likewise.
+ (fold_builtin_next_arg): Likewise.
+ (fold_builtin_sprintf): Likewise.
+
+ (expand_builtin_object_size): Use new CALL_EXPR accessors. Use
+ NULL_RTX instead of 0.
+ (expand_builtin_memory_chk): Likewise.
+ (maybe_emit_chk_warning): Likewise.
+ (maybe_emit_sprintf_chk_warning): Likewise.
+
+ (fold_builtin_object_size): Pass call arguments individually instead
+ of as an arglist, fixing callers appropriately. Use new CALL_EXPR
+ accessors and constructors. Return NULL_TREE instead of 0.
+ (fold_builtin_memory_chk): Likewise.
+ (fold_builtin_stxcpy_chk): Likewise.
+ (fold_builtin_strncpy_chk): Likewise.
+ (fold_builtin_strcat_chk): Likewise.
+ (fold_builtin_strcat_chk): Likewise.
+ (fold_builtin_strncat_chk): Likewise.
+ (fold_builtin_sprintf_chk): Likewise.
+ (fold_builtin_snprintf_chk): Likewise.
+ (fold_builtin_printf): Likewise.
+ (fold_builtin_vprintf): Likewise.
+
+ * fold-const.c (negate_expr_p): Use new CALL_EXPR accessors and
+ constructors.
+ (operand_equal_p): Add separate tcc_vl_exp/CALL_EXPR case.
+ (make_range): Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+ (extract_muldiv_1): Add VL_EXP_CLASS_P case.
+ (fold_mathfn_compare): Use new CALL_EXPR accessors and constructors.
+ (fold_unary): Likewise.
+ (fold_binary): Likewise.
+ (fold_ternary): Remove CALL_EXPR case, since they are no longer
+ ternary expressions.
+ (fold): Add logic for tcc_vl_exp.
+ (fold_checksum_tree): Make it know about tcc_vl_exp. Use
+ TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+ (fold_build3_stat): Add assertion to flag broken interface for
+ constructing CALL_EXPRs.
+ (fold_build_call_list): New.
+ (fold_build_call_list_initializer): New.
+ (tree_expr_nonnegative_p): Use new CALL_EXPR accessors and
+ constructors.
+ (fold_strip_sign_ops): Likewise.
+
+2007-02-15 Sandra Loosemore <sandra@codesourcery.com>
+ Brooks Moses <brooks.moses@codesourcery.com>
+ Lee Millward <lee.millward@codesourcery.com>
+
+ * tree-dump.c (dequeue_and_dump) <CALL_EXPR>: Use new CALL_EXPR
+ accessors and dump arguments explicitly.
+
+ * tree-pretty-print.c (do_niy): Use TREE_OPERAND_LENGTH instead of
+ TREE_CODE_LENGTH.
+ (dump_generic_node): Use new CALL_EXPR accessors and walk arguments
+ explicitly.
+ (print_call_name): Use new CALL_EXPR accessors.
+
+ * print-tree.c (print_node): Add case tcc_vl_exp. Print
+ CALL_EXPR arguments explicitly instead of as a list. Use
+ TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+
+ * tree-vrp.c (stmt_interesting_for_vrp): Use new CALL_EXPR accessors.
+ (vrp_visit_stmt): Likewise.
+
+ * tree-ssa-loop-im.c (outermost_invariant_loop_expr): Make it
+ know about tcc_vl_exp. Use TREE_OPERAND_LENGTH instead of
+ TREE_CODE_LENGTH.
+ (force_move_till_expr): Likewise.
+
+ * targhooks.c (default_external_stack_protect_fail): Use
+ build_call_expr instead of build_function_call_expr.
+ (default_hidden_stack_protect_fail): Likewise.
+
+ * tree-complex.c (expand_complex_libcall): Use build_call_expr to
+ build the call.
+
+ * cgraphbuild.c (build_cgraph_edges): Use new CALL_EXPR accessors
+ and walk arguments explicitly.
+
+ * tree-ssa-loop-niter.c (simplify_replace_tree): Use
+ TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+ (expand_simple_operations): Likewise.
+ (infer_loop_bounds_from_array): Use new CALL_EXPR accessors.
+
+ * gengtype.c (adjust_field_tree_exp): Use TREE_OPERAND_LENGTH instead
+ of TREE_CODE_LENGTH.
+ (walk_type): Tweak walking of arrays not to blow up on CALL_EXPRs.
+
+ * optabs.c (expand_widen_pattern-expr): Use TREE_OPERAND_LENGTH
+ instead of TREE_CODE_LENGTH.
+
+ * value_prof.c (tree_ic): Use new CALL_EXPR accessors.
+ (tree_ic_transform): Likewise.
+ (interesting_stringop_to_profile_p): Pass entire CALL_EXPR as
+ parameter instead of arglist. Fix callers.
+ (tree_stringop_fixed_value): Use new CALL_EXPR accessors.
+ (tree_stringops_transform): Likewise.
+ (tree_indirect_call_to_profile): Likewise.
+ (tree_stringops_values_to_profile): Likewise.
+
+ * tree-tailcall.c (find_tail_calls): Use new CALL_EXPR iterator.
+ (eliminate_tail_call): Likewise.
+
+ * ipa-cp.c (ipcp_update_callgraph): Use new CALL_EXPR accessors.
+
+ * tree-scalar-evolution.c (chrec_contains_symbols_defined_in_loop):
+ Use TREE_OPERAND_LENGTH and generalize to handle any number of
+ operands.
+ (instantiate_parameters_1): Can't handle tcc_vl_exp here.
+
+ * omp-low.c (build_omp_barrier): Use build_call_expr.
+ (lower_rec_input_clauses): Likewise.
+ (lower_reduction_clauses): Likewise.
+ (expand_parallel_call): Likewise.
+ (maybe_catch_exception): Likewise.
+ (expand_omp_for_generic): Likewise.
+ (expand_omp_for_static_nochunk): Likewise.
+ (expand_omp_sections): Likewise.
+ (lower_omp_single_simple): Likewise.
+ (lower_omp_single_copy): Likewise.
+ (lower_omp_master): Likewise.
+ (lower_omp_ordered): Likewise.
+ (lower_omp_critical): Likewise.
+
+ * ipa-reference.c (check-call): Use new CALL_EXPR iterator.
+ (scan_for_static_refs): Create tcc_vl_exp case for CALL_EXPR.
+
+ * tree-gimple.c (is_gimple_call_addr): Fix doc.
+ (recalculate_side_effects): Use TREE_OPERAND_LENGTH instead of
+ TREE_CODE_LENGTH. Add tcc_vl_exp case.
+
+ * tree-chrec.c (chrec_contains_symbols): Use TREE_OPERAND_LENGTH
+ and generalize to handle any number of operands.
+ (chrec_contains_undetermined): Likewise.
+ (tree_contains_chrecs): Likewise.
+ (evolution_function_is_invariant_rec_p): Use TREE_OPERAND_LENGTH.
+
+ * cgraphunit.c (update_call_expr): Use new CALL_EXPR accessors.
+
+ * tree-ssa-ccp.c (ccp_fold): Use new CALL_EXPR accessors. Use
+ fold_call_expr instead of fold_builtin.
+ (ccp_fold_builtin): Likewise. Update calls into builtins.c to
+ match declarations there.
+ (fold_stmt): Use new CALL_EXPR constructor and accessors. Doc
+ updates.
+
+ * tree-ssa-loop-ivopts.c (expr_invariant_in_loop_p): Use
+ TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+
+ * ipa-pure-const.c (check_call): Use new CALL_EXPR accessors.
+ (scan_function): Add case tcc_vl_exp for CALL_EXPR.
+
+ * tree-stdarg.c (execute_optimize_stdarg): Use new CALL_EXPR
+ accessors.
+
+ * tree-ssa-math-opts.c (execute_cse_sincos_1): Use build_call_expr.
+ (execute_cse_sincos): Use new CALL_EXPR accessors.
+
+ * tree-ssa-alias.c (find_used_portions): Use new CALL_EXPR iterator.
+
+ * gimple-low.c (lower_function_body): Use build_call_expr.
+ (lower_builtin_setjmp): Likewise.
+
+ * expr.c (emit_block_move_via_libcall): Use build_call_expr.
+ (set_storage_via_libcall): Likewise.
+ (safe_from_p): Add tcc_vl_exp case. Use TREE_OPERAND_LENGTH
+ instead of TREE_CODE_LENGTH.
+ (expand_expr_real_1): Use new CALL_EXPR accessors.
+
+ * tree-browser.c (store_child_info): Use TREE_OPERAND_LENGTH and
+ generalize to handle any number of operands.
+ (TB_parent_eq): Likewise.
+
+ * predict.c (expr_expected_value): Use new CALL_EXPR accessors.
+ (strip_builtin_expect): Likewise.
+
+ * function.c (gimplify_parameters): Use build_call_expr.
+
+ * tree-vectorizer.c (vect_is_simple_reduction): Use TREE_OPERAND_LENGTH
+ instead of TREE_CODE_LENGTH.
+
+ * ipa-type-escape.c (check_call): Use new CALL_EXPR iterators.
+ (scan_for_refs): Add case tcc_vl_exp for CALL_EXPR.
+
+ * tree-data-ref.c (get_references_in_stmt): Use new CALL_EXPR
+ iterators.
+
+ * gimplify.c (build_stack_save_restore): Use build_call_expr.
+ (gimplify_decl_expr): Likewise.
+ (gimplify_call_expr): Use fold_call_expr instead of fold_builtin.
+ Use new CALL_EXPR iterators.
+ (gimplify_modify_expr_to_memcpy): Use build_call_expr.
+ (gimplify_modify_expr_to_memset): Likewise.
+ (gimplify_variable_sized_compare): Likewise.
+ (gimplify_omp_atomic_fetch_op): Likewise.
+ (gimplify_omp_atomic_pipeline): Likewise.
+ (gimplify_omp_atomic_mutex): Likewise.
+ (gimplify_function_tree): Likewise.
+
+ * calls.c (alloca_call_p): Use new CALL_EXPR accessors.
+ (call_expr_flags): Likewise.
+ (expand_call): Likewise.
+
+ * except.c (expand_builtin_eh_return_data_regno): Pass entire
+ CALL_EXPR as parameter instead of arglist. Use new CALL_EXPR
+ accessors.
+
+ * coverage.c (create_coverage): Use build_call_expr.
+
+ * tree-ssa-pre.c (expression_node_pool, list_node_pool): Delete.
+ (temp_call_expr_obstack): New.
+ (pool_copy_list): Delete.
+ (temp_copy_call_expr): New.
+ (phi_translate): Add case tcc_vl_exp for CALL_EXPR. Use new
+ CALL_EXPR accessors. Get rid of special goo for copying argument
+ lists and use temp_copy_call_expr instead.
+ (valid_in_sets): Add case tcc_vl_exp for CALL_EXPR. Use new
+ CALL_EXPR accessors.
+ (create_expression_by_pieces): Likewise. Use build_call_array
+ to construct the result instead of fold_build3.
+ (create_value_expr_from): Add tcc_vl_exp. Delete special goo for
+ dealing with argument lists.
+ (init_pre): Remove references to expression_node_pool and
+ list_node_pool. Init temp_call_expr_obstack instead.
+ (fini_pre): Remove references to expression_node_pool and
+ list_node_pool.
+
+ * tree-sra.c (sra_walk_call_expr): Use new CALL_EXPR accessors
+ and walk arguments explicitly instead of as a list.
+
+ * tree-mudflap.c (mf_build_check_statement_for): Use build_call_expr.
+ (mx_register_decls): Likewise.
+ (mudflap_register_call): Likewise.
+ (mudflap_finish_file): Likewise.
+
+ * ipa-prop.c (ipa_callsite_compute_count): Use new CALL_EXPR accessors.
+ (ipa_callsite_compute_param): Likewise.
+
+ * tree-vect-patterns.c (vect_recog_pow_pattern): Use new CALL_EXPR
+ accessors and constructor.
+
+ * tree-nested.c (convert_nl_goto_reference): Use new CALL_EXPR
+ accessors and constructor.
+ (convert_tramp_reference): Likewise.
+ (convert_call_expr): Likewise.
+ (finalize_nesting_tree_1): Likewise.
+
+ * tree-ssa.c (tree_ssa_useless_type_conversion): Use new CALL_EXPR
+ accessors.
+
+ * tree-ssa-loop-prefetch.c (issue_prefetch_ref): Use build_call_expr.
+
+ * tree-inline.c (initialize_inlined_parameters): Pass entire
+ CALL_EXPR as parameter instead of arglist. Use new CALL_EXPR
+ accessors.
+ (estimate_num_insns_1): Use new CALL_EXPR accessors.
+ (expand_call_inline): Tidy up call to initialize_inlined_parameters.
+
+ * tree-vect-transform.c (vect_create_epilog_for_reduction): Use
+ TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+ (vectorizable_reduction): Likewise.
+ (vectorizable_call): Use new CALL_EXPR iterators.
+ (vectorizable_conversion): Use build_call_expr.
+ (vectorizable_operation): Use TREE_OPERAND_LENGTH.
+ (vect_gen_widened_results_half): Use build_call_expr.
+ (vect_setup_realignment): Likewise.
+ (vectorizable_live_operation): Use TREE_OPERAND_LENGTH.
+
+ * tree-object-size.c (alloc_object_size): Use new CALL_EXPR accessors.
+ (pass_through_call): Likewise.
+ (compute_object_sizes): Likewise. Use fold_call_expr instead of
+ fold_builtin.
+
+ * tree-profile.c (tree_gen_interval_profiler): Use build_call_expr.
+ (tree_gen_pow2_profiler): Likewise.
+ (tree_gen_one_value_profiler): Likewise.
+ (tree_gen_ic_func_profiler): Likewise.
+ (tree_gen_average_profiler): Likewise.
+ (tree_gen_ior_profiler): Likewise.
+
+ * tree-ssa-structalias.c (get_constraint_for): Add case tcc_vl_exp.
+ (find_func_aliases): Use new CALL_EXPR accessors. Add case
+ tcc_vl_exp. Use TREE_OPERAND_LENGTH instead of TREE_CODE_LENGTH.
+
+ * tree-ssa-reassoc.c (get_rank): Use TREE_OPERAND_LENGTH instead
+ of TREE_CODE_LENGTH.
+
+ * stmt.c (warn_if_unused_value): Use TREE_OPERAND_LENGTH instead
+ of TREE_CODE_LENGTH.
+
+ * convert.c (convert_to_real): Use new CALL_EXPR accessors and
+ constructor.
+ (convert_to_integer): Likewise.
+
+ * tree-ssa-operands.c (get_call_expr_operands): Use new CALL_EXPR
+ accessors.
+
+2007-02-15 Sandra Loosemore <sandra@codesourcery.com>
+ Brooks Moses <brooks.moses@codesourcery.com>
+ Lee Millward <lee.millward@codesourcery.com>
+
+ * config/alpha/alpha.c (alpha_expand_builtin): Use new CALL_EXPR
+ accessors.
+ * config/frv/frv.c (frv_expand_builtin): Likewise.
+ * config/s390/s390.c (s390_expand_builtin): Likewise.
+
+ * config/sparc/sparc.c (sparc_gimplify_va_arg): Use build_call_expr.
+ (sparc_expand_builtin): Use new CALL_EXPR accessors.
+
+ * config/i386/i386.c (ix86_function_ok_for_sibcall): Likewise.
+ (ix86_expand_binop_builtin): Pass entire CALL_EXPR as parameter
+ instead of arglist. Use new CALL_EXPR accessors on it. Fix callers.
+ (ix86_expand_store_builtin): Likewise.
+ (ix86_expand_unop_builtin): Likewise.
+ (ix86_expand_unop1_builtin): Likewise.
+ (ix86_expand_sse_compare): Likewise.
+ (ix86_expand_sse_comi): Likewise.
+ (ix86_expand_vec_init_builtin): Likewise.
+ (ix86_expand_vec_ext_builtin): Likewise.
+ (ix86_expand_vec_set_builtin): Likewise.
+ (ix86_expand_builtin): Use new CALL_EXPR accessors.
+
+ * config/sh/sh.c (sh_expand_builtin): Use new CALL_EXPR accessors.
+ * config/c4x/c4x.c (c4x_expand_builtin): Likewise.
+
+ * config/iq2000/iq2000.c (expand_one_builtin): Pass entire CALL_EXPR
+ instead of arglist. Use new CALL_EXPR accessors. Fix callers.
+ (iq2000_expand_builtin): Use new CALL_EXPR accessors.
+
+ * config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Use
+ build_call_expr.
+ * config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Likewise.
+ (rs6000_expand_unop_builtin): Pass entire CALL_EXPR instead of
+ arglist. Use new CALL_EXPR accessors. Fix callers.
+ (altivec_expand_abs_builtin): Likewise.
+ (rs6000_expand_binop_builtin): Likewise.
+ (altivec_expand_predicate_builtin): Likewise.
+ (altivec_expand_lv_builtin): Likewise.
+ (spe_expand_stv_builtin): Likewise.
+ (altivec_expand_stv_builtin): Likewise.
+ (rs6000_expand_ternop_builtin): Likewise.
+ (altivec_expand_ld_builtin): Use new CALL_EXPR accessors.
+ (altivec_expand_st_builtin): Likewise.
+ (altivec_expand_dst_builtin): Likewise.
+ (altivec_expand_vec_init_builtin): Pass entire CALL_EXPR instead of
+ arglist. Use new CALL_EXPR accessors. Fix callers.
+ (altivec_expand_vec_set_builtin): Likewise.
+ (altivec_expand_vec_ext_builtin): Likewise.
+ (altivec_expand_builtin): Use new CALL_EXPR accessors.
+ (spe_expand_builtin): Likewise.
+ (spe_expand_predicate_builtin): Pass entire CALL_EXPR instead of
+ arglist. Use new CALL_EXPR accessors. Fix callers.
+ (spe_expand_evsel_builtin): Likewise.
+ (rs6000_expand_builtin): Use new CALL_EXPR accessors. VCFUX and
+ FCFSX cases must construct whole new CALL_EXPR, not just arglist.
+
+ * config/arm/arm.c (arm_expand_binop_builtin): Pass entire CALL_EXPR
+ instead of arglist. Use new CALL_EXPR accessors. Fix callers.
+ (arm_expand_unop_builtin): Likewise.
+ (arm_expand_builtin): Use new CALL_EXPR accessors.
+
+ * config/mips/mips.c (mips_expand_builtin): Use new CALL_EXPR
+ accessors.
+
+ * config/bfin/bfin.c (bfin_expand_binop_builtin): Pass entire CALL_EXPR
+ instead of arglist. Use new CALL_EXPR accessors. Fix callers.
+ (bfin_expand_unop_builtin): Likewise.
+ (bfin_expand_builtin): Use new CALL_EXPR accessors.
+
+2007-02-15 Sandra Loosemore <sandra@codesourcery.com>
+ Brooks Moses <brooks.moses@codesourcery.com>
+ Lee Millward <lee.millward@codesourcery.com>
+
+ * c-semantics.c (build_stmt): Add internal diagnostic check.
+
+ * c-pretty-print.c (pp_c_postfix_expression): Use new CALL_EXPR
+ accessors. Print arguments explicitly instead of as a list.
+
+ * c-typeck.c (build_function_call): Use new CALL_EXPR constructors.
+
+ * c-omp.c (c_finish_omp_barrier): Use build_call_expr.
+ (c_finish_omp_flish): Likewise.
+
+ * c-common.c (verify_tree): Use new CALL_EXPR accessors. Traverse
+ arguments explicitly instead of as a list. Use TREE_OPERAND_LENGTH
+ instead of TREE_CODE_LENGTH.
+ (check_function_arguments_recurse): Use new CALL_EXPR accessors.
+ (c_warn_unused_result): Likewise.
+
+2007-02-15 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR c/26494
+ * doc/invoke.texi (Warning Options): Remove
+ -Werror-implicit-function-declaration.
+ (Wimplicit-function-declaration): Update description.
+ * opts.c (common_handle_option): Move handling of -Werror=* to...
+ (enable_warning_as_error): ...here.
+ * opts.h (enable_warning_as_error): Declare.
+ * c-decl.c (implicit_decl_warning): Unless
+ -Wno-implicit-function-declaration is given, emit a pedwarn if
+ -std=c99 or emit a warning if -Wimplicit-function-declaration.
+ * c.opt (Wimplicit-function-declaration): Replace
+ mesg_implicit_function_declaration with
+ warn_implicit_function_declaration.
+ * c-opts.c (c_common_handle_option):
+ -Werror-implicit-function-declaration is exactly equal as
+ -Werror=implicit-function-declaration.
+ (set_Wimplicit): Replace mesg_implicit_function_declaration with
+ warn_implicit_function_declaration.
+ (c_common_post_options): -Wimplict-function-declaration is enabled
+ by default by -std=c99, otherwise is disabled by default.
+ * c-objc-common.c (c_objc_common_init): Remove flawed logic.
+
+2007-02-15 Eric Botcazou <ebotcazou@adacore.com>
+
+ * gimplify.c (gimplify_modify_expr): During gimplification, attach a
+ DECL on the rhs to a DECL on the lhs for debug info purposes if the
+ former is ignored but not the latter.
+
+2007-02-15 Eric Botcazou <ebotcazou@adacore.com>
+
+ * expr.c (expand_expr_real_1) <normal_inner_ref>: If a temporary
+ is made and the reference doesn't use the alias set of its type,
+ do not create the temporary using that type.
+
+2007-02-15 Aldy Hernandez <aldyh@redhat.com>
+
+ * jump.c: Remove prototypes for delete_computation and
+ delete_prior_computation.
+
+2007-02-15 Paolo Bonzini <bonzini@gnu.org>
+
+ * jump.c (get_label_after): Delete.
+ (get_label_before, delete_computation, delete_jump,
+ delete_prior_computation, follow_jumps): Move...
+ * reorg.c (delete_computation, delete_prior_computation): ... here...
+ (get_label_before, delete_jump): ... making these static ...
+ (follow_jumps): ... and simplifying this since it only runs after
+ reload.
+ * rtl.h (get_label_after, get_label_before, delete_jump,
+ follow_jumps): Delete prototypes.
+
+2007-02-15 Paolo Bonzini <bonzini@gnu.org>
+
+ * caller-save.c (save_call_clobbered_regs): Do not process sibcalls.
+
+2007-02-15 Nick Clifton <nickc@redhat.com>
+
+ * varasm.c (default_asm_output_anchor): Prepend * to . symbol in
+ order to prevent it from being munged by the target.
+
+2007-02-15 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.md: Remove misleading comment.
+
+2007-02-15 Alexandre Oliva <aoliva@redhat.com>
+
+ * config/frv/frv.md (reload_incc, reload_outcc, reload_incc_uns,
+ reload_outcc_uns, reload_incc_nz, reload_outcc_nz): Remove
+ invalid patterns.
+
+2007-02-15 Alexandre Oliva <aoliva@redhat.com>
+
+ * tree-sra.c (instantiate_missing_elements): Canonicalize
+ bit-field types.
+ (sra_build_assignment): New.
+ (generate_copy_inout, generate_element_copy,
+ generate_element_zero, generate_one_element_init): Use it.
+
+2007-02-15 Alexandre Oliva <aoliva@redhat.com>
+
+ * tree-sra.c (instantiate_missing_elements): Canonicalize
+ bit-field types.
+ (sra_build_assignment): New.
+ (generate_copy_inout, generate_element_copy,
+ generate_element_zero, generate_one_element_init): Use it.
+
+2007-02-15 Alexandre Oliva <aoliva@redhat.com>
+
+ * dwarf2out.c (dwarf2out_finish): Accept namespaces as context of
+ limbo die nodes.
+
+2007-02-14 Joseph Myers <joseph@codesourcery.com>
+
+ * emit-rtl.c (set_mem_attributes_minus_bitpos): Treat complex
+ types as aggregates not scalars.
+ * function.c (assign_stack_temp_for_type): Likewise.
+
+2007-02-14 Roger Sayle <roger@eyesopen.com>
+ Zdenek Dvorak <dvorakz@suse.cz>
+
+ * tree-dump.c (dump_switch_p_1): Require exact match of the option
+ name.
+
+2007-02-14 Zdenek Dvorak <dvorakz@suse.cz>
+
+ * passes.c (next_pass_1): Clear the next field of the copied
+ pass structure.
+
+2007-02-14 Richard Henderson <rth@redhat.com>
+
+ * tree-sra.c (early_sra): New.
+ (decl_can_be_decomposed_p): Deny va_list if early_sra.
+ (tree_sra_early, pass_sra_early): New.
+ * tree-pass.h (pass_sra_early): Declare.
+ * passes.c (init_optimization_passes): Use it.
+
+2007-02-14 Richard Guenther <rguenther@suse.de>
+
+ * flags.h (issue_strict_overflow_warning): Convert to a macro.
+
+2007-02-14 Dorit Nuzman <dorit@il.ibm.com>
+
+ PR tree-optimization/30771
+ * tree-vect-analyze.c (vect_determine_vectorization_factor): Traverse
+ also phi nodes.
+ (vect_analyze_operations): Induction phis can now be marked as
+ used_in_loop.
+ (vect_mark_stmts_to_be_vectorized): No special treatment for phis.
+ Update documentation accordingly.
+
+2007-02-14 Nick Clifton <nickc@redhat.com>
+
+ * builtin-types.def (DEF_FUNCTION_TYPE_x): Do not imply that at
+ most 3 arguments are supported.
+ (DEF_FUNCTION_TYPE_VAR_5): Fix typo in its description.
+
+2007-02-13 Seongbae Park <seongbae.park@gmail.com>
+
+ * bitmap.c (bitmap_and, bitmap_and_compl, bitmap_xor):
+ Ensure dst->current is valid.
+
+2007-02-13 Paul Brook <paul@codesourcery.com>
+
+ * config.gcc: Add arm*-*-uclinux-*eabi.
+ * config/arm/uclinux-elf.h (TARGET_OS_CPP_BUILTINS): Define.
+ (SUBTARGET_EXTRA_LINK_SPEC): Define.
+ (STARTFILE_SPEC, ENDFILE_SPEC): Remove broken -shared handling.
+ (LINK_GCC_C_SEQUENCE_SPEC): Undef.
+ (LINK_SPEC): Define.
+ (LIB_SPEC): Define.
+ * config/arm/arm.c (arm_override_options): Use r9 as EABI PIC
+ register.
+ * config/arm/uclinux-eabi.h: New file.
+ * config/arm/linux-eabi.h (WCHAR_TYPE): Remove.
+ * config/arm/linux-gas.h (WCHAR_TYPE): Use unsigned long on AAPCS
+ based targets.
+
+2007-02-13 Ian Lance Taylor <iant@google.com>
+
+ * common.opt: Add Wstrict-overflow and Wstrict-overflow=.
+ * flags.h (warn_strict_overflow): Declare.
+ (enum warn_strict_overflow_code): Define.
+ (issue_strict_overflow_warning): New static inline function.
+ * opts.c (warn_strict_overflow): New variable.
+ (common_handle_option): Handle OPT_Wstrict_overflow and
+ OPT_Wstrict_overflow_.
+ * c-opts.c (c_common_handle_option): Set warn_strict_overflow for
+ OPT_Wall.
+ * fold-const.c: Include intl.h.
+ (fold_deferring_overflow_warnings): New static variable.
+ (fold_deferred_overflow_warning): New static variable.
+ (fold_deferred_overflow_code): New static variable.
+ (fold_defer_overflow_warnings): New function.
+ (fold_undefer_overflow_warnings): New function.
+ (fold_undefer_and_ignore_overflow_warnings): New function.
+ (fold_deferring_overflow_warnings_p): New function.
+ (fold_overflow_warning): New static function.
+ (make_range): Add strict_overflow_p parameter. Change all
+ callers.
+ (extract_muldiv, extract_muldiv_1): Likewise.
+ (fold_unary) [ABS_EXPR]: Check ABS_EXPR before calling
+ tree_expr_nonnegative_p.
+ (fold_negate_expr): Call fold_overflow_warning.
+ (fold_range_test): Likewise.
+ (fold_comparison): Likewise.
+ (fold_binary): Likewise. Call tree_expr_nonnegative_warnv_p
+ instead of tree_expr_nonnegative_p.
+ (tree_expr_nonnegative_warnv_p): Rename from
+ tree_expr_nonnegative_p, add strict_overflow_p parameter.
+ (tree_expr_nonnegative_p): New function.
+ (tree_expr_nonzero_warnv_p): Rename from tree_expr_nonzero_p, add
+ strict_overflow_p parameter.
+ (tree_expr_nonzero_p): New function.
+ * passes.c (verify_interpass_invariants): New static function.
+ (execute_one_pass): Call it.
+ * tree-ssa-loop-niter.c (expand_simple_operations): Ignore fold
+ warnings.
+ (number_of_iterations_exit, loop_niter_by_eval): Likewise.
+ (estimate_numbers_of_iterations): Likewise.
+ (scev_probably_wraps_p): Likewise.
+ * tree-ssa-ccp.c: Include "toplev.h".
+ (evaluate_stmt): Defer fold overflow warnings until we know we are
+ going to optimize.
+ (struct fold_stmt_r_data): Add stmt field.
+ (fold_stmt_r): Defer fold overflow warnings until we know we
+ optimized.
+ (fold_stmt): Initialize stmt field of fold_stmt_r_data.
+ (fold_stmt_inplace): Likewise.
+ * tree-cfgcleanup.c: Include "toplev.h" rather than "errors.h".
+ (cleanup_control_expr_graph): Defer fold overflow warnings until
+ we know we are going to optimize.
+ * tree-cfg.c (fold_cond_expr_cond): Likewise.
+ * tree-ssa-threadedge.c (simplify_control_stmt_condition):
+ Likewise.
+ * tree-vrp.c (vrp_expr_computes_nonnegative): Call
+ tree_expr_nonnegative_warnv_p instead of tree_expr_nonnegative_p.
+ * tree-ssa-loop-manip.c (create_iv): Likewise.
+ * c-typeck.c (build_conditional_expr): Likewise.
+ (build_binary_op): Likewise.
+ * tree-vrp.c (vrp_expr_computes_nonzero): Call
+ tree_expr_nonzero_warnv_p instead of tree_expr_nonzero_p.
+ (extract_range_from_unary_expr): Likewise.
+ * simplify-rtx.c (simplify_const_relational_operation): Warn when
+ assuming that signed overflow does not occur.
+ * c-common.c (pointer_int_sum): Ignore fold overflow warnings.
+ * tree.h (tree_expr_nonnegative_warnv_p): Declare.
+ (fold_defer_overflow_warnings): Declare.
+ (fold_undefer_overflow_warnings): Declare.
+ (fold_undefer_and_ignore_overflow_warnings): Declare.
+ (fold_deferring_overflow_warnings_p): Declare.
+ (tree_expr_nonzero_warnv_p): Declare.
+ * doc/invoke.texi (Option Summary): Add -Wstrict-overflow to list
+ of warning options.
+ (Warning Options): Document -Wstrict-overflow.
+ * Makefile.in (tree-ssa-threadedge.o): Depend on toplev.h.
+ (tree-ssa-ccp.o): Likewise.
+ (tree-cfgcleanup.o): Change errors.h dependency to toplev.h.
+ (fold-const.o): Depend on intl.h.
+
+2007-02-13 Ian Lance Taylor <iant@google.com>
+
+ PR middle-end/30751
+ * lower-subreg.c (resolve_simple_move): Decompose subregs in
+ addresses.
+
+2007-02-13 Stuart Hastings <stuart@apple.com>
+
+ * gcc/config/i386/i386.md (fixuns_truncdfhi2): Require SSE2.
+
+2007-02-13 Richard Henderson <rth@redhat.com>
+
+ * config/alpha/alpha.c (alpha_stdarg_optimize_hook): Strip
+ handled_component_p before looking for the indirect_ref.
+
+2007-02-13 Richard Henderson <rth@redhat.com>
+
+ * config/i386/i386.md (bswapsi_1): Rename from bswapsi2,
+ remove flags clobber.
+ (bswapsi2): New expander, emit code for !TARGET_BSWAP.
+ (bswaphi_lowpart): New.
+ (bswapdi2): Rename from bswapdi2_rex, remove flags clobber,
+ remove TARGET_BSWAP test. Delete expander of the same name.
+
+ * optabs.c (widen_bswap, expand_doubleword_bswap): New.
+ (expand_unop): Use them.
+
+2007-02-13 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.md (cmpdi_ccno_1_rex64, *cmpsi_ccno_1,
+ *cmphi_ccno_1, *cmpqi_ccno_1, *movsi_xor, *movstricthi_xor,
+ *movstrictqi_xor, *movdi_xor_rex64, *ashldi3_1_rex64,
+ *ashldi3_cmp_rex64, *ashldi3_cconly_rex64, ashlsi3, *ashlsi3_1_zext,
+ *ashlsi3_cmp, *ashlsi3_cconly, *ashlsi3_cmp_zext, *ashlhi3_1_lea,
+ *ashlhi3_1, *ashlhi3_cmp, *ashlhi3_cconly, *ashlqi3_1_lea,
+ *ashlqi3_1, *ashlqi3_cmp, *ashlqi3_cconly): Remove equivalent
+ assembler dialect choice from asm templates.
+
+2007-02-12 Richard Henderson <rth@redhat.com>
+
+ * config/i386/i386.md (fixuns_trunc<SSEMODEF>si_1): New insn.
+ (fixuns_trunc<SSEMODEF>si2): Use it.
+ * config/i386/sse.md (vec_setv4sf_0): Export.
+ * config/i386/i386.c (ix86_build_const_vector): Export.
+ (ix86_split_convert_uns_si_sse): Rename from
+ ix86_expand_convert_uns_si_sse and rewrite as a splitter.
+ * config/i386/i386-protos.h: Update.
+
+2007-02-13 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR c/29521
+ * c-typeck.c (c_finish_return): Improve warning message.
+
+2007-02-12 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ * alias.c (find_symbolic_term): Delete unused function.
+
+2007-02-12 Uros Bizjak <ubizjak@gmail.com>
+
+ * config/i386/i386.md (paritydi2, paritysi2): New expanders.
+ (paritydi2_cmp, paritydi2_cmp): New insn and split patterns.
+ (*parityhi2_cmp, *parityqi2_cmp): New insn patterns.
+
+2007-02-12 Eric Botcazou <ebotcazou@adacore.com>
+
+ * tree.h (DECL_IGNORED_P): Document further effect for FUNCTION_DECL.
+ * cgraphunit.c (cgraph_expand_function): If DECL_IGNORED_P is set on
+ the function, temporarily point the debug interface to the null one.
+
+2007-02-12 Eric Botcazou <ebotcazou@adacore.com>
+
+ * dwarf2out.c (round_up_to_align): New static function.
+ (field_byte_offset): Use it to round the offset.
+
+2007-02-12 Richard Henderson <rth@redhat.com>
+
+ * config/alpha/alpha.md (bswapsi2, bswapdi2): New.
+ (inswl_const): Export.
+
+2007-02-12 Richard Henderson <rth@redhat.com>
+
+ * calls.c (emit_library_call_value_1): If PROMOTE_MODE modifed the
+ result mode of the libcall, convert back to outmode.
+
+2007-02-12 Roger Sayle <roger@eyesopen.com>
+
+ * config/i386/i386.md (*bswapdi2_rex): Renamed from bswapdi2.
+ (bswapdi2): New define_expand to implement 32-bit implementation.
+
+2007-02-12 Nick Clifton <nickc@redhat.com>
+
+ * doc/invoke.texi (Overall Options): Document --help=.
+ * gcc.c (target_help_flag): Rename to print_subprocess_flag.
+ (cc1_options): Pass --help= on to cc1.
+ (display_help): Add description of --help=.
+ (process_command): Add code to handle --help=. Allow translated
+ --help and --target-help switches to be passed on to compiler
+ sub-process.
+ (main): Remove unused if statement.
+ * opts.c (columns): Remove.
+ (LEFT_COLUMN): Define.
+ (wrap_help): Add columns argument.
+ (print_filtered_help): Change parameters to be an include bitmask,
+ an exclude bitmask, an any bitmask and the column width. Move the
+ code to display the params list here. Add code to display the
+ status of options rather than their descriptions if the quiet flag
+ is not active.
+ (print_specific_help): Change parameters to be an include bitmask,
+ an exclude bitmask and an any bitmask. Move code to look up the
+ column width here. Decide upon the title for an options listing.
+ (common_handle_options): Add code to handle --help=. Adapt code
+ for --help and --target-help to use the revised form of the
+ print_specific_help function.
+ (print_help): Delete.
+ (print_param_help): Delete.
+ (print_switch): Delete.
+ * opts.h (cl_lang_count): Add prototype.
+ (CL_PARAMS, CL_WARNING, CL_OPTIMIZATION, CL_MIN_OPTION_CLASS,
+ CL_MAX_OPTION_CLASS): New defines.
+ * optc-gen.awk: Add construction of cl_lang_count.
+ * c.opt: Add Warning attribute to warning options and Optimization
+ attribute to optimization options.
+ * common.opt: Likewise.
+ Add --help=.
+ Add -fhelp and -ftarget-help as aliases for the transformed --help
+ and --target-help options.
+ * opt-functions.awk: Add code to handle Warning and Optimization
+ attributes.
+
+2007-02-12 Richard Henderson <rth@redhat.com>
+
+ * config/alpha/constraints.md: New file.
+ * config/alpha/alpha.c: Include tm-constrs.h.
+ (alpha_const_ok_for_letter_p, alpha_const_double_ok_for_letter_p,
+ alpha_extra_constraint): Remove.
+ (alpha_emit_conditional_branch): Use satisfies_constraint_*.
+ * config/alpha/alpha-protos.h: Update.
+ * config/alpha/alpha.h (REG_CLASS_FROM_LETTER): Remove.
+ (CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P): Remove.
+ (EXTRA_CONSTRAINT): Remove.
+ * config/alpha/alpha.md: Include constraints.md.
+ (adddi splitter): Use satisfies_constraint_*.
+ * config/alpha/predicates.md (add_operand): Likewise.
+ (sext_add_operand, addition_operation): Likewise.
+
+2007-02-12 Dorit Nuzman <dorit@il.ibm.com>
+
+ PR tree-optimization/29145
+ * tree-data-ref.c (base_addr_differ_p): Make us more conservative
+ in our handling of restrict qualified pointers.
+
+2007-02-12 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
+
+ PR middle-end/7651
+ * doc/invoke.texi (Wunused-value): Update description.
+ (Wextra): Delete item.
+ * opts.c (set_Wextra): Don't use the value of Wextra to set the
+ value of Wunused-value.
+ * c-typeck.c (c_process_expr_stmt): Don't check extra_warnings.
+ (c_finish_stmt_expr): Don't check extra_warnings.
+ (emit_side_effect_warnings): The caller is responsible to check
+ warn_unused_value.
+
2007-02-11 Roger Sayle <roger@eyesopen.com>
Matt Thomas <matt@3am-software.com>
mode.
* config/rs6000/rs6000.c (rs6000_builtin_conversion): New.
(TARGET_VECTORIZE_BUILTIN_CONVERSION): Defined.
- (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX or
- ALTIVEC_BUILTIN_VCFSX.
+ (rs6000_expand_builtin): Add handling a case of ALTIVEC_BUILTIN_VCFUX
+ or ALTIVEC_BUILTIN_VCFSX.
2007-02-10 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
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