* c-parse.in (maybe_type_qual): Delete.
(maybe_volatile, simple_asm_expr, asmdef, asm_stmt)
(asm_argument): New grammar rules.
(extdef_1): Use asmdef.
(maybeasm): Move down with other asm rules; use simple_asm_expr.
(xexpr): Move up with other expression rules.
(stmt): Use asm_stmt.
* c-typeck.c (build_asm_expr): New function - body mostly
pulled from build_asm_stmt.
(build_asm_stmt): Just handle tacking on the volatile qualifier.
* c-tree.h (build_asm_expr, build_asm_stmt): Update prototypes.
From-SVN: r77723
2004-02-03 Paolo Bonzini <bonzini@gnu.org>
PR c/11658
PR c/13994
* Makefile.in (c-parse.o, c-convert.o, c-typeck.o): Depend
on langhooks.h.
* objc/Make-lang.in (objc-parse.o): Depend on langhooks.h.
* c-parse.in, c-convert.c, c-typeck.c, objc/objc-act.c:
Include langhooks.h. Replace c_common_truthvalue_conversion
with the truthvalue_conversion language hook throughout.
(expr_no_commas): Call default_conversion before save_expr
for the first term of the production 'x ? : y'.
* c-common.c (c_common_truthvalue_conversion): Remove
obsolete block. Invoke recursively the hook instead
of this function.
* c-convert.c (convert): handle ERROR_MARK_NODE.
* c-typeck.c (build_binary_op): handle ERROR_MARK_NODE
returned by the truthvalue_conversion language hook.
* c-lang.c (LANG_HOOKS_TRUTHVALUE_CONVERSION): Use
c_objc_common_truthvalue_conversion.
* c-objc-common.c (c_objc_common_truthvalue_conversion):
New function.
* c-tree.h (c_objc_common_truthvalue_conversion): Declare it.
* objc/objc-lang.c (LANG_HOOKS_TRUTHVALUE_CONVERSION): Use
c_objc_common_truthvalue_conversion.
From-SVN: r77168
PR c/11234
* c-typeck.c (build_c_cast): If pedantic, warn for conversions
between function and object pointers.
(digest_init): When comparing a pointer to function type to the
target type, only apply TREE_TYPE once to the pointer to function
type.
* except.c (for_each_eh_label_1): Treat data as a pointer to a
function pointer rather than casting it to a function pointer.
(for_each_eh_label): Update caller.
* recog.h (struct insn_data): Use a struct or union for output.
* genoutput.c (output_insn_data): Update.
* final.c (get_insn_template): Update.
testsuite:
* gcc.dg/func-ptr-conv-1.c: New test.
* gcc.dg/weak/weak-6.c, gcc.dg/weak/weak-7.c: Update.
From-SVN: r75595
PR c/6024
* c-typeck.c (comptypes): Only treat enumerated types in the same
translation unit as compatible with each other when they are the
same type.
* doc/extend.texi: Update.
f:
* com.h (ffecom_gfrt_basictype): Correct return type.
testsuite:
* gcc.dg/enum-compat-1.c: New test.
* gcc.c-torture/execute/builtin-types-compatible-p.c: Update.
From-SVN: r75521
2004-01-02 Andrew Pinski <pinskia@physics.uc.edu>
* c-typeck.c (finish_init): Free spelling_base before
setting it again.
* cfgloop.c (flow_loops_find): Always free the sbitmap
headers.
* predict.c (estimate_probability): Free bbs after being
done with it.
From-SVN: r75337
PR c/12085
* c-typeck.c (build_function_call): Issue a warning if a
function is called through an incompatible prototype and
replace the call by a trap in this case.
From-SVN: r74874
* c-typeck.c (c_convert_parm_for_inlining): Add argnum, which
is the argumnt we are processing so that warnings and errors
will have that information.
* c-tree.h (c_convert_parm_for_inlining): Add argnum.
* lang-hooks-def.h
(lhd_tree_inlining_convert_parm_for_inlining): Likewse.
* langhooks.c (lhd_tree_inlining_convert_parm_for_inlining): Likewise.
* langhooks.h (convert_parm_for_inlining): Likewise.
* tree-inline.c (initialize_inlined_parameters): Compute and
pass argnum down.
From-SVN: r73507
* c-typeck.c (pedantic_lvalue_warning): Deprecate compound
expressions as lvalues.
(internal_build_compound_expr): Remove special handling for
non-pedantic case.
* doc/extend.texi: Document that all extended lvalues are now
deprecated.
testsuite:
* gcc.dg/compound-lvalue-1.c: New test.
* gcc.dg/c90-const-expr-2.c, gcc.dg/c99-const-expr-2.c: Remove
some XFAILs.
From-SVN: r73352
* c-typeck.c (pedantic_lvalue_warning): Deprecate use of
conditional expressions as lvalues.
testsuite:
* gcc.dg/cond-lvalue-1.c: New test.
From-SVN: r73273
include:
* obstack.h: Merge the following change from gnulib:
2003-10-21 Paul Eggert <eggert@twinsun.com>
* obstack.h (obstack_1grow_fast): Properly parenthesize arg.
(obstack_ptr_grow_fast, obstack_int_grow_fast):
Don't use lvalue casts, as GCC plans to remove support for them
in GCC 3.5. Reported by Joseph S. Myers. This bug
was also present in the non-GCC version, indicating that this
code had always been buggy and had never been widely used.
(obstack_1grow, obstack_ptr_grow, obstack_int_grow, obstack_blank):
Use the fast variant of each macro, rather than copying the
definiens of the fast variant; that way, we'll be more likely to
catch future bugs in the fast variants.
gcc:
* c-typeck.c (pedantic_lvalue_warning): Unconditionally warn of
deprecation of casts as lvalues.
* fixinc/inclhack.def (obstack_lvalue_cast): New fix.
* fixinc/fixincl.x: Regenerate.
* fixinc/tests/base/obstack.h: New test.
gcc/testsuite:
* gcc.dg/cast-lvalue-1.c: New test.
From-SVN: r72826
PR c/12446
* c-typeck.c (convert_for_assignment): Issue an error for
array to pointer assignment after default conversion.
(digest_init): Likewise.
From-SVN: r72096
2003-09-24 Ziemowit Laski <zlaski@apple.com>
MERGE OF objc-improvements-branch into MAINLINE.
See 'gcc/ChangeLog' and 'gcc/testsuite/ChangeLog' for
the gory details.
From-SVN: r71748
* targhooks.c: New file.
* targhooks.h: New file.
* Makefile.in: Add targhooks.o support.
(function.o): Depend on$(TARGET_H).
(stmt.o): Likewise.
(combine.o): Depend on $(TREE_H) and $(TARGET_H).
* builtins.c (apply_args_size, expand_builtin_apply_args_1,
expand_builtin_apply): Convert to calls.struct_value_rtx hook.
(expand_builtin_saveregs): Convert to
calls.expand_builtin_saveregs hook.
* c-decl.c (start_decl): Handle new calls.promote_prototypes hook
here, instead of ...
(get_parm_info) ... here.
(store_parm_decls_oldstyle): Convert to calls.promote_prototypes
hook.
(finish_function): Handle calls.promote_prototypes hook here too.
* c-typeck.c (convert_arguments): Convert to
calls.promote_prototypes hook.
(c_convert_parm_for_inlining): Likewise.
* calls.c (initialize_argument_information): Convert to
calls.promote_function_args hook.
(expand_call): Convert to calls.struct_value_rtx,
calls.strict_argument_naming,
calls.pretend_outgoing_varargs_named, and
calls.promote_function_return hooks. Pass fndecl to
aggregate_value_p. Initialize CUMULATIVE_ARGS before calling
hooks, so they can use that.
(emit_library_call_value_1): Likewise.
* combine.c (setup_incoming_promotions): Convert to
calls.promote_function_args hook.
* emit-rtl.c: Convert to calls.struct_value_rtx hook.
* expr.c (expand_assignment): Pass call to aggregate_value_p.
(expand_expr): Likewise.
* expr.h: Remove support for SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
RETURN_IN_MEMORY macro defaults.
* final.c (profile_function): Convert to calls.struct_value_rtx
hook.
* function.c (aggregate_value_p): Accept function type tree as
second parameter; try to deduce fntype from it. Convert to
calls.return_in_memory hook.
(assign_parms): Convert to calls.setup_incoming_varargs,
calls.strict_argument_naming, calls.promote_function_args,
calls.pretend_outgoing_varargs_named hooks. Pass fndecl to
aggregate_value_p.
(expand_function_start): Likewise. Convert to
calls.struct_value_rtx hook.
(expand_function_end): Convert to calls.promote_function_return hook.
(allocate_struct_function): Pass fndecl to aggregate_value_p.
* hard-reg-set.h: Update comments to new hook names.
* integrate.c (expand_inline_function): Pass fndecl to aggregate_value_p.
* reg-stack.c (stack_result): Likewise.
* rtl.h (struct_value_rtx, struct_value_incoming_rtx): Delete.
* stmt.c (expand_value_return): Convert to
calls.promote_function_return hook.
* target-def.h: Add TARGET_PROMOTE_FUNCTION_ARGS,
TARGET_PROMOTE_FUNCTION_RETURN, TARGET_PROMOTE_PROTOTYPES,
TARGET_STRUCT_VALUE_RTX, TARGET_RETURN_IN_MEMORY,
TARGET_EXPAND_BUILTIN_SAVEREGS, TARGET_SETUP_INCOMING_VARARGS,
TARGET_STRICT_ARGUMENT_NAMING,
TARGET_PRETEND_OUTGOING_VARARGS_NAMED, and TARGET_CALLS.
* target.h: Likewise.
* tree.h (aggregate_value_p): Also takes a tree to deduce function
attributes from (for target hooks).
* doc/tm.texi (PROMOTE_FUNCTION_ARGS, PROMOTE_FUNCTION_RETURN,
PROMOTE_PROTOTYPES, RETURN_IN_MEMORY, STRUCT_VALUE_REGNUM,
STRUCT_VALUE, STRUCT_VALUE_INCOMING_REGNUM, STRUCT_VALUE_INCOMING,
EXPAND_BUILTIN_SAVEREGS, SETUP_INCOMING_VARARGS,
STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED): Convert
to hooks.
* config/alpha/alpha.c (alpha_output_mi_thunk_osf): Pass function
to aggregate_value_p.
* config/arm/arm.c (arm_init_cumulative_args,
arm_output_mi_thunk): Likewise.
* config/i386/i386.c (ix86_return_pops_args, x86_this_parameter):
Likewise.
* config/mips/mips.c (mips_save_reg_p, mips_expand_prologue,
mips_can_use_return_insn): Likewise.
* config/rs6000/rs6000.c (rs6000_output_mi_thunk): Likewise.
* config/s390/s390.c (s390_output_mi_thunk): Likewise.
* config/sparc/sparc.c (sparc_output_mi_thunk): Pass function to
aggregate_value_p.
* config/story16/stormy16.c (xstormy16_asm_output_mi_thunk): Pass
function to aggregate_value_p.
* objc/objc-act.c (generate_struct_by_value_array): Pass NULL to
aggregate_value_p.
* config/sh/sh-protos.h (sh_builtin_saveregs): Remove.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p, sh_function_arg,
sh_function_arg_advance, sh_pass_in_reg_p): New. * config/sh/sh.c
(sh_handle_renesas_attribute, sh_promote_prototypes,
sh_struct_value_rtx, sh_return_in_memory, sh_builtin_saveregs,
sh_setup_incoming_varargs, sh_strict_argument_naming,
sh_pretend_outgoing_varargs_named): New decls.
(targetm): Add new hooks.
(calc_live_regs): Save MACL and MACH if the function has the
renesas attribute.
(sh_expand_prologue): Support renesas attribute.
(sh_builtin_saveregs): Make static.
(sh_build_va_list): Support renesas attribute.
(sh_va_start): Likewise.
(sh_va_arg): Likewise.
(sh_promote_prototypes): New.
(sh_function_arg): New, moved from sh.h. Support renesas
attribute.
(sh_function_arg_advance): Likewise.
(sh_return_in_memory): Likewise.
(sh_strict_argument_naming): Likewise.
(sh_pretend_outgoing_varargs_named): Likewise.
(sh_struct_value_rtx): New.
(sh_attribute): Add renesas attribute.
(sh_handle_renesas_attribute): New.
(sh_attr_renesas_p, sh_cfun_attr_renesas_p): New.
(sh_ms_bitfield_layout_p): Support renesas attribute also.
(sh_output_mi_thunk): Pass function to aggregate_value_p. *
config/sh/sh.h (TARGET_SWITCHES): Add -mrenesas as an alias for
-mhitachi.
(STRUCT_VALUE_REGNUM, STRUCT_VALUE, RETURN_IN_MEMORY): Moved to
target hooks.
(sh_args): Add renesas_abi flag.
(INIT_CUMULATIVE_ARGS): Set it. Pass fndecl to aggregate_value_p.
(FUNCTION_ARG_ADVANCE, FUNCTION_ARG): Move to sh.c.
(PASS_IN_REG_P): Support renesas attribute. Pass DF and TF on the
stack for the renesas abi.
(STRICT_ARGUMENT_NAMING, PRETEND_OUTGOING_VARARGS_NAMED,
SETUP_INCOMING_VARARGS, EXPAND_BUILTIN_SAVEREGS,
PROMOTE_PROTOTYPES): Moved to sh.c. * config/sh/sh.md (call): Set
call cookie to indicate renesas calls.
* decl.c (finish_function): Pass fndecl to aggregate_value_p.
* misc.c (default_pass_by_ref): Convert to calls.return_in_memory
hook.
From-SVN: r71048
* c-tree.h: Delete COMPARE_DIFFERENT_TU from enumeration.
* c-typeck.c (same_translation_unit_p): New function.
(comptypes): Use it instead of flags parameter to identify
structure types from different translation units.
* c-decl.c (duplicate_decls): Always call comptypes with
COMPTYPE_STRICT flags argument.
(c_reset_state): Set BLOCK_SUPERCONTEXT of the block formed
to file_scope_decl.
From-SVN: r70953
* expr.c (expand_expr): If an ABS_EXPR has a complex type, abort.
* c-typeck.c (build_unary_op): COMPLEX_TYPE is not a valid
typecode for an ABS_EXPR.
* doc/c-tree.texi: Document ABS_EXPR.
From-SVN: r70349
PR c/10602
* c-typeck.c (type_lists_compatible_p): Do not compare
arguments if one of them is an error_mark_node.
* gcc.dg/noncompile/incomplete-2.c: New test.
From-SVN: r69735
* c-decl.c (pushdecl_function_level): Make static, return nothing.
(kept_level_p): Fold into poplevel.
(undeclared_variable): Moved here from c-typeck.c. Export.
* c-tree.h (KEEP_YES, KEEP_NO, KEEP_MAYBE): New #defines.
(undeclared_variable): Prototype here. Don't prototype
kept_level_p nor pushdecl_function_level.
* c-parse.in: Change first argument to poplevel from
"kept_level_p()" to "KEEP_MAYBE".
* c-typeck.c (undeclared_variable): Moved to c-decl.c.
From-SVN: r69540
* fold-const.c (const_binop): Avoid performing the FP operation at
compile-time, if either operand is NaN and we honor signaling NaNs,
or if we're dividing by zero and either flag_trapping_math is set
or the desired mode doesn't support infinities.
(fold_initializer): New function to fold an expression ignoring any
potential run-time exceptions or traps.
* tree.h (fold_initializer): Prototype here.
* c-typeck.c (build_binary_op): Move to the end of the file so
that intializer_stack is in scope. If constructing an initializer,
i.e. when initializer_stack is not NULL, use fold_initializer to
fold expressions.
* simplify-rtx.c (simplify_binary_operation): Likewise, avoid
performing FP operations at compile-time, if they would raise an
exception at run-time.
From-SVN: r69533
* c-decl.c: Fix typos in several comments. Remove all
#if 0 blocks; reindent as needed. Remove unused argument
to declare_parm_level; all callers changed.
* c-parse.in: Update calls to declare_parm_level. Avoid
issuing a double warning in some circumstances.
* c-typeck.c: Update calls to declare_parm_level.
* c-tree.h: Update prototype of declare_parm_level.
* c-pragma.c (apply_pragma_weak): Don't complain about a
redundant #pragma weak.
* objc/objc-act.c (forward_declare_categories,
build_selector_reference_decl, build_class_reference_decl,
build_objc_string_decl, synth_forward_declarations,
build_protocol_reference): Set TREE_PUBLIC on synthetic
forward decl to 0, consistent with eventual definition.
Correct comments to match.
cp:
* pt.c (get_bindings): Make definition consistent with
forward declaration.
From-SVN: r69519
2003-07-16 Andrew Pinski <pinskia@physics.uc.edu>
ChangeLog:
PR c/10962
* ggc.h: Add header guards.
* c-decl.c (finish_struct): Sort fields if
number greater than 15 and there are no
anonymous structs/unions.
* c-common.h: Include ggc.h.
(sorted_fields_type): New struct.
(field_decl_cmp): New prototype.
(resort_sorted_fields): New prototype.
(DECL_DECLARES_TYPE_NON_TEMPLATE_P): New macro.
* c-tree.h: (lang_type): Use pointer to sorted_fields_type
as s, removing other fields.
* c-typeck.c (lookup_field): Use s in lang_type.
These were mostly moved from cp/class.c:
* c-common.c (field_decl_cmp): New static function.
(field_decl_cmp): New function.
(resort_sorted_fields): New function.
cp/ChangeLog:
* class.c (field_decl_cmp): Remove.
(resort_field_decl_cmp): Remove.
(resort_sorted_fields): Remove.
(add_fields_to_vec): Rename to ...
(add_fields_to_record_type): this.
(finish_struct_1): Change to be using
sorted_fields_type's fields.
* cp-tree.h (lang_decl): In lang_decl_u3
change sorted_fields to be a pointer to
sorted_fields_type.
(resort_sorted_fields): Remove prototype.
* search.c (lookup_field_1): Change to be using
sorted_fields_type's fields.
From-SVN: r69470
PR c/10604
* c-common.c (warn_sign_compare): Initialize to -1.
* c-opts.c (c_common_init_options): Don't set warn_sign_compare here.
(c_common_decode_option <OPT_Wall>): Set warn_sign_compare
for C++ only.
(c_common_post_options): Set warn_sign_compare from extra_warnings
if it's still -1 at this point.
* toplev.c (maybe_warn_unused_parameter): New static variable.
(set_Wextra): New static function.
(W_options): Remove "extra".
(decode_W_option): Call set_Wextra.
(independent_decode_option): Likewise.
(set_Wunused): Cooperate with set_Wextra in setting
warn_unused_parameter.
(rest_of_compilation): No need to check extra_warnings as
well as warn_uninitialized.
* c-typeck.c (build_binary_op, build_conditional_expr):
No need to check extra_warnings as well as warn_sign_compare.
(internal_build_compound_expr): No need to check extra_warnings
as well as warn_unused_value.
* function.c (expand_function_end): No need to check extra_warnings
as well as warn_unused_parameter.
* stmt.c (expand_expr_stmt_value): No need to check extra_warnings
as well as warn_unused_value.
* cp/typeck.c (build_x_compound_expr): No need to check
extra_warnings as well as warn_unused_value.
* doc/invoke.texi: Clarify documentation of -Wsign-compare.
* gcc.dg/compare7.c, g++.dg/warn/compare1.C: New testcases.
* Makefile.in: Disable -Werror for gengtype-lex.o.
From-SVN: r66436
2003-04-29 Geoffrey Keating <geoffk@apple.com>
* c-typeck.c (function_types_compatible_p): Ignore incompatible
'volatile' qualifiers on a function's return type in GNU mode.
Index: testsuite/ChangeLog
2003-04-29 Geoffrey Keating <geoffk@apple.com>
* gcc.dg/noreturn-5.c: New file.
* gcc.dg/noreturn-6.c: New file.
From-SVN: r66281
(defer_addressed_constants, output_deferred_addressed_constants): Kill.
(output_constant_def): Remove code predicated on
defer_addressed_constants_flag.
* output.h: Remove prototypes of deleted functions.
* c-typeck.c (constructor_subconstants_deferred): Kill.
(struct initializer_stack): Remove 'deferred' field.
(start_init): Remove all references to the above.
(finish_init): Likewise. Also remove never-executed call to
output_deferred_addressed_constants. Pull assignment to
defstr out of if expression.
From-SVN: r65865
PR optimization/7675
* c-typeck.c (build_external_ref): Set the DECL_NONLOCAL flag
on VAR_DECL, PARM_DECL and FUNCTION_DECL from within
nested functions if they refer to declarations from parent functions.
* stmt.c (expand_decl): Don't put automatic variables in registers
if the DECL_NONLOCAL flag is set.
From-SVN: r65774
2003-04-10 Zack Weinberg <zack@codesourcery.com>
* c-decl.c (struct binding_level): Add shadowed_tags and
function_body; remove this_block, tag_transparent, and
subblocks_tag_transparent; update comments.
(clear_binding_level, lookup_tag_reverse): Kill.
(make_binding_level): Use ggc_alloc_cleared or memset.
(lookup_tag): Remove struct binding_level* parameter. All
callers changed. Just look at IDENTIFIER_TAG_VALUE, and
current_binding_level->tags if asked for thislevel_only or if
we might have to diagnose "struct foo; union foo;"
(pushlevel): Ignore argument. Do not push another binding
level on the transition from the parameters to the top level
of the function body; just tweak the flags and proceed.
(poplevel): Overhaul. Clear IDENTIFIER_TAG_VALUEs; on exiting
a function body, separate the parameter list from the
top-level local variables.
(set_block): Do nothing.
(pushtag): Set IDENTIFIER_TAG_VALUE and add an entry to
shadowed_tags if necessary.
(warn_if_shadowing): Nuke the special case for local shadowing
parameter.
(pushdecl): Do not create a shadow entry if we are replacing
an older decl in the same binding level.
(pushdecl_function_level): Tweak for new way of indicating
function scope.
(shadow_tag_warned): Use TYPE_NAME, not lookup_tag_reverse.
(start_function): Don't set subblocks_tag_transparent.
(finish_function): Fix up the binding_level stack for totally
empty functions. Otherwise, don't call poplevel.
* c-common.c (shadow_warning): MANDATORY argument is no longer
necessary. Always use plain warning.
* c-common.h: Update to match.
* cfglayout.c (scope_to_insns_initialize): Clear block when we
hit the FUNCTION_DECL.
* function.c: Do not create cyclic tree structure.
2003-04-10 Zack Weinberg <zack@codesourcery.com>
* c-tree.h (struct lang_identifier): Replace global_value,
local_value members with symbol_value, tag_value. Kill
implicit_decl and limbo_value.
(IDENTIFIER_GLOBAL_VALUE, IDENTIFIER_LOCAL_VALUE,
IDENTIFIER_LIMBO_VALUE, IDENTIFIER_IMPLICIT_DECL,
C_MISSING_PROTOTYPE_WARNED): Kill.
(IDENTIFIER_SYMBOL_VALUE, IDENTIFIER_TAG_VALUE,
C_DECL_IMPLICIT, C_DECL_ISNT_PROTOTYPE): New.
(C_DECL_ANTICIPATED): Rename to C_DECL_INVISIBLE.
(implicit_decl_warning, lookup_name_current_level,
record_function_scope_shadow): Don't prototype.
(pushdecl_function_level): Prototype.
* c-decl.c (truly_local_externals): New variable.
(struct binding_level): Adjust commentary.
(get_function_binding_level, clear_limbo_values,
record_function_scope_shadow): Kill.
(lookup_name_current_level, implicit_decl_warning): Are now static.
(any_external_decl, record_external_decl): New static functions.
(clone_underlying type): Split out of pushdecl.
(c_print_identifier): Update to match changes to struct
lang_identifier.
(poplevel): Delete #if 0 block. Make externals invisible
instead of clearing their IDENTIFIER_SYMBOL_VALUEs. Don't
call clear_limbo_values. Refer to IDENTIFIER_SYMBOL_VALUE not
IDENTIFIER_GLOBAL_VALUE or IDENTIFIER_LOCAL_VALUE.
(duplicate-decls): For real parm decl after a forward decl,
set TREE_ASM_WRITTEN here. Allow void foo(...) followed by
foo(...) { } with only a warning. Say whether a previous
declaration was implicit.
(warn_if_shadowing): Now handles all shadowing, not just
local-over-local. Clarify comments.
(pushdecl): Rewritten. There is no longer a distinction
between global and local symbol values; they're all
IDENTIFIER_SYMBOL_VALUE. Call record_external_decl on all
DECL_EXTERNAL decls, and use any_external_decl to check
against previous externals. Kill #if 0 blocks. Don't
tolerate error_mark_node being NULL.
(pushdecl_top_level): Handle only those cases which
Objective C (the only user) needs.
(pushdecl_function_level): New function.
(implicitly_declare): Create ordinary decls with
C_DECL_IMPLICIT set. Recycle old decls, however they got
created.
(lookup_name): It's always IDENTIFIER_SYMBOL_VALUE. Return 0
for C_DECL_INVISIBLE symbols.
(lookup_name_current_level): Likewise. Use chain_member.
(c_make_fname_decl): Don't muck with DECL_CONTEXT.
Use pushdecl_function_level.
(builtin_function): Use C_DECL_INVISIBLE.
(start_function): Don't muck with IDENTIFIER_IMPLICIT_DECL.
Use C_DECL_ISNT_PROTOTYPE and C_DECL_IMPLICIT.
(store_parm_decls): It's IDENTIFIER_SYMBOL_VALUE now.
(identifier_global_value): Same. Must scan
global_binding_level in extremis.
* c-typeck.c (undeclared_variable): New static function, split
from build_external_ref.
(build_external_ref): Use DECL_CONTEXT, not
IDENTIFIER_LOCAL_VALUE, to decide whether a local hides
an instance variable. Restructure for clarity.
* objc/objc-act.c: Use identifier_global_value, not
IDENTIFIER_GLOBAL_VALUE.
cp:
* decl.c: Update all calls to shadow_warning.
testsuite:
* gcc.c-torture/execute/builtin-noret-2.c: New.
* gcc.c-torture/execute/builtin-noret-2.x: New.
XFAIL builtin-noret-2.c at -O1 and above.
* gcc.dg/redecl.c: New.
* gcc.dg/Wshadow-1.c: Update error regexps.
From-SVN: r65460