* calls.c (initialize_argument_information): If an argument has no
stack space associated with it, and BLOCK_REG_PADDING is defined,
use it to decide at which end the argument should be padded.
* function.c (assign_parms): Allocate BLKmode stack slots.
* config/mips/mips-protos.h (mips_pad_arg_upward): Declare.
(mips_pad_reg_upward): Declare.
* config/mips/mips.h (PAD_VARARGS_DOWN): Use FUNCTION_ARG_PADDING.
(CUMULATIVE_ARGS): Remove num_adjusts and adjusts.
(FUNCTION_ARG_PADDING): Use mips_pad_arg_upward.
(BLOCK_REG_PADDING): Use mips_pad_reg_upward.
* config/mips/mips.c (struct mips_arg_info): Remove struct_p.
(mips_expand_call): Remove code for generating structure shifts.
(mips_arg_info): Don't set struct_p. Don't set fpr_p for non-float
types unless using the EABI.
(function_arg_advance): Don't generate shift instructions.
(function_arg): Don't return them. Don't short-circuit the
check for double structure chunks for DFmode arguments.
(mips_pad_arg_upward, mips_pad_reg_upward): New functions.
(mips_expand_prologue): Remove code to emit structure shifts.
* config/mips/irix6-libc-compat.c: Remove workarounds for buggy
structure passing (inet_ntoa, inet_lnaof, inet_netof). Update
comments to say that only structure returns are a problem.
From-SVN: r70843
* doc/tm.texi (BLOCK_REG_PADDING): Describe.
* expr.h (struct locate_and_pad_arg_data): Add where_pad.
(emit_group_load, emit_group_store): Adjust declarations.
Remove most occurrences of #ifdef TREE_CODE.
* expr.c (emit_group_load): Add "type" param, and use
BLOCK_REG_PADDING to determine need for a shift. Optimize non-
aligned accesses if !SLOW_UNALIGNED_ACCESS.
(emit_group_store): Likewise.
(emit_push_insn, expand_assignment, store_expr, expand_expr): Adjust
emit_group_load and emit_group_store calls.
* calls.c (store_unaligned_arguments_into_pseudos): Tidy. Use
BLOCK_REG_PADDING to determine whether we need endian_correction.
(load_register_parameters): Localize vars. Handle shifting of
small values to the correct end of regs. Adjust emit_group_load
call.
(expand_call, emit_library_call_value_1): Adjust emit_group_load
and emit_group_store calls.
* function.c (assign_parms): Set mem alignment for stack slots.
Adjust emit_group_store call. Store values at the "wrong" end
of regs to the stack. Use BLOCK_REG_PADDING.
(locate_and_pad_parm): Save where_pad.
(expand_function_end): Adjust emit_group_load call.
* stmt.c (expand_value_return): Adjust emit_group_load call.
* Makefile.in (calls.o): Depend on $(OPTABS_H).
* config/rs6000/linux64.h (TARGET_LITTLE_ENDIAN): Redefine as 0.
(AGGREGATE_PADDING_FIXED, AGGREGATES_PAD_UPWARD_ALWAYS): Define.
(MUST_PASS_IN_STACK): Define.
(BLOCK_REG_PADDING): Define.
* config/rs6000/rs6000.h (struct rs6000_args): Remove orig_nargs.
(PAD_VARARGS_DOWN): Define in terms of FUNCTION_ARG_PADDING.
* config/rs6000/rs6000.c (init_cumulative_args): Don't set orig_nargs.
(function_arg_padding): !AGGREGATE_PADDING_FIXED compatibility code.
Act on AGGREGATES_PAD_UPWARD_ALWAYS.
From-SVN: r69318
* function.c (assign_parms): Don't recombine complex args if
fnargs is unchanged from orig_fnargs.
(split_complex_args): Return args without complex before copying.
Re-layout the modified parameters.
From-SVN: r69236
* coverage.h (coverage_counter_alloc): New function.
* function.h (struct function): Remove arc_profile flag.
* coverage.c (fn_ident): Remove.
(fn_b_ctrs, no_coverage): New.
(get_coverage_counts): Use current_function_funcdef_no.
(coverage_counter_alloc): New.
(coverage_counter_ref): Adjust.
(coverage_begin_output): Check no_coverage. Use
current_function_funcdef_no.
(coverage_end_function): Likewise.
(create_coverage): Set no_coverage. Set DECL_UNINLINEABLE rather
than clearing flag_inline_functions. Do not clear arc_profile
flag.
* function.c (prepare_function_start): Do not set arc_profile
flag.
* profile.c (instrument_edges): Return number of instrumented
edges. Use a for loop.
(branch_prob): Call coverage_counter_alloc. Make BB_TO_GCOV_INDEX
local to here and simplify. Use profile_arc_flag not arc_profile
flag.
(find_spanning_tree): Reformat.
* toplev.c (rest_of_compilation): Use profile_arc_flags and
flag_test_coverage rather than arc_profile flag.
From-SVN: r66695
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
* calls.c (struct arg_data): Move offset, slot_offset, size and
alignment_pad to struct locate_and_pad_arg_data. Update all refs.
(initialize_argument_information): Adjust call to locate_and_pad_parm.
Delete alignment_pad var. Don't calculate slot_offset here.
(emit_library_call_value_1): Delete alignment_pad, offset and size
vars. Use struct locate_and_pad_arg_data instead. Adjust refs.
Adjust call to locate_and_pad_parm. Don't tweak arg size for
partial in-regs here. Formatting fixes.
* expr.h (struct locate_and_pad_arg_data): New struct.
(locate_and_pad_parm): Adjust declaration.
* function.c (assign_parms): Localize vars. Use "locate" instead of
other arg location vars. Don't invoke FUNCTION_ARG or
FUNCTION_INCOMING_ARG unless pretend_named is different from
named_arg. Heed MUST_PASS_IN_STACK and set up "partial" before
calling locate_and_pad_parm. Adjust locate_and_pad_parm call.
Use slot_offset for stack home of reg parms. Correct test for
parm passed in memory. Formatting fixes.
(locate_and_pad_parm): Add "partial" to params. Replace offset_ptr
arg_size_ptr and alignment pad with "locate". Set slot_offset here.
Correct initial_offset_ptr handling. Localize vars. Always pad
locate->offset even when in_regs.
From-SVN: r66383
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
* function.c (postponed_insns): New.
(purge_addressof_1): Postpone processing of insns if addressofs
are not put into stack.
(purge_addressof): Process postponed insns.
From-SVN: r65380
PR inline-asm/7916
* function.c (instantiate_virtual_regs_lossage): New function.
(instantiate_virtual_regs_1): Use it.
(instantiate_virtual_regs): Do not continue in substition when insn has
been deleted.
From-SVN: r64681
* function.c (assign_parms): For a struct value address passed as
first argument, delay the function's result RTL setup code until
after the emission of parameter conversions.
From-SVN: r64493
* function.c (STACK_ALIGNMENT_NEEDED): New macro. Default to 1.
(assign_stack_local_1): Perform overall stack alignment only when
STACK_ALIGNMENT_NEEDED is non-zero.
* doc/tm.texi (STACK_ALIGNMENT_NEEDED): Document.
* pa.c (compute_frame_size): Rename fsize to size. Account for
alignment to a word boundary before general register save block. Only
account for double-word alignment before floating point register save
block if one or more are saved. Don't allocate space for %r3 when
frame pointer is needed.
(hppa_expand_prologue): Include alignment to word boundary in local
frame size.
* pa.h (STARTING_FRAME_OFFSET): Define to 8 on both 32 and 64-bit ports.
(STACK_ALIGNMENT_NEEDED): Define.
From-SVN: r63771
