* expr.c (store_field): Remove warning.
(expand_expr, case COMPONENT_REF, case VIEW_CONVERT_EXPR): Likewise.
(highest_pow2_factor, case MIN_EXPR, case MAX_EXPR): Add cases.
(highest_pow2_factor, case *_DIV_EXPR): Only can do something if
divisor constant power of 2.
(highest_pow2_factor, case COMPOUND_EXPR): Look at operand 1.
From-SVN: r47753
* expr.c (store_expr): When copying string constant into array,
use functions that update memrefs instead of computations on
addresses to better track MEMs. Also properly handle 32/64 pointers.
(expand_expr): Use TARGET even if not reg for multi-word CONSTRUCTOR.
(expand_expr, case CONSTRUCTOR): Fix errors in parms to assign_temp.
From-SVN: r47663
* stmt.c (expand_expr_stmt): Keep last_expr_value non-NULL iff
we're interested in the result. Use it to tell whether to
ignore results of enclosed expressions.
(expand_start_stmt_expr): Added new argument, and initialize
last_expr_value accordingly.
* tree.h (expand_start_stmt_expr): Adjusted declaration.
* c-common.c (c_expand_expr): Adjust call.
* expr.c (expand_expr) [EXPR_WFL]: Pass const0_rtx down if
ignoring the result.
From-SVN: r47607
* expr.c (store_expr): When copying a string constant into an
array, reset the known alignment of the MEM for the section to
be cleared to BITS_PER_UNIT.
From-SVN: r47432
* Makefile.in (c-lang.o): Depends on langhooks-def.h.
(expr.o, varasm.o): Depends on langhooks.h.
* c-common.c (c_safe_from_p): Always declare.
(c_expand_expr): Refine when declared.
* c-lang.c (c-common.h): Now include.
(LANG_HOOKS_SAFE_FROM_P): Define new hook.
(c_init): Don't set lang_safe_from_expr.
* expr.c (langhooks.h): Now include.
(lang_safe_from_p): No longer define.
(safe_from_p): Use lang hook.
(expand_expr): Set IGNORE if VOID_TYPE result of VIEW_CONVERT_EXPR too.
(expand_expr, case VIEW_CONVERT_EXPR): Pass ro_modifier down.
* expr.h (lang_expand_constant, lang_safe_from_p): Delete.
* langhooks-def.h (lhd_return_tree, lhd_safe_from_p): New decls.
(LANG_HOOKS_EXPAND_CONSTANT, LANG_HOOKS_SAFE_FROM_P): New hooks.
* langhooks.c (lhd_return_tree, lhd_safe_from_p): New functions.
* langhooks.h (struct lang_hooks): New fields expand_constant
and safe_from_p.
* output.h (output_constant): Size arg is HOST_WIDE_INT.
* stmt.c (expand_decl_init): No longer need to expand constant
for CONST_DECL.
* stor-layout.c (put_pending_size): Don't check for SAVE_EXPR.
* toplev.c (lang_expand_constant): Delete var.
* tree.c (save_expr): Don't put another SAVE_EXPR around simple
operations on SAVE_EXPR.
* varasm.c (langhooks.h): Now include.
(compare_constant_1): Use lang_hooks, not lang_expand_constant.
(record_constant_1, output_addressed_constants): Likewise.
(initializer_constant_valid_p, output_constant): Likewise.
(output_constant_def): Process no-defer of string constant.
(output_addressed_constants, case ADDR_EXPR): Use handled_component_p.
(output_constant): Strip more conversions.
Track our size and pad for the rest.
(array_size_for_constructor): Remove code for non-byte STRING_CST.
(output_constructor): SIZE now HOST_WIDE_INT.
* cp/Make-lang.in (cp-lang.o): Depends on c-common.h.
* cp/cp-lang.c (c-common.h): Include.
(LANG_HOOKS_EXPAND_CONSTANT, LANG_HOOKS_SAFE_FROM_P): New hooks.
* cp/decl.c (cxx_init_decl_processing): Don't set lang_safe_from_p.
* cp/expr.c (init_cplus_expand): Don't set lang_expand_constant.
From-SVN: r47376
* expr.c (expand_expr, case VIEW_CONVERT_EXPR): Refine slightly
and also support TREE_ADDRESSABLE.
* tree.def (VIEW_CONVERT_EXPR): Document TREE_ADDRESSABLE.
From-SVN: r47249
* tree.def (VIEW_CONVERT_EXPR): New tree code.
* tree.h (handled_component_p): New declaration.
* alias.c (handled_component_p): Move function from here ...
* expr.c (handled_component_p): ... to here and non longer static.
(is_zeros_p, case VIEW_CONVERT_EXPR): New case.
(store_field): Remove unneeded MEM_COPY_ATTRIBUTES call.
(get_inner_reference): Handle VIEW_CONVERT_EXPR.
(expand_expr, case VAR_DECL): Clean up handling of re-layout case.
(expand_expr, case VIEW_CONVERT_EXPR): New case.
(expand_expr, cse ADDR_EXPR): No need to copy if already
BIGGEST_ALIGNMENT.
* fold-const.c (fold, case VIEW_CONVERT_EXPR): New case.
* varasm.c (initializer_constant_value_p, case VIEW_CONVERT_EXPR): New.
(output_constant): Handle VIEW_CONVERT_EXPR.
* dwarf2out.c (loc-descriptor_from_tree, add_bound_info):
Add new case for VIEW_CONVERT_EXPR.
From-SVN: r47179
* expr.c (expand_expr, case VAR_DECL): Update alignment of DECL_RTL
after re-laying out decl in incomplete case.
(expand_expr, case ADDR_EXPR): Fix typo in copy case.
From-SVN: r47153
* tree.h (TYPE_ALIGN_OK): New flag.
* emit-rtl.c (set_mem_attributes): Handle it.
* expr.c (emit_single_push_insn): Only set to alias set 0 if
doing sibcall optimization.
(expand_expr, case COMPONENT_REF): Call set_mem_attributes on case
when make temporary.
(expand_expr, case CONVERT_EXPR): Simplify convert-to-union case.
(expand_expr, case ADDR_EXPR): Abort if TYPE_ALIGN_OK and need copy.
From-SVN: r47149
* expr.c (expand_expr, case ADDR_EXPR): Refine test for when to
copy misaligned data.
* varasm.c (assemble_variable): Set alignment into MEM when changed.
From-SVN: r47089
* Makefile.in (expr.o): Depends on insn-attr.h.
* expr.c (insn-attr.h): New include.
(force_operand): If INSN_SCHEDULING, deal with paradoxical SUBREG
of MEM.
(highest_pow2_factor, case INTEGER_CST): Handle negative values.
(expand_expr): Remove unneeded mark_temp_addr_taken calls and
clean up related usage in ADDR_EXPR.
(expand_expr_unaligned): Likewise.
From-SVN: r46980
* expr.c (stor_constructor_field): Always call adjust_address.
Copy TARGET before changing its alias set.
(store_field): Likewise, for TO_RTX.
(get_inner_reference): Stop at PLACEHOLDER_EXPR if can't find
replacement.
(safe_from_p, case ADDR_EXPR): Properly check for conflict.
(find_placeholder): Return 0 if can't find object.
(expand_expr, case PLACEHOLDER_EXPR): Abort if find_placeholder
returns 0.
From-SVN: r46571
* alias.c (can_address_p): No longer static.
* emit-rtl.c (get_mem_attrs): New parameter, MODE; all callers changed.
Return 0 if all parameters are default values.
(set_mem_attributes): Set MEM_KEEP_ALIAS_SET_P.
(adjust_address_1): Try harder to compute a size.
* expr.c (expand_assignment, store_constructor): If can't address,
set MEM_KEEP_ALIAS_SET_P.
(store_constructor_field): Don't change set if MEM_KEEP_ALIAS_SET_P.
(store_field): Likewise.
(store_constructor): Simplify call to store_constructor_field.
* expr.h (can_address_p): New declaration.
* gensupport.c (gen_rtx_CONST_INT): New function.
* rtl.h (MEM_KEEP_ALIAS_SET_P): New macro.
(MEM_SIZE): Get size from mode, if not set and not BLKmode.
(MEM_COPY_ATTRIBUTES): Copy MEM_KEEP_ALIAS_SET_P.
From-SVN: r46487
* builtins.c (expand_builtin_setjmp): Only call convert_memory_address
if needed.
(expand_builtin_longjmp, expand_builtin_alloca): Likewise.
* except.c (expand_builtin_frob_return_addr): Likewise.
(expand_builtin_eh_return): Likewise.
* stmt.c (expand_computed_goto): Likewise.
* explow.c (memory_address): Likewise.
(allocate_dynamic_stack_space): Clean up predicate testing.
(probe_stack_range): Convert SIZE to Pmode.
* calls.c (rtx_for_function_call): Only call convert_memory_address
if needed.
Pass function call operand as ptr_mode, not Pmode.
* expr.c (expand_assignment): Clean up calls to convert_memory
address by only doing so when needed and making offsets Pmode.
(store_constructor, expand_expr, expand_expr_unaligned): Likewise.
* function.c (assign_parms): Ensure address in MEM for RESULT_DECL
is in Pmode, not ptr_mode.
From-SVN: r46448
* alias.c (can_address_p): Compnonents are not addressable if
the containing type has alias set 0.
(get_alias_set): Rework to use STRIP_NOPS.
Only call front-end routine on object, type, or object with
NOPs stripped, not inner values.
Use language hook to call front-end routine.
* builtins.c (get_memory_rtx): Always call set_mem_attributes.
(expand_builtin_apply): Call set_mem_align on MEMs we make.
Don't pass alignment to emit_block_move.
(expand_builtin_memcpy, expand_builtin_va_copy): Likewise.
(expand_builtin_memset): Likewise, but for clear_storage.
* c-common.c (lang_get_alias_set): Renamed to c_common_alias_set
and remove C++ specific parts.
* c-common.h (c_common_get_alias_set): Add declaration.
* c-lang.c (LANG_HOOKS_GET_ALIAS_SET): New macro.
* calls.c (emit_call_1): Fix typo in sibcall_pop case.
(save_fixed_argument_area): Call set_mem_align.
Remove alignment in call to emit_block_move.
(emit_library_call_value_1, store_one_arg): Likewise.
(target_for_arg): Remove; disabled long ago.
* emit-rtl.c (set_mem_attributes): Rework to only call get_mem_attrs
once and similar cleanups.
(offset_address): Use proper introductory comment.
* expr.c (emit_block_move): Use alignment from that of MEM args, not
from explicit operand; all callers changed.
(clear_storage): Likewise.
(expand_assignment): Don't call set_mem_alias_set on to_rtx.
(store_field): Remove kludge on alias set used for to_rtx.
(highest_pow2_factor, case *_DIV_EXPR): Never return 0.
(expand_expr_unaligned): Call set_mem_attributes instead of
set_mem_alias_set.
* expr.h (emit_block_move, clear_storage): Remove ALIGN argument.
* function.c (assign_stack_temp_for_type): Set MEM alignment.
(expand_function_end): Track MEM attributes of trampolines.
* ifcvt.c (noce_try_cmove_arith): Set alignment of new MEM.
* integrate.c (copy_rtx_and_substitute, case CALL): Copy memory
attributes from original.
* langhooks.c (lang_hook_default_get_alias_set): New function.
(hook_get_alias_set_0): New function.
* langhooks.h (hook_get_alias_set_0): New declaration.
(lang_hook_default_get_alias_set): Likewise.
(LANG_HOOKS_GET_ALIAS_SET): New macro; add to initializer.
* reload1.c (alter_reg): Use adjust_address_nv.
* rtl.c (get_mode_alignment): Moved to here.
* rtl.h (MEM_ALIGN): Take default from mode, if not BLKmode, and
change default if unknown from 1 to BITS_PER_UNIT.
* stor-layout.c (get_mode_alignment): Remove from here.
* toplev.h (struct lang_hoks): Add get_alias_set field.
* tree.h (lang_get_alias_set): Delete declaration.
* config/arc/arc.c (arc_setup_incoming_varags): Set MEM alignment.
* config/i386/i386.c (ix86_setup_incoming_varargs): Likewise.
(ix86_va_arg): Likewise.
* config/i960/i960.c (i960_setup_incoming_varargs): Likewise.
* config/pa/pa.c (hppa_builtin_saveregs): Likewise.
* config/sparc/sparc.c (sparc_va_arg): Likewise.
* config/rs6000/rs6000.c (setup_incoming_varargs): Likewise.
(expand_block_move_mem): Remove dead code.
* cp/cp-lang.c (cxx_get_alias_set): New function.
Point LANG_HOOKS_GET_ALIAS_SET to it.
* f/com.c (LANG_HOOKS_GET_ALIAS_SET): New macro.
(lang_get_alias_set): Delete.
* java/lang.c (lang_get_alias_set): Deleted.
From-SVN: r46440
* langhooks.h (LANG_HOOKS_HONOR_READONLY): New macro.
* toplev.h (struct lang_hooks): New field HONOR_READONLY.
* emit-rtl.c (set_mem_attributes): Set RTX_UNCHANGING_P from
TREE_READONLY and TYPE_READONLY if lang_hooks.honor_readonly.
Set alignment from type if INDIRECT_REF.
(adjust_address_1, offset_address): Simplify alignment compuitation.
* expr.c (expand_expr, case INDIRECT_REF): Don't set RTX_UNCHANGING_P
here; done by set_mem_attributes.
From-SVN: r46361
* emit-rtl.c (gen_reg_rtx): Also reallocate reg_decl array.
(offset_address): New function.
(free_emit_status): Free regno_decl.
(init_emit): Pass proper number of elements to xcalloc.
Allocate regno_decl.
(mark_emit_status): Mark regno_decl values.
* expr.c (highest_pow2_factor): New function.
(expand_assigment): Use it and offset_address.
Properly handle ptr_mode vs. Pmode in offset calculation.
(store_constructor, expand_expr_unaligned): Likewise.
(expand_expr, case COMPONENT_EXPR): Likewise.
* expr.h (offset_address): New decl.
* function.h (struct emit_status): Add regno_decl.
(REGNO_DECL): New macro.
* final.c (output_asm_name): Move in file and don't conditionalize
on flag_print_asm_name.
(output_asm_insn): Only call output_asm_name if flag_print_asm_name.
Output names of operands, if known.
* function.c (assign_parms): Set REGNO_DECL.
* integrate.c (integrate_decl_tree): Likewise.
* stmt.c (expand_decl): Likewise.
* regclass.c (reg_scan_mark_refs): Propagate REGNO_DECL for copies.
From-SVN: r46337
* Makefile.in (print-rtl.o): Depend on TREE_H.
* alias.c (get_alias_set): Make two passes over objects to first
see if inner object is access via restricted pointer.
Defer allocating alias set for restricted pointer until here.
Call find_placeholder with second arg nonzero.
Minor cleanups.
* emit-rtl.c (set_mem_attributes): Set more attributes.
(set_mem_align, change_address, adjust_address_1): New functions.
(change_address_1): Now static.
(adjust_address, adjust_address_nv): Deleted.
(replace_equiv_address): Call change_address_1.
* expr.c (get_inner_reference): Handle PLACEHOLDER_EXPR.
(find_placeholder): Get starting point from PLIST arg.
(expand_expr, case PLACEHOLDER_EXPR): Initialize find_placeholder arg.
* expr.h (set_mem_align, change_address, adjust_address_1): New decls.
(adjust_address, adjust_address_nv): New macros.
* print-rtl.c (tree.h): New include.
(print_rtx, case MEM): Print all memory attributes.
From-SVN: r46313
* expr.c (store_expr): When converting a CONST_INT for storage
in a SUBREG, convert it to both SUBREG modes before stripping
the SUBREG.
From-SVN: r46081
* alias.c (get_alias_set): Try to replace PLACEHOLDER_EXPR.
Loop through NOPs, placeholders, and components.
Don't go through NOPs if change mode.
(record_alias_subset): Do nothing if SUBSET and SET are the same.
* emit-rtl.c (set_mem_alias_set): Enable check.
* expr.c (find_placeholder): New function.
(expand_expr, case PLACEHOLDER_EXPR): Use it.
(expand_expr, case COMPONENT_EXPR): Always copy OP0 when we need
to modify it and avoid unneeded copies.
* expr.h (expand_expr): Always define.
(find_placeholder): New declaration.
From-SVN: r45931
* expr.c (push_block): Make sane use of STACK_GROWS_DOWNWARD.
(emit_push_insn): Use specified padding direction when
STACK_PUSH_CODE is POST_INC.
From-SVN: r45352
* stmt.c: Don't include insn-codes.h.
(expand_end_case): Machine specific logic moved to expr.c.
No need to worry about __builtin_classify_type.
(check_for_full_enumeration_handling, emit_case_nodes):
Kill #if 0 blocks.
* builtins.o (expand_builtin_classify_type): Split up so code
can be shared with fold_builtin_classify_type.
(type_to_class, fold_builtin_classify_type): New functions.
(fold_builtins): Handle __builtin_classify_type.
* expr.c (do_tablejump): Now static.
(case_values_threshold, try_casesi, try_tablejump): New;
code mostly from stmt.c (expand_end_case).
(expr.h): Update prototypes.
* Makefile.in (stmt.o): Update dependencies.
From-SVN: r45078
* optabs.h (OTI_flodiv, flodiv_optab): Kill.
* genopinit.c: Put floating point divide insns in sdiv_optab.
* expr.c (expand_expr): Use sdiv_optab, not flodiv_optab.
* config/gofast.h, config/c4x/c4x.h,
config/ia64/hpux_longdouble.h, config/mips/mips.h,
config/pa/long_double.h, config/rs6000/sysv4.h,
config/sparc/sparc.h: Put floating point divide libcalls in sdiv_optab.
* optabs.c (init_optab): Break into new_optab, init_optab, init_optabv.
(init_optabs): Use init_optabv for overflow-trapping optabs.
Don't init flodiv_optab. Give mov_optab, movstrict_optab, and
cmp_optab RTX codes so have_insn_for can find them.
* optabs.c (expand_simple_binop, expand_simple_unop,
have_insn_for, gen_sub3_insn): New interfaces.
* expr.h: Prototype new functions.
(enum optab_methods): Move here from optabs.h.
* builtins.c, combine.c, doloop.c, function.c, ifcvt.c,
loop.c, profile.c, simplify-rtx.c, stmt.c, unroll.c:
Use new functions instead of working directly with optabs.
* doloop.c, ifcvt.c, loop.c, profile.c, simplify-rtx.c,
unroll.c: Don't include optabs.h.
* caller-save.c, combine.c, function.c, stmt.c: Just include
insn-codes.h, not optabs.h.
* Makefile.in: Update dependencies.
* combine.c (make_compound_operation, simplify_comparison):
Fix typos testing for this or that instruction.
From-SVN: r45008
* expr.h: Split out optab- and libfunc-related code to...
* optabs.h, libfuncs.h: ... these new headers.
* Makefile.in (CONFIG_H, EXPR_H): Take out insn-codes.h.
(OPTABS_H): New.
(various .o rules): Add $(OPTABS_H) and/or libfuncs.h to
dependencies.
* mkconfig.sh: Don't include insn-codes.h from config.h.
* reload.h: Use #ifdef GCC_INSN_CODES_H to decide whether
enum insn_code is available. Move reload_in_optab and
reload_out_optab array declarations to optabs.h.
* regmove.c (gen_add3_insn): Move to optabs.c, export from
there, prototype in expr.h.
* gencodes.c: Cleanup: zap global variables, don't use
printf where puts will do, don't bother defining MAX_INSN_CODE
which nothing uses, let CODE_FOR_nothing get its value implicitly.
* genemit.c, genopinit.c: Include optabs.h in generated file.
* genoutput.c: Include insn-codes.h in generated file.
* builtins.c, caller-save.c, combine.c, doloop.c, explow.c,
expmed.c, expr.c, function.c, ifcvt.c, loop.c, optabs.c, profile.c,
reload1.c, simplify-rtx.c, stmt.c, unroll.c, config/alpha/alpha.c,
config/arm/arm.c, config/c4x/c4x.c, config/clipper/clipper.c,
config/i386/i386.c, config/ia64/ia64.c, config/mn10300/mn10300.c,
config/pj/pj.c, config/sh/sh.c, config/sparc/sparc.c:
Include optabs.h.
* builtins.c, calls.c, dwarf2out.c, except.c, expr.c, function.c,
optabs.c, stmt.c, config/c4x/c4x.c, config/clipper/clipper.c,
config/m88k/m88k.c, config/sparc/sparc.c:
Include libfuncs.h.
* reload.c: Include expr.h and optabs.h before reload.h.
* config/alpha/alpha.c: Include tree.h before reload.h.
* config/pa/pa.c: Include expr.h, optabs.h, libfuncs.h,
and reload.h in that order.
* config/sparc/sparc.c: Include debug.h.
* recog.c: Include insn-codes.h.
cp:
* Make-lang.in (cp/except.o): Add libfuncs.h to dependencies.
* except.c: Include libfuncs.h.
java:
* Make-lang.in (java/decl.o): Update dependencies.
* decl.c: Include libfuncs.h, don't include toplev.h.
From-SVN: r44858
* expr.c (expand_expr, case COMPONENT_REF): Don't force using bitfield
extraction if no direct load if either EXPAND_CONST_ADDRESS or
EXPAND_INITIALIZER.
From-SVN: r43897
* expr.c (expand_assignment): When have varying-length object,
make MEM a BLKmode.
(expand_expr, case ADDR_EXPR): Use SAVE_EXPR_RTL after putting
SAVE_EXPR stack in case we had a SUBREG.
From-SVN: r43637
* c-common.h (RETURN_NULLIFIED_P): New macro.
* c-semantics.c (genrtl_return_stmt): Check it.
* cp-tree.h (struct cp_language_function): Add x_return_value.
(current_function_return_value): Now a macro.
* decl.c: Don't define it.
(define_label, finish_case_label): Don't clear it.
(init_decl_processing): Don't register it with GC.
* semantics.c (genrtl_finish_function): Don't check it for
no_return_label. Copy the RTL from the return value to
current_function_return_value and walk, calling...
(nullify_returns_r): ...this new fn.
* typeck.c (check_return_expr): Set current_function_return_value.
* expr.c (clear_storage): Set TREE_NOTHROW on the decl for memset.
(emit_block_move): Likewise.
From-SVN: r43445
* expr.c (expand_expr, case ARRAY_REF): Do not replace
an array element with the known initializing value if it has
side-effects.
* toplev.c (rest_of_compilation): Remove dead code before
purge_addressof.
From-SVN: r43120
* expr.c (expand_expr, case ARRAY_REF): Don't fold constant
access if EXPAND_CONST_ADDRESS or EXPAND_INITIALIZER.
(expand_expr, case COMPONENT_REF): Do copy if misaligned even
if EXPAND_CONST_ADDRESS or EXPAND_INITIALIZER.
From-SVN: r42361
* expmed.c (store_bit_field): Truncate CONST_INTs.
(expand_mult_highpart, expand_divmod): Likewise.
* expr.c (convert_modes, store_field): Likewise.
* integrate.c (expand_inline_function): Use promote_mode() to
determine whether to convert_modes() an argument as signed
or unsigned.
* optabs.c (expand_binop): Get CONST_INT operands
sign-extended for their appropriate modes.
* stmt.c (emit_case_nodes): Convert node values to the
appropriate mode.
(expand_end_case): Convert minval and range to the appropriate
mode.
* unroll.c (loop_iterations): Truncate abs_diff to the mode of
the iteration variable.
* varasm.c (immed_double_const): Don't require words to be
narrower than host wide ints to properly sign-extend
CONST_INTs.
From-SVN: r41285
2001-04-03 Jakub Jelinek <jakub@redhat.com>
David S. Miller <davem@pierdol.cobaltmicro.com>
Andrew MacLeod <amacleod@redhat.com>
Use byte offsets in SUBREGs instead of words.
* alias.c (nonlocal_mentioned_p): Use subreg_regno function.
* caller-save.c (mark_set_regs): Change callers of subreg_hard_regno
to pass new argument.
(add_stored_regs): Use subreg_regno_offset function.
* calls.c (expand_call): For non-paradoxical SUBREG take endianess
into account.
(precompute_arguments): Use gen_lowpart_SUBREG.
* combine.c (try_combine): Replace explicit XEXP with SUBREG_REG.
(combine_simplify_rtx): Rework to use SUBREG_BYTE.
(simplify_set): Rework to use SUBREG_BYTE.
(expand_field_assignment): Use SUBREG_BYTE.
(make_extraction): Use SUBREG_BYTE.
(if_then_else_cond): Use SUBREG_BYTE.
(apply_distributive_law): Use SUBREG_BYTE and fixup subreg comments.
(gen_lowpart_for_combine): Compute full byte offset.
* cse.c (mention_regs): Use SUBREG_BYTE.
(remove_invalid_subreg_refs): Rework to use SUBREG_BYTE.
(canon_hash): Use SUBREG_BYTE.
(fold_rtx): Pass SUBREG_BYTE div UNITS_PER_WORD to operand_subword.
(gen_lowpart_if_possible): Formatting.
* dbxout.c (dbxout_symbol_location): Compute SUBREG hard regnos
correctly.
* dwarf2out.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* dwarfout.c (is_pseudo_reg): Fixup explicit XEXP into SUBREG_REG
(output_mem_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
(output_loc_descriptor): Fixup explicit XEXP into SUBREG_REG
* emit-rtl.c (gen_rtx_SUBREG): New function, used to verify
certain invariants about SUBREGs the compiler creates.
(gen_lowpart_SUBREG): New function.
(subreg_hard_regno): New function to get the final register number.
(gen_lowpart_common): Use SUBREG_BYTE.
(gen_imagpart): Spacing nits.
(subreg_realpart_p): Use SUBREG_BYTE.
(gen_highpart): Use SUBREG_BYTE.
(subreg_lowpart_p): Always compute endian corrected goal offset,
even at the byte level, then compare against that.
(constant_subword): New function, pulled out all constant cases
from operand_subword and changed second argument name to offset.
(operand_subword): Detect non REG/SUBREG/CONCAT/MEM cases early
and call constant_subword to do the work. Return const0_rtx if
looking for a word outside of OP.
(operand_subword_force): Change second arg name to offset.
* expmed.c (store_bit_field): Use SUBREG_BYTE.
(store_split_bit_field): Use SUBREG_BYTE.
(extract_bit_field): Use SUBREG_BYTE.
(extract_split_bit_field): Use SUBREG_BYTE.
(expand_shift): Use SUBREG_BYTE.
* expr.c (store_expr, expand_expr): Use gen_lowpart_SUBREG.
* final.c (alter_subreg) Use subreg_hard_regno and SUBREG_BYTE.
* flow.c (set_noop_p): Use SUBREG_BYTE.
(mark_set_1): Remove ALTER_HARD_SUBREG. Use subreg_regno_offset instead.
* function.c (fixup_var_refs_1): Fixup explicit XEXP into a SUBREG_REG.
(fixup_memory_subreg): Use SUBREG_BYTE and remove byte endian
correction code.
(optimize_bit_field): Use SUBREG_BYTE.
(purge_addressof_1): Use SUBREG_BYTE.
(purge_single_hard_subreg_set): Use subreg_regno_offset function.
(assign_params): Mark arguments SUBREG_PROMOTED_VAR_P if they are
actually promoted by the caller and PROMOTE_FOR_CALLS_ONLY is true.
* gengenrtl.c (special_rtx): Add SUBREG.
* global.c (mark_reg_store): Use SUBREG_BYTE.
(set_preference): Rework to use subreg_regno_offset and SUBREG_BYTE.
* ifcvt (noce_emit_move_insn): Use SUBREG_BYTE.
* integrate.c (copy_rtx_and_substitute): Use SUBREG_BYTE and make sure
final byte offset is congruent to subreg's mode size.
(subst_constants): Use SUBREG_BYTE.
(mark_stores): Use subreg_regno_offset function.
* jump.c (rtx_renumbered_equal_p, true_regnum): Use subreg_regno_offset
function and SUBREG_BYTE.
* local-alloc.c (combine_regs): Use subreg_regno_offset function.
(reg_is_born): Use subreg_hard_regno.
* recog.c (valid_replace_rtx_1): Use SUBREG_BYTE and remove byte
endian correction code. Don't combine subregs unless resulting
offset aligns with type. Fix subreg constant extraction for DImode.
Simplify SUBREG of VOIDmode CONST_DOUBLE.
(general_operand): Remove dead mode_altering_drug code.
(indirect_operand): Use SUBREG_BYTE.
(constrain_operands): Use subreg_regno_offset function.
* reg-stack.c (get_true_reg): Use subreg_regno_offset function.
* regmove.c (regmove_optimize): Use SUBREG_BYTE.
(optimize_reg_copy_3): Use gen_lowpart_SUBREG.
* regs.h (REG_SIZE): Allow target to override.
(REGMODE_NATURAL_SIZE): New macro which target can override.
* reload.c (reload_inner_reg_of_subreg): subreg_regno should be used
on the entire subreg rtx.
(push_reload): Use SUBREG_BYTE in comments and code.
(find_dummy_reload): Use subreg_regno_offset. Only adjust offsets
for hard registers inside subregs.
(operands_match_p): Use subreg_regno_offset.
(find_reloads): Use SUBREG_BYTE and only advance offset for subregs
containing hard regs.
(find_reload_toplev): Use SUBREG_BYTE. Remove byte endian
corrections when fixing up MEM subregs.
(find_reloads_address_1): Use SUBREG_BYTE, subreg_regno, and
subreg_regno_offset where appropriate.
(find_reloads_subreg_address): Use SUBREG_BYTE. Remove
byte endian corrections when fixing up MEM subregs.
(subst_reloads): When combining two subregs, make sure final
offset is congruent to subreg's mode size.
(find_replacement): Use SUBREG_BYTE and subreg_regno_offset.
(refers_to_regno_for_reload_p): Use subreg_regno.
(reg_overlap_mentioned_for_reload_p): Use subreg_regno_offset.
* reload1.c (eliminate_regs) Use SUBREG_BYTE. Remove byte endian
correction code for memory subreg fixups.
(forget_old_reload_1): Use subreg_regno_offset.
(choose_reload_regs): Use subreg_regno.
(emit_input_reload_insns): Use SUBREG_BYTE.
(reload_combine_note_store): Use subreg_regno_offset.
(move2add_note_store): Use subreg_regno_offset.
* resource.c (update_live_status, mark_referenced_resources): Use
subreg_regno function.
(mark_set_resources): Use subreg_regno function.
* rtl.h (SUBREG_WORD): Rename to SUBREG_BYTE.
(subreg_regno_offset, subreg_regno): Define prototypes.
(subreg_hard_regno, constant_subword, gen_rtx_SUBREG): Newi functions.
(gen_lowpart_SUBREG): Add prototype.
* rtl.texi (subreg): Update to reflect new byte offset representation.
Add mentioning of the effect that BYTES_BIG_ENDIAN has on subregs now.
* rtlanal.c (refers_to_regno_p): Use subreg_regno.
(reg_overlap_mentioned_p): Use subreg_regno.
(replace_regs); Make sure final offset of combined subreg is
congruent to size of subreg's mode.
(subreg_regno_offset): New function.
(subreg_regno): New function.
* sched-vis.c (print_value): Change SUBREG_WORD to SUBREG_BYTE.
* sdbout.c (sdbout_symbol): Compute offset using alter_subreg.
* stmt.c (expand_anon_union_decl): Use gen_lowpart_SUBREG.
* tm.texi (ALTER_HARD_SUBREG): Remove, it is now dead.
(SUBREG_REGNO_OFFSET): Describe SUBREG_REGNO_OFFSET overrides.
* config/a29k/a29k.c (gpc_reg_operand): Use subreg_regno.
(a29k_get_reloaded_address): Use SUBREG_BYTE.
(print_operand): Use SUBREG_BYTE.
* config/alpha/alpha.c (print_operand_address): Use SUBREG_BYTE.
* config/arm/arm.c (arm_reload_in_hi): Use SUBREG_BYTE.
(arm_reload_out_hi): Use SUBREG_BYTE.
* config/d30v/d30v.c (d30v_split_double): Use subreg_regno_offset
instead of SUBREG_WORD.
(d30v_print_operand_memory_reference): Use subreg_regno_offset.
* config/dsp16xx/dsp16xx.md (extendqihi2, zero_extendqihi2): Fix
SUBREG creation to use byte offset.
* config/h8300/h8300.md (Unnamed HImode zero extraction and 16bit
inverted load insns): Fix explicit rtl subregs to use byte
offsets.
* config/i370/i370.md (cmpstrsi, movstrsi, mulsi3, divsi3,
udivsi3, umodsi3): Generate SUBREGs with byte offsets.
* config/i860/i860.c (single_insn_src_p): Use SUBREG_BYTE.
* config/i860/i860.md (mulsi3_big): Fixup explicit SUBREGs in rtl
to use byte offsets.
(unnamed fmlow.dd insn): Fixup SUBREGS to use byte offsets.
* config/i960/i960.md (extendhisi2): Generate SUBREGs with byte
offsets, also make sure it is congruent to SUBREG's mode size.
(extendqisi2, extendqihi2, zero_extendhisi2, zero_extendqisi2,
unnamed ldob insn): Generate SUBREGs with byte offset.
(zero_extendqihi2): SUBREG's are byte offsets.
* config/m68hc11/m68hc11.c (m68hc11_gen_lowpart): Use SUBREG_BYTE.
(m68hc11_gen_highpart): Use SUBREG_BYTE.
* config/m68k/m68k.md (zero_extendhisi2, zero_extendqihi2,
zero-extendqisi2): Generate SUBREGs with byte offset.
(umulsidi3, mulsidi3, subreghi1ashrdi_const32,
subregsi1ashrdi_const32, subreg1lshrdi_const32): Fixup explicit
subregs in rtl to use byte offsets.
* config/m88k/m88k.md (extendsidi2): fixup subregs to use byte offset.
* config/mips/mips.c (mips_move_1word): Use subreg_regno_offset.
(mips_move_2words): Use subreg_regno_offset.
(mips_secondary_reload_class): Use subreg_regno_offset.
* config/mips/mips.md (DImode plus, minus, move, and logical op
splits): Fixup explicit subregs in rtl to use byte offsets.
* config/mn10200/mn10200.c (print_operand): Use subreg_regno function.
* config/mn10300/mn10300.c (print_operand): Use subreg_regno function.
* config/ns32k/ns32k.md (udivmoddisi4): Fix explicit subregs in
rtl to use byte offsets.
* config/pa/pa.c (emit_move_sequence): Use SUBREG_BYTE.
* config/pa/pa.md (floatunssisf2, floatunssidf2, mulsi3): fix explicit
subregs to use byte offsets.
* config/pdp11/pdp11.md (zero_extendhisi2, modhi3, modhi3+1):
Fixup explicit subregs in rtl to use byte offsets.
* config/romp/romp.c (memory_offset_in_range_p): Use SUBREG_BYTE
and remove byte endian correction code.
* config/sh/sh.c (output_movedouble): Use subreg_regno.
(gen_ashift_hi): Use SUBREG_BYTE.
(regs_used): Use subreg_regno_offset.
(machine_dependent_reorg): Use subreg_regno_offset.
* config/sh/sh.h (INDEX_REGISTER_RTX_P): Use SUBREG_BYTE.
* config/sh/sh.md (DImode and DFmode move splits): Use subreg_regno.
(movdf_i4): Subregs are byte offsets now.
* config/sparc/sparc.c (ultra_find_type): Use SUBREG_BYTE.
* config/sparc/sparc.h (ALTER_HARD_SUBREG): Removed.
(REGMODE_NATURAL_SIZE): Override.
(REG_SIZE): For SUBREG check float mode on SUBREG_REG's mode.
* config/sparc/sparc.md (TFmode move splits): Generate SUBREGs
with byte offsets.
(zero_extendhisi2, zero_extendqidi2_insn, extendhisi2,
extendqihi2, sign_extendqihi2_insn, sign_extendqisi2_insn,
extendqidi2): Generate SUBREGs with byte offsets, also make sure
it is congruent to SUBREG's mode size.
(smulsi3_highpart_v8plus): Fix explicit subregs in rtl to use byte
offsets.
(cmp_siqi_trunc, cmp_siqi_trunc_set, cmp_diqi_trunc,
cmp_diqi_trunc_set, lshrdi3_v8plus+1, lshrdi3_v8plus+2,
lshrdi3_v8plus+3, lshrdi3_v8plus+4): Use proper
SUBREG_BYTE offset for non-paradoxical subregs in patterns.
* config/v850/v850.c (print_operand, output_move_double): Use
subreg_regno function.
Co-Authored-By: Andrew MacLeod <amacleod@redhat.com>
Co-Authored-By: David S. Miller <davem@pierdol.cobaltmicro.com>
From-SVN: r41058
* expr.c (emit_move_insn_1): Split push of complex value when
no suitable push instruction exist.
* i386.md (QImode move/add/shift patterns): Use ANY_QI_REG_P
instead of QI_REG_P.
From-SVN: r40454
* print-rtl.c (print_rtx): Cast enums to int for comparison.
* c-decl.c (grokdeclarator): Cast enums to int for comparison and
shifts.
* c-format.c (C_STD_VER): Cast to int for comparisons.
(check_function_format): Cast various enums to int for &.
(maybe_read_dollar_number): Likewise.
(check_format_info): Likewise.
(check_format_info_main): Likewise.
* expr.c (emit_move_insn_1): Cast enums to unsigned int for comparison.
(safe_from_p): Likewise.
* varasm.c (const_hash): Cast enum to int for %.
* emit-rtl.c (init_emit_once): Use int loop variable to work around
pcc enum problems with < and ++ operators.
* regclass.c (init_reg_sets_1): Cast enums for comparison.
(choose_hard_reg_mode): Use unsigned int to iterate over CCmodes.
(regclass_init): Change enum class to int to iterate over reg_classes.
* genrecog.c (merge_trees): Cast enums for comparison.
* rtl.h (GET_CODE): Cast to enum rtx_code.
(PUT_CODE): Cast to ENUM_BITFIELD(rtx_code).
(GET_MODE): Cast to enum machine_mode.
(PUT_MODE): Cast to ENUM_BITFIELD(machine_mode).
(GET_NOTE_INSN_NAME): Cast enum to int.
* tree.h (TREE_CODE): Cast to enum tree_code.
(TREE_SET_CODE): Cast VALUE to ENUM_BITFIELD(tree_code).
* timevar.c (timevar_print): Change loop variable id from enum to
unsigned int.
* fixinc/fixincl.c (VLEVEL): Cast enums in comparison to unsigned int.
* config/i386/i386.md: Use PUT_MODE for mode assignment.
* toplev.c (compile_file): Cast enum DFI to int.
(decode_d_option): Likewise.
From-SVN: r40193
* stmt.c (expand_return): Don't return anything if size is zero.
Delete redundant assignment to BYTES.
* expr.c (move_block_from_reg): Do nothing if NREGS is zero.
From-SVN: r39156
* alias.c (rtx_equal_for_memref_p, case ADDRESSOF): Don't assume
args are REG.
* expr.c (store_constructor): Don't look at MEM_ALIAS_SET unless MEM.
* function.c (assign_parms): Use INTVAL for a CONST_INT.
From-SVN: r39139
* alias.c (alias_sets_conflict_p): New function.
(mems_in_disjoint_alias_sets_p): Use it.
(readonly_fields_p): Moved from expr.c; check for record type.
(objects_must_conflict_p): New function.
* calls.c (expand_call): Use assign_temp as much as possible, use
readonly variant if assigned once, and don't set memory attributes.
(emit_library_call_value_1, store_one_arg): Likewise.
* integrate.c (expand_inline_function): Likewise.
* stmt.c (expand_asm_operands, expand_return): Likewise.
* expr.c (copy_blkmode_from_reg, store_constructor): Likewise.
(store_field, save_noncopied_parts, expand_expr): Likewise.
(expand_expr_unaligned): Likewise.
(readonly_fields_p): Moved to alias.c.
(safe_from_p): Rework handling of SAVE_EXPR.
MEMs ony conflict if alias sets conflict; likewise for INDIRECT_REF.
* function.c (struct temp_slot): Delete field ALIAS_SET; add TYPE.
(assign_stack_for_temp): Use objects_must_confict_p.
Set all memory attributes from type, if specified.
(mark_temp_slot): Mark TYPE field.
* tree.h (alias_sets_conflict_p, readonly_fields_p): New decls.
(objects_must_conflict_p): Likewise.
* stmt.c (expand_decl): Don't use assign_stack_temp in error case.
(add_case_node): No need to copy nodes anymore.
From-SVN: r38559
* expr.h (store_by_pieces): Add prototype.
(can_store_by_pieces): Likewise.
* expr.c (struct store_by_pieces): Renamed from clear_by_pieces.
(can_store_by_pieces): New.
(store_by_pieces): New.
(clear_by_pieces): New.
(clear_by_pieces_1): New.
(store_by_pieces_1): Renamed from clear_by_pieces, handle storing
arbitrary compiler generated constants into memory block.
(store_by_pieces_2): Renamed from clear_by_pieces_1, likewise.
* builtins.c (c_readstr): New.
(builtin_memcpy_read_str): New.
(expand_builtin_memcpy): If src is string constant and
emit_block_move would move it by pieces, compute integer constants
from the string and store it into memory block instead.
(builtin_strncpy_read_str): New.
(expand_builtin_strncpy): If N is not constant zero and c_strlen does
not return INTEGER_CST, don't optimize.
If N is larger than strlen(src) + 1, try to copy the string
including padding with store_by_pieces.
(expand_builtin_strcmp): If both arguments have side effects, don't
optimize.
(expand_builtin_fputs): If STR has side effects, don't optimize.
* gcc.c-torture/execute/string-opt-5.c: Add some strcmp and strncpy
tests.
* gcc.c-torture/execute/string-opt-6.c: New test.
From-SVN: r37851
* expr.c (do_compare_and_jump): If op0 was replaced by promoted
integer constant, use type of op1 for comparison.
* g++.old-deja/g++.other/inline17.C: New test.
From-SVN: r37605
* varasm.c (struct deferred_string): New structure.
(const_str_htab): New variable.
(STRHASH): New macro.
(mark_const_str_htab_1, mark_const_str_htab, const_str_htab_hash,
constr_str_htab_eq, const_str_htab_del): New functions.
(output_constant_def): Add DEFER argument, defer string
constants until mark_constant_pool time if requested.
(mark_constant_pool): Walk the insn chain even if const_str_htab is
not empty.
(mark_constants): If a SYMBOL_REF for deferred string is found,
output it and remove from hash table.
(output_addressed_constants): Set DEFER to 0 in call to
output_constant_def.
* rtl.h (STRING_POOL_ADDRESS_P): Define.
(output_constant_def): Adjust prototype.
* expr.c (expand_expr): Set DEFER to 1 in call to output_constant_def.
* gcc.c-torture/execute/20000801-4.c: Make sure the second string is
output.
From-SVN: r37459
* tree.c (make_node, case 't'): Set alignment to that of
char_type_node.
* expr.c (move_by_pieces_ninsns): Abort if some length remains.
From-SVN: r37071
* expr.c (expand_expr, case SAVE_EXPR): Set RTX_UNCHANGING_P on
returned MEM.
(expand_expr_unaligned, case ARRAY_REF): Check that index is
a constant before comparing it; use tree_low_cst.
* tree.c (save_expr): Set TREE_READONLY.
(substitute_expr): Return inside of NON_LVALUE_EXPR.
(build, build1): Set TREE_READONLY if all operands are.
(build_index_type): If upper bound is a negative number, lower
bound is zero and sizetype is unsigned, use upper bound of one and
lower of zero.
From-SVN: r36979
* builtins.c (is_valid_printf_arglist, expand_builtin_printf):
Move functions from here ...
* c-common.c (is_valid_printf_arglist, c_expand_builtin_printf):
... to here.
(c_expand_builtin): New function.
(init_function_format_info): Don't set `check_function_format_ptr'.
(c_common_nodes_and_builtins): Set built_in_class type for
printf/__builtin_printf to BUILT_IN_FRONTEND.
(c_expand_expr): Handle CALL_EXPRs that are front-end builtins.
* c-common.h (build_function_call): Declare.
* expr.c (expand_expr): Pass builtins with class BUILT_IN_FRONTEND
to `lang_expand_expr' rather than `expand_builtin'.
* tree.c (check_function_format_ptr): Delete.
* tree.h (check_function_format_ptr): Likewise.
From-SVN: r36758
* splay-tree.c (splay_tree_predecessor): Fix typo in comment.
Convert the C front-end to use function-at-a-time mode.
* c-common.h: Include splay-tree.h.
(C_DECLARED_LABEL_FLAG): New macro.
(struct language_function): Add x_scope_stmt_stack and
x_function_name_declared_p.
(RECHAIN_STMTS): Move definition.
(lang_statment_code_p): Likewise.
(lang_expand_stmt): Likewise.
(lang_expand_decl_stmt): New variable.
(lang_expand_function_end): Likewise.
(current_scope_stmt_stack): New function.
(add_decl_stmt): Likewise.
(add_scope_stmt): Likewise.
(mark_stmt_tree): Likewise.
(struct c_lang_decl): New structure.
(DECL_SAVED_TREE): Define.
(c_mark_lang_decl): New function.
(c_expand_start_cond): Change prototype.
(c_finish_then): New function.
(c_finish_else): Likewise.
(current_function_name_declared): Remove.
(set_current_function_name_declared): Likewise.
(mark_c_language_function): Declare.
(case_compare): Likewise.
(c_add_case_label): Likewise.
(c_expand_expr): Likewise.
(c_safe_from_p): Likewise.
* c-common.c (lang_expand_function_end): New variable.
(struct if_elt): Add if_stmt.
(c_expand_start_cond): Add the if-statement to the statement-tree,
rather than generating RTL.
(c_finish_then): New function.
(c_expand_start_else): Don't generate RTL.
(c_finish_else): New function.
(c_expand_expr_stmt): Don't generate RTL.
(statement_code_p): Add SCOPE_STMT.
(case_compare): New function.
(c_add_case_label): Likewise.
(mark_stmt_tree): Likewise.
(c_mark_lang_decl): Likewise.
(mark_c_language_function): Likewise.
(c_expand_expr): Likewise.
(c_safe_from_p): Likewise.
* c-decl.c (c_stmt_tree): New variable
(c_scope_stmt_stack): Likewise.
(c_function_name_declared_p): Likewise.
(lang_expand_expr_stmt): Remove.
(poplevel): Don't call output_inline_function for nested
functions.
(pushdecl): Don't set DECL_CONTEXT for a local declaration of an
`extern' function.
(redeclaration_error_message): Change means of computing whether
or not a function is nested.
(lookup_label): Don't call label_rtx.
(init_decl_processing): Add more GC roots.
(start_decl): Add DECL_STMTs to the statement-tree, rather than
calling rest_of_decl_compilation.
(finish_decl): Don't call expand_decl.
(store_parm_decls): Begin the statement-tree, but don't generate
RTL.
(finish_function): Tie off the statement-tree. Call c_expand_body
if appropriate.
(c_expand_body): New function.
(push_c_function_context): Save more information.
(pop_c_function_contxt): Likewise.
(copy_lang_decl): Now that we use DECL_LANG_SPECIFIC, copy it.
(lang_mark_tree): Mark it.
(current_stmt_tree): Adjust.
(current_scope_stmt_stack): New function.
(do_case): Remove.
(set_current_name_declared): Likewise.
(c_begin_compound_stmt): Define.
(c_expand_decl_stmt): Likewise.
* c-lang.c: Include rtl.h and expr.h.
(lang_init): Set more language-specific hooks.
* c-lex.c: Include expr.h.
* c-parse.in: Changes throughout to add statements to the
statement-tree, rather than generating RTL after every statement.
* c-semantics.c (lang_expand_decl_stmt): Define.
(add_decl_stmt): New function.
(add_scope_stmt): Likewise.
(finish_stmt_tree): Tweak.
(genrtl_expr_stmt): Likewise.
(genrtl_decl_stmt): Handle local labels, and call
lang_expand_decl_stmt if required.
(genrtl_for_stmt): Fix line-number handling.
(genrtl_case_label): Handle cleanups.
(genrtl_asm_stmt): Don't call combine_strings.
(genrtl_compound_stmt): Simplify.
(expand_stmt): Handle SCOPE_STMTs.
* c-tree.h (struct lang_decl): New structure.
(C_DECLARED_LABEL_FLAG): Remove.
(c_begin_compound_stmt): Declare.
(c_expand_decl_stmt): Likewise.
(c_expand_start_case): Rename to c_start_case.
(c_finish_case): New function.
* c-typeck.c (start_init): Tweak setting of
constructor_incremental.
(c_expand_asm_operands): Tweak error-handling. Add to the
statement-tree.
(c_expand_return): Add to the statement-tree.
(c_expand_start_case): Rename to ...
(c_start_case): ... this.
(struct c_switch): New type.
(switch_stack): New variable.
(do_case): Simplify.
(c_finish_case): New function.
* dependence.c: Include expr.h.
(enum dependence_type): Change spelling of enumerals.
(check_node_dependence): Adjust.
* expr.h (lang_safe_from_p): Declare.
(safe_from_p): Likewise.
* expr.c (lang_safe_from_p): New variable.
(safe_from_p): Give it external linkage. Use lang_safe_from_p.
* stmt.c (expand_expr_stmt): Avoid clobberring of last_expr_type.
* toplev.c (rest_of_decl_compilation): Robustify.
* tree.c (contains_placeholder_p): Likewise.
* Makefile.in: Update dependencies.
* objc/objc-act.h: Adjust calculation of value for dummy_tree_code.
* objc/objc-act.c: Include rtl.h, expr.h, and c-common.h.
(objc_expand_function_end): New function.
(finish_method_def): Use it.
(init_objc): Initialize more language-specific hooks.
* objc/Make-lang.in: Update dependencies.
* cp-tree.h (struct cp_language_function): Remove
x_scope_stmt_stack and name_declared.
(current_scope_stmt_stack): Remove.
(function_name_declared_p): New macro.
(struct lang_decl_flags): Use c_lang_decl as a base class.
(context): Remove.
(struct lang_decl): Replace saved_tree with context.
(DECL_FRIEND_CONTEXT): Adjust accordingly.
(SET_DECL_FRIEND_CONTEXT): Likewise.
(DECL_VIRTUAL_CONTEXT): Likewise.
(DECL_SAVED_TREE): Remove.
(C_DECLARED_LABEL_FLAG): Likewise.
(cplus_expand_expr_stmt): Don't declare.
(add_decl_stmt): Likewise.
(add_scope_stmt): Likewise.
* decl.c (mark_stmt_tree): Remove.
(case_compare): Likewise.
(finish_case_label): Use c_add_case_label.
(init_decl_processing): Set more language-specific hooks.
(build_enumerator): Fix typo in comment.
(cplus_expand_expr_stmt): Remove.
(mark_lang_function): Use mark_c_language_function.
(lang_mark_tree): Use c_mark_lang_decl.
* decl2.c: Change order of inclusion.
* except.c: Likewise.
* expr.c (cplus_expand_expr): Remove handling of STMT_EXPR. Fall
back on c_expand_expr.
* friend.c: Include expr.h.
* init.c: Change order of inclusion.
* Makefile.in: Update dependencies.
* lex.h (free_lang_decl_chain): Remove.
* optimize.c (maybe_clone_body): Use function_name_declared_p.
* pt.c (build_template_decl): Don't copy DECL_VIRTUAL_CONTEXT if
it doesn't exist.
(instantiate_decl): Use function_name_declared_p.
* semantics.c (lang_expand_expr_stmt): Remove.
(set_current_function_name_declared): Likewise.
(current_function_name_declared): Likewise.
(begin_compound_stmt): Use function_name_declared_p.
(add_decl_stmt): Remove.
(setup_vtbl_ptr): Use function_name_declared_p.
(add_scope_stmt): Remove.
(current_scope_stmt_stack): New function.
(cp_expand_stmt): Don't handle SCOPE_STMTs.
(expand_body): Use function_name_declared_p.
* tree.c (cp_statement_code_p): Don't include SCOPE_STMT.
* typeck.c: Change order of includes.
(convert_sequence): Remove.
From-SVN: r36464
* expr.c (clear_storage): Don't use emit_move_insn unless
either BLKmode or proper size.
(store_constructor): Don't call clear_storage if REG of wrong size.
From-SVN: r36101
* expr.c (store_constructor): Allow variable bounds of array type.
(expand_expr): Don't blow up if type is ERROR_MARK.
* varasm.c (output_constructor): Don't access lower bound of array
type unless need it if index is supplied (so it can be a variable
if no index is supplied).
Use tree_low_cst; use HOST_WIDE_INT for sizes; change BITPOS to POS.
Other minor cleanups.
From-SVN: r36060
* calls.c (expand_call): Don't create a VAR_DECL just to throw it
away.
* expr.c (expand_expr, case TARGET_EXPR): Don't call
mark_addressable.
* tree.h (get_file_function_name): Remove two duplicate
declarations.
* typeck.c (mark_addressable): Remove code that pokes around in
RTL.
From-SVN: r36038
