* expr.c (emit_move_insn_1): Only emit clobbers if one of
the outputs is a SUBREG.
* rtlanal.c (reg_overlap_mentioned_p): Revert December 15th
change.
From-SVN: r30979
Fri Oct 29 15:25:07 1999 Arnaud Charlet <charlet@ACT-Europe.FR>
* gcov.c (DIR_SEPARATOR): Provide default.
(output_data): Add test for MS-DOS format absolute filename.
(fancy_abort): Correct program name.
(open_files): Open all files in binary mode.
* libgcc2.c (__bb_exit_func): Likewise.
* profile.c (init_branch_prob): Specify binary when opening files.
* flags.h (flag_unwind_tables): New decl.
* toplev.c (flag_unwind_table): New definition.
(f_options): Add -funwind-tables.
(decode_g_option): Clarify warning when unknown -g option is given.
(rest_of_compilation): If inside an inlined external function,
pretend we are just being declared.
* dwarf2out.c (dwarf2out_do_frame): Check -funwind_tables.
(dwarf2out_frame_finish): Likewise.
Fri Oct 29 06:32:44 1999 Geoffrey Keating <geoffk@cygnus.com>
* flow.c (propagate_block): When the last reference to a label
before an ADDR_VEC is deleted because the reference is a dead
store, delete the ADDR_VEC.
Fri Oct 29 07:44:26 1999 Vasco Pedro <vp@di.fct.unl.pt>
* fold-const.c (merge_ranges): In not in0, but in1, handle
upper bounds equal like subset case.
Thu Oct 28 19:22:24 1999 Douglas Rupp <rupp@gnat.com>
* dbxout.c (dbxout_parms): Generate a second stabs line for parameters
passed in a register but moved to the stack.
Thu Oct 28 19:12:57 1999 Sam Tardieu <tardieu@act-europe.fr>
* gcc.c (pass_exit_codes, greatest_status): New variables.
(struct option_map): Add entry for "--pass-exit-codes".
(execute): Update greatest_status if error.
(display_help): Add documentation for -pass-exit-codes.
(process_command): Handle -pass-exit-codes.
(main): Look at pass_exit_codes and greatest_status on call to exit.
Thu Oct 28 18:06:50 1999 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (find_reloads): Refine test for no input reload
case to not includes reloads emitted after insn.
* function.c (find_temp_slots_from_address): Handle sum involving
a register that points to a temp slot.
(update_temp_slot_address): Make recursive call if both old and
new are PLUS with a common operand.
* calls.c (expand_call): Mark temp slot for result as having
address taken.
* rtlanal.c (reg_referenced_p, case IF_THEN_ELSE): New case.
* gcc.c (process_command): Add standard_exec_prefix with "GCC"
component as well as "BINUTILS".
* integrate.h (copy_rtx_and_substitute): New arg, FOR_LHS.
* integrate.c (copy_rtx_and_substitute): Likewise.
(expand_inline_function, integrate_parm_decls, integrate_decl_tree):
All callers changed.
* unroll.c (inital_reg_note_copy, copy_loop_body): Likewise.
* dbxout.c (dbxout_type, case INTEGER_TYPE_NODE): If can use
gdb extensions, write size of type; also be more consistent
in using references when this is a subtype.
* pa.md (extv, extzv, insv): Use define_expand to reject constant
that is out of range.
* loop.c (unknown_constant_address_altered): New variable.
(prescan_loop): Initialize it.
(note_addr_stored): Set it for RTX_UNCHANGING_P MEM.
(invariant_p, case MEM): Remove handling for volatile and readony;
check new variable if readonly.
(check_dbra_loop): Chdeck unknown_constant_address_altered.
* cse.c (canon_hash, case MEM): Do not record if BLKmode.
(addr_affects_sp_p): Removed from note_mem_written and only
define #ifdef AUTO_INC_DEC.
* alpha.c (input_operand, case ADDRESSOF): Treat as REG.
* regclass.c (record_reg_classes): Properly handle register move
directions.
* varasm.c (initializer_constant_valid_p, case MINUS_EXPR):
Don't think valid if both operands are invalid.
(struct constant_descriptor): New field RTL.
(mark_const_hash_entry): Mark it.
(record_constant{,_rtx}): Initialize it.
(output_constant_def): Allocate RTL in permanent obstack and
save in table.
({record,compare}_constant_1): Modes must match for
CONSTRUCTOR of ARRAY_TYPE.
* c-common.h (initializer_constant_valid_p): Delete decl from here.
* output.h (initializer_constant_valid_p): Move decl to here.
* c-common.c (initializer_constant_valid_p): Delete function from here.
* varasm.c (initializer_constant_valid_p): Move function to here.
* tree.h (STRIP_SIGN_NOPS): New macro.
* fold-const.c (optimize_minmax_comparison): New function.
(invert_truthvalue, case WITH_RECORD_EXPR): New case.
(fold): Use STRIP_SIGN_NOPS instead of STRIP_TYPE_NOPS.
(fold, case EQ_EXPR): Call optimize_minmax_comparison and add
cases with ABS_EXPR, NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR, and
widening conversions.
(fold, case LE_EXPR): Rework changing unsigned to signed comparisons
to look at size of mode, not precision of type; also add missing cases.
(optimize_bit_field_compare, decode_field_reference): Don't try to
optimize COMPONENT_REF of a PLACEHOLDER_EXPR.
* dwarf2out.c (ctype.h): Include.
(dwarf2out_set_demangle_name_func): New function.
(size_of_line_info): Deleted.
(output_line_info): Compute size of line info table from difference
of labels.
(base_type_die, add_name_attribute): Call demangle function, if any.
(field_byte_offset): Use bits per word for variable length fields.
(gen_array_type_die): Add array name.
(gen_subprogram_die): Ignore DECL_INLINE if -fno-inline.
(dwarf2out_add_library_unit_info): New function.
* explow.c (set_stack_check_libfunc): New function.
(stack_check_libfunc): New static variable.
(probe_stack_range): Allow front-end to set up a libfunc to call.
* combine.c (simplify_comparison): When making comparison in wider
mode, check for having commuted an AND and a SUBREG.
(contains_muldiv): New function.
(try_combine): Call it when dividing a PARALLEL.
(simplify_rtx, case TRUNCATE): Don't remove for umulsi3_highpart.
(simplify_comparison, case ASHIFTRT): Recognize sign-extension of
a PLUS.
(record_value_for_reg): If TEM is a binary operation with two CLOBBERs,
use one of the CLOBBERs instead.
(if_then_else_cond): If comparing against zero, just return thing
being compared.
* optabs.c (expand_abs): If machine has MAX, ABS (x) is MAX (x, -x).
Don't generate shifts and subtract if have conditional arithmetic.
* rtl.h (delete_barrier): New declaration.
* jump.c (jump_optimize): Set up to handle conditional call.
In conditional arithmetic case, handle CALL_INSN followed by a BARRIER.
(delete_barrier): New function.
* rtl.c (read_rtx): Call fatal if bad RTL code; check for bad mode.
* recog.c (nonmemory_operand): Accept ADDRESSOF.
* tree.c (build_type_attribute_variant): Push to obstack of
ttype around type_hash_canon call.
* expr.c (placeholder_list): Move decl to file scope.
(expand_expr): Don't force access to volatile just because its
address is taken.
If ignoring reference operations, just expand the operands.
(expand_expr, case COMPONENT_REF): Propagate
EXPAND_CONST_ADDRESS to recursive call when expanding inner.
Refine test for using bitfield operations vs pointer punning.
(expand_expr, case CONVERT_EXPR): If converting to
BLKmode UNION_TYPE from BLKmode, just return inner object.
Use proper mode in store_field call.
Properly set sizes of object to store and total size in store_field
call for convert to union.
(expand_expr, case ARRAY_REF): If OP0 is in a register, put it in
memory (like for ADDR_EXPR). Also, don't put constant in register if
we'll want it in memory.
(readonly_fields_p): New function.
(expand_expr, case INDIRECT_REF): Call it if LHS.
(expand_assignment): Handle a RESULT_DECL where
DECL_RTL is a PARALLEL.
(do_jump, case WITH_RECORD_EXPR): New case.
(get_inner_reference): Always go inside a CONVERT_EXPR
and NOP_EXPR if both modes are the same.
(store_field): Use bitfield operations if size of bitsize is not same
as size of RHS's type.
Check for bitpos not a multiple of alignment in BLKmode case.
Do block move in largest possible alignment.
(store_constructor): Set BITSIZE to -1 for variable size and properly
in case of array of BLKmode.
(expand_expr_unaligned): New function.
(do_compare_and_jump): Call it.
* mips/iris5.h (SWITCHES_NEED_SPACES): New macro.
* collect2.c (main): Only allow -ofoo if SWITCHES_NEED_SPACES
does not include 'o'.
* function.c (instantiate_virtual_regs_1, case SET): Handle case where
both SET_DEST and SET_SRC reference a virtual register.
(gen_mem_addressof): Copy RTX_UNCHANGING_P from new REG to old REG.
* integrate.c (expand_inline_function): Handle case of setting
virtual stack vars register (from built in setjmp); when parameter
lives in memory, expand virtual_{stack_vars,incoming_args}_rtx early.
(subst_constant): Add new parm, MEMONLY.
(expand_inline_function, integrate_parm_decls): Pass new parm.
(integrate_decl_tree): Likewise.
(copy_rtx_and_substitute, case MEM): Do copy RTX_UNCHANGING_P.
(try_constants): Call subst_constants twice, with MEMONLY 0 and 1.
(copy_rtx_and_substitute, case SET): Add explicit calls to
copy_rtx_and_substitute for both sides.
* stmt.c (expand_asm_operands): Don't use TREE_STRING_LENGTH for
constraints.
(pushcase{,_range}): Convert to NOMINAL_TYPE after checking for
within INDEX_TYPE, instead of before.
(fixup_gotos): Use f->target_rtl, not the next insn,
since latter may be from a later fixup.
(expand_value_return): Correctly convert VAL when promoting function
return; support RETURN_REG being a PARALLEL.
(expand_return): When checking for result in regs and having
cleanup, consider PARALLEL in DECL_RTL as being in regs.
From-SVN: r30299
* expr.c (expand_expr, TARGET_EXPR): Set TREE_USED sooner.
* c-decl.c (finish_struct): Use simpler method of
removing elements of a singly-linked list.
From-SVN: r29860
* stmt.c (expand_start_bindings): Allow callers to pass a flag
indicating that no NOTE_INSN_BLOCK_BEG note is required.
(expand_start_target_temps): Use it.
* except.c (expand_eh_region_start_for_decl): Likewise.
* expr.c (expand_expr): Likewise.
From-SVN: r29484
Include function.h in most files. Remove most of the global variables
duplicated in function.h. Add accessor macros for them which access
current_function. Delete INLINE_HEADER rtx and related code, replace
with code using struct function to store inlining related data.
From-SVN: r28626
* expr.c (expand_expr, case PLUS_EXPR): Pass constants through
immed_double_const to ensure they are properly truncated then
sign extended.
From-SVN: r28066
