* fold-const.c (fold_truthop): Verify that the lhs and rhs are
in the same bit position when optimizing bitfield references
which have the same mask.
From-SVN: r25993
* fold-const.c (make_range): If orig_type is unset, set it as soon
as we know the type. Remove now unnecessary set of orig_type for
conversions.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r25959
* fold-const.c (exact_real_inverse): Move variable `float_error'
into the scope where it is used.
(const_binop_1): New static function.
(cb_args): New struct.
(const_binop): Use them in call to `do_float_handler'.
(fold_convert_1): New static function.
(fc_args): New struct.
(fold_convert): Use them in call to `do_float_handler'.
From-SVN: r25776
* c-common.c (declare_function_name): Declare predefinied variable
`__func__'.
* c-decl.c (flag_isoc9x): Set to 1 by default.
(c_decode_option): Handle -std= option. Remove -flang-isoc9x.
(grokdeclarator): Always emit warning about implicit int for ISO C 9x.
* c-parse.in: Allow constructors in ISO C 9x.
Rewrite designator list handling.
Allow [*] parameters.
Don't warn about comma at end of enum definition for ISO C 9x.
* cccp.c (c9x): New variable.
(rest_extension): New variable.
(print_help): Document new -std= option.
(main): Recognize -std= option. Set c9x appropriately.
(create_definition): Recognize ISO C 9x vararg macros.
* gcc.c (default_compilers): Adjust specs for -std options.
(option_map): Add --std.
(display_help): Document -std.
* toplev.c (documented_lang_options): Add -std and remove
-flang-isoc9x.
* c-lex.c (yylex): Recognize hex FP constants and call REAL_VALUE_ATOF
or REAL_VALUE_HTOF based on base of the constants.
* fold-const.c (real_hex_to_f): New function. Replacement function
for hex FP conversion if REAL_ARITHMETIC is not defined.
* real.c (asctoeg): Add handling of hex FP constants.
* real.h: Define REAL_VALUE_HTOF if necessary using ereal_atof or
real_hex_to_f.
Co-Authored-By: Richard Henderson <rth@cygnus.com>
Co-Authored-By: Stephen L Moshier <moshier@world.std.com>
From-SVN: r24049
* Makefile.in (gencheck.o): Depend on gansidecl.h.
* c-common.c (print_char_table): Add missing initializers.
(scan_char_table): Likewise.
(time_char_table): Likewise.
* c-decl.c (c_decode_option): Mark parameter `argc' with
ATTRIBUTE_UNUSED.
(declare_parm_level): Mark parameter `definition_flag' with
ATTRIBUTE_UNUSED.
* c-lex.c (readescape): Use `(unsigned)1' in shift.
(yylex): Likewise. Cast `sizeof' to an (int) when comparing
against one.
* calls.c (store_one_arg): Remove unused parameter `fndecl'. All
callers changed.
(emit_call_1): Mark parameters `fndecl' and `funtype' with
ATTRIBUTE_UNUSED.
(expand_call): Cast result of MIN() to (unsigned int) when
comparing against an unsigned value.
* cccp.c (pcfinclude): Remove unused parameter `limit'. All
callers changed.
(make_definition): Remove unused parameter `op'. All callers
changed.
(create_definition): Cast REST_EXTENSION_LENGTH to (long) when
comparing against the result of pointer arithmetic.
* config/mips/mips.h (FUNCTION_ARG_BOUNDARY): Cast to (unsigned)
when comparing against one.
* dwarf2out.c (dwarf2out_frame_debug): Cast REGNO() and
HARD_FRAME_POINTER_REGNUM to (unsigned) when comparing against
one.
(output_die): Move variable `i' into the scope in which it is
used. Change its type to `unsigned'.
(output_die): Cast the result of `strlen' to (int) when passing it
to ASM_OUTPUT_ASCII().
(output_pubnames): Likewise.
(output_line_info): Likewise.
* emit-rtl.c (global_rtl): Add missing initializers.
* explow.c (promote_mode): Mark parameter `for_call' with
ATTRIBUTE_UNUSED.
* expmed.c (expand_shift): Cast the result of GET_MODE_BITSIZE to
`unsigned HOST_WIDE_INT' when comparing against one.
(synth_mult): Change type of variable `cost' to int.
(emit_store_flag): Use `(unsigned HOST_WIDE_INT) 1' in shift.
* expr.c (copy_blkmode_from_reg): Cast BITS_PER_WORD to (unsigned)
when comparing against one.
(get_inner_reference): Change variable `alignment' to unsigned.
(expand_expr): Cast the result of GET_MODE_ALIGNMENT to (unsigned
int) when comparing against one.
(expand_builtin_setjmp): Change type of variable `i' to size_t.
* fold-const.c (div_and_round_double): Cast BASE to
(HOST_WIDE_INT) when comparing against one.
* gencheck.c: Include gansidecl.h.
(main): Mark parameter `argv' with ATTRIBUTE_UNUSED.
* optabs.c (gen_cond_trap): Mark parameters `code', `op2' and
`tcode' with ATTRIBUTE_UNUSED.
* real.c (edivm): Cast constant value to (unsigned long) in
expression compared against an unsigned value.
* stmt.c (expand_return): Cast BITS_PER_WORD to (unsigned) when
comparing against one.
(expand_end_case): Cast CASE_VALUES_THRESHOLD to (unsigned int)
when comparing against one.
* stor-layout.c (mode_for_size): Cast MAX_FIXED_MODE_SIZE to
(unsigned int) when comparing against one. Likewise for
GET_MODE_BITSIZE.
(smallest_mode_for_size): Likewise.
(save_storage_status): Mark parameter `p' with ATTRIBUTE_UNUSED.
(restore_storage_status): Likewise.
* toplev.c (debug_args): Add missing initializer.
(f_options): Spelling correction. Add missing initializers.
(documented_lang_options): Likewise.
(debug_end_source_file): Mark parameter `lineno' with
ATTRIBUTE_UNUSED.
* tree.c (valid_machine_attribute): Mark parameters `attr_args',
`decl' and `type' with ATTRIBUTE_UNUSED.
* varasm.c (decode_reg_name): Cast `sizeof' expression to (int)
when comparing against one.
(assemble_variable): Mark parameter `top_level' with
ATTRIBUTE_UNUSED.
(assemble_external_libcall): Mark parameter `fun' with
ATTRIBUTE_UNUSED.
(output_constant_pool): Mark parameters `fnname' and `fndecl' with
ATTRIBUTE_UNUSED.
From-SVN: r23054
* Makefile.in (cplus-dep.o): Use cplus-dem.c from libiberty.
* cplus-dem.c: Delete.
* Makefile.in (fold-const.o): depend on $(RTL_H).
* fold-const.c: Include rtl.h to get the prototype for
`set_identifier_local_value'.
* loop.c (express_from_1): Remove unused variable `tmp'.
(combine_givs): cast the first argument of bzero to char *.
* toplev.c (display_help): Remove unused variable `looking_for_start'.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r21785
* expr.c (safe_from_p): Change code to ERROR_MARK only when not
accessing nodes.
* toplev.c (display_help): Add braces to shut up warnings.
* fold-const.c (non_lvalue): Don't deal with null pointer
constants here.
(fold, case COMPOUND_EXPR): Wrap a constant 0 in a NOP_EXPR.
From-SVN: r21698
* loop.h (struct induction): Add no_const_addval.
* loop.c (the_movables, reg_address_cost): New variables.
(init_loop): Init reg_address_cost.
(loop_optimize): Call end_alias_analysis.
(scan_loop): Init the_movables.
(record_giv): Init induction->no_const_addval.
(basic_induction_var) [PLUS]: Use rtx_equal_p instead of ==.
[REG]: Rearrange loop search test to catch more cases.
(general_induction_var): Return success not benefit; take an extra
argument for that. Change all callers.
(simplify_giv_expr) [PLUS]: Always combine invariants. Use sge_plus.
[MULT]: Use rtx_equal_p instead of ==. Combine simple invariants.
[default]: Search the_movables for additional combinations.
(sge_plus_constant, sge_plus): New functions.
(express_from_1): New function.
(express_from): Always define. Rewrite using express_from_1.
(combine_givs_p): Handle more cases. Ignore address cost.
(cmp_combine_givs_stats): New function.
(combine_givs_used_once, combine_givs_benefit_from): New functions.
(combine_givs): Rewrite to do best-fit combination.
* fold-const.c (operand_equal_p): Handle RTL_EXPR.
(fold): Do a complete (A*C)+(B*C) association check.
From-SVN: r21263
* c-common.c (truthvalue_conversion): Protect side effects in the
expression when splitting a complex value.
* fold-const.c (fold): Likewise.
From-SVN: r20580
* gencheck.c: Remove redundant stdio.h include. Add a definition
of xmalloc for when we are forced to link with alloca.o.
* reload1.c (reload_reg_free_for_value_p): Use `(unsigned)1'
instead of `1U'.
* fold-const.c (constant_boolean_node): Make definition static to
match the prototype.
From-SVN: r20261
* fold-const.c (fold, case EQ_EXPR): When folding VAR++ == CONST
or VAR-- == CONST construct a proper mask if VAR is a bitfield.
Cope with CONST being out of range for the bitfield.
From-SVN: r20198
* tree.h (sizetype_tab[2], sbitsizetype, ubitsizetype): Merge all
of these into a single struct, with additional [us]sizetype entries.
* stor-layout.c (set_sizetype): Initialize [us]sizetype.
* fold-const.c (size_int_wide): Don't rely on sizetype_tab being
an array.
From-SVN: r18994
* varasm.c (make_decl_rtl): Update the DECL_ASSEMBLER_NAME for a
entity in a local scope.
* fold-const.c (fold): Call truthvalue_conversion for values which
are folded to boolean type.
From-SVN: r18929
Wed Mar 18 13:46:07 1998 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* fold-const.c (operand_equal_for_comparison_p): See if equal
when nop conversions are removed.
From-SVN: r18672
* fold-const.c: Include "system.h" to get stdlib.h and stdio.h.
(lshift_double): Add parentheses around + or - inside shift.
(rshift_double): Likewise.
(size_int_wide): Explicitly set type of `bit_p' to `int'.
* Makefile.in (fold-const.o): Depend on system.h.
From-SVN: r18057
* tree.c (first_rtl_op): New fn.
(unsave_expr_now): Use it.
* print-tree.c (print_node): Likewise.
* tree.c (has_cleanups): New fn.
* fold-const.c (fold, case CLEANUP_POINT_EXPR): Use it. Be more
conservative about pushing the cleanup point down.
* tree.h: Declare them.
From-SVN: r18023
* expr.c (get_inner_reference): Use sbitsizetype for type sizes.
* fold-const.c (size_int): Replace with
(size_int_wide).
(make_bit_field_ref): Use bitsize_int for bit position.
* stor-layout.c (sizetype): Delete.
(sizetype_tab, sbitsizetype, ubitsizetype): Declare.
(layout_record, layout_union, layout_type):
Use bitsize_int for bit size.
(set_sizetype): New function.
(make_signed_type, make_unsigned_type): Use it.
* c-decl.c (init_decl_processing): Likewise.
* tree.h (size_int): Don't delcare, #define.
(size_int_wide, sizetype_tab, sbitsize, ubitsize): Declare.
(set_sizetype): Declare.
(bitsize_int, size_int_2, BITS_PER_UNIT_LOG, sizetype, bitsizetype):
Define.
* c-typeck.c (c_sizeof, c_sizeof_nowarn, c_size_in_bytes):
Convert result to sizetype.
(really_start_incremental_init, push_init_level):
Set type of constructor_bit_index to sbitsizetype.
(push_init_level): Use unsigned arithmetic to determine padding.
(output_init_element): Likewise.
From-SVN: r17577
