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Author SHA1 Message Date
Kazu Hirata
24109c9f28 fold-const.c (fold): When seeing if D & ~C != 0 to fold (A & C) == D into 0, fold ~C. 
* fold-const.c (fold) [EQ_EXPR]: When seeing if D & ~C != 0 to
	fold (A & C) == D into 0, fold ~C.  Similarly, for the case
	where | is used instead of &.

	* testsuite/gcc.dg/tree-ssa/20041002-1.c: New.

From-SVN: r88449
 2004-10-03 15:31:54 +00:00
Eric Christopher
3e6688a77f fold-const.c (tree_swap_operands_p): Remove duplicated code. 
2004-09-29  Eric Christopher  <echristo@redhat.com>

	* fold-const.c (tree_swap_operands_p): Remove duplicated code.

From-SVN: r88299
 2004-09-29 19:47:32 +00:00
Kazu Hirata
ea4b78487c c-typeck.c, [...]: Fix comment formatting. 
* c-typeck.c, defaults.h, dwarf.h, dwarf2out.c, fold-const.c,
	gthr-dce.h, gthr-posix.h, gthr-solaris.h, gthr-win32.h,
	lambda-code.c, lambda-mat.c, libgcc2.c, stmt.c,
	tree-ssa-pre.c, tree-vn.c, tree.h: Fix comment formatting.

From-SVN: r88102
 2004-09-25 14:36:40 +00:00
Dorit Naishlos
7ccf35ed17 tree.def (ALIGN_INDIRECT_REF, [...]): New tree-codes. 
2004-09-23  Dorit Naishlos <dorit@il.ibm.com>

        * tree.def (ALIGN_INDIRECT_REF, MISALIGNED_INDIRECT_REF):
        New tree-codes.
        * tree.h (REF_ORIGINAL): Consider ALIGN_INDIRECT_REF and
        MISALIGNED_INDIRECT_REF.
        * alias.c (get_alias_set, nonoverlapping_memrefs_p): Likewise.
        * emit-rtl.c (mem_expr_equal_p, set_mem_attributes_minus_bitpos):
        Likewise.
        * expr.c (safe_from_p, expand_expr_real_1, rewrite_address_base)
        (find_interesting_uses_address): Likewise.
        * fold-const.c (non_lvalue, operand_equal_p): Likewise.
        (build_fold_addr_expr_with_type): Likewise.
        * gimplify.c (gimplify_addr_expr, gimplify_expr): Likewise.
        * print-rtl.c (print_mem_expr): Likewise.
        * tree-dump.c (dequeue_and_dump): Likewise.
        * tree-eh.c (tree_could_trap_p): Likewise.
        * tree-gimple.c (is_gimple_addressable, get_base_address): Likewise.
        * tree-pretty-print.c (op_prio, op_symbol, dump_generic_node): Likewise.
        * tree-ssa-alias.c (find_ptr_dereference, ptr_is_dereferenced_by):
        Likewise.
        * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
        * tree-ssa-dom.c (record_equivalences_from_stmt): Likewise.
        * tree-ssa-loop-im.c (for_each_index, is_call_clobbered_ref): Likewise.
        * tree-ssa-loop-ivopts.c (find_interesting_uses_address): Likewise.
        (add_address_candidates, rewrite_address_base): Likewise.
        * tree-ssa-operands.c (get_expr_operands, get_indirect_ref_operands):
        Likewise.
        * tree.c (staticp, build1_stat): Likewise.

        * tree.def (REALIGN_LOAD_EXPR, REALIGN_STORE_EXPR): New tree-codes.
        * tree-pretty-print.c (dump_generic_node): Consider REALIGN_LOAD_EXPR.
        * tree-ssa-operands.c (get_expr_operands): Likewise.
        * expr.c (expand_expr_real_1): Likewise.

        * optabs.h (vec_realign_store_optab, vec_realign_load_optab): New
        optabs.
        (OTI_vec_realign_store, OTI_vec_realign_load): New optab_index values
        for the new optabs.
        (expand_ternary_op): New function.
        * genopinit.c (optabs): Handle the new optabs.
        * optabs.c (optab_for_tree_code): Add cases for the new tree-codes.
        (init_optabs): Initialize vec_realign_load_optab.
        (expand_ternary_op): New functions.

        * target-def.h (TARGET_VECTORIZE): New member for struct gcc_target.
        (TARGET_VECTORIZE_MISALIGNED_MEM_OK): New member for targetm.vectorize.
        (TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD): Likewise.
        (TARGET_VECTORIZE_BUILTIN_MASK_FOR_STORE): Likewise.
        * target.h (struct vectorize): New member for struct gcc_target.
        (misaligned_mem_ok): New member for targetm.vectorize.
        (builtin_mask_for_load): Likewise.
        (builtin_mask_for_store): Likewise.
        * targethooks.c (default_vect_misaligned_mem_ok): New function.
        * targethooks.h (default_vect_misaligned_mem_ok): New function.

        * config/rs6000/altivec.md (build_vector_mask_for_load): New
        define_expand.
        (vec_realign_load_v4si, vec_realign_load_v4sf, vec_realign_load_v8hi)
        (vec_realign_load_v16qi): New define_insn.
        * config/rs6000/rs6000.h (ALTIVEC_BUILTIN_MASK_FOR_LOAD):
        (ALTIVEC_BUILTIN_MASK_FOR_STORE): New target builtins.
        * config/rs6000/rs6000.c (altivec_builtin_mask_for_load):
        (altivec_builtin_mask_for_store): New variables.
        (rs6000_builtin_mask_for_load): New function. Implements
        TARGET_VECTORIZE_BUILTIN_MASK_FOR_LOAD.
        (rs6000_builtin_mask_for_store): New function. Implements
        TARGET_VECTORIZE_BUILTIN_MASK_FOR_STORE.
        (rs6000_expand_builtin): Expand the target builtins
        builtin_mask_for_load and builtin_mask_for_store.
        (altivec_init_builtins): Initialize the new target builtins.
        * config/i386/i386.c (ix86_misaligned_mem_ok): New function.
        Implements the target hook TARGET_VECTORIZE_MISALIGNED_MEM_OK.

        * tree-vectorizer.c (vect_create_data_ref): Renamed to
        vect_create_data_ref_ptr. Returns a pointer instead of an array-ref.
        (vect_create_addr_base_for_vector_ref): Additional argument (offset).
        (vectorizable_store): Call vect_create_data_ref_ptr with additional
        arguments, and create an indirect_ref with its return value data_ref.
        Check aligned_access_p.
        (vectorizable_load): Handle misaligned loads, using software-pipelined
        scheme with REALIGN_LOAD_EXPR and ALIGN_INDIRECT_REF if
        vec_realign_load_optab is supported, or using a scheme without
        software-pipelining with MISALIGNED_INDIRECT_REF if the target hook
        misaligned_mem_ok is supported.

        (vect_finish_stmt_generation): Typo.
        (vect_enhance_data_refs_alignment): Rename loop_vinfo to loop_info.
        (vect_analyze_data_refs_alignment): Don't fail vectorization in the
        presence of misaligned loads.
        (vect_analyze_data_ref_access): Add check for constant init.
        (vect_get_symbl_and_dr): Remove duplicate line.
        * tree-vectorizer.h (DR_MISALIGNMENT): Add comment.

From-SVN: r87948
 2004-09-23 14:34:35 +00:00
Diego Novillo
6a97296a06 fold-const.c (fold): Avoid non INTEGER_TYPEs when widening operands in an integer comparison. 
* fold-const.c (fold): Avoid non INTEGER_TYPEs when widening
	operands in an integer comparison.
	* tree-cfg.c (find_taken_edge): Call fold() to determine
	whether the predicate is known.

From-SVN: r87855
 2004-09-22 07:40:12 -04:00
Jeffrey D. Oldham
6615c44615 alias.c (find_base_decl): Remove unreachable case '3' block. 
2004-09-17  Jeffrey D. Oldham  <oldham@codesourcery.com>
	    Zack Weinberg  <zack@codesourcery.com>

	* alias.c (find_base_decl): Remove unreachable case '3' block.
	* expr.c (safe_from_p): Abort if passed a type.
	* tree-gimple.c (recalculate_side_effects): Abort if passed
	anything other than an expression.
	* tree-ssa-pre.c (phi_translate): Return expr immediately if
	is_gimple_min_invariant is true for it.  Reorder cases for clarity.
	Abort on un-handled tree classes.
	(valid_in_set): Likewise.
	* tree.c (tree_code_class_strings): New static data.

	* tree.h (enum tree_code_class): New.
	(tree_code_class_strings): Declare.
	(TREE_CODE_CLASS_STRING, EXCEPTIONAL_CLASS_P, CONSTANT_CLASS_P)
	(REFERENCE_CLASS_P, COMPARISON_CLASS_P, UNARY_CLASS_P, BINARY_CLASS_P)
	(STATEMENT_CLASS_P, EXPRESSION_CLASS_P, IS_TYPE_OR_DECL_P): New macros.
	(TYPE_P, DECL_P, IS_NON_TYPE_CODE_CLASS, IS_EXPR_CODE_CLASS)
	(checking macros, EXPR_LOCATION, SET_EXPR_LOCATION, EXPR_LOCUS): Update.

	* tree.def, c-common.def, objc/objc-tree.def: Use
	tree_code_class enumeration constants instead of code letters.

	* alias.c, builtins.c, c-common.c, c-format.c, c-lang.c, c-pragma.c
	* c-typeck.c, cgraphunit.c, convert.c, dbxout.c, dwarf2out.c
	* emit-rtl.c expr.c, fold-const.c, gimplify.c, lambda-code.c
	* langhooks.c, langhooks.h, predict.c, print-tree.c, reload1.c, stmt.c
	* tree-browser.c, tree-cfg.c, tree-chrec.c, tree-complex.c, tree-dfa.c
	* tree-dump.c, tree-eh.c, tree-gimple.c, tree-inline.c, tree-nested.c
	* tree-outof-ssa.c, tree-pretty-print.c, tree-sra.c, tree-ssa-ccp.c
	* tree-ssa-dce.c, tree-ssa-dom.c, tree-ssa-forwprop.c, tree-ssa-live.c
	* tree-ssa-loop-im.c, tree-ssa-loop-ivopts.c, tree-ssa-operands.c
	* tree-ssa-phiopt.c, tree-ssa-pre.c, tree-ssa-propagate.c
	* tree-ssa.c, tree-ssanames.c, tree-tailcall.c, tree.c, varasm.c
	* config/sol2-c.c, config/arm/arm.c, config/i386/winnt.c
	* config/pa/pa.c, config/pa/pa.h, config/sh/sh.c, objc/objc-lang.c
	Update to match.

	* LANGUAGES: Add note about change.

ada:
	* ada-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* ada-tree.h, decl.c, misc.c, trans.c, utils.c, utils2.c:
	Update for new tree-class enumeration constants.

cp:
	* cp-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* call.c, class.c, cp-gimplify.c, cp-lang.c, cxx-pretty-print.c
	* mangle.c, pt.c, semantics.c, tree.c, typeck.c:
	Update for new tree-class enumeration constants.

fortran:
	* f95-lang.c, trans-expr.c, trans.c: Update for new tree-class
	enumeration constants.

java:
	* java-tree.def: Use tree_code_class enumeration constants
	instead of code letters.
	* java-gimplify.c, jcf-write.c, lang.c, parse.y: Update for
	new tree-class enumeration constants.

treelang:
	* treetree.c: Update for new tree-class enumeration constants.

From-SVN: r87675
 2004-09-17 21:55:02 +00:00
Zdenek Dvorak
2f4675b482 fold-const.c (fold): Fold difference of addresses. 
* fold-const.c (fold): Fold difference of addresses.
	(ptr_difference_const): Moved from tree-ssa-loop-ivopts, based on
	get_inner_reference.
	* tree-ssa-loop-ivopts.c (peel_address): Removed.
	(ptr_difference_const): Moved to fold-const.c.
	(split_address_cost): Use get_inner_reference instead of peel_address.
	(ptr_difference_cost): Change type of diff to HOST_WIDE_INT.
	* tree.h (ptr_difference_const): Export.

	* tree-ssa-loop-ivopts.c (dump_iv, dump_use, dump_cand): Add induction
	variable type to the dump.  Fix indentation.
	(idx_find_step): Handle nonconstant array_ref_element_size and
	array_ref_low_bound.
	(idx_record_use): Handle array_ref_element_size and
	array_ref_low_bound.
	(find_interesting_uses_stmt): Handle memory = nontrivial_expression
	statements correctly.
	(get_computation_at, iv_value): Do not unshare expressions here.
	(rewrite_use_outer): Unshare the expression before it is emitted
	to code.
	* tree-ssa-loop-niter.c (unsigned_type_for, signed_type_for):
	Moved to tree.c.
	* tree.c (unsigned_type_for, signed_type_for): Moved from
	tree-ssa-loop-niter.c.  Use langhooks.
	* tree.h (signed_type_for): Export.

From-SVN: r87601
 2004-09-16 14:58:01 +00:00
Joseph Myers
971801fff6 attribs.c, [...]: Use %<, %> and %q for quoting in diagnostics going through pretty-print.c. 
gcc:
	* attribs.c, builtins.c, c-format.c, c-pch.c, coverage.c,
	except.c, fold-const.c, function.c, langhooks.c, params.c,
	reload.c, reload1.c, stmt.c, stor-layout.c, toplev.c, tree-cfg.c,
	tree-dump.c, tree-mudflap.c, tree.c, varasm.c: Use %<, %> and %q
	for quoting in diagnostics going through pretty-print.c.  Use ''
	for quoting in other diagnostic text.
	* langhooks.c: Include intl.h.  Mark text locating diagnostics for
	translation.
	* Makefile.in (langhooks.o): Update dependencies.
	* pretty-print.h (pp_printf): Mark as accepting GCC diagnostic
	formats.

gcc/testsuite:
	* g++.dg/ext/member-attr.C, g++.dg/warn/deprecated.C,
	gcc.dg/deprecated.c, gcc.dg/noreturn-1.c, gcc.dg/noreturn-4.c:
	Update expected messages.

libmudflap:
	* testsuite/libmudflap.c/pass35-frag.c: Update expected message.

From-SVN: r87563
 2004-09-15 21:48:10 +01:00
Kazu Hirata
8e3c61c577 cgraph.h, [...]: Fix comment typos. 
* cgraph.h, cgraphunit.c, fold-const.c, lambda-mat.c,
	lambda.h, profile.c, tree-optimize.c, tree-sra.c, vec.h: Fix
	comment typos.  Follow spelling conventions.

From-SVN: r87490
 2004-09-14 12:21:44 +00:00
Daniel Jacobowitz
b919325985 fold-const.c (fold_checksum_tree): Ignore TYPE_CACHED_VALUES. 
* fold-const.c (fold_checksum_tree): Ignore TYPE_CACHED_VALUES.
	Only use TYPE_BINFO for aggregates.

From-SVN: r87457
 2004-09-13 23:25:45 +00:00
Richard Henderson
373c0e7f04 re PR c++/16254 (ICE in lower_stmt, at gimple-low.c:205) 
PR c++/16254
        * fold-const.c (fold) <case CLEANUP_POINT_EXPR>: Remove.
        * tree.c, tree.h (has_cleanups): Remove.
cp/
        * semantics.c (maybe_cleanup_point_expr): Don't call fold.
        * typeck.c (condition_conversion): Likewise.

From-SVN: r87407
 2004-09-12 14:36:50 -07:00
Steven Bosscher
05cf561db4 re PR c++/17412 (tree check failure in fold-const) 
PR c++/17412
	* fold-const.c (fold): Do not try to fold the operand of a
	CLEANUP_POINT_EXPR if that operand does itself not have any
	operands.
testsuite/
	* g++.dg/parse/break-in-for.C: New test.

	PR middle-end/17417
	* langhooks.c (lhd_decl_printable_name): Make sure that this
	function is called with is a decl node that has an identifier.
	* tree-pretty-print.c (dump_function_name): New function to
	wrap PRINT_FUNCTION_NAME and dump_decl_name.
	(print_call_name): Use it.

From-SVN: r87363
 2004-09-11 19:48:58 +00:00
Roger Sayle
3ae472c234 re PR middle-end/17024 (ICE in fold_cond_expr_with_comparison, at fold-const.c:4324) 
PR middle-end/17024
	* fold-const.c (fold_cond_expr_with_comparison): Handle unordered
	floating point comparison operators.  Change aborts to gcc_asserts.

	* gcc.dg/pr17024-1.c: New test case.

From-SVN: r87339
 2004-09-11 03:21:22 +00:00
Roger Sayle
049e524f68 re PR middle-end/17055 (ICE while folding int/float vectors) 
PR middle-end/17055
	* fold-const.c (build_zero_vector): New function to construct a
	vector (either floating point or integer) of zeros.
	(fold_convert): Internally, enable conversions of integer zero
	to arbitrary vector types, using the new build_zero_vector.

	* gcc.dg/pr17055-1.c: New test case.

From-SVN: r87272
 2004-09-10 02:39:18 +00:00
Nathan Sidwell
0bccc606b3 final.c (shorten_branches, [...]): Use gcc_assert and gcc_unreachable. 
* final.c (shorten_branches, final, get_insn_template,
	output_alternate_entry_point, final_scan_insn, alter_subreg,
	alter_cond, output_operand, asm_fprintf, final_forward_branch_p,
	leaf_renumber_regs_insn): Use gcc_assert and gcc_unreachable.
	* fix-header.c (lookup_std_proto): Likewise.
	* flow.c (first_insn_after_basic_block_note, verify_wide_reg,
	verify_local_live_at_start, update_life_info, mark_reg,
	calculate_global_regs_live, allocate_reg_life_data,
	init_propagate_block_info, mark_set_regs, flush_reg_cond_reg_1,
	ior_reg_cond, not_reg_cond, and_reg_cond, elim_reg_cond,
	attempt_auto_inc, mark_used_reg, mark_used_regs): Likewise.
	* fold-const.c (force_fit_type, div_and_round_double,
	may_negate_without_overflow_p, int_const_binop, const_binop,
	size_binop, size_diffop, fold_convert_const, fold_convert,
	invert_tree_comparison, swap_tree_comparison,
	comparison_to_compcode, compcode_to_comparison, invert_truthvalue,
	range_binop, make_range, fold_cond_expr_with_comparison,
	fold_div_compare, fold, fold_checksum_tree, fold_negate_const,
	fold_abs_const, fold_not_const, fold_relational_const, round_up,
	round_down): Likewise.
	* function.c (find_function_data, assign_stack_temp_for_type,
	instantiate_virtual_regs_lossage, aggregate_value_p,
	assign_parm_find_entry_rtl, assign_parm_setup_block,
	expand_function_start, expand_function_end, keep_stack_depressed,
	handle_epilogue_set, thread_prologue_and_epilogue_insns): Likewise.

From-SVN: r87192
 2004-09-08 15:44:46 +00:00
Kazu Hirata
8c27b7d4d1 c-common.c, [...]: Fix comment formatting. 
* c-common.c, c-decl.c, combine.c, defaults.h, fold-const.c,
	gimplify.c, gthr-nks.h, hooks.c, lambda-code.c, lambda-mat.c,
	stor-layout.c, target.h, tree-cfg.c, tree-chrec.c,
	tree-if-conv.c, tree-inline.c, tree-into-ssa.c,
	tree-mudflap.c, tree-optimize.c, tree-scalar-evolution.c,
	tree-ssa-alias.c, tree-ssa-ccp.c, tree-ssa-dce.c,
	tree-ssa-pre.c, tree-vectorizer.c, tree-vectorizer.h, tree.h,
	vec.h: Fix comment formatting.

From-SVN: r87105
 2004-09-05 16:05:06 +00:00
Richard Kenner
40b32ef83f revert: fold-const.c (operand_equal_p): Remove code to allow null ARG0/1. 
Revert:
	* fold-const.c (operand_equal_p): Remove code to allow null ARG0/1.
	Define locals macros OP_SAME and OP_SAME_WITH_NULL and use throughout.

From-SVN: r87089
 2004-09-04 15:17:52 -04:00
Richard Kenner
a60749f509 fold-const.c (operand_equal_p): Remove code to allow null ARG0/1. 
* fold-const.c (operand_equal_p): Remove code to allow null ARG0/1.
	Define locals macros OP_SAME and OP_SAME_WITH_NULL and use throughout.

From-SVN: r87082
 2004-09-04 08:35:41 -04:00
Richard Henderson
9969aaf67e re PR middle-end/17258 (gcc.c-torture/compile/20030224-1.c:16: internal compiler error: in expand_expr_addr_expr, at expr.c:6157) 
PR middle-end/17258
        * calls.c (initialize_argument_information): Tighten pass-through
        conditions for pass-by-reference.  Remove dead TARGET_EXPR code.
        Use build_fold_addr_expr.
        (emit_library_call_value_1): Use build_fold_addr_expr.  Remove code
        that assumes ADDR_EXPR allocates stack space.
        * fold-const.c (build_fold_addr_expr_with_type): Look through
        WITH_SIZE_EXPR.

From-SVN: r86957
 2004-09-01 23:47:01 -07:00
Jakub Jelinek
266bff3a21 fold-const.c (operand_equal_p): Require equal sign also for FIX_{CEIL,TRUNC,FLOOR,ROUND}_EXPR. 
* fold-const.c (operand_equal_p): Require equal sign also for
	FIX_{CEIL,TRUNC,FLOOR,ROUND}_EXPR.

	* gcc.c-torture/execute/20040831-1.c: New test.

From-SVN: r86906
 2004-09-01 18:33:06 +02:00
Richard Henderson
88f1975682 fold-const.c (tree_expr_nonzero_p): Use get_base_address before assuming an ADDR_EXPR is non-null. 
* fold-const.c (tree_expr_nonzero_p): Use get_base_address before
        assuming an ADDR_EXPR is non-null.
cp/
        * class.c (fixed_type_or_null): Use get_base_address before
        assuming an ADDR_EXPR is non-null.

From-SVN: r86788
 2004-08-30 11:16:31 -07:00
Nathan Sidwell
ce552f75de tree.h (size_int_type): Remove. 
* tree.h (size_int_type): Remove.
	* fold-const.c: Do not #include gt-fold-const.h.
	(size_htab_hash, size_htab_eq): Remove.
	(size_int_kind): Use build_int_cst.
	(new_const, size_htab): Remove.
	(size_int_type): Remove.
	(round_up): Use build_int_cst.
	(round_down): Likewise. Remove spurious constant build.

	* ada/utils2.c (build_allocator): Use ssize_int.

	* cp/class.c (build_vtbl_initializer): Use ssize_int.
	* cp/decl.c (complete_array_type): Likewise.
	* cp/method.c (finish_thunk): Likewise.
	* cp/search.c (get_dynamic_base_type): Likewise.

From-SVN: r86667
 2004-08-27 16:45:20 +00:00
Nathan Sidwell
7d60be94d6 tree.h (build_int_cst): New, sign extended constant. 
* tree.h  (build_int_cst): New, sign extended constant.
	(build_int_cstu): New, zero extended constant.
	(build_int_cst_wide): Renamed from build_int_cst.
	* tree.c (build_int_cst, build_int_cstu): New.
	(build_int_cst_wide): Renamed from build_int_cst.
	(make_vector_type, build_common_tree_nodes,
	build_common_tree_nodes_2): Adjust build_int_cst calls.
	* builtins.c (expand_builtin_prefetch, expand_builtin_strstr,
	expand_builtin_strpbrk, expand_builtin_fputs,
	build_string_literal, expand_builtin_printf,
	expand_builtin_sprintf, fold_builtin_classify_type,
	fold_builtin_lround, fold_builtin_bitop, fold_builtin_isascii,
	fold_builtin_toascii, fold_builtin_isdigit,
	simplify_builtin_strstr, simplify_builtin_strpbrk,
	fold_builtin_fputs, simplify_builtin_sprintf): Likewise.
	* c-common.c (start_fname_decls, fix_string_type, shorten_compare,
	DEF_ATTR_INT): Likewise.
	* c-decl.c (complete_array_type, check_bitfield_type_and_width):
	Likewise.
	* c-lex.c (interpret_integer, lex_charconst): Likewise.
	* c-parse.in (primary) <TYPES_COMPATIBLE_P> Likewise.
	* c-pretty-print.c (pp_c_integer_constant): Likewise.
	* c-typeck.c (really_start_incremental_init, push_init_level,
	set_nonincremental_init_from_string): Likewise.
	* calls.c (load_register_parameters): Likewise.
	convert.c (convert_to_pointer): Likewise.
	coverage.c (coverage_counter_alloc, tree_coverage_counter_ref,
	build_fn_info_type, build_fn_info_value, build_ctr_info_value,
	build_gcov_info): Likewise.
	* except.c (init_eh, assign_filter_values): Likewise.
	* expmed.c (store_fixed_bit_field, extract_bit_field,
	extract_fixed_bit_field, extract_split_bit_field, expand_shift,
	expand_mult_const, expand_mult_highpart_adjust, extract_high_half,
	expand_sdiv_pow2, expand_divmod, make_tree): Likewise.
	* expr.c (convert_move, emit_group_load, emit_group_store,
	expand_assignment, store_constructor, store_field,
	expand_expr_real_1, reduce_to_bit_field_precision): Likewise.
	fold-const.c (force_fit_type, int_const_binop, fold_convert_const,
	invert_truthvalue, optimize_bit_field_compare,
	decode_field_reference, all_ones_mask_p, constant_boolean_node,
	fold_div_compare, fold, fold_read_from_constant_string,
	fold_negate_const, fold_abs_const, fold_not_const, round_up,
	round_down): Likewise.
	* function.c (assign_parm_setup_block): Likewise.
	* stmt.c (shift_return_value, expand_case, estimate_case_costs):
	Likewise.
	* stor-layout.c (layout_type, initialize_sizetypes,
	set_min_and_max_values_for_integral_type): Likewise.
	* tree-chrec.c (chrec_fold_multiply_poly_poly,
	reset_evolution_in_loop): Likewise.
	* tree-chrec.h (build_polynomial_chrec): Likewise.
	* tree-complex.c (build_replicated_const): Likewise.
	* tree-eh.c (honor_protect_cleanup_actions,
	lower_try_finally_onedest, lower_try_finally_copy,
	lower_try_finally_switch): Likewise.
	* tree-mudflap.c (mf_build_string, mx_register_decls,
	mudflap_register_call, mudflap_enqueue_constant): Likewise.
	* tree-nested.c (get_trampoline_type, get_nl_goto_field): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* tree-ssa-ccp.c (widen_bitfield, maybe_fold_offset_to_array_ref):
	Likewise.
	* tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Likewise.
	* tree-ssa-loop-niter.c (number_of_iterations_cond,
	loop_niter_by_eval, upper_bound_in_type, lower_bound_in_type):
	Likewise.
	* tree-ssa-loop-ivcanon.c (create_canonical_iv,
	canonicalize_loop_induction_variables): Likewise.
	* tree-vectorizer.c (vect_create_index_for_array_ref,
	vect_transform_loop_bound, vect_compute_data_ref_alignment):
	Likewise.

	* config/alpha/alpha.c (alpha_initialize_trampoline, alpha_va_start,
	alpha_gimplify_va_arg_1): Likewise.
	* config/arm/arm.c (arm_get_cookie_size): Likewise.
	* config/c4x/c4x.c (c4x_gimplify_va_arg_expr): Likewise.
	* config/i386/i386.c (ix86_va_start, ix86_gimplify_va_arg): Likewise.
	* config/ia64/ia64.c (ia64_gimplify_va_arg): Likewise.
	* config/mips/mips.c (mips_build_builtin_va_list, mips_va_start,
	mips_gimplify_va_arg_expr): Likewise.
	* config/pa/pa.c (hppa_gimplify_va_arg_expr): Likewise.
	* config/rs6000/rs6000.c (rs6000_va_start, rs6000_gimplify_va_arg,
	add_compiler_branch_island): Likewise.
	* config/s390/s390.c (s390_va_start): Likewise.
	* config/sh/sh.c (sh_va_start): Likewise.
	* config/stormy16/stormy16.c (xstormy16_expand_builtin_va_start):
	Likewise.
	* config/xtensa/xtensa.c (xtensa_va_start,
	xtensa_gimplify_va_arg_expr): Likewise.

	* objc/objc-act.c (build_objc_string_object,
	build_objc_symtab_template, init_def_list, init_objc_symtab,
	init_module_descriptor, generate_static_references,
	build_selector_translation_table, get_proto_encoding,
	build_typed_selector_reference, build_selector_reference,
	build_next_objc_exception_stuff,
	build_method_prototype_list_template, generate_descriptor_table,
	generate_protocols, build_protocol_initializer,
	build_ivar_list_template, build_method_list_template,
	build_ivar_list_initializer, generate_ivars_list,
	generate_dispatch_table, generate_protocol_list,
	build_category_initializer, build_shared_structure_initializer,
	generate_shared_structures, handle_impent,
	generate_objc_image_info): Likewise.

2004-04-25  Paolo Bonzini  <bonzini@gnu.org>

	* cfglayout.c (duplicate_insn_chain): Remove references to
	NOTE_INSN_LOOP_VTOP and NOTE_INSN_LOOP_CONT.
	* cfgloop.h (struct loop): Remove fields vtop, cont and cont_dominator.
	* cfgrtl.c (rtl_delete_block): Remove handling of NOTE_INSN_LOOP_CONT.
	* final.c (final_scan_insn): Remove references to NOTE_INSN_LOOP_VTOP
	and NOTE_INSN_LOOP_CONT.
	* insn-notes.def (NOTE_INSN_LOOP_VTOP, NOTE_INSN_LOOP_CONT): Remove.
	* jump.c (squeeze_notes): Remove references to NOTE_INSN_LOOP_VTOP
	and NOTE_INSN_LOOP_CONT.
	* loop.c (scan_loops, find_and_verify_loops, for_each_insn_in_loop,
	check_dbra_loop, loop_dump_aux): Remove references to removed notes
	and fields.
	* reorg.c (mostly_true_jump): Do not rely on NOTE_INSN_LOOP_VTOPs.
	* unroll.c (unroll_loop, copy_loop_body, loop_iterations): Remove
	references to removed notes and fields.
	(subtract_reg_term, ujump_to_loop_cont): Remove.

From-SVN: r86544
 2004-08-25 09:52:54 +00:00
Zdenek Dvorak
82b85a85c8 tree-ssa-loop-ivcanon.c: New file. 
* tree-ssa-loop-ivcanon.c: New file.
	* tree-ssa-loop-manip.c (create_iv): New function.
	* Makefile.in (tree-ssa-loop-ivcanon.o): Add.
	(tree-ssa-loop.o, tree-ssa-loop-manip.o): Add SCEV_H dependency.
	* cfgloop.c (mark_single_exit_loops): New function.
	(verify_loop_structure): Verify single-exit loops.
	* cfgloop.h (struct loop): Add single_exit field.
	(LOOPS_HAVE_MARKED_SINGLE_EXITS): New constant.
	(mark_single_exit_loops): Declare.
	(tree_num_loop_insns): Declare.
	* cfgloopmanip.c (update_single_exits_after_duplication): New function.
	(duplicate_loop_to_header_edge): Use it.
	* common.opt (fivcanon): New flag.
	* timevar.def (TV_TREE_LOOP_IVCANON, TV_COMPLETE_UNROLL): New timevars.
	* tree-cfg.c (tree_find_edge_insert_loc): Return newly created block.
	(bsi_commit_edge_inserts_1): Pass null to tree_find_edge_insert_loc.
	(bsi_insert_on_edge_immediate): New function.
	* tree-flow.h (bsi_insert_on_edge_immediate,
	canonicalize_induction_variables, tree_unroll_loops_completely,
	create_iv): Declare.
	* tree-optimize.c (init_tree_optimization_passes): Add
	pass_iv_canon and pass_complete_unroll.
	* tree-pass.h (pass_iv_canon, pass_complete_unroll): Declare.
	* tree-scalar-evolution.c (get_loop_exit_condition,
	get_exit_conditions_rec, number_of_iterations_in_loop,
	scev_initialize): Use single_exit information.
	* tree-ssa-loop-niter.c (number_of_iterations_cond): Record
	missing assumptions.
	(loop_niter_by_eval):  Return number of iterations as unsigned
	int.
	* tree-ssa-loop.c (tree_ssa_loop_init): Mark single exit loops.
	(tree_ssa_loop_ivcanon, gate_tree_ssa_loop_ivcanon, pass_iv_canon,
	tree_complete_unroll, gate_tree_complete_unroll, pass_complete_unroll):
	New passes.
	(tree_ssa_loop_done): Call free_numbers_of_iterations_estimates.
	* tree-ssanames.c (make_ssa_name): Allow creating ssa name before
	the defining statement is ready.
	* tree-vectorizer.c (vect_create_iv_simple): Removed.
	(vect_create_index_for_array_ref, vect_transform_loop_bound):
	Use create_iv.
	(vect_transform_loop_bound): Use single_exit information.
	(vect_analyze_loop_form): Cleanup bogus tests.
	(vectorize_loops): Do not call flow_loop_scan.
	* tree.h (may_negate_without_overflow_p): Declare.
	* fold-const.c (may_negate_without_overflow_p): Split out from ...
	(negate_expr_p): ... this function.
	(tree_expr_nonzero_p): Handle overflowed constants correctly.
	* doc/invoke.texi (-fivcanon): Document.
	* doc/passes.texi: Document canonical induction variable creation.

	* gcc.dg/tree-ssa/loop-1.c: New test.

From-SVN: r86516
 2004-08-24 20:48:23 +00:00
Nathan Sidwell
be88a6281e tree.h (enum size_type_kind): Remove USIZETYPE, UBITSIZETYPE. 
* tree.h (enum size_type_kind): Remove USIZETYPE, UBITSIZETYPE.
	(usize_type, ubitsizetype): Remove.
	* stor-layout.c (set_sizetype): Don't initialize usizetype,
	ubitsizetype.
	* fold-const.c (size_diffop): TYPE can never be ubitsizetype.

From-SVN: r86422
 2004-08-23 08:47:08 +00:00
Andrew Pinski
efd610a684 fold-const.c (rtl_expr_nonnegative_p): Delete. 
2004-08-22  Andrew Pinski  <pinskia@physics.uc.edu>

        * fold-const.c (rtl_expr_nonnegative_p): Delete.
        * tree.h (rtl_expr_nonnegative_p): Remove.

From-SVN: r86381
 2004-08-22 10:29:51 -07:00
Nathan Sidwell
0a936b12eb fold-const.c (round_up, round_down): Use build_int_cst. 
* fold-const.c (round_up, round_down): Use build_int_cst.
	Optimize common case.

From-SVN: r86329
 2004-08-20 16:09:00 +00:00
Nathan Sidwell
fabead0613 fold-const.c (int_const_binop): Don't generate non-overflowing size-types specially. 
* fold-const.c (int_const_binop): Don't generate non-overflowing
	size-types specially.
	(fold_convert_const): Likewise.

From-SVN: r86321
 2004-08-20 14:28:28 +00:00
Nathan Sidwell
89b0433e3a tree.h (TYPE_CACHED_VALUES_P): New. 
* tree.h (TYPE_CACHED_VALUES_P): New.
	(TYPE_CACHED_VALUES): New.
	(TYPE_ORIG_SIZE_TYPE): Adjust.
	* tree.def (INTEGER_CST): Update documentation.
	* tree.c: Inlcude params.h.
	(build_int_cst): Cache small values.
	(build_type_copy): Do not copy the value cache.
	* c-common.c (c_common_nodes_and_builtins): Add comment, remove
	unneeded zeroing.
	* c-typeck.c (build_c_cast): Add comment about OVERFLOW setting.
	* expmed.c (const_mult_add_overflow_p): Clear type copy's value
	cache.
	* fold-const.c (force_fit_type): Copy value when setting
	overflows.
	(int_const_binop): Likewise.
	* stor-layout.c: Include params.h
	(set_sizetype): Create values cache.
	(fixup_unsigned_type): Set UNSIGNED_P before caching any values.
	* params.def (PARAM_INTEGER_SHARE_LIMIT): New.
	* params.h (INTEGER_SHARE_LIMIT): New.
	* Makefile.in (tree.o, stor-layout.o): Depend on PARAMS_H.

	* cp/decl.c (finish_enum): Do not copy value node early, copy
	later.
	* cp/lex.c (cxx_init): Force null_node to be unique.

	* java/parse.h (JAVA_RADIX10_FLAG): Rename to ...
	(JAVA_NOT_RADIX10_FLAG): ... here.  Invert meaning.
	* java/lex.c (do_java_lex): Adjust.
	(error_if_numeric_overflow): Likewise.

From-SVN: r86247
 2004-08-19 10:36:07 +00:00
Paolo Bonzini
62fc1d7d18 re PR middle-end/17036 (ICE: (A >> N) & 1 ? (1 << N) : 0 where A of type unsigned int) 
gcc/ChangeLog:
2004-08-17  Paolo Bonzini  <bonzini@gnu.org>

	PR middle-end/17036
	* fold-const.c (fold): Check for integer operand when
	folding (A >> N) & 1 ? (1 << N) : 0.  Fix from Andrew
	Pinski  <pinskia@physics.uc.edu>.

gcc/testsuite/ChangeLog:
2004-08-17  Paolo Bonzini  <bonzini@gnu.org>

	* gcc.dg/pr17036-1.c: New test.

From-SVN: r86112
 2004-08-17 07:40:22 +00:00
Nathan Sidwell
4a90aeeb51 tree.h (build_int_cst): New. 
.:	* tree.h (build_int_cst): New.
	(build_int_2): Remove.
	* tree.c (build_int_2): Remove.
	(build_int_cst): New.
	(make_vector_type, build_common_tree_nodes,
	build_common_tree_nodes_2): Use build_int_cst.
	* builtins.c (expand_builtin_prefetch, expand_builtin_strstr,
	expand_builtin_strpbrk, expand_builtin_fputs,
	build_string_literal, expand_builtin_printf,
	expand_builtin_sprintf, fold_builtin_lround, fold_builtin_bitop,
	fold_builtin_bitop, fold_builtin_isascii, fold_builtin_toascii,
	fold_builtin_isdigit, simplify_builtin_strstr,
	simplify_builtin_strpbrk, fold_builtin_fputs,
	simplify_builtin_sprintf): Use build_int_cst.
	* c-common.c (start_fname_decls, fix_string_type,
	c_common_nodes_and_builtins, c_init_attributes,
	shorten_compare): Likewise.
	* c-decl.c (complete_array_type,
	check_bitfield_type_and_width): Likewise.
	* c-lex.c (interpret_integer, lex_charconst): Likewise.
	* c-parse.in (primary): <TYPES_COMPATIBLE_P> Likewise.
	* c-pretty-print.c (pp_c_integer_constant): Likewise.
	* c-typeck.c (really_start_incremental_init, push_init_level,
	set_nonincremental_init_from_string): Likewise.
	* calls.c (load_register_parameters): Likewise.
	* convert.c (convert_to_pointer): Likewise.
	* coverage.c (coverage_counter_alloc, tree_coverage_counter_ref,
	build_fn_info_type, build_ctr_info_value, build_gcov_info):
	Likewise.
	* except.c (init_eh, assign_filter_values, assign_filter_values):
	Likewise.
	* expmed.c (store_fixed_bit_field, extract_bit_field,
	extract_fixed_bit_field, extract_split_bit_field, expand_shift,
	expand_mult_const, expand_mult_highpart_adjust, extract_high_half,
	expand_sdiv_pow2, expand_divmod, make_tree): Likewise.
	* expr.c (convert_move, emit_group_load, emit_group_store,
	expand_assignment, store_constructor, store_field,
	expand_expr_real_1, reduce_to_bit_field_precision): Likewise.
	* fold-const.c (force_fit_type, int_const_binop, fold_convert_const,
	invert_truthvalue, optimize_bit_field_compare,
	decode_field_reference, all_ones_mask_p, constant_boolean_node,
	fold_div_compare, fold, fold_read_from_constant_string,
	fold_negate_const, fold_abs_const, fold_not_const): Likewise.
	* function.c (assign_parm_setup_block): Likewise.
	* stmt.c (shift_return_value, expand_end_case_type,
	estimate_case_costs): Likewise.
	* stor-layout.c (layout_type, initialize_sizetypes,
	set_min_and_max_values_for_integral_type): Likewise.
	* tree-chrec.c (chrec_fold_multiply_poly_poly,
	reset_evolution_in_loop): Likewise.
	* tree-chrec.h (build_polynomial_chrec): Likewise.
	* tree-complex.c (build_replicated_const): Likewise.
	* tree-eh.c (honor_protect_cleanup_actions,
	lower_try_finally_onedest, lower_try_finally_copy,
	lower_try_finally_switch): Likewise.
	* tree-mudflap.c (mf_build_string, mx_register_decls,
	mudflap_register_call, mudflap_enqueue_constant): Likewise.
	* tree-nested.c (get_trampoline_type, get_nl_goto_field): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* tree-ssa-ccp.c (widen_bitfield, maybe_fold_offset_to_array_ref):
	Likewise.
	* tree-ssa-dom.c (simplify_rhs_and_lookup_avail_expr): Likewise.
	* tree-ssa-loop-niter.c (number_of_iterations_cond,
	loop_niter_by_eval, upper_bound_in_type, lower_bound_in_type):
	Likewise.

	* config/alpha/alpha.c (alpha_initialize_trampoline,
	alpha_va_start, alpha_gimplify_va_arg_1): Use build_int_cst.
	* config/arm/arm.c (arm_get_cookie_size): Likewise.
	* config/c4x/c4x.c (c4x_gimplify_va_arg_expr): Likewise.
	* config/i386/i386.c (ix86_va_start, ix86_gimplify_va_arg): Likewise.
	* config/i860/i860.c (i860_va_start): Likewise.
	* config/ia64/ia64.c (ia64_gimplify_va_arg): Likewise.
	* config/mips/mips.c (mips_build_builtin_va_list, mips_va_start,
	mips_gimplify_va_arg_expr): Likewise.
	* config/pa/pa.c (hppa_gimplify_va_arg_expr): Likewise.
	* config/rs6000/rs6000.c (rs6000_va_start, rs6000_gimplify_va_arg,
	add_compiler_branch_island): Likewise.
	* config/s390/s390.c (s390_va_start): Likewise.
	* config/sh/sh.c (sh_va_start): Likewise.
	* config/stormy16/stormy16.c (xstormy16_expand_builtin_va_start):
	Likewise.
	* config/xtensa/xtensa.c (xtensa_va_start,
	xtensa_gimplify_va_arg_expr): Likewise.

	* objc/objc-act.c (build_objc_string_object,
	build_objc_symtab_template, init_def_list, init_objc_symtab,
	init_module_descriptor, generate_static_references,
	build_selector_translation_table, get_proto_encoding,
	build_typed_selector_reference, build_selector_reference,
	build_next_objc_exception_stuff,
	build_method_prototype_list_template, generate_descriptor_table,
	generate_protocols, build_protocol_initializer,
	build_ivar_list_template, build_method_list_template,
	build_ivar_list_initializer, generate_ivars_list,
	generate_dispatch_table, generate_protocol_list,
	build_category_initializer, build_shared_structure_initializer,
	generate_shared_structures, handle_impent,
	generate_objc_image_info): Use build_int_cst.
ada:
	* cuintp.c (UI_To_gnu): Use build_int_cst..
	* trans.c (Exception_Handler_to_gnu_sjlj, gnat_to_gnu): Likewise.
	* utils.c (init_gigi_decls): Likewise.
	* utils2.c (build_call_raise): Likewise.
cp:
	* call.c (convert_class_to_reference,
	build_user_type_conversion_1, convert_like_real,
	build_java_interface_fn_ref, build_special_member_call): Use
	build_int_cst.
	* class.c (build_vtbl_initializer): Likewise.
	* cp-gimplify.c (cp_gimplify_expr): Likewise.
	* cvt.c (cp_convert_to_pointer): Likewise.
	* decl.c (cxx_init_decl_processing, complete_array_type): Likewise.
	* decl2.c (start_static_initialization_or_destruction,
	generate_ctor_or_dtor_function): Likewise.
	* except.c (build_throw): Likewise.
	* lex.c (cxx_init): Likewise.
	* mangle.c (write_integer_cst): Likewise.
	* rtti.c (build_headof, get_tinfo_decl_dynamic,
	build_dynamic_cast_1, ptr_initializer, ptm_initializer,
	get_pseudo_ti_init): Likewise.
	* search.c (get_dynamic_cast_base_type): Likewise.
	* tree.c (build_shared_int_cst): Likewise.
fortran:
	* trans-array.c (gfc_trans_array_constructor_value): Use
	build_int_cst.
	* trans-const.c (gfc_build_string_const,
	gfc_init_constants, gfc_conv_mpz_to_tree,
	gfc_conv_constant_to_tree): Likewise.
	* trans-decl.c (gfc_get_symbol_decl): Likewise.
	* trans-intrinsic.c (gfc_conv_intrinsic_ibits,
	gfc_conv_intrinsic_len, prepare_arg_info): Likewise.
	* trans-io.c (add_case, set_error_locus, build_dt,
	transfer_expr): Likewise.
	* trans-stmt.c (gfc_trans_label_assign, gfc_trans_pause,
	gfc_trans_stop, gfc_trans_character_select): Likewise.
	* trans-types.c (gfc_init_types, gfc_get_dtype): Likewise.
	* trans.c (gfc_trans_runtime_check): Likewise.
java:
	* boehm.c (get_boehm_type_descriptor): Use build_int_cst.
	* class.c (build_utf8_ref, build_static_field_ref,
	make_field_value, make_method_value, get_dispatch_table,
	make_class_data, emit_symbol_table, emit_catch_table): Likewise.
	* constants.c (get_tag_node,  build_ref_from_constant_pool,
	build_constants_constructor): Likewise.
	* decl.c (java_init_decl_processing): Likewise.
	* expr.c (build_java_array_length_access, build_newarray,
	expand_java_multianewarray, expand_java_pushc, expand_iinc,
	build_java_binop, build_field_ref, expand_java_add_case,
	expand_java_call, build_known_method_ref, build_invokevirtual,
	build_invokeinterface, build_jni_stub): Likewise.
	* java-gimplify.c (java_gimplify_new_array_init): Likewise.
	* jcf-parse.c (get_constant): Likewise.
	* lex.c (do_java_lex): Likewise.
	* parse.y (patch_binop, patch_unaryop, patch_cast,
	build_null_of_type, patch_newarray): Likewise.
	* resource.c (compile_resource_data): Likewise.
	* typeck.c (build_prim_array_type): Likewise.

From-SVN: r86022
 2004-08-15 15:45:33 +00:00
Richard Henderson
159319544b stor-layout.c (round_up, round_down): Move ... 
* stor-layout.c (round_up, round_down): Move ...
        * fold-const.c (round_up, round_down): ... here.  Use
        multiple_of_p to avoid any arithmetic at all.

From-SVN: r85848
 2004-08-11 21:01:04 -07:00
Nathan Sidwell
ca7a3bd7d5 tree.h (force_fit_type): Return a tree, take three flags. 
* tree.h (force_fit_type): Return a tree, take three flags.
	* fold-const.c (force_fit_type): Set TREE_OVERFLOW and
	TREE_CONSTANT_OVERFLOW here.
	(int_const_binop, const_binop): Adjust.
	(size_int_type): Do sign extension here.
	(fold_convert_const, optimize_bit_field_compare,
	decode_field_reference, all_ones_mask_p, fold_div_compare, fold,
	fold_negate_const, fold_abs_const, fold_not_const): Adjust.
	* tree.c (size_in_bytes, int_fits_type_p): Adjust.

	* cp/cvt.c (cp_convert_to_pointer): Adjust force_fit_type call.

	* java/jcf-parse.c (get_constant): Adjust force_fit_type call.
	* java/lex.h (SET_LVAL_NODE_TYPE): Remove.
	* java/lex.c (java_perform_atof): Use SET_LVAL_NODE directly.
	(do_java_lex): Likewise. Adjust force_fit_type call.

From-SVN: r85599
 2004-08-05 09:03:42 +00:00
Roger Sayle
a0fac73d2b re PR middle-end/16790 (Integer down cast ignored in larger expression) 
PR middle-end/16790
	* fold-const.c (extract_muldiv_1) <NOP_EXPR>: Disallow local
	truncations, not just global truncations.

	* gcc.c-torture/execute/pr16790-1.c: New test case.

From-SVN: r85506
 2004-08-03 21:24:32 +00:00
Roger Sayle
3159762032 fold-const.c (fold): The transformation "X % -Y" -> "X % Y" is only valid for TRUNC_MOD_EXPR. 
* fold-const.c (fold) <TRUNC_MOD_EXPR>: The transformation "X % -Y"
	-> "X % Y" is only valid for TRUNC_MOD_EXPR.

From-SVN: r85443
 2004-08-02 17:11:42 +00:00
Eric Christopher
9f63daea37 c-common.c (c_common_unsafe_for_reeval): Delete. 
2004-07-28  Eric Christopher  <echristo@redhat.com>

	* c-common.c (c_common_unsafe_for_reeval): Delete.
	* c-lang.c (LANG_HOOKS_UNSAFE_FOR_REEVAL): Delete use.
	* c-pretty-print.c (pp_c_expression): Delete UNSAVE_EXPR case.
	* calls.c (fix_unsafe_tree): Delete.
	(expand_call): Delete code which used above.
	* dojump.c (do_jump): Delete UNSAVE_EXPR case.
	* expr.c (expand_expr_real_1): Ditto.
	* fold-const.c (non_lvalue): Ditto.
	* langhooks-def.h (LANG_HOOKS_UNSAFE_FOR_REEVAL): Delete.
	(lhd_unsafe_for_reeval): Ditto.
	* langhooks.c (lhd_unsafe_for_reeval): Ditto.
	* langhooks.h (unsafe_for_reeval): Ditto.
	(unsave_expr_now): Adjust comment.
	* tree-inline.c (copy_body_r): Delete UNSAVE_EXPR bits.
	(estimate_num_insns_1): Ditto.
	* tree-pretty-print.c (dump_generic_node): Ditto.
	* tree.c (expr_align): Ditto.
	(unsave_expr): Delete.
	(unsafe_for_reeval): Ditto.
	* tree.h (unsafe_for_reeval, unsave_expr): Ditto.
	* tree.def (UNSAVE_EXPR): Delete.
	* objc/objc-lang.c (LANG_HOOKS_UNSAFE_FOR_REEVAL): Delete.

2004-07-28  Eric Christopher  <echristo@redhat.com>

	* cp-lang.c (LANG_HOOKS_UNSAFE_FOR_REEVAL): Delete.

2004-07-28  Eric Christopher  <echristo@redhat.com>

	* lang.c (LANG_HOOKS_UNSAFE_FOR_REEVAL): Delete.
	(java_unsafe_for_reeval): Ditto.

From-SVN: r85276
 2004-07-28 23:44:56 +00:00
Roger Sayle
e9ea8bd58e fold-const.c (constant_boolean_node): Make extern. 
* fold-const.c (constant_boolean_node): Make extern.
	(make_range): Wrap long lines.
	(fold_cond_expr_with_comparison): Remove unnecessary call to
	pedantic_non_lvalue.  Add missing calls to fold_convert.
	(fold_truthop): Add missing calls to fold_convert.
	(fold): Likewise.
	* tree.h (constant_boolean_node): Add prototype here.
	* builtins.c (expand_builtin_strncmp): Add missing calls to
	fold_convert.
	* tree-ssa-dom.c (record_equivalences_from_incoming_edge):
	Call fold_convert and constant_boolean_node to correct types.
	* tree-ssa-forwprop.c (substitute_single_use_vars): Add
	missing call to fold_convert to correct types.

From-SVN: r85169
 2004-07-25 23:26:59 +00:00
Joseph Myers
9e629a806d re PR c/7284 (incorrectly simplifies leftshift followed by signed power-of-2 division) 
PR c/7284
	* fold-const.c (extract_muldiv_1): Do not treat signed left shift
	as multiplication.

testsuite:
	* gcc.c-torture/execute/pr7284-1.c: New test.

From-SVN: r85059
 2004-07-22 21:33:34 +01:00
Paolo Bonzini
3a021db299 c-common.c (vector_types_convertible_p): Use vector types' TYPE_SIZE and TREE_TYPE instead of their mode. 
2004-07-21  Paolo Bonzini  <bonzini@gnu.org>

	* c-common.c (vector_types_convertible_p): Use vector types'
	TYPE_SIZE and TREE_TYPE instead of their mode.
	* convert.c (convert_to_integer): Likewise.
	(convert_to_vector): Likewise.
	* fold-const.c (fold_convert): Likewise.
	* varasm.c (output_constant): Likewise.
	* expr.c (store_constructor): Split ARRAY_TYPE and VECTOR_TYPE.
	Allow a VECTOR_TYPE initializer to be made of several vectors.
	For ARRAY_TYPEs and VECTOR_TYPES, simplify a bit the handling
	of cleared and need_to_clear, and use fold_convert.
	* c-typeck.c (build_binary_op): Do not use RDIV_EXPR for
	integer vectors.

cp/ChangeLog:
2004-07-21  Paolo Bonzini  <bonzini@gnu.org>

	* c-typeck.c (build_binary_op): Do not use RDIV_EXPR for
	integer vectors.

From-SVN: r85002
 2004-07-21 08:57:07 +00:00
Richard Kenner
462fdcce48 fold-const.c (operand_equal_p): Temporarily support NULL args. 
* fold-const.c (operand_equal_p): Temporarily support NULL args.
	(operand_equal_p, case ARRAY_REF): Compare args 2 and 3.
	(operand_equal_p, case COMPONENT_REF): Likewise, for arg 2.

From-SVN: r84990
 2004-07-20 21:21:11 -04:00
Zack Weinberg
3e95a7cbf5 rtl.h (plus_constant): Delete. 
* rtl.h (plus_constant): Delete.
	(plus_constant_wide): Rename to plus_constant.
	(plus_constant_for_output_wide): Delete vestigial prototype.
	(GEN_INT): Remove unnecessary cast.
	* tree.h (build_int_2, size_int_type): Delete.
	(build_int_2_wide): Rename to build_int_2.
	(size_int_wide): Rename to size_int_kind.
	(size_int_type_wide): Rename to size_int_type.
	(size_int, ssize_int, bitsize_int, sbitsize_int): Use size_int_kind.
	Remove unnecessary cast.
	* tree.c (build_int_2_wide): Rename build_int_2; update comment.
	* explow.c (plus_constant_wide): Rename plus_constant; update comment.
	* fold-const.c (size_int_wide): Rename size_int_kind. Use size_int_type.
	(size_int_type_wide): Rename size_int_type.
	(int_const_binop): Use size_int_type.
	* c-lex.c (interpret_integer): Use build_int_2.
	* final.c (split_double): Remove unnecessary casts.
	* tree-ssa-ccp.c (maybe_fold_offset_to_array_ref): Use build_int_2.

From-SVN: r84976
 2004-07-20 23:02:36 +00:00
Roger Sayle
adb8e07e68 fold-const.c (tree_expr_nonzero_p): Add function prototype. 
* fold-const.c (tree_expr_nonzero_p): Add function prototype.
	(fold) <EQ_EXPR>: Move tree_expr_nonzero_p optimization from
	fold_relational_const to here, i.e. "(x | 5) == 0" -> false.
	(fold) (UNEQ_EXPR>: Add optimizations for unordered comparisons
	of the form "x op x" where op is UNLE, UNGE, UNEQ or LTGT.
	(fold_relational_const): Tidy up handling of floating point
	comparisons by calling real_compare.  Remove tree_expr_nonzero_p
	transformation; fold_relational_const assumes constant operands.

From-SVN: r84916
 2004-07-19 12:45:44 +00:00
Roger Sayle
df23e6bbfa fold-const.c (fold): Canonicalize X + -C as X - C for floating point additions... 
* fold-const.c (fold) <PLUS_EXPR>: Canonicalize X + -C as X - C for
	floating point additions, to keep real immediate constant positive.
	<MINUS_EXPR>:  For floating point subtractions, only transform X - -C
	into X + C, and leave positive real constants as X - C.

From-SVN: r84535
 2004-07-11 21:56:37 +00:00
Roger Sayle
9675412fd9 builtins.c (fold_builtin_fputs): Don't bother converting the return type to integer_type_node... 
* builtins.c (fold_builtin_fputs): Don't bother converting the
	return type to integer_type_node, as we've already checked that
	the result will be ignored.

	* tree-eh.c (tree_could_trap_p): Add support for -ftrapv such
	that signed addition, subtraction, multiplication, division,
	remainder, negation and absolute value may potentially trap.

	* fold-const.c (fold_ignored_result): New function to strip
	non-side-effecting tree nodes from an expression whose result
	is ignored.
	(fold_convert): Call fold_ignored_result when casting a value
	to VOID_TYPE.
	(omit_one_operand):  Call fold_ignored_result on the "omitted"
	operand when building a COMPOUND_EXPR.
	(pedantic_omit_one_operand): Likewise.
	* tree.h (fold_ignored_result): Prototype here.
	* tree-ssa-ccp.c (ccp_fold_builtin): Call fold_ignored_result
	when we're going to ignore the result.

From-SVN: r84525
 2004-07-11 18:14:48 +00:00
Joseph Myers
fae1b38dc8 re PR tree-optimization/16437 (New c-torture failures after bitfield patch) 
PR tree-optimization/16437
	* c-common.c (shorten_compare): Don't mark result of conversion to
	narrower signed type as overflowing.
	* fold-const.c (decode_field_reference): Determine whether
	signedness comes from outer type using precision rather than size.

testsuite:
	* gcc.c-torture/execute/bitfld-4.c: New test.

From-SVN: r84498
 2004-07-11 10:45:39 +01:00
Roger Sayle
a32e70c34d builtins.c (fold_builtin_strcpy): Merge functionality from simplify_builtin_strcpy. 
* builtins.c (fold_builtin_strcpy): Merge functionality from
	simplify_builtin_strcpy.  Add additional len argument.  No longer
	static.  Remove function prototype.
	(fold_builtin_strncpy): Likewise integrate functionality from
	simplify_builtin_strncpy.  Add additional slen argument.  No
	longer static.  Remove function prototype.
	(simplify_builtin_strcy, simplify_builtin_strncpy): Delete.
	(simplify_builtin_fputs): Rename to fold_builtin_fputs.  Change
	types of "ignore" and "unlocked" parameters to bool.
	(fold_builtin_1):  Add additional ignore argument.  Call renamed
	fold_builtin_fputs to simplify GCC "fputs" and "fputs_unlocked"
	builtins.  Update arguments to fold_builtin_strncpy and
	fold_builtin_strcpy.  Add function prototype.
	(fold_builtin): Add additional Boolean ignore argument to pass
	to fold_builtin_1.
	(simplify_builtin): Call fold_builtin_fputs, fold_builtin_strcpy
	and fold_builtin_strncpy instead of simplify_builtin_fputs,
	simplify_builtin_strcpy and simplify_builtin_strncpy respectively.

	* expr.h (simplify_builtin_fputs, simplify_builtin_strcpy,
	simplify_builtin_strncpy): Delete function prototypes.
	* tree.h (fold_builtin_fputs, fold_builtin_strcpy,
	fold_builtin_strncpy): Add function prototypes here.
	(fold_builtin): Update function prototype with new "bool ignore".

	* tree-ssa-ccp.c (ccp_fold): Update call to fold_builtin.
	(ccp_fold_builtin):  Update call to fold_builtin.  Call
	fold_builtin_fputs, fold_builtin_strcpy and fold_builtin_strncpy
	instead of simplify_builtin_fputs, simplify_builtin_strcpy and
	simplify_builtin_strncpy respectively.
	* fold-const.c (fold): Update call to fold_builtin.

From-SVN: r84302
 2004-07-08 17:40:22 +00:00
Richard Henderson
ac45df5dba except.c (expand_eh_region_start, [...]): Remove. 
* except.c (expand_eh_region_start, expand_eh_region_end,
	expand_eh_handler, expand_eh_region_end_cleanup,
	expand_start_all_catch, expand_start_catch, expand_end_catch,
	expand_end_all_catch, expand_eh_region_end_allowed,
	expand_eh_region_end_must_not_throw, expand_eh_region_end_throw,
	expand_eh_region_end_fixup): Remove.
	* stmt.c (struct nesting): Remove stack_level, innermost_stack_block,
	cleanups, outer_cleanups, label_chain, exception_region.
	(struct goto_fixup): Remove stack_level, cleanup_list_list.
	(struct label_chain): Remove.
	(struct stmt_status): Remove x_stack_block_stack.
	(stack_block_stack, expand_goto_internal, expand_fixup, expand_fixups,
	fixup_gotos, save_stack_pointer, expand_decl_cleanup,
	expand_decl_cleanup_eh, expand_cleanups, start_cleanup_deferral,
	end_cleanup_deferral, last_cleanup_this_contour,
	containing_blocks_have_cleanups_or_stack_level,
	any_pending_cleanups): Remove.
	(expand_null_return_1): Take no arguments.
	(expand_label, expand_naked_return, expand_return,
	expand_start_bindings_and_block, expand_end_bindings, expand_decl,
	expand_anon_union_decl, expand_start_case, pushcase, pushcase_range,
	expand_end_case_type): Don't use any of them.
	* calls.c (expand_call): Likewise.
	* dojump.c (do_jump): Likewise.
	* function.c (expand_function_end): Likewise.
	* expr.c (store_expr, expand_expr_real_1): Likewise.
	(safe_from_p): Don't handle WITH_CLEANUP_EXPR, CLEANUP_POINT_EXPR.
	(expand_expr_real_1): Don't handle WITH_CLEANUP_EXPR,
	CLEANUP_POINT_EXPR, TARGET_EXPR, TRY_CATCH_EXPR, CATCH_EXPR,
	EH_FILTER_EXPR, TRY_FINALLY_EXPR, GOTO_SUBROUTINE_EXPR.
	* fold-const.c (fold_checksum_tree): Use first_rtl_op.
	* gengtype.c (adjust_field_tree_exp): Remove rtl op handling.
	* gimplify.c (gimplify_cleanup_point_expr): Renumber operands
	for WITH_CLEANUP_EXPR.
	(gimple_push_cleanup): Likewise.
	* integrate.c (copy_decl_for_inlining): Don't DECL_TOO_LATE.
	* print-tree.c (print_node): Likewise.
	* tree-pretty-print.c (dump_generic_node): Remove GOTO_SUBROUTINE_EXPR.
	* tree.c (first_rtl_op): Always just TREE_CODE_LENGTH.
	(has_cleanups): Remove GOTO_SUBROUTINE_EXPR.
	* tree.def (WITH_CLEANUP_EXPR): Remove op1 and op2.
	(GOTO_SUBROUTINE_EXPR): Remove.
	* tree.h (WITH_CLEANUP_EXPR_RTL): Remove.
	(DECL_TOO_LATE): Remove.
	* except.h, tree.h: Update decls.
ada/
	* trans.c (gnat_to_gnu <N_Handled_Sequence_Of_Statements>): Update
	commentary.
cp/
	* cp-tree.h (expand_eh_spec_block): Remove.
java/
	* expr.c (case_identity, get_primitive_array_vtable,
	java_expand_expr, emit_init_test_initialization): Remove.
	* java-tree.h (java_expand_expr): Remove.
	* lang.c (LANG_HOOKS_EXPAND_EXPR): Remove.

From-SVN: r84275
 2004-07-08 00:46:07 -07:00
Andrew Pinski
5f7b215606 re PR tree-optimization/15777 (Fold does not always fold sub trees) 
2004-07-07  Andrew Pinski  <apinski@apple.com>

        PR tree-optimization/15777
        * fold-const.c (fold_single_bit_test): Fold the x^1 expression.

From-SVN: r84231
 2004-07-07 14:28:01 -07:00
Andrew Pinski
3a18db48e9 expr.c (expand_expr_real_1): Fix formating. 
* expr.c (expand_expr_real_1): Fix formating.
	BUFFER_REF and IN_EXPR are dead.
	* fold-const.c (non_lvalue): BUFFER_REF is dead.
	* tree-inline.c (estimate_num_insns_1): Likewise.
	* tree-pretty-print.c (dump_generic_node): BUFFER_REF,
	IN_EXPR, SET_LE_EXPR, and CARD_EXPR are dead.
	* tree.def (BUFFER_REF, IN_EXPR, SET_LE_EXPR, CARD_EXPR): Kill.
cp/ChangeLog:
	* class.c (instantiate_type): BUFFER_REF is dead.
	* lex.c (init_operators): IN_EXPR is dead.

From-SVN: r84230
 2004-07-07 14:26:31 -07:00
Roger Sayle
ab0e8f666d fold-const.c (fold): Optimize unsigned modulus by a power of two into a bit-wise AND, i.e. 
* fold-const.c (fold) <TRUNC_MOD_EXPR>: Optimize unsigned modulus
	by a power of two into a bit-wise AND, i.e. "X % C" as "X & (C-1)".
	Normalize "X % C" as "X % -C" for signed modulus and negative C.
	Optimize "X % -Y" as "X % Y" for signed modulus.
	<EQ_EXPR>: Recursively call "fold" when transforming "(X % Y) == 0"
	into "((unsigned) X % Y) == 0".

From-SVN: r84122
 2004-07-05 16:44:17 +00:00