2006-11-12 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/29587
* tree-ssa-structalias.c (process_constraint): Don't
mark address taken due only to escaped vars constraint.
From-SVN: r118742
2006-11-12 Michael Matz <matz@suse.de>
Roger Sayle <roger@eyesopen.com>
PR rtl-optimization/29797
* ifcvt.c (noce_try_bitop): Correct calculation of bitnum on
BITS_BIG_ENDIAN targets.
* gcc.c-torture/execute/pr29797-1.c: New test case.
From-SVN: r118740
* builtins.c (fold_builtin_cosh): New.
(fold_builtin_1): Use it.
* fold-const.c (negate_mathfn_p): Add llround, lround, round,
trunc to the list of "odd" functions. Also add llrint, lrint,
rint and nearbyint when flag_rounding_math is false.
testsuite:
* gcc.dg/torture/builtin-symmetric-1.c: Add more cases.
From-SVN: r118733
* tree-ssa-loop-prefetch.c (schedule_prefetches): Cleanup and improve
comments.
(issue_prefetch_ref): Move assignment to write_p out of loop.
(determine_unroll_factor): Do not take PARAM_MAX_UNROLL_TIMES and
SIMULTANEOUS_PREFETCHES into account.
(loop_prefetch_arrays): Do not pass ahead to determine_unroll_factor.
* lambda-code.c (lcm): Renamed to ...
(least_common_multiple): ... and exported.
* tree-flow.h (least_common_multiple): Declare.
From-SVN: r118730
* Makefile.in (tree-data-ref.o): Add langhooks.h dependency.
* tree-ssa-loop-niter.c (derive_constant_upper_bound): Follow
ud-chains. Handle AND_EXPR.
(record_estimate): Record whether the estimate is realistic
and whether it is derived from a loop exit.
(record_nonwrapping_iv, idx_infer_loop_bounds, infer_loop_bounds_from_ref,
infer_loop_bounds_from_array, infer_loop_bounds_from_signedness): New
functions.
(compute_estimated_nb_iterations): Take only realistic bounds into
account. Set estimate_state. Use double_ints.
(infer_loop_bounds_from_undefined): Call infer_loop_bounds_from_array
and infer_loop_bounds_from_signedness. Do not consider basic blocks
that do not have to be always executed.
(estimate_numbers_of_iterations_loop): Set estimate_state, and use it
to determine whether to call infer_loop_bounds_from_undefined
and compute_estimated_nb_iterations.
(n_of_executions_at_most): Use double_ints.
(free_numbers_of_iterations_estimates_loop): Set estimate_state.
(substitute_in_loop_info): Do not replace in estimated_nb_iterations.
* double-int.c (double_int_to_tree): Improve comment.
(double_int_fits_to_tree_p): New function.
* double-int.h (double_int_fits_to_tree_p): Declare.
* tree-data-ref.c: Include langhooks.h.
(estimate_niter_from_size_of_data, estimate_iters_using_array): Removed.
(analyze_array_indexes): Do not call estimate_niter_from_size_of_data.
(analyze_array): Do not pass estimate_only argument to
analyze_array_indexes.
(get_number_of_iters_for_loop): Build tree from the stored double_int
value.
(get_references_in_stmt, find_data_references_in_stmt): New functions.
(find_data_references_in_loop): Use find_data_references_in_stmt.
* tree-data-ref.h (struct data_ref_loc_d): New.
(get_references_in_stmt): Declare.
(estimate_iters_using_array): Declaration removed.
* cfgloop.h (struct nb_iter_bound): Change type of bound to
double_int. Improve comments. Add is_exit and realistic
fields.
(struct loop): Changed type of estimated_nb_iterations to double_int.
Added estimate_state field.
(record_estimate): Declaration removed.
From-SVN: r118729
PR tree-optimization/13827
* fold-const.c (fold_binary) <EQ_EXPR, NE_EXPR>: Fold (X&C) op (Y&C)
as ((X^Y)&C) op 0.
* gcc.dg/fold-eqand-1.c: New test case.
From-SVN: r118727
* cfgloopmanip.c (update_single_exit_for_duplicated_loop,
update_single_exit_for_duplicated_loops): New functions.
(duplicate_loop_to_header_edge): Use
update_single_exit_for_duplicated_loops.
* tree-ssa-loop-manip.c (tree_unroll_loop): Call verification
functions only with ENABLE_CHECKING.
From-SVN: r118726
* fold-const.c (int_binop_types_match_p): New function.
(size_binop): Relax constraint that both arguments must both have
exactly the same sizetype type. Instead use int_binop_types_match_p.
(size_diffop): Likewise.
(make_range): Use build_int_cst instead of fold_convert.
(fold_cond_expr_with_comparison): Use build_int_cst to construct
integer constants of the correct type.
(fold_div_compare): Likewise.
(fold_single_bit_test): Likewise.
(fold_binary): Likewise.
* stor-layout.c (layout_type) <VECTOR_TYPE>: Ensure that TYPE_SIZE
has type bitsizetype and TYPE_SIZE_UNIT has type sizetype.
From-SVN: r118718
2006-11-11 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR rtl-opt/28812
* alias.c (fixed_scalar_and_varying_struct_p): Don't return a
non null value if the struct memory access is in the 0th
aliasing set.
2006-11-11 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR rtl-opt/28812
* gcc.c-torture/execute/mayalias-3.c: New test.
From-SVN: r118716
Revert
2006-11-11 Jie Zhang <jie.zhang@analog.com>
* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Define __bfin__
and __BFIN__.
* config/bfin/bfin.h (TARGET_CPU_CPP_BUILTINS): Use builtin_define_std
instead of builtin_define for bfin and BFIN.
From-SVN: r118713
* extended.texi (__builtin_expect): We no longer require second argument
to be constant.
* gengtype.c (adjust_field_rtx_def): Drop NOTE_INSN_EXPECTED_VALUE.
* builtins.c (expand_builtin_expect): Simplify.
(expand_builtin_expect_jump): Kill.
* final.c (final_scan_insn): Do not skip the removed notes.
* insn-notes.def (LOOP_BEG, LOOP_END, REPEATED_LINE_NUMBER,
EXPECTED_VALUE): Remove.
* dojump.c (do_jump): Do not care about __builtin_expect.
* predict.c (expected_value_to_br_prob): Kill.
* function.c (expand_function_end): Do not expand
NOTE_INSN_REPEATED_LINE_NUMBER.
* print-rtl.c (print_rtx): Do not pretty print the removed notes.
* expect.c (sjlj_emit_function_enter): Emit directly branch probability.
* cfgexpand.c (add_reg_br_prob_note): Export.
* cfgcleanup.c (rest_of_handle_jump2): Do not call
expected_value_to_br_prob.
* cfglayout.c (duplicate_insn_chain): Do not deal with removed notes.
* rtl.h (add_reg_br_prob_note): Declare.
From-SVN: r118697
* extended.texi (__builtin_expect): We no longer require second argument
to be constant.
* gengtype.c (adjust_field_rtx_def): Drop NOTE_INSN_EXPECTED_VALUE.
* builtins.c (expand_builtin_expect): Simplify.
(expand_builtin_expect_jump): Kill.
* final.c (final_scan_insn): Do not skip the removed notes.
* insn-notes.def (LOOP_BEG, LOOP_END, REPEATED_LINE_NUMBER,
EXPECTED_VALUE): Remove.
* dojump.c (do_jump): Do not care about __builtin_expect.
* predict.c (expected_value_to_br_prob): Kill.
* function.c (expand_function_end): Do not expand
NOTE_INSN_REPEATED_LINE_NUMBER.
* print-rtl.c (print_rtx): Do not pretty print the removed notes.
* expect.c (sjlj_emit_function_enter): Emit directly branch probability.
* cfgexpand.c (add_reg_br_prob_note): Export.
* cfgcleanup.c (rest_of_handle_jump2): Do not call
expected_value_to_br_prob.
* cfglayout.c (duplicate_insn_chain): Do not deal with removed notes.
* rtl.h (add_reg_br_prob_note): Declare.
From-SVN: r118696
* tree-ssa-loop.c (pass_loop_prefetch): Change name to aprefetch.
* tree-ssa-loop-prefetch.c (dump_mem_ref): Fix target file.
(tree_ssa_prefetch_arrays): Do not dump for removed loops.
From-SVN: r118691
* tree.c (build_int_cst_wide): Add an assertion (gcc_unreachable)
when attempting to build INTEGER_CSTs of non-integral types.
* expmed.c (make_tree): Use the correct type, i.e. the inner
type, when constructing the individual elements of a CONST_VECTOR.
From-SVN: r118678
