2006-03-29 Andreas Tobler <a.tobler@schweiz.ch>
* acinclude.m4: Restore the situation that we don't build modules on
darwin.
* configure: Regenerated.
From-SVN: r112503
PR tree-optimization/26859
* tree-ssa-loop-niter.c (infer_loop_bounds_from_undefined): Avoid
division by zero.
(convert_step): Remove TREE_OVERFLOW and TREE_CONSTANT_OVERFLOW flags
for the step after fold_convert.
From-SVN: r112502
2006-03-29 Paul Brook <paul@codesourcery.com>
* reload1.c (choose_reload_regs): Check for all RTX_AUTOINC operators.
(inc_for_reload): Handle PRE_MODIFY and POST_MODIFY addresses.
From-SVN: r112500
PR tree-optimization/25985
* tree-ssa-loop-niter.c (number_of_iterations_le,
number_of_iterations_ne): Make comments more precise.
(number_of_iterations_cond): Add only_exit argument. Use the
fact that signed variables do not overflow only when only_exit
is true.
(loop_only_exit_p): New.
(number_of_iterations_exit): Pass result of loop_only_exit_p to
number_of_iterations_cond.
From-SVN: r112484
* fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & Y) ^ Y as
the equivalent ~X & Y, and the symmetry related transformations.
(fold_binary) <BIT_AND_EXPR>: Similarly, fold (X ^ Y) & Y as
~X & Y, and symmetry related transforms.
* gcc.dg/fold-andxor-1.c: New test case.
* gcc.dg/fold-xorand-1.c: Likewise.
From-SVN: r112459
* fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
~(T1)X, when T1 and T2 are integer types of the same precision
and (T2)X isn't an extension.
* gcc.dg/fold-convnotconv-1.c: New test case.
From-SVN: r112455
PR tree-optimization/26796
* tree-ssa-dom.c (propagate_rhs_into_lhs): Queue blocks which
need EH edge cleanups rather than purging them immediately.
(eliminate_degenerate_phis): Handle queued EH cleanups.
From-SVN: r112453
2006-03-28 Paolo Carlini <pcarlini@suse.de>
* include/ext/vstring.h (operator[]): Allow s[s.size()] in
debug mode, but not pedantic mode.
From-SVN: r112447
2006-03-28 Paul Thomas <pault@gcc.gnu.org>
PR fortran/26779
*resolve.c (resolve_fl_procedure): Do not check the access of
derived types for internal procedures.
2006-03-28 Paul Thomas <pault@gcc.gnu.org>
PR fortran/26779
* gfortran.dg/private_type_5.f90: New test.
From-SVN: r112442
2006-03-27 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
* rtl.def (Copyright): Update date.
(DEPS_LIST): Change type of the second operand to 'int'.
* target.h (Copyright): Update date.
(struct gcc_target.speculate_insn): Change type of the second parameter
to 'int'.
* lists.c (Copyright): Update date.
(alloc_DEPS_LIST): Change signature. Update reference to the second
operand of the DEPS_LIST.
(copy_DEPS_LIST_list): Update reference to the second operand of the
DEPS_LIST.
* rtl.h (Copyright): Update date.
(alloc_DEPS_LIST): Update signature.
* sched-int.h (Copyright): Update date.
(ds_t): Change typedef to 'int'.
(DEP_STATUS, BITS_PER_DEP_STATUS): Update.
From-SVN: r112428
2006-03-27 Maxim Kuvyrkov <mkuvyrkov@ispras.ru>
* haifa-sched.c (Copyright): Update date.
(try_ready): Change condition to restore non-speculative pattern
of the instruction.
(process_insn_depend_be_in_spec): Code to keep probability of the
speculative dependence non-decreasing.
From-SVN: r112427
2006-03-27 Andreas Krebbel <krebbel1@de.ibm.com>
* config/s390/s390-protos.h (s390_hard_regno_mode_ok,
s390_class_max_nregs): New function prototypes.
* config/s390/s390.c (REGNO_PAIR_OK): New macro.
(s390_hard_regno_mode_ok, s390_class_max_nregs): New functions.
* config/s390/s390.h (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK,
CLASS_MAX_NREGS): Macro bodies replaced by function calls.
From-SVN: r112418
* io.c (check_io_constraints): Don't look at
dt->advance->value.charater.string, unless it is a CHARACTER
constant.
* gfortran.dg/advance_2.f90: New test.
* gfortran.dg/advance_3.f90: New test.
From-SVN: r112417
* dwarf2out.c (add_location_or_const_value_attribute): Call
tree_add_const_value_attribute if nothing else works.
(reference_to_unused): New.
(rtl_for_decl_init): Use reference_to_unused to decide whether
to output an initializer.
From-SVN: r112408
* tree-data-ref.c: Rename DDR_SIZE_VECT to DDR_NB_LOOPS.
(subscript_dependence_tester_1): Declared.
(print_dir_vectors, print_dist_vectors): New.
(debug_data_dependence_relation): New.
(dump_data_dependence_relation): Print more details.
(initialize_data_dependence_relation): Initialize DDR_LOOP_NEST.
(analyze_subscript_affine_affine): Don't ICE when gcd_alpha_beta is 0.
(save_dist_v, save_dir_v, add_outer_distances,
build_classic_dist_vector_1): New.
(build_classic_dist_vector): Rewrite to work on DDR_LOOP_NEST.
Don't test for lambda_vector_lexico_pos.
(same_access_functions, add_multivariate_self_dist,
add_other_self_distances, dir_from_dist): New.
(build_classic_dir_vector): Replace implementation almost identical to
build_classic_dist_vector with a walk of DDR_DIST_VECTS with a call to
dir_from_dist.
(subscript_dependence_tester_1): New.
(subscript_dependence_tester): Handle the lexicographically negative
distance vectors by recomputing the dependence relation.
(compute_affine_dependence): Remove parameter loop_nest_depth.
(compute_self_dependence): Don't call compute_subscript_distance.
(compute_all_dependences): Remove parameters nb_loops, loop_nest_depth.
Add a parameter for the loop_nest.
(find_loop_nest_1, find_loop_nest): New.
(compute_data_dependences_for_loop): Compute the loop nest, and give
up if the nest is not well formed.
* tree-data-ref.h (loop_p): New.
(struct data_dependence_relation): Replace size_vect field with
loop_nest, a vec of loops.
(DDR_SIZE_VECT): Renamed DDR_NB_LOOPS.
(DDR_LOOP_NEST): New.
(print_dir_vectors, print_dist_vectors,
debug_data_dependence_relation): Declared.
(index_in_loop_nest): New.
* tree-vect-analyze.c (vect_analyze_data_ref_dependence): Use
DDR_LOOP_NEST and index_in_loop_nest to determine the dependence
distance.
From-SVN: r112399
2006-03-25 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/26661
* io/io.h: Add read_sf so it can be used by read_x.
* io/transfer.c (read_sf): Pass no_error flag to read_sf. Use it to
break out rather than error on EOF or EOR conditions.
(read_block): Update call to read_sf.
(read_block_direct): Ditto.
* io/read.c (read_x): Use the modified read_sf instead of read_block.
From-SVN: r112390
Andreas Tobler
Sebastian Pop
Paul Brook
Tom Tromey
Andreas Krebbel
Zdenek Dvorak
GCC Administrator
Kaz Kojima
Steven G. Kargl
Roger Sayle
Jeff Law
Tom Tromey
Denis Chertykov
Maxim Kuvyrkov
Anthony Balkissoon
Daniel Berlin
Paolo Carlini
Paul Thomas
David Edelsohn
Bernd Schmidt
J"orn Rennecke
Andrew Stubbs
Jakub Jelinek
Jerry DeLisle
Geoffrey Keating
Alan Modra
Adam Nemet