PR tree-optimization/18048
* fold-const.c (try_move_mult_to_index): New function.
(fold): Use try_move_mult_to_index.
* tree-ssa-loop-ivopts.c (try_add_cand_for): Prefer common candidates.
* tree-ssa-loop-niter.c (number_of_iterations_cond): Produce
an all-ones unsigned constant without extra bits.
* tree.c (build_low_bits_mask): New function.
* tree.h (build_low_bits_mask): Declare.
From-SVN: r89708
2004-10-27 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/17133
* tree-cfg.c (rewrite_to_new_ssa_names_bb): Also rewrite must
def kill operand.
* tree-flow-inline.h: V_MUST_DEF_OP became V_MUST_DEF_RESULT.
(get_v_must_def_result_ptr): Modify for new structure of
v_must_defs array.
(get_v_must_def_kill_ptr): New.
(op_iter_next_use): Add support for the kill that occurs in V_MUST_DEFs.
(op_iter_next_tree): Ditto. Also V_MAY_DEF_OP became V_MAY_DEF_RESULT.
(op_iter_next_def): V_MAY_DEF_OP became V_MAY_DEF_RESULT.
(op_iter_init): Initialize new mustu members.
(op_iter_next_mustdef): New function.
(op_iter_init_mustdef): Ditto.
* tree-flow.h (rewrite_def_def_chains): New function.
* tree-into-ssa.c (mark_def_sites): Handle mustdefkill operands.
(ssa_mark_def_sites): Ditto.
(rewrite_stmt): Ditto.
(ssa_rewrite_stmt): Ditto.
(rewrite_blocks): Factor out from rewrite_into_ssa.
(mark_def_block_sites): Ditto.
(rewrite_def_def_chains): New function, just rewrites def-def
chains without phi node insertion.
* tree-pass.h (TODO_fix_def_def_chains): New todo flag.
* tree-optimize.c (execute_todo): Handle TODO_fix_def_def_chains.
* tree-pretty-print.c (dump_vops): Print out MUST_DEF's so that
they include the rhs now.
* tree-ssa-ccp.c (visit_assignment): V_MUST_DEF_OP became
V_MUST_DEF_RESULT.
* tree-ssa-dce.c (mark_operand_necessary): Add phionly argument.
Update callers.
(mark_really_necessary_kill_operand_phis): New function.
(perform_tree_ssa_dce): Call it.
(pass_dce): Add TODO_fix_def_def_chains.
(pass_cd_dce): Ditto.
* tree-ssa-loop-im.c (determine_max_movement): Look at kills as
well.
(rewrite_mem_refs): Ditto.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Look at kills
as well.
* tree-ssa-operands.c (allocate_v_may_def_optype):
v_may_def_operand_type_t became v_def_use_operand_type_t.
(allocate_v_must_def_optype) Ditto.
(finalize_ssa_v_must_defs): Update for new operand type, as well
as setting the use portion as well.
(copy_virtual_operands): Copy the kill operand as well.
(create_ssa_artficial_load_stmt): V_MUST_DEF_OP became
V_MUST_DEF_RESULT.
* tree-ssa-operands.h (v_may_def_operand_type): Renamed to
v_def_use_operand_type.
(v_must_def_optype_d): Use v_def_use_operand_type.
(V_MUST_DEF_OP_*): Renamed to V_MUST_DEF_RESULT_*
(V_MUST_DEF_KILL_*): New macros.
(struct ssa_operand_iterator_d): Add num_v_mustu and v_mustu_i
members.
Rename existing must_i and num_v_must members to mustd_i and
num_v_mustd.
(SSA_OP_VMUSTDEFKILL): New flag.
(SSA_OP_VIRTUAL_KILLS): New flag.
(SSA_OP_ALL_OPERANDS): Add in SSA_OP_ALL_KILLS.
(SSA_OP_ALL_KILLS): New flag.
(FOR_EACH_SSA_MUSTDEF_OPERAND): New macro.
* tree-ssa.c (verify_ssa): Verify virtual kills as well.
* tree-vectorizer.c (vect_create_data_ref_ptr): V_MUST_DEF_OP
became V_MUST_DEF_RESULT.
(rename_variables_in_bb): Rename kill pointer as well.
* tree-dfa.c (compute_immediate_uses_for_stmt): Add kills into the
immediate uses.
From-SVN: r89695
PR 18075
* directives.c (do_pragma): Do not defer pragmas which are unknown.
(cpp_handle_deferred_pragma): Add cast to silence warning.
From-SVN: r89693
* tree-phinodes.c (remove_phi_arg_num): Don't remove PHIs
without any PHI arguments left. Make sure the argument that
we're supposed to remove exists at all.
From-SVN: r89689
* src/arm/ffi.c (ffi_prep_cif_machdep): Handle functions that return
long long values. Round stack allocation to a multiple of 8 bytes
for ATPCS compatibility.
* src/arm/sysv.S (ffi_call_SYSV): Rework to avoid use of APCS register
names. Handle returning long long types. Add Thumb and interworking
support. Improve soft-float code.
From-SVN: r89681
2004-10-26 Cyrille Comar <comar@act-europe.fr>
Vasiliy Fofanov <fofanov@act-europe.fr>
Vincent Celier <celier@gnat.com>
* gnat_ugn.texi: Generalize "finding memory problems" section into a
"memory management issues" section and document some of the useful
memory pools provided as part of the GNAT library.
Remove "virtual" from declaration of A::method2 in
the simple example of Ada/C++ mixed system.
Library Projects may be virtually extended: their virtual extensions
are not Library Projects.
Added section on extending project hierarchies.
From-SVN: r89678
2004-10-26 Eric Botcazou <ebotcazou@act-europe.fr>
* trans.c (call_to_gnu): For an (in-)out parameter passed by reference
whose type is a constructed subtype of an aliased object with an
unconstrained nominal subtype, convert the actual to the constructed
subtype before taking its address.
From-SVN: r89676
2004-10-26 Pascal Obry <obry@gnat.com>
* tracebak.c (IS_BAD_PTR): Use IsBadCodePtr on Win32 to check for ptr
validity (process must have read access). Set to 0 in all other cases.
(STOP_FRAME): Now check for ptr validity to avoid a segmentation
violation on Win32.
(VALID_STACK_FRAME): Check for ptr validity on Win32 to avoid a
segmentation violation.
From-SVN: r89675
2004-10-26 Thomas Quinot <quinot@act-europe.fr>
Ed Schonberg <schonberg@gnat.com>
* sem_util.adb (Is_Aliased_View): Defend against the case where this
subprogram is called with a parameter that is not an object name. This
situation arises for some cases of illegal code, which is diagnosed
later, and in this case it is wrong to call Is_Aliased, as that might
cause a compiler crash.
(Explain_Limited_Type): Refine previous fix to include
inherited components of derived types, to provide complete information.
* exp_ch9.adb (Set_Privals): Set the Ekind of the actual object that
is the prival for a protected object.
It is necessary to mark this entity as a variable, in addition to
flagging it as Aliased, because Sem_Util.Is_Aliased_View has been
modified to avoid checking the Aliased flag on entities that are not
objects. (Checking that flag for non-objects is erroneous and could
lead to a compiler crash).
From-SVN: r89674
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_elab.adb (Check_Elab_Call): Do not check a call that does not
appear in the code for the main unit. Dependencies among units in the
context of the main unit are established when those other units are
compiled. Otherwise spurious elaboration constraints can generate
incorrect elaboration circularities.
From-SVN: r89673
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_ch6.adb (Analyze_Subprogram_Body): If body is a subunit for a
different kind of stub (possibly wrong name for file), do not check
for conformance.
(Uses_Secondary_Stack): New subsidiary to Build_Body_To_Inline. If body
includes call to some function that returns an unconstrained type, do
not inline.
From-SVN: r89671
2004-10-26 Ed Schonberg <schonberg@gnat.com>
* sem_ch3.adb (Complete_Private_Subtype): If the full view is a task
or protected type with discriminants, do not constrain the
corresponding record type if the subtype declaration has no
discriminant constraints. This can be the case in source code, or in
the subtype declaration created to rename an actual type within an
instantiation.
From-SVN: r89670
2004-10-26 Cyrille Comar <comar@act-europe.fr>
* sem_ch13.adb (Analyze_Attribute_Definition_Clause, case
'Storage_Pool): enhance, document & limit detection of non-sharable
internal pools.
* impunit.adb: Make System.Pool_Global and System.Pool_Local visible.
* s-pooglo.ads: Add more documentation now that this pool is properly
documented.
From-SVN: r89669
Richard Henderson
Andrew Pinski
Kazu Hirata
Paolo Carlini
Joseph Myers
Geoffrey Keating
GCC Administrator
David Mosberger
Ben Elliston
Nicolas Pitre
Zdenek Dvorak
David Edelsohn
Aaron W. LaFramboise
Geoffrey Keating
Daniel Berlin
Richard Sandiford
Zack Weinberg
Zack Weinberg
Steven Bosscher
Paul Brook
Richard Earnshaw
Paolo Bonzini
Arnaud Charlet
Cyrille Comar
Vincent Celier
Eric Botcazou
Pascal Obry
Thomas Quinot
Ed Schonberg
Andreas Krebbel