PR debug/67664
* dwarf2out.c (add_location_or_const_value_attribute): Remove
attribute parameter. Early exit if either DW_AT_const_value
or DW_AT_location are present already.
(gen_variable_die): Adjust caller.
(dwarf2out_late_global_decl): Likewise.
gcc/
PR target/67657
* config/sh/sh.c (sh_remove_overlapping_post_inc,
sh_peephole_emit_move_insn): Add new functions.
* config/sh/sh-protos.h (sh_remove_overlapping_post_inc,
sh_peephole_emit_move_insn): Declere them.
* config/sh/sh.md: Use them in various peephole2 patterns.
manu [Mon, 21 Sep 2015 10:11:24 +0000 (10:11 +0000)]
[PR middle-end/60832] Do not convert widest_int to tree just for printing it.
In do_warn_aggressive_loop_optimizations, we convert to a tree just to print a
widest_int. Apart from overly complicated, this results in printing '3u'
instead of just '3'.
Unfortunately, adding a printf-like conversion specifier would require making
pretty-print.c link with wide-int.cc, which will include a lot of new
dependencies into several other programs (gcov-tool for example). It would be
possible to add the conversion specifier to every FE pretty-printer, but this
still would require updating c-format.c, which is far from trivial. A simpler
approach is to convert to a string rather than to a tree.
In addition, "iteration 3 invokes undefined behavior within this loop" seems to
me clearer than "iteration 3 invokes undefined behavior; containing loop".
gcc/testsuite/ChangeLog:
2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR middle-end/60832
* gcc.dg/pr53265.c: Update.
gcc/ChangeLog:
2015-09-21 Manuel López-Ibáñez <manu@gcc.gnu.org>
PR middle-end/60832
* tree-ssa-loop-niter.c (do_warn_aggressive_loop_optimizations):
Print i_bound without converting it to a tree.
* config/arm/arm.c (thumb_output_move_mem_multiple): Replaced
operands[4] operands[5] swap with std::swap, removed tmp variable.
(arm_evpc_neon_vzip): Replaced in0/in1 and
out0/out1 swaps with std::swap, removed x variable.
(arm_evpc_neon_vtrn): Replaced in0/int1 and
out0/out1 swaos with std::swap, removed x variable.
(arm_expand_vec_perm_const_1): Replaced
d->op0/d->op1 swap with std::swap, removed x variable.
(arm_evpc_neon_vuzp): Replaced in0/in1 and
out0/out1 swaps with std::swap, removed x variable.
This renames the gimple_statement_base struct to gimple removes the
typedef of gimple_statement_base * to gimple, and then adjusts all of
the places that use the type.
* coretypes.h (gimple): Change typedef to be a forward
declaration.
* gimple.h (gimple_statement_base): rename to gimple.
* (all functions and types using gimple): Adjust.
* *.[ch]: Likewise.
law [Sat, 19 Sep 2015 02:56:15 +0000 (02:56 +0000)]
[PATCH] avail_expr_stack is no longer file scoped
PR tree-optimization/47679
* tree-ssa-dom.c (avail_exprs_stack): No longer file scoped. Move
it here ...
(dom_opt_dom_walker): New private member holding the avail_exprs_stack
object. Update constructor.
(pass_dominator::execute): Corresponding chagnes to declaration
and initialization of avail_exprs_stack. Update constructor call
for dom_opt_dom_walker object.
(lookup_avail_expr, record_cond): Accept additional argument. Pass
it down to children as needed.
(record_equivalences_from_incoming_edge): Likewise.
(eliminate_redundant_computations): Likewise.
(record_equivalences_from_stmt): Likewise.
(simplify_stmt_for_jump_threading): Likewise.
(record_temporary_equivalences): Likewise.
(optimize_stmt): Likewise.
(dom_opt_dom_walker::thread_across_edge): Update access to
avail_exprs_stack object and pass it to children as needed.
(dom_opt_dom_walker::before_dom_children): Similarly.
(dom_opt_dom_walker::after_dom_children): Similarly.
* tree-ssa-threadedge.c (pfn_simplify): New typedef.
(record_temporary_equivalences_from_stmts_at_dest): Use new typedef.
Add avail_expr_stack argument. Pass it to children as needed.
(dummy_simplify): Likewise.
(simplify_control_stmt_condition): Likewise.
(thread_around_empty_blocks): Likewise.
(thread_through_normal_block): Likewise.
(thread_across_edge): Likewise.
* tree-ssa-threadedge.h (thread_across_edge): Update prototype.
* tree-vrp.c (simplify_stmt_for_jump_threading): Update.
law [Fri, 18 Sep 2015 19:33:48 +0000 (19:33 +0000)]
[PATCH] const_and_copies is no longer file scoped
PR tree-optimization/47679
* tree-ssa-dom.c (const_and_copies): No longer file scoped. Move
it here ...
(dom_opt_dom_walker): New private member holding the const_and_copies
object. Update constructor.
(pass_dominator::execute): Corresponding changes to declaration
and initialization of const_and_copies. Update constructor call
for the dom_opt_dom_walker object.
(record_temporary_equivalences): Accept const_and_copies argument
pass it down to children as needed.
(record_equality): Likewise.
(record_equivalences_from_incoming_edge): Likewise.
(cprop_into_successor_phis, optimize_stmt): Likewise.
(eliminate_redundant_computations): Likewise.
(dom_opt_dom_walker::thread_across_edge): Update access to
const_and_copies object and pass it to children as needed.
(dom_opt_dom_walker::before_dom_children): Similarly.
(dom_opt_dom_walker::after_dom_children): Similarly.
law [Fri, 18 Sep 2015 19:12:22 +0000 (19:12 +0000)]
[PATCH] avail_exprs is no longer file scoped
* tree-ssa-dom.c (avail_exprs): No longer file scoped. Bury
it into the avail_exprs_stack class.
(pass_dominator::execute): Corresponding changes to declaration
and initialization of avail_exprs. Pass avail_exprs to
dump_dominator_optimization_stats.
(record_cond): Extract avail_exprs from avail_exprs_stack.
(lookup_avail_expr): Similarly.
(htab_staticstics): Remove unnecessary prototype. Move to earlier
position in file.
(dump_dominator_optimization_stats): Make static and prototype.
Add argument for the hash table to dump.
(debug_dominator_optimization_stats): Remove.
* tree-ssa-dom.h (dump_dominator_optimization_stats): Remove
prototype.
(debug_dominator_optimization_stats): Similarly.
* tree-ssa-scopedtables.h (class avail_exprs_stack): Add missing
"void" in prototype for pop_to_marker method. Add accessor method
for the underlying avail_exprs table.
law [Fri, 18 Sep 2015 15:29:01 +0000 (15:29 +0000)]
[PATCH] Break out phi-only cprop into its own file
PR tree-optimization/47679
* Makefile.in (OBJS): Add tree-ssa-phionlycprop.o
* tree-ssa-dom.c: Remove unnecessary header includes.
(remove_stmt_or_phi): Moved from here into tree-ssa-phionlycprop.c
(get_rhs_or_phi_arg, get_lhs_or_phi_result): Likewise.
(propagate_rhs_into_lhs, eliminate_const_or_copy): Likewise.
(eliminate_degenerate_phis_1, pass_phi_only_cprop): Likewise.
(pass_phi_only_cprop::execute): Likewise.
(make_pass_phi_only_cprop): Likewise.
* tree-ssa-phionlycprop.c: New file with moved code. Eliminate
uses of file scoped statics by passing the required objects
as parameters wherever needed.
* dwarf2out.c (append_entry_to_tmpl_value_parm_die_table): Assert
we're in early phase.
(schedule_generic_params_dies_gen): Likewise.
(gen_remaining_tmpl_value_param_die_attribute): Do only as much
work as possible, retaining unhandled cases.
(gen_scheduled_generic_parms_dies): Set early-dwarf flag and
clear out generic_type_instances at the end.
(dwarf2out_finish): Move call to gen_scheduled_generic_parms_dies...
(dwarf2out_early_finish): ... here. Do most of
gen_remaining_tmpl_value_param_die_attribute here.
* include/precompiled/extc++.h: Fix bootstrap error due to
unconditional inclusion of <ext/enc_filebuf.h>.
* include/ext/random: Check for definition of UINT32_C.
PR tree-optimization/66142
* fold-const.c (operand_equal_p): When OEP_ADDRESS_OF
treat MEM[&x] and x the same.
* tree-ssa-sccvn.h (vn_reference_fold_indirect): Remove.
* tree-ssa-sccvn.c (vn_reference_fold_indirect): Return true
when we simplified sth.
(vn_reference_maybe_forwprop_address): Likewise.
(valueize_refs_1): When we simplified through
vn_reference_fold_indirect or vn_reference_maybe_forwprop_address
set valueized_anything to true.
(vn_reference_lookup_3): Use stmt_kills_ref_p to see whether
one ref kills the other instead of just a offset-based test.
* tree-ssa-alias.c (stmt_kills_ref_p): Use OEP_ADDRESS_OF
for the operand_equal_p test to compare bases and also compare
sizes.
PR libstdc++/65913
* builtins.c (fold_builtin_atomic_always_lock_free): Handle fake
pointers that encode the alignment of the object.
libstdc++-v3:
2015-09-17 Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/65913
* include/bits/atomic_base.h (__atomic_base<_TTp>::is_lock_free(),
__atomic_base<_PTp*>::is_lock_free()): Call the built-in with the
immediate pointer value, not a variable.
* include/std/atomic (atomic<T>::is_lock_free()): Likewise.
* testsuite/29_atomics/atomic/65913.cc: New.
* include/bits/allocator.h (__shrink_to_fit_aux<T, true>::_S_do_it):
Do nothing if exceptions are disabled.
* include/bits/basic_string.h (basic_string::shrink_to_fit): Likewise.
optabs.[hc] is a bit of a behemoth. It includes basic functions for querying
what a target can do, related tree- and gimple-level query functions,
related rtl-level query functions, and the functions that actually
generate code. Some gimple optimisations therefore need:
purely to query whether the target has support for a particular operation.
This patch splits optabs up as follows:
- optabs-query.[hc]: IL-independent functions for querying what a target
can do natively.
- optabs-tree.[hc]: tree and gimple query functions (an extension of
optabs-query.[hc]).
- optabs-libfuncs.[hc]: optabs-specific libfuncs (an extension of
libfuncs.h)
- optabs.h: For now includes optabs-query.h and optabs-libfuncs.h.
Only two files outside optabs need to include both optabs.h and
optabs-tree.h: expr.c and function.c. I think that's expected given
that both are related to expand.
It might be good to split optabs.h further, but this is already quite
a big patch.
I changed can_conditionally_move_p from returning an int to returning
a bool and fixed a few formatting glitches. There should be no other
changes to the functions themselves.
gcc/
* Makefile.in (OBJS): Add optabs-libfuncs.o, optabs-query.o
and optabs-tree.o.
(GTFILES): Replace optabs.c with optabs-libfunc.c.
* genopinit.c (main): Add an include guard to insn-opinit.h.
Protect the rtx_code parts with NUM_RTX_CODE.
* optabs.h: Split parts out to...
* optabs-libfuncs.h, optabs-query.h, optabs-tree.h: ...these
new files.
* optabs.c: Split parts out to...
* optabs-libfuncs.c, optabs-query.c, optabs-tree.c: ...these
new files.
* cilk-common.c: Include optabs-query.h rather than optabs.h.
* fold-const.c: Likewise.
* target-globals.c: Likewise.
* tree-if-conv.c: Likewise.
* tree-ssa-forwprop.c: Likewise.
* tree-ssa-loop-prefetch.c: Likewise.
* tree-ssa-math-opts.c: Include optabs-tree.h rather than
optabs.h. Remove unncessary include files.
* tree-ssa-phiopt.c: Likewise.
* tree-ssa-reassoc.c: Likewise.
* tree-switch-conversion.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-generic.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-patterns.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* tree-vrp.c: Likewise.
* toplev.c: Include optabs-query.h and optabs-libfuncs.h
rather than optabs.h.
* expr.c: Include optabs-tree.h.
* function.c: Likewise.
ian [Thu, 17 Sep 2015 13:57:40 +0000 (13:57 +0000)]
compiler: Issue channel type errors earlier.
When asking for the type of a receive operation, the compiler would
return an error type if the receive operator was being used on an
invalid channel type and the error would be reported in a later pass.
There are several ways that the type checking pass would not see
the original node and fail to issue the error. This patch modifies
receive operations to give an error immediately once it is known that
the channel type is invalid.
PR middle-end/65958
* config/arm/linux-elf.h (STACK_CHECK_STATIC_BUILTIN): Define.
* config/arm/arm-protos.h (output_probe_stack_range): Declare.
* config/arm/arm.c: Include common/common-target.h.
(use_return_insn): Return 0 if the static chain register was saved
above a non-APCS frame.
(arm_compute_static_chain_stack_bytes): Adjust for stack checking.
(struct scratch_reg): New.
(get_scratch_register_on_entry): New function.
(release_scratch_register_on_entry): Likewise.
(arm_emit_probe_stack_range): Likewise.
(output_probe_stack_range): Likewise.
(arm_expand_prologue): Factor out code dealing with the IP register
for nested function and adjust it for stack checking.
Invoke arm_emit_probe_stack_range if static builtin stack checking
is enabled.
(thumb1_expand_prologue): Sorry out if static builtin stack checking
is enabled.
(arm_expand_epilogue): Add the saved static chain register, if any, to
the amount of pre-pushed registers to pop.
(arm_frame_pointer_required): Return true if static stack checking is
enabled and we want to catch the exception with the EABI unwinder.
* config/arm/unspecs.md (UNSPEC_PROBE_STACK): New constant.
(UNSPEC_PROBE_STACK_RANGE): Likewise.
* config/arm/arm.md (probe_stack): New insn.
(probe_stack_range): Likewise.
* passes.c (rest_of_decl_compilation): Always call early_global_decl
debug hook when we created a varpool node.
* dwarf2out.c (dwarf2out_late_global_decl): When in LTO call
dwarf2out_early_global_decl, when not just add location or
value attributes to existing DIEs.
PR fortran/52846
PR fortran/67588
* module.c : Add static no_module_procedures.
(gfc_match_submodule): Correct memory leakage caused during the
freeing of use_lists.
(mio_symbol_attribute): Reset above if module procedure is
encountered.
(gfc_dump_module): Set above and exit without writing smod file
if it reset.
* gfortran.texi : Add section on submodule support.
2015-09-17 Paul Thomas <pault@gcc.gnu.org>
PR fortran/52846
* gfortran.dg/public_private_module_5.f90: Add module procedure
trigger_smod to ensure that the smod file is written.
PR tree-optimization/66388
* tree-ssa-loop-ivopts.c (struct iv, iv_cand, ivopts_data): New
fields.
(dump_iv): Dump no_overflow information.
(alloc_iv): Initialize new field for struct iv.
(mark_bivs): Count number of no_overflow bivs.
(find_deriving_biv_for_expr, record_biv_for_address_use): New
functions.
(idx_find_step): Call new functions above.
(add_candidate_1, add_candidate): New paramter.
(add_iv_candidate_for_biv): Add sizetype cand for BIV.
(get_computation_aff): Simplify convertion of cand for BIV.
(get_computation_cost_at): Step cand's base if necessary.
* tree-ssa-loop-niter.c (tree_simplify_using_condition_1): New
parameter.
(tree_simplify_using_condition): Ditto.
(simplify_using_initial_conditions): Ditto.
(loop_exits_before_overflow): Pass new argument to function
simplify_using_initial_conditions. Remove case for type conversions
simplification.
* tree-ssa-loop-niter.h (simplify_using_initial_conditions): New
parameter.
* tree-scalar-evolution.c (simple_iv): Simplify type conversions
in iv base using loop initial conditions.
gcc/testsuite/ChangeLog
* gcc.dg/tree-ssa/loop-bound-2.c: New test.
* gcc.dg/tree-ssa/loop-bound-4.c: New test.
* gcc.dg/tree-ssa/loop-bound-6.c: New test.
law [Thu, 17 Sep 2015 03:01:03 +0000 (03:01 +0000)]
[PATCH] Pass in avail_expr_stack and setup edge_infos earlier
PR tree-optimization/47679
* tree-ssa-dom.c (free_edge_info): Factored out of free_all_edge_infos.
(free_all_edge_infos): Use it.
(allocate_edge_info): Free preexisting edge info data.
(pass_dominator::execute): Set up initial edge info structures.
(dom_opt_dom_walker::thread_across_edge): Pass avail_expr_stack to
thread_across_edge.
* tree-ssa-threadedge.c (thread_across_edge): Accept new argument. If
non-null, then push/pop markers appropriately.
* tree-ssa-threadedge.h (thread_across_edge): Update prototype.
* tree-vrp.c (identify_jump_threads): Pass NULL for new argument to
thread-across_edge.
manu [Wed, 16 Sep 2015 21:25:28 +0000 (21:25 +0000)]
Move check_global_declaration from toplev.c to cgraphunit.c
Unfortunately, toplev.c is a kitchen sink of things that do not belong anywhere
in particular. For example, check_global_declarations is only used in
cgraphunit.c. Moving it there allows us to make it static and remove one call
to symtab_node::get.
gcc/ChangeLog:
2015-09-16 Manuel López-Ibáñez <manu@gcc.gnu.org>
* toplev.h (check_global_declaration): Remove declaration.
* toplev.c (check_global_declaration): Move to ...
* cgraphunit.c: ... here. Make it static and pass a symtab_node *.
(analyze_functions): Update call.
With the new shrink-wrap algorithm, blocks reachable both with and
without prologue are duplicated, and their incoming edges are then
distributed accordingly. So we need to call fixup_partitions.
ian [Tue, 15 Sep 2015 21:15:37 +0000 (21:15 +0000)]
libgo: If compiler can split-stack and linker can not, use -fno-split-stack.
If the compiler supports split-stack but we are using a gold linker that
does not, as happens on PPC with current GCC but old gold, then we need
to compile the Go code with -fno-split-stack to avoid a linker error
avoid the inability to call from split-stack code to non-split-stack
code.
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