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:
#include "insn-config.h"
#include "expmed.h"
#include "dojump.h"
#include "explow.h"
#include "emit-rtl.h"
#include "varasm.h"
#include "stmt.h"
#include "expr.h"
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.
From-SVN: r227865
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.
Fixesgolang/go#12323.
Reviewed-on: https://go-review.googlesource.com/13987
From-SVN: r227863
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.
From-SVN: r227860
2015-09-17 Richard Biener <rguenther@suse.de>
* 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.
From-SVN: r227857
2015-09-17 Paul Thomas <pault@gcc.gnu.org>
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.
From-SVN: r227855
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.
From-SVN: r227844
* 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.
From-SVN: r227843
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.
From-SVN: r227842
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.
From-SVN: r227835
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.
2015-09-16 Segher Boessenkool <segher@kernel.crashing.org>
PR bootstrap/67587
* function.c (rest_of_handle_thread_prologue_and_epilogue): Call
fixup_partitions.
From-SVN: r227827
2015-09-16 Richard Biener <rguenther@suse.de>
PR middle-end/67253
* cfgexpand.c (expand_gimple_stmt_1): Do not clobber
location of possibly shared trees.
* gcc.dg/torture/pr67253.c: New testcase.
From-SVN: r227826
2015-09-16 Richard Biener <rguenther@suse.de>
PR middle-end/67271
* fold-const.c (native_encode_expr): Bail out on bogus offsets.
* gcc.dg/pr67271.c: New testcase.
From-SVN: r227825
2015-09-16 Richard Biener <rguenther@suse.de>
PR middle-end/67442
* fold-const.c (extract_muldiv_1): Properly extend multiplication
result before builting a tree via wide_int_to_tree.
* gcc.dg/torture/pr67442.c: New testcase.
From-SVN: r227818
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.
Reviewed-on: https://go-review.googlesource.com/14598
From-SVN: r227811
2015-09-15 Max Filippov <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.h (DWARF_ALT_FRAME_RETURN_COLUMN): New
definition.
(DWARF_FRAME_REGISTERS): Reserve space for one extra register in
call0 ABI.
libgcc/
* config/xtensa/linux-unwind.h (xtensa_fallback_frame_state):
Add support for call0 ABI.
From-SVN: r227809
2015-09-15 Max Filippov <jcmvbkbc@gmail.com>
gcc/
* config/xtensa/xtensa.c (xtensa_call_tls_desc): Use a10 or a2
to pass TLS call argument, according to current ABI.
* config/xtensa/xtensa.md (tls_call pattern): Use callx8 or
callx0 for TLS call, according to current ABI.
From-SVN: r227808
* tree-eh.c (lower_try_finally_dup_block): Clear location information
on stack restore statements.
(decide_copy_try_finally): Do not consider a stack restore statement as
coming from sources.
From-SVN: r227805
PR c/67580
* c-decl.c (tag_exists_p): New function.
* c-parser.c (c_parser_declaration_or_fndef): Give a hint when
struct/union/enum keywords are missing.
* c-tree.h (tag_exists_p): Declare.
* gcc.dg/pr67580.c: New test.
From-SVN: r227803
PPC has split-stack support in current GCC, but old version of gold will
reject attempts to link PPC split-stack and non-split-stack code
together. Test for that, and don't compile the C code with
-fsplit-stack if it doesn't work.
Reviewed-on: https://go-review.googlesource.com/14594
From-SVN: r227802
PR tree-optimization/47679
* tree-ssa-dom.c (expr_hash_elt): Now a class with ctors/dtors,
methods and private members.
(avail_exprs_stack): Similarly. Change type of global
from a pair of expr_hash_elt_t to the new class.
(expr_elt_hasher::hash): Corresponding changes.
(expr_elt_hasher::equal): Similarly.
(avail_expr_hash): Similarly.
(pass_dominator::execute): Similarly.
(dom_opt_dom_walker::thread_across_edge): Similarly.
(record_cond): Similarly.
(dom_opt_dom_walker::before_dom_children): Similarly.
(dom_opt_dom_walker::after_dom_children): Similarly.
(lookup_avail_expr): Likewise.
(initialize_hash_element): Now a expr_hash_elt constructor.
(initialize_hash_element_from_expr): Similarly.
(free_expr_hash_elt_contents): Now a dtor for class expr_hash_elt.
(free_expr_hash_elt): Call dtor for the element.
(remove_local_expressions_from_table): Now the "pop_to_marker"
method in the available_exprs_stack class.
(avail_expr_stack::record_expr): Method factored out.
(print_expr_hash_elt): Now a method in the expr_hash_elt class.
Fix formatting.
(hashable_expr_equal_p): Fix formatting.
From-SVN: r227801
gcc/ChangeLog:
* input.h (location_get_source_line): Drop "expanded_location"
param in favor of a file and line number.
* input.c (location_get_source_line): Likewise.
(dump_location_info): Update for change in signature of
location_get_source_line.
* diagnostic.c (diagnostic_print_caret_line): Likewise.
gcc/c-family/ChangeLog:
* c-format.c (location_from_offset): Update for change in
signature of location_get_source_line.
* c-indentation.c (get_visual_column): Likewise.
(line_contains_hash_if): Likewise.
From-SVN: r227800
* config/arm/arm.c (arm_gen_constant): Use HOST_WIDE_INT_M1U instead
of -1 when shifting. Change type of val to unsigned HOST_WIDE_INT.
Update prototype.
From-SVN: r227798
2015-09-15 Richard Biener <rguenther@suse.de>
PR tree-optimization/67470
* tree-ssa-loop-im.c (execute_sm_if_changed): Preserve PHI
structure for PHI hoisting by inserting a forwarder block
if appropriate.
* gcc.dg/torture/pr67470.c: New testcase.
From-SVN: r227797
* c-decl.c (lookup_label): Return NULL_TREE instead of 0.
(lookup_tag): Change the type of THISLEVEL_ONLY to bool.
Return NULL_TREE instead of 0.
(lookup_name): Return NULL_TREE instead of 0.
(lookup_name_in_scope): Likewise.
(shadow_tag_warned): Use true instead of 1 and NULL_TREE instead of 0.
(parser_xref_tag): Use false instead of 0.
(start_struct): Use true instead of 1.
(start_enum): Use true instead of 1 and NULL_TREE instead of 0.
From-SVN: r227791
