Tweak Interface_field_reference_expression::do_get_backend to apply an
additional backend type conversion to the returned result. This is
needed due to the fact that the top level type of the expression is a
function descriptor, however the value being manufactured is a pointer
to <thunk-descriptor, value> struct.
Reviewed-on: https://go-review.googlesource.com/51712
From-SVN: r250686
We recently started walking through the hash table of pointer types to
finalize them. Unfortunately it is possible to create a new pointer
type while finalizing an existing one (test case: test/fixedbugs/issue5291)
and that breaks the iteration. So, instead, keep a list of
placeholder pointer types, and iterate through them while permitting
the list to be extended as we go.
Reviewed-on: https://go-review.googlesource.com/51771
From-SVN: r250683
For calls that return multiple results we used to create a temporary
of struct type to hold the results, and also create a separate
temporary for each result. Then the call expression would copy each
result out of the struct to the temporary, and Call_result_expression
would refer to the desired temporary.
Simplify this to just use a single temporary of struct type, and
change Call_result_expression to fetch a field of the struct.
This may reduce some incorrect tree sharing in the backend code.
Reviewed-on: https://go-review.googlesource.com/51770
From-SVN: r250682
* tree-predcom.c: (struct chain): Handle store-store chain in which
stores for elimination only store loop invariant values.
(execute_pred_commoning_chain): Ditto.
(prepare_initializers_chain_store_elim): Ditto.
(prepare_finalizers): Ditto.
(is_inv_store_elimination_chain): New function.
(initialize_root_vars_store_elim_1): New function.
From-SVN: r250670
* tree-predcom.c: Revise general description of the pass.
(enum chain_type): New enum type for store elimination.
(struct chain): New field supporting store elimination.
(struct component): Ditto.
(dump_chain): Dump store-stores chain.
(release_chain): Release resources.
(split_data_refs_to_components): Compute and create component
contains only stores for elimination.
(get_chain_last_ref_at): New function.
(make_invariant_chain): Initialization.
(make_rooted_chain): Specify chain type in parameter and record it.
(add_looparound_copies): Skip for store-stores chain.
(determine_roots_comp): Compute type of chain and pass it to
make_rooted_chain.
(initialize_root_vars_store_elim_2): New function.
(finalize_eliminated_stores): New function.
(remove_stmt): Handle store for elimination.
(execute_pred_commoning_chain): Execute predictive commoning on
store-store chains.
(determine_unroll_factor): Skip unroll for store-stores chain.
(prepare_initializers_chain_store_elim): New function.
(prepare_initializers_chain): Hanlde store-store chain.
(prepare_finalizers_chain, prepare_finalizers): New function.
(tree_predictive_commoning_loop): Return integer value indicating
if loop is unrolled or lcssa form is corrupted.
(tree_predictive_commoning): Rewrite for lcssa form if necessary.
gcc/testsuite
* gcc.dg/tree-ssa/predcom-dse-1.c: New test.
* gcc.dg/tree-ssa/predcom-dse-2.c: New test.
* gcc.dg/tree-ssa/predcom-dse-3.c: New test.
* gcc.dg/tree-ssa/predcom-dse-4.c: New test.
* gcc.dg/tree-ssa/predcom-dse-5.c: New test.
* gcc.dg/tree-ssa/predcom-dse-6.c: New test.
* gcc.dg/tree-ssa/predcom-dse-7.c: New test.
* gcc.dg/tree-ssa/predcom-dse-8.c: New test.
* gcc.dg/tree-ssa/predcom-dse-9.c: New test.
* gcc.dg/tree-ssa/predcom-dse-10.c: New test.
* gcc.dg/tree-ssa/predcom-dse-11.c: New test.
From-SVN: r250669
* tree-predcom.c (initialize_root): Delete.
(execute_pred_commoning_chain): Initialize root vars and replace
reference of non-combined chain directly, rather than call above
function.
From-SVN: r250668
* tree-predcom.c (struct chain): New field init_seq.
(release_chain): Release init_seq.
(prepare_initializers_chain): Record intialization stmts in above
field.
(insert_init_seqs): New function.
(tree_predictive_commoning_loop): Call insert_init_seqs.
From-SVN: r250666
2017-07-28 Richard Biener <rguenther@suse.de>
* match.pd: Remove superfluous :c.
* genmatch.c (simplify::id): Add member.
(lower_commutative, lower_opt_convert, lower_cond, lower_for):
Copy id.
(current_id): New global.
(dt_node::parent): Move from ...
(dt_operand::parent): ... here. Add for_id member.
(is_a_helper <dt_operand *>::test): DT_TRUE is also a dt_operand.
(decision_tree::find_node): Relax order requirement when
merging DT_TRUE nodes to ones inbetween the current simplify
and the one we try to merge with. Add diagnostic whenever
we need to enforce pattern order by not merging.
(decision_tree::insert): Set current_id.
(decision_tree::print_node): Dump parent node and for_id.
(parser::last_id): Add member.
(parser::push_simplify): Assign unique id.
(parser::parser): Initialize last_id.
From-SVN: r250664
2017-07-28 Martin Liska <mliska@suse.cz>
PR sanitizer/81340
* sanopt.c (sanitize_rewrite_addressable_params): Set VALUE_EXPR after
gimple_build_debug_bind.
2017-07-28 Martin Liska <mliska@suse.cz>
PR sanitizer/81340
* g++.dg/asan/pr81340.C: New test.
From-SVN: r250660
2017-07-28 Martin Liska <mliska@suse.cz>
PR sanitizer/81460
* sanopt.c (sanitize_rewrite_addressable_params): Do not rewrite
parameters that are of a variable-length.
2017-07-28 Martin Liska <mliska@suse.cz>
PR sanitizer/81460
* gcc.dg/asan/pr81460.c: New test.
From-SVN: r250655
PR tree-optimization/81578
* tree-parloops.c (build_new_reduction): Bail out if
reduction_code isn't one of the standard OpenMP reductions.
Move the details printing after that decision.
* gcc.dg/pr81578.c: New test.
From-SVN: r250651
PR c/45784
* c-omp.c (c_finish_omp_for): If the condition is wrapped in
rhs of COMPOUND_EXPR(s), skip them and readd their lhs into
new COMPOUND_EXPRs around the rhs of the comparison.
* testsuite/libgomp.c/pr45784.c: New test.
* testsuite/libgomp.c++/pr45784.C: New test.
From-SVN: r250635
During combine GCC tries to merge CMP (with zero) and AND into a TST. However,
in cases where an ANDS operand is not compatible, this was being missed. Adding
a define_split where this operand was moved to a register seems to help out.
Committed on behalf of Sudi Das
---
gcc/
2017-07-27 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Sudakshina Das <sudi.das@arm.com>
* config/aarch64/aarch64.md
(define_split for and<mode>3nr_compare): Move
non aarch64_logical_operand to a register.
(define_split for and_<SHIFT:optab><mode>3nr_compare0): Move non
register immediate operand to a register.
* config/aarch64/predicates.md (aarch64_mov_imm_operand): New.
gcc/testsuite
2017-07-27 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Sudakshina Das <sudi.das@arm.com>
* gcc.target/aarch64/tst_imm_split_1.c: New Test.
Co-Authored-By: Sudakshina Das <sudi.das@arm.com>
From-SVN: r250631
