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  1. 20 May, 2016 16 commits
    • Implement CALL_EXPR_MUST_TAIL_CALL · 9a385c2d 
      This patch implements support for marking CALL_EXPRs
as being mandatory for tail-call-optimization. expand_call
tries harder to perform the optimization on such CALL_EXPRs,
and issues an error if it fails.

Currently this flag isn't accessible from any frontend,
so the patch uses a plugin for testing the functionality.

gcc/ChangeLog:
	* calls.c (maybe_complain_about_tail_call): New function.
	(initialize_argument_information): Call
	maybe_complain_about_tail_call when clearing *may_tailcall.
	(can_implement_as_sibling_call_p): Call
	maybe_complain_about_tail_call when returning false.
	(expand_call): Read CALL_EXPR_MUST_TAIL_CALL and, if set,
	ensure try_tail_call is set.  Call maybe_complain_about_tail_call
	if tail-call optimization fails.
	* cfgexpand.c (expand_call_stmt): Initialize
	CALL_EXPR_MUST_TAIL_CALL from gimple_call_must_tail_p.
	* gimple-pretty-print.c (dump_gimple_call): Dump
	gimple_call_must_tail_p.
	* gimple.c (gimple_build_call_from_tree): Call
	gimple_call_set_must_tail with the value of
	CALL_EXPR_MUST_TAIL_CALL.
	* gimple.h (enum gf_mask): Add GF_CALL_MUST_TAIL_CALL.
	(gimple_call_set_must_tail): New function.
	(gimple_call_must_tail_p): New function.
	* print-tree.c (print_node): Update printing of TREE_STATIC
	to reflect its use for CALL_EXPR_MUST_TAIL_CALL.
	* tree-core.h (struct tree_base): Add MUST_TAIL_CALL to the
	trailing comment listing applicable flags.
	* tree.h (CALL_EXPR_MUST_TAIL_CALL): New macro.

gcc/testsuite/ChangeLog:
	* gcc.dg/plugin/must-tail-call-1.c: New test case.
	* gcc.dg/plugin/must-tail-call-2.c: New test case.
	* gcc.dg/plugin/must_tail_call_plugin.c: New file.
	* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above.

From-SVN: r236514
      David Malcolm committed
    • Introduce can_implement_as_sibling_call_p · b40d90e6 
      gcc/ChangeLog:
	* calls.c (expand_call): Move "Rest of purposes for tail call
	optimizations to fail" to...
	(can_implement_as_sibling_call_p): ...this new function, and
	split into multiple "if" statements.

From-SVN: r236513
      David Malcolm committed
    • cfgloop.h (expected_loop_iterations_unbounded, [...]): Unconstify. · 97c53806 
      	* cfgloop.h (expected_loop_iterations_unbounded,
	expected_loop_iterations): Unconstify.
	* cfgloopanal.c (expected_loop_iterations_unbounded): Sanity check the
	profile with known upper bound; return 3 when profile is absent.
	(expected_loop_iterations): Update.

From-SVN: r236511
      Jan Hubicka committed
    • loop-doloop.c (doloop_optimize): Use get_estimated_loop_iterations_int and… · 216e8374 
      loop-doloop.c (doloop_optimize): Use get_estimated_loop_iterations_int and get_max_loop_iterations_int.

	* loop-doloop.c (doloop_optimize): Use get_estimated_loop_iterations_int
	and get_max_loop_iterations_int.

From-SVN: r236509
      Jan Hubicka committed
    • prefetch-5.c: xfail. · 77c9d5b4 
      	* gcc.dg/tree-ssa/prefetch-5.c: xfail.
	* tree-ssa-loop-niter.c (idx_infer_loop_bounds): We can not produce
	realistic upper bounds here.

From-SVN: r236508
      Jan Hubicka committed
    • re PR libstdc++/71081 (experimental/memory_resource/1.cc run for targets without atomics) · 11f8114b 
      2016-05-20  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    PR libstdc++/71081
    * testsuite/experimental/memory_resource/1.cc: Add required argument
    to dg-require-atomic-builtins.

From-SVN: r236507
      Thomas Preud'homme committed
    • re PR c++/71210 (internal compiler error: in assign_temp, at function.c:961) · 18954840 
      	PR c++/71210
	* gimple-fold.c (gimple_fold_call): Do not remove lhs of noreturn
	calls if the LHS is variable length or has addressable type.
	If targets[0]->decl is a noreturn call with void return type and
	zero arguments, adjust fntype and remove lhs in that case.

	* g++.dg/opt/pr71210-1.C: New test.
	* g++.dg/opt/pr71210-2.C: New test.

From-SVN: r236506
      Jakub Jelinek committed
    • re PR target/29756 (SSE intrinsics hard to use without redundant temporaries appearing) · 68047971 
      	PR tree-optimization/29756
	gcc.dg/tree-ssa/vector-6.c: Add -Wno-psabi -w to dg-options.
	Add -msse2 for x86 and -maltivec for powerpc.  Use scan-tree-dump-times
	only on selected targets where V4SImode vectors are known to be
	supported.

From-SVN: r236505
      Jakub Jelinek committed
    • PR71206: inconsistent types after match.pd transformation · d78789f5 
      2016-05-20  Marc Glisse  <marc.glisse@inria.fr>

	PR tree-optimization/71079
	PR tree-optimization/71206
gcc/
	* match.pd ((X ^ Y) ^ (X ^ Z)): Convert the arguments.

gcc/testsuite/
	* gcc.dg/tree-ssa/pr71206.c: New testcase.

From-SVN: r236504
      Marc Glisse committed
    • Add test-cases mentioned in r236502. · 5b17a01c 
      From-SVN: r236503
      Prathamesh Kulkarni committed
    • tree-vectorizer.c (get_vec_alignment_for_decl): New static function. · 550fa093 
      2016-05-20  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

	* tree-vectorizer.c (get_vec_alignment_for_decl): New static function.
	(get_vec_alignment_for_array_decl): Likewise.
	(get_vec_alignment_for_record_decl): Likewise.
	(increase_alignment::execute): Move code to find alignment to
	get_vec_alignment_for_array_decl and call get_vec_alignment_for_decl.
	(type_align_map): New hash_map.

testsuite/
	* gcc.dg/vect/section-anchors-vect-70.c: New test-case.
	* gcc.dg/vect/section-anchors-vect-71.c: Likewise.
	* gcc.dg/vect/section-anchors-vect-72.c: Likewise.

From-SVN: r236502
      Prathamesh Kulkarni committed
    • re PR target/29756 (SSE intrinsics hard to use without redundant temporaries appearing) · 483c6429 
      2016-05-20  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/29756
	* tree.def (BIT_INSERT_EXPR): New tcc_expression tree code.
	* expr.c (expand_expr_real_2): Handle BIT_INSERT_EXPR.
	* fold-const.c (operand_equal_p): Likewise.
	(fold_ternary_loc): Add constant folding of BIT_INSERT_EXPR.
	* gimplify.c (gimplify_expr): Handle BIT_INSERT_EXPR.
	* tree-inline.c (estimate_operator_cost): Likewise.
	* tree-pretty-print.c (dump_generic_node): Likewise.
	* tree-ssa-operands.c (get_expr_operands): Likewise.
	* cfgexpand.c (expand_debug_expr): Likewise.
	* gimple-pretty-print.c (dump_ternary_rhs): Likewise.
	* gimple.c (get_gimple_rhs_num_ops): Handle BIT_INSERT_EXPR.
	* tree-cfg.c (verify_gimple_assign_ternary): Verify BIT_INSERT_EXPR.

	* tree-ssa.c (non_rewritable_lvalue_p): We can rewrite
	vector inserts using BIT_FIELD_REF or MEM_REF on the lhs.
	(execute_update_addresses_taken): Do it.

	* gcc.dg/tree-ssa/vector-6.c: New testcase.

From-SVN: r236501
      Richard Guenther committed
    • re PR target/71185 (ice in gimplify_modify_expr, at gimplify.c:4873) · eb066284 
      2016-05-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/71185
	* tree-ssa-loop-prefetch.c (gather_memory_references): Drop
	register operations.

	* gcc.dg/tree-ssa/pr71185.c: New testcase.

From-SVN: r236499
      Richard Biener committed
    • tree-if-conv.c (add_bb_predicate_gimplified_stmts): Use gimple_seq_add_seq_without_update. · 58f10249 
      2016-05-20  Richard Biener  <rguenther@suse.de>

	* tree-if-conv.c (add_bb_predicate_gimplified_stmts): Use
	gimple_seq_add_seq_without_update.
	(release_bb_predicate): Assert we have no operands to free.
	(if_convertible_loop_p_1): Calculate post dominators later.
	Do not free BB predicates here.
	(combine_blocks): Do not recompute BB predicates.
	(version_loop_for_if_conversion): Save BB predicates around
	loop versioning.

	* gcc.dg/tree-ssa/ifc-cd.c: Adjust.

From-SVN: r236498
      Richard Biener committed
    • Change ENABLE_VALGRIND_CHECKING to · ceb17928 
      	* config.in: Regenerated.
	* configure: Likewise.
	* configure.ac: Handle --enable-valgrind-annotations.
	* lex.c (new_buff): Use ENABLE_VALGRIND_ANNOTATIONS instead
	of ENABLE_VALGRIND_CHECKING.
	(_cpp_free_buff): Likewise.

From-SVN: r236496
      Martin Liska committed
    • Daily bump. · 2fe676f6 
      From-SVN: r236495
      GCC Administrator committed
  3. 19 May, 2016 24 commits