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  1. 05 Oct, 2019 6 commits
    • re PR fortran/91497 (-Wconversion warns when doing explicit type conversion) · 74e4fb13 
      2019-10-05  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/91497
	* gfortran.dg/pr91497.f90: Run on i?86-*-* and x86_64-*-* only.

From-SVN: r276626
      Steven G. Kargl committed
    • re PR fortran/91926 (assumed rank optional) · 980f185c 
      2019-10-05  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91926
	* trans-expr.c (gfc_conv_gfc_desc_to_cfi_desc): Correct the
	assignment of the attribute field to account correctly for an
	assumed shape dummy. Assign separately to the gfc and cfi
	descriptors since the atribute can be different. Add btanch to
	correctly handle missing optional dummies.

2019-10-05  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91926
	* gfortran.dg/ISO_Fortran_binding_13.f90 : New test.
	* gfortran.dg/ISO_Fortran_binding_13.c : Additional source.
	* gfortran.dg/ISO_Fortran_binding_14.f90 : New test.

2019-10-05  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/91926
	* runtime/ISO_Fortran_binding.c (cfi_desc_to_gfc_desc): Do not
	modify the bounds and offset for CFI_other.

From-SVN: r276624
      Paul Thomas committed
    • [Darwin] Amend section for constants with reloactions. · d56cbcc0 
      Darwin's linker doesn't like text section relocations (they require special
enabling).  At least, the Fortran FE seems to generate cases where the
initialiser for a pointer constant can need a relocation.  We can handle
this by special-casing SECCAT_RODATA when the relocation is present by
placing the constant in the .const_data section.

gcc/ChangeLog:

2019-10-05  Iain Sandoe  <iain@sandoe.co.uk>

	PR target/59888
	* config/darwin.c (darwin_rodata_section): Add relocation flag,
	choose const_data section for constants with relocations.
	(machopic_select_section): Pass relocation flag to
	darwin_rodata_section ().

From-SVN: r276623
      Iain Sandoe committed
    • PR c++/91369 - Implement P0784R7: constexpr new · 8e007055 
      	PR c++/91369 - Implement P0784R7: constexpr new
c-family/
	* c-cppbuiltin.c (c_cpp_builtins): Predefine
	__cpp_constexpr_dynamic_alloc=201907 for -std=c++2a.
cp/
	* cp-tree.h (enum cp_tree_index): Add CPTI_HEAP_UNINIT_IDENTIFIER,
	CPTI_HEAP_IDENTIFIER and CPTI_HEAP_DELETED_IDENTIFIER.
	(heap_uninit_identifier, heap_identifier, heap_deleted_identifier):
	Define.
	(type_has_constexpr_destructor, build_new_constexpr_heap_type,
	cxx_constant_dtor): Declare.
	* class.c (type_maybe_constexpr_default_constructor): Make static.
	(type_maybe_constexpr_destructor, type_has_constexpr_destructor): New
	functions.
	(finalize_literal_type_property): For c++2a, don't clear
	CLASSTYPE_LITERAL_P for types without trivial destructors unless they
	have non-constexpr destructors.
	(explain_non_literal_class): For c++2a, complain about non-constexpr
	destructors rather than about non-trivial destructors.
	* constexpr.c: Include stor-layout.h.
	(struct constexpr_global_ctx): New type.
	(struct constexpr_ctx): Add global field, remove values and
	constexpr_ops_count.
	(cxx_replaceable_global_alloc_fn): New inline function.
	(cxx_eval_call_expression): For c++2a allow calls to replaceable
	global allocation functions, for new return address of a heap uninit
	var, for delete record its deletion.  Change ctx->values->{get,put} to
	ctx->global->values.{get,put}.
	(non_const_var_error): Add auto_diagnostic_group sentinel.  Emit
	special diagnostics for heap variables.
	(cxx_eval_store_expression): Change ctx->values->{get,put} to
	ctx->global->values.{get,put}.
	(cxx_eval_loop_expr): Initialize jump_target if NULL.  Change
	new_ctx.values->remove to ctx->global->values.remove.
	(cxx_eval_constant_expression): Change *ctx->constexpr_ops_count
	to ctx->global->constexpr_ops_count.  Change ctx->values->{get,put} to
	ctx->global->values.{get,put}.
	<case NOP_EXPR>: Formatting fix.  On cast of replaceable global
	allocation function to some pointer type, adjust the type of
	the heap variable and change name from heap_uninit_identifier
	to heap_identifier.
	(find_heap_var_refs): New function.
	(cxx_eval_outermost_constant_expr): Add constexpr_dtor argument,
	handle evaluation of constexpr dtors and add tracking of heap
	variables.  Use tf_no_cleanup for get_target_expr_with_sfinae.
	(cxx_constant_value): Adjust cxx_eval_outermost_constant_expr caller.
	(cxx_constant_dtor): New function.
	(maybe_constant_value, fold_non_dependent_expr_template,
	maybe_constant_init_1): Adjust cxx_eval_outermost_constant_expr
	callers.
	(potential_constant_expression_1): Ignore clobbers.  Allow
	COND_EXPR_IS_VEC_DELETE for c++2a.
	* decl.c (initialize_predefined_identifiers): Add heap identifiers.
	(decl_maybe_constant_destruction): New function.
	(cp_finish_decl): Don't clear TREE_READONLY for constexpr variables
	with non-trivial, but constexpr destructors.
	(register_dtor_fn): For constexpr variables with constexpr non-trivial
	destructors call cxx_maybe_build_cleanup instead of adding destructor
	calls at runtime.
	(expand_static_init): For constexpr variables with constexpr
	non-trivial destructors call cxx_maybe_build_cleanup.
	(grokdeclarator): Allow constexpr destructors for c++2a.  Formatting
	fix.
	(cxx_maybe_build_cleanup): For constexpr variables with constexpr
	non-trivial destructors call cxx_constant_dtor instead of adding
	destructor calls at runtime.
	* init.c: Include stor-layout.h.
	(build_new_constexpr_heap_type, maybe_wrap_new_for_constexpr): New
	functions.
	(build_new_1): For c++2a and new[], add cast around the alloc call
	to help constexpr evaluation figure out the type of the heap storage.
	(build_vec_delete_1): Set DECL_INITIAL of tbase and emit a DECL_EXPR
	for it instead of initializing an uninitialized variable.
	* method.c: Include intl.h.
	(SFK_CTOR_P, SFK_DTOR_P, SFK_ASSIGN_P, SFK_COPY_P, SFK_MOVE_P): Move
	definitions earlier.
	(process_subob_fn): Add sfk argument, adjust non-constexpr call
	diagnostics based on it.
	(walk_field_subobs): Formatting fixes.  Adjust process_subob_fn caller.
	(synthesized_method_base_walk): Likewise.
	(synthesized_method_walk): Set *constexpr_p to true for dtors in c++2a.
	Fix up DR number in comment.
	(implicitly_declare_fn): Formatting fix.
	* typeck2.c (store_init_value): Don't call cp_fully_fold_init on
	initializers of automatic non-constexpr variables in constexpr
	functions.
testsuite/
	* g++.dg/cpp0x/constexpr-delete2.C: Adjust expected diagnostics for
	c++2a.
	* g++.dg/cpp0x/locations1.C: Only expect constexpr ~S() diagnostics
	in c++17_down, adjust expected wording.
	* g++.dg/cpp1y/constexpr-new.C: Only expect diagnostics in c++17_down.
	* g++.dg/cpp2a/constexpr-dtor1.C: New test.
	* g++.dg/cpp2a/constexpr-dtor2.C: New test.
	* g++.dg/cpp2a/constexpr-dtor3.C: New test.
	* g++.dg/cpp2a/constexpr-new1.C: New test.
	* g++.dg/cpp2a/constexpr-new2.C: New test.
	* g++.dg/cpp2a/constexpr-new3.C: New test.
	* g++.dg/cpp2a/constexpr-new4.C: New test.
	* g++.dg/cpp2a/feat-cxx2a.C: Add __cpp_constinit and
	__cpp_constexpr_dynamic_alloc tests.  Tweak __cpp_* tests for c++2a
	features to use style like older features, including #ifdef test.
	* g++.dg/ext/is_literal_type3.C: New test.

From-SVN: r276622
      Jakub Jelinek committed
    • re PR tree-optimization/91734 (gcc skip an if statement with "-O1 -ffast-math") · 0043b528 
      	PR tree-optimization/91734
	* generic-match-head.c: Include fold-const-call.h.
	* match.pd (sqrt(x) cmp c): Check the boundary value and
	in case inexact computation of c*c affects comparison of the boundary,
	turn LT_EXPR into LE_EXPR, GE_EXPR into GT_EXPR, LE_EXPR into LT_EXPR
	or GT_EXPR into GE_EXPR.  Punt for sqrt comparisons against NaN and
	for -frounding-math.  For c2, try the next smaller or larger floating
	point constant depending on comparison code and if it has the same
	sqrt as c2, use it instead of c2.

	* gcc.dg/pr91734.c: New test.

From-SVN: r276621
      Jakub Jelinek committed
    • Daily bump. · 30648d02 
      From-SVN: r276618
      GCC Administrator committed
  3. 04 Oct, 2019 34 commits