-2010-05-18 Nathan Froyd <froydnj@codesourcery.com>
-
- * gcc-interface/trans.c (call_to_gnu): Use build_call_vec instead of
- build_call_list.
- * gcc-interface/utils.c (build_function_stub): Likewise.
-
-2010-05-16 Manuel López-Ibáñez <manu@gcc.gnu.org>
-
- * gcc-interface/misc.c (gnat_handle_option): Remove special logic
- for Wuninitialized without -O.
-
-2010-05-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (enum standard_datatypes): Add new value
- ADT_exception_data_name_id.
- (exception_data_name_id): New define.
- * gcc-interface/trans.c (gigi): Initialize it.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <object>: Use the standard
- exception type for standard exception definitions. Do not make them
- volatile.
- <E_Record_Type>: Equate fields of types associated with an exception
- definition to those of the standard exception type.
-
-2010-05-13 Andreas Schwab <schwab@linux-m68k.org>
-
- * tracebak.c (__gnat_backtrace): Mark top_stack with ATTRIBUTE_UNUSED.
-
-2010-05-12 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Access_Type>: Tidy up
- code, improve comments and fix formatting nits.
-
-2010-05-12 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/utils.c (update_pointer_to): Return early if the old
- pointer already points to the new type. Chain the old pointer and its
- variants at the end of new pointer's chain after updating them.
-
-2010-05-10 Eric Botcazou <ebotcazou@adacore.com>
-
- * exp_disp.adb (Make_Tags): Mark the imported view of dispatch tables
- built for interfaces.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Use
- imported_p instead of Is_Imported when considering constants.
- Do not promote alignment of exported objects.
- <E_Record_Subtype>: Strip all suffixes for dispatch table entities.
-
-2010-05-08 Eric Botcazou <ebotcazou@adacore.com>
-
- * exp_disp.adb (Make_Tags): Mark the imported view of dispatch tables.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Make imported
- constants really constant.
- <E_Record_Subtype>: Strip the suffix for dispatch table entities.
-
-2010-05-08 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (make_aligning_type): Declare the type.
-
-2010-05-08 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (gnat_to_gnu_entity): Create variables for size
- expressions of variant part of record types declared at library level.
-
-2010-05-08 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (create_field_decl): Move PACKED parameter.
- * gcc-interface/utils.c (create_field_decl): Move PACKED parameter.
- (rest_of_record_type_compilation): Adjust call to create_field_decl.
- (make_descriptor_field): Likewise and pass correctly typed constants.
- (build_unc_object_type): Likewise.
- (unchecked_convert): Likewise.
- * gcc-interface/decl.c (elaborate_expression_2): New static function.
- (gnat_to_gnu_entity): Use it to make alignment factors explicit.
- Adjust call to create_field_decl.
- (make_aligning_type): Likewise.
- (make_packable_type): Likewise.
- (maybe_pad_type): Likewise.
- (gnat_to_gnu_field): Likewise.
- (components_to_record): Likewise.
- (create_field_decl_from): Likewise.
- (create_variant_part_from): Remove superfluous test.
- * gcc-interface/trans.c (gigi): Adjust call to create_field_decl.
-
-2010-05-08 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (build_unc_object_type): Add DEBUG_INFO_P param.
- (build_unc_object_type_from_ptr): Likewise.
- * gcc-interface/utils.c (build_unc_object_type): Add DEBUG_INFO_P param
- and pass it to create_type_decl. Declare the type. Simplify.
- (build_unc_object_type_from_ptr): Add DEBUG_INFO_P parameter and pass
- it to build_unc_object_type.
- * gcc-interface/decl.c (gnat_to_gnu_entity): Adjust to above change.
- * gcc-interface/trans.c (Attribute_to_gnu): Likewise.
- (gnat_to_gnu): Likewise.
- * gcc-interface/utils2.c (build_allocator): Likewise.
-
-2010-05-07 Eric Botcazou <ebotcazou@adacore.com>
-
- PR 40989
- * gcc-interface/misc.c (gnat_handle_option): Fix long line.
-
-2010-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
-
- * gcc-interface/Makefile.in: Removed mips-sgi-irix5* support.
-
-2010-05-06 Manuel López-Ibáñez <manu@gcc.gnu.org>
-
- PR 40989
- * gcc-interface/misc.c (gnat_handle_option): Add argument kind.
-
-2010-05-02 Giuseppe Scrivano <gscrivano@gnu.org>
-
- * gnathtml.pl: Use 755 as mask for new directories.
-
-2010-04-28 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (gnat_gimplify_expr) <ADDR_EXPR>: Uniquize
- constant constructors before taking their address.
-
-2010-04-25 Eric Botcazou <ebotcazou@adacore.com>
-
- * exp_dbug.ads: Fix outdated description. Mention link between XVS
- and XVZ objects.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Subtype>: Set
- XVZ variable as unit size of XVS type.
- (maybe_pad_type): Likewise.
-
-2010-04-25 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (gnat_to_gnu) <N_Assignment_Statement>: Do not
- use memmove if the array type is bit-packed.
-
-2010-04-18 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/misc.c (gnat_init): Remove second argument in call to
- build_common_tree_nodes.
-
-2010-04-18 Ozkan Sezer <sezeroz@gmail.com>
-
- * gsocket.h: Make sure that winsock2.h is included before windows.h.
-
-2010-04-17 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/utils2.c (build_unary_op) <ATTR_ADDR_EXPR>: Do not
- issue warning.
-
-2010-04-17 Eric Botcazou <ebotcazou@adacore.com>
-
- * uintp.h (UI_Lt): Declare.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Type>: Do the size
- computation in sizetype.
- <E_Array_Subtype>: Use unified handling for all index types. Do not
- generate MAX_EXPR-based expressions, only COND_EXPR-based ones. Add
- bypass for PATs.
- (annotate_value): Change test for negative values.
- (validate_size): Apply test for negative values on GNAT nodes.
- (set_rm_size): Likewise.
- * gcc-interface/misc.c (gnat_init): Set unsigned types for sizetypes.
- * gcc-interface/utils.c (rest_of_record_type_compilation): Change test
- for negative values.
- (max_size) <MINUS_EXPR>: Do not reassociate a COND_EXPR on the LHS.
- (builtin_type_for_size): Adjust definition of signed_size_type_node.
- * gcc-interface/utils2.c (compare_arrays): Optimize comparison of
- lengths against zero.
-
-2010-04-17 Eric Botcazou <ebotcazou@adacore.com>
-
- * back-end.adb (Call_Back_End): Pass Standard_Character to gigi.
- * gcc-interface/gigi.h (gigi): Add standard_character parameter.
- (CHAR_TYPE_SIZE, SHORT_TYPE_SIZE, INT_TYPE_SIZE, LONG_TYPE_SIZE,
- LONG_LONG_TYPE_SIZE, FLOAT_TYPE_SIZE, DOUBLE_TYPE_SIZE,
- LONG_DOUBLE_TYPE_SIZE, SIZE_TYPE): Delete.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Subtype>: Call
- rm_size.
- * gcc-interface/misc.c (gnat_init): Set signedness of char as per
- flag_signed_char. Tag sizetype with "size_type" moniker.
- * gcc-interface/trans.c (gigi): Add standard_character parameter.
- Remove useless built-in types. Equate unsigned_char_type_node to
- Standard.Character. Use it instead of char_type_node throughout.
- (Attribute_to_gnu): Likewise.
- (gnat_to_gnu): Likewise.
- * gcc-interface/utils2.c (build_call_raise): Likewise.
-
-2010-04-17 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (enum standard_datatypes): Add new values
- ADT_sbitsize_one_node and ADT_sbitsize_unit_node.
- (sbitsize_one_node): New macro.
- (sbitsize_unit_node): Likewise.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Array_Subtype>: Fix
- latent bug in the computation of subrange_p. Fold wider_p predicate.
- (cannot_be_superflat_p): Use an explicitly signed 64-bit type to do
- the final comparison.
- (make_aligning_type): Build real negation and use sizetype throughout
- the offset computation.
- (maybe_pad_type): Do not issue the warning when the new size expression
- is too complex.
- (annotate_value) <INTEGER_CST>: Simplify code handling negative values.
- * gcc-interface/misc.c (gnat_init): Initialize sbitsize_one_node and
- sbitsize_unit_node.
- * gcc-interface/trans.c (Attribute_to_gnu) <Attr_Pool_Address>: Fold
- double negation.
- (gnat_to_gnu) <N_Free_Statement>: Likewise.
- * gcc-interface/utils.c (convert): Use sbitsize_unit_node.
- * gcc-interface/utils2.c (compare_arrays): Compute real lengths and use
- constants in sizetype. Remove dead code and tweak comments. Generate
- equality instead of inequality comparisons for zero length tests.
-
-2010-04-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (gnat_init_decl_processing): Delete.
- * gcc-interface/decl.c (gnat_to_gnu_entity): Constify a few variables.
- <object>: Do not create the fake PARM_DECL if no debug info is needed.
- Do not create the corresponding VAR_DECL of a CONST_DECL for debugging
- purposes if no debug info is needed.
- Fix formatting. Reorder and add comments.
- * gcc-interface/trans.c (gnat_to_gnu) <N_Attribute_Reference>: Constify
- variable and remove obsolete comment.
- * gcc-interface/utils.c (convert_vms_descriptor64): Tweak comment.
- (convert_vms_descriptor32): Likewise.
- (convert): Remove dead code.
- <UNCONSTRAINED_ARRAY_REF>: Pass the field instead of its name to build
- the reference to the P_ARRAY pointer.
- <POINTER_TYPE>: Likewise.
- (maybe_unconstrained_array) <UNCONSTRAINED_ARRAY_TYPE>: Likewise.
- (gnat_init_decl_processing): Delete, move contents to...
- * gcc-interface/misc.c (gnat_init): ...here.
-
-2010-04-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (unchecked_conversion_nop): Handle function
- calls. Return true for conversion from a record subtype to its type.
-
-2010-04-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (gnat_to_gnu_entity): Use boolean_type_node in
- lieu of integer_type_node for boolean operations.
- (choices_to_gnu): Likewise.
- * gcc-interface/trans.c (Attribute_to_gnu): Likewise.
- (Loop_Statement_to_gnu): Likewise.
- (establish_gnat_vms_condition_handler): Likewise.
- (Exception_Handler_to_gnu_sjlj): Likewise.
- (gnat_to_gnu): Likewise.
- (build_unary_op_trapv): Likewise.
- (build_binary_op_trapv): Likewise.
- (emit_range_check): Likewise.
- (emit_index_check): Likewise.
- (convert_with_check): Likewise.
- * gcc-interface/utils.c (convert_vms_descriptor64): Likewise.
- (convert_vms_descriptor32): Likewise.
- (convert_vms_descriptor): Likewise.
- * gcc-interface/utils2.c (nonbinary_modular_operation): Likewise.
- (compare_arrays): Use boolean instead of integer constants.
- (build_binary_op) <TRUTH_ANDIF_EXPR, TRUTH_ORIF_EXPR, TRUTH_AND_EXPR,
- TRUTH_OR_EXPR, TRUTH_XOR_EXPR>: New case. Check that the result type
- is a boolean type.
- <GE_EXPR, LE_EXPR, GT_EXPR, LT_EXPR>: Remove obsolete assertion.
- <EQ_EXPR, NE_EXPR>: Check that the result type is a boolean type.
- <PREINC/PREDECREMENT_EXPR, POSTINC/POSTDECREMENT_EXPR>: Delete.
- <TRUTH_NOT_EXPR>: Check that the result type is a boolean type.
- (build_unary_op): Use boolean_type_node in lieu of integer_type_node
- for boolean operations.
- (fill_vms_descriptor): Likewise. Fix formatting nits.
-
-2010-04-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/ada-tree.def (LOOP_STMT): Change to 4-operand nodes.
- * gcc-interface/ada-tree.h (LOOP_STMT_TOP_COND, LOOP_STMT_BOT_COND):
- Merge into...
- (LOOP_STMT_COND): ...this.
- (LOOP_STMT_BOTTOM_COND_P): New flag.
- (LOOP_STMT_TOP_UPDATE_P): Likewise.
- * gcc-interface/trans.c (can_equal_min_or_max_val_p): New function.
- (can_equal_min_val_p): New static inline function.
- (can_equal_max_val_p): Likewise.
- (Loop_Statement_to_gnu): Use build4 in lieu of build5 and adjust to
- new LOOP_STMT semantics. Use two different strategies depending on
- whether optimization is enabled to translate the loop.
- (gnat_gimplify_stmt) <LOOP_STMT>: Adjust to new LOOP_STMT semantics.
-
-2010-04-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * uintp.adb (UI_From_Dint): Remove useless code.
- (UI_From_Int): Likewise.
- * uintp.h: Reorder declarations.
- (UI_From_gnu): Declare.
- (UI_Base): Likewise.
- (Vector_Template): Likewise.
- (Vector_To_Uint): Likewise.
- (Uint_0): Remove.
- (Uint_1): Likewise.
- * gcc-interface/gigi.h: Tweak comments.
- * gcc-interface/cuintp.c (UI_From_gnu): New global function.
- * gcc-interface/decl.c (maybe_pad_type): Do not warn if either size
- overflows.
- (annotate_value) <INTEGER_CST>: Call UI_From_gnu.
- * gcc-interface/trans.c (post_error_ne_num): Call post_error_ne.
- (post_error_ne_tree): Call UI_From_gnu and post_error_ne.
- * gcc-interface/utils.c (max_size) <tcc_binary>: Do not special-case
- TYPE_MAX_VALUE.
-
-2010-04-16 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (make_type_from_size) <INTEGER_TYPE>: Just copy
- TYPE_NAME.
- * gcc-interface/trans.c (smaller_packable_type_p): Rename into...
- (smaller_form_type_p): ...this. Change parameter and variable names.
- (call_to_gnu): Use the nominal type of the parameter to create the
- temporary if it's a smaller form of the actual type.
- (addressable_p): Return false if the actual type is integral and its
- size is greater than that of the expected type.
-
-2010-04-15 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/cuintp.c (UI_To_gnu): Fix long line.
- * gcc-interface/gigi.h (MARK_VISITED): Skip objects of constant class.
- (process_attributes): Delete.
- (post_error_ne_num): Change parameter name.
- * gcc-interface/decl.c (gnat_to_gnu_entity): Do not force debug info
- with -g3. Remove a couple of obsolete lines. Minor tweaks.
- If type annotating mode, operate on trees to compute the adjustment to
- the sizes of tagged types. Fix long line.
- (cannot_be_superflat_p): Tweak head comment.
- (annotate_value): Fold local constant.
- (set_rm_size): Fix long line.
- * gcc-interface/trans.c (Identifier_to_gnu): Rework comments.
- (Attribute_to_gnu): Fix long line.
- <Attr_Size>: Remove useless assertion.
- Reorder statements. Use size_binop routine.
- (Loop_Statement_to_gnu): Use build5 in lieu of build_nt.
- Create local variables for the label and the test. Tweak comments.
- (Subprogram_Body_to_gnu): Reset cfun to NULL.
- (Compilation_Unit_to_gnu): Use the Sloc of the Unit node.
- (process_inlined_subprograms): Integrate into...
- (Compilation_Unit_to_gnu): ...this.
- (gnat_to_gnu): Fix long line.
- (post_error_ne_num): Change parameter name.
- * gcc-interface/utils.c (process_attributes): Static-ify.
- <ATTR_MACHINE_ATTRIBUTE>: Set input_location before proceeding.
- (create_type_decl): Add comment.
- (create_var_decl_1): Process the attributes after adding the VAR_DECL
- to the current binding level.
- (create_subprog_decl): Likewise for the FUNCTION_DECL.
- (end_subprog_body): Do not reset cfun to NULL.
- (build_vms_descriptor32): Fix long line.
- (build_vms_descriptor): Likewise.
- (handle_nonnull_attribute): Likewise.
- (convert_vms_descriptor64): Likewise.
- * gcc-interface/utils2.c (fill_vms_descriptor): Fix long line.
- (gnat_protect_expr): Fix thinko.
-
-2010-04-15 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (gigi): Set DECL_IGNORED_P on EH functions.
- (gnat_to_gnu) <N_Op_Eq>: Restore the value of input_location
- before translating the top-level node.
- (lvalue_required_p) <N_Function_Call>: Return 1 if !constant.
- <N_Object_Declaration>: Likewise.
- <N_Assignment_Statement>: Likewise.
- <N_Unchecked_Type_Conversion>: Likewise.
- (call_to_gnu): Remove kludge.
- (gnat_to_gnu) <N_Return_Statement>: When not optimizing, force labels
- associated with user returns to be preserved.
- (gnat_to_gnu): Add special code to deal with boolean rvalues.
- * gcc-interface/utils2.c (compare_arrays): Set input_location on all
- comparisons.
- (build_unary_op) <ADDR_EXPR>: Call build_fold_addr_expr.
- <INDIRECT_REF>: Call build_fold_indirect_ref.
-
-2010-04-15 Joel Sherrill <joel.sherrill@oarcorp.com>
-
- * g-socket.adb: A target can have multiple missing errno's. This
- will result in multiple errno's being defined as -1. Because of this
- we can not use a case but must use a series of if's to avoid
- a duplicate case error in GNAT.Sockets.Resolve_Error.
-
-2010-04-15 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (call_to_gnu): Open a nesting level if this is
- a statement. Otherwise, if at top-level, push the processing of the
- elaboration routine. In the misaligned case, issue the error messages
- again on entry and create the temporary explicitly. Do not issue them
- for CONSTRUCTORs.
- For a function call, emit the range check if necessary.
- In the copy-in copy-out case, create the temporary for the return
- value explicitly.
- Do not unnecessarily convert by-ref parameters to the formal's type.
- Remove obsolete guards in conditions.
- (gnat_to_gnu) <N_Assignment_Statement>: For a function call, pass the
- target to call_to_gnu in all cases.
- (gnat_gimplify_expr) <ADDR_EXPR>: Remove handling of SAVE_EXPR.
- (addressable_p) <CONSTRUCTOR>: Return false if not static.
- <COMPOUND_EXPR>: New case.
- * gcc-interface/utils2.c (build_unary_op) <ADDR_EXPR>: Fold a compound
- expression if it has unconstrained array type.
- (gnat_mark_addressable) <COMPOUND_EXPR>: New case.
- (gnat_stabilize_reference) <COMPOUND_EXPR>: Stabilize operands on an
- individual basis.
-
-2010-04-15 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (gigi): Do not start statement group.
- (Compilation_Unit_to_gnu): Set current_function_decl to NULL.
- Start statement group and push binding level here...
- (gnat_to_gnu) <N_Compilation_Unit>: ...and not here.
- Do not push fake contexts at top level. Remove redundant code.
- (call_to_gnu): Rename a local variable and constify another.
- * gcc-interface/utils.c (gnat_pushlevel): Fix formatting nits.
- (set_current_block_context): Set it as the group's block.
- (gnat_init_decl_processing): Delete unrelated init code.
- (end_subprog_body): Use NULL_TREE.
-
-2010-04-15 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (call_to_gnu): Do not unnecessarily force
- side-effects of actual parameters before the call.
-
-2010-04-15 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (validate_size): Reorder, remove obsolete test
- and warning.
- (set_rm_size): Reorder and remove obsolete test.
-
-2010-04-14 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h: Reorder declarations and tweak comments.
- (gigi): Adjust ATTRIBUTE_UNUSED markers.
- * gcc-interface/gadaint.h: New file.
- * gcc-interface/trans.c: Include it in lieu of adaint.h. Reorder.
- (__gnat_to_canonical_file_spec): Remove declaration.
- (number_names): Delete.
- (number_files): Likewise.
- (gigi): Adjust.
- * gcc-interface/Make-lang.in (ada/trans.o): Adjust dependencies to
- above change.
-
-2010-04-14 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Class_Wide_Type>: Fix
- comment.
- * gcc-interface/trans.c (process_freeze_entity): Use local copy of
- Ekind. Return early for class-wide types. Do not compute initializer
- unless necessary. Reuse the tree for an associated class-wide type
- only if processing its root type.
-
-2010-04-13 Joel Sherrill <joel.sherrill@oarcorp.com>
-
- * gsocket.h: Run-time can no longer be built without network
- OS headers available. Changing RTEMS GNAT build procedure to
- reflect this and letting run-time build use network .h files.
-
-2010-04-13 Duncan Sands <baldrick@free.fr>
-
- * gcc-interface/misc.c (gnat_eh_type_covers): Remove.
- * gcc-interface/trans.c (Exception_Handler_to_gnu_zcx): Update comment.
-
-2010-04-13 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (standard_datatypes): Add ADT_parent_name_id.
- (parent_name_id): New macro.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Type>: Use it.
- * gcc-interface/trans.c (gigi): Initialize it.
- (lvalue_required_p) <N_Type_Conversion>: New case.
- <N_Qualified_Expression>: Likewise.
- <N_Allocator>: Likewise.
- * gcc-interface/utils.c (convert): Try to properly upcast tagged types.
-
-2010-04-13 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/ada-tree.h (TYPE_BY_REFERENCE_P): Delete.
- (DECL_CONST_ADDRESS_P): New macro.
- (SET_DECL_ORIGINAL_FIELD_TO_FIELD): Likewise.
- (SAME_FIELD_P): Likewise.
- * gcc-interface/decl.c (constructor_address_p): New static function.
- (gnat_to_gnu_entity) <object>: Set DECL_CONST_ADDRESS_P according to
- the return value of above function.
- (gnat_to_gnu_entity) <E_Record_Type>: Force BLKmode for all types
- passed by reference.
- <E_Record_Subtype>: Likewise.
- Set TREE_ADDRESSABLE on the type if it passed by reference.
- (make_packable_type): Use SET_DECL_ORIGINAL_FIELD_TO_FIELD.
- (create_field_decl_from): Likewise.
- (substitute_in_type): Likewise.
- (purpose_member_field): Use SAME_FIELD_P.
- * gcc-interface/misc.c (must_pass_by_ref): Test TREE_ADDRESSABLE.
- * gcc-interface/trans.c (lvalue_required_p): Add ADDRESS_OF_CONSTANT
- parameter and adjust recursive calls.
- <N_Explicit_Dereference>: New case.
- <N_Object_Declaration>: Return 1 if the object is of a class-wide type.
- Adjust calls to lvalue_required_p. Do not return the initializer of a
- DECL_CONST_ADDRESS_P constant if an lvalue is required for it.
- (call_to_gnu): Delay issuing error message for a misaligned actual and
- avoid the associated back-end assertion. Test TREE_ADDRESSABLE.
- (gnat_gimplify_expr) <ADDR_EXPR>: Handle non-static constructors.
- * gcc-interface/utils.c (make_dummy_type): Set TREE_ADDRESSABLE if the
- type is passed by reference.
- (convert) <CONSTRUCTOR>: Convert in-place in more cases.
- * gcc-interface/utils2.c (build_cond_expr): Drop TYPE_BY_REFERENCE_P.
- (build_simple_component_ref): Use SAME_FIELD_P.
-
-2010-04-12 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (Identifier_to_gnu): Use boolean variable.
- (call_to_gnu): Test gigi's flag TYPE_BY_REFERENCE_P instead of calling
- front-end's predicate Is_By_Reference_Type. Use consistent order and
- remove ??? comment. Use original conversion in all cases, if any.
- * gcc-interface/utils.c (make_dummy_type): Minor tweak.
- (convert): Use local copy in more cases.
- <INDIRECT_REF>: Remove deactivated code.
- (unchecked_convert): Use a couple of local copies.
-
-2010-04-11 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (lvalue_required_for_attribute_p): New static
- function.
- (lvalue_required_p) <N_Attribute_Reference>: Call it.
- (gnat_to_gnu) <N_Selected_Component>: Prevent build_component_ref from
- folding the result only if lvalue_required_for_attribute_p is true.
- * gcc-interface/utils.c (maybe_unconstrained_array): Pass correctly
- typed constant to build_component_ref.
- (unchecked_convert): Likewise.
- * gcc-interface/utils2.c (maybe_wrap_malloc): Likewise.
- (build_allocator): Likewise.
-
-2010-04-11 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/utils2.c (build_cond_expr): Take the address and
- dereference if the result type is passed by reference.
-
-2010-04-11 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/trans.c (Case_Statement_to_gnu): Bool-ify variable.
- (gnat_to_gnu) <N_Null_Statement>: When not optimizing, generate a
- goto to the next statement.
-
-2010-04-09 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (maybe_variable): Delete.
- (protect_multiple_eval): Likewise.
- (maybe_stabilize_reference): Likewise.
- (gnat_save_expr): Declare.
- (gnat_protect_expr): Likewise.
- (gnat_stabilize_reference): Likewise.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <object>: Use
- gnat_stabilize_reference.
- (maybe_variable): Delete.
- (elaborate_expression_1): Use gnat_save_expr.
- * gcc-interface/trans.c (Attribute_to_gnu): Use gnat_protect_expr.
- (call_to_gnu): Pass NULL to gnat_stabilize_reference.
- (gnat_to_gnu) <N_Object_Declaration>: Use gnat_save_expr.
- <N_Slice>: Use gnat_protect_exp.
- <N_Selected_Component>: Pass NULL to gnat_stabilize_reference.
- <N_In>: Use gnat_protect_expr.
- Pass NULL to gnat_stabilize_reference.
- (build_unary_op_trapv): Use gnat_protect_expr.
- (build_binary_op_trapv): Likewise.
- (emit_range_check): Likewise.
- (emit_index_check): Likewise.
- (convert_with_check): Likewise.
- (protect_multiple_eval): Move to utils2.c file.
- (maybe_stabilize_reference): Merge into...
- (gnat_stabilize_reference): ...this. Move to utils2.c file.
- (gnat_stabilize_reference_1): Likewise.
- * gcc-interface/utils.c (convert_to_fat_pointer): Use gnat_protect_expr
- instead of protect_multiple_eval.
- * gcc-interface/utils2.c (compare_arrays): Likewise.
- (nonbinary_modular_operation): Likewise.
- (maybe_wrap_malloc): Likewise.
- (build_allocator): Likewise.
- (gnat_save_expr): New function.
- (gnat_protect_expr): Rename from protect_multiple_eval. Early return
- in common cases. Propagate TREE_READONLY onto dereferences.
- (gnat_stabilize_reference_1): Move from trans.c file.
- (gnat_stabilize_reference): Likewise.
-
-2010-04-09 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/gigi.h (gnat_mark_addressable): Rename parameter.
- * gcc-interface/decl.c (maybe_variable): Do not set TREE_STATIC on _REF
- node. Use the type of the operand to set TREE_READONLY.
- * gcc-interface/trans.c (Identifier_to_gnu): Do not set TREE_STATIC on
- _REF node. Do not overwrite TREE_READONLY.
- (call_to_gnu): Rename local variable and fix various nits. In the
- copy-in/copy-out case, build the SAVE_EXPR manually.
- (convert_with_check): Call protect_multiple_eval in lieu of save_expr
- and fold the computations.
- (protect_multiple_eval): Always save entire fat pointers.
- (maybe_stabilize_reference): Minor tweaks.
- (gnat_stabilize_reference_1): Likewise. Do not deal with tcc_constant,
- tcc_type and tcc_statement.
- * gcc-interface/utils.c (convert_to_fat_pointer): Call
- protect_multiple_eval in lieu of save_expr.
- (convert): Minor tweaks.
- (maybe_unconstrained_array): Do not set TREE_STATIC on _REF node.
- (builtin_type_for_size): Call gnat_type_for_size directly.
- * gcc-interface/utils2.c (contains_save_expr_p): Delete.
- (contains_null_expr): Likewise
- (gnat_build_constructor): Do not call it.
- (compare_arrays): Deal with all side-effects, use protect_multiple_eval
- instead of gnat_stabilize_reference to protect the operands.
- (nonbinary_modular_operation): Call protect_multiple_eval in lieu of
- save_expr.
- (maybe_wrap_malloc): Likewise.
- (build_allocator): Likewise.
- (build_unary_op) <INDIRECT_REF>: Do not set TREE_STATIC on _REF node.
- (gnat_mark_addressable): Rename parameter.
-
-2010-04-08 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/ada-tree.h (TYPE_RETURNS_UNCONSTRAINED_P): Rename into.
- (TYPE_RETURN_UNCONSTRAINED_P): ...this.
- (TYPE_RETURNS_BY_REF_P): Rename into.
- (TYPE_RETURN_BY_DIRECT_REF_P): ...this.
- (TYPE_RETURNS_BY_TARGET_PTR_P): Delete.
- * gcc-interface/gigi.h (create_subprog_type): Adjust parameter names.
- (build_return_expr): Likewise.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Subprogram_Type>:
- Rename local variables. If the return Mechanism is By_Reference, pass
- return_by_invisible_ref_p to create_subprog_type instead of toggling
- TREE_ADDRESSABLE. Test return_by_invisible_ref_p in order to annotate
- the mechanism. Use regular return for contrained types with non-static
- size and return by invisible reference for unconstrained return types
- with default discriminants. Update comment.
- * gcc-interface/trans.c (Subprogram_Body_to_gnu): If the function
- returns by invisible reference, turn the RESULT_DECL into a pointer.
- Do not handle DECL_BY_REF_P in the CICO case here.
- (call_to_gnu): Remove code handling return by target pointer. For a
- function call, if the return type has non-constant size, generate the
- assignment with an INIT_EXPR.
- (gnat_to_gnu) <N_Return_Statement>: Remove dead code in the CICO case.
- If the function returns by invisible reference, build the copy return
- operation manually.
- (add_decl_expr): Initialize the variable with an INIT_EXPR.
- * gcc-interface/utils.c (create_subprog_type): Adjust parameter names.
- Adjust for renaming of macros. Copy the node only when necessary.
- (create_subprog_decl): Do not toggle TREE_ADDRESSABLE on the return
- type, only change DECL_BY_REFERENCE on the RETURN_DECL.
- (convert_from_reference): Delete.
- (is_byref_result): Likewise.
- (gnat_genericize_r): Likewise.
- (gnat_genericize): Likewise.
- (end_subprog_body): Do not call gnat_genericize.
- * gcc-interface/utils2.c (build_binary_op) <INIT_EXPR>: New case.
- (build_return_expr): Adjust parameter names, logic and comment.
-
-2010-04-07 Eric Botcazou <ebotcazou@adacore.com>
-
- * exp_pakd.adb (Create_Packed_Array_Type): Always use a modular type
- if the size is small enough. Propagate the alignment if there is an
- alignment clause on the original array type.
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Modular_Integer_Subtype>
- Deal with under-aligned packed array types. Copy the size onto the
- justified modular type and don't lay it out again. Likewise for the
- padding type built for other under-aligned subtypes.
- * gcc-interface/utils.c (finish_record_type): Do not set a default mode
- on the type.
-
-2010-04-07 Eric Botcazou <ebotcazou@adacore.com>
-
- * gcc-interface/decl.c (gnat_to_gnu_entity) <E_Procedure>: Set default
- alignment on the RETURN type built for the Copy-In Copy-Out mechanism.
-
2010-04-07 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/trans.c (call_to_gnu): In the return-by-target-ptr case
if (Nkind (gnat_node) == N_Function_Call && !gnu_target)
{
- *gnu_result_type_p = TREE_TYPE (gnu_subprog_type);
- return build1 (NULL_EXPR, TREE_TYPE (gnu_subprog_type), call_expr);
+ tree gnu_obj_type;
+
+ if (CONTAINS_PLACEHOLDER_P (TYPE_SIZE (gnu_ret_type)))
+ gnu_obj_type
+ = maybe_pad_type (gnu_ret_type,
+ max_size (TYPE_SIZE (gnu_ret_type), true),
+ 0, Etype (Name (gnat_node)), false, false,
+ false, true);
+ else
+ gnu_obj_type = gnu_ret_type;
+
+ /* ??? We may be about to create a static temporary if we happen to
+ be at the global binding level. That's a regression from what
+ the 3.x back-end would generate in the same situation, but we
+ don't have a mechanism in Gigi for creating automatic variables
+ in the elaboration routines. */
+ gnu_target
+ = create_var_decl (create_tmp_var_name ("LR"), NULL, gnu_obj_type,
+ NULL, false, false, false, false, NULL,
+ gnat_node);
+
+ *gnu_result_type_p = gnu_ret_type;
}
return call_expr;
VEC_safe_push (tree, gc, gnu_actual_vec, gnu_actual);
}
- gnu_call = build_call_vec (TREE_TYPE (gnu_subprog_type), gnu_subprog_addr,
- gnu_actual_vec);
- set_expr_location_from_node (gnu_call, gnat_node);
+ gnu_subprog_call = build_call_list (TREE_TYPE (gnu_subprog_type),
+ gnu_subprog_addr,
+ nreverse (gnu_actual_list));
+ set_expr_location_from_node (gnu_subprog_call, gnat_node);
+
+ /* If we return by passing a target, the result is the target after the
+ call. We must not emit the call directly here because this might be
+ evaluated as part of an expression with conditions to control whether
+ the call should be emitted or not. */
+ if (TYPE_RETURNS_BY_TARGET_PTR_P (gnu_subprog_type))
+ {
+ /* Conceptually, what we need is a COMPOUND_EXPR of the call followed by
+ the target object. Doing so would potentially be inefficient though,
+ as this expression might be wrapped up into a SAVE_EXPR later, which
+ would incur a pointless temporary copy of the whole object.
+
+ What we do instead is build a COMPOUND_EXPR returning the address of
+ the target, and then dereference. Wrapping up the COMPOUND_EXPR into
+ a SAVE_EXPR then only incurs a mere pointer copy. */
+ tree gnu_target_addr = build_unary_op (ADDR_EXPR, NULL_TREE, gnu_target);
+ set_expr_location_from_node (gnu_target_addr, gnat_node);
+ gnu_result = build2 (COMPOUND_EXPR, TREE_TYPE (gnu_target_addr),
+ gnu_subprog_call, gnu_target_addr);
+ return build_unary_op (INDIRECT_REF, NULL_TREE, gnu_result);
+ }
- /* If it's a function call, the result is the call expression unless a target
- is specified, in which case we copy the result into the target and return
- the assignment statement. */
- if (Nkind (gnat_node) == N_Function_Call)
+ /* If it is a function call, the result is the call expression unless
+ a target is specified, in which case we copy the result into the target
+ and return the assignment statement. */
+ else if (Nkind (gnat_node) == N_Function_Call)
{
tree gnu_result = gnu_call;
return exp;
}
\f
+/* Protect EXP from multiple evaluation. This may make a SAVE_EXPR. */
+
+tree
+protect_multiple_eval (tree exp)
+{
+ tree type = TREE_TYPE (exp);
+
+ /* If EXP has no side effects, we theoritically don't need to do anything.
+ However, we may be recursively passed more and more complex expressions
+ involving checks which will be reused multiple times and eventually be
+ unshared for gimplification; in order to avoid a complexity explosion
+ at that point, we protect any expressions more complex than a simple
+ arithmetic expression. */
+ if (!TREE_SIDE_EFFECTS (exp)
+ && (CONSTANT_CLASS_P (exp)
+ || !EXPRESSION_CLASS_P (skip_simple_arithmetic (exp))))
+ return exp;
+
+ /* If this is a conversion, protect what's inside the conversion.
+ Similarly, if we're indirectly referencing something, we only
+ need to protect the address since the data itself can't change
+ in these situations. */
+ if (TREE_CODE (exp) == NON_LVALUE_EXPR
+ || CONVERT_EXPR_P (exp)
+ || TREE_CODE (exp) == VIEW_CONVERT_EXPR
+ || TREE_CODE (exp) == INDIRECT_REF
+ || TREE_CODE (exp) == UNCONSTRAINED_ARRAY_REF)
+ return build1 (TREE_CODE (exp), type,
+ protect_multiple_eval (TREE_OPERAND (exp, 0)));
+
+ /* If this is a fat pointer or something that can be placed in a register,
+ just make a SAVE_EXPR. Likewise for a CALL_EXPR as large objects are
+ returned via invisible reference in most ABIs so the temporary will
+ directly be filled by the callee. */
+ if (TYPE_IS_FAT_POINTER_P (type)
+ || TYPE_MODE (type) != BLKmode
+ || TREE_CODE (exp) == CALL_EXPR)
+ return save_expr (exp);
+
+ /* Otherwise reference, protect the address and dereference. */
+ return
+ build_unary_op (INDIRECT_REF, type,
+ save_expr (build_unary_op (ADDR_EXPR,
+ build_reference_type (type),
+ exp)));
+}
+\f
+/* This is equivalent to stabilize_reference in tree.c, but we know how to
+ handle our own nodes and we take extra arguments. FORCE says whether to
+ force evaluation of everything. We set SUCCESS to true unless we walk
+ through something we don't know how to stabilize. */
+
+tree
+maybe_stabilize_reference (tree ref, bool force, bool *success)
+{
+ tree type = TREE_TYPE (ref);
+ enum tree_code code = TREE_CODE (ref);
+ tree result;
+
+ /* Assume we'll success unless proven otherwise. */
+ *success = true;
+
+ switch (code)
+ {
+ case CONST_DECL:
+ case VAR_DECL:
+ case PARM_DECL:
+ case RESULT_DECL:
+ /* No action is needed in this case. */
+ return ref;
+
+ case ADDR_EXPR:
+ CASE_CONVERT:
+ case FLOAT_EXPR:
+ case FIX_TRUNC_EXPR:
+ case VIEW_CONVERT_EXPR:
+ result
+ = build1 (code, type,
+ maybe_stabilize_reference (TREE_OPERAND (ref, 0), force,
+ success));
+ break;
+
+ case INDIRECT_REF:
+ case UNCONSTRAINED_ARRAY_REF:
+ result = build1 (code, type,
+ gnat_stabilize_reference_1 (TREE_OPERAND (ref, 0),
+ force));
+ break;
+
+ case COMPONENT_REF:
+ result = build3 (COMPONENT_REF, type,
+ maybe_stabilize_reference (TREE_OPERAND (ref, 0), force,
+ success),
+ TREE_OPERAND (ref, 1), NULL_TREE);
+ break;
+
+ case BIT_FIELD_REF:
+ result = build3 (BIT_FIELD_REF, type,
+ maybe_stabilize_reference (TREE_OPERAND (ref, 0), force,
+ success),
+ gnat_stabilize_reference_1 (TREE_OPERAND (ref, 1),
+ force),
+ gnat_stabilize_reference_1 (TREE_OPERAND (ref, 2),
+ force));
+ break;
+
+ case ARRAY_REF:
+ case ARRAY_RANGE_REF:
+ result = build4 (code, type,
+ maybe_stabilize_reference (TREE_OPERAND (ref, 0), force,
+ success),
+ gnat_stabilize_reference_1 (TREE_OPERAND (ref, 1),
+ force),
+ NULL_TREE, NULL_TREE);
+ break;
+
+ case CALL_EXPR:
+ case COMPOUND_EXPR:
+ result = gnat_stabilize_reference_1 (ref, force);
+ break;
+
+ case CONSTRUCTOR:
+ /* Constructors with 1 element are used extensively to formally
+ convert objects to special wrapping types. */
+ if (TREE_CODE (type) == RECORD_TYPE
+ && VEC_length (constructor_elt, CONSTRUCTOR_ELTS (ref)) == 1)
+ {
+ tree index
+ = VEC_index (constructor_elt, CONSTRUCTOR_ELTS (ref), 0)->index;
+ tree value
+ = VEC_index (constructor_elt, CONSTRUCTOR_ELTS (ref), 0)->value;
+ result
+ = build_constructor_single (type, index,
+ gnat_stabilize_reference_1 (value,
+ force));
+ }
+ else
+ {
+ *success = false;
+ return ref;
+ }
+ break;
+
+ case ERROR_MARK:
+ ref = error_mark_node;
+
+ /* ... fall through to failure ... */
+
+ /* If arg isn't a kind of lvalue we recognize, make no change.
+ Caller should recognize the error for an invalid lvalue. */
+ default:
+ *success = false;
+ return ref;
+ }
+
+ TREE_READONLY (result) = TREE_READONLY (ref);
+
+ /* TREE_THIS_VOLATILE and TREE_SIDE_EFFECTS attached to the initial
+ expression may not be sustained across some paths, such as the way via
+ build1 for INDIRECT_REF. We re-populate those flags here for the general
+ case, which is consistent with the GCC version of this routine.
+
+ Special care should be taken regarding TREE_SIDE_EFFECTS, because some
+ paths introduce side effects where there was none initially (e.g. calls
+ to save_expr), and we also want to keep track of that. */
+
+ TREE_THIS_VOLATILE (result) = TREE_THIS_VOLATILE (ref);
+ TREE_SIDE_EFFECTS (result) |= TREE_SIDE_EFFECTS (ref);
+
+ return result;
+}
+
+/* Wrapper around maybe_stabilize_reference, for common uses without
+ lvalue restrictions and without need to examine the success
+ indication. */
+
+static tree
+gnat_stabilize_reference (tree ref, bool force)
+{
+ bool dummy;
+ return maybe_stabilize_reference (ref, force, &dummy);
+}
+
+/* Similar to stabilize_reference_1 in tree.c, but supports an extra
+ arg to force a SAVE_EXPR for everything. */
+
+static tree
+gnat_stabilize_reference_1 (tree e, bool force)
+{
+ enum tree_code code = TREE_CODE (e);
+ tree type = TREE_TYPE (e);
+ tree result;
+
+ /* We cannot ignore const expressions because it might be a reference
+ to a const array but whose index contains side-effects. But we can
+ ignore things that are actual constant or that already have been
+ handled by this function. */
+
+ if (TREE_CONSTANT (e) || code == SAVE_EXPR)
+ return e;
+
+ switch (TREE_CODE_CLASS (code))
+ {
+ case tcc_exceptional:
+ case tcc_type:
+ case tcc_declaration:
+ case tcc_comparison:
+ case tcc_statement:
+ case tcc_expression:
+ case tcc_reference:
+ case tcc_vl_exp:
+ /* If this is a COMPONENT_REF of a fat pointer, save the entire
+ fat pointer. This may be more efficient, but will also allow
+ us to more easily find the match for the PLACEHOLDER_EXPR. */
+ if (code == COMPONENT_REF
+ && TYPE_IS_FAT_POINTER_P (TREE_TYPE (TREE_OPERAND (e, 0))))
+ result = build3 (COMPONENT_REF, type,
+ gnat_stabilize_reference_1 (TREE_OPERAND (e, 0),
+ force),
+ TREE_OPERAND (e, 1), TREE_OPERAND (e, 2));
+ else if (TREE_SIDE_EFFECTS (e) || force)
+ return save_expr (e);
+ else
+ return e;
+ break;
+
+ case tcc_constant:
+ /* Constants need no processing. In fact, we should never reach
+ here. */
+ return e;
+
+ case tcc_binary:
+ /* Recursively stabilize each operand. */
+ result = build2 (code, type,
+ gnat_stabilize_reference_1 (TREE_OPERAND (e, 0), force),
+ gnat_stabilize_reference_1 (TREE_OPERAND (e, 1),
+ force));
+ break;
+
+ case tcc_unary:
+ /* Recursively stabilize each operand. */
+ result = build1 (code, type,
+ gnat_stabilize_reference_1 (TREE_OPERAND (e, 0),
+ force));
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+
+ TREE_READONLY (result) = TREE_READONLY (e);
+
+ TREE_THIS_VOLATILE (result) = TREE_THIS_VOLATILE (e);
+ TREE_SIDE_EFFECTS (result) |= TREE_SIDE_EFFECTS (e);
+ return result;
+}
+\f
/* Convert SLOC into LOCUS. Return true if SLOC corresponds to a source code
location and false if it doesn't. In the former case, set the Gigi global
variable REF_FILENAME to the simple debug file name as given by sinput. */
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