PR c++/54777
* semantics.c (cxx_eval_constant_expression) <case COMPOUND_EXPR>: If
not ignoring the second operand, pass the original second operand
and not one with stripped nops to cxx_eval_constant_expression.
* g++.dg/cpp0x/constexpr-ref4.C: New test.
From-SVN: r192036
2012-10-03 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (New_Overloaded_Entity): call
Append_Inherited_Subprogram when appropriate.
* sem_dim.adb (Analyze_Dimension_Call): Do not perform dimensional
analysis if call has previous semantic error.
* sem_util.ads, sem_util.adb (Append_Inherited_Subprogram):
new subprogram to handle properly the visibility of inherited
operations that are primitives of a type extension, when the
parent type and operations are declared in the same visible part.
2012-10-03 Robert Dewar <dewar@adacore.com>
* checks.adb (Minimize_Eliminate_Overflow_Checks): Properly
handle case of top level expression within type conversion
* gnat1drv.adb (Adjust_Global_Switches): Set SUPPRESSED as
default for overflow checking for -gnatg mode (includes run-time).
* sem_res.adb (Resolve_Type_Conversion): Avoid bogus warnings
about redundant conversions from MINIMIZED/EXTENDED mode checking
From-SVN: r192029
2012-10-03 Javier Miranda <miranda@adacore.com>
* exp_ch4.adb (Expand_N_Allocator_Expression): Minor code
reorganization and cleanup. Done to ensure proper management of
the C++ constructor covering tagged and untagged types and also
non-default constructors.
* exp_ch6.ads, exp_ch6.adb (Make_CPP_Constructor_Call_In_Allocator):
New subprogram.
From-SVN: r192028
2012-10-03 Gary Dismukes <dismukes@adacore.com>
* sem_ch6.adb: Minor typo fix.
2012-10-03 Robert Dewar <dewar@adacore.com>
* checks.adb (Apply_Arithmetic_Overflow_Minimized_Eliminated):
Set Top_Level properly (to False) for operand of range of
membership test.
* exp_ch4.adb (Expand_Membership_Minimize_Eliminate_Overflow):
Fix crash with -gnato3 and membership operations.
(Expand_Membership_Minimize_Eliminate_Overflow): Fix error message
and wrong results for -gnato3 large expression and predicated
subtype.
(Expand_Membership_Minimize_Eliminate_Overflow): Use
expression action node to avoid using insert actions (bombs in
some cases).
(Expand_Compare_Minimize_Eliminate_Overflow): Use expression action
node to avoid using insert actions (bombs in some cases).
2012-10-03 Javier Miranda <miranda@adacore.com>
* exp_disp.adb (Set_CPP_Constructors_Old): Handle constructor of
untagged type that has all its parameters with defaults and hence it
covers the default constructor.
From-SVN: r192027
2012-10-03 Yannick Moy <moy@adacore.com>
* checks.adb, sem_prag.adb, s-bignum.ads: Minor typo fixes.
2012-10-03 Thomas Quinot <quinot@adacore.com>
* g-socket.adb (Connect_Socket, version with timeout): When the
newly-connected socket is reported as available for writing, check
whether it has a pending asynchronous error prior to returning.
2012-10-03 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Check_Conformance): Additional info when subtype
conformance fails, due to a missing null exclusion indicatar in
a formal that must match a controlling access formal.
From-SVN: r192026
2012-10-02 Andrew Pinski <apinski@cavium.com>
* simplify-rtx.c (simplify_unary_operation_1 <case TRUNCATE>):
Don't optimize a truncate of a mem if it is a vector mode.
From-SVN: r192006
gcc/
* ira-int.h (target_ira_int): Add x_ira_useful_class_mode_regs.
(ira_useful_class_mode_regs): New macro.
* ira.c (clarify_prohibited_class_mode_regs): Set up
ira_useful_class_mode_regs.
* ira-color.c (setup_profitable_hard_regs): Use it to initialise
profitable_hard_regs.
From-SVN: r191996
gcc/
* ira.h (target_ira): Add x_ira_class_singleton.
(ira_class_singleton): New macro.
* ira.c (setup_prohibited_class_mode_regs): Set up ira_class_singleton.
* ira-build.c (update_conflict_hard_reg_costs): Use
ira_class_singleton to check for classes with a single
allocatable register.
* ira-lives.c (ira_implicitly_set_insn_hard_regs): Likewise.
(single_reg_class): Likewise. When more than one class is specified,
check whether they have the same singleton register.
(process_single_reg_class_operands): Require single_reg_class
to return NO_REGS or a class with a single allocatable register.
Obtain that register from ira_class_singleton.
From-SVN: r191995
* config/rs6000/rs6000.c (rs6000_option_override_internal): Do not
set TARGET_ALTIVEC_VRSAVE for TARGET_ELF.
(rs6000_stack_info): Only set vrsave_mask if TARGET_ALTIVEC_VRSAVE.
From-SVN: r191986
PR tree-optimization/54713
* expr.c (categorize_ctor_elements_1): Don't assume purpose is
non-NULL.
* tree-cfg.c (verify_gimple_assign_single): Add verification of
vector CONSTRUCTORs.
* tree-ssa-sccvn.c (vn_reference_lookup_3): For VECTOR_TYPE
CONSTRUCTORs, don't do anything if element type is VECTOR_TYPE,
and don't check index.
* tree-vect-slp.c (vect_get_constant_vectors): VIEW_CONVERT_EXPR
ctor elements first if their type isn't compatible with vector
element type.
From-SVN: r191983
2012-10-02 Ben Brosgol <brosgol@adacore.com>
* gnat_rm.texi: Minor editing.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* sem_ch6.adb (Analyze_Function_Return): Reject a return
expression whose type is a local access to subprogram type.
2012-10-02 Robert Dewar <dewar@adacore.com>
* sem_eval.adb: Minor improvement to Compile_Time_Compare.
2012-10-02 Robert Dewar <dewar@adacore.com>
* checks.adb (Apply_Arithmetic_Overflow_Minimized_Eliminated):
Fix base type problem that resulted in improper conversion.
(Minimize_Eliminate_Overflow_Checks): Properly handle top
level case to avoid unnecessary conversion to bignum or LLI.
(Minimize_Eliminate_Overflow_Checks): Implement uniform two phase
approach for arithmetic operators and for if/case expressions.
* checks.ads: Minor comment fix.
* exp_ch4.adb (Minimized_Eliminated_Overflow_Check): New function,
implements a uniform way of treating minimized/eliminated checks in
two phases.
(Expand_Compare_Minimize_Eliminate_Overflow): Fix cut and
paste error resulting in wrong results for less than in some
cases. (Expand_Membership_Minimize_Eliminate_Overflow):
Fix error caused by incorrect capture of operand types.
(Expand_Membership_Minimize_Eliminate_Overflow): Fix error in
handling of bignum case.
(Expand_N_Case_Expression): Implement
proper two phase handling (Expand_N_If_Expression): Implement
proper two phase handling (Expand_N_Op_Abs): Implement proper
two phase handling ditto for all other arithmetic operators
* sem_res.adb (Resolve_If_Expression): Avoid introducing
unneeded conversions.
From-SVN: r191980
2012-10-02 Robert Dewar <dewar@adacore.com>
* s-bignum.adb (Big_Exp): 0**0 should be 1, not 0.
(Big_Exp): Fix possible error for (-1)**0.
(Big_Exp): Fix error in computing 2**K for small K.
(Big_Mod): Fix wrong sign for negative operands.
(Div_Rem): Fix bad results for operands close to 2**63.
* s-bignum.ads: Add documentation and an assertion to require
LLI size to be 64 bits.
* sem_prag.adb (Analyze_Pragma, case Overflow_Checks): Do not
allow ELIMINATED if LLI'Size is other than 64 bits.
* switch-c.adb (Scan_Switches): Do not allow -gnato3 if LLI'Size
is not 64 bits.
* switch.ads (Bad_Switch): Add missing pragma No_Return.
* gnat_ugn.texi: Added appendix on Overflow Check Handling in GNAT.
2012-10-02 Robert Dewar <dewar@adacore.com>
* sem_type.adb: Minor reformatting.
From-SVN: r191979
2012-10-02 Robert Dewar <dewar@adacore.com>
* sem_ch8.adb: Minor reformatting.
2012-10-02 Javier Miranda <miranda@adacore.com>
* exp_disp.adb (Set_CPP_Constructors): Handle constructor with default
parameters that covers the default constructor.
2012-10-02 Yannick Moy <moy@adacore.com>
* s-bignum.adb: Minor stylistic and comment corrections.
2012-10-02 Pascal Obry <obry@adacore.com>
* prj-util.adb (For_Interface_Sources): Iterate over all sources in
aggregate library projects.
From-SVN: r191977
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* sem_ch8.adb (Find_Direct_Name): The left-hand side of an
assignment may designate a generalized reference.
From-SVN: r191976
2012-10-02 Eric Botcazou <ebotcazou@adacore.com>
* types.h (N_Return_Statement): Delete.
* gcc-interface/trans.c (gnat_to_gnu): Replace N_Return_Statement with
N_Simple_Return_Statement.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* freeze.adb (Freeze_Entity): in a generic context, aspects must
be analyzed because they may be queried subsequently within the
generic unit, even if no other freezing actions are generated
for an entity.
* sem_ch13.adb (Analyze_Aspects_At_Freeze_Point): iterator
aspects must be analyzed because they are delayed aspects and
the corresponding attribute definition clause may not have been
analyzed yet.
2012-10-02 Yannick Moy <moy@adacore.com>
* gnat_rm.texi: Minor editing.
From-SVN: r191975
2012-10-02 Robert Dewar <dewar@adacore.com>
* sinfo.adb, sinfo.ads, sem_util.adb, sem_util.ads, types.h,
exp_ch4.adb, exp_ch6.adb: Get rid of internal use of N_Return_Statement.
From-SVN: r191974
2012-10-02 Eric Botcazou <ebotcazou@adacore.com>
* types.h: Minor cosmetic fix.
2012-10-02 Robert Dewar <dewar@adacore.com>
* sinfo.ads: Remove refs of N_Conditional_Expression and
N_Parameterized_Expression.
2012-10-02 Thomas Quinot <quinot@adacore.com>
* exp_aggr.adb (Get_Component_Val): Rewrite code that computes
justification of bits in enclosing word in an attempt to make
it clearer.
From-SVN: r191973
* gcc-interfaces/decl.c (elaborate_expression_1): Use the variable for
bounds of loop iteraration scheme only for locally defined subtypes.
* gcc-interface/trans.c (gigi): Fix formatting.
(build_return_expr): Apply the NRV optimization only for BLKmode.
From-SVN: r191971
2012-10-02 Marc Glisse <marc.glisse@inria.fr>
* tree-ssa-forwprop.c (forward_propagate_into_cond): Don't use
boolean_type_node for vectors.
From-SVN: r191968
2012-10-02 Robert Dewar <dewar@adacore.com>
* exp_ch4.adb (Expand_N_Op_Expon): Use expression with actions
for x ** 4.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* sem_ch5.adb: (Analyze_Iterator_Specification): If container
has a variable indexing aspect, the element is a variable and
is modifiable in the loop. This check is also performed when the
loop is expanded, but it must be done in semantic analysis when
expansion is disabled, for example for ASIS usage.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* lib-xref.adb (Generate_Reference): If a child subprogram
has no previous spec, treat a reference to its formals (such
as a parameter association) as coming from source in order to
generate the proper references and enable gps navigation between
reference and declaration.
From-SVN: r191965
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* exp_ch4.adb (Expand_N_Case_Expression): Do not introduce
indirections when the type of the alternatives is an access type:
more efficient, and removes anomalies when an alternative is
statically null.
2012-10-02 Robert Dewar <dewar@adacore.com>
* aspects.ads: Minor comment addition (Invariant is a GNAT aspect).
From-SVN: r191963
2012-10-02 Robert Dewar <dewar@adacore.com>
* exp_ch7.adb, sem_dim.adb, sem_dim.ads, prj-part.adb, checks.adb,
freeze.adb, sem_ch4.adb, sem_ch13.adb: Minor reformatting.
2012-10-02 Robert Dewar <dewar@adacore.com>
* sem_prag.adb (Analyze_Pragma, case Overflow_Checks): Fix
typo preventing proper processing of Overflow_Checks pragmas
for general case.
2012-10-02 Robert Dewar <dewar@adacore.com>
* exp_ch4.adb (Expand_N_Op_Mod): Fix crash in ELIMINATED overflow
checks mode when bignum mode is used.
2012-10-02 Robert Dewar <dewar@adacore.com>
* stylesw.ads, gnat_ugn.texi: Document new style rule for NOT IN.
* par-ch4.adb (P_Relational_Operator): Add style check for NOT IN.
* style.ads, styleg.adb, styleg.ads (Check_Not_In): New procedure.
From-SVN: r191962
2012-10-02 Vincent Pucci <pucci@adacore.com>
* sem_attr.adb (Analyze_Attribute): Check dimension for attribute
Old before it gets expanded.
* sem_dim.adb (Analyze_Dimension_Has_Etype): Correctly propagate
dimensions for identifier.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* exp_ch5.adb (Expand_Iterator_Loop): Handle properly the case
where the iterator type is derived locally from an instantiation
of Ada.Iterators_Interface.
* exp_ch7.adb (Establish_Transient_Scope): Do not create a
transient scope if within the expansion of an iterator loop,
because a transient block already exists.
2012-10-02 Vincent Celier <celier@adacore.com>
* gnatcmd.adb: Use absolute path for configuration pragmas files
* make.adb (Configuration_Pragmas_Switch.Absolute_Path): Moved
to Makeutl.
* makeutl.ads, makeutl.adb (Absolute_Path): New function, moved from
make.adb.
2012-10-02 Vincent Celier <celier@adacore.com>
* prj-part.adb (Post_Parse_Context_Clause): Resurrect Boolean
parameter In_Limited. Check for circularity also if In_Limited
is True.
(Parse_Single_Project): Call Post_Parse_Context_Clause with
In_Limited parameter.
From-SVN: r191961
2012-10-02 Bob Duff <duff@adacore.com>
* checks.adb (Apply_Predicate_Check): Disable check in -gnatc mode.
2012-10-02 Vincent Pucci <pucci@adacore.com>
* sem_ch6.adb (Analyze_Function_Call): Dimension propagation
for function calls moved to Analyze_Dimension_Call.
* sem_dim.adb (Analyze_Dimension_Call): Properly propagate the
dimensions from the returned type for function calls.
2012-10-02 Vincent Celier <celier@adacore.com>
* gnatcmd.adb: Take into account any configuration pragma file
in the project files for gnat pretty/stub/metric.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* sem_ch13.adb (Check_Indexing_Functions): Refine several tests
on the legality of indexing aspects: Constant_Indexing functions
do not have to return a reference type, and given an indexing
aspect Func, not all overloadings of Func in the current scope
need to be indexing functions.
2012-10-02 Vasiliy Fofanov <fofanov@adacore.com>
* gnat_ugn.texi: Adjust docs for overflow checks to be VMS-friendly.
2012-10-02 Vincent Celier <celier@adacore.com>
* switch-m.adb (Normalize_Compiler_Switches): Recognize switches
-gnatox and -gnatoxx when x=0/1/2/3.
From-SVN: r191960
2012-10-02 Vincent Pucci <pucci@adacore.com>
* sem_ch4.adb (Analyze_Indexed_Component_Form): Dimension
analysis for indexed components added.
* sem_ch6.adb (Analyze_Function_Call): Dimension propagation
for function calls added.
* sem_dim.adb (Analyze_Dimension): Call to
Analyze_Dimension_Has_Etype when N is a function call.
(Analyze_Dimension_Call): Don't propagate anymore the dimensions
for function calls since this is now treated separately in
Analyze_Dimension_Has_Etype.
(Analyze_Dimension_Has_Etype): For
attribute references, propagate the dimensions from the prefix.
* sem_dim.ads (Copy_Dimensions): Fix comment.
2012-10-02 Hristian Kirtchev <kirtchev@adacore.com>
* checks.ads, checks.adb (Apply_Parameter_Aliasing_Checks): New routine.
(Apply_Parameter_Aliasing_And_Validity_Checks): This routine
has been split into two.
(Apply_Parameter_Validity_Checks): New routine.
* exp_ch6.adb (Expand_Call): Add checks to verify that actuals
do not overlap. The checks are made on the caller side to overcome
issues of parameter passing mechanisms.
* freeze.adb (Freeze_Entity): Update call to
Apply_Parameter_Aliasing_And_Validity_Checks.
From-SVN: r191959
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* sem_ch4.adb (Is_Empty_Range): Use bounds of index type
to determine whether an array is empty when optimizing
a quantified expression over a null range. Use of RM_Size
was incorrect. Analyze condition before constant-folding the
expression to catch potential errors. Modify the error message
to avoid mathematical terminology.
From-SVN: r191958
2012-10-02 Robert Dewar <dewar@adacore.com>
* usage.adb, gnat_rm.texi, vms_data.ads: Add entry for
/OVERFLOW_CHECKS=?? generating -gnato?? for control
of extended overflow checking.
* ug_words: Add entry for -gnato?? for /OVERFLOW_CHECKS=??
* gnat_ugn.texi: Add documentation for -gnato?? for control of overflow
checking mode.
2012-10-02 Ed Schonberg <schonberg@adacore.com>
* sem_ch4.adb (Analyze_Quantified_Expression): If the iterator in
a quantified expression is statically known to be null (e.g. a
array with an empty index type) emit a warning.
From-SVN: r191957
