LLVM doesn't support non-call exception. This test was passing
more or less by luck: if the faulting instruction is between two
calls with the same landing pad (in instruction layout order,
not the program's logic order), it generates a merged PC range
that covers the faulting instruction. If the instruction layout
order changes, or it uses two different (but may be degenerate)
landing pads, this doesn't work.
Reviewed-on: https://go-review.googlesource.com/c/140517
From-SVN: r264985
This change is aimed at getting rid of spurious -Wuninitialized warnings
issued for small records passed by copy and containing default values
for some of their components.
The source of the problem is that the _Init parameter of the
initialization routine is declared as an in/out parameter, so the
uninitialized object is passed by copy to it and this can be flagged by
-Wuninitialized.
That's why the mode of the parameter is changed to out, except for the
cases where information really needs to be passed in: unconstrained
array types, protected and task types.
For the following record type Rec!
type Rec is record
B : Boolean := True;
end record;
the initialization routine must now be:
procedure r__recIP (_init : out r__rec1) is
begin
_init.b := true;
return;
end r__recIP;
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch3.adb (Is_Null_Statement_List): New predicate.
(Build_Array_Init_Proc): Use it to find out whether the
initialization procedure Is_Null_Init_Proc; if so, set
Warnings_Off on the parameter.
(Build_Init_Procedure): Likewise.
(Init_Formals): Use an in/out first parameter only for
unconstrained arrays and for records either containing or built
for proteced types or task types; use an out parameter in all
the other cases.
* fe.h (Is_Init_Proc): Declare.
* gcc-interface/decl.c (type_requires_init_of_formal): Do not
return true for a discriminant in an unchecked union.
(gnat_to_gnu_param): Do not create a PARM_DECL for the Out
parameter of an initialization procedure.
From-SVN: r264984
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: If
this is not a definition, retrieve the expression in all cases
even if we are just annotating types.
* gcc-interface/trans.c (gnat_to_gnu): Also translate Size
attribute for constrained types in this mode.
From-SVN: r264983
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* adaint.c (__gnat_get_executable_suffix_ptr): Add new line.
(__gnat_locate_exec): Check that HOST_EXECUTABLE_SUFFIX is not
empty before doing a string search for it.
* socket.c (ATTRIBUTE_UNUSED): Define.
(__gnat_disable_sigpipe): Add ATTRIBUTE_UNUSED on parameter.
* terminals.c (ATTRIBUTE_UNUSED): Move around.
(__gnat_setup_child_communication): Add ATTRIBUTE_UNUSED on
parameter.
(__gnat_send_header): Add ATTRIBUTE_UNUSED on parameters.
From-SVN: r264982
GNATprove does not have sometimes the precise information of the
compiler about size of types and objects, so that it cannot evaluate the
expressions in pragma Compile_Time_Error/Warning the same way the
compiler does. Thus, these pragmas should be ignored in GNATprove mode,
as it can neither verify them nor assume them (if the expression cannot
be evaluated at compile time, then the semantics for GNAT is to ignore
them).
2018-10-09 Yannick Moy <moy@adacore.com>
gcc/ada/
* sem_prag.adb (Process_Compile_Time_Warning_Or_Error): Rewrite
pragmas as null statements in GNATprove mode.
From-SVN: r264981
This fixlet gets rid of a spurious error issued in the specific case of
a call to a subprogram taking an Out parameter of a discriminated record
type without default discriminants, if the actual parameter is the
result of the conversion to the record type of a variable whose type is
derived from the record and has a representation clause.
The compiler was failing to initialize the temporary made around the
call because of the representation clause, but this is required for a
type with discriminants because discriminants may be read by the called
subprogram.
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_ch6.adb (Add_Call_By_Copy_Code): Initialize the temporary
made for an Out parameter if the formal type has discriminants.
gcc/testsuite/
* gnat.dg/derived_type5.adb, gnat.dg/derived_type5_pkg.ads: New
testcase.
From-SVN: r264980
The back-end was recently changed to issue more -Wuninitialized warnings
on Out parameters and this has caught a case related to
Ada.Iterator_Interface.: This patchlet simply kills this uninteresting
warning.
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* exp_disp.adb (Make_Disp_Asynchronous_Select_Spec): Set
Warnings_Off on the B out parameter.
gcc/testsuite/
* gnat.dg/warn17.adb: New testcase.
From-SVN: r264977
This fixes a recent regression introduced in the compiler for the
inlined renaming of a subprogram instantiated in a package body. It was
wrongly clearing the Is_Public flag on the entity associated with the
body.
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* sem_ch7.adb (Has_Referencer): Add comment for the
N_Freeze_Entity case. Do not rely on
Has_Referencer_Of_Non_Subprograms to clear the Is_Public flag on
subprogram entities.
gcc/testsuite/
* gnat.dg/inline14.adb, gnat.dg/inline14_pkg.adb,
gnat.dg/inline14_pkg.ads: New testcase.
From-SVN: r264975
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_unst.adb (In_Synchronized_Call): Handle properly private
types whose full views are synchronized types, in order to
recognize generated subprograms whose bodies must be considered
reachable even if no direct calls to them are visible in the
source.
From-SVN: r264974
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_ch4.adb (Expand_Modular_Op): When expanding an operation
on nonbinary modular types, convert the opersnds to an integer
type that is large enough to hold the modulus of the type, which
may be larger than Integer'Last.
From-SVN: r264973
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_unst.adb (Unnest_Subprogram): When an uplevel reference
is to an unconstrained formal, the 'Access reference that is
created to initialize the corresponding component of the
activation record must be wrapped in an unchecked conversion to
the generated type of the component. Otherwise, spurious suvtype
conformance errors will be generated when the code is within an
instantiation and the type of the formal is a formal type of the
enclosing generic. Note that during unnesting there is no simple
way to determine that the code appears within an instance
because ther is no scope stack.
From-SVN: r264972
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* gcc-interface/decl.c (type_requires_init_of_formal): New
predicate.
(gnat_to_gnu_param): Use it to determine whether a PARM_DECL
must be created for an Out parameter passed by copy.
From-SVN: r264971
2018-10-09 Claire Dross <dross@adacore.com>
gcc/ada/
* libgnat/a-cfinve.ads: Remove default value for
Max_Size_In_Storage_Elements as it was not supported in SPARK.
From-SVN: r264969
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_ch6.adb (Add_Call_By_Copy_Node,
Add_Simple_Call_By_Copy_Node, Expand_Call_Helper): Reset
Is_True_Constant on entities used as Out or In_Out parameters in
calls.
From-SVN: r264968
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_unst.adb (Unnest_Subprogram): Do not load System to obtain
the Address entity unless an activation record is being built.
Removes useless with_clauses for System when nested subprograms
do not have uplevel references, and therefore do not need
activation records.
From-SVN: r264967
This patch removes an improper error message on a visibility change in
an aspect expression between the freeze point and the end of the
declaration list, when the expression involves a call to a instance of
Unchecked_Conversion and the enclosing package declaration has a package
body with multiple subprogram bodies.
The following must compile quietly:
----
package body Par.Rep is
procedure Nothing is begin null; end;
procedure Rien is begin null; end;
end;
----
with Par.Loc;
package Par.Rep is
type Rec is record
X, Y : Integer;
end record
with Volatile;
Thing2 : Unsigned_32 := 15;
Thing3 : Rec
with Volatile, Address => To_Address (Par.Loc.Flash_Base);
procedure Nothing;
end;
----
pragma Restrictions (No_Elaboration_Code);
with interfaces; use interfaces;
pragma unreferenced (interfaces);
with Tp; use Tp;
pragma unreferenced (Tp);
package Par is
end Par;
----
with Ada.Unchecked_Conversion;
with System;
with Interfaces; use Interfaces;
package Tp is
subtype system_address is unsigned_32;
function to_address is new
ada.unchecked_conversion (system_address, system.address);
function To_32 is new
ada.unchecked_conversion (System.Address, System_Address);
end;
----
with TP; use TP;
package Par.Loc is
FLASH_BASE : constant system_address := 16#0800_0000#;
end;
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* sem_ch6.adb (Fully_Conformant_Expressions): Handle properly
the conformance check on an aspect expression that includes a
call to an instance of Unchecked_Conversion, or more generally a
call to an intrinsic operation.
From-SVN: r264966
2018-10-09 Eric Botcazou <ebotcazou@adacore.com>
gcc/ada/
* repinfo.adb: Remove with/use clause for Stand.
(List_Mechanisms): List the mechanism of functions only.
From-SVN: r264965
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* checks.adb (Apply_Type_Conversion_Checks): Use GNATprove_Mode
rather than SPARK_mode in order to preserve the Do_Range_Check
flag for verification purposes.
From-SVN: r264961
This patch suppresses a spurious warning coming from the GCC backend, on
an aggregate that cannot be built in place and for which a temporary
variable must be created. If the type of the aggregate is a packed
boolean array, the generated code may appear to use an uninitialized
value for a component of the array, when in fact the code simply sets a
single bit of that array.
2018-10-09 Ed Schonberg <schonberg@adacore.com>
gcc/ada/
* exp_aggr.adb (Expand_Array_Aggregate): If it is not possible
to build in place an aggregate with component associations, set
the Warnings_Off flag on the generated temporary, to prevent
spurious warnings from the backend when compiling with the
-Wuninitialized gcc flag.
gcc/testsuite/
* gnat.dg/warn18.adb: New testcase.
From-SVN: r264960
The typedefs for common specializations of std::__cxx11::basic_string do
not need to be in the std::__cxx11 namespace. Those typedefs are never
used for linkage purposes so don't appear in mangled names, and so don't
need to be distinct from the equivalent typedefs for the COW
std::basic_string specializations. It is OK for the same typedef to
refer to different types in different translation units.
Defining them directly in namespace std improves diagnostics that use
those typedefs. For example:
error: could not convert '1' from 'int' to 'std::__cxx11::string' {aka 'std::__cxx11::basic_string<char>'}
will now be printed as:
error: could not convert '1' from 'int' to 'std::string' {aka 'std::__cxx11::basic_string<char>'}
The precise type is still shown, but the typedef is not obfuscated with
the inline namespace.
* include/bits/stringfwd.h (string, wstring, u16string, u32string):
Define typedefs outside of __cxx11 inline namespace.
* python/libstdcxx/v6/printers.py (register_type_printers): Also
register printers for typedefs in new location.
From-SVN: r264958
2018-10-09 Paul Thomas <pault@gcc.gnu.org>
PR fortran/87151
* trans-array.c (gfc_get_array_span): Deal with deferred char
array components having a TYPE_MAX_VALUE of zero.
(gfc_array_init_size): Use the hidden string length component
to build the descriptor dtype.
(gfc_array_allocate): Remove the erroneous replacement of the
charlen backend decl with a temporary.
(gfc_conv_expr_descriptor): Use the ss_info string length in
the case of deferred character components.
(gfc_alloc_allocatable_for_assignment): Actually compare the
string lengths for deferred characters. Make sure that kind > 1
is handled correctly. Set the span field of the descriptor.
* trans-intrinsic.c (gfc_conv_intrinsic_len): Remove the stupid
comment.
PR fortran/80931
* trans-array.c (gfc_array_allocate): Set the span field for
variable length character arrays.
2018-10-09 Paul Thomas <pault@gcc.gnu.org>
PR fortran/87151
* gfortran.dg/deferred_type_component_3.f90: New test.
PR fortran/80931
* gfortran.dg/deferred_character_28.f90: New test.
* gfortran.dg/deferred_character_29.f90: New test (note that
this test appears in PR83196 comment #4 by mistake).
From-SVN: r264949
PR tree-optimization/86659
* gimple-match.h (struct gimple_match_op): Add reverse field.
(gimple_match_op::set_op): New overloaded method.
* gimple-match-head.c (maybe_build_generic_op) <BIT_FIELD_REF>: Set
the REF_REVERSE_STORAGE_ORDER flag on the value.
(gimple_simplify) <GIMPLE_ASSIGN>: For BIT_FIELD_REF, propagate the
REF_REVERSE_STORAGE_ORDER flag and avoid simplifying if it is set.
From-SVN: r264942
As pointed out by Richard in PR63155. It speeds up the testcase a few %.
2018-10-08 Richard Sandiford <richard.sandiford@arm.com>
gcc/
PR middle-end/63155
* gimple-ssa-backprop.c (backprop::intersect_uses): Use
FOR_EACH_IMM_USE_FAST instead of FOR_EACH_IMM_USE_STMT.
From-SVN: r264941
Define _mm512_mask3_fmaddsub_round_pd with
__builtin_ia32_vfmaddsubpd512_mask, instead of
__builtin_ia32_vfmaddpd512_mask.
PR target/87517
* config/i386/avx512fintrin.h (_mm512_mask_fmaddsub_round_pd):
Defined with __builtin_ia32_vfmaddsubpd512_mask.
From-SVN: r264935
2018-10-08 Richard Biener <rguenther@suse.de>
* config/i386/x86-tune-costs.h (znver1_cost): Make AVX256 vector loads
cost the same as AVX128 ones.
From-SVN: r264934
2018-10-08 Martin Liska <mliska@suse.cz>
* gcc.target/i386/i386.exp: Move procedures to
target-supports.exp.
* g++.target/i386/i386.exp: New file.
* gcc.target/i386/mv*.C: Move here tests and remove
target filter in these tests.
From-SVN: r264929
gcc/fortran/
* expr.c (gfc_check_pointer_assign): Demote "Assignment to
contiguous pointer from non-contiguous target" to a warning.
gcc/testsuite/
* gfortran.dg/contiguous_4.f90: Adjust.
* gfortran.dg/contiguous_4.f90: New test.
From-SVN: r264928
This patch increases the latency of some floating point instructions to better
match the real machine's behavior.
2018-10-08 Robin Dapp <rdapp@linux.ibm.com>
* config/s390/2827.md: Increase latencies for some FP instructions.
From-SVN: r264927
2018-10-08 Richard Biener <rguenther@suse.de>
* tree-vect-loop.c (vect_compute_single_scalar_iteration_cost):
Open a dump scope.
* tree-vectorizer.c (dump_stmt_cost): Add cost param and dump it.
* tree-vectorizer.h (dump_stmt_cost): Adjust.
(add_stmt_cost): Dump return value of the hook.
From-SVN: r264923
PR libstdc++/87538
* include/std/functional (_Not_fn::operator()): Check value of
__is_nothrow_invocable as well.
* testsuite/20_util/function_objects/not_fn/87538.cc: New test.
From-SVN: r264921
2018-10-08 Paul Thomas <pault@gcc.gnu.org>
PR fortran/86372
* trans-stmt.c (trans_associate_var): Character associate names
with variable string length do not have to be deferred length
for the string length to be set, if variable.
2018-10-08 Paul Thomas <pault@gcc.gnu.org>
PR fortran/86372
* gfortran.dg/associate_41.f90: New test.
From-SVN: r264919
Ian Lance Taylor