runtime/internal/sys: new package, API copied from Go 1.7

    Copy over the Go 1.7 runtime/internal/sys package, but instead of having
    separate files for each GOARCH and GOOS value, set the values in
    configure.ac and write them out in Makefile.am.  Setting the values in
    configure.ac should make it easier to add new processors.

    Remove the automake GOARCH conditionals, which are no longer used.
    Leave the GOOS conditionals for now, as they are used for the C runtime
    package.

    Reviewed-on: https://go-review.googlesource.com/29018

From-SVN: r240083

re PR ipa/61159 (__builtin_constant_p gives incorrect results with aliases)

PR ipa/61159
* compile/pr61159.c: New testcase

From-SVN: r240082

re PR ipa/63416 (Three calls to empty functions via pointers get folded, but not inlined)

PR ipa/64316
* gcc.dg/ipa/pr63416.c: New testcase.

From-SVN: r240081

Fix bootstrap failure when ATOMIC_INT_LOCK_FREE < 2

* libsupc++/new_opant.cc: Include exception_defines.h.
* libsupc++/new_opvant.cc: Likewise.

From-SVN: r240080

Daily bump.

From-SVN: r240079

Fix typo in log.

From-SVN: r240076

Fix typo in log.

From-SVN: r240075

re PR fortran/77532 ([F03] ICE in check_dtio_interface1, at fortran/interface.c:4622)

2016-09-10  Paul Thomas  <pault@gcc.gnu.org>
    Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77532
^ interface.c (check_dtio_arg_TKR_intent): Return after error.
(check_dtio_interface1): Remove asserts, test for NULL and return
if found.

gfortran.dg/dtio_11.f90: new test.

Co-Authored-By: Steven G. Kargl <kargl@gcc.gnu.org>
From-SVN: r240074

re PR fortran/77507 (gfortran rejects keyworded calls to procedures from intrinsic modules)

2016-09-10  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77507
* gfortran.dg/c_assoc_2.f03: Update for r240050
* gfortran.dg/c_assoc_4.f90: Ditto.

From-SVN: r240073

Make canonical_va_list_type more strict

2016-09-10  Tom de Vries  <tom@codesourcery.com>

PR C/71602
* builtins.c (std_canonical_va_list_type): Strictly return non-null for
va_list type only.
* config/i386/i386.c (ix86_canonical_va_list_type): Same.
* gimplify.c (gimplify_va_arg_expr): Handle &va_list.

* c-common.c (build_va_arg): Handle more strict
targetm.canonical_va_list_type.  Replace first argument type error with
assert.

* c-c++-common/va-arg-va-list-type.c: New test.

From-SVN: r240072

libgo: update to Go 1.7.1 release

    Reviewed-on: https://go-review.googlesource.com/29012

From-SVN: r240071

runtime/internal/atomic: new package, API copied from Go 1.7

    Copy over the Go 1.7 runtime/internal/atomic package, but implement the
    functions in C using __atomic functions rather than using the
    processor-specific assembler code.

    Reviewed-on: https://go-review.googlesource.com/29010

From-SVN: r240070

go-backend.c (go_trampoline_info): Remove.

* go-backend.c (go_trampoline_info): Remove.
* go-c.h (go_trampoline_info): Don't declare.

From-SVN: r240069

Fix -Wshadow warning in libiberty/cp-demangle.c

valgrind contains a copy of the libiberty demangler which gets compiled
with -Wshadow. That shows the following warning:

cp-demangle.c: In function ‘d_substitution’:
cp-demangle.c:3772:35: warning: declaration of ‘c’ shadows a previous local
        struct demangle_component *c;
                                   ^
cp-demangle.c:3708:8: note: shadowed declaration is here
   char c;
        ^

Fix that by renaming the struct demangle_component variable to dc.

libiberty/ChangeLog:

* cp-demangle.c (d_substitution): Change struct demangle_component
variable name from c to dc.

From-SVN: r240068

compiler: code cleanup (unused header file)

    Remove inclusion of simple-ojbject.h (no longer needed);
    adjust comments.

    Reviewed-on: https://go-review.googlesource.com/28856

From-SVN: r240067

re PR rtl-optimization/77289 (ICE in extract_constrain_insn, at recog.c:2212 on powerpc64)

gcc/
PR rtl-optimization/77289
* lra-constraints.c (get_final_hard_regno): Add support for non hard
register numbers.  Remove support for subregs.
(get_hard_regno): Use SUBREG_P.  Don't call get_final_hard_regno().
(get_reg_class): Delete removed get_final_hard_regno() argument.
(uses_hard_regs_p): Call get_final_hard_regno().

gcc/testsuite/
PR rtl-optimization/77289
* gcc.target/powerpc/pr77289.c: New test.

From-SVN: r240065

Commit the ChangeLog entry for revision 240063.

From-SVN: r240064

re PR fortran/77420 (gfortran and equivalence produces internal compiler error)

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77420
* module.c (load_equiv): If the current namespace has a list of
equivalence statements, initialize duplicate to false and then
look for duplicates; otherwise, initialize it to true.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77420
* gfortran.dg/pr77420.f90: New test.

From-SVN: r240063

Daily bump.

From-SVN: r240062

PR c/77520 - wrong value for extended ASCII characters in -Wformat message

PR c/77520 - wrong value for extended ASCII characters in -Wformat message
PR c/77521 - %qc format directive should quote non-printable characters

gcc/c-family/ChangeLog:

PR c/77520
PR c/77521
* c-format.c (argument_parser::find_format_char_info): Use %qc
format directive unconditionally.

gcc/ChangeLog:

PR c/77520
PR c/77521
* pretty-print.c (pp_quoted_string): New function.
(pp_format): Call it for %c and %s directives.

gcc/testsuite/ChangeLog:

PR c/77520
PR c/77521
* gcc.dg/pr77520.c: New test.
* gcc.dg/pr77521.c: New test.

From-SVN: r240059

tm.texi.in (INITIAL_FRAME_POINTER_OFFSET): Remove.

2016-09-10  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/tm.texi.in (INITIAL_FRAME_POINTER_OFFSET): Remove.
        (ELIMINABLE_REGS, TARGET_CAN_ELIMINATE,
        INITIAL_ELIMINATION_OFFSET) : Update documentation.
        * target.def (frame_pointer_required, can_eliminate): Likewise.
        * doc/tm.texi: Regenerated.
        * builtins.c (expand_builtin_setjmp_receiver): Remove #ifdef
        ELIMINABLE_REGS.
        * df-scan.c (df_hard_reg_init): Likewise.
        * ira.c (ira_setup_eliminable_regset): Likewise.
        * lra-eliminations.c (reg_eliminate_1, (update_reg_eliminate,
        init_elim_table): Likewise.
        * reload1.c (reg_eliminate_1, verify_initial_elim_offsets,
        set_initial_elim_offsets, update_eliminables,
        init_elim_table): Likewise.
        * rtlanal.c (get_initial_register_offset): Likewise.
        * config/ft32/ft32.h (INITIAL_FRAME_POINTER_OFFSET): Remove.
        * config/m32r/m32r.h (INITIAL_FRAME_POINTER_OFFSET): Likewise.
        * config/moxie/moxie.h (INITIAL_FRAME_POINTER_OFFSET): Likewise.
        * config/vax/vax.h (INITIAL_FRAME_POINTER_OFFSET): Likewise.
        * config/fr30/fr30.h: Fix comment.
        * config/frv/frv.c: Likewise.
        * config/frv/frv.h: Likewise.
        * config/ft32/ft32.h: Likewise.
        * config/visium/visium.h: Likewise.
        * config/pa/pa64-linux.h: Likewise.
        * config/v850/v850.h: Likewise.
        * config/cris/cris.c: Likewise.
        * config/ia64/ia64.h: Likewise.
        * config/moxie/moxie.h: Likewise.
        * config/m32r/m32r.h: Likewise.

From-SVN: r240058

re PR target/77267 (MPX does not work in a presence of "-Wl,-as-needed" option (Ubuntu default))

Fix PR target/77267

2016-09-10  Alexander Ivchenko  <alexander.ivchenko@intel.com>

PR target/77267
* config.in: Regenerate.
* config/i386/linux-common.h (MPX_LD_AS_NEEDED_GUARD_PUSH):
New macro.
(MPX_LD_AS_NEEDED_GUARD_PUSH): Ditto.
(LIBMPXWRAPPERS_SPEC): Remove "--no-whole-archive" from
static-libmpxwrappers case.
(LIBMPX_SPEC): Add guards with MPX_LD_AS_NEEDED_GUARD_PUSH and
MPX_LD_AS_NEEDED_GUARD_POP.
* configure: Regenerate.
* configure.ac (HAVE_LD_PUSHPOPSTATE_SUPPORT): New variable.
defined if linker support "--push-state"/"--pop-state".

From-SVN: r240057

Implement P0035R4, C++17 new of over-aligned types.

gcc/cp/
* cp-tree.h (enum cp_tree_index): Add CPTI_ALIGN_TYPE.
(align_type_node): New macro.
* call.c (build_operator_new_call): Handle C++17 aligned new.
(second_parm_is_size_t, build_op_delete_call): Likewise.
(non_placement_deallocation_fn_p): Likewise. Rename to
usual_deallocation_fn_p.
(aligned_allocation_fn_p, aligned_deallocation_fn_p): New.
* decl.c (cxx_init_decl_processing): Add aligned new support.
* init.c (type_has_new_extended_alignment): New.
(build_new_1): Handle aligned new.
* tree.c (vec_copy_and_insert): New.
gcc/c-family/
* c.opt: Add -faligned-new and -Waligned-new.
* c-common.c (max_align_t_align): Split out from...
(cxx_fundamental_alignment_p): ...here.
* c-common.h: Declare it.
* c-cppbuiltin.c (c_cpp_builtins): Handle aligned new.
libstdc++-v3/
* libsupc++/new: Declare aligned new/delete operators.
* config/abi/pre/gnu.ver: Export them.
* configure.ac: Check for aligned_alloc, posix_memalign, memalign,
_aligned_malloc.
* libsupc++/new_opa.cc: New.
* libsupc++/new_opant.cc: New.
* libsupc++/new_opva.cc: New.
* libsupc++/new_opva.cc: New.
* libsupc++/del_opa.cc: New.
* libsupc++/del_opant.cc: New.
* libsupc++/del_opsa.cc: New.
* libsupc++/del_opva.cc: New.
* libsupc++/del_opvant.cc: New.
* libsupc++/del_opvsa.cc: New.
* libsupc++/Makefile.am: Build them.

From-SVN: r240056

.gitignore: Ignore in-tree prerequisites.

From-SVN: r240055

compiler: increase buffer size to avoid -Wformat-length warning

    GCC will soon get a new -Wformat-length option as described in
    https://gcc.gnu.org/PR49905.  This change makes a buffer larger to avoid
    a warning.

    Reviewed-on: https://go-review.googlesource.com/28915

Also revert ChangeLog entry in gcc/go/ChangeLog--changes to
gcc/go/gofrontend do not get ChangeLog entries.

From-SVN: r240054

compiler: add abstraction layer for sha1 checksums.

    Add new interface for the front end code to use when computing SHA1
    checksums; the intent is to allow the different implementation in
    different back ends.

    No change in functionality for gccgo; this is an enabling change to
    permit the front end to be used with other back ends (e.g. LLVM).

    Reviewed-on: https://go-review.googlesource.com/28833

* go-sha1.cc: New file.
* Make-lang.in (GO_OBJS): Add go/go-sha1.o.
(CFLAGS-go/go-sha1.o): New variable.

From-SVN: r240053

re PR fortran/77506 (F2008 Standard does not allow CHARACTER(LEN=*) in array constructor)

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77506
* array.c (gfc_match_array_constructor): CHARACTER(len=*) cannot
appear in an array constructor.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77506
* gfortran.dg/pr77506.f90: New test.

From-SVN: r240052

cpp.texi (__*_WIDTH__): Small wording fixes.

2016-09-09  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        * doc/cpp.texi (__*_WIDTH__): Small wording fixes.

From-SVN: r240051

re PR fortran/77507 (gfortran rejects keyworded calls to procedures from intrinsic modules)

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77507
* intrinsic.c (add_functions):  Use correct keyword.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77507
  * ieee/ieee_arithmetic.F90 (IEEE_VALUE_4,IEEE_VALUE_8,IEEE_VALULE_10,
IEEE_VALUE_16):  Use correct keyword.

2016-09-09  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77507
* gfortran.dg/pr77507.f90: New test.

From-SVN: r240050

compiler: break dependence on hex_value

    Rework the lexical analyzer to eliminate the need to call
    hex_value() in libiberty (added equivalent local functionality).
    No change in functionality.

    Reviewed-on: https://go-review.googlesource.com/28855

From-SVN: r240049

Define TS 18661-1 type width macros in <limits.h> and <stdint.h>.

TS 18661-1 defines <limits.h> and <stdint.h> macros for widths of
standard integer types and the typedefs defined in, or whose limits
are defined in, <stdint.h>.  (The connection to the main
floating-point subject matter of TS 18661-1 is that these are intended
to be used with the fromfp functions to convert from floating point to
integer types of any width in any rounding direction, though these
macros may be of more general use.)

This patch implements support for these macros in GCC's <limits.h> and
<stdint.h>.  To avoid needing to implement fixincludes for system
headers where GCC wraps the system libc's <stdint.h> in hosted mode,
the test for the <stdint.h> macros uses -ffreestanding (I'll add the
macros to glibc's headers separately) - but as usual for new features
in these headers, platforms (primarily OpenBSD) that use USER_H to
avoid using GCC's headers at all will have failures until the system
headers have the feature added or appropriate fixincludes are
implemented.

The header macros are implemented using appropriate new predefined
macros, with the code avoiding defining more such macros than
necessary (so one predefined macro suffices for corresponding signed
and unsigned types, while no such predefined macros are needed for the
exact-width types such as int8_t).

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

gcc:
* doc/cpp.texi (__SCHAR_WIDTH__, __SHRT_WIDTH__, __INT_WIDTH__)
(__LONG_WIDTH__, __LONG_LONG_WIDTH__, __PTRDIFF_WIDTH__)
(__SIG_ATOMIC_WIDTH__, __SIZE_WIDTH__, __WCHAR_WIDTH__)
(__WINT_WIDTH__, __INT_LEAST8_WIDTH__, __INT_LEAST16_WIDTH__)
(__INT_LEAST32_WIDTH__, __INT_LEAST64_WIDTH__)
(__INT_FAST8_WIDTH__, __INT_FAST16_WIDTH__, __INT_FAST32_WIDTH__)
(__INT_FAST64_WIDTH__, __INTPTR_WIDTH__, __INTMAX_WIDTH__):
Document.
* ginclude/stdint-gcc.h [__STDC_WANT_IEC_60559_BFP_EXT__]: Define
width macros from TS 18661-1.
* glimits.h [__STDC_WANT_IEC_60559_BFP_EXT__]: Likewise.

gcc/c-family:
* c-cppbuiltin.c (builtin_define_type_width): New function.
(builtin_define_stdint_macros, c_cpp_builtins): Define type width
macros.

gcc/testsuite:
* gcc.dg/limits-width-1.c, gcc.dg/stdint-width-1.c: New tests.

From-SVN: r240048

runtime: use alignof to check alignment of ucontext_t

    Use alignof rather than assuming a 16 byte alignment.

    Reviewed-on: https://go-review.googlesource.com/28913

From-SVN: r240047

runtime: remove remaining use of MAKECONTEXT_STACK_TOP macro

    The definition and most uses of MAKECONTEXT_STACK_TOP were removed in
    https://golang.org/cl/88660043, which removed support for Solaris 8/9.
    One use of MAKECONTEXT_STACK_TOP was accidentally left in the source
    code.  Remove it now.

    Reviewed-on: https://go-review.googlesource.com/28911

From-SVN: r240045

runtime: align ucontext_t argument to 16 byte boundary

    Some systems, such as ia64 and PPC, require that a ucontext_t pointer
    passed to getcontext and friends be aligned to a 16-byte boundary.
    Currently the ucontext_t fields in the g structure are defined in Go,
    and Go has no way to ensure a 16-byte alignment for a struct field.
    The fields are currently represented by an array of unsafe.Pointer.
    Enforce the alignment by making the array larger, and picking an offset
    into the array that is 16-byte aligned.

    Reviewed-on: https://go-review.googlesource.com/28910

From-SVN: r240044

[Patch libgcc] Enable HCmode multiply and divide (mulhc3/divhc3)

This patch arranges for half-precision complex multiply and divide
routines to be built if __LIBGCC_HAS_HF_MODE__.  This will be true
if the target supports the _Float16 type.

libgcc/

PR target/63250
*  Makefile.in (lib2funcs): Build _mulhc3 and _divhc3.
* libgcc2.h (LIBGCC_HAS_HF_MODE): Conditionally define.
(HFtype): Likewise.
(HCtype): Likewise.
(__divhc3): Likewise.
(__mulhc3): Likewise.
* libgcc2.c: Support _mulhc3 and _divhc3.

From-SVN: r240043

Daily bump.

From-SVN: r240042

re PR fortran/69514 (ICE with nested array constructor)

2016-09-08  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/69514
* array.c (gfc_match_array_constructor):  If type-spec is present,
walk the array constructor performing possible conversions for
numeric types.

2016-09-08  Steven G. Kargl  <kargl@gcc.gnu.org>
    Louis Krupp      <lkrupp@gcc.gnu.org>

PR fortran/69514
* gfortran.dg/pr69514_1.f90: New test.
* gfortran.dg/pr69514_2.f90: New test.

Co-Authored-By: Louis Krupp <lkrupp@gcc.gnu.org>
From-SVN: r240039

re PR fortran/77500 (ICE in gfc_trans_omp_atomic, at fortran/trans-openmp.c:2822)

PR fortran/77500
* trans-openmp.c (gfc_trans_omp_atomic): For atomic write or
swap, don't try to look through GFC_ISYM_CONVERSION.  In other cases,
check that value.function.isym is non-NULL before dereferencing it.

* gfortran.dg/gomp/pr77500.f90: New test.

From-SVN: r240038

re PR fortran/77516 (ICE in is_gimple_min_invariant, at gimple-expr.c:706)

PR fortran/77516
* omp-low.c (lower_rec_simd_input_clauses): Use max_vf for non-positive
OMP_CLAUSE_SAFELEN_EXPR.

* gfortran.dg/gomp/pr77516.f90: New test.

From-SVN: r240037

Daily bump.

From-SVN: r240036

Correct libgcc complex multiply excess precision handling (PR libgcc/77519).

libgcc complex multiply is meant to eliminate excess
precision from certain internal values by forcing them to memory in
exactly those cases where the type has excess precision.  But in
https://gcc.gnu.org/ml/gcc-patches/2014-09/msg01894.html I
accidentally inverted the logic so that values get forced to memory in
exactly the cases where it's not needed.  (This is a pessimization in
the no-excess-precision case, in principle could lead to bad results
depending on code generation in the excess-precision case.  Note: I do
not have a test demonstrating bad results.)

Bootstrapped with no regressions on x86_64-pc-linux-gnu.  Code size
went down on x86_64 as expected; old sizes:

   text    data     bss     dec     hex filename
    887       0       0     887     377 _muldc3.o
    810       0       0     810     32a _mulsc3.o
   2032       0       0    2032     7f0 _multc3.o
    983       0       0     983     3d7 _mulxc3.o

New sizes:

    847       0       0     847     34f _muldc3.o
    770       0       0     770     302 _mulsc3.o
   2032       0       0    2032     7f0 _multc3.o
    951       0       0     951     3b7 _mulxc3.o

PR libgcc/77519
* libgcc2.c (NOTRUNC): Invert settings.

From-SVN: r240033

PR middle-end/77475: Fix AArch64 testcases.

2016-09-07  Jakub Jelinek  <jakub@redhat.com>

PR middle-end/77475
* gcc.target/aarch64/arch-diagnostics-1.c: Expect error on line 0.
* gcc.target/aarch64/arch-diagnostics-2.c: Likewise.
* gcc.target/aarch64/cpu-diagnostics-1.c: Likewise.
* gcc.target/aarch64/cpu-diagnostics-2.c: Likewise.
* gcc.target/aarch64/cpu-diagnostics-3.c: Likewise.
* gcc.target/aarch64/cpu-diagnostics-4.c: Likewise.

From-SVN: r240030

Move class substring_loc from c-family into gcc

gcc/ChangeLog:
* Makefile.in (OBJS): Add substring-locations.o.
* langhooks-def.h (class substring_loc): New forward decl.
(lhd_get_substring_location): New decl.
(LANG_HOOKS_GET_SUBSTRING_LOCATION): New macro.
(LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_GET_SUBSTRING_LOCATION.
* langhooks.c (lhd_get_substring_location): New function.
* langhooks.h (class substring_loc): New forward decl.
(struct lang_hooks): Add field get_substring_location.
* substring-locations.c: New file, taking definition of
format_warning_va and format_warning_at_substring from
c-family/c-format.c, making them non-static.
* substring-locations.h (class substring_loc): Move class here
from c-family/c-common.h.  Add and rewrite comments.
(format_warning_va): New decl.
(format_warning_at_substring): New decl.
(get_source_location_for_substring): Add comment.

gcc/c-family/ChangeLog:
* c-common.c (get_cpp_ttype_from_string_type): Handle being passed
a POINTER_TYPE.
(substring_loc::get_location): Move to substring-locations.c,
keeping implementation as...
(c_get_substring_location): New function, from the above, reworked
to use accessors rather than member lookup.
* c-common.h (class substring_loc): Move to substring-locations.h,
replacing with a forward decl.
(c_get_substring_location): New decl.
* c-format.c: Include "substring-locations.h".
(format_warning_va): Move to substring-locations.c.
(format_warning_at_substring): Likewise.

gcc/c/ChangeLog:
* c-lang.c (LANG_HOOKS_GET_SUBSTRING_LOCATION): Use
c_get_substring_location for this new langhook.

gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c: Include
"substring-locations.h".

From-SVN: r240028

i386.c: Add 'U' suffix to processor feature bits to avoid -Wnarrowing warning.

* config/i386/i386.c: Add 'U' suffix to processor feature bits
to avoid -Wnarrowing warning.
* config/i386/x86-tune.def: Likewise for DEF_TUNE selector bitmasks.
* opts.c: Likewise for SANITIZER_OPT bitmasks.

From-SVN: r240027

Improve aarch64_legitimize_address - avoid splitting the offset if it is supported.

Improve aarch64_legitimize_address - avoid splitting the offset if it is
supported.  When we do split, take the mode size into account.  BLKmode
falls into the unaligned case but should be treated like LDP/STP.
This improves codesize slightly due to fewer base address calculations:

int f(int *p) { return p[5000] + p[7000]; }

Now generates:

f:
add x0, x0, 16384
ldr w1, [x0, 3616]
ldr w0, [x0, 11616]
add w0, w1, w0
ret

instead of:

f:
add x1, x0, 16384
add x0, x0, 24576
ldr w1, [x1, 3616]
ldr w0, [x0, 3424]
add w0, w1, w0
ret

    gcc/
* config/aarch64/aarch64.c (aarch64_legitimize_address):
Avoid use of base_offset if offset already in range.

From-SVN: r240026

re PR tree-optimization/77450 (ICE: in verify_ssa, at tree-ssa.c:1016 on very simple code with vectors)

2016-09-07  Richard Biener  <rguenther@suse.de>

PR c/77450
* c-c++-common/vector-subscript-8.c: Move ..
* gcc.dg/pr77450.c: ... here.

From-SVN: r240025

[SH] Move definitions for atomic models to sh.h from sh-protos.h.

From-SVN: r240023

Daily bump.

From-SVN: r240022

Fix dates on changelog

From-SVN: r240019

re PR libfortran/77393 (Revision r237735 changed the behavior of F0.0)

2016-09-06  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR libgfortran/77393
* io/write_float.def (build_float_string): Recognize when the
result will not fit in the user provided, star fill, and exit
early.

* gfortran.dg/fmt_f0_2.f90: Update test.
* gfortran.dg/fmt_f0_3.f90: New test.

From-SVN: r240018

re PR debug/77389 (FAIL: g++.dg/debug/dwarf2/template-params-12f.C  -std=gnu++11  scan-assembler-times DIE \\\\([^\\n]*\\\\) DW_TAG_template_value_param ...)

2016-09-07  Dominique d'Humieres  <dominiq@lps.ens.fr>

PR debug/77389
* g++.dg/debug/dwarf2/template-params-12g.C: Pass -gno-strict-dwarf
in dg-options.

PR debug/57519
* g++.dg/debug/dwarf2/imported-decl-2.C: Likewise.

From-SVN: r240015

re PR target/69255 (ICE on x86_64-linux-gnu in "emit_move_insn")

PR target/69255
* config/i386/i386.c (ix86_expand_builtin): For builtin with
unsupported or unknown ISA, use expand_call.

* gcc.target/i386/pr69255-1.c: New test.
* gcc.target/i386/pr69255-2.c: New test.
* gcc.target/i386/pr69255-3.c: New test.

From-SVN: r240014

PR c/77336 -  -Wsuggest-attribute=format warning overly simplistic

gcc/c-family/ChangeLog:

PR c/77336
* c-format.c (check_function_format): Avoid issuing warnings for
functions unless they call format functions with non-constant
format strings.

gcc/testsuite/ChangeLog:

PR c/77336
* gcc.dg/format/miss-7.c: New test.

From-SVN: r240013

c_by_val_1.f: Correct the call to c_to_c and c_to_c8.

* gfortran.dg/c_by_val_1.f: Correct the call to c_to_c and c_to_c8.

From-SVN: r240009

Detect whether target can use -fprofile-update=atomic

PR gcov-profile/77378
PR gcov-profile/77466
* libgcov-profiler.c: Use __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{4,8} to
conditionaly enable/disable *_atomic functions.
PR gcov-profile/77378
PR gcov-profile/77466
* tree-profile.c (tree_profiling): Detect whether target can use
-fprofile-update=atomic.
PR gcov-profile/77378
PR gcov-profile/77466
* gcc.dg/profile-update-warning.c: New test.

From-SVN: r240008

re PR tree-optimization/77479 (Compile time hog w/ -O2 (-Os))

2016-09-06  Richard Biener  <rguenther@suse.de>

PR tree-optimization/77479
* tree-vrp.c (update_value_range): Extend overflow handling to
VARYING.

* gcc.dg/torture/pr77479.c: New testcase.

From-SVN: r240007

re PR tree-optimization/77450 (ICE: in verify_ssa, at tree-ssa.c:1016 on very simple code with vectors)

2016-09-06  Richard Biener  <rguenther@suse.de>

PR c/77450
c-family/
* c-common.c (c_common_mark_addressable_vec): Handle
COMPOUND_LITERAL_EXPR.

* c-c++-common/vector-subscript-7.c: Adjust.
* c-c++-common/vector-subscript-8.c: New testcase.

From-SVN: r240006

Skip Wno-frame-address test for avr

The avr backend supports __builtin_return_address only for the current
stack frame. The test expects it to work for caller frames as well and
therefore fails for avr.

Add avr to the list of targets already excluded with dg-skip-if.

gcc/testsuite/ChangeLog:

2016-09-06  Senthil Kumar Selvaraj  <senthil_kumar.selvaraj@atmel.com>

* gcc.dg/Wno-frame-address.c: Skip for avr-*-*.

From-SVN: r240005

Daily bump.

From-SVN: r240004

variant: include bits/move.h for std::addressof.

2016-09-05  Tim Shen  <timshen@google.com>

* include/std/variant: include bits/move.h for std::addressof.

From-SVN: r240001

re PR target/77476 ([AVX-512] illegal kmovb instruction on KNL)

PR target/77476
* config/i386/i386.md (isa): Add x64_avx512bw.
(*zero_extendsidi2): For alternative 11 use x64_avx512bw isa.
(kmov_isa): New mode attr.
(zero_extend<mode>di2): Use <kmov_isa> isa for the last alternative.
(*zero_extend<mode>si2): Likewise.
(*zero_extendqihi2): Use avx512dq isa for the last alternative.

* gcc.target/i386/avx512f-pr77476.c: New test.
* gcc.target/i386/avx512bw-pr77476.c: New test.
* gcc.target/i386/avx512dq-pr77476.c: New test.

From-SVN: r240000

target-supports.exp (check_effective_target_vect_simd_clones): Update comment to mention also avx512f.

* lib/target-supports.exp (check_effective_target_vect_simd_clones):
Update comment to mention also avx512f.

From-SVN: r239999

re PR sanitizer/77396 (address  sanitizer crashes if all static global variables are optimized)

PR sanitizer/77396
* asan/asan_globals.cc: Cherry-pick upstream r280657.

* g++.dg/asan/pr77396-2.C: New test.

From-SVN: r239998

ChangeLog formatting fixes.

From-SVN: r239997

variant (_Variant_storage::_M_storage()): Use std::addressof instead of operator& to take address.

2016-09-05  Mikhail Strelnikov  <mikhail.strelnikov@gmail.com>

* include/std/variant (_Variant_storage::_M_storage()): Use std::addressof
instead of operator& to take address.

From-SVN: r239996

invoke.texi (SPU Options): nops -> NOPs.

* doc/invoke.texi (SPU Options): nops -> NOPs.
(x86 Options): Ditto.

From-SVN: r239995

re PR middle-end/77475 (unnecessary or misleading context in reporting command line problems)

PR middle-end/77475
* toplev.c (process_options): Temporarily set input_location
to UNKNOWN_LOCATION around targetm.target_option.override () call.

From-SVN: r239994

* sv.po: Update.

From-SVN: r239992

re PR target/77452 (ICE: in plus_constant, at explow.c:87 with -fno-split-wide-types -mavx512f --param=max-combine-insns=2)

PR rtl-optimization/77452
* explow.c (plus_constant) <case MEM>: Extract scalar constant from
inner-mode reference to a CONST_VECTOR constant in the constant pool.

testsuite/ChangeLog:

PR rtl-optimization/77452
* gcc.target/i386/pr77452.c: New test.

From-SVN: r239989

re PR c/77423 (-Wlogical-not-parentheses false positive for bitwise expression with _Bool operands)

PR c/77423
* doc/invoke.texi: Update -Wlogical-not-parentheses documentation.

* c-common.c (bool_promoted_to_int_p): New function.
(expr_has_boolean_operands_p): New function.
(warn_logical_not_parentheses): Return if expr_has_boolean_operands_p.
(maybe_warn_bool_compare): Use bool_promoted_to_int_p.

* c-c++-common/Wlogical-not-parentheses-3.c: New test.

From-SVN: r239988

re PR other/77421 (Bugs found in GCC with the help of PVS-Studio)

PR other/77421
* gensupport.c (alter_output_for_subst_insn): Remove redundant
*insn_out == '*' test.  Don't copy unnecessary to yet another
memory buffer, and don't leak it.

From-SVN: r239987

re PR rtl-optimization/77425 (Pointer test follows dereference in sched-int.h)

PR rtl-optimization/77425
* ipa-devirt.c (get_odr_type): Set val->id unconditionally.

From-SVN: r239986

Daily bump.

From-SVN: r239985

re PR fortran/77391 (gfortran allows CHARACTER(LEN=:),PARAMETER:: STRING='constant'   buts does not report it as an extension)

2016-09-04  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77391
* resolve.c (deferred_requirements): New function to check F2008:C402.
(resolve_fl_variable,resolve_fl_parameter): Use it.

2016-09-04  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77391
* gfortran.dg/pr77391.f90: New test.

From-SVN: r239982

re PR web/50642 (onlinedocs formated text too small to read)

PR documentation/50642
* update_web_docs_svn (CSS): Introduce.
Have generated files refer to it.

From-SVN: r239981

update_web_docs_svn (CSS): Introduce.

* update_web_docs_svn (CSS): Introduce.
Have generated files refer to it.

From-SVN: r239980

re PR fortran/77460 (ICE when summing an overflowing array)

2016-09-04  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77460
* simplify.c (simplify_transformation_to_scalar):  On error, result
may be NULL, simply return.

2016-09-04  Steven G. Kargl  <kargl@gcc.gnu.org>

PR fortran/77460
* gfortran.dg/pr77460.f90: New test.

From-SVN: r239979

ffi.c (ffi_struct_type): Put type declaration on separate line.

* src/pa/ffi.c (ffi_struct_type): Put type declaration on separate line.
(ffi_prep_args_pa32): Likewise.
(ffi_size_stack_pa32): Likewise.
(ffi_prep_cif_machdep): Likewise.
(ffi_call): Likewise.  Rename to ffi_call_int.  Add closure argument
and update call to ffi_call_pa32.
(ffi_call, ffi_call_go, ffi_prep_go_closure): New.
(ffi_closure_inner_pa32): Update to handle go closures.
* src/pa/ffitarget.h (FFI_GO_CLOSURES): Define.
* src/pa/hpux32.S (ffi_call_pa32): Pass go closure argument in static
chain register (%ret1).
(ffi_closure_pa32): Set closure type argument to zero.
(ffi_go_closure_pa32): New function.  Add unwind data for it.
* src/pa/linux.S: Likewise.  Use cfi directives for unwind data.
* testsuite/libffi.go/static-chain.h (STATIC_CHAIN_REG): Define for
hppa.

From-SVN: r239978

re PR fortran/71902 (Unneeded temporary on reallocatable character assignment)

2016-09-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/71902
* frontend-passes.c (realloc_string_callback): Also check for the
lhs being deferred.  Name temporary variable "realloc_string".

2016-09-04  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/71902
* gfortran.dg/dependency_47.f90:  New test.
* gfortran.dg/dependency_49.f90:  New test.

From-SVN: r239977

inclhack.def (hpux_longjmp): Adjust select regular expression.

* inclhack.def (hpux_longjmp): Adjust select regular expression.
* fixincl.x: Regenerate.

From-SVN: r239976

Revert "Replace error_at with assert in build_va_arg"

2016-09-04  Tom de Vries  <tom@codesourcery.com>

revert:
2016-08-29  Tom de Vries  <tom@codesourcery.com>

* c-common.c (build_va_arg): Replace first argument type error
with assert.

From-SVN: r239975

Daily bump.

From-SVN: r239974

ubsan.c (ubsan_use_new_style_p): Fix check for empty string.

gcc/
* ubsan.c (ubsan_use_new_style_p): Fix check for empty string.

From-SVN: r239971

re PR c/65467 ([libgomp] sorry, unimplemented: '_Atomic' with OpenMP)

PR c/65467
* gcc.dg/gomp/_Atomic-4.c: Require vect_simd_clones effective target.

From-SVN: r239970

Daily bump.

From-SVN: r239969

avx512f-klogic-2.c: Fix operand calculation order.

gcc/testsuite/
  * gcc.target/i386/avx512f-klogic-2.c: Fix operand calculation order.

From-SVN: r239966

Add -fdiagnostics-generate-patch

gcc/ChangeLog:
* common.opt (fdiagnostics-generate-patch): New option.
* diagnostic.c: Include "edit-context.h".
(diagnostic_initialize): Initialize context->edit_context_ptr.
(diagnostic_finish): Delete context->edit_context_ptr.
(diagnostic_report_diagnostic): Add fix-it hints from the
diagnostic to context->edit_context_ptr, if any.
* diagnostic.h (class edit_context): Add forward decl.
(struct diagnostic_context): Add field "edit_context_ptr".
* doc/invoke.texi (Diagnostic Message Formatting Options): Add
-fdiagnostics-generate-patch.
(-fdiagnostics-generate-patch): New item.
* toplev.c: Include "edit-context.h".
(process_options): Set global_dc->edit_context_ptr to a new
edit_context if the options need one.
(toplev::main): Handle -fdiagnostics-generate-patch by using
global_dc->edit_context_ptr.

gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic-test-show-locus-generate-patch.c: New
test case.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add
diagnostic-test-show-locus-generate-patch.c to the sources
for diagnostic_plugin_test_show_locus.c.

From-SVN: r239965

re PR c/65467 ([libgomp] sorry, unimplemented: '_Atomic' with OpenMP)

PR c/65467
* gimplify.c (gimplify_adjust_omp_clauses_1): Diagnose implicit
map and firstprivate clauses on target construct for _Atomic
qualified decls.
(gimplify_adjust_omp_clauses): Diagnose explicit firstprivate clauses
on target construct for _Atomic qualified decls.
* omp-low.c (use_pointer_for_field): Return true for _Atomic qualified
decls.
* omp-simd-clone.c (simd_clone_clauses_extract): Warn and give up for
_Atomic qualified arguments not mentioned in uniform clause.
c/
* c-parser.c (c_parser_declspecs): Don't sorry about _Atomic if
flag_openmp.
(c_parser_omp_variable_list): Use convert_lvalue_to_rvalue
instead of mark_exp_read on low_bound/length expression.
(c_parser_omp_clause_num_gangs, c_parser_omp_clause_num_threads,
c_parser_omp_clause_num_tasks, c_parser_omp_clause_grainsize,
c_parser_omp_clause_priority, c_parser_omp_clause_hint,
c_parser_omp_clause_num_workers, c_parser_oacc_shape_clause,
c_parser_oacc_clause_tile, c_parser_omp_clause_schedule,
c_parser_omp_clause_vector_length, c_parser_omp_clause_num_teams,
c_parser_omp_clause_thread_limit, c_parser_omp_clause_aligned,
c_parser_omp_clause_linear, c_parser_omp_clause_safelen,
c_parser_omp_clause_simdlen, c_parser_omp_clause_device,
c_parser_omp_clause_dist_schedule): Use convert_lvalue_to_rvalue
instead of mark_expr_read.
(c_parser_omp_declare_reduction): Reject _Atomic qualified types.
* c-objc-common.h (LANG_HOOKS_OMP_CLAUSE_COPY_CTOR,
LANG_HOOKS_OMP_CLAUSE_ASSIGN_OP): Redefine.
* c-tree.h (c_omp_clause_copy_ctor): New prototype.
* c-typeck.c (handle_omp_array_sections_1): Diagnose _Atomic qualified
array section bases outside of depend clause, for depend clause
use convert_lvalue_to_rvalue on the base.
(c_finish_omp_clauses): Reject _Atomic qualified vars in reduction,
linear, aligned, map, to and from clauses.
(c_omp_clause_copy_ctor): New function.
c-family/
* c-omp.c (c_finish_omp_atomic): Reject _Atomic qualified expressions.
(c_finish_omp_for): Reject _Atomic qualified iterators.
testsuite/
* gcc.dg/gomp/_Atomic-1.c: New test.
* gcc.dg/gomp/_Atomic-2.c: New test.
* gcc.dg/gomp/_Atomic-3.c: New test.
* gcc.dg/gomp/_Atomic-4.c: New test.
* gcc.dg/gomp/_Atomic-5.c: New test.

From-SVN: r239964

Introduce class edit_context

gcc/ChangeLog:
* Makefile.in (OBJS-libcommon): Add edit-context.o.
* diagnostic-color.c (color_dict): Add "diff-filename",
"diff-hunk", "diff-delete", and "diff-insert".
(parse_gcc_colors): Update default value of GCC_COLORS in comment
to reflect above changes.
* doc/invoke.texi (-fdiagnostics-color): Update description of
default GCC_COLORS, and of the supported capabilities.
* edit-context.c: New file.
* edit-context.h: New file.
* input.c (struct fcache): Add field "missing_trailing_newline".
(diagnostics_file_cache_forcibly_evict_file): Initialize it to
true.
(add_file_to_cache_tab): Likewise.
(fcache::fcache): Likewise.
(get_next_line): Update c->missing_trailing_newline.
(location_missing_trailing_newline): New function.
* input.h (location_missing_trailing_newline): New decl.
* selftest-run-tests.c (selftest::run_tests): Call
edit_context_c_tests.
* selftest.h (edit_context_c_tests): New decl.

libcpp/ChangeLog:
* include/line-map.h (rich_location::seen_impossible_fixit_p): New
accessor.

From-SVN: r239963

re PR tree-optimization/77444 (Bogus assignments in cand_value_at)

PR tree-optimization/77444
* tree-ssa-loop-ivopts.c (cand_value_at): For pointers use sizetype
as steptype, remove redundant initialization.

Co-Authored-By: Richard Biener <rguenther@suse.de>
From-SVN: r239962

re PR sanitizer/77396 (address  sanitizer crashes if all static global variables are optimized)

PR sanitizer/77396
* sanopt.c: Include gimple-ssa.h, tree-phinodes.h and ssa-iterators.h.
(sanopt_optimize_walker): Optimize away
__asan_before_dynamic_init (...) followed by
__asan_after_dynamic_init () without intervening memory loads/stores.
* ipa-pure-const.c (special_builtin_state): Handle
BUILT_IN_ASAN_BEFORE_DYNAMIC_INIT and
BUILT_IN_ASAN_AFTER_DYNAMIC_INIT.

* decl2.c (do_static_initialization_or_destruction): Only
call asan_dynamic_init_call if INITP is true.

* g++.dg/asan/pr77396.C: New test.

From-SVN: r239961

cfg.c (free_original_copy_tables): Replace second assignment of bb_copy = NULL by bb_original = NULL.

2016-09-02  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* cfg.c (free_original_copy_tables): Replace second assignment of
bb_copy = NULL by bb_original = NULL.

From-SVN: r239960

re PR other/77421 (Bugs found in GCC with the help of PVS-Studio)

PR other/77421
* config/i386/i386.c (ix86_expanded_args_builtin): Remove redundant
assignment added in r216794.

From-SVN: r239959

Improvements to typed_splay_tree

This patch adds foreach, max and min methods to
class typed_splay_tree, along with the start of a selftest
suite.

gcc/ChangeLog:
* Makefile.in (OBJS): Add typed-splay-tree.o.
* selftest-run-tests.c (selftest::run_tests): Call
typed_splay_tree_c_tests.
* selftest.h (typed_splay_tree_c_tests): New decl.
* typed-splay-tree.c: New file.
* typed-splay-tree.h (typed_splay_tree::foreach_fn): New typedef.
(typed_splay_tree::max): New method.
(typed_splay_tree::min): New method.
(typed_splay_tree::foreach): New method.
(typed_splay_tree::closure): New struct.
(typed_splay_tree::inner_foreach_fn): New function.

From-SVN: r239958

Use setrlimit for testing libstdc++ in cross toolchains

* acinclude.m4 (GLIBCXX_CONFIGURE_TESTSUITE): Check for presence of
setrlimit on both native and cross targets.
* configure: Regenerate.

From-SVN: r239955

ipa-cp.c (ipcp_store_bits_results): Change option name from -fipa-cp-bit to -fipa-bit-cp.

2016-09-02  Prathamesh Kulkarni  <prathamesh.kulkarni@linaro.org>

* ipa-cp.c (ipcp_store_bits_results): Change option name from
-fipa-cp-bit to -fipa-bit-cp.

From-SVN: r239954

PR tree-optimization/71831 - __builtin_object_size poor results with no

PR tree-optimization/71831 - __builtin_object_size poor results with no
optimization

gcc/testsuite/ChangeLog:

PR tree-optimization/71831
* gcc.dg/builtin-object-size-16.c: New test.
* gcc.dg/builtin-object-size-17.c: New test.

gcc/ChangeLog:

PR tree-optimization/71831
* tree-object-size.h: Return bool instead of the size and add
argument for the size.
* tree-object-size.c (compute_object_offset): Update signature.
(addr_object_size): Same.
(compute_builtin_object_size): Return bool instead of the size
and add argument for the size.  Handle POINTER_PLUS_EXPR when
optimization is disabled.
(expr_object_size): Adjust.
(plus_stmt_object_size): Adjust.
(pass_object_sizes::execute): Adjust.
* builtins.c (fold_builtin_object_size): Adjust.
* doc/extend.texi (Object Size Checking): Update.
* ubsan.c (instrument_object_size): Adjust.

From-SVN: r239953

Daily bump.

From-SVN: r239952

c-ada-spec.c (dump_ada_function_declaration): Increase buffer size to guarantee it fits the output of the formatted function...

gcc/c-family/ChangeLog:

* c-ada-spec.c (dump_ada_function_declaration): Increase buffer
size to guarantee it fits the output of the formatted function
regardless of its arguments.

gcc/cp/ChangeLog:

* mangle.c: Increase buffer size to guarantee it fits the output
of the formatted function regardless of its arguments.

gcc/go/ChangeLog:

* gofrontend/expressions.cc: Increase buffer size to guarantee
it fits the output of the formatted function regardless of its
arguments.

gcc/java/ChangeLog:

* decl.c (give_name_to_locals): Increase buffer size to guarantee
it fits the output of the formatted function regardless of its
arguments.
* mangle_name.c (append_unicode_mangled_name): Same.

gcc/ChangeLog:

* genmatch.c (parser::parse_expr): Increase buffer size to guarantee
it fits the output of the formatted function regardless of its
arguments.
* gcc/genmodes.c (parser::parse_expr): Same.
* gimplify.c (gimplify_asm_expr): Same.
* passes.c (pass_manager::register_one_dump_file): Same.
* print-tree.c (print_node): Same.

From-SVN: r239949

rs6000: Rename 110 -> VSCR_REGNO

* config/rs6000/altivec.md: Use VSCR_REGNO instead of 110 throughout.

From-SVN: r239948