replace some manual stacks with auto_vec

gcc/ChangeLog:

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* cfganal.c (mark_dfs_back_edges): Replace manual stack with
auto_vec.
(post_order_compute): Likewise.
(inverted_post_order_compute): Likewise.
(pre_and_rev_post_order_compute_fn): Likewise.

From-SVN: r248020

allow constructing a auto_vec with a preallocation, and a possibly larger actual allocation size

This allows us to set the capacity of the vector when we construct it,
and still use a stack buffer when the size is small enough.

gcc/ChangeLog:

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* genrecog.c (int_set::int_set): Explicitly construct our
auto_vec base class.
* vec.h (auto_vec::auto_vec): New constructor.

From-SVN: r248019

allow auto_bitmap to use other bitmap obstacks

gcc/ChangeLog:

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* bitmap.h (class auto_bitmap): New constructor taking
bitmap_obstack * argument.

From-SVN: r248018

store the bitmap_head within the auto_bitmap

This gets rid of one allocation per bitmap.  Often the bitmap_head is
now on the stack, when it isn't its part of some other struct on the
heap instead of being refered to by that struct.  On 64 bit platforms
this will increase the size of such structs by 24 bytes, but its an over
all win since we don't need an 8 byte pointer pointing at the
bitmap_head.  Given that the auto_bitmap owns the bitmap_head anyway we
know there would never be a place where two auto_bitmaps would refer to
the same bitmap_head object.

gcc/ChangeLog:

2017-05-13  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* bitmap.h (class auto_bitmap): Change type of m_bits to
bitmap_head, and adjust ctor / dtor and member operators.

From-SVN: r248017

Daily bump.

From-SVN: r248016

re PR fortran/80442 (Rejects DATA statement with array slice)

2017-05-09  Nicolas Koenig  <koenigni@student.ethz.ch>

PR fortran/80442
* array.c (gfc_ref_dimen_size): Simplify stride
expression
* data.c (gfc_advance_section): Simplify start,
end and stride expressions
(gfc_advance_section): Simplify start and end
expressions
(gfc_get_section_index): Simplify start expression

2017-05-09  Nicolas Koenig  <koenigni@student.ethz.ch>

PR fortran/80442
* gfortran.dg/impl_do_var_data.f90: New Test

From-SVN: r248012

compare-elim.c (equivalent_reg_at_start): Return NULL_RTX when returned register mode doesn't match original mode.

* compare-elim.c (equivalent_reg_at_start): Return NULL_RTX
when returned register mode doesn't match original mode.

From-SVN: r248009

io.c (gfc_resolve_dt): Fix returns to bool type.

2017-05-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

* io.c (gfc_resolve_dt): Fix returns to bool type.

From-SVN: r248008

mn10300.c (mn10300_match_ccmode): Fix where we look for cc setter after the compare-elim changes.

2017-05-12  Jeff Law  <law@redhat.com>
    Jakub Jelinek  <jakub@redhat.com>

* config/mn10300/mn10300.c (mn10300_match_ccmode): Fix where
we look for cc setter after the compare-elim changes.
* config/mn10300/mn10300.md (addsi3_flags): Fix order of patterns
within the vector to match what compare-elim now expects.
(subsi3_flags, andsi3_flags, iorsi3_flags): Likewise.
(xorsi3_flags, one_cmplsi2_flags): Likewise.

* config/rx/rx.c (rx_match_ccmode): Fix where we look cc setter
after the compare-elim changes.
* config/rx/rx.md (abssi2_flags): Fix order of patterns within
the vector to match what compare-elim now expects.
(addsi3_flags, adc_flags, addsi3_flags peepholes): Likewise.
(andsi3_flags, negsi2_flags, one_cmplsi2_flags): Likewise.
(iorsi3_flags, rotlsi3_flags, rotrsi3_flags): Likewise.
(ashrsi3_flags, lshrsi3_flags, ashlsi3_flags): Likewise.
(ssaddsi3, subsi3_flags, sbb_flags, xorsi3_flags): Likewise.

* config/visium/visium.c (single_set_and_flags): Fix where
we look for cc setter after the compare-elim changes.
* config/visium/visium.md (flags_subst_logic): Fix order of patterns
with the vector to match what compare-elim now expects.
(flags_subst_arith, add<mode>3_insn_set_carry): Likewise.
(add<mode>3_insn_set_overflow, addsi3_insn_set_carry): Likewise.
(addsi3_insn_set_overflow, sub<mode>3_insn_set_carry): Likewise.
(sub<mode>3_insn_set_overflow, subsi3_insn_set_carry): Likewise.
(subsi3_insn_set_overflow, negsi2_insn_set_carry): Likewise.
(neg<mode>2_insn_set_overflow): Likewise.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r248007

BRIG FE: Fix an assertion when doing an 'lda' of
a private array offset.

From-SVN: r248006

Patch for RTL expand bug affecting aarch64 vector code.

gcc/
PR middle-end/79794
     * expmed.c (extract_bit_field_1): Add alt_rtl argument.  Before
maybe_expand_insn call, set ops[0].target.  If still set after call,
set alt_rtl.  Add extra arg to recursive calls.
(extract_bit_field): Add alt_rtl argument.  Pass to
extract_bit_field.
* expmed.h (extract_bit_field): Fix prototype.
* expr.c (emit_group_load_1, copy_blkmode_from_reg)
(copy_blkmode_to_reg, read_complex_part, store_field): Pass extra NULL
to extract_bit_field_calls.
(expand_expr_real_1): Pass alt_rtl to expand_expr_real instead of 0.
Pass alt_rtl to extract_bit_field calls.
* calls.c (store_unaligned_arguments_into_psuedos)
load_register_parameters): Pass extra NULL to extract_bit_field calls.
* optabs.c (maybe_legitimize_operand): Clear op->target when call
gen_reg_rtx.
* optabs.h (struct expand_operand): Add target bitfield.

From-SVN: r248004

Daily bump.

From-SVN: r248003

Revert revision 247926.

From-SVN: r247998

* sv.po: Update.

From-SVN: r247996

re PR testsuite/80643 (NA->FAIL: gcc.dg/pr79214.c gcc.dg/pr79222.c gcc.dg/pr79223.c gcc.dg/tree-ssa/builtins-folding-gimple-ub.c)

gcc/testsuite/ChangeLog:

PR testsuite/80643
* gfortran.dg/mvbits_7.f90: Prune diagnostic output incidental
to the purpose of the test.

From-SVN: r247993

compare-elim.c (try_eliminate_compare): Canonicalize operation with embedded compare to [(set (reg:CCM) (compare:CCM...

* compare-elim.c (try_eliminate_compare): Canonicalize
operation with embedded compare to
[(set (reg:CCM) (compare:CCM (operation) (immediate)))
 (set (reg) (operation)].

* config/i386/i386.c (TARGET_FLAGS_REGNUM): New define.

From-SVN: r247992

re PR target/80723 (FAIL gcc.target/i386/cadd.c scan assembler sbb)

PR target/80723
* config/i386/i386.c (ix86_rtx_cost) [case PLUS]: Ignore the
cost of adding a carry flag for ADC instruction.
[case MINUS]: Ignore the cost of subtracting a carry flag
for SBB instruction.

From-SVN: r247991

config.gcc (powerpc*-*-*): Add bmi2intrin.h, bmiintrin.h, and x86intrin.h

[gcc]

2017-05-12  Steven Munroe  <munroesj@gcc.gnu.org>

* config.gcc (powerpc*-*-*): Add bmi2intrin.h, bmiintrin.h,
and x86intrin.h
* config/rs6000/bmiintrin.h: New file.
* config/rs6000/bmi2intrin.h: New file.
* config/rs6000/x86intrin.h: New file.

[gcc/testsuite]

2017-05-12  Steven Munroe  <munroesj@gcc.gnu.org>

* gcc.target/powerpc/bmi-andn-1.c: New file
* gcc.target/powerpc/bmi-andn-2.c: New file.
* gcc.target/powerpc/bmi-bextr-1.c: New file.
* gcc.target/powerpc/bmi-bextr-2.c: New file.
* gcc.target/powerpc/bmi-bextr-4.c: New file.
* gcc.target/powerpc/bmi-bextr-5.c: New file.
* gcc.target/powerpc/bmi-blsi-1.c: New file.
* gcc.target/powerpc/bmi-blsi-2.c: New file.
* gcc.target/powerpc/bmi-blsmsk-1.c: new file.
* gcc.target/powerpc/bmi-blsmsk-2.c: New file.
* gcc.target/powerpc/bmi-blsr-1.c: New file.
* gcc.target/powerpc/bmi-blsr-2.c: New File.
* gcc.target/powerpc/bmi-check.h: New File.
* gcc.target/powerpc/bmi-tzcnt-1.c: new file.
* gcc.target/powerpc/bmi-tzcnt-2.c: New file.
* gcc.target/powerpc/bmi2-bzhi32-1.c: New file.
* gcc.target/powerpc/bmi2-bzhi64-1.c: New file.
* gcc.target/powerpc/bmi2-bzhi64-1a.c: New file.
* gcc.target/powerpc/bmi2-check.h: New file.
* gcc.target/powerpc/bmi2-mulx32-1.c: New file.
* gcc.target/powerpc/bmi2-mulx32-2.c: New file.
* gcc.target/powerpc/bmi2-mulx64-1.c: New file.
* gcc.target/powerpc/bmi2-mulx64-2.c: New file.
* gcc.target/powerpc/bmi2-pdep32-1.c: New file.
* gcc.target/powerpc/bmi2-pdep64-1.c: New file.
* gcc.target/powerpc/bmi2-pext32-1.c: New File.
* gcc.target/powerpc/bmi2-pext64-1.c: New file.
* gcc.target/powerpc/bmi2-pext64-1a.c: New File.

From-SVN: r247988

re PR c++/60430 (static_assert and reference to const/constexpr)

2017-05-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/60430
* g++.dg/cpp0x/pr60430.C: New.

From-SVN: r247986

tree-vrp.c (vrp_dom_walker::before_dom_childern): Push unwinding markers.

* tree-vrp.c (vrp_dom_walker::before_dom_childern): Push unwinding
markers.

* g++.dg/tree-ssa/ssa-dom-thread-4.c: Update expected output.

From-SVN: r247985

re PR middle-end/80707 (r247844 causes error: extra outgoing edge)

gcc/
PR middle-end/80707
* tree-cfg.c: Remove cfg edges of unreachable case statements.

gcc/testsuite/
PR middle-end/80707
* g++.dg/pr80707.C: New test.

From-SVN: r247984

compiler: add calling Bfunction Backend::call_expression

    Pass in the calling (containing) Bfunction when invoking the Backend
    method call_expression(), so as to handle the case where generation of
    the call forces the creation of a temp var within the calling
    function.

    Reviewed-on: https://go-review.googlesource.com/43270

From-SVN: r247981

re PR ada/80117 (Standard'Word_Size is wrong for aarch64 ILP32)

* system-linux-arm.ads (Memory_Size): Use Long_Integer'Size
instead of Word_Size.

Revert
2017-03-28  Andreas Schwab  <schwab@suse.de>

PR ada/80117
* system-linux-aarch64-ilp32.ads: New file.
* gcc-interface/Makefile.in (LIBGNAT_TARGET_PAIRS_COMMON): Rename
from LIBGNAT_TARGET_PAIRS.
(LIBGNAT_TARGET_PAIRS_32, LIBGNAT_TARGET_PAIRS_64): Define.
(LIBGNAT_TARGET_PAIRS): Use LIBGNAT_TARGET_PAIRS_COMMON, and
LIBGNAT_TARGET_PAIRS_64 or LIBGNAT_TARGET_PAIRS_32 for -mabi=lp64
or -mabi=ilp32, resp.

From-SVN: r247979

rs6000.c (rs6000_gimple_fold_builtin): Add handling for early expansion of vector divide builtins.

[gcc]

2017-05-10  Will Schmidt  <will_schmidt@vnet.ibm.com>

* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling for
early expansion of vector divide builtins.
(builtin_function_type): Add VSX_BUILTIN_UDIV_V2DI to the list of
builtins identified as having unsigned arguments.

[gcc/testsuite]

2017-05-10  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-div-float.c: New.
* gcc.target/powerpc/fold-vec-div-floatdouble.c: New.
* gcc.target/powerpc/fold-vec-div-longlong.c: New.

From-SVN: r247977

rs6000.c (gimple-fold.h): New #include.

[gcc]

2017-05-10  Will Schmidt  <will_schmidt@vnet.ibm.com>

* config/rs6000/rs6000.c (gimple-fold.h): New #include.
(rs6000_gimple_fold_builtin): Add handling for early GIMPLE
expansion of vector logical operations (and, andc, or, xor,
nor, orc, nand)

[gcc/testsuite]

2017-05-10  Will Schmidt  <will_schmidt@vnet.ibm.com>

* gcc.target/powerpc/fold-vec-logical-ands-char.c: New.
* gcc.target/powerpc/fold-vec-logical-ands-int.c: New.
* gcc.target/powerpc/fold-vec-logical-ands-longlong.c: New.
* gcc.target/powerpc/fold-vec-logical-ands-short.c: New.
* gcc.target/powerpc/fold-vec-logical-ors-char.c: New.
* gcc.target/powerpc/fold-vec-logical-ors-int.c: New.
* gcc.target/powerpc/fold-vec-logical-ors-longlong.c: New.
* gcc.target/powerpc/fold-vec-logical-ors-short.c: New.
* gcc.target/powerpc/fold-vec-logical-other-char.c: New.
* gcc.target/powerpc/fold-vec-logical-other-int.c: New.
* gcc.target/powerpc/fold-vec-logical-other-longlong.c: New.
* gcc.target/powerpc/fold-vec-logical-other-short.c: New.

From-SVN: r247976

gimple-fold.c (create_tmp_reg_or_ssa_name): Remove static declaration.

2017-05-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

[gcc]
        * gimple-fold.c (create_tmp_reg_or_ssa_name): Remove static declaration.
        * gimple-fold.h (create_tmp_reg_or_ssa_name): New prototype.

From-SVN: r247975

rs6000.c (rs6000_gimple_fold_builtin): Add handling for early GIMPLE expansion of vector multiplies.

[gcc]

2017-05-12  Will Schmidt  <will_schmidt@vnet.ibm.com>

        * config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling for
        early GIMPLE expansion of vector multiplies.

From-SVN: r247974

PR libstdc++/78939 make tuple_size<cv T> depend on tuple_size<T>

PR libstdc++/78939
* include/std/utility (tuple_size<cv T>): Only define partial
specializations when tuple_size<T>::value is valid.
* testsuite/20_util/tuple/78939.cc: New.
* testsuite/20_util/tuple/cv_tuple_size_neg.cc: New.

From-SVN: r247973

* gcc.target/i386/pr22152.c: Remove unneeded dg-additional-options.

From-SVN: r247972

[ARM] Add missing TARGET_32BIT conditional to movsi

2017-05-12  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>

    gcc/
    * config/arm/arm.md (movsi): Add TARGET_32BIT in addition to the
    TARGET_HAVE_MOVT conditional.
    (movt splitter): Likewise.

From-SVN: r247971

re PR c++/49604 (forward-declared enum's elements in class scope gets default access (class vs struct))

2017-05-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/49604
* g++.dg/cpp0x/forw_enum14.C: New.
* g++.dg/cpp0x/forw_enum15.C: Likewise.

From-SVN: r247969

runtime: fix build for non-split-stack systems

    Change memory allocation accounting for stacks to use stacks_sys,
    since that seems to be what it is for.

    Reviewed-on: https://go-review.googlesource.com/43297

From-SVN: r247967

tree-ssa-sccvn.h (has_VN_INFO): Declare.

2017-05-12  Richard Biener  <rguenther@suse.de>

* tree-ssa-sccvn.h (has_VN_INFO): Declare.
* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
Fold all stmts not inplace.

* g++.dg/tree-ssa/ssa-dse-2.C: Adjust.

From-SVN: r247966

re PR c++/67687 (ICE initializing constexpr member with constexpr constructor)

2017-05-12  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/67687
* g++.dg/cpp0x/constexpr-ice17.C: New.

From-SVN: r247964

re PR tree-optimization/80713 (recent crash in update_dep_bb)

2017-05-12  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80713
* tree-ssa-pre.c (remove_dead_inserted_code): Clear
inserted_exprs bit for not removed stmts.

* gcc.dg/torture/pr80713.c: New testcase.

From-SVN: r247963

Limit perf data buffer during profiling

With high -j parallelism the autofdo tests can randomly fail.
autofdo uses Linux perf to record profiling data.
Linux perf uses a locked perf buffer. By default it has
around 516k buffer per uid (/proc/sys/kernel/perf_event_mlock_kb).

An individual perf record tries to grab the full 516k,
which makes parallel perf record fail.

This patch limits the perf buffer for individual perf record to 8k.
With the default settings this allows a parallelism of the test
cases of 16, which is hopefully good enough

(if not would need to add some kind of semaphore, or ask
the user to increase the limit as root)

I also removed an unneeded -o perf.data option

Thanks to Marcin to finally spotting the problem.

Passes bootstrap and test on x86_64-linux. Ok for trunk?

gcc/testsuite/:

2017-05-12  Andi Kleen  <ak@linux.intel.com>

PR testsuite/77684
* lib/target-supports.exp (profopt-perf-wrapper):
Add -m8 option to increase parallelism.

From-SVN: r247962

OpenACC C front end maintenance: c_parser_oacc_single_int_clause

gcc/c/
* c-parser.c (c_parser_omp_clause_num_gangs)
(c_parser_omp_clause_num_workers)
(c_parser_omp_clause_vector_length): Merge functions into...
(c_parser_oacc_single_int_clause): ... this new function.  Adjust
all users.
gcc/testsuite/
* c-c++-common/goacc/parallel-dims-1.c: New file.
* c-c++-common/goacc/parallel-dims-2.c: Likewise.

From-SVN: r247960

Load new scanlang.exp

libitm:
* testsuite/lib/libitm.exp: Load scanlang.exp.

libgomp:
* testsuite/lib/libgomp.exp: Load scanlang.exp.

libatomic:
* testsuite/lib/libatomic.exp: Load scanlang.exp.

From-SVN: r247959

[PR middle-end/69921] Use "oacc kernels parallelized" attribute for parallelized OpenACC kernels

gcc/
PR middle-end/69921
* tree-parloops.c (create_parallel_loop): Set "oacc kernels
parallelized" attribute for parallelized OpenACC kernels.
* omp-offload.c (execute_oacc_device_lower): Use it.
gcc/testsuite/
* c-c++-common/goacc/classify-kernels-unparallelized.c: Adjust.
* c-c++-common/goacc/classify-kernels.c: Likewise.
* c-c++-common/goacc/kernels-counter-vars-function-scope.c:
Likewise.
* c-c++-common/goacc/kernels-double-reduction-n.c: Likewise.
* c-c++-common/goacc/kernels-double-reduction.c: Likewise.
* c-c++-common/goacc/kernels-loop-2.c: Likewise.
* c-c++-common/goacc/kernels-loop-3.c: Likewise.
* c-c++-common/goacc/kernels-loop-g.c: Likewise.
* c-c++-common/goacc/kernels-loop-mod-not-zero.c: Likewise.
* c-c++-common/goacc/kernels-loop-n.c: Likewise.
* c-c++-common/goacc/kernels-loop-nest.c: Likewise.
* c-c++-common/goacc/kernels-loop.c: Likewise.
* c-c++-common/goacc/kernels-one-counter-var.c: Likewise.
* c-c++-common/goacc/kernels-reduction.c: Likewise.
* gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise.
* gfortran.dg/goacc/classify-kernels.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-2.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-data-2.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-data-enter-exit-2.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-data-enter-exit.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-data-update.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-data.f95: Likewise.
* gfortran.dg/goacc/kernels-loop-n.f95: Likewise.
* gfortran.dg/goacc/kernels-loop.f95: Likewise.

From-SVN: r247957

Use "oacc kernels" attribute for OpenACC kernels

gcc/
* omp-expand.c (expand_omp_target) <GF_OMP_TARGET_KIND_OACC_KERNELS>:
Set "oacc kernels" attribute.
* omp-general.c (oacc_set_fn_attrib): Remove is_kernel formal
parameter.  Adjust all users.
(oacc_fn_attrib_kernels_p): Remove function.
* omp-offload.c (execute_oacc_device_lower): Look for "oacc
kernels" attribute instead of calling oacc_fn_attrib_kernels_p.
* tree-ssa-loop.c (gate_oacc_kernels): Likewise.
* tree-parloops.c (create_parallel_loop): If oacc_kernels_p,
assert "oacc kernels" attribute is set.
gcc/testsuite/
* c-c++-common/goacc/classify-kernels-unparallelized.c: Adjust.
* c-c++-common/goacc/classify-kernels.c: Likewise.
* c-c++-common/goacc/classify-parallel.c: Likewise.
* c-c++-common/goacc/classify-routine.c: Likewise.
* gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise.
* gfortran.dg/goacc/classify-kernels.f95: Likewise.
* gfortran.dg/goacc/classify-parallel.f95: Likewise.
* gfortran.dg/goacc/classify-routine.f95: Likewise.

From-SVN: r247955

Test cases to check OpenACC offloaded function's attributes and classification

gcc/testsuite/
* c-c++-common/goacc/classify-kernels-unparallelized.c: New file.
* c-c++-common/goacc/classify-kernels.c: Likewise.
* c-c++-common/goacc/classify-parallel.c: Likewise.
* c-c++-common/goacc/classify-routine.c: Likewise.
* gfortran.dg/goacc/classify-kernels-unparallelized.f95: Likewise.
* gfortran.dg/goacc/classify-kernels.f95: Likewise.
* gfortran.dg/goacc/classify-parallel.f95: Likewise.
* gfortran.dg/goacc/classify-routine.f95: Likewise.

From-SVN: r247953

Typo fixes for "Don't assume __secure_getenv is available"

libgfortran/
* runtime/environ.c (weak_secure_getenv): Fix "__secure_gettime"
vs. "__secure_getenv" typo.
(secure_getenv): Fix "HAVE__SECURE_GETENV"
vs. "HAVE___SECURE_GETENV" typo.

From-SVN: r247952

mksigtab.sh: recurse once when adding signals to SIGLIST

    On MIPS, SIGABRT is defined like this:
     #define SIGIOT   6
     #define SIGABRT  SIGIOT

    This breaks addsig which tries to append __SIGIOT_ to SIGLIST. Signal
    number 6 is later added to the output and go complains about a
    duplicate signal number.

    Fix by recursing once when obtaining the signal number from
    gen-sysinfo.go if the signal is defined as an alias of another signal.
    Also modify the sed expression to 's/.* = //' which is equivalent to
    the original expression but is less misleading given that it might not
    match a number.

    Reviewed-on: https://go-review.googlesource.com/43252

From-SVN: r247948

os: use opendir64 and closedir64 on AIX

    When using readdir64 on AIX, we must also use
    opendir64 and closedir64.

    Issue golang/go#19200

    Reviewed-on: https://go-review.googlesource.com/43251

From-SVN: r247947

* lib/gcc-dg.exp (schedule-cleanups): Add lang dump capability.

From-SVN: r247946

Daily bump.

From-SVN: r247945

re PR go/64238 (ICE in get_partitioning_class, at symtab.c:1775)

PR go/64238
* go-gcc.cc (Gcc_backend::implicit_variable_reference): Set
DECL_EXTERNAL, clear TREE_STATIC.

From-SVN: r247937

rs6000-c: Add support for built-in functions vector unsigned char vec_popcnt (vector...

gcc/ChangeLog:

2017-05-11  Carl Love  <cel@us.ibm.com>

* config/rs6000/rs6000-c: Add support for built-in functions
vector unsigned char vec_popcnt (vector signed char)
vector unsigned char vec_popcnt (vector unsigned char)
vector unsigned short vec_popcnt (vector signed short)
vector unsigned short vec_popcnt (vector unsigned short)
vector unsigned int vec_popcnt (vector signed int)
vector unsigned int vec_popcnt (vector unsigned int)
vector unsigned long long vec_popcnt (vector signed long long)
vector unsigned long long vec_popcnt (vector unsigned long long)
vector signed long long vec_slo (vector signed long long,
                                         vector signed char)
vector signed long long vec_slo (vector signed long long,
                                         vector unsigned char)
vector unsigned long long vec_slo (vector unsigned long long,
                                           vector signed char)
vector unsigned long long vec_slo (vector unsigned long long,
                                           vector unsigned char)
* config/rs6000/rs6000-builtin.def: Add definitions for VPOPCNTUB,
VPOPCNTUH, VPOPCNTUW, and VPOPCNTUD overloads.
* config/rs6000/altivec.h: Add define for vec_popcnt, vec_popcntb,
vec_popcnth, vec_popcntw and vec_popcntd built-in functions.
* doc/extend.texi: Update the built-in documentation file for the
new built-in functions.

gcc/testsuite/ChangeLog:

2017-05-11  Carl Love  <cel@us.ibm.com>

* gcc.target/powerpc/builtins-3-p8.c: Add tests for the new built-ins
to the test suite file.
* gcc.target/powerpc/builtins-3.c: Add tests for the new built-ins
to the test suite file.

From-SVN: r247933

attribs.h (sorted_attr_string): Move machine independent functions for target clone support from the i386 port...

2017-05-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

* attribs.h (sorted_attr_string): Move machine independent
functions for target clone support from the i386 port to common
code.  Rename ix86_function_versions to common_function_versions.
Rename make_name to make_unique_name.
(common_function_versions): Likewise.
(make_unique_name): Likewise.
(make_dispatcher_decl): Likewise.
(is_function_default_version): Likewise.
* attribs.c (attr_strcmp): Likewise.
(sorted_attr_string): Likewise.
(common_function_versions): Likewise.
(make_unique_name): Likewise.
(make_dispatcher_decl): Likewise.
(is_function_default_version): Likewise.
* config/i386/i386.c (attr_strcmp): Likewise.
(sorted_attr_string): Likewise.
(ix86_function_versions): Likewise.
(make_name): Likewise.
(make_dispatcher_decl): Likewise.
(is_function_default_version): Likewise.
(TARGET_OPTION_FUNCTION_VERSIONS): Update target function hook.

From-SVN: r247932

runtime: fix isSystemGoroutine for gccgo

    The gc toolchain decides whether a goroutine is a system goroutine by
    comparing startpc to a list of saved special PCs.  In gccgo that
    approach does not work as startpc is often a thunk that invokes the
    real function with arguments, so the thunk address never matches the
    saved special PCs.

    This patch fixes gccgo's understanding of system goroutines.  Since
    there are only a limited number of them, we simply change each one to
    mark itself as special.

    This fixes stack dumps and functions like runtime.NumGoroutine to
    behave more like gc.  It also fixes the goprint test in the gc
    testsuite.

    Reviewed-on: https://go-review.googlesource.com/43156

From-SVN: r247931

re PR fortran/78659 ([F03] Spurious "requires DTIO" reported against namelist statement)

2017-05-11  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

PR fortran/78659
* io.c (dtio_procs_present): Add new function to check for DTIO
procedures relative to I/O statement READ or WRITE.
(gfc_resolve_dt): Add namelist checks using the new function.
* resolve.c (dtio_procs_present): Remove function and related
namelist checks. (resolve_fl_namelist): Add check specific to
Fortran 95 restriction on namelist objects.

* gfortran.dg/namelist_91.f90: New test.
* gfortran.dg/namelist_92.f90: New test.
* gfortran.dg/namelist_93.f90: New test.
* gfortran.dg/namelist_94.f90: New test.

From-SVN: r247930

2017-05-11  François Dumont  <fdumont@gcc.gnu.org>

* include/bits/stl_tree.h [_GLIBCXX_INLINE_VERSION]
(_Rb_tree_impl<>): Remove _Is_pod_comparator
template parameter.

From-SVN: r247929

re PR target/80695 (gratuitous use of stxvx to store multiple pointers)

[gcc]

2017-05-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/80695
* config/rs6000/rs6000.c (rs6000_builtin_vectorization_cost):
Account for direct move costs for vec_construct of integer
vectors.

[gcc/testsuite]

2017-05-11  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

PR target/80695
* gcc.target/powerpc/pr80695-p8.c: New file.
* gcc.target/powerpc/pr80695-p9.c: New file.

From-SVN: r247928

Don't assume __secure_getenv is available

Glibc 2.17 made __secure_getenv an officially supported function, and
renamed it secure_getenv. The libgfortran configure has checked for
both of these, per
https://sourceware.org/glibc/wiki/Tips_and_Tricks/secure_getenv.

Unfortunately, while the dynamical library (libc.so) retains the
__secure_getenv symbol for backwards compatibility, the static library
(libc.a) does not. This means that a libgfortran.a compiled against an
older glibc will not work if one tries to link against a newer
libc.a. This creates problems for providing gfortran binary
distributions that work on as many target systems as possible.

Thus, retain the support for __secure_getenv but call it only via a
weak reference.

Regtested on x86_64-pc-linux-gnu.

2017-05-11  Janne Blomqvist  <jb@gcc.gnu.org>

* libgfortran.h: HAVE_SECURE_GETENV: Don't check
HAVE___SECURE_GETENV.
* environ/runtime.c (secure_getenv): Use __secure_getenv via a
        weak reference.

From-SVN: r247927

2017-05-11  François Dumont  <fdumont@gcc.gnu.org>

* include/debug/safe_container.h [_GLIBCXX_USE_CXX11_ABI]
(_Safe_container<>): Remove _IsCxx11AllocatorAware template parameter.
* include/debug/string: Adapt.

From-SVN: r247926

2017-05-11  François Dumont  <fdumont@gcc.gnu.org>

* include/debug/formatter.h [_GLIBCXX_INLINE_VERSION]
(__gnu_debug::_Error_formatter::_Parameter::_M_print_field): Remove.
(__gnu_debug::_Error_formatter::_Parameter::_M_print_description):
Remove.
(__gnu_debug::_Error_formatter::_M_format_word): Remove.
(__gnu_debug::_Error_formatter::_M_print_word): Remove.
(__gnu_debug::_Error_formatter::_M_print_string): Remove.
(__gnu_debug::_Error_formatter::_M_get_max_length): Remove.
* src/c++11/debug.cc: Adapt.
* config/abi/pre/gnu-versioned-namespace.ver: Adapt.

From-SVN: r247925

Missing Changelog

Missing Changelog
* libcp1plugin.cc (safe_pushdecl_maybe_friend): Call pushdecl.

From-SVN: r247924

cp-lang.c (get_global_decls, [...]): Move to ...

* cp-lang.c (get_global_decls, cxx_pushdecl, LANG_HOOK_GETDECLS)
LANG_HOOKS_PUSHDECL): Move to ...
* cp-objcp-common.c (cp_get_global_decls, cp_pushdec)
LANG_HOOK_DECLS, LANG_HOOKS_PUSHDECL): ... here.
* cp-objcp-common.h (cp_get_global_decls, cp_pushdecl): Declare.
((--This line, and those below, will be ignored--

M    cp/ChangeLog
M    cp/cp-lang.c
M    cp/cp-objcp-common.c
M    cp/cp-objcp-common.h

From-SVN: r247923

* libcp1plugin.cc (plugin_build_decl): Adjust add_method call.

From-SVN: r247922

re PR target/80706 (peephole2 uses uninitialized stack variables on i686)

PR target/80706
* config/i386/sync.md (UNSPEC_LDX_ATOMIC): New unspec.
(UNSPEC_STX_ATOMIC): Ditto.
(loaddi_via_sse): New insn.
(storedi_via_sse): Ditto.
(atomic_loaddi_fpu): Emit loaddi_via_sse and storedi_via_sse.
Update corresponding peephole2 patterns.
(atomic_storedi_fpu): Ditto.

testsuite/ChangeLog:

PR target/80706
* gcc.target/i386/pr80706.c: New test.

From-SVN: r247921

* config/i386/avx512fintrin.h (_mm_mask_rsqrt14_sd)
(_mm_maskz_rsqrt14_sd, _mm_mask_rsqrt14_ss, _mm_maskz_rsqrt14_ss):
New intrinsics.
* config/i386/i386-builtin.def (__builtin_ia32_rsqrt14sd_mask)
(__builtin_ia32_rsqrt14ss_mask): New builtins.
* config/i386/sse.md (rsqrt14_<mode>_mask): New pattern.

testsuite/ChangeLog:

* gcc.target/i386/avx512f-vrsqrt14sd-1.c: Test new intrinsics.
* gcc.target/i386/avx512f-vrsqrt14sd-2.c: Ditto.
* gcc.target/i386/avx512f-vrsqrt14ss-1.c: Ditto.
* gcc.target/i386/avx512f-vrsqrt14ss-2.c: Ditto.

From-SVN: r247920

* graphite-poly.c: Include dumpfile.h.

From-SVN: r247919

name-lookup.h (pushdecl): Add default friend parm.

* name-lookup.h (pushdecl): Add default friend parm.
(pushdecl_maybe_friend): Delete.
(pushdecl_top_level): Add default friend parm.
(pushdecl_top_level_maybe_friend): Delete.
* name-lookup.c (pushdecl_maybe_friend): Delete.
(pushdecl): Add is_friend parm.
(pushdecl_top_level): Add is friend_parm.
(pushdecl_top_level_maybe_friend, pushdecl_top_level_1): Delete.
(pushdecl_top_level_and_finish): Do pushing and finishing
directly.
* friend.c (do_friend): Adjust.
* pt.c (tsubst_friend_class): Adjust.

From-SVN: r247918

re PR c++/70538 (ICE on a deprecated access declaration in instantiate_template_1, at cp/pt.c:17310)

2017-05-11  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/70538
* g++.dg/cpp0x/pr70538.C: New.

From-SVN: r247917

dumpfle.h (dump_function): Declare here ...

* dumpfle.h (dump_function): Declare here ...
* tree-dump.h (dump_function): ... not here.
* dumpfile.c: #include tree-cfg.h.
(dump_function): Move here from ...
* tree-dump.c (dump_function): ... here.
* gimplify.c: #include splay-tree.h, not tree-dump.h.
* graphite-poly.c: Don't include tree-dump.h.
* cgraphclones.c: Include dumpfile.h not tree-dump.h.
* print-tree.c: Likewise.
* stor-layout.c: Likewise.
* tree-nested.c: Likewise.

c/
* gimple-parser.c: Don't #include tree-dump.h.

fortran/
* trans-decl.c: Include dumpfile.h not tree-dump.h,

From-SVN: r247916

Revert pushdecl_top_level_and_finish name change.

* name-lookup.h (pushdecl_top_level_and_finish): Resurrect old
name.
* name-lookup.c (pushdecl_top_level_and_finish): Likewise.
* decl.c (cp_make_fname_decl): Adjust.
* decl2.c (get_guard, handle_tls_init):  Adjust.
* rtti.c (get_tinfo_decl, tinfo_base_init):  Adjust.

From-SVN: r247915

pr22152.c: Fix undefined testcase.

* gcc.target/i386/pr22152.c: Fix undefined testcase.  Remove
unnecessary loop.  Run on 32-bit targets only.
(dg-options): Remove -fno-tree-sink.

From-SVN: r247914

As I will be working on X86 intrinsic equivalents for PowerPC64LE
adding myself to Write After Approval list.

2017-05-11  Steven Munroe  <munroesj@gcc.gnu.org>

* MAINTAINERS: Add myself to Write After Approval section.

From-SVN: r247913

Fix ViewCVS URLs in libstdc++ manual

* doc/xml/manual/allocator.xml: Fix ViewCVS URLs.
* doc/xml/manual/mt_allocator.xml: Likewise.
* doc/html/*: Regenerate.

From-SVN: r247911

name-lookup.c (pushdecl_outermost_localscope): Always conditionally stop timer.

* name-lookup.c (pushdecl_outermost_localscope): Always
conditionally stop timer.

From-SVN: r247910

decl.c (xref_tag_1): Don't frob ts_lambda scope here.

* decl.c (xref_tag_1): Don't frob ts_lambda scope here.
* name-lookup.c (pushtag_1): Deal with ts_lambda scope.

From-SVN: r247909

dumpfile.h (TDF_FLAGS): New.

* dumpfile.h (TDF_FLAGS): New.
* dumpfile.c (dump_start): Use TDF_FLAGS.
(dump_enable_all): Fix TDF_KIND check thinko.

From-SVN: r247908

cmpb-1.c: New test.

gcc/testsuite/ChangeLog:

2017-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* gcc.target/powerpc/cmpb-1.c: New test.
* gcc.target/powerpc/cmpb-2.c: New test.
* gcc.target/powerpc/cmpb-3.c: New test.
* gcc.target/powerpc/cmpb32-1.c: New test.
* gcc.target/powerpc/cmpb32-2.c: New test.

gcc/ChangeLog:

2017-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Add
array entries to represent two legal parameterizations of the
overloaded __builtin_cmpb function, as represented by the
P6_OV_BUILTIN_CMPB constant.
(altivec_resolve_overloaded_builtin): Add special case handling
for the __builtin_cmpb function, as represented by the
P6_OV_BUILTIN_CMPB constant.
* config/rs6000/rs6000-builtin.def (BU_P6_2): New macro.
(BU_P6_64BIT_2): New macro.
(BU_P6_OVERLOAD_2): New macro
(CMPB_32): Add 32-bit compare-bytes support for 32-bit only targets.
(CMPB): Add 64-bit compare-bytes support for 32-bit and 64-bit targets.
(CMPB): Add overload support to represent both 32-bit and 64-bit
compare-bytes function.
* config/rs6000/rs6000.c (rs6000_builtin_mask_calculate): Add
support for TARGET_CMPB.
* config/rs6000/rs6000.h: Add support for RS6000_BTM_CMPB.
* doc/extend.texi (PowerPC AltiVec Built-in Functions): Add
documentation of the __builtin_cmpb overloaded built-in function.

From-SVN: r247907

re PR tree-optimization/80705 (Incorrect code generated for profile counter updates due to SLP+LIM)

2017-05-11  Richard Biener  <rguenther@suse.de>

PR tree-optimization/80705
* tree-vect-data-refs.c (vect_analyze_data_refs): DECL_NONALIASED
bases are not vectorizable.

* gcc.dg/vect/bb-slp-pr80705.c: New testcase.

From-SVN: r247906

PR libstdc++/80285 optimize std::make_shared for -fno-rtti

PR libstdc++/80285
* include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_ti): Define
function to get unique fake std::type_info reference.
(_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Compare to
_S_ti() fake reference.
(__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Share
single implementation with or without RTTI enable.
[!__cpp_rtti]: Pass fake reference to _M_get_deleter.
* testsuite/20_util/shared_ptr/creation/alloc.cc: Change expected
allocation and deallocation counts.
* testsuite/20_util/shared_ptr/creation/single_allocation.cc: New.
* testsuite/20_util/shared_ptr/creation/single_allocation_no_rtti.cc:
New.

From-SVN: r247905

scanlang.exp: New.

* lib/scanlang.exp: New.
* lib/gcc-dg.exp: Load scanlang.exp.
* g++.dg/inherit/covariant7.C: Use scan-lang-dump.

From-SVN: r247904

GIMPLEFE: Handle invalid SSA names

gcc/testsuite/

PR testsuite/80580
* gcc.dg/gimplefe-error-6.c: New test.

gcc/c/

PR testsuite/80580
* gimple-parser.c (c_parser_parse_ssa_name): Validate SSA name base.

From-SVN: r247903

cp-tree.h (pushdecl, [...]): Move declarations to ...

* cp-tree.h (pushdecl, pushdecl_maybe_friend, pushtag)
pushtag_top_level_maybe_friend,
pushdecl_top_level_and_finish): Move declarations to ...
* name-lookup.h: ... here.  Group pushdecl variants.
(pushdecl_top_level_and_finish): Rename to ...
(pushdecl_top_level_with_init): ... here.
* decl.c (cp_make_fname_decl): Use pushdecl_top_level_with_init.
* decl2.c (get_guard, handle_tls_init): Likewise.
* rtti.c (get_tinfo_decl, tinfo_base_init): Likewise.
* lambda.c (maybe_add_lambda_conv_op): Use namespace_bindings_p.
* method.c (implicitly_declare_fn): Likewise.
* searchc (node_debug_info_needed): Likewise.
* name-lookup.c (pushdecl_top_level_and_finish): Rename to ...
(pushdecl_top_level_with_init): ... here.
(pop_everything): Use namespace_bindings_p.
(--This line, and those below, will be ignored--

M    cp/ChangeLog
M    cp/method.c
M    cp/cp-tree.h
M    cp/decl.c
M    cp/lambda.c
M    cp/rtti.c
M    cp/name-lookup.c
M    cp/decl2.c
M    cp/name-lookup.h
M    cp/search.c

From-SVN: r247902

name-lookup.h (pop_binding): Rename to pop_local_binding.

* name-lookup.h (pop_binding): Rename to pop_local_binding.
(getdecls): Rename to get_local_decls.
* name-lookup.c (pop_binding): Rename to ...
(pop_local_binding): ... here.
(pop_bindings_and_leave_scope): Adjust.
(getdecls): Rename to ...
(get_local_decls): ... here.  Assert local scope.
* decl.c (poplevel): Assert not namespace.  Adjust and simplify
logic.
(store_parm_decls): Adjust get_local_decls call.
(parser.c (synthesize_implicit_template_parm): Likewise.

From-SVN: r247901

GIMPLEFE: handle invalid __MEM

gcc/c/

PR testsuite/80580
* gimple-parser.c (c_parser_gimple_postfix_expression): Handle
incorrect __MEM syntax.

gcc/testsuite/

PR testsuite/80580
* gcc.dg/gimplefe-error-5.c: New test.

From-SVN: r247900

GIMPLEFE: Handle invalid unary "*" operand type

gcc/c/

PR testsuite/80580
* gimple-parser.c (c_parser_gimple_unary_expression): Check argument
type of unary '*'.

gcc/testsuite/

PR testsuite/80580
* gcc.dg/gimplefe-error-4.c: New test.

From-SVN: r247899

tree-ssa-loop-ivopts.c (determine_set_costs): Skip non-interger when counting register pressure.

* tree-ssa-loop-ivopts.c (determine_set_costs): Skip non-interger
when counting register pressure.

From-SVN: r247898

tree-ssa-loop-ivopts.c (compare_cost_pair): New.

* tree-ssa-loop-ivopts.c (compare_cost_pair): New.
(iv_ca_more_deps): Renamed to ...
(iv_ca_compare_deps): ... this.
(iv_ca_extend): Extend iv_ca if NEW_CP is cheaper than OLD_CP.

From-SVN: r247897

tree-ssa-loop-ivopts.c (find_interesting_uses): Move inv vars dump to ...

* tree-ssa-loop-ivopts.c (find_interesting_uses): Move inv vars dump
to ...
(determine_group_iv_costs): ... here.
(find_inv_vars_cb): Record inv var if it's not recorded before.

From-SVN: r247896

tree-ssa-loop-ivopts.c (allow_ip_end_pos_p): Refine comments.

* tree-ssa-loop-ivopts.c (allow_ip_end_pos_p): Refine comments.
(get_shiftadd_cost): Ditto.

From-SVN: r247895

tree-ssa-address.c: Include header file.

* tree-ssa-address.c: Include header file.
(move_hint_to_base): Return TRUE if BASE_HINT is moved to memory
address.
(add_to_parts): Refactor.
(addr_to_parts): New parameter.  Update use of move_hint_to_base.
(create_mem_ref): Update use of addr_to_parts.  Re-associate addr
in new order.

From-SVN: r247894

re PR tree-optimization/53090 (suboptimal ivopt)

PR tree-optimization/53090
* tree-ssa-loop-ivopts.c (enum comp_iv_rewrite): New enum value
COMP_IV_EXPR_2.
(extract_cond_operands): Detect condition with IV on both sides
and return COMP_IV_EXPR_2.
(find_interesting_uses_cond): Add iv_use for both IVs in condition.
(rewrite_use_compare): Simplify by removing call to function
extract_cond_operands.

From-SVN: r247893

tree-ssa-loop-ivopts.c (enum comp_iv_rewrite): New.

* tree-ssa-loop-ivopts.c (enum comp_iv_rewrite): New.
(extract_cond_operands): Detect condition comparing against non-
invariant bound and return appropriate enum value.
(find_interesting_uses_cond): Update use of extract_cond_operands.
Handle its return value accordingly.
(determine_group_iv_cost_cond, rewrite_use_compare): Ditto.

From-SVN: r247892

tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Re-associate nonlinear iv_use computation in loop invariant sensitive way.

* tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Re-associate
nonlinear iv_use computation in loop invariant sensitive way.

From-SVN: r247891

tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): New.

* tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): New.
(find_iv_candidates): Call relate_compare_use_with_all_cands.

From-SVN: r247890

tree-ssa-loop-ivopts.c (struct iv_cand): New field inv_exprs.

* tree-ssa-loop-ivopts.c (struct iv_cand): New field inv_exprs.
(dump_cand): Support iv_cand.inv_exprs.
(add_candidate_1): Record invariant exprs in iv_cand.inv_exprs
for candidates.
(iv_ca_set_no_cp, iv_ca_set_cp, free_loop_data): Support
iv_cand.inv_exprs.

From-SVN: r247889

tree-ssa-loop-ivopts.c (multiplier_allowed_in_address_p): Move from ...

* tree-ssa-loop-ivopts.c (multiplier_allowed_in_address_p): Move
from ...
* tree-ssa-address.c (multiplier_allowed_in_address_p): ... to here
as local function.  Include necessary header files.
* tree-ssa-loop-ivopts.h (multiplier_allowed_in_address_p): Delete.

From-SVN: r247888

* tree-ssa-loop-ivopts.c (autoinc_possible_for_pair): Simplify.

From-SVN: r247887

tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Handle more operators...

* tree-ssa-loop-ivopts.c (force_expr_to_var_cost): Handle more
operators: TRUNC_DIV_EXPR, BIT_AND_EXPR, BIT_IOR_EXPR, LSHIFT_EXPR,
RSHIFT_EXPR and BIT_NOT_EXPR.

From-SVN: r247886

tree-ssa-loop-ivopts.c (get_loop_invariant_expr): Simplify.

* tree-ssa-loop-ivopts.c (get_loop_invariant_expr): Simplify.
(adjust_setup_cost): New parameter supporting round up adjustment.
(struct address_cost_data): Delete.
(force_expr_to_var_cost): Don't bound cost with spill_cost.
(split_address_cost, ptr_difference_cost): Delete.
(difference_cost, compare_aff_trees, record_inv_expr): Delete.
(struct ainc_cost_data): New struct.
(get_address_cost_ainc): New function.
(get_address_cost, get_computation_cost): Reimplement.
(determine_group_iv_cost_address): Record inv_expr for all uses of
a group.
(determine_group_iv_cost_cond): Call get_loop_invariant_expr.
(iv_ca_has_deps): Reimplemented to ...
(iv_ca_more_deps): ... this.  Check if NEW_CP introduces more deps
than OLD_CP.
(iv_ca_extend): Call iv_ca_more_deps.

From-SVN: r247885

tree-ssa-address.c (struct mem_address): Move to header file.

* tree-ssa-address.c (struct mem_address): Move to header file.
(valid_mem_ref_p, move_fixed_address_to_symbol): Make it global.
* tree-ssa-address.h (struct mem_address): Move from C file.
(valid_mem_ref_p, move_fixed_address_to_symbol): Declare.

From-SVN: r247884

tree-affine.h (aff_combination_type): New interface.

* tree-affine.h (aff_combination_type): New interface.
(aff_combination_zero_p): Remove static.
(aff_combination_const_p): New interface.
(aff_combination_singleton_var_p): New interfaces.

From-SVN: r247883

tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): Skip unreachable blocks and destinations.

2017-05-11  Richard Biener  <rguenther@suse.de>

* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children):
Skip unreachable blocks and destinations.
(eliminate): Move stmt removal and fixup ...
(fini_eliminate): ... here.  Skip inserted exprs.
(pass_pre::execute): Move fini_pre after fini_eliminate.
* tree-ssa-tailmerge.c: Include tree-cfgcleanup.h.
(tail_merge_optimize): Run cleanup_tree_cfg if requested by
PRE to get rid of dead code that has invalid SSA form and
split critical edges again.

From-SVN: r247882

* rtlanal.c (rtx_cost): Handle TRUNCATE between tieable modes.

From-SVN: r247881

re PR c++/80682 (__is_trivially_constructible(void, int) returns true.)

PR c++/80682

cp/

PR c++/80682
* method.c (is_trivially_xible): Reject void types.

testsuite/

PR c++/80682
* g++.dg/ext/is_trivially_constructible1.C: Add tests for void target.

From-SVN: r247880