* gcc-interface/ada-tree.h (DECL_RETURN_VALUE_P): New macro.
	* gcc-interface/gigi.h (gigi): Remove useless attribute.
	(gnat_gimplify_expr): Likewise.
	(gnat_to_gnu_external): Declare.
	* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Constant>: Factor out
	code dealing with the expression of external constants into...
	Invoke gnat_to_gnu_external instead.
	<E_Variable>: Invoke gnat_to_gnu_external to translate renamed objects
	when not for a definition.  Deal with COMPOUND_EXPR and variables with
	DECL_RETURN_VALUE_P set for renamings and with the case of a dangling
	'reference to a function call in a renaming.  Remove obsolete test and
	adjust associated comment.
	* gcc-interface/trans.c (Call_to_gnu): Set DECL_RETURN_VALUE_P on the
	temporaries created to hold the return value, if any.
	(gnat_to_gnu_external): ...this.  New function.
	* gcc-interface/utils.c (create_var_decl): Detect a constant created
	to hold 'reference to function call.
	* gcc-interface/utils2.c (build_unary_op) <ADDR_EXPR>: Add folding
	for COMPOUND_EXPR in the DECL_RETURN_VALUE_P case.

From-SVN: r233804

2016-02-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/69720
	* tree-vect-loop.c (get_initial_def_for_reduction): Avoid
	the adjustment_def path for possibly vectorized defs.
	(vect_create_epilog_for_reduction): Handle vectorized initial
	defs properly.

	* gcc.dg/vect/vect-outer-pr69720.c: New testcase.

From-SVN: r233803

From-SVN: r233801

2016-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/68147
	PR fortran/47674
	* frontend-passes.c (realloc_string_callback): Don't set
	walk_subtrees.

2016-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/68147
	PR fortran/47674
	* gfortran.dg/realloc_on_assign_26.f90:  New test case.

From-SVN: r233797

2016-02-28  Thomas Koenig  <tkoenig@gcc.gnu.org>

	* dump-parse-tree.c (show_code_node):  Print association
	list of a block if present.  Handle EXEC_END_BLOCK.

From-SVN: r233796

2016-02-28  Harald Anlauf <anlauf@gmx.de>
	    Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/56007
	* match.c (gfc_match_iterator): Add diagnostic for array variable
	as do loop index.

	* gfortran.dg/coarray_8.f90: Adjust error message.
	* gfortran.dg/pr56007.f90: New test.
	* gfortran.dg/pr56007.f: New test.

Co-Authored-By: Jerry DeLisle <jvdelisle@gcc.gnu.org>

From-SVN: r233795

	PR tree-optimization/69989
	* gcc.dg/torture/pr69989.c: New test.

From-SVN: r233792

From-SVN: r233791

2016-02-28  Harald Anlauf  <anlauf@gmx.de>

	PR fortran/60126
	* gfortran.dg/pr60126.f90: New test.

From-SVN: r233790

	2016-02-26  Richard Biener  <rguenther@suse.de>
		    Jeff Law  <law@redhat.com>

	PR tree-optimization/69740
	* cfghooks.c (remove_edge): Request loop fixups if we delete
	an edge that might turn an irreducible loop into a natural
	loop.

	Revert
	2016-02-26  Richard Biener  <rguenther@suse.de>
		    Jeff Law  <law@redhat.com>

	PR tree-optimization/69740
	* gcc.c-torture/compile/pr69740-1.c: New test.
	* gcc.c-torture/compile/pr69740-2.c: New test.

From-SVN: r233787

From-SVN: r233786

	Fix ChangeLogs

From-SVN: r233783

2016-02-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/69110
	* io.c (gfc_match_open): Check that open status is an expression
	constant before comparing string to 'scratch' with NEWUNIT.

	* gfortran.dg/newunit_4.f90: New test.

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

From-SVN: r233782

	PR target/69613
	PR rtl-optimization/69886
	* gcc.dg/torture/pr69886.c: Add -w -Wno-psabi to dg-options.
	* gcc.dg/torture/pr69613.c: Likewise.  Guard -mavx with avx_runtime
	target.

From-SVN: r233781

From-SVN: r233779

	PR rtl-optimization/69896
	* tree-vect-generic.c (get_compute_type): Avoid single element
	vector types.

From-SVN: r233777

From-SVN: r233775

Rename the tuning option and related functions to enable the Newton series for the reciprocal square root to reflect its approximative characteristic.

gcc/
	* config/aarch64/aarch64-protos.h (aarch64_emit_swrsqrt): Rename
	function to "aarch64_emit_approx_rsqrt".
	* config/aarch64/aarch64-tuning-flags.def: Rename tuning flag to
	AARCH64_EXTRA_TUNE_APPROX_RSQRT.
	* config/aarch64/aarch64.c (exynosm1_tunigs): Use new flag name.
	(xgene1_tunings): Likewise.
	(use_rsqrt_p): Likewise.
	(aarch64_emit_swrsqrt): Use new function name.
	* config/aarch64/aarch64-simd.md (aarch64_rsqrts_*): Likewise.
	* config/aarch64/aarch64.opt (mlow-precision-recip-sqrt): Reword the
	text explaining this option.
	* doc/invoke.texi (-mlow-precision-recip-sqrt): Likewise.

From-SVN: r233772

PR tree-optimization/15826 - don't use "if" to extract a single bit
	bit-field
2016-02-26  Martin Sebor  <msebor@redhat.com>

        PR tree-optimization/15826
        * gcc.dg/tree-ssa/pr15826.c: New test.

From-SVN: r233771

	PR target/69969
	* config/rs6000/rs6000.c (rs6000_option_override_internal): Don't
	complain about -mallow-movmisalign without -mvsx if
	TARGET_ALLOW_MOVMISALIGN was not set explicitly.

	* gcc.target/powerpc/pr69969.c: New test.

From-SVN: r233767

gcc/testsuite/ChangeLog:
2016-02-26  Martin Sebor  <msebor@redhat.com>

	PR c++/15766
	* g++.old-deja/g++.other/decl5.C: Add a test case.

From-SVN: r233765

2016-02-26  Joel Sherrill <joel@rtems.org>

	* config-list.mk: Add aarch64-rtems and x86_64-rtems

From-SVN: r233763

2016-02-26  Joel Sherrill <joel@rtems.org>

	* config.host: Add x86_64-*-rtems*.

From-SVN: r233762

2016-02-26  Joel Sherrill <joel@rtems.org>

	* config.gcc: Add x86_64-*-rtems*.
	* gcc/config/i386/rtems-64.h: New file.

From-SVN: r233761

2016-02-26  Joel Sherrill <joel@rtems.org>

	* config.gcc: Add aarch64-*-rtems*.
	* gcc/config/aarch64/rtems.h: New file.

From-SVN: r233760

2016-02-26  Joel Sherrill <joel@rtems.org>

	* libgcc/config.host: Add aarch64-*-rtems*.

From-SVN: r233759

	PR c++/69958
	* pt.c (make_argument_pack): New.
	(tsubst_copy) [SIZEOF_EXPR]: Handle partial expansion.
	(tsubst_copy_and_build): Likewise.

From-SVN: r233758

2016-02-26  Keith McDaniel <k.allen.mcdaniel@gmail.com>
	    Martin Jambor  <mjambor@suse.cz>

	* testsuite/lib/libgomp.exp
	(check_effective_target_offload_device_shared_as): New proc.
	* testsuite/libgomp.c++/declare_target-1.C: New test.


Co-Authored-By: Martin Jambor <mjambor@suse.cz>

From-SVN: r233757

2016-02-26  Paul E. Murphy  <murphyp@linux.vnet.ibm.com>
	    Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/sfp-machine.h (_FP_DECL_EX): Declare _fpsr as a
	union of u64 and double.
	(FP_TRAPPING_EXCEPTIONS): Return a bitmask of trapping exceptions.
	(FP_INIT_ROUNDMODE): Read the fpscr instead of writing a mystery
	value.
	(FP_ROUNDMODE): Update the usage of _fpscr.


Co-Authored-By: Bill Schmidt <wschmidt@linux.vnet.ibm.com>

From-SVN: r233756

Some DImode rotate-right-and-mask can be implemented best with a rlwinm
instruction: those that could be a lshiftrt instead of a rotatert, while
the mask is not right-aligned.  Why the rotate in the testcase is not
optimised to a plain shift is another question, but we need to handle
it here anyway.  We compute the shift amount for a 64-bit rotate.  This
is 32 too high in this case; if we print using %h that is masked out (and
this doesn't silently let through invalid instructions, everything is
checked by rs6000_is_valid_shift_mask which is much more thorough).


	PR target/69946
	* config/rs6000/rs6000.c (rs6000_insn_for_shift_mask): Print rlwinm
	shift amount using %h.  Add comment.

gcc/testsuite/
	* gcc.target/powerpc/pr69946.c: New file.

From-SVN: r233755

re PR tree-optimization/69740 (gcc ICE at -O2 and above on valid code on x86_64-linux-gnu in "verify_loop_structure")

	PR tree-optimization/69740
	* cfghooks.c (remove_edge): Request loop fixups if we delete
	an edge that might turn an irreducible loop into a natural
	loop.

        PR tree-optimization/69740
	* gcc.c-torture/compile/pr69740-1.c: New test.
	* gcc.c-torture/compile/pr69740-2.c: New test.

Co-Authored-By: Jeff Law <law@redhat.com>

From-SVN: r233754

2016-02-26  Martin Jambor  <mjambor@suse.cz>

	PR middle-end/69920
	* tree-sra.c (sra_modify_assign): Do not remove loads of
	uninitialized aggregates to SSA_NAMEs.

testsuite/
	* gcc.dg/torture/pr69932.c: New test.
	* gcc.dg/torture/pr69936.c: Likewise.

From-SVN: r233753

This fixes a wrong code generation problem with the splitters introduced
with that patch: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg01840.html

The target operand is used as temporary.  This fails if it matches the
source of the left shift which is read after writing the temporary.

Thanks to Dominik for debugging it and thanks to Richard for the fix!

Bootstrapped and regtested on s390x with-arch=z13.

Bye,

-Andreas-

gcc/ChangeLog:

2016-02-26  Richard Henderson  <rth@redhat.com>

	PR target/69709
	* config/s390/s390.md (risbg and risbgn splitters): Allocate new
	pseudo in case the target rtx matches the source of the left
	shift.

gcc/testsuite/ChangeLog:

2016-02-26  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/69709
	* gcc.target/s390/pr69709.c: New test.

From-SVN: r233752

2016-02-26  Martin Jambor  <mjambor@suse.cz>

	PR hsa/69568
	* hsa.h (hsa_type_packed_p): Declare.
	* hsa.c (hsa_type_packed_p): New function.
	* hsa-gen.c (mem_type_for_type): Use unsigned type for packed
	loads.
	(gen_hsa_insns_for_store): Use hsa_type_packed_p.
	* hsa-brig.c (emit_basic_insn): Likewise.

From-SVN: r233751

2016-02-26  Martin Jambor  <mjambor@suse.cz>

	pr hsa/69674
	* hsa-gen.c (gen_hsa_phi_from_gimple_phi): Use proper hsa type for
	pointers.
	(gen_hsa_addr): Allow integer constants in TMR_INDEX2.

From-SVN: r233750

2016-02-26  Martin Jambor  <mjambor@suse.cz>

	* hsa.h (is_a_helper): New overload for hsa_op_immed for
	hsa_op_with_type operands.
	(hsa_unsigned_type_for_type): Declare.
	* hsa.c (hsa_unsigned_type_for_type): New function.
	* hsa-gen.c (gen_hsa_binary_operation): Use hsa_unsigned_type_for_type.
	(gen_hsa_insns_for_operation_assignment): Satisfy constrains of
	the finalizer.  Do not emit extra move.

From-SVN: r233749

2016-02-26  Martin Jambor  <mjambor@suse.cz>

	* hsa-gen.c (gen_hsa_ternary_atomic_for_builtin): Fail in presence of
	atomic operations in private segment.

From-SVN: r233748

	PR go/69966
    syscall: Add new Getsockopt functions.
    
    Add GetsockoptICMPv6Filter, GetsockoptIPv6MTUInfo, GetsockoptUcred as
    appropriate.  These functions exist in the master library.
    
    For GCC PR 69966.

    Reviewed-on: https://go-review.googlesource.com/19960

From-SVN: r233747

2016-02-26  Martin Jambor  <mjambor@suse.cz>

	* omp-low.c (grid_find_ungridifiable_statement): Store problematic
	statements to wi->info.  Also disallow omp simd constructs.
	(grid_target_follows_gridifiable_pattern): Use wi.info to dump reason
	for not gridifying.  Dump special string for omp_for.

From-SVN: r233746

[AArch64] Set TREE_TARGET_GLOBALS in aarch64_set_current_function when new tree is the default node to recalculate optab availability

	PR target/69245
	* config/aarch64/aarch64.c (aarch64_set_current_function):
	Save/restore target globals when switching to
	target_option_default_node.

	* gcc.target/aarch64/pr69245_1.c: New test.

From-SVN: r233745