PR tree-opt/68714

  * tree-ssa-reassoc.c (ovce_extract_ops, optimize_vec_cond_expr): New.
  (can_reassociate_p): Allow ANY_INTEGRAL_TYPE_P.
  (reassociate_bb): Use optimize_vec_cond_expr; avoid
  optimize_range_tests, attempt_builtin_copysign and attempt_builtin_powi
  on vectors.

From-SVN: r234196

	* parser.c (cp_convert_range_for): Set the type of __end separately.
	(cp_parser_perform_range_for_lookup): Allow different begin/end
	types if they are comparable.

Co-Authored-By: Jason Merrill <jason@redhat.com>

From-SVN: r234191

	PR target/70083
	* lra-lives.c (process_bb_lives): Also update biggest mode for hard
	regs.
	(lra_create_live_ranges_1): initialize hard register biggest_mode to
	VOIDmode.
	* lra-constraints.c (split_reg): For hard regs, try to find the
	biggest single-register mode used in the function.

testsuite/
	PR target/70083
	* gcc.dg/torture/pr70083.c: New test.
	* gcc.target/i386/pr70083.c: New test.

From-SVN: r234184

re PR tree-optimization/56365 (Missed opportunities for smin/smax standard name patterns when compiling as C++)

2016-03-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/56365
	* tree-ssa-phiopt.c (minmax_replacement): Handle alternate
	constants to compare against.

	* gcc.dg/tree-ssa/phi-opt-14.c: New testcase.

From-SVN: r234183

In the rs6000 port, FLOAT_REGS can contain DImode values when compiling
for 64-bit targets.  Some instructions (like "fcfid" in the testcase,
convert from integer to DP float) only work on floating point registers.
So, we do want to allow DImode in these regs.

Now, in unusual cases IRA will assign FLOAT_REGS to some allocno where
some insns cannot handle FLOAT_REGS there, so they will need a reload.
Maybe IRA can be made smarter, but it isn't doing anything wrong here,
so we should be able to handle it.

The place it goes wrong is in the output of the *ctrdi_internal[1256]
pattern: the "bdz" and "bdnz" instructions.  GCC refuses to do output
reloads on JUMP_INSNs, probably because it is hard to do, needs different
strategies than "normal" reloads do, and it cannot even be done at all
for general patterns.  So JUMP_INSNs need to be able to handle every
possible output for the register class used.

These patterns already handle writing to "c" (the base insn case), and
to "r", "m", and "c" or "l"; all those via splitters.  We just need to
handle "d" as well.  That is what this patch does.  [A predicate in one
of the splitters needs to be touched up so that the correct splitter
is used for the FLOAT_REGS case.]

But, that leaves another problem.  One of the insns that are split to
is a move from a GPR to an FPR.  That work fine on targets with direct
move (which does exactly that), i.e. power8 and up.  But older targets
need memory to do the move, and this splitter runs after reload so
it cannot allocate memory; and allocating memory beforehand for every
bdnz insn is pretty horrible as well.

This patch implements the easy part.  With it, power8 works, where it
didn't before.


	PR target/70098
	* config/rs6000/rs6000.md (*ctr<mode>_internal1, *ctr<mode>_internal2,
	*ctr<mode>_internal5, *ctr<mode>_internal6): Also allow "d" as output.
	(define_split for the GPR case): Use int_reg_operand instead of
	gpc_reg_operand for the output.

gcc/testsuite/
	PR target/70098
	* lib/target-supports.exp (check_effective_target_powerpc64_no_dm):
	New function.
	* g++.dg/pr70098.C: New testcase.

From-SVN: r234181

2016-03-14  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/70045
	* graphite-isl-ast-to-gimple.c (graphite_create_new_loop_guard): Unshare
	create_empty_if_region_on_edge argument.

	* gcc.dg/graphite/pr70045.c: New test.

From-SVN: r234177

* configure.ac (CONFIG_STATUS_DEPENDENCIES): Substitute.
* configure: Regenerate.
* Makefile.in: Regenerate.

From-SVN: r234176

From-SVN: r234175

	* config/arm/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Define.
	(STACK_CHECK_PROTECT): Likewise.
	* config/i386/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Likewise
	(STACK_CHECK_PROTECT): Likewise.
	* config/rs6000/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Likewise
	(STACK_CHECK_PROTECT): Likewise.
	* config/rs6000/vxworksae.h (STACK_CHECK_PROTECT): Likewise.
	* config/sparc/vxworks.h (STACK_CHECK_STATIC_BUILTIN): Likewise.
	(STACK_CHECK_PROTECT): Likewise.
ada/
	* system-vxworks-m68k.ads (Stack_Check_Probes): Set to True.
	(Stack_Check_Limits): Set to False.
	* system-vxworks-mips.ads (Stack_Check_Probes): Set to True.
	(Stack_Check_Limits): Set to False.
	* system-vxworks-ppc.ads (Stack_Check_Probes): Set to True.
	(Stack_Check_Limits): Set to False.
	* system-vxworks-sparcv9.ads (Stack_Check_Probes): Set to True.
	(Stack_Check_Limits): Set to False.
	* system-vxworks-x86.ads (Stack_Check_Probes): Set to True.
	(Stack_Check_Limits): Set to False.

From-SVN: r234171

	libgomp/
	* testsuite/lib/libgomp.exp (libgomp_init): Potentially append to
	always_ld_library_path the path to libgcc_s.

From-SVN: r234170

2016-03-13  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Jim MacArthur  <jim.macarthur@codethink.co.uk>

	PR fortran/69043
	* scanner.c (load_file): Check that included file is regular.

	PR fortran/69043
	* gfortran.dg/include_9.f90: New test.

Co-Authored-By: Jim MacArthur <jim.macarthur@codethink.co.uk>

From-SVN: r234169

2016-03-13  Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR fortran/45076
	gfortran.dg/prof/prof.exp: New script.
	gfortran.dg/prof/dynamic_dispatch_6.f03: New test.

From-SVN: r234168

2016-03-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
	    Harold Anlauf  <anlauf@gmx.de>

	PR fortran/69520
	* invoke.texi: Explain use of the 'no-' construct within the
	-fcheck= option.
	* options.c (gfc_handle_runtime_check_option): Enable use of
	'no-' prefix for the various options with -fcheck= to allow
	negating previously enabled check options.

Co-Authored-By: Harald Anlauf <anlauf@gmx.de>

From-SVN: r234167

From-SVN: r234166

	PR rtl-optimization/69307
	* sel-sched.c (choose_best_pseudo_reg): Properly check for hard
	registers in modes that span more than one register.

	PR rtl-optimization/69307
	* gcc.dg/pr69307.c: New test.

From-SVN: r234163

re PR target/69614 (wrong code with -Os -fno-expensive-optimizations -fschedule-insns -mtpcs-leaf-frame -fira-algorithm=priority @ armv7a)

2016-03-12  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/69614
	* lra-constraints.c (delete_move_and_clobber): New.
	(remove_inheritance_pseudos): Use it.

2016-03-12  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/69614
	* gcc.target/arm/pr69614.c: New.

From-SVN: r234162

re PR fortran/70031 (Error in recursive module subroutine declaration if declared as "module recursive")

2016-03-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/70031
	* decl.c (gfc_match_prefix): Treat the 'module' prefix in the
	same way as the others, rather than fixing it to come last.
	(gfc_match_function_decl, gfc_match_subroutine): After errors
	in 'copy_prefix', emit them immediately in the case of module
	procedures to prevent a later ICE.

	PR fortran/69524
	* decl.c (gfc_match_submod_proc): Permit 'module procedure'
	declarations within the contains section of modules as well as
	submodules.
	* resolve.c (resolve_fl_procedure): Likewise.
	*trans-decl.c (build_function_decl): Change the gcc_assert to
	allow all forms of module procedure declarations within module
	contains sections.

2016-03-12  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/70031
	* gfortran.dg/submodule_14.f08: New test

	PR fortran/69524
	* gfortran.dg/submodule_15.f08: New test

From-SVN: r234161

	PR ada/70017
	* calls.c (emit_library_call_value_1): Clear the ECF_NOTHROW flag if
	the libcall is LCT_THROW.
	* explow.c (probe_stack_range): Pass LCT_THROW to emit_library_call
	for the checking routine.

From-SVN: r234160

gcc/cp/ChangeLog:

	PR c++/70106
	* semantics.c (force_paren_expr): Just build a PAREN_EXPR when
	processing_template_decl and EXPR is a SCOPE_REF.

gcc/testsuite/ChangeLog:

	PR c++/70106
	* g++.dg/cpp1y/paren3.C: New test.

From-SVN: r234159

From-SVN: r234158

[gcc]
2016-03-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/70131
	* config/rs6000/rs6000.md (round32<mode>2_fprs): Do not do the
	optimization if we have direct move.
	(roundu32<mode>2_fprs): Likewise.

[gcc/testsuite]
2016-03-11  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/70131
	* gcc.target/powerpc/ppc-round2.c: New test.

From-SVN: r234155

From-SVN: r234153

	PR target/70123
	* lra-remat.c (operand_to_remat): Disallow hard regs in the value t
	be rematerialized.
	(reg_overlap_for_remat_p): Renamed from input_regno_present_p.
	Arguments swapped.  All callers changed.  Take reg_renumber into
	account, and Calculate and compare register ranges for hard regs.

	PR target/70123
	* gcc.dg/torture/pr70123.c: New test.

From-SVN: r234152

	PR tree-optimization/70190
	* tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
	Handle cases where we can not extract the taken edge, even though we
	found a constant value.

	PR tree-optimization/70190
	* gcc.c-torture/compile/pr70190.c: New test.

From-SVN: r234151

	PR tree-optimization/64058
	* tree-ssa-coalesce.c (struct coalesce_pair): Add new field INDEX.
	(num_coalesce_pairs): Move up earlier in file.
	(find_coalesce_pair): Initialize the INDEX field for each pair
	discovered.
	(compare_pairs): No longer sort on the elements in each pair.
	Instead break ties with the index of the coalesce pair.

From-SVN: r234149

gcc/testsuite/ChangeLog:
	PR c/68187
	* c-c++-common/Wmisleading-indentation.c (test43_a): New test
	case.
	(test43_b): Likewise.
	(test43_c): Likewise.
	(test43_d): Likewise.
	(test43_e): Likewise.
	(test43_f): Likewise.
	(test43_g): Likewise.
	(test44_a): Likewise.
	(test44_b): Likewise.
	(test44_c): Likewise.
	(test44_d): Likewise.
	(test44_e): Likewise.

From-SVN: r234146

PR c/70085 reported a false-positive from -Wmisleading-indentation.

The warning was fixed by the fix for PR c/68187 (r233972), but it seems
worth capturing the reproducer for PR c/70085 as an additional test case,
as it's slightly different to those seen in PR c/68187.

gcc/testsuite/ChangeLog:
	PR c/70085
	* c-c++-common/Wmisleading-indentation.c (pr70085): New test case.

From-SVN: r234145

	* gcc.target/aarch64/vect-reduc-or_1.c: Add -fno-vect-cost-model to
	dg-options.

From-SVN: r234142

	PR target/70002
	* config/aarch64/aarch64-protos.h
	(aarch64_save_restore_target_globals): New prototype.
	* config/aarch64/aarch64-c.c (aarch64_pragma_target_parse):
	Call the above when popping pragma.
	* config/aarch64/aarch64.c (aarch64_save_restore_target_globals):
	New function.
	(aarch64_set_current_function): Rewrite using the above.

	PR target/70002
	PR target/69245
	* gcc.target/aarch64/pr69245_2.c: New test.

From-SVN: r234141

	PR tree-optimization/70177
	* gimple-expr.h (extract_ops_from_tree_1): Renamed to ...
	(extract_ops_from_tree): ... this.  In the 2 argument
	overload remove _1 suffix.
	* gimple-expr.c (extract_ops_from_tree_1): Renamed to ...
	(extract_ops_from_tree): ... this.
	* gimple.c (gimple_build_assign, gimple_assign_set_rhs_from_tree):
	Adjust callers.
	* tree-ssa-loop-niter.c (derive_constant_upper_bound): Likewise.
	* tree-ssa-forwprop.c (defcodefor_name): Call 3 operand
	extract_ops_from_tree instead of 2 operand one.

	* gcc.dg/pr70177.c: New test.

From-SVN: r234140

gcc/testsuite:

	* gfortran.dg/unconstrained_commons.f: Widen regexp to match j_<N>.

From-SVN: r234139

gcc:

	PR tree-optimization/70013
	* tree-sra.c (analyze_access_subtree): Also set grp_unscalarized_data
	for constant-pool entries.

gcc/testsuite:

	* gcc.dg/tree-ssa/sra-20.c: New.

From-SVN: r234138

re PR rtl-optimization/70174 (ICE at -O1 and above on x86_64-linux-gnu in gen_lowpart_general, at rtlhooks.c:63)

	PR rtl-optimization/70174
	* expmed.c (store_bit_field_using_insv): Use gen_lowpart_if_possible
	followed by gen_lowpart on force_reg instead of just gen_lowpart.

	* gcc.dg/pr70174.c: New test.

From-SVN: r234137

re PR tree-optimization/70169 (ICE at -O1 and above on x86_64-linux-gnu in gen_lsm_tmp_name, at tree-ssa-loop.c:791)

	PR tree-optimization/70169
	* tree-ssa-loop.c (gen_lsm_tmp_name): Handle FUNCTION_DECL and
	LABEL_DECL like VAR_DECL.  Emit nothing instead of gcc_unreachable
	for unknown codes.

	* gcc.dg/pr70169.c: New test.

From-SVN: r234136

re PR rtl-optimization/70160 (gcc ICE at -O2 (seg fault) and above on valid code on x86_64-linux-gnu)

gcc/

	PR target/70160
	* config/i386/i386.c (scalar_chain::convert_reg): Skip uses
	of uninitialized values.

gcc/testsuite/

	PR target/70160
	* gcc.target/i386/pr70160.c: New test.

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

From-SVN: r234135

We do not have a direct conversion instruction from 128 bit DFP to 32
bit DFP so this needs to be done in two steps.  The first needs to be
done with the "prepare for shorter precision rounding mode" in order
to produce a correct result.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("trunctddd2"): Turn former define_insn into
	define_expand.
	("*trunctddd2"): New pattern definition.
	("trunctdsd2"): Set prep_for_short_prec rounding mode for the
	TD->DD truncation.

gcc/testsuite/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/dfp-1.c: New test.

From-SVN: r234134

This patch replaces a few magic numbers used for floating point
rounding modes with macros.  This is mostly a NoOp change apart from:

fixuns_truncdddi2, fixuns_trunctddi2, fixuns_trunc<mode>si2: Replace 5
with DFP_RND_TOWARD_0 (which is 9).

5 as well as 9 represent round towards 0 with the difference that for
5 the new DFP quantum exception is enabled as well.  This exception
isn't IEEE754 and we do not have an interface to enable and test it
anyway.  So we do not intend to enable it.  This so far should not
have any noticable effect since the quantum exception was not
observable through the Posix functions.

Some pattern ("fix_trunc<mode>di2") is already using rounding mode 9
correctly.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md (BFP_RND_*, DFP_RND_*): Add new constant
	definitions for BFP and DFP rounding modes.
	("fixuns_truncdddi2", "fixuns_trunctddi2")
	("fixuns_trunc<BFP:mode><GPR:mode>2", "fixuns_trunc<mode>si2")
	("fix_trunc<DSF:mode><GPR:mode>2", "fix_trunc<mode>di2")
	("fix_trunctf<mode>2"): Use the new constants instead of magic
	numbers.

From-SVN: r234133

The shift_count_or_setmem_operand predicate is now only used for
setmem patterns anymore.  Rename it together with the related
functions.

gcc/ChangeLog:

2016-03-11  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/constraints.md: Adjust comment.
	("Y"): Adjust comment.  Rename s390_decompose_shift_count to
	s390_decompose_addrstyle_without_index.
	* config/s390/predicates.md (shift_count_or_setmem_operand):
	Rename to setmem_operand.
	* config/s390/s390-protos.h
	(s390_decompose_shift_count): Rename to
	s390_decompose_addrstyle_without_index.
	* config/s390/s390.c (s390_decompose_shift_count)
	(s390_mem_constraint, print_shift_count_operand)
	(print_operand_address, print_operand): Rename
	s390_decompose_shift_count to
	s390_decompose_addrstyle_without_index and rename
	print_shift_count_operand to print_addrstyle_operand troughout the
	file.
	* config/s390/s390.md ("setmem_long_<P:mode>", "*setmem_long")
	("*setmem_long_and", "*setmem_long_31z", "*setmem_long_and_31z"):
	Rename shift_count_or_setmem_operand to setmem_operand.
	* config/s390/vx-builtins.md ("vec_insert<mode>")
	("vec_promote<mode>"): Replace shift_count_or_setmem_operand with
	nonmemory_operand.

From-SVN: r234132

From-SVN: r234130

	PR target/70168
	* config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
	Handle overlapping retval and newval.

From-SVN: r234126