PR/44128
       * gcc/doc/invoke.texi: Update documentation of -Wshadow.
       * gcc/cp/name-lookup.c (pushdecl_maybe_friend): Warn when a local
       decl (variable or type) shadows another type.
       * gcc/testsuite/g++.dg/warn/Wshadow-7.C: New test.

From-SVN: r161765

2010-07-02  Daniel Jacobowitz  <dan@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>
	    Sandra Loosemore <sandra@codesourcery.com>

	gcc/
	* config/arm/arm.c (arm_canonicalize_comparison): Canonicalize DImode
	comparisons.  Adjust to take both operands.
	(arm_select_cc_mode): Handle DImode comparisons.
	(arm_gen_compare_reg): Generate a scratch register for DImode
	comparisons which require one.  Use xor for Thumb equality checks.
	(arm_const_double_by_immediates): New.
	(arm_print_operand): Allow 'Q' and 'R' for constants.
	(get_arm_condition_code): Handle new CC_CZmode and CC_NCVmode.
	* config/arm/arm.h (CANONICALIZE_COMPARISON): Always use
	arm_canonicalize_comparison.
	* config/arm/arm-modes.def: Add CC_CZmode and CC_NCVmode.
	* config/arm/arm-protos.h (arm_canonicalize_comparison): Update
	prototype.
	(arm_const_double_by_immediates): Declare.
	* config/arm/constraints.md (Di): New constraint.
	* config/arm/predicates.md (arm_immediate_di_operand)
	(arm_di_operand, cmpdi_operand): New.
	* config/arm/arm.md (cbranchdi4): Handle non-Cirrus also.
	(*arm_cmpdi_insn, *arm_cmpdi_unsigned)
	(*arm_cmpdi_zero, *thumb_cmpdi_zero): New insns.
	(cstoredi4): Handle non-Cirrus also.

	gcc/testsuite/
	* gcc.c-torture/execute/20100416-1.c: New test case.


Co-Authored-By: Julian Brown <julian@codesourcery.com>
Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>

From-SVN: r161764

2010-07-02  Julian Brown  <julian@codesourcery.com>
	    Sandra Loosemore <sandra@codesourcery.com>

	PR target/43703

	gcc/
	* config/arm/vec-common.md (add<mode>3, sub<mode>3, smin<mode>3)
	(smax<mode>3): Disable for NEON float modes when
	flag_unsafe_math_optimizations is false.
	* config/arm/neon.md (*add<mode>3_neon, *sub<mode>3_neon)
	(*mul<mode>3_neon)
	(mul<mode>3add<mode>_neon, mul<mode>3neg<mode>add<mode>_neon)
	(reduc_splus_<mode>, reduc_smin_<mode>, reduc_smax_<mode>): Disable
	for NEON float modes when flag_unsafe_math_optimizations is false.
	(quad_halves_<code>v4sf): Only enable if flag_unsafe_math_optimizations
	is true.
	* doc/invoke.texi (ARM Options): Add note about floating point
	vectorization requiring -funsafe-math-optimizations.

	gcc/testsuite/
	* gcc.dg/vect/vect.exp: Add -ffast-math for NEON.
	* gcc.dg/vect/vect-reduc-6.c: Add XFAIL for NEON.



Co-Authored-By: Sandra Loosemore <sandra@codesourcery.com>

From-SVN: r161763

2010-07-02  Sandra Loosemore  <sandra@codesourcery.com>
	    Julian Brown  <julian@codesourcery.com>

	gcc/
	* config/arm/neon.md (UNSPEC_VABA): Delete.
	(UNSPEC_VABAL): Delete.
	(UNSPEC_VABS): Delete.
	(UNSPEC_VMUL_N): Delete.
	(adddi3_neon): New.
	(subdi3_neon): New.
	(mul<mode>3add<mode>_neon): Make the pattern named.
	(mul<mode>3neg<mode>add<mode>_neon): Likewise.
	(neon_vadd<mode>): Replace with define_expand, and move the remaining
	unspec parts...
	(neon_vadd<mode>_unspec): ...to this.
	(neon_vmla<mode>, neon_vmla<mode>_unspec): Likewise.
	(neon_vlms<mode>, neon_vmls<mode>_unspec): Likewise.
	(neon_vsub<mode>, neon_vsub<mode>_unspec): Likewise.
	(neon_vaba<mode>): Rewrite in terms of vabd.
	(neon_vabal<mode>): Rewrite in terms of vabdl.
	(neon_vabs<mode>): Rewrite without unspec.
	* config/arm/arm.md (*arm_adddi3): Disable for TARGET_NEON.
	(*arm_subdi3): Likewise.
	* config/arm/neon.ml (Vadd, Vsub): Split out 64-bit variants and add
	No_op attribute to disable assembly output checks.
	* config/arm/arm_neon.h: Regenerated.
	* doc/arm-neon-intrinsics.texi: Regenerated.

	gcc/testsuite/
	* gcc.target/arm/neon/vadds64.c: Regenerated.
	* gcc.target/arm/neon/vaddu64.c: Regenerated.
	* gcc.target/arm/neon/vsubs64.c: Regenerated.
	* gcc.target/arm/neon/vsubu64.c: Regenerated.
	* gcc.target/arm/neon-vmla-1.c: Add -ffast-math to options.
	* gcc.target/arm/neon-vmls-1.c: Likewise.
	* gcc.target/arm/neon-vsubs64.c: New execution test.
	* gcc.target/arm/neon-vsubu64.c: New execution test.
	* gcc.target/arm/neon-vadds64.c: New execution test.
	* gcc.target/arm/neon-vaddu64.c: New execution test.

Co-Authored-By: Julian Brown <julian@codesourcery.com>

From-SVN: r161762

From-SVN: r161760

	* ipa-split.c (split_function): For aggregate values set return_slot_opt;
	when passing DECL_BY_REFERENCE produce *<retval> = fncall.part ()
	(execute_split_functions): Do not care about DECL_BY_REFERENCE.

From-SVN: r161756

2010-07-02  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/arm/neon.md (UNSPEC_VAND): Delete.
	(UNSPEC_VBIC): Delete.
	(UNSPEC_VCLZ): Delete.
	(UNSPEC_VCNT): Delete.
	(UNSPEC_VEOR): Delete.
	(UNSPEC_VORN): Delete.
	(UNSPEC_VORR): Delete.
	(iordi3_neon): Rewrite RTL without unspec.  Add alternatives to handle
	core registers too.
	(anddi3_neon): Likewise.
	(orndi3_neon): Likewise.
	(bicdi3_neon): Likewise.
	(xordi3_neon): Likewise.
	(neon_vclz<mode>): Rewrite as define_expand and clz<mode>2 to get
	rid of unspec and handle unused operand.
	(neon_vcnt<mode>): Similarly, with popcount<mode>2.
	* config/arm/predicates.md (imm_for_neon_logic_operand):
	Require TARGET_NEON.
	(imm_for_neon_inv_logic_operand): Likewise.
	* config/arm/arm.md (define_split for logical_binary_operator): 
	Disable for NEON registers.
	(anddi3): Add new define_expand, and rename the insn.  Disable
	this insn for NEON, where anddi3_neon now applies.
	(*anddi_notdi_di): Disable for TARGET_NEON, where bicdi3_neon applies.
	(iordi3): As for anddi3.
	(xordi3): Likewise.
	* config/arm/neon.ml (Vand): Split DImode variants and mark them
	as No_op to disable testing for exact instruction match.
	(Vorr): Likewise.
	(Veor): Likewise.
	(Vbic): Likewise.
	(Vorn): Likewise.
	* config/arm/arm_neon.h: Regenerated.
	* doc/arm-neon-intrinsics.texi: Regenerated.

	gcc/testsuite/
	* gcc.target/arm/neon-vands64.c: New.
	* gcc.target/arm/neon-vandu64.c: New.
	* gcc.target/arm/neon-vbics64.c: New.
	* gcc.target/arm/neon-vbicu64.c: New.
	* gcc.target/arm/neon-veors64.c: New.
	* gcc.target/arm/neon-veoru64.c: New.
	* gcc.target/arm/neon-vorns64.c: New.
	* gcc.target/arm/neon-vornu64.c: New.
	* gcc.target/arm/neon-vorrs64.c: New.
	* gcc.target/arm/neon-vorru64.c: New.
	* gcc.target/arm/neon/vands64.c: Regenerated.
	* gcc.target/arm/neon/vandu64.c: Regenerated.
	* gcc.target/arm/neon/vbics64.c: Regenerated.
	* gcc.target/arm/neon/vbicu64.c: Regenerated.
	* gcc.target/arm/neon/veors64.c: Regenerated.
	* gcc.target/arm/neon/veoru64.c: Regenerated.
	* gcc.target/arm/neon/vorns64.c: Regenerated.
	* gcc.target/arm/neon/vornu64.c: Regenerated.
	* gcc.target/arm/neon/vorrs64.c: Regenerated.
	* gcc.target/arm/neon/vorru64.c: Regenerated.

From-SVN: r161755

From-SVN: r161751

	* expr.h (emit_stack_probe): Declare.
	* explow.c (emit_stack_probe): Make global.
	(anti_adjust_stack_and_probe): Fix comments.
	* config/sparc/linux.h (STACK_CHECK_STATIC_BUILTIN): Define to 1.
	* config/sparc/linux64.h (STACK_CHECK_STATIC_BUILTIN): Likewise.
	* config/sparc/sol2.h (STACK_CHECK_STATIC_BUILTIN): Likewise.
	* config/sparc/sparc.c: Include except.h.
	(sparc_emit_probe_stack_range): New function.
	(output_probe_stack_range): Likewise.
	(sparc_expand_prologue): Invoke sparc_emit_probe_stack_range if static
	built-in stack checking is enabled.
	* config/sparc/sparc-protos.h (output_probe_stack_range): Declare.
	* config/sparc/sparc.md (UNSPECV_PROBE_STACK_RANGE): New constant.
	(probe_stack_range): New insn.

From-SVN: r161749

2010-07-02  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* gfortran.dg/runtime_warning_1.f90: Remove extra dg line.

From-SVN: r161747

	PR target/43958
	* config/pa/pa.c (hppa_gimplify_va_arg_expr): Use pointer arithmetic
	for argument alignment.

From-SVN: r161746

2010-07-02  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	* gfortran.dg/runtime_warning_1.f90: Fix dg syntax.
	* gfortran.dg/intent_out_5.f90: Same.
	* gfortran.dg/ltrans-7.f90: Same.
	* gfortran.dg/char_bounds_check_fail_1.f90: Same.

From-SVN: r161745

	* ipa-split.c (verify_non_ssa_vars): Break out from ...; perform DFS walk
	backwards from entry_bb to check only those basic block of header
	that might lead to execution of split part.
	(consider_split) ... here.
	(find_return_bb): Allow assignment in return BB.
	(find_retval): New.
	(split_function): Fix name of cloned function; take care of updating return
	value in return_bb containing move.

	* gcc.dg/tree-ssa/ipa-split-5.c: New function.

From-SVN: r161744

	* objc-obj-c++-shared/Object1.h: Correct Line endings.

From-SVN: r161743

	PR c++/44780
	* typeck.c (convert_for_assignment): When converting a convertible
	vector type or objc++ types, call mark_rvalue_use.
	* typeck2.c (build_m_component_ref): Use return values from
	mark_rvalue_use or mark_lvalue_use.
	* class.c (build_base_path): Likewise.
	* call.c (build_conditional_expr): Likewise.

	* c-c++-common/Wunused-var-12.c: New test.

From-SVN: r161742

PR target/44771
* config/m68k/m68k.c (m68k_expand_prologue): Remove set but not
used variable insn.

From-SVN: r161741

2010-07-02  Mikael Morin  <mikael@gcc.gnu.org>

	PR fortran/44662
	* decl.c (match_procedure_in_type): Clear structure before using.
	(gfc_match_generic): Ditto.

From-SVN: r161739

	* trans-types.h (gfc_add_field_to_struct): Add tree ** parameter.
	* trans-types.c (gfc_add_field_to_struct_1): New function, most
	of which comes from...
	(gfc_add_field_to_struct): ...here.  Call it.  Add new parameter.
	(gfc_get_desc_dim_type): Call gfc_add_field_to_struct_1 for
	building fields.
	(gfc_get_array_descriptor_base): Likewise.
	(gfc_get_mixed_entry_union): Likewise.
	(gfc_get_derived_type): Add extra chain parameter for
	gfc_add_field_to_struct.
	* trans-stmt.c (gfc_trans_character_select): Likewise.
	* trans-io.c (gfc_build_st_parameter): Likewise.

From-SVN: r161738

	* implicit-zee.c (combine_reaching_defs): Fix long lines.
	(is_set_with_extension_DI): Delete.
	(struct zero_extend_info): New structure.
	(add_removable_zero_extend ): New function.
	(find_removable_zero_extends): Use note_stores to find SETs.
	(find_and_remove_ze): Fix long line, remove superfluous parentheses.

From-SVN: r161736

2010-06-28  Tobias Burnus  <burnus@net-b.de>

        PR fortran/43298
        * list_read.c (parse_real): Do not pass (..) on for NAN(..).
        * read.c (convert_real): Fix comment about NAN/INF.

From-SVN: r161735

	* Makefile.am (AM_MAKEFLAGS): Pass also mandir to submakes.
	* Makefile.in: Regenerated.

From-SVN: r161731

2010-07-02  Sebastian Pop  <sebastian.pop@amd.com>

	* check_GNU_style.sh: New.

From-SVN: r161729

2010-07-02  Changpeng Fang  <changpeng.fang@amd.com>

	* tree-ssa-loop-prefetch.c (compute_miss_rate): Rename to
	is_miss_rate_acceptable. Pull total_positions computation
	out of the loops.  Early return if miss_positions exceeds
	the acceptable threshold.
	* tree-ssa-loop-prefetch.c (prune_ref_by_group_reuse): Call
	is_miss_rate_acceptable after renaming of compute_miss_rate.

From-SVN: r161728

2010-07-02  Changpeng Fang  <changpeng.fang@amd.com>

	PR middle-end/44576
	* tree-ssa-loop-prefetch.c (compute_miss_rate): Return 1000 (out
	of 1000) for miss rate if the address diference is greater than or
	equal to the cache line size (the two reference will never hit the
	same cache line).

From-SVN: r161727

	PR target/42172
	* config/arm/arm.c (thumb1_rtx_costs): Improve support for SIGN_EXTEND
	and ZERO_EXTEND.
	(arm_rtx_costs_1): Likewise.
	(arm_size_rtx_costs): Use arm_rtx_costs_1 for these codes.
	* config/arm/arm.md (is_arch6): New attribute.
	(zero_extendhisi2, zero_extendqisi2, extendhisi2,
	extendqisi2): Tighten the code somewhat, avoiding invalid
	RTL to occur in the expander patterns.
	(thumb1_zero_extendhisi2): Merge with thumb1_zero_extendhisi2_v6.
	(thumb1_zero_extendhisi2_v6): Delete.
	(thumb1_extendhisi2): Merge with thumb1_extendhisi2_v6.
	(thumb1_extendhisi2_v6): Delete.
	(thumb1_extendqisi2): Merge with thumb1_extendhisi2_v6.
	(thumb1_extendqisi2_v6): Delete.
	(zero_extendhisi2 for register input splitter): New.
	(zero_extendqisi2 for register input splitter): New.
	(thumb1_extendhisi2 for register input splitter): New.
	(extendhisi2 for register input splitter): New.
	(extendqisi2 for register input splitter): New.
	(TARGET_THUMB1 extendqisi2 for memory input splitter): New.
	(arm_zero_extendhisi2): Allow nonimmediate_operand for operand 1,
	and add support for a register alternative requiring a split.
	(thumb1_zero_extendqisi2): Likewise.
	(arm_zero_extendqisi2): Likewise.
	(arm_extendhisi2): Likewise.
	(arm_extendqisi2): Likewise.

testsuite/
	PR target/42172
	* gcc.target/arm/pr42172-1.c: New test.

From-SVN: r161726

	PR target/42835
	* config/arm/arm-modes.def (CC_NOTB): New mode.
	* config/arm/arm.c (get_arm_condition_code): Handle it.
	* config/arm/thumb2.md (thumb2_compare_scc): Delete pattern.
	* config/arm/arm.md (subsi3_compare0_c): New pattern.
	(compare_scc): Now a define_and_split.  Add a number of extra
	splitters before it.

testsuite/
	PR target/42835
	* gcc.target/arm/pr42835.c: New test.

From-SVN: r161725

	libgfortran:
	* configure.ac (gfortran_use_symver): Only check for Sun-style symbol
	versioning on Solaris 2.
	* configure: Regenerate.

	libssp:
	* configure.ac (ssp_use_symver): Only check for Sun-style symbol
	versioning on Solaris 2.
	* configure: Regenerate.

From-SVN: r161724

2010-07-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* g++.dg/template/crash101.C: Remove stray // from dg-error comment.

From-SVN: r161722

2010-07-02  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/arm/arm.c (neon_vdup_constant): Expand into canonical RTL
	instead of an unspec.
	(neon_expand_vector_init): Likewise.
	* config/arm/neon.md (UNSPEC_VCOMBINE): Delete.
	(UNSPEC_VDUP_LANE): Delete.
	(UNSPEC VDUP_N): Delete.
	(UNSPEC_VGET_HIGH): Delete.
	(UNSPEC_VGET_LANE): Delete.
	(UNSPEC_VGET_LOW): Delete.
	(UNSPEC_VMVN): Delete.
	(UNSPEC_VSET_LANE): Delete.
	(V_double_vector_mode): New.
	(vec_set<mode>_internal): Make code emitted match that for the
	corresponding intrinsics.
	(vec_setv2di_internal): Likewise.
	(neon_vget_lanedi): Rewrite to expand into emit_move_insn.
	(neon_vget_lanev2di): Rewrite to expand into vec_extractv2di.
	(neon_vset_lane<mode>): Combine double and quad patterns and
	expand into vec_set<mode>_internal instead of UNSPEC_VSET_LANE.
	(neon_vset_lanedi): Rewrite to expand into emit_move_insn.
	(neon_vdup_n<mode>): Rewrite RTL without unspec.
	(neon_vdup_ndi): Rewrite as define_expand and use emit_move_insn.
	(neon_vdup_nv2di): Rewrite RTL without unspec and merge with
	with neon_vdup_lanev2di, adjusting the pattern from the latter
	to be predicable for consistency.
	(neon_vdup_lane<mode>_internal): New.
	(neon_vdup_lane<mode>): Turn into a define_expand and rewrite
	to avoid using an unspec.
	(neon_vdup_lanedi): Rewrite RTL pattern to avoid unspec.
	(neon_vdup_lanev2di): Turn into a define_expand.
	(neon_vcombine): Rewrite pattern to eliminate UNPSEC_VCOMBINE.
	(neon_vget_high<mode>): Replace with....
	(neon_vget_highv16qi): New pattern using canonical RTL.
	(neon_vget_highv8hi): Likewise.
	(neon_vget_highv4si): Likewise.
	(neon_vget_highv4sf): Likewise.
	(neon_vget_highv2di): Likewise.
	(neon_vget_low<mode>): Replace with....
	(neon_vget_lowv16qi): New pattern using canonical RTL.
	(neon_vget_lowv8hi): Likewise.
	(neon_vget_lowv4si): Likewise.
	(neon_vget_lowv4sf): Likewise.
	(neon_vget_lowv2di): Likewise.

	* config/arm/neon.ml (Vget_lane): Add No_op attribute to suppress
	test for this emitting vmov.
	(Vset_lane): Likewise.
	(Vdup_n): Likewise.
	(Vmov_n): Likewise.

	* doc/arm-neon-intrinsics.texi: Regenerated.

	gcc/testsuite/
	* gcc.target/arm/neon/vdup_ns64.c: Regenerated.
	* gcc.target/arm/neon/vdup_nu64.c: Regenerated.
	* gcc.target/arm/neon/vdupQ_ns64.c: Regenerated.
	* gcc.target/arm/neon/vdupQ_nu64.c: Regenerated.
	* gcc.target/arm/neon/vmov_ns64.c: Regenerated.
	* gcc.target/arm/neon/vmov_nu64.c: Regenerated.
	* gcc.target/arm/neon/vmovQ_ns64.c: Regenerated.
	* gcc.target/arm/neon/vmovQ_nu64.c: Regenerated.
	* gcc.target/arm/neon/vget_lanes64.c: Regenerated.
	* gcc.target/arm/neon/vget_laneu64.c: Regenerated.
	* gcc.target/arm/neon/vset_lanes64.c: Regenerated.
	* gcc.target/arm/neon/vset_laneu64.c: Regenerated.
	* gcc.target/arm/neon-vdup_ns64.c: New.
	* gcc.target/arm/neon-vdup_nu64.c: New.
	* gcc.target/arm/neon-vdupQ_ns64.c: New.
	* gcc.target/arm/neon-vdupQ_nu64.c: New.
	* gcc.target/arm/neon-vdupQ_lanes64.c: New.
	* gcc.target/arm/neon-vdupQ_laneu64.c: New.
	* gcc.target/arm/neon-vmov_ns64.c: New.
	* gcc.target/arm/neon-vmov_nu64.c: New.
	* gcc.target/arm/neon-vmovQ_ns64.c: New.
	* gcc.target/arm/neon-vmovQ_nu64.c: New.
	* gcc.target/arm/neon-vget_lanes64.c: New.
	* gcc.target/arm/neon-vget_laneu64.c: New.
	* gcc.target/arm/neon-vset_lanes64.c: New.
	* gcc.target/arm/neon-vset_laneu64.c: New.

From-SVN: r161720

neon.md (vec_extractv2di): Correct error in register numbering to reconcile with neon_vget_lanev2di.

2010-07-02  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/arm/neon.md (vec_extractv2di): Correct error in register
	numbering to reconcile with neon_vget_lanev2di.

From-SVN: r161719

2010-07-02  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (pt_solution_set_var): New function.
	* tree-ssa-alias.h (pt_solution_set_var): Declare.
	* tree-ssa-loop-ivopts.c (copy_ref_info): Also copy or create
	points-to information.

From-SVN: r161716

s390.c (override_options): Adopt prefetching at -O3 to handle flag_prefetch_loop_arrays as a tristate.

2010-07-02  Christian Borntraeger  <borntraeger@de.ibm.com>
 
	* config/s390/s390.c (override_options): Adopt prefetching
	at -O3 to handle flag_prefetch_loop_arrays as a tristate.

From-SVN: r161709

	* df-problems.c (df_kill_notes): Do not collect dead  notes.
	(df_set_note): Just call add_reg_note.
	(df_set_unused_notes_for_mw, df_set_dead_notes_for_mw,
	df_create_unused_note): Do not deal with lists of old notes.
	(df_note_bb_compute): Likewise.

From-SVN: r161708

2010-07-02  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (find_func_aliases): Handle
	pointer alignment via BIT_AND_EXPR.
	* tree-vrp.c (extract_range_from_binary_expr): Likewise.

From-SVN: r161707

2010-07-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* acinclude.m4 (symvers_renaming): Define
	HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT instead of
	_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT.
	Fix syntax error.
	* config.h.in: Regenerate.
	* configure: Regenerate.

From-SVN: r161706

tree-data-ref.c (initialize_data_dependence_relation): Handle mismatching number of dimensions properly.

2010-07-02  Richard Guenther  <rguenther@suse.de>

	* tree-data-ref.c (initialize_data_dependence_relation): Handle
	mismatching number of dimensions properly.

	* g++.dg/torture/20100702-1.C: New testcase.

From-SVN: r161705

	* gcc-interface/misc.c (gnat_handle_option): Do not populate gnat_argv.
	(gnat_handle_option): Allocate only one element for gnat_argv.
	(gnat_init): Do not populate gnat_argv.

From-SVN: r161704

ChangeLog:

	PR target/44707
	* config/rs6000/rs6000.c (rs6000_legitimize_reload_address): Recognize
	(lo_sum (high ...) ...) patterns generated by earlier passes.

testsuite/ChangeLog:

	PR target/44707
	* gcc.c-torture/compile/pr44707.c: New test.

From-SVN: r161703

  left over from testing.

From-SVN: r161702

From-SVN: r161701