2017-03-27  Richard Biener  <rguenther@suse.de>

	PR ipa/79776
	* tree-ssa-structalias.c (associate_varinfo_to_alias): Skip
	inlined thunk clones.

	* g++.dg/ipa/pr79776.C: New testcase.

From-SVN: r246494

	PR sanitizer/80168
	* asan.c (instrument_derefs): Copy over last operand from
	original COMPONENT_REF to the new COMPONENT_REF with
	DECL_BIT_FIELD_REPRESENTATIVE.
	* ubsan.c (instrument_object_size): Likewise.

	* gcc.dg/asan/pr80168.c: New test.

From-SVN: r246492

2017-03-27  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/80170
	* tree-vect-data-refs.c (vect_compute_data_ref_alignment): Make
	sure DR/SCEV didnt fold in constants we do not see when looking
	at the reference base alignment.

	* gcc.dg/pr80170.c: New testcase.

From-SVN: r246491

2017-03-27  Richard Biener  <rguenther@suse.de>

	PR middle-end/80171
	* gimple-fold.c (fold_ctor_reference): Properly guard against
	NULL return value from canonicalize_constructor_val.

	* g++.dg/torture/pr80171.C: New testcase.

From-SVN: r246490

From-SVN: r246489

	* gcc.dg/torture/pr79732.c: Require alias support.
	* gcc.dg/tree-ssa/pr56727.c: Move dg-require-alias after dg-do compile.

From-SVN: r246485

	* gfortran.dg/coarray_failed_images_1.f08: Add "-latomic" option if
	libatomic_available.
	* gfortran.dg/coarray_image_status_1.f08: Likewise.
	* gfortran.dg/coarray_stopped_images_1.f08: Likewise.

From-SVN: r246484

	PR libstdc++/80183
	* include/bits/stl_tree.h:
	(_Rb_tree_header::_M_move_data(_Rb_tree_header&)): Also save _M_color.

From-SVN: r246483

From-SVN: r246482

2017-03-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/78881
	* io/io.h (st_parameter_dt): Rename unused component last_char to
	child_saved_iostat. Move comment to gfc_unit.
	* io/list_read.c (list_formatted_read_scalar): After call to
	child READ procedure, save the returned iostat value for later
	check. (finish_list_read): Only finish READ if child_saved_iostat
	was OK.
	* io/transfer.c (read_sf_internal): If there is a saved character
	in last character, seek back one. Add a new check for EOR
	condition. (read_sf): If there is a saved character
	in last character, seek back one. (formatted_transfer_scalar_read):
	Initialize last character before invoking child procedure.
	(data_transfer_init): If child dtio, set advance
	status to nonadvancing. Move update of size and check for EOR
	condition to before child dtio return.

	* gfortran.dg/dtio_26.f90: New test.

From-SVN: r246478

re PR fortran/80156 (Generic DTIO interface reported missing if public statement preceeds the interface block)

2017-03-25  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80156
	PR fortran/79382
	* decl.c (access_attr_decl): Remove the error for an absent
	generic DTIO interface and ensure that symbol has the flavor
	FL_PROCEDURE.

2017-03-25  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/80156
	PR fortran/79382
	* gfortran.dg/dtio_23.f90 : Remove the dg-error and add the
	testcase for PR80156. Add a main programme that tests that
	the typebound generic is accessible.

From-SVN: r246476

	PR target/80180
	* config/i386/i386.c (ix86_expand_builtin)
	<IX86_BUILTIN_RDSEED{16,32,64}_STEP>: Do not expand arg0 between
	flags reg setting and flags reg using instructions.
	<IX86_BUILTIN_RDRAND{16,32,64}_STEP>: Ditto.  Use non-flags reg
	clobbering instructions to zero extend op2.

From-SVN: r246475

	* doc/install.texi (Configuration) <--with-aix-soname>:
	Update link to AIX ld.

From-SVN: r246474

	PR rtl-optimization/80160
	PR rtl-optimization/80159
	* lra-assigns.c (must_not_spill_p): Tighten new test to also take
	reg_alternate_class into account.

	* gcc.target/i386/pr80160.c: New test.

From-SVN: r246473

From-SVN: r246472

	PR sanitizer/79904
	* gcc.dg/ubsan/pr79904-2.c: Add -Wno-psabi to dg-options.

From-SVN: r246468

2017-03-24  Vladimir Makarov  <vmakarov@redhat.com>

	PR target/80148
	* lra-assigns.c (assign_by_spills): Add spilled non-reload pseudos
	to consider in curr_insn_transform.

From-SVN: r246467

	* pt.c (lookup_template_class_1): Don't try to enter the scope of an
	alias template.

From-SVN: r246462

	PR c++/80119
	* cp-gimplify.c (cp_fold): Strip CLEANUP_POINT_EXPR if the expression
	doesn't have side effects.

	* g++.dg/warn/Wuninitialized-9.C: New test.

From-SVN: r246461

	* genrecog.c (validate_pattern): Add VEC_SELECT validation.
	* genmodes.c (emit_min_insn_modes_c): Call emit_mode_nunits
	and emit_mode_inner.

From-SVN: r246460

This patch implements a set of low-level builtins for instruction
which would otherwise not be emitted by the compiler plus a set of
high-level builtins as defined by the IBM XL compiler.  The high-level
builtins will be described in a future revision of the z/OS XL C/C++
Programming Guide.

I'll try to come up with a documentation appropriate for the GCC
manual as well (sometimes in the future).

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390-builtins.def: Add VXE builtins.  Add a flags
	argument to the overloaded builtin variants.  Use the new flag to
	deprecate certain builtin variants.
	* config/s390/s390-builtin-types.def: Add new builtin types.
	* config/s390/s390-builtins.h: Support new flags field for
	overloaded builtins.
	* config/s390/s390-c.c (OB_DEF_VAR): New flags field.
	(s390_macro_to_expand): Enable vector float data type.
	(s390_cpu_cpp_builtins_internal): Indicate support of the new
	builtins by incrementing the __VEC__ version number.
	(s390_expand_overloaded_builtin): Support expansion of vec_xl and
	vec_xst.
	(s390_resolve_overloaded_builtin): Emit error messages depending
	on the builtin flags.
	* config/s390/s390.c (s390_expand_builtin): Support additional
	flags argument.  Change error message to match the messages
	emitted in s390-c.c.
	* config/s390/s390.md: New UNSPEC_* constants.
	(op_type): Add new instruction types.
	* config/s390/vecintrin.h: Add new builtins and test data class
	constants.
	* config/s390/vx-builtins.md (V_HW_32_64): Add V4SF.
	(V_HW_4, VEC_HW, VECF_HW): New mode iterators.
	(VEC_INEXACT, VEC_NOINEXACT): New constants.
	("vec_splats<mode>", "vec_insert<mode>", "vec_promote<mode>")
	("vec_insert_and_zero<mode>", "vec_mergeh<mode>")
	("vec_mergel<mode>"): V_HW -> VEC_HW.

	("vlrlrv16qi", "vstrlrv16qi", "vbpermv16qi", "vec_msumv2di")
	("vmslg", "*vftci<mode>_cconly", "vftci<mode>_intcconly")
	("*vftci<mode>", "vftci<mode>_intcc", "vec_double_s64")
	("vec_double_u64", "vfmin<mode>", "vfmax<mode>"): New definition.

	("and_av2df3", "and_cv2df3", "vec_andc_av2df3")
	("vec_andc_cv2df3", "xor_av2df3", "xor_cv2df3", "vec_nor_av2df3")
	("vec_nor_cv2df3", "ior_av2df3", "ior_cv2df3", "vec_nabs")
	("*vftcidb", "*vftcidb_cconly", "vftcidb"): Remove definition.

	("vec_all_<fpcmpcc:code>v2df", "vec_any_<fpcmpcc:code>v2df")
	("vec_scatter_elementv4si_DI", "vec_cmp<fpcmp:code>v2df")
	("vec_di_to_df_s64", "vec_di_to_df_u64", "vec_df_to_di_u64")
	("vfidb", "*vldeb", "*vledb", "*vec_cmp<insn_cmp>v2df_cconly")
	("vec_cmpeqv2df_cc", "vec_cmpeqv2df_cc", "vec_cmphv2df_cc")
	("vec_cmphev2df_cc", "*vec_cmpeqv2df_cc")
	("*vec_cmphv2df_cc", "*vec_cmphev2df_cc"): Enable new modes as ...

	("vec_all_<fpcmpcc:code><mode>", "vec_any_<fpcmpcc:code><mode>")
	("vec_scatter_element<V_HW_4:mode>_DI")
	("vec_cmp<fpcmp:code><mode>", "vcdgb", "vcdlgb", "vclgdb")
	("vec_fpint<mode>", "vflls")
	("vflrd", "*vec_cmp<insn_cmp><mode>_cconly", "vec_cmpeq<mode>_cc")
	("vec_cmpeq<mode>_cc", "vec_cmph<mode>_cc", "vec_cmphe<mode>_cc")
	("*vec_cmpeq<mode>_cc", "*vec_cmph<mode>_cc")
	("*vec_cmphe<mode>_cc"): ... these.

	("vec_ctd_s64", "vec_ctsl", "vec_ctul", "vec_st2f"): Use rounding
	mode constant instead of magic value.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/target-attribute/tattr-3.c: Adjust error message
	and remove the high-level builtin.  The error message for the
	would prevent compilation from reaching the second.
	* gcc.target/s390/target-attribute/tattr-4.c: Likewise.

From-SVN: r246459

This patch adds support for the new floating point vector elements (SF
and TF) introduced with arch12.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_expand_vec_compare): Support other
	vector floating point modes than just V2DF.
	(s390_expand_vcond): Likewise.
	(s390_hard_regno_mode_ok): Allow SFmode values in VRs.
	(s390_cannot_change_mode_class): Prevent mode changes between TF
	and V1TF in vector registers.
	* config/s390/s390.md (DF, SF): New mode attributes.
	("*cmp<mode>_ccs", "add<mode>3", "sub<mode>3", "mul<mode>3")
	("fma<mode>4", "fms<mode>4", "div<mode>3", "*neg<mode>2"): Add
	SFmode support for VRs.
	* config/s390/vector.md (V_HW, V_HW2, VT_HW, ti*, nonvec): Add new
	vector fp modes.
	(VFT, VF_HW): New mode iterators.
	(vw, sdx): New mode attributes.
	("addv2df3", "subv2df3", "mulv2df3", "divv2df3", "sqrtv2df2")
	("fmav2df4","fmsv2df4", "negv2df2", "absv2df2", "*negabsv2df2")
	("smaxv2df3", "sminv2df3", "*vec_cmp<VFCMP_HW_OP:code>v2df_nocc")
	("vec_cmpuneqv2df", "vec_cmpltgtv2df", "vec_orderedv2df")
	("vec_unorderedv2df"): Adjust the v2df only patterns to support
	also the new vector floating point modes.  Renaming to ...

	("add<mode>3", "sub<mode>3", "mul<mode>3", "div<mode>3")
	("sqrt<mode>2", "fma<mode>4", "fms<mode>4", "neg<mode>2")
	("abs<mode>2", "negabs<mode>2", "smax<mode>3")
	("smin<mode>3", "*vec_cmp<VFCMP_HW_OP:code><mode>_nocc")
	("vec_cmpuneq<mode>", "vec_cmpltgt<mode>", "vec_ordered<mode>")
	("vec_unordered<mode>"): ... these.

	("neg_fma<mode>4", "neg_fms<mode>4", "*smax<mode>3_vxe")
	("*smin<mode>3_vxe", "*sminv2df3_vx", "*vec_extendv4sf")
	("*vec_extendv2df"): New insn definitions.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

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

From-SVN: r246458

 instructions.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("*adddi3_sign", "*subdi3_sign", "mulditi3")
	("mulditi3_2", "*muldi3_sign"): New patterns.
	("muldi3", "*muldi3", "mulsi3", "*mulsi3"): Add an expander and
	rename the pattern definition.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/arch12/aghsghmgh-1.c: New test.
	* gcc.target/s390/arch12/mul-1.c: New test.
	* gcc.target/s390/arch12/mul-2.c: New test.

From-SVN: r246457

This adds support for the branch indirect instruction.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("indirect_jump"): Turn insn definition into
	expander.
	("*indirect_jump", "*indirect2_jump"): New pattern definitions.

From-SVN: r246456

This adds support for the vector load element and zero instruction and
makes sure it is used when initializing vectors with elements while
setting the rest to 0.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_expand_vec_init): Use vllezl
	instruction if possible.
	* config/s390/vector.md (vec_halfnumelts): New mode
	attribute.
	("*vec_vllezlf<mode>"): New pattern.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

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

From-SVN: r246455

arch12 provides pop count vector instructions for bigger elements than
just chars.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

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

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/vector.md ("popcountv16qi2", "popcountv8hi2")
	("popcountv4si2", "popcountv2di2"): Rename to ...
	("popcount<mode>2", "popcountv8hi2_vx", "popcountv4si2_vx")
	("popcountv2di2_vx"): ... these and add !TARGET_VXE to the
	condition.
	("popcount<mode>2_vxe"): New pattern.

From-SVN: r246454

 operations.

This patch adds support for the new bit operations introduced with
arch12.

The patch also renames the one complement pattern to the proper RTL
standard name.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_rtx_costs): Return low costs for the
	canonical form of ~AND to make sure the new instruction will be
	used.
	* config/s390/vector.md ("notand<mode>3", "ior_not<mode>3")
	("notxor<mode>3"): Add new pattern definitions.
	("*not<mode>"): Rename to ...
	("one_cmpl<mode>2"): ... this.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

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

From-SVN: r246453

This patch covers the mechanical work of making the new architecture
option arch12 available wherever it will be needed later.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/s390.exp: Run tests in arch12 and vxe dirs.
	* lib/target-supports.exp: Add effective target check s390_vxe.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* common/config/s390/s390-common.c (processor_flags_table): Add
	arch12.
	* config.gcc: Add arch12.
	* config/s390/driver-native.c (s390_host_detect_local_cpu):
	Default to arch12 for unknown CPU model numbers.
	* config/s390/s390-builtins.def: Add B_VXE builtin flag.
	* config/s390/s390-c.c (s390_cpu_cpp_builtins_internal): Adjust
	PROCESSOR_max sanity check.
	* config/s390/s390-opts.h (enum processor_type): Add
	PROCESSOR_ARCH12.
	* config/s390/s390.c (processor_table): Add arch12.
	(s390_expand_builtin): Add check for B_VXE flag.
	(s390_issue_rate): Add PROCESSOR_ARCH12.
	(s390_get_sched_attrmask): Likewise.
	(s390_get_unit_mask): Likewise.
	(s390_sched_score): Enable z13 scheduling for arch12.
	(s390_sched_reorder): Likewise.
	(s390_sched_variable_issue): Likewise.
	* config/s390/s390.h (enum processor_flags): Add PF_ARCH12 and
	PF_VXE.
	(s390_tune_attr): Use z13 scheduling also for arch12.
	(TARGET_CPU_ARCH12, TARGET_CPU_ARCH12_P, TARGET_CPU_VXE)
	(TARGET_CPU_VXE_P, TARGET_ARCH12, TARGET_ARCH12_P, TARGET_VXE)
	(TARGET_VXE_P): New macros.
	* config/s390/s390.md: Add arch12 to cpu attribute.  Add arch12
	and vxe to cpu_facility.  Add arch12 and vxe to enabled attribute.
	* config/s390/s390.opt: Add arch12 as processor_type.

From-SVN: r246452

This reworks the fixuns_trunc* patterns a bit which got quite confusing
after adding z13 support.  Now we just have a single RTL standard name
expander definition ("fixuns_trunc<FP:mode><GPR:mode>2") which then
multiplexes to either the emulation variants *_emu or the hardware
implementations.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md
	("fixuns_truncdddi2", "fixuns_trunctddi2")
	("fixuns_trunc<BFP:mode><GPR:mode>2"): Merge into ...
	("fixuns_trunc<FP:mode><GPR:mode>2"): New expander.

	("fixuns_trunc<BFP:mode><GPR:mode>2", "fixuns_trunc<mode>si2"):
	Rename expanders to ...

	("fixuns_trunc<BFP:mode><GPR:mode>2_emu")
	("fixuns_truncdddi2_emu"): ... these.

	("fixuns_trunc<mode>si2_emu"): New expander.

	("*fixuns_truncdfdi2_z13"): Rename to ...
	("*fixuns_truncdfdi2_vx"): ... this.

From-SVN: r246451

The z13 vector support used the vector style comparison instructions
also for the scalar compares in vector registers.  However, it is much
more convenient to just use the compare scalar instruction for that
purpose.  The advantage is that this instruction generates a CC result
as our compares usually do.  So this results in quite some code to be
removed from the backend.

Regression tested on s390x.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/2964.md: Remove the single element vector compare
	instructions which are no longer used.
	* config/s390/s390.c (s390_select_ccmode): Remove handling of
	vector CCmodes.
	(s390_canonicalize_comparison): Remove handling of DFmode
	compares.
	(s390_expand_vec_compare_scalar): Remove function.
	(s390_emit_compare): Don't call s390_expand_vec_compare_scalar.
	* config/s390/s390.md ("*vec_cmp<insn_cmp>df_cconly"): Remove
	pattern.
	("*cmp<mode>_ccs"): Add wfcdb instruction.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/vector/vec-scalar-cmp-1.c: Adjust for the
	comparison instructions used from now on.

From-SVN: r246450

Move the target support routine for the vector facility to the common
code file.  This is required to enable the generic vectorization tests
on S/390.  While doing this the too generic name for the check (vector)
is changed to s390_vx.  The renaming required to modify all the
testcases currently using that check.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/s390.exp (check_effective_target_vector):
	Include target-supports.exp and move target_vector check routine
	...
	* lib/target-supports.exp (check_effective_target_s390_vx): ... to
	here and rename it.
	* gcc.target/s390/htm-builtins-z13-1.c: Rename effective target
	check from vector to s390_vx.
	* gcc.target/s390/target-attribute/tpragma-struct-vx-1.c: Likewise.
	* gcc.target/s390/target-attribute/tpragma-struct-vx-2.c: Likewise.
	* gcc.target/s390/vector/stpcpy-1.c: Likewise.
	* gcc.target/s390/vector/vec-abi-vararg-1.c: Likewise.
	* gcc.target/s390/vector/vec-clobber-1.c: Likewise.
	* gcc.target/s390/vector/vec-genbytemask-1.c: Likewise.
	* gcc.target/s390/vector/vec-genmask-1.c: Likewise.
	* gcc.target/s390/vector/vec-nopeel-1.c: Likewise.
	* gcc.target/s390/vector/vec-vrepi-1.c: Likewise.

From-SVN: r246449

This patch add the vector load element from immediate instruction to the
movdf/dd pattern for loading a FP zero and it removes the vector
instructions from the mov<mode>_64 pattern. These were pointless in
there because z13 support implies DFP support so these instructions will
always be matched in the mov<mode>_64dfp pattern instead.

Regression tested on s390x

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("mov<mode>_64dfp" DD_DF): Use vleig for loading a
	FP zero.
	("*mov<mode>_64" DD_DF): Remove the vector instructions. These
	will anyway by matched by mov<mode>_64dfp.

From-SVN: r246448

The SD/SFmode move pattern used a wrong mnemonic for vector load
element.
On the vector load element instruction was an operand missing.

Regression tested on s390x.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md ("mov<mode>" SD_SF): Change vleg/vsteg to
	vlef/vstef.  Add missing operand to vleif.

From-SVN: r246447

This enables the vec_init pattern also for V4SF, V1TI, and V1TF.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/vector/vec-init-2.c: New test.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_expand_vec_init): Enable vector load
	pair for all vector types with 64 bit elements.
	* config/s390/vx-builtins.md (V_HW_64): Move mode iterator to ...
	* config/s390/vector.md (V_HW_64): ... here.
	(V_128_NOSINGLE): New mode iterator.
	("vec_init<V_HW:mode>"): Use V_128 as mode iterator.
	("*vec_splat<mode>"): Use V_128_NOSINGLE mode iterator.
	("*vec_tf_to_v1tf", "*vec_ti_to_v1ti"): New pattern definitions.
	("*vec_load_pairv2di"): Change to ...
	("*vec_load_pair<mode>"): ... this one.

From-SVN: r246446

This patch improves the handling of 128 bit vectors residing in GPRs
by adding more alternatives to the move pattern.

Regression tested on s390x.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/constraints.md: Add comments.
	(jKK): Reject element sizes > 8 bytes.
	* config/s390/s390.c (s390_split_ok_p): Enable splitting also for
	s_operands.
	* config/s390/s390.md: Add the s_operand checks formerly in
	s390_split_ok_p to various splitters where they are still
	required.
	* config/s390/vector.md ("mov<mode>" V_128): Add GPR alternatives
	for 128 bit vectors.  Plus two splitters.

From-SVN: r246445

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.md: Rename the cpu facilty vec to vx throughout
	the file.

From-SVN: r246444

We accept reg + sym_ref as valid address if sym_ref is a literal pool
reference knowing that it will be rewritten as r13 + reg + offset.
However, annotate_constant_pool_refs was never able to handle that.

With the patch only single sym_refs are accepted.

Regression tested on s390x.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/79904
	* config/s390/s390.c (s390_decompose_address): Reject reg +
	sym_ref literal pool references.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.dg/ubsan/pr79904-2.c: New test.

From-SVN: r246443

The boundary argument of the vec_load_bndry builtin needs to be
rewritten.  At that point it must be constant already.  The current
diagnostics in s390_expand_builtins is too late for this.  The patch
adds an additional check for that builtin which will be triggered
already during preprocessing.

Regression tested on s390x.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/79893
	* gcc.target/s390/zvector/pr79893.c: New test.

gcc/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	PR target/79893
	* config/s390/s390-c.c (s390_adjust_builtin_arglist): Issue an
	error if the boundary argument is not constant.

From-SVN: r246442

	PR rtl-optimization/80112
	* loop-doloop.c (doloop_condition_get): Don't check condition
	if cmp isn't SET with IF_THEN_ELSE src.

	* gcc.dg/pr80112.c: New test.

From-SVN: r246441

	* c-c++-common/Wimplicit-fallthrough-7.c: Adjust dg-warning
	etc. line numbers.
	* gcc.dg/Walloca-1.c: Likewise.
	* gcc.dg/Walloca-2.c: Likewise.
	* gcc.dg/Wvla-larger-than-2.c: Likewise.

From-SVN: r246440