PR c/91192
* c-parser.c (c_parser_sizeof_expression): Call set_c_expr_source_range
even if finish is UNKNOWN_LOCATION, just use start as finish in that
case.
From-SVN: r273935
gcc/ChangeLog:
* config.gcc (hppa*-*-netbsd*): New target.
* config/pa/pa-netbsd.h: New file.
* config/pa/pa32-netbsd.h: New file.
libgcc/ChangeLog:
* config.host (hppa*-*-netbsd*): New case.
* config/pa/t-netbsd: New file.
Co-Authored-By: Matthew Green <mrg@eterna.com.au>
Co-Authored-By: Maya Rashish <coypu@sdf.org>
Co-Authored-By: Nick Hudson <nick@nthcliff.demon.co.uk>
From-SVN: r273933
2019-07-31 Richard Biener <rguenther@suse.de>
* vr-values.h (vr_values::swap_vr_value): New.
(vr_values::free_value_range): likewise.
* vr-values.c (vr_values::swap_vr_value): Implement.
* gimple-ssa-evrp-analyze.h (evrp_range_analyzer::pop_value_range):
Do not return a range or take a var.
(evrp_range_analyzer::stack): Change back to recording a non-const
value_range *.
* gimple-ssa-evrp-analyze.c
(evrp_range_analyzer::record_ranges_from_stmt): Free unused
value-range.
(evrp_range_analyzer::pop_to_marker): Adjust.
(evrp_range_analyzer::push_value_range): Use new swap_vr_value.
(evrp_range_analyzer::pop_value_range): Likewise. Free the
no longer needed value-range.
From-SVN: r273930
2019-07-31 Martin Liska <mliska@suse.cz>
* tree-ssa-dce.c (propagate_necessity): Delete operator can
have size and (or) alignment as 2nd and later arguments.
Mark all of them as necessary.
From-SVN: r273929
PR tree-optimization/91201
* config/i386/sse.md (reduc_plus_scal_v16qi): New expander.
(REDUC_PLUS_MODE): Add V32QImode for TARGET_AVX and V64QImode for
TARGET_AVX512F.
(reduc_plus_scal_<mode>): Improve formatting by introducing
a temporary.
* gcc.target/i386/sse2-pr91201.c: New test.
* gcc.target/i386/avx2-pr91201.c: New test.
* gcc.target/i386/avx512bw-pr91201.c: New test.
From-SVN: r273927
At present it is possible to call the CMSE functions for checking
addresses (such as cmse_check_address_range) and forget to check/use
the return value. This patch makes the interfaces more robust against
programmer error by marking these functions with the warn_unused_result
attribute. With this set, any use of these functions that does not use
the result will produce a warning.
This produces a warning on default warn levels when the result of the
cmse functions is not used.
For the following function:
void foo()
{
int *data;
cmse_check_address_range((int*)data, 0, 0);
}
The following warning is emitted:
warning: ignoring return value of 'cmse_check_address_range' declared
with attribute 'warn_unused_result' [-Wunused-result]
6 | cmse_check_address_range((int*)data, 0, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcc/ChangeLog:
2019-07-31 Joel Hutton <Joel.Hutton@arm.com>
* config/arm/arm_cmse.h (cmse_nonsecure_caller): Add
warn_unused_result attribute.
(cmse_check_address_range): Add warn_unused_result attribute.
libgcc/ChangeLog:
2019-07-31 Joel Hutton <Joel.Hutton@arm.com>
* config/arm/cmse.c (cmse_check_address_range): Add
warn_unused_result attribute.
2019-07-31 Joel Hutton <Joel.Hutton@arm.com>
* gcc.target/arm/cmse/cmse-17.c: New test.
From-SVN: r273924
2019-07-31 Richard Biener <rguenther@suse.de>
PR tree-optimization/91257
* tree-vrp.c (union_ranges): Unify equality and less tests
by using compare_values. Re-order cheap tests first.
From-SVN: r273923
PR middle-end/91301
* gimplify.c (gimplify_omp_for): If for class iterator on
distribute parallel for there is no data sharing clause
on inner_for_stmt, look for private clause on combined
parallel too and if found, move it to inner_for_stmt.
* testsuite/libgomp.c++/for-27.C: New test.
From-SVN: r273922
lra_insn_reg and lra_operand_data have both a bitmask of earlyclobber
alternatives and an overall boolean. The danger is that we then test
the overall boolean when really we should be testing for a particular
alternative. This patch gets rid of the boolean and tests the mask
against zero when we really do need to test "any alternative might
be earlyclobber". (I think the only instance of that is the
LRA_UNKNOWN_ALT handling in lra-lives.c:reg_early_clobber_p.)
This is needed (and tested) by an upcoming SVE patch.
2019-07-31 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* lra-int.h (lra_operand_data): Remove early_clobber field.
(lra_insn_reg): Likewise.
* lra.c (debug_operand_data): Update accordingly.
(setup_operand_alternative): Likewise.
(new_insn_reg): Likewise. Remove early_clobber parameter.
(collect_non_operand_hard_regs): Update call accordingly.
Don't assign to lra_insn_reg::early_clobber.
(add_regs_to_insn_regno_info): Remove early_clobber parameter
and update calls to new_insn_reg.
(lra_update_insn_regno_info): Update calls accordingly.
* lra-constraints.c (update_and_check_small_class_inputs): Take the
alternative number as a parameter and test whether the operand
is earlyclobbered in that particular alternative.
(process_alt_operands): Update call accordingly. Use per-alternative
checks for earyclobber here too.
* lra-lives.c (reg_early_clobber_p): Check early_clobber_alts
against zero for IRA_UNKNOWN_ALT.
From-SVN: r273921
2019-07-30 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/91296
* interface.c (compare_actual_expr): When checking for aliasing, add
a case to handle REF_INQUIRY (e.g., foo(x%re, x%im) do not alias).
2019-07-30 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/91296
* gfortran.dg/pr91296.f90: New test.
From-SVN: r273914
My previous change to the Thumb-2 movsi patterns caused a codesize regression
with -Os in large functions. Fix this by using the literal pool offset of the
16-bit literal load so that the literal pool is dumped earlier, reducing the
number of 32-bit literal loads.
Bootstrap & regress OK on arm-none-linux-gnueabihf --with-cpu=cortex-a57
gcc/
* config/arm/thumb2.md (thumb2_movsi_insn): Adjust literal offset.
* config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
From-SVN: r273911
2019-07-30 Martin Liska <mliska@suse.cz>
PR ipa/89330
* cgraph.c (cgraph_edge::make_direct): Use
edge->indirect_unknown_callee as edge->resolve_speculation can
deallocate edge which is this pointer.
From-SVN: r273910
2019-07-30 Martin Liska <mliska@suse.cz>
* doc/invoke.texi: Document new behavior.
* lto-wrapper.c (cpuset_popcount): New function
is a copy of libgomp/config/linux/proc.c.
(init_num_threads): Likewise.
(run_gcc): Automatically detect core count for -flto.
(jobserver_active_p): New function.
From-SVN: r273908
2019-07-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/91257
* bitmap.h (bitmap_ior_into_and_free): Declare.
* bitmap.c (bitmap_list_unlink_element): Add defaulted param
whether to add the unliked element to the freelist.
(bitmap_list_insert_element_after): Add defaulted param for
an already allocated element.
(bitmap_ior_into_and_free): New function.
* tree-ssa-structalias.c (condense_visit): Reduce the
ponts-to and edge bitmaps of the SCC members in a
logarithmic fashion rather than all to one.
From-SVN: r273907
2019-07-30 Martin Liska <mliska@suse.cz>
PR tree-optimization/91270
* tree-ssa-dce.c (propagate_necessity): Mark 2nd argument
of delete operator as needed.
2019-07-30 Martin Liska <mliska@suse.cz>
PR tree-optimization/91270
* g++.dg/torture/pr91270.C: New test.
From-SVN: r273906
This patch extends the FMA handling in tree-ssa-math-opts.c so
that it can cope with conditional multiplications as well as
unconditional multiplications. The addition or subtraction must then
have the same condition as the multiplication (at least for now).
E.g. we can currently fold:
(IFN_COND_ADD cond (mul x y) z fallback)
-> (IFN_COND_FMA cond x y z fallback)
This patch also allows:
(IFN_COND_ADD cond (IFN_COND_MUL cond x y <whatever>) z fallback)
-> (IFN_COND_FMA cond x y z fallback)
2019-07-30 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-ssa-math-opts.c (convert_mult_to_fma): Add a mul_cond
parameter. When nonnull, make sure that the addition or subtraction
has the same condition.
(math_opts_dom_walker::after_dom_children): Try convert_mult_to_fma
for CFN_COND_MUL too.
gcc/testsuite/
* gcc.dg/vect/vect-cond-arith-7.c: New test.
From-SVN: r273905
PR middle-end/91216
* omp-low.c (global_nonaddressable_vars): New variable.
(use_pointer_for_field): For global decls, if they are non-addressable,
remember it in the global_nonaddressable_vars bitmap, if they are
addressable and in the global_nonaddressable_vars bitmap, ignore their
TREE_ADDRESSABLE bit.
(omp_copy_decl_2): Clear TREE_ADDRESSABLE also on private copies of
vars in global_nonaddressable_vars bitmap.
(execute_lower_omp): Free global_nonaddressable_vars bitmap.
* gcc.dg/gomp/pr91216.c: New test.
From-SVN: r273898
PR target/91150
* config/i386/i386-expand.c (expand_vec_perm_blend): Change mask type
from unsigned to unsigned HOST_WIDE_INT. For E_V64QImode cast
comparison to unsigned HOST_WIDE_INT before shifting it left.
* gcc.target/i386/avx512bw-pr91150.c: New test.
From-SVN: r273897
* config/i386/i386.md (movstrict<mode>): Use register_operand
predicate for operand 0. Add expander condition. Assert that
operand 0 is a SUBREG RTX.
(*movstrict<mode>_1): Use register_operand predicate for operand 0.
Update operand constraints and insn condition.
(zero_extend<mode>si2_and): Do not call gen_movstrict<mode>.
(zero_extendqihi2_and): Do not call gen_movstrictqi.
(*setcc_qi_slp): Use register_operand predicate for operand 0.
Update operand 0 constraints.
(setcc_qi_slp splitters): Use register_operand predicate for operand 0.
From-SVN: r273891
gcc/ChangeLog:
2019-07-29 Jozef Lawrynowicz <jozef.l@mittosystems.com>
* config/msp430/msp430.h (DRIVER_SELF_SPECS): Define and emit errors
when -m{code,data}-region are used without -mlarge.
* config/msp430/msp430.c (msp430_option_override): Error when a
non-default code or data region is used without -mlarge.
(msp430_section_attr): Emit a warning and do not add upper/lower/either
attributes when they are used without -mlarge.
gcc/testsuite/ChangeLog:
2019-07-29 Jozef Lawrynowicz <jozef.l@mittosystems.com>
* gcc.target/msp430/pr78818-data-region.c: Add -mlarge to dg-options.
* gcc.target/msp430/region-misuse-code.c: New test.
* gcc.target/msp430/region-misuse-data.c: Likewise.
* gcc.target/msp430/region-misuse-code-data.c: Likewise.
* gcc.target/msp430/region-attribute-misuse.c: Likewise.
From-SVN: r273884
inchash:#️⃣:add_wide_int operated directly on the raw encoding
of the wide_int, including any redundant upper bits. The problem
with that is that the upper bits are only defined for some wide-int
storage types (including wide_int itself). wi::to_wide(tree) instead
returns a value that is extended according to the signedness of the
type (so that wi::to_widest can use the same encoding) while rtxes
have the awkward special case of BI, which can be zero-extended
rather than sign-extended.
In the PR, we computed a hash for a "normal" sign-extended wide_int
while the existing entries hashed wi::to_wide(tree). This gives
different results for unsigned types that have the top bit set.
The patch fixes that by hashing the canonical sign-extended form even
if the raw encoding happens to be different.
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* wide-int.h (generic_wide_int::sext_elt): New function.
* inchash.h (hash::add_wide_int): Use it instead of elt.
From-SVN: r273881
2019-07-29 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/90813
* dump-parse-tree.c (show_global_symbol): New function.
(gfc_dump_global_symbols): New function.
* gfortran.h (gfc_traverse_gsymbol): Add prototype.
(gfc_dump_global_symbols): Likewise.
* invoke.texi: Document -fdump-fortran-global.
* lang.opt: Add -fdump-fortran-global.
* parse.c (gfc_parse_file): Handle flag_dump_fortran_global.
* symbol.c (gfc_traverse_gsymbol): New function.
* trans-decl.c (sym_identifier): New function.
(mangled_identifier): New function, doing most of the work
of gfc_sym_mangled_identifier.
(gfc_sym_mangled_identifier): Use mangled_identifier. Add mangled
identifier to global symbol table.
(get_proc_pointer_decl): Use backend decl from global identifier
if present.
From-SVN: r273880
The builtins from <arm_acle.h> use fairly general expander names such as
"crc", "mcr" etc.
These run the risk of being reserved by the midend in the future.
Let's namespace them to arm_* as is convention.
* config/arm/arm-builtins.c (acle_builtin_data): Expand VAR1 to
CODE_FOR_arm_##.
* config/arm/arm.md (<crc_variant>): Rename to...
(arm_<crc_variant>): ... This.
(<cdp>): Rename to...
(arm_<cdp>): ... This.
(<ldc>): Rename to...
(arm_<ldc>): ... This.
(<stc>): Rename to...
(arm_<stc>): ... This.
(<mcr>): Rename to...
(arm_<mcr>): ... This.
(<mrc>): Rename to...
(arm_<mrc>): ... This.
(<mcrr>): Rename to...
(arm_<mcrr>): ... This.
(<mrrc>): Rename to...
(arm_<mrrc>): ... This.
From-SVN: r273879
The recursive_init_error class is defined in a header, with an inline
constructor, but the definition of the vtable and destructor are not
exported from the shared library. With -fkeep-inline-functions the
constructor gets emitted in user code, and requires the (non-exported)
vtable. This fails to link.
As far as I can tell, the recursive_init_error class definition was
moved into <cxxabi.h> so it could be documented with Doxygen, not for
any technical reason. But now it's there (and documented), somebody
could be relying on it, by catching that type and possibly performing
derived-to-base conversions to the std::exception base class. So the
conservative fix is to leave the class definition in the header but make
the constructor non-inline. This still allows the type to be caught and
still defines its base class. User code can no longer construct objects
of that type, but that's not something we need to support.
PR libstdc++/51333
* libsupc++/cxxabi.h (__gnu_cxx::recursive_init_error): Do not define
constructor inline.
* libsupc++/guard_error.cc (__gnu_cxx::recursive_init_error): Define
constructor.
* testsuite/18_support/51333.cc: New test.
From-SVN: r273878
2019-07-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/91257
* tree-vrp.c (operand_less_p): Avoid dispatching to fold for
most cases, instead call compare_values which handles the
symbolic ranges we handle specially.
(compare_values_warnv): Do not call operand_less_p but open-code
the effective fold calls. Avoid converting so much.
From-SVN: r273876
2019-07-29 Martin Liska <mliska@suse.cz>
* tree-ssa-dce.c (eliminate_unnecessary_stmts): Do not
remove LHS of operator new call. It's handled latter.
2019-07-29 Martin Liska <mliska@suse.cz>
* g++.dg/cpp1y/new1.C (test_unused): Add new case that causes
ICE.
From-SVN: r273875
DCE tries to delete dead stores to local data and also tries to insert
debug binds for simple cases:
/* If this is a store into a variable that is being optimized away,
add a debug bind stmt if possible. */
if (MAY_HAVE_DEBUG_BIND_STMTS
&& gimple_assign_single_p (stmt)
&& is_gimple_val (gimple_assign_rhs1 (stmt)))
{
tree lhs = gimple_assign_lhs (stmt);
if ((VAR_P (lhs) || TREE_CODE (lhs) == PARM_DECL)
&& !DECL_IGNORED_P (lhs)
&& is_gimple_reg_type (TREE_TYPE (lhs))
&& !is_global_var (lhs)
&& !DECL_HAS_VALUE_EXPR_P (lhs))
{
tree rhs = gimple_assign_rhs1 (stmt);
gdebug *note
= gimple_build_debug_bind (lhs, unshare_expr (rhs), stmt);
gsi_insert_after (i, note, GSI_SAME_STMT);
}
}
But this doesn't help for things like "print *ptr" when ptr points
to the local variable (tests Og-dce-1.c and Og-dce-2.c). It can
also introduce wrong debug info for earlier references (second test
in Og-dce-3.c) or make earlier references unavailable (first test
in Og-dce-3.c).
So for -Og I think it'd be better not to delete any stmts with
vdefs for now. This also means that we can avoid the potentially
expensive vop walks (which already have a cut-off, but still).
The patch also fixes the Og failures in gcc.dg/guality/pr54970.c
(PR 86638).
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
PR debug/86638
* tree-ssa-dce.c (keep_all_vdefs_p): New function.
(mark_stmt_if_obviously_necessary): Mark all stmts with vdefs as
necessary if keep_all_vdefs_p is true.
(mark_aliased_reaching_defs_necessary): Add a gcc_checking_assert
that keep_all_vdefs_p is false.
(mark_all_reaching_defs_necessary): Likewise.
(propagate_necessity): Skip the vuse scan if keep_all_vdefs_p is true.
gcc/testsuite/
* c-c++-common/guality/Og-dce-1.c: New test.
* c-c++-common/guality/Og-dce-2.c: Likewise.
* c-c++-common/guality/Og-dce-3.c: Likewise.
From-SVN: r273872
This patch stops gimple and rtl DSE from running by default at -Og.
The idea is both to improve compile time and to stop us from deleting
stores that we can't track in debug info.
We could rein this back in future for stores to local variables
with is_gimple_reg_type, but at the moment we don't have any
infrastructure for switching between binds to specific values
and binds to evolving memory locations. Even then, location
tracking only works for direct references to the variables, and doesn't
for example help with printing dereferenced pointers (see the next patch
in the series for an example).
I'm also not sure that DSE is important enough for -Og to justify the
compile time cost -- especially in the case of RTL DSE, which is pretty
expensive.
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* common.opt (Og): Change the initial value of flag_dse to 0.
* opts.c (default_options_table): Move OPT_ftree_dse from
OPT_LEVELS_1_PLUS to OPT_LEVELS_1_PLUS_NOT_DEBUG. Also add
OPT_fdse to OPT_LEVELS_1_PLUS_NOT_DEBUG. Put the OPT_ftree_pta
entry before the OPT_ftree_sra entry.
* doc/invoke.texi (Og): Add -fdse and -ftree-dse to the list
of flags disabled by Og.
gcc/testsuite/
* c-c++-common/guality/Og-global-dse-1.c: New test.
From-SVN: r273871
This patch prevents -Og from deleting stores to write-only variables,
so that the values are still available when debugging. This seems
more convenient than forcing users to use __attribute__((used))
(probably conditionally, if it's not something they want in release
builds).
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-cfg.c (execute_fixup_cfg): Don't delete stores to write-only
variables for -Og.
gcc/testsuite/
* c-c++-common/guality/Og-static-wo-1.c: New test.
* g++.dg/guality/guality.exp: Separate the c-c++-common tests into
"Og" and "general" tests. Run the latter at -O0 and -Og only.
* gcc.dg/guality/guality.exp: Likewise.
From-SVN: r273870
There isn't a 1:1 mapping from SVE intrinsics to SVE instructions,
but the intrinsics are still close enough to the instructions for
there to be a specific preferred sequence (or sometimes choice of
preferred sequences) for a given combination of operands. Sometimes
these sequences will be one instruction, sometimes they'll be several.
I therefore wanted a convenient way of matching the exact assembly
implementation of a given function. It's possible to do that using
single scan-assembler lines, but:
(a) they become hard to read for multiline matches
(b) the PASS/FAIL lines tend to be overly long
(c) it's useful to have a single place that skips over uninteresting
lines, such as entry block labels and .cfi_* directives, without
being overly broad
This patch therefore adds a new check-function-bodies dg-final test
that looks for specially-formatted comments. As a demo, the patch
converts the SVE vec_init tests to use the new harness instead of
scan-assembler.
The regexps in parse_function_bodies are fairly general, but might
still need to be extended in future for targets like Darwin or AIX.
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* doc/sourcebuild.texi (check-function-bodies): Document.
gcc/testsuite/
* lib/scanasm.exp (parse_function_bodies, check_function_body)
(check-function-bodies): New procedures.
* gcc.target/aarch64/sve/init_1.c: Use check-function-bodies
instead of scan-assembler.
* gcc.target/aarch64/sve/init_2.c: Likewise.
* gcc.target/aarch64/sve/init_3.c: Likewise.
* gcc.target/aarch64/sve/init_4.c: Likewise.
* gcc.target/aarch64/sve/init_5.c: Likewise.
* gcc.target/aarch64/sve/init_6.c: Likewise.
* gcc.target/aarch64/sve/init_7.c: Likewise.
* gcc.target/aarch64/sve/init_8.c: Likewise.
* gcc.target/aarch64/sve/init_9.c: Likewise.
* gcc.target/aarch64/sve/init_10.c: Likewise.
* gcc.target/aarch64/sve/init_11.c: Likewise.
* gcc.target/aarch64/sve/init_12.c: Likewise.
From-SVN: r273869
This patch uses the constant vector encoding scheme to handle
more cases of a VEC_DUPLICATE of another vector. Duplicating
any fixed-length vector is fine, and duplicating a variable-length
vector is OK as long as that vector is also a duplicate of a
fixed-length sequence.
Other cases fell through to:
if (VECTOR_MODE_P (mode) && GET_CODE (op) == CONST_VECTOR)
which was only expecting to deal with elementwise operations.
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* simplify-rtx.c (simplify_const_unary_operation): Fold a
VEC_DUPLICATE of a fixed-length vector even if the result
is variable-length. Likewise fold a duplicate of a
variable-length vector if the variable-length vector is
itself a duplicate of a fixed-length sequence.
(test_vector_ops_duplicate): Test more cases.
From-SVN: r273868
This patch extends the tree-level folding of variable-length vectors
so that it can also be used on rtxes. The first step is to move
the tree_vector_builder new_unary/binary_operator routines to the
parent vector_builder class (which in turn means adding a new
template parameter). The second step is to make simplify-rtx.c
use a direct rtx analogue of the VECTOR_CST handling in fold-const.c.
2019-07-29 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* vector-builder.h (vector_builder): Add a shape template parameter.
(vector_builder::new_unary_operation): New function, generalizing
the old tree_vector_builder function.
(vector_builder::new_binary_operation): Likewise.
(vector_builder::binary_encoded_nelts): Likewise.
* int-vector-builder.h (int_vector_builder): Update template
parameters to vector_builder.
(int_vector_builder::shape_nelts): New function.
* rtx-vector-builder.h (rtx_vector_builder): Update template
parameters to vector_builder.
(rtx_vector_builder::shape_nelts): New function.
(rtx_vector_builder::nelts_of): Likewise.
(rtx_vector_builder::npatterns_of): Likewise.
(rtx_vector_builder::nelts_per_pattern_of): Likewise.
* tree-vector-builder.h (tree_vector_builder): Update template
parameters to vector_builder.
(tree_vector_builder::shape_nelts): New function.
(tree_vector_builder::nelts_of): Likewise.
(tree_vector_builder::npatterns_of): Likewise.
(tree_vector_builder::nelts_per_pattern_of): Likewise.
* tree-vector-builder.c (tree_vector_builder::new_unary_operation)
(tree_vector_builder::new_binary_operation): Delete.
(tree_vector_builder::binary_encoded_nelts): Likewise.
* simplify-rtx.c: Include rtx-vector-builder.h.
(distributes_over_addition_p): New function.
(simplify_const_unary_operation)
(simplify_const_binary_operation): Generalize handling of vector
constants to include variable-length vectors.
(test_vector_ops_series): Add more tests.
From-SVN: r273867
