Give end users the opportunity to find out whether long doubles are
stored in floating-point register pairs or in vector registers, so that
they could fine-tune their asm statements.
gcc/ChangeLog:
2020-12-14 Ilya Leoshkevich <iii@linux.ibm.com>
* config/s390/s390-c.c (s390_def_or_undef_macro): Accept
callables instead of mask values.
(struct target_flag_set_p): New predicate.
(s390_cpu_cpp_builtins_internal): Define or undefine
__LONG_DOUBLE_VX__ macro.
2020-12-14 Ilya Leoshkevich <iii@linux.ibm.com>
gcc/testsuite/ChangeLog:
* gcc.target/s390/vector/long-double-vx-macro-off-on.c: New test.
* gcc.target/s390/vector/long-double-vx-macro-on-off.c: New test.
We shouldn't do replace_result_decl after evaluating a call that returns
a PMF because PMF temporaries aren't wrapped in a TARGET_EXPR (and so we
can't trust ctx->object), and PMF initializers can't be self-referential
anyway, so replace_result_decl would always be a no-op.
To that end, this patch changes the relevant AGGREGATE_TYPE_P test to
CLASS_TYPE_P, which should rule out PMFs (as well as arrays, which we
can't return and therefore won't see here). This fixes an ICE from the
sanity check in replace_result_decl in the below testcase during
constexpr evaluation of the call f() in the initializer g(f()).
gcc/cp/ChangeLog:
PR c++/98551
* constexpr.c (cxx_eval_call_expression): Check CLASS_TYPE_P
instead of AGGREGATE_TYPE_P before calling replace_result_decl.
gcc/testsuite/ChangeLog:
PR c++/98551
* g++.dg/cpp0x/constexpr-pmf2.C: New test.
In the first testcase below, we incorrectly reject the use of the
protected non-static member A::var0 from C<int>::g() because
check_accessibility_of_qualified_id, at template parse time, determines
that the access doesn't go through 'this'. (This happens because the
dependent base B<T> of C<T> doesn't have a binfo object, so it appears
to DERIVED_FROM_P that A is not an indirect base of C<T>.) From there
we create the corresponding deferred access check, which we then
perform at instantiation time and which (expectedly) fails.
The problem ultimately seems to be that we can't in general determine
whether a use of a scoped non-static member goes through 'this' until
instantiation time, as the second testcase below illustrates. So this
patch makes check_accessibility_of_qualified_id punt in such situations
to avoid creating a bogus deferred access check.
gcc/cp/ChangeLog:
PR c++/98515
* semantics.c (check_accessibility_of_qualified_id): Punt if
we're checking access of a scoped non-static member inside a
class template.
gcc/testsuite/ChangeLog:
PR c++/98515
* g++.dg/template/access32.C: New test.
* g++.dg/template/access33.C: New test.
For NO_PROFILE_COUNTERS targets, R11 is a scratch register. We can use
R10 and R11 to call mcount in large model with PIC.
gcc/
PR target/98482
* config/i386/i386.c (x86_function_profiler): Use R10 and R11
to call mcount in large model with PIC for NO_PROFILE_COUNTERS
targets.
gcc/testsuite/
PR target/98482
* gcc.target/i386/pr98482-2.c: Updated.
When running FRE in the loop pipeline (as part of the conditionally
scheduled scalar cleanups) we have to reset the SCEV hashtable as
otherwise we can end up with stale entries and all sorts of problems.
Catched by my out-of-tree verifier for this problem.
2021-01-08 Richard Biener <rguenther@suse.de>
* tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.
This plugs two memleaks in the vectorizer.
2021-01-08 Richard Biener <rguenther@suse.de>
* tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
(vect_build_slp_tree): On cache hit release the matched
scalar stmts vector.
* tree-vect-stmts.c (vectorizable_store): Properly free
vec_oprnds before possibly gathering them again.
Permute nodes are not transparent to the permute of their children.
Instead we have to materialize child permutes always and in future
may treat permute nodes as the source of arbitrary permutes as
we can permute the lane permutation vector at will (as the target
supports in the end).
2021-01-08 Richard Biener <rguenther@suse.de>
PR tree-optimization/98544
* tree-vect-slp.c (vect_optimize_slp): Always materialize
permutes at a permute node.
* gcc.dg/vect/bb-slp-pr98544.c: New testcase.
R10 is caller-saved. Although it can be used as a static chain register,
it is preserved when calling mcount for nested functions. Use R10 as a
scratch register to call mcount in large model.
gcc/
PR target/98482
* config/i386/i386.c (x86_function_profiler): Use R10 to call
mcount in large model. Sorry for large model with PIC.
gcc/testsuite/
PR target/98482
* gcc.target/i386/pr98482-1.c: New test.
* gcc.target/i386/pr98482-1.c: Likewise.
My patch to save/restore opts_set rather than essentially treating
global_options_set as a logical or whether some option has ever been
explicitly set somewhere apparently broke -mcmodel= vs. target attribute
(and as the patch shows some other options too).
The thing is, at least for options for which we ever test opts_set->x_*
or global_options_set.x_*, we need to save/restore them next to the
saving/restoring of the actual option values.
If an option has Save keyword or in case of TargetVariable, it is the
generic code that handles the saving and restoring of both the option
and corresponding opts_set flag automatically, for other variables
(TargetSave, or Target without Save) the backend needs to do that in the
target hook manually and in that case should save/restore both the option
values (the hooks mostly did that) and opts_set (they didn't).
As it seems much easier to let the automatic saving/restoring do the work
for us unless the saving/restoring of the option needs some specific magic,
the following patch is a result of grepping through the backend for
opts_set->x_ and global_options_set.x_ and for all such referenced
variables, grepping whether it is saved/restored including opts_set properly
in the generated options-save.c or not.
2021-01-08 Jakub Jelinek <jakub@redhat.com>
PR target/98585
* config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
TargetSave and initialize for variables with enum types.
(mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
mstack-protector-guard-symbol=): Add Save.
* config/i386/i386-options.c (ix86_function_specific_save,
ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
x_ix86_veclibabi_type.
* gcc.target/i386/pr98585.c: New test.
This patch adds unpacked support for unconditional and
conditional CNOT. The type suffix has to be taken from
the element size rather than the container size.
gcc/
* config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
SVE_FULL_I to SVE_I.
(*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.
gcc/testsuite/
* gcc.target/aarch64/sve/cnot_2.c: New test.
* gcc.target/aarch64/sve/cond_cnot_4.c: Likewise.
* gcc.target/aarch64/sve/cond_cnot_4_run.c: Likewise.
* gcc.target/aarch64/sve/cond_cnot_5.c: Likewise.
* gcc.target/aarch64/sve/cond_cnot_5_run.c: Likewise.
* gcc.target/aarch64/sve/cond_cnot_6.c: Likewise.
* gcc.target/aarch64/sve/cond_cnot_6_run.c: Likewise.
This patch extends the conditional UXT patterns from SVE_FULL_I
to SVE_I. It doesn't matter in this case whether the type suffix
is taken from the element size or the container size.
gcc/
* config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
SVE_FULL_I to SVE_I.
(*cond_uxt<mode>_any): Likewise.
gcc/testsuite/
* gcc.target/aarch64/sve/cond_uxt_5.c: New test.
* gcc.target/aarch64/sve/cond_uxt_5_run.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_6.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_6_run.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_7.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_7_run.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_8.c: Likewise.
* gcc.target/aarch64/sve/cond_uxt_8_run.c: Likewise.
This fixes a logical inconsistency with the SVE2 ACLE tests where the SVE2 tests
are checking for SVE support in the assembler instead of SVE2.
This makes all these tests fail when the user has an SVE enabled assembler but
not an SVE2 one.
gcc/testsuite/ChangeLog:
* lib/target-supports.exp
(check_effective_target_aarch64_asm_sve2_ok): New.
* g++.target/aarch64/sve2/acle/aarch64-sve2-acle-asm.exp: Use it.
* gcc.target/aarch64/sve2/acle/aarch64-sve2-acle-asm.exp: Likewise.
This patch reimplements most of the vpadal intrinsics to use RTL
builtins in the normal way.
The ones that aren't converted are the int32x2_t -> int64x1_t ones as
the RTL pattern doesn't currently handle
these modes. We don't have a V1DI mode so it would need to return a
DImode value or a V2DI one with the first lane
being the result. It's not hard to do, but it would require a bit more
refactoring so we can do it separately later.
This patch hopefully improves the status quo.
The new Vwhalf mode attribute is created because the existing Vwtype
attribute maps V8QI wrongly (for this pattern) to "8h" as the
suffix rather than "4h" as needed.
gcc/
* config/aarch64/iterators.md (Vwhalf): New iterator.
* config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
Rename to...
(aarch64_<sur>adalp<mode>): ... This. Make more
builtin-friendly.
(<sur>sadv16qi): Adjust callsite of the above.
* config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
builtins.
* config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
builtins.
(vpadal_s16): Likewise.
(vpadal_u8): Likewise.
(vpadal_u16): Likewise.
(vpadalq_s8): Likewise.
(vpadalq_s16): Likewise.
(vpadalq_s32): Likewise.
(vpadalq_u8): Likewise.
(vpadalq_u16): Likewise.
(vpadalq_u32): Likewise.
This patch reimplements the vaba* arm_neon.h intrinsics using RTL
builtins that expand to proper RTL patterns
rather than using inline asm.
The implementation is fairly straightforward by defining new builtins
and using them in the header.
gcc/
* config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
builtins.
* config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
(vaba_s16): Likewise.
(vaba_s32): Likewise.
(vaba_u8): Likewise.
(vaba_u16): Likewise.
(vaba_u32): Likewise.
(vabaq_s8): Likewise.
(vabaq_s16): Likewise.
(vabaq_s32): Likewise.
(vabaq_u8): Likewise.
(vabaq_u16): Likewise.
(vabaq_u32): Likewise.
Sometime ago we changed the RTL representation of the (SU)ABD
instructions in RTL to a (MINUS (MAX) (MIN)) rather than a (MINUS (ABS) (ABS))
as it is more correctly models the semantics.
We should do the same for the accumulation forms of these instructions:
UABA/SABA.
This patch does that and allows the new pattern to generate the unsigned
UABA form as well.
The new form also allows it to more easily be re-used to implement the
relevant arm_neon.h intrinsics in the future.
The testcase takes an -fno-tree-reassoc to work around a side-effect of
PR98581.
gcc/
* config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
(aarch64_<su>aba<mode>): ... This. Handle uaba as well.
Change RTL pattern to match.
gcc/testsuite/
* gcc.target/aarch64/usaba_1.c: New test.
2021-01-05 Paul Thomas <pault@gcc.gnu.org>
gcc/fortran
PR fortran/93794
* trans-expr.c (gfc_conv_component_ref): Remove the condition
that deferred character length components only be allocatable.
gcc/testsuite/
PR fortran/93794
* gfortran.dg/deferred_character_35.f90 : New test.
2021-01-08 Paul Thomas <pault@gcc.gnu.org>
gcc/fortran
PR fortran/98458
* simplify.c (is_constant_array_expr): If an array constructor
expression has elements other than constants or structures, try
fixing the expression with gfc_reduce_init_expr. Also, if shape
is NULL, obtain the array size and set it.
gcc/testsuite/
PR fortran/98458
* gfortran.dg/implied_do_3.f90 : New test.
- This patch introduce new set of architecture extension test macros
which is accept on riscv-c-api-doc recently.
- https://github.com/riscv/riscv-c-api-doc/blob/master/riscv-c-api.md#architecture-extension-test-macro
- We will also mark deprecated for legacy architecture extension test macros
in GCC 11, but still support that for 1 or 2 release cycles.
gcc/ChangeLog:
* common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
* config/riscv/riscv-c.c (riscv-subset.h): New.
(INCLUDE_STRING): Define.
(riscv_cpu_cpp_builtins): Add new style architecture extension
test macros.
* config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
(riscv_subset_list::end): New.
(riscv_current_subset_list): New.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/predef-10.c: New.
* gcc.target/riscv/predef-11.c: New.
* gcc.target/riscv/predef-12.c: New.
* gcc.target/riscv/predef-13.c: New.
Pre-work of new style of architecture extension test macros, we need the
list used in `config/riscv/riscv-c.c`, so those struct/class declaration
must move to header file rather than local C file.
gcc/ChangeLog
* common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
Move to riscv-subset.h.
(struct riscv_subset_t): Ditto.
(class riscv_subset_list): Ditto.
* config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
from riscv-common.c.
(struct riscv_subset_t): Ditto.
(class riscv_subset_list): Ditto.
* config/riscv/t-riscv ($(common_out_file)): Add file
dependency.
As the testcase shows, calling cp_build_bit_cast in tsubst_copy doesn't seem
to be a good idea, because tsubst_copy might not really make the operand
non-dependent, but as processing_template_decl can be 0,
type_dependent_expression_p will return false and then cp_build_bit_cast
assumes the type is non-NULL and non-dependent.
So, this patch just follows what is done e.g. for NOP_EXPR etc. and just
builds some tree in tsubst_copy, and only calls the semantics.c function
from tsubst_copy_and_build.
2021-01-07 Jakub Jelinek <jakub@redhat.com>
PR c++/98329
* pt.c (tsubst_copy) <case BIT_CAST_EXPR>: Don't call
cp_build_bit_cast here, instead just build_min a BIT_CAST_EXPR and set
its location.
(tsubst_copy_and_build): Handle BIT_CAST_EXPR.
* g++.dg/cpp2a/bit-cast10.C: New test.
This fixes a thinko in my r11-2085 patch: when I said "But only give the
!late_return_type errors when funcdecl_p, to accept e.g. auto (*fp)() = f;
in C++11" I should've done this, otherwise we give bogus errors mentioning
"function with trailing return type" when there is none.
gcc/cp/ChangeLog:
PR c++/98441
* decl.c (grokdeclarator): Move the !funcdecl_p check inside the
!late_return_type block.
gcc/testsuite/ChangeLog:
PR c++/98441
* g++.dg/cpp0x/auto55.C: New test.
Discussing the 98469 patch and class prvalues with Jakub led me to
double-check our handling of TARGET_EXPR in constexpr.c, and add a note
about why we don't strip them in parameter initialization. And another to
clarify that we're handling an INIT_EXPR in a place we do strip them.
gcc/cp/ChangeLog:
* constexpr.c (cxx_bind_parameters_in_call): Add comment.
(cxx_eval_store_expression): Add comment.
Another change I was working on revealed that for complex numbers we were
building a ck_identity with build_conv, leading to the wrong active member
in the union being set. Rather than add another enumeration of the
appropriate conversion codes, I factored that out.
gcc/cp/ChangeLog:
* call.c (has_next): Factor out from...
(next_conversion): ...here.
(strip_standard_conversion): And here.
(is_subseq): And here.
(build_conv): Check it.
(standard_conversion): Don't call build_conv
for ck_identity.
lto-streamer-out.c's get_symbol_initial_value can return error_mark_node
rather than DECL_INITIAL as an optimization to avoid extra sections for
simple scalar values.
Add a check to the analyzer to handle such cases gracefully.
gcc/analyzer/ChangeLog:
PR analyzer/98580
* region.cc (decl_region::get_svalue_for_initializer): Gracefully
handle when LTO writes out DECL_INITIAL as error_mark_node.
gcc/testsuite/ChangeLog:
PR analyzer/98580
* gcc.dg/analyzer/pr98580-a.c: New test.
* gcc.dg/analyzer/pr98580-b.c: New test.
The testcase was failing to compile on some targets due to its use of
the non-standard functions nextupl and nextdownl. This patch makes the
testcase instead use the C99 function nexttowardl in an equivalent way.
libstdc++-v3/ChangeLog:
PR libstdc++/98384
* testsuite/20_util/to_chars/long_double.cc: Use nexttowardl
instead of the non-standard nextupl and nextdownl.
2021-01-07 Paul Thomas <pault@gcc.gnu.org>
gcc/fortran
PR fortran/93701
* resolve.c (find_array_spec): Put static prototype for
resolve_assoc_var before this function and call for associate
variables.
gcc/testsuite/
PR fortran/93701
* gfortran.dg/associate_54.f90: New test.
* gfortran.dg/associate_55.f90: New test.
* gfortran.dg/associate_56.f90: New test.
Adds support for using user-defined attributes on function arguments and
single-parameter alias declarations. These attributes behave analogous
to existing UDAs.
gcc/d/ChangeLog:
* dmd/MERGE: Merge upstream dmd 9038e64c5.
* d-builtins.cc (build_frontend_type): Update call to
Parameter::create.
We do not tolerate "growing" a vector to a lower size.
2021-01-07 Richard Biener <rguenther@suse.de>
gcc/c/
* gimple-parser.c (c_parser_gimple_compound_statement): Only
reallocate loop array if it is too small.
The BLSI instruction sets SF and ZF based on the result and clears OF.
CF is set to something unrelated.
The following patch optimizes BLSI followed by comparison, so we don't need
to emit a TEST insn in between.
2021-01-07 Jakub Jelinek <jakub@redhat.com>
PR target/98567
* config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
New define_insn patterns.
* gcc.target/i386/pr98567-1.c: New test.
* gcc.target/i386/pr98567-2.c: New test.
This patch extends the conditional unary integer operations
from SVE_FULL_I to SVE_I. In each case the type suffix is
taken from the element size rather than the container size:
this matters for ABS and NEG, but doesn't matter for NOT.
gcc/
* config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
(*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
(*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.
gcc/testsuite/
* gcc.target/aarch64/sve/cond_unary_5.c: New test.
* gcc.target/aarch64/sve/cond_unary_5_run.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_6.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_6_run.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_7.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_7_run.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_8.c: Likewise.
* gcc.target/aarch64/sve/cond_unary_8_run.c: Likewise.
This patch follows on from the previous one for the PR and
makes sure that we can handle == as well as <. Previously
we assumed without checking that IFN_VCONDEQ was available
if IFN_VCOND or IFN_VCONDU wasn't.
The patch also fixes the definition of the IFN_VCOND* functions.
The optabs are convert optabs in which the first mode is the
data mode and the second mode is the comparison or mask mode.
gcc/
PR tree-optimization/98560
* internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
* internal-fn.c (vec_cond_mask_direct): Get the data mode from
argument 1.
(vec_cond_direct): Likewise argument 2.
(vec_condu_direct, vec_condeq_direct): Delete.
(expand_vect_cond_optab_fn): Rename to...
(expand_vec_cond_optab_fn): ...this, replacing old macro.
(expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
(expand_vect_cond_mask_optab_fn): Rename to...
(expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
(direct_vec_cond_mask_optab_supported_p): Treat the optab as a
convert optab.
(direct_vec_cond_optab_supported_p): Likewise.
(direct_vec_condu_optab_supported_p): Delete.
(direct_vec_condeq_optab_supported_p): Delete.
* gimple-isel.cc: Include internal-fn.h.
(gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
before using it.
gcc/testsuite/
PR tree-optimization/98560
* gcc.dg/vect/pr98560-2.c: New test.
PR98560 is about a case in which the vectoriser initially generates:
mask_1 = a < 0;
mask_2 = mask_1 & ...;
res = VEC_COND_EXPR <mask_2, b, c>;
The vectoriser thus expects res to be calculated using vcond_mask.
However, we later manage to fold mask_2 to mask_1, leaving:
mask_1 = a < 0;
res = VEC_COND_EXPR <mask_1, b, c>;
gimple-isel then required a combined vcond to exist.
On most targets, it's not too onerous to provide all possible
(compare x select) combinations. For each data mode, you just
need to provide unsigned comparisons, signed comparisons, and
floating-point comparisons, with the data mode and type of
comparison uniquely determining the mode of the compared values.
But for targets like SVE that support “unpacked” vectors,
it's not that simple: the level of unpacking adds another
degree of freedom.
Rather than insist that the combined versions exist, I think
we should be prepared to fall back to using separate comparisons
and vcond_masks. I think that makes more sense on targets like
AArch64 and AArch32 in which compares and selects are fundementally
separate operations anyway.
gcc/
PR tree-optimization/98560
* gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.
gcc/testsuite/
PR tree-optimization/98560
* gcc.dg/vect/pr98560-1.c: New test.
As the testcase shows, bswap can match even byte-swapping or indentity
from low part of some wider SSA_NAME.
For bswap replacement other than for vector CONSTRUCTOR the code has been
using NOP_EXPR casts if the types weren't compatible, but for vectors
we need to use VIEW_CONVERT_EXPR. The problem with the latter is that
we require that it has the same size, which isn't guaranteed, so this patch
in those cases first adds a narrowing NOP_EXPR cast and only afterwards
does a VIEW_CONVERT_EXPR.
2021-01-07 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/98568
* gimple-ssa-store-merging.c (bswap_view_convert): New function.
(bswap_replace): Use it.
* g++.dg/torture/pr98568.C: New test.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr92658-avx512bw.c: Add
-mprefer-vector-width=512 to avoid impact of different default
mtune which gcc is built with.
* gcc.target/i386/pr92658-avx512bw-2.c: Ditto.
gcc/analyzer/ChangeLog:
PR analyzer/97074
* store.cc (binding_cluster::can_merge_p): Add "out_store" param
and pass to calls to binding_cluster::make_unknown_relative_to.
(binding_cluster::make_unknown_relative_to): Add "out_store"
param. Use it to mark base regions that are pointed to by
pointers that become unknown as having escaped.
(store::can_merge_p): Pass out_store to
binding_cluster::can_merge_p.
* store.h (binding_cluster::can_merge_p): Add "out_store" param.
(binding_cluster::make_unknown_relative_to): Likewise.
* svalue.cc (region_svalue::implicitly_live_p): New vfunc.
* svalue.h (region_svalue::implicitly_live_p): New vfunc decl.
gcc/testsuite/ChangeLog:
PR analyzer/97074
* gcc.dg/analyzer/pr97074.c: New test.
This pulls in the toplevel portions of these binutils-gdb commits:
1ff6de031241c59d0ff bfd, ld: add CTF section linking
87279e3cef5b2c54f4a libctf: installable libctf as a shared library
c59e30ed1727135f8ef libctf: new testsuite
* Makefile.def: Sync with binutils-gdb:
(dependencies): all-ld depends on all-libctf.
(host_modules): libctf is no longer no_install.
No longer no_check. Checking depends on all-ld.
* Makefile.in: Regenerated.
LRA can crash when a hard register was split and the same hard register
was assigned on the previous assignment sub-pass. The following
patch fixes this problem.
gcc/ChangeLog:
PR rtl-optimization/97978
* lra-int.h (lra_hard_reg_split_p): New external.
* lra.c (lra_hard_reg_split_p): New global.
(lra): Set up lra_hard_reg_split_p after splitting a hard reg.
* lra-assigns.c (lra_assign): Don't check allocation correctness
after hard reg splitting.
gcc/testsuite/ChangeLog:
PR rtl-optimization/97978
* gcc.target/i386/pr97978.c: New.
