I was too sleepy writting this :(.

gcc/ChangeLog:

	* config/mips/mips-msa.md (neg<mode:MSA>2): Add missing mode for
	neg.

We expanded (neg x) to (minus const0 x) for MSA FP vectors, this is
wrong because -0.0 is not 0 - 0.0.  This causes some Python tests to
fail when Python is built with MSA enabled.

Use the bnegi.df instructions to simply reverse the sign bit instead.

gcc/ChangeLog:

	* config/mips/mips-msa.md (elmsgnbit): New define_mode_attr.
	(neg<mode>2): Change the mode iterator from MSA to IMSA because
	in FP arithmetic we cannot use (0 - x) for -x.
	(neg<mode>2): New define_insn to implement FP vector negation,
	using a bnegi instruction to negate the sign bit.

The following avoids different avail answers depending on how the
iteration progressed.

	PR tree-optimization/113707
	* tree-ssa-sccvn.cc (rpo_elim::eliminate_avail): After
	checking the avail set treat out-of-region defines as
	available.

	* gcc.dg/torture/pr113707-1.c: New testcase.
	* gcc.dg/torture/pr113707-2.c: Likewise.

The following makes sure to use the correct pointer mode when
building pointer types to a non-default address-space.

	* tree-vect-data-refs.cc (vect_create_data_ref_ptr): Use
	the default mode when building a pointer.

The following testcase ICEs, because group_case_labels_stmt optimizes
  switch (a.0_7) <default: <L6> [50.00%], case 0: <L7> [50.00%], case 2: <L7> [50.00%]>
where L7 block starts with __builtin_unreachable (); to
  switch (a.0_7) <default: <L6> [50.00%]>
and single label GIMPLE_SWITCH is something the switch expansion refuses to
lower:
  if (gimple_switch_num_labels (m_switch) == 1
      || range_check_type (index_type) == NULL_TREE)
    return false;
(range_check_type never returns NULL for BITINT_TYPE), but the gimple
lowering pass relies on all large/huge _BitInt switches to be lowered
by that pass.

The following patch just removes those after making the single successor
edge EDGE_FALLTHRU.  I've done it even if !optimize just in case in case
we'd end up with single case label from earlier passes.

2024-02-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/113737
	* gimple-lower-bitint.cc (gimple_lower_bitint): If GIMPLE_SWITCH
	has just a single label, remove it and make single successor edge
	EDGE_FALLTHRU.

	* gcc.dg/bitint-84.c: New test.

The move of the vzeroupper pass from after reload pass to after
postreload_cse helped only partially, CSE-like passes can still invalidate
those notes (especially REG_UNUSED) if they use some earlier register
holding some value later on in the IL.

So, either we could try to move it one pass further after gcse2 and hope
no later pass invalidates the notes, or the following patch attempts to
restore the REG_DEAD/REG_UNUSED state from GCC 13 and earlier, where
the LRA or reload passes remove all REG_DEAD/REG_UNUSED notes and the notes
reappear only at the start of dse2 pass when it calls
  df_note_add_problem ();
  df_analyze ();
So, effectively
          NEXT_PASS (pass_postreload_cse);
          NEXT_PASS (pass_gcse2);
          NEXT_PASS (pass_split_after_reload);
          NEXT_PASS (pass_ree);
          NEXT_PASS (pass_compare_elim_after_reload);
          NEXT_PASS (pass_thread_prologue_and_epilogue);
passes operate without those notes in the IL.
While in GCC 14 mode switching computes the notes problem at the start of
vzeroupper, the patch below removes them at the end of the pass again, so
that the above passes continue to operate without them.

2024-02-05  Jakub Jelinek  <jakub@redhat.com>

	PR target/113059
	* config/i386/i386-features.cc (rest_of_handle_insert_vzeroupper):
	Remove REG_DEAD/REG_UNUSED notes at the end of the pass before
	df_analyze call.

The following avoids re-using a register holding a pointer (and
thus might be REG_POINTER) for the result of a pointer difference
computation.  That might confuse heuristics in (broken) RTL alias
analysis which relies on REG_POINTER indicating that we're
dealing with one.

This alone doesn't fix anything.

	PR target/113255
	* config/i386/i386-expand.cc
	(expand_set_or_cpymem_prologue_epilogue_by_misaligned_moves):
	Use a new pseudo for the skipped number of bytes.

gcc/ChangeLog:

	* config/riscv/riscv-cores.def: Add sifive-p450, sifive-p670.
	* doc/invoke.texi (RISC-V Options): Add sifive-p450,
	sifive-p670.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/mcpu-sifive-p450.c: New test.
	* gcc.target/riscv/mcpu-sifive-p670.c: New test.

Add sifive p400 series scheduler module. For more information
see https://www.sifive.com/cores/performance-p450-470.

gcc/ChangeLog:

	* config/riscv/riscv.md: Include sifive-p400.md.
	* config/riscv/sifive-p400.md: New file.
	* config/riscv/riscv-cores.def (RISCV_TUNE): Add parameter.
	* config/riscv/riscv-opts.h (enum riscv_microarchitecture_type):
	Add sifive_p400.
	* config/riscv/riscv.cc (sifive_p400_tune_info): New.
	* config/riscv/riscv.h (TARGET_SFB_ALU): Update.
	* doc/invoke.texi (RISC-V Options): Add sifive-p400-series

This ensures that the unused bits will be zero-initialized reliably, and
so can be used later by assigning them values in formatter
specializations. For example, formatters for std::chrono will need to
use an extra bit for a boolean flag to optimize the conversions between
locale encodings and UTF-8.

Adding the 16-bit _M_reserved2 bit-field results in an increased size
for targets that use 1- or 2-byte alignment for all integral types, e.g.
cris-elf or m68k.  Placing that member before the _M_width member
adjusts the layout for all targets, but keeps all the bit-fields
together. We can't make that change once C++20 support is ABI stable and
non-experimental, so do it now before GCC 14 is released. The _M_fill
data member already change from char to char32_t in
r14-6991-g37a4c5c23a270c so _Spec is already incompatible with gcc-13
anyway.

libstdc++-v3/ChangeLog:

	* include/std/format (__format::_Spec::_M_reserved): Define new
	bit-field members to reserve padding bits for future extensions.

In r14-3812-gb96b554592c5cb I claimed that libstdc++exp.a now contains
all the symbols from libstdc++fs.a as well as libstdc++_libbacktrace.a,
but that wasn't true. Only the symbols from the latter were added to
libstdc++exp.a, the Filesystem TS ones weren't. This seems to be because
libtool won't combine static libs that are going to be installed
separately. Because libstdc++fs.a is still installed, libtool decides it
shouldn't be included in libstdc++exp.a.

The solution is similar to what we already do for libsupc++.a: build two
static libs, libstdc++fs.a and libstdc++fsconvenience.a, where the
former is installed and the latter isn't. If we then tell libtool to
include the latter in libstdc++exp.a it will do as it's told.

libstdc++-v3/ChangeLog:

	* src/experimental/Makefile.am: Use libstdc++fsconvenience.a
	instead of libstdc++fs.a.
	* src/experimental/Makefile.in: Regenerate.
	* src/filesystem/Makefile.am: Build libstdc++fsconvenience.a as
	well.
	* src/filesystem/Makefile.in: Regenerate.

contrib/ChangeLog:

	* unicode/gen_libstdcxx_unicode_data.py: Add copyright and
	license text to the output.

libstdc++-v3/ChangeLog:

	* include/bits/text_encoding-data.h: Regenerate.
	* include/bits/unicode-data.h: Regenerate.
	* scripts/gen_text_encoding_data.py: Add copyright and license
	text to the output.

gcc/ChangeLog:

	* config/xtensa/xtensa.md (*eqne_zero_masked_bits):
	Add missing ":SI" to the match_operator.

After LRA transition, HImode constants that don't fit into signed 12 bits
are no longer subject to constant synthesis:

    /* example */
    void test(void) {
      short foo = 32767;
      __asm__ ("" :: "r"(foo));
    }

    ;; before
    	.literal_position
    	.literal .LC0, 32767
    test:
    	l32r	a9, .LC0
    	ret.n

This patch fixes that:

    ;; after
    test:
    	movi.n	a9, -1
    	extui	a9, a9, 17, 15
    	ret.n

gcc/ChangeLog:

	* config/xtensa/xtensa.md (SHI): New mode iterator.
	(2 split patterns related to constsynth):
	Change to also accept HImode operands.

This patch adjusts the costs so that we treat REG and SUBREG expressions the
same for costing.

This was motivated by bt_skip_func and bt_find_func in xz and results in nearly
a 5% improvement in the dynamic instruction count for input #2 and smaller, but
definitely visible improvements pretty much across the board.  Exceptions would
be perlbench input #1 and exchange2 which showed very small regressions.

In the bt_find_func and bt_skip_func cases we have  something like this:

> (insn 10 7 11 2 (set (reg/v:DI 136 [ x ])
>         (zero_extend:DI (subreg/s/u:SI (reg/v:DI 137 [ a ]) 0))) "zz.c":6:21 387 {*zero_extendsidi2_bitmanip}
>      (nil))
> (insn 11 10 12 2 (set (reg:DI 142 [ _1 ])
>         (plus:DI (reg/v:DI 136 [ x ])
>             (reg/v:DI 139 [ b ]))) "zz.c":7:23 5 {adddi3}
>      (nil))

[ ... ]> (insn 13 12 14 2 (set (reg:DI 143 [ _2 ])
>         (plus:DI (reg/v:DI 136 [ x ])
>             (reg/v:DI 141 [ c ]))) "zz.c":8:23 5 {adddi3}
>      (nil))

Note the two uses of (reg 136). The best way to handle that in combine might be
a 3->2 split.  But there's a much better approach if we look at fwprop...

(set (reg:DI 142 [ _1 ])
    (plus:DI (zero_extend:DI (subreg/s/u:SI (reg/v:DI 137 [ a ]) 0))
        (reg/v:DI 139 [ b ])))
change not profitable (cost 4 -> cost 8)

So that should be the same cost as a regular DImode addition when the ZBA
extension is enabled.  But it ends up costing more because the clause to cost
this variant isn't prepared to handle a SUBREG.  That results in the RTL above
having too high a cost and fwprop gives up.

One approach would be to replace the REG_P  with REG_P || SUBREG_P in the
costing code.  I ultimately decided against that and instead check if the
operand in question passes register_operand.

By far the most important case to handle is the DImode PLUS.  But for the sake
of consistency, I changed the other instances in riscv_rtx_costs as well.  For
those other cases we're talking about improvements in the .000001% range.

While we are into stage4, this just hits cost modeling which we've generally
agreed is still appropriate (though we were mostly talking about vector).  So
I'm going to extend that general agreement ever so slightly and include scalar
cost modeling :-)

gcc/
	* config/riscv/riscv.cc (riscv_rtx_costs): Handle SUBREG and REG
	similarly.

gcc/testsuite/

	* gcc.target/riscv/reg_subreg_costs.c: New test.

Co-authored-by: Jivan Hakobyan <jivanhakobyan9@gmail.com>

We expanded (neg x) to (minus const0 x) for LSX FP vectors, this is
wrong because -0.0 is not 0 - 0.0.  This causes some Python tests to
fail when Python is built with LSX enabled.

Use the vbitrevi.{d/w} instructions to simply reverse the sign bit
instead.  We are already doing this for LASX and now we can unify them
into simd.md.

gcc/ChangeLog:

	* config/loongarch/lsx.md (neg<mode:FLSX>2): Remove the
	incorrect expand.
	* config/loongarch/simd.md (simdfmt_as_i): New define_mode_attr.
	(elmsgnbit): Likewise.
	(neg<mode:FVEC>2): New define_insn.
	* config/loongarch/lasx.md (negv4df2, negv8sf2): Remove as they
	are now instantiated in simd.md.

We call loongarch_symbol_insns with mode = MAX_MACHINE_MODE sometimes.
But in loongarch_symbol_insns:

    if (LSX_SUPPORTED_MODE_P (mode) || LASX_SUPPORTED_MODE_P (mode))
      return 0;

And LSX_SUPPORTED_MODE_P is defined as:

    #define LSX_SUPPORTED_MODE_P(MODE) \
      (ISA_HAS_LSX \
       && GET_MODE_SIZE (MODE) == UNITS_PER_LSX_REG ... ...

GET_MODE_SIZE is expanded to a call to mode_to_bytes, which is defined:

    ALWAYS_INLINE poly_uint16
    mode_to_bytes (machine_mode mode)
    {
    #if GCC_VERSION >= 4001
      return (__builtin_constant_p (mode)
	  ? mode_size_inline (mode) : mode_size[mode]);
    #else
      return mode_size[mode];
    #endif
    }

There is an assertion in mode_size_inline:

    gcc_assert (mode >= 0 && mode < NUM_MACHINE_MODES);

Note that NUM_MACHINE_MODES = MAX_MACHINE_MODE (emitted by genmodes.cc),
thus if __builtin_constant_p (mode) is evaluated true (it happens when
GCC is bootstrapped with LTO+PGO), the assertion will be triggered and
cause an ICE.  OTOH if __builtin_constant_p (mode) is evaluated false,
mode_size[mode] is still an out-of-bound array access (the length or the
mode_size array is NUM_MACHINE_MODES).

So we shouldn't call LSX_SUPPORTED_MODE_P or LASX_SUPPORTED_MODE_P with
MAX_MACHINE_MODE in loongarch_symbol_insns.  This is very similar to a
MIPS bug PR98491 fixed by me about 3 years ago.

gcc/ChangeLog:

	* config/loongarch/loongarch.cc (loongarch_symbol_insns): Do not
	use LSX_SUPPORTED_MODE_P or LASX_SUPPORTED_MODE_P if mode is
	MAX_MACHINE_MODE.

This FAIL was introduced from r14-6908. The reason is that when merging
constant vector permutation implementations, the 128-bit matching situation
was not fully considered. In fact, the expansion of 128-bit vectors after
merging only supports value-based 4 elements set shuffle, so this time is a
complete implementation of the entire 128-bit vector constant permutation,
and some structural adjustments have also been made to the code.

gcc/ChangeLog:

	* config/loongarch/loongarch.cc (loongarch_expand_vselect): Adjust.
	(loongarch_expand_vselect_vconcat): Ditto.
	(loongarch_try_expand_lsx_vshuf_const): New, use vshuf to implement
	all 128-bit constant permutation situations.
	(loongarch_expand_lsx_shuffle): Adjust and rename function name.
	(loongarch_is_imm_set_shuffle): Renamed function name.
	(loongarch_expand_vec_perm_even_odd): Function forward declaration.
	(loongarch_expand_vec_perm_even_odd_1): Add implement for 128-bit
	extract-even and extract-odd permutations.
	(loongarch_is_odd_extraction): Delete.
	(loongarch_is_even_extraction): Ditto.
	(loongarch_expand_vec_perm_const): Adjust.

Phobos changes:

    - std.uni tables have been regenerated as hex strings.

libphobos/ChangeLog:

	* src/MERGE: Merge upstream phobos 37796e783.

D front-end changes:

	- Import dmd v2.107.0.
	- Character postfixes can now also be used for integers of size
	  two or four.

D run-time changes:

	- Import druntime v2.107.0.

Phobos changes:

	- Import phobos v2.107.0.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd a6f1083699.
	* dmd/VERSION: Bump version to v2.107.0
	* Make-lang.in (D_FRONTEND_OBJS): Add d/pragmasem.o.
	* d-builtins.cc (strip_type_modifiers): Update for new front-end
	interface.
	* d-codegen.cc (declaration_type): Likewise.
	(parameter_type): Likewise.
	* d-target.cc (TargetCPP::parameterType): Likewise.
	* expr.cc (ExprVisitor::visit (IndexExp *)): Likewise.
	(ExprVisitor::visit (VarExp *)): Likewise.
	(ExprVisitor::visit (AssocArrayLiteralExp *)): Likewise.
	* runtime.cc (get_libcall_type): Likewise.
	* typeinfo.cc (TypeInfoVisitor::visit (TypeInfoConstDeclaration *)):
	Likewise.
	(TypeInfoVisitor::visit (TypeInfoInvariantDeclaration *)): Likewise.
	(TypeInfoVisitor::visit (TypeInfoSharedDeclaration *)): Likewise.
	(TypeInfoVisitor::visit (TypeInfoWildDeclaration *)): Likewise.
	* types.cc (build_ctype): Likewise.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime a6f1083699.
	* src/MERGE: Merge upstream phobos 31dedd7da.

2024-02-03  John David Anglin  <danglin@gcc.gnu.org>

gcc/testsuite/ChangeLog:

	* gcc.dg/pr84877.c: Adjust xfail parentheses.

F2018 and F2023 standards added zero width exponents. This required
additional special handing in the process of building formatted
floating point strings.

G formatting uses either F or E formatting as documented in
write_float.def comments. This logic changes the format token from FMT_G
to FMT_F or FMT_E. The new formatting requirements interfere with this
process when a FMT_G float string is being built.  To avoid this, a new
component called 'pushed' is added to the fnode structure to save this
condition.  The 'pushed' condition is then used to bypass portions of
the new ES,E,EN, and D formatting, falling through to the existing
default formatting which is retained.

libgfortran/ChangeLog:
	PR libfortran/111022
	* io/format.c (get_fnode): Update initialization of fnode.
	(parse_format_list): Initialization.
	* io/format.h (struct fnode): Added the new 'pushed' component.
	* io/write.c (select_buffer): Whitespace.
	(write_real): Whitespace.
	(write_real_w0): Adjust logic for the d == 0 condition.
	* io/write_float.def (determine_precision): Whitespace.
	(build_float_string): Calculate width of ..E0 exponents and
	adjust logic accordingly.
	(build_infnan_string): Whitespace.
	(CALCULATE_EXP): Whitespace.
	(quadmath_snprintf): Whitespace.
	(determine_en_precision): Whitespace.

gcc/testsuite/ChangeLog:
	PR libfortran/111022
	* gfortran.dg/fmt_error_10.f: Show D+0 exponent.
	* gfortran.dg/pr96436_4.f90: Show E+0 exponent.
	* gfortran.dg/pr96436_5.f90: Show E+0 exponent.
	* gfortran.dg/pr111022.f90: New test.

The exception defines in <fenv.h> do not match the exception bits
in the FPU status register on hppa-linux and hppa64-hpux11.11.  On
linux, they match the trap enable bits.  On 64-bit hpux, they match
the exception bits for IA64.  The IA64 bits are in a different
order and location than HPPA.  HP uses table look ups to reorder
the bits in code to test and raise exceptions.

All the architectures that I looked at just pass the FPU status
register to __atomic_feraiseexcept().  The simplest approach for
hppa is to define FE_INEXACT, etc, to match the status register
and not include <fenv.h>..

2024-02-03  John David Anglin  <danglin@gcc.gnu.org>

libatomic/ChangeLog:

	PR target/59778
	* configure.tgt (hppa*): Set ARCH.
	* config/pa/fenv.c: New file.

	* MAINTAINERS: Update my e-mail address.

Since bswap has been converted from a method to a function we miscompile
the following testcase.  The problem is the assumption that the passed in
len argument (number of limbs in the xval array) is the upper bound for the
bswap result, which is true only if precision is <= 64.  If precision is
larger than that, e.g. 128 as in the testcase, if the argument has only
one limb (i.e. 0 to ~(unsigned HOST_WIDE_INT) 0), the result can still
need 2 limbs for that precision, or generally BLOCKS_NEEDED (precision)
limbs, it all depends on how many least significant limbs of the operand
are zero.  bswap_large as implemented only cleared len limbs of result,
then swapped the bytes (invoking UB when oring something in all the limbs
above it) and finally passed len to canonize, saying that more limbs
aren't needed.

The following patch fixes it by renaming len to xlen (so that it is clear
it is X's length), using it solely for safe_uhwi argument when we attempt
to read from X, and using new len = BLOCKS_NEEDED (precision) instead in
the other two spots (i.e. when clearing the val array, turned it also
into memset, and in canonize argument).  wi::bswap asserts it isn't invoked
on widest_int, so we are always invoked on wide_int or similar and those
have preallocated result sized for the corresponding precision (i.e.
BLOCKS_NEEDED (precision)).

2024-02-03  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/113722
	* wide-int.cc (wi::bswap_large): Rename third argument from
	len to xlen and adjust use in safe_uhwi.  Add len variable, set
	it to BLOCKS_NEEDED (precision) and use it for clearing of val
	and as canonize argument.  Clear val using memset instead of
	a loop.

	* gcc.dg/pr113722.c: New test.

We are getting a gnuradio PCH ICE
/usr/include/pybind11/stl.h:447:1: internal compiler error: in gt_pch_save, at ggc-common.cc:693
0x1304e7d gt_pch_save(_IO_FILE*)
        ../../gcc/ggc-common.cc:693
0x12a45fb c_common_write_pch()
        ../../gcc/c-family/c-pch.cc:175
0x18ad711 c_parse_final_cleanups()
        ../../gcc/cp/decl2.cc:5062
0x213988b c_common_parse_file()
        ../../gcc/c-family/c-opts.cc:1319
(unfortunately it isn't reproduceable always, but often needs
up to 100 attempts, isn't reproduceable in a cross etc.).
The bug is in the assertion I've added in gt_pch_save when adding
relocation support for the PCH files in case they happen not to be
mmapped at the selected address.
addr is a relocated address which points to a location in the PCH
blob (starting at mmi.preferred_base, with mmi.size bytes) which contains
a pointer that needs to be relocated.  So the assertion is meant to
verify the address is within the PCH blob, obviously it needs to be
equal or above mmi.preferred_base, but I got the other comparison wrong
and when one is very unlucky and the last sizeof (void *) bytes of the
blob happen to be a pointer which needs to be relocated, such as on the
s390x host addr 0x8008a04ff8, mmi.preferred_base 0x8000000000 and
mmi.size 0x8a05000, addr + sizeof (void *) is equal to mmi.preferred_base +
mmi.size and that is still fine, both addresses are end of something.

2024-02-03  Jakub Jelinek  <jakub@redhat.com>

	* ggc-common.cc (gt_pch_save): Allow addr to be equal to
	mmi.preferred_base + mmi.size - sizeof (void *).

D front-end changes:

    - Import latest fixes from dmd v2.107.0-beta.1.
    - Hex strings can now be cast to integer arrays.
    - Add support for Interpolated Expression Sequences.

D runtime changes:

    - Import latest fixes from druntime v2.107.0-beta.1.
    - New core.interpolation module to provide run-time support for D
      interpolated expression sequence literals.

Phobos changes:

    - Import latest fixes from phobos v2.107.0-beta.1.
    - `std.range.primitives.isBidirectionalRange', and
      `std.range.primitives.isRandomAccessRange' now take an optional
      element type.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd e770945277.
	* Make-lang.in (D_FRONTEND_OBJS): Add d/basicmangle.o, d/enumsem.o,
	d/funcsem.o, d/templatesem.o.
	* d-builtins.cc (build_frontend_type): Update for new front-end
	interface.
	* d-codegen.cc (declaration_type): Likewise.
	(parameter_type): Likewise.
	* d-incpath.cc (add_globalpaths): Likewise.
	(add_filepaths): Likewise.
	(add_import_paths): Likewise.
	* d-lang.cc (d_init_options): Likewise.
	(d_handle_option): Likewise.
	(d_parse_file): Likewise.
	* decl.cc (DeclVisitor::finish_vtable): Likewise.
	(DeclVisitor::visit (FuncDeclaration *)): Likewise.
	(get_symbol_decl): Likewise.
	* expr.cc (ExprVisitor::visit (StringExp *)): Likewise.
	Implement support for 8-byte hexadecimal strings.
	* typeinfo.cc (create_tinfo_types): Update internal TypeInfo
	representation.
	(TypeInfoVisitor::visit (TypeInfoConstDeclaration *)): Update for new
	front-end interface.
	(TypeInfoVisitor::visit (TypeInfoInvariantDeclaration *)): Likewise.
	(TypeInfoVisitor::visit (TypeInfoSharedDeclaration *)): Likewise.
	(TypeInfoVisitor::visit (TypeInfoWildDeclaration *)): Likewise.
	(TypeInfoVisitor::visit (TypeInfoClassDeclaration *)): Move data for
	TypeInfo_Class.nameSig to the end of the object.
	(create_typeinfo): Update for new front-end interface.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime e770945277.
	* libdruntime/Makefile.am (DRUNTIME_SOURCES): Add
	core/interpolation.d.
	* libdruntime/Makefile.in: Regenerate.
	* src/MERGE: Merge upstream phobos 6d6e0b9b9.

When bootstrapping GCC 14 with --with-build-config=bootstrap-lto, an ODR
violation is detected:

    ../../gcc/config/loongarch/loongarch-opts.cc:57: warning:
    'abi_minimal_isa' violates the C++ One Definition Rule [-Wodr]
    57 | abi_minimal_isa[N_ABI_BASE_TYPES][N_ABI_EXT_TYPES];
    ../../gcc/config/loongarch/loongarch-def.cc:186: note:
    'abi_minimal_isa' was previously declared here
    186 |   abi_minimal_isa = array<array<loongarch_isa, N_ABI_EXT_TYPES>,
    ../../gcc/config/loongarch/loongarch-def.cc:186: note:
    code may be misoptimized unless '-fno-strict-aliasing' is used

Fix it by adding a proper declaration of abi_minimal_isa into
loongarch-def.h and remove the ODR-violating local declaration in
loongarch-opts.cc.

gcc/ChangeLog:

	* config/loongarch/loongarch-def.h (abi_minimal_isa): Declare.
	* config/loongarch/loongarch-opts.cc (abi_minimal_isa): Remove
	the ODR-violating locale declaration.

Phobos changes:

    - std.uni has been upgraded from Unicode 15.0.0 to 15.1.0.

libphobos/ChangeLog:

	* src/MERGE: Merge upstream phobos c6e1f98fa.

In r11-3261-gb28b621ac67bee we made tsubst_requires_expr never partially
substitute into a requires-expression so as to avoid checking its
requirements out of order during e.g. generic lambda regeneration.

These PRs however illustrate that we still sometimes do need to
partially substitute into a requires-expression, in particular when it
appears in associated constraints that we're directly substituting for
sake of declaration matching or dguide constraint rewriting.  In these
cases we're being called from tsubst_constraint during which
processing_constraint_expression_p is true, so this patch checks this
predicate to control whether we defer substitution or partially
substitute.

In turn, we now need to propagate semantic tsubst flags through
tsubst_requires_expr rather than just using tf_none, notably for sake of
dguide constraint rewriting which sets tf_dguide.

	PR c++/110006
	PR c++/112769

gcc/cp/ChangeLog:

	* constraint.cc (subst_info::quiet): Accomodate non-diagnostic
	tsubst flags.
	(tsubst_valid_expression_requirement): Likewise.
	(tsubst_simple_requirement): Return a substituted _REQ node when
	processing_template_decl.
	(tsubst_type_requirement_1): Accomodate non-diagnostic tsubst
	flags.
	(tsubst_type_requirement): Return a substituted _REQ node when
	processing_template_decl.
	(tsubst_compound_requirement): Likewise.  Accomodate non-diagnostic
	tsubst flags.
	(tsubst_nested_requirement): Likewise.
	(tsubst_requires_expr): Don't defer partial substitution when
	processing_constraint_expression_p is true, in which case return
	a substituted REQUIRES_EXPR.
	* pt.cc (tsubst_expr) <case REQUIRES_EXPR>: Accomodate
	non-diagnostic tsubst flags.

gcc/testsuite/ChangeLog:

	* g++.dg/cpp2a/class-deduction-alias18.C: New test.
	* g++.dg/cpp2a/concepts-friend16.C: New test.

Reviewed-by: Jason Merrill <jason@redhat.com>

This patch fixes a bug which occurs when an expression is created with
a ZType and an integer or cardinal.  The resulting subexpression is
incorrecly given a ZType which allows compatibility with another
integer/cardinal type.  The solution was to fix the subexpression
type.  In turn this required a minor change to SArgs.mod.

gcc/m2/ChangeLog:

	PR modula2/113730
	* gm2-compiler/M2Base.mod (IsUserType): New procedure function.
	(MixTypes): Use IsUserType instead of IsType before calling MixTypes.
	* gm2-compiler/M2GenGCC.mod (GetTypeMode): Remove and import from
	SymbolTable.
	(CodeBinaryCheck): Replace call to MixTypes with MixTypesBinary.
	(CodeBinary): Replace call to MixTypes with MixTypesBinary.
	(CodeIfLess): Replace MixTypes with ComparisonMixTypes.
	(CodeIfGre): Replace MixTypes with ComparisonMixTypes.
	(CodeIfLessEqu): Replace MixTypes with ComparisonMixTypes.
	(CodeIfGreEqu): Replace MixTypes with ComparisonMixTypes.
	(CodeIfEqu): Replace MixTypes with ComparisonMixTypes.
	(CodeIfNotEqu): Replace MixTypes with ComparisonMixTypes.
	(ComparisonMixTypes): New procedure function.
	* gm2-compiler/M2Quads.mod (BuildEndFor): Replace GenQuadO
	with GenQuadOtok and pass tokenpos for the operands to the AddOp
	and XIndrOp.
	(CheckRangeIncDec): Check etype against NulSym and dtype for a
	pointer and set etype to Address.
	(BuildAddAdrFunction): New variable opa.  Convert operand to an
	address and save result in opa.  Replace GenQuad with GenQuadOtok.
	(BuildSubAdrFunction): New variable opa.  Convert operand to an
	address and save result in opa.  Replace GenQuad with GenQuadOtok.
	(BuildDiffAdrFunction): New variable opa.  Convert operand to an
	address and save result in opa.  Replace GenQuad with GenQuadOtok.
	(calculateMultipicand): Replace GenQuadO with GenQuadOtok.
	(ConvertToAddress): New procedure function.
	(BuildDynamicArray): Convert index to address before adding to
	the base.
	* gm2-compiler/SymbolTable.def (GetTypeMode): New procedure function.
	* gm2-compiler/SymbolTable.mod (GetTypeMode): New procedure
	function implemented (moved from M2GenGCC.mod).
	* gm2-libs/SArgs.mod (GetArg): Replace cast to PtrToChar with ADDRESS.

gcc/testsuite/ChangeLog:

	PR modula2/113730
	* gm2/extensions/fail/arith1.mod: New test.
	* gm2/extensions/fail/arith2.mod: New test.
	* gm2/extensions/fail/arith3.mod: New test.
	* gm2/extensions/fail/arith4.mod: New test.
	* gm2/extensions/fail/arithpromote.mod: New test.
	* gm2/extensions/fail/extensions-fail.exp: New test.
	* gm2/linking/fail/badimp.def: New test.
	* gm2/linking/fail/badimp.mod: New test.
	* gm2/linking/fail/linking-fail.exp: New test.
	* gm2/linking/fail/testbadimp.mod: New test.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>

When analyzing loads for early break it was always the intention that for the
exit where things get moved to we only check the loads that can be reached from
the condition.

However the main loop checks all loads and we skip the destination BB.  As such
we never actually check the loads reachable from the COND in the last BB unless
this BB was also the exit chosen by the vectorizer.

This leads us to incorrectly vectorize the loop in the PR and in doing so access
out of bounds.

gcc/ChangeLog:

	PR tree-optimization/113588
	PR tree-optimization/113467
	* tree-vect-data-refs.cc
	(vect_analyze_data_ref_dependence):  Choose correct dest and fix checks.
	(vect_analyze_early_break_dependences): Update comments.

gcc/testsuite/ChangeLog:

	PR tree-optimization/113588
	PR tree-optimization/113467
	* gcc.dg/vect/vect-early-break_108-pr113588.c: New test.
	* gcc.dg/vect/vect-early-break_109-pr113588.c: New test.

The vect-avg-*.c testcases are trying to make sure
the AVG internal function are used and not
doing promotion to `vector unsigned short`
but when V4QI is implemented, `vector(2) unsigned short`
shows up in the detail dump file and causes the failure.
To fix this checking the optimized dump instead of the vect dump
for `vector unsigned short` to make sure the vectorizer does not
do the promotion.

Built and tested for aarch64-linux-gnu.

gcc/testsuite/ChangeLog:

	* gcc.dg/vect/vect-avg-1.c: Check optimized dump
	for `vector *signed short` instead of the `vect` dump.
	* gcc.dg/vect/vect-avg-11.c: Likewise.
	* gcc.dg/vect/vect-avg-12.c: Likewise.
	* gcc.dg/vect/vect-avg-13.c: Likewise.
	* gcc.dg/vect/vect-avg-14.c: Likewise.
	* gcc.dg/vect/vect-avg-2.c: Likewise.
	* gcc.dg/vect/vect-avg-3.c: Likewise.
	* gcc.dg/vect/vect-avg-4.c: Likewise.
	* gcc.dg/vect/vect-avg-5.c: Likewise.
	* gcc.dg/vect/vect-avg-6.c: Likewise.
	* gcc.dg/vect/vect-avg-7.c: Likewise.
	* gcc.dg/vect/vect-avg-8.c: Likewise.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

D front-end changes:

	- Import latest changes from dmd v2.107.0-beta.1.
	- Keywords like `__FILE__' are now always evaluated at the
	  callsite.

D runtime changes:

	- Import latest changes from druntime v2.107.0-beta.1.
	- Added `nameSig' field to TypeInfo_Class in object.d.

Phobos changes:

	- Import latest changes from phobos v2.107.0-beta.1.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd bce5c1f7b5.
	* d-attribs.cc (build_attributes): Update for new front-end interface.
	* d-lang.cc (d_parse_file): Likewise.
	* decl.cc (DeclVisitor::visit (VarDeclaration *)): Likewise.
	* expr.cc (build_lambda_tree): New function.
	(ExprVisitor::visit (FuncExp *)): Use build_lambda_tree.
	(ExprVisitor::visit (SymOffExp *)): Likewise.
	(ExprVisitor::visit (VarExp *)): Likewise.
	* typeinfo.cc (create_tinfo_types): Add two ulong fields to internal
	TypeInfo representation.
	(TypeInfoVisitor::visit (TypeInfoClassDeclaration *)): Emit stub data
	for TypeInfo_Class.nameSig.
	(TypeInfoVisitor::visit (TypeInfoStructDeclaration *)): Update for new
	front-end interface.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime bce5c1f7b5.
	* src/MERGE: Merge upstream phobos e4d0dd513.

D front-end changes:

    - Import dmd v2.107.0-beta.1.
    - A string literal as an assert condition is deprecated.
    - Added `@standalone` for module constructors.

D runtime changes:

    - Import druntime v2.107.0-beta.1.

Phobos changes:

    - Import phobos v2.107.0-beta.1.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd d8e3976a58.
	* dmd/VERSION: Bump version to v2.107.0-beta.1.
	* d-lang.cc (d_parse_file): Update for new front-end interface.
	* modules.cc (struct module_info): Add standalonectors.
	(build_module_tree): Implement @standalone.
	(register_module_decl): Likewise.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime d8e3976a58.
	* src/MERGE: Merge upstream phobos 7a6e95688.

D front-end changes:

    - Import dmd v2.106.1-rc.1.
    - Unrecognized pragmas are no longer an error by default.

D runtime changes:

    - Import druntime v2.106.1-rc.1.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd f1a045928e.
	* dmd/VERSION: Bump version to v2.106.1-rc.1.
	* gdc.texi (fignore-unknown-pragmas): Update documentation.
	* d-builtins.cc (covariant_with_builtin_type_p): Update for new
	front-end interface.
	* d-lang.cc (d_parse_file): Likewise.
	* typeinfo.cc (make_frontend_typeinfo): Likewise.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime f1a045928e.
	* libdruntime/Makefile.am (DRUNTIME_DSOURCES): Add
	core/stdc/stdatomic.d.
	* libdruntime/Makefile.in: Regenerate.

	PR go/113530

Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/557655