2026-01-31  Keith Packard  <keithp@keithp.com>

	* config/picolibc-spec.h (LIBC_LINK_SPEC): Use find-file for test
	and access to picolibc.ld.

2026-01-31  Richard Biener  <rguenther@suse.de>

	PR middle-end/123887
	* match.pd ((a ? x : y) !=/== (b ? x : y)): Make sure
	x and y have no side-effects before evaluating them
	unconditionally.

2026-01-31  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/install.texi (Binaries): Switch delorie.com to https.

2026-01-30  Richard Biener  <rguenther@suse.de>

	PR middle-end/123887
	* match.pd ((zero_one ==/!= 0) ? .. z <op> y .. -> zero_one * z ..):
	Check evaluating z unconditionally has no side-effects, like
	trapping.

2026-01-30  Richard Biener  <rguenther@suse.de>

	PR debug/123886
	* dwarf2out.cc (sym_off_pair::sym): Remove GTY((skip)).

2026-01-30  Michal Jires  <mjires@suse.cz>

	* doc/extend.texi: Mention flto-toplevel-asm-heuristics.
	* doc/invoke.texi: Add flto-toplevel-asm-heuristics.

2026-01-30  Richard Biener  <rguenther@suse.de>

	PR debug/110885
	* dwarf2out.cc (generate_skeleton_bottom_up): Generate the
	skeleton ancestor tree when moving a new child to the parent
	even for template instantiations.

2026-01-30  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123864
	* match.pd (__builtin_mul_overflow_p (x, cst, (stype) 0) ->
	x > stype_max / cst || x < stype_min / cst): Only check
	integer_minus_onep for signed types.

2026-01-30  Jakub Jelinek  <jakub@redhat.com>

	PR c++/123790
	* fold-const.cc (fold_convert_const): Handle conversion of
	integer_zerop to NULLPTR_TYPE.
	(fold_convert_loc): Likewise.

2026-01-30  Jørgen Kvalsvik  <j@lambda.is>

	PR gcov-profile/123855
	* path-coverage.cc (flush_on_edges): Only look up SSA name def
	stmt when counter is non-const.

2026-01-30  Jørgen Kvalsvik  <j@lambda.is>

	* gcov-dump.cc (tag_paths): New function.

2026-01-30  Jørgen Kvalsvik  <j@lambda.is>

	* common.opt: ftest-coverage enabled by fpath-coverage or
	fcondition-coverage

2026-01-30  Jørgen Kvalsvik  <j@lambda.is>

	* gcov-dump.cc (tag_conditions):  Read position before blocks,
	terms.

2026-01-30  Jørgen Kvalsvik  <j@lambda.is>

	PR gcov-profile/121084
	PR gcov-profile/121123
	PR gcov-profile/121409
	* profile.cc (branch_prob): Record seen_locations without
	discriminators.

2026-01-30  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/123876
	* omp-low.cc (diagnose_sb_2): Handle GIMPLE_ASM.

2026-01-30  Alex Coplan  <alex.coplan@arm.com>

	PR target/123206
	* config/aarch64/aarch64-builtins.cc (struct aarch64_pragma_builtins_data):
	Declare array as CONSTEXPR.
	* config/aarch64/aarch64-simd-pragma-builtins.def: Update
	incorrect uses of TARGET_SIMD to use AARCH64_FL_SIMD instead.

2026-01-30  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/109410
	* tree-ssa-reassoc.cc (build_and_add_sum): Use
	gsi_start_nondebug_after_labels_bb to look for a possible
	returns-twice call.

2026-01-30  Iain Buclaw  <ibuclaw@gdcproject.org>

	* config/darwin-d.cc (darwin_d_os_builtins): Add Apple.

2026-01-30  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR rtl-optimization/122170
	* ifcvt.cc (noce_can_force_operand): Don't only check if
	there is an optab for the code check the entry for the
	mode is non-null. Handle non integral div by checking
	optab like force_operand does.

2026-01-30  Lulu Cheng  <chenglulu@loongson.cn>

	* config/loongarch/loongarch-ftypes.def: Remove unused type.

2026-01-30  Lulu Cheng  <chenglulu@loongson.cn>

	PR target/123766
	* config/loongarch/loongarch-builtins.cc
	(loongarch_build_vpointer_type): New function.  Return a type
	for 'volatile void *'.
	(LARCH_ATYPE_VPOINTER): New macro.
	* config/loongarch/loongarch-ftypes.def: Change the pointer
	type of the store class function from CVPOINTER to VPOINTER.

2026-01-30  Lulu Cheng  <chenglulu@loongson.cn>

	PR target/123807
	* config/loongarch/loongarch.cc
	(loongarch_expand_vector_init_same): When same is MEM and
	GET_MODE(same) != imode, first load the data from memory
	and then process it further.

2026-01-30  mengqinggang  <mengqinggang@loongson.cn>

	* config/loongarch/loongarch.md: Delete movsf TARGET_HARD_FLOAT
	condition.

2026-01-29  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR middle-end/123869
	* optabs.cc (expand_unop): Move the NEG optab
	handling before the widening code.
	Move the ABS bitwise expansion from expand_abs_nojump
	to before the widening code.
	(expand_abs_nojump): Remove the bitwise expansion trial
	since expand_unop is called right above.

2026-01-29  Roger Sayle  <roger@nextmovesoftware.com>

	* expr.cc (emit_group_load_1): Don't call force_reg if orig_src
	is already a CONCAT.

2026-01-29  Sandra Loosemore  <sloosemore@baylibre.com>

	* doc/options.texi (Options): Point to the "user experience"
	documentation.
	* doc/ux.texi (Guidelines for Options): Add some.

2026-01-29  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR target/123806
	* config/riscv/riscv-string.cc (expand_rawmemchr): Use unified
	vl_read.
	(expand_strcmp): Ditto.
	* config/riscv/riscv-vector-builtins-bases.cc:
	* config/riscv/riscv-vector-builtins.cc (function_expander::use_fof_load_insn):
	Only emit the store and not the VL read.
	* config/riscv/riscv-vsetvl.cc (get_fof_set_vl_reg): New
	function.
	(init_rtl_ssa): New wrapper.
	(finish_rtl_ssa): Ditto.
	(emit_fof_read_vls): Emit read_vl after each fault-only-first
	load.
	(pass_vsetvl::simple_vsetvl): Call emit_fof_read_vls ().
	(pass_vsetvl::lazy_vsetvl): Ditto.
	* config/riscv/vector-iterators.md: Add read_vl unspec.
	* config/riscv/vector.md (read_vlsi): Unify.
	(@read_vl<mode>): Ditto.
	(read_vldi_zero_extend): Ditto.
	(@pred_fault_load_set_vl<V_VLS:mode><P:mode>): New FoF variant
	that saves VL in a register.
	(@pred_fault_load_set_vl<VT:mode><P:mode>): Ditto.

2026-01-29  Filip Kastl  <fkastl@suse.cz>

	* gimple-ssa-pta-constraints.cc (make_param_constraints): Adjust
	comment: The function only creates varinfos for the parameters,
	the return value and the static chain.

2026-01-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/122537
	* tree-ssa-loop-niter.cc (number_of_iterations_lt_to_ne): Register
	may_be_zero condition when the IV may overflow.

2026-01-29  Sangamesh Mallayya  <swamy.sangamesh@gmail.com>

	* diagnostics/sarif-sink.cc: Move config.h at the begining.

2026-01-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123596
	* tree-eh.cc (sink_clobbers): Create a virtual PHI when
	one is required but not present, queuing arguments
	for renaming.

2026-01-29  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/116747
	* tree-ssa-phiopt.cc (cond_if_else_store_replacement): Avoid
	duplicate stmts in the set of store pairs to process.

2026-01-28  Uros Bizjak  <ubizjak@gmail.com>

	PR target/36503
	* config/i386/i386.md (*<insn:any_shift><mode:SWI48>3_sub):
	Also allow operands[3] & (<mode_bitsize>-1) == (<mode_bitsize>-1)
	in insn condition. Emit NOT RTX instead of NEG RTX in this case.
	(*<insn:any_shift><mode:SWI48>3_sub_1): Ditto.

2026-01-28  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR target/123824
	* config/riscv/riscv.cc (riscv_vls_mode_fits_in_gprs_p): New
	helper.
	(riscv_pass_vls_aggregate_in_gpr): Use helper and distribute
	half-fitting vector to GPR and stack.
	(riscv_pass_aggregate_in_vr): Reformat comment.
	(riscv_get_arg_info): Use helper.
	(riscv_pass_by_reference): Ditto.

2026-01-28  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/121571
	* lra-constraints.cc (process_alt_operands): Reprocess asm insn
	when there are no enough regs for the asm-insn.

2026-01-28  Richard Biener  <rguenther@suse.de>

	PR middle-end/123575
	* match.pd (abs ((T)x) -> absu (x)): For vector type
	arguments require the resulting operation is supported.

2026-01-28  Richard Biener  <rguenther@suse.de>

	PR ipa/111036
	* match.pd (__builtin_constant_p ((T)x)): Strip nop-conversions
	from __builtin_constant_p arguments.

2026-01-28  Richard Biener  <rguenther@suse.de>

	PR rtl-optimization/106859
	* var-tracking.cc (val_store): Dump -1 as UID if setting_insn
	is NULL.

2026-01-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123537
	* match.pd (REDUC (@0 & @1) -> @0[I] & @1[I]): Restrict
	allowed conversions.

2026-01-28  Karl Meakin  <karl.meakin@arm.com>

	* doc/invoke.texi: Document `+sve-bfscale` flag.
	* config/aarch64/aarch64.h (TARGET_SVE_BFSCALE): New macro.
	* config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins):
	Define `__AARCH64_FEATURE_SVE_BFSCALE`.
	* config/aarch64/aarch64-sve-builtins-base.cc: Skip constant
	folding for floating-point or unpredicated multiplications.
	* config/aarch64/aarch64-sve-builtins-sve2.def: New `SVE_FUNCTION`s.
	* config/aarch64/aarch64-sve.md: Modify insns for
	`SVE_COND_FP_BINARY_INT` to handle BF16 modes.
	* config/aarch64/aarch64-sve2.md
	(@aarch64_sve_<optab><mode>, @aarch64_sve_<optab><mode>_single): New insn for `BFSCALE`.
	Modify insns for `UNSPEC_FSCALE` to handle BF16 modes.
	* config/aarch64/iterators.md (SVE_FULL_F_SCALAR): Add `VNx8BF` to iterator.
	(SVE_FULL_F_BFSCALE): New iterator.
	(SVE_Fx24_BFSCALE): New iterator.
	(SVE_BFx24): New iterator.
	(UNSPEC_FMUL): New unspec.
	(V_INT_EQUIV): Add entries for BF16 modes.
	(b): Add entries for scalar float modes.
	(is_bf16): Add entries for BF16 modes and reformat.
	(SVSCALE_SINGLE_INTARG): Likewise.
	(SVSCALE_INTARG): Likewise.
	(SVE_FP_MULL): New iterator.

2026-01-28  Pengfei Li  <Pengfei.Li2@arm.com>

	PR middle-end/123447
	* expr.cc (expand_expr_real_1): Increase stack slot alignment
	for STRICT_ALIGNMENT targets.

2026-01-28  Andre Vieira  <andre.simoesdiasvieira@arm.com>

	PR target/123016
	* tree-vect-stmts.cc (vectorizable_simd_clone_call): use
	'build_truth_vector_type_for_mode' to reconstruct mask's vectype for
	non-scalar masks.

2026-01-28  Jakub Jelinek  <jakub@redhat.com>

	PR c/101312
	* langhooks.h (struct lang_hooks_for_types): Remove
	copy_lang_qualifiers.  Add build_lang_qualified_type.
	* langhooks.cc (lhd_build_lang_qualified_type): New function.
	* langhooks-def.h (lhd_build_lang_qualified_type): Declare.
	(LANG_HOOKS_COPY_LANG_QUALIFIERS): Remove.
	(LANG_HOOKS_BUILD_LANG_QUALIFIED_TYPE): Add.
	(LANG_HOOKS_FOR_TYPES_INITIALIZER): Use
	LANG_HOOKS_BUILD_LANG_QUALIFIED_TYPE instead of
	LANG_HOOKS_COPY_LANG_QUALIFIERS.
	* attribs.cc (build_type_attribute_qual_variant): Use
	lang_hooks.types.build_lang_qualified_type instead of
	build_qualified_type and/or build_qualified_type with
	optional lang_hooks.types.copy_lang_qualifiers call.
	(attr_access::array_as_string): Use "array " attribute instead of
	"array".  If attribute has been created or intended quals differ
	from quals of build_array_type, use copy_node and adjust quals and
	attributes on the copy, print and then ggc_free.

2026-01-28  Jakub Jelinek  <jakub@redhat.com>

	PR c++/123837
	* ipa-free-lang-data.cc (find_decls_types_r): Remove C++ annotations
	from {DECL,TYPE}_ATRIBUTES.

2026-01-28  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123849
	* gimple-ssa-warn-access.cc (new_delete_mismatch_p): Handle
	DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE like DEMANGLE_COMPONENT_BUILTIN_TYPE.

2026-01-28  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/110043
	* pointer-query.cc (get_offset_range): Fail for integer
	types with precision larger than ptrdiff_type_node.

2026-01-28  Hongyu Wang  <hongyu.wang@intel.com>

	PR target/123779
	* config/i386/sse.md (*sse4_1_<code>v8qiv8hi2<mask_name>_2):
	Rename to ...
	(*sse4_1_<code>v8qiv8hi2_2): ... this, and drop mask conditions.
	(*avx2_<code>v8qiv8si2<mask_name>_2): Rename to ...
	(*avx2_<code>v8qiv8si2_2): ... this, and likewise.
	(*sse4_1_<code>v4qiv4si2<mask_name>_2): Rename to ...
	(*sse4_1_<code>v4qiv4si2_2): ... this, and likewise.
	(*sse4_1_<code>v4hiv4si2<mask_name>_2): Rename to ...
	(*sse4_1_<code>v4hiv4si2_2): ... this, and likewise.
	(*avx2_<code>v4qiv4di2<mask_name>_2): Rename to ...
	(*avx2_<code>v4qiv4di2_2): ... this, and likewise.
	(*avx2_<code>v4hiv4di2<mask_name>_2): Rename to ...
	(*avx2_<code>v4hiv4di2_2): ... this, and likewise.
	(*sse4_1_<code>v2hiv2di2<mask_name>_2): Rename to ...
	(*sse4_1_<code>v2hiv2di2_2): ... this, and likewise.
	(*sse4_1_<code>v2siv2di2<mask_name>_2): Rename to ...
	(*sse4_1_<code>v2siv2di2_2): ... this, and likewise.
	(*avx512f_<code>v8qiv8di2<mask_name>_2): Rename to ...
	(*avx512f_<code>v8qiv8di2_2): ... this.
	(*avx512vl_<code>v8qiv8hi2_mask_2): New define_insn_and_split.
	(*avx512vl_<code>v8qiv8si2_mask_2): Likewise.
	(*avx512vl_<code>v4qiv4si2_mask_2): Likewise.
	(*avx512vl_<code>v4hiv4si2_mask_2): Likewise.
	(*avx512f_<code>v8qiv8di2_mask_2): Likewise.
	(*avx512vl_<code>v4qiv4di2_mask_2): Likewise.
	(*avx512vl_<code>v4hiv4di2_mask_2): Likewise.
	(*avx512vl_<code>v2hiv2di2_mask_2): Likewise.
	(*avx512vl_<code>v2siv2di2_mask_2): Likewise.

2026-01-28  Nina Ranns  <dinka.ranns@gmail.com>
	    Iain Sandoe  <iain@sandoe.co.uk>
	    Ville Voutilainen  <ville.voutilainen@gmail.com>

	* doc/invoke.texi: Document -fcontracts-client-check= and
	-fcontracts-definition-check=.

2026-01-28  Nina Ranns  <dinka.ranns@gmail.com>
	    Iain Sandoe  <iain@sandoe.co.uk>
	    Ville Voutilainen  <ville.voutilainen@gmail.com>

	* doc/invoke.texi: Document -fcontract-checks-outlined and
	-fcontract-disable-optimized-checks.

2026-01-28  Nina Ranns  <dinka.ranns@gmail.com>
	    Iain Sandoe  <iain@sandoe.co.uk>

	* tree-core.h (struct tree_base): Update tree flag usage comment.

2026-01-28  Nina Ranns  <dinka.ranns@gmail.com>
	    Iain Sandoe  <iain@sandoe.co.uk>

	* tree.h (CONST_WRAPPER_P): New.

2026-01-28  Nina Ranns  <dinka.ranns@gmail.com>
	    Iain Sandoe  <iain@sandoe.co.uk>

	* doc/invoke.texi: Document -fcontracts-conservative-ipa.

2026-01-28  Iain Sandoe  <iain@sandoe.co.uk>
	    Nina Ranns  <dinka.ranns@gmail.com>
	    Ville Voutilainen  <ville.voutilainen@gmail.com>

	* config/darwin.h (ASM_GENERATE_INTERNAL_LABEL): Add cases for contract
	constant data that need to be in independent link-time 'atoms'.
	* doc/invoke.texi: Document -fcontracts and
	-fcontract-evaluation-semantic=.

2026-01-28  Iain Sandoe  <iain@sandoe.co.uk>
	    Nina Ranns  <dinka.ranns@gmail.com>

	* doc/invoke.texi: Remove documentation of contracts options.

2026-01-27  Jakub Jelinek  <jakub@redhat.com>

	PR other/123841
	* acinclude.m4 (gcc_GAS_FLAGS) <i?86-*-* | x86_64-*-*>: Set
	gcc_cv_as_flags irrespective of $gas_flag.
	* configure: Regenerate.

2026-01-27  David Malcolm  <dmalcolm@redhat.com>

	PR analyzer/122623
	* doc/invoke.texi (-fanalyzer-assume-nothrow): New option.

2026-01-27  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR middle-end/97898
	* omp-expand.cc (expand_omp_for_static_chunk): Don't
	conditionalize the call to force_gimple_operand_gsi on DECL_P/TREE_ADDRESSABLE
	but rather pass that as the 3rd argument.

2026-01-27  Jan Hubicka  <hubicka@ucw.cz>

	PR ipa/123619
	* ipa-polymorphic-call.cc
	(ipa_polymorphic_call_context::possible_dynamic_type_change): Remove impossible
	speuculation.

2026-01-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.ac (ld_32_opt, ld_64_opt): Set.
	(ld_ix86_gld_32_opt): Replace by ld_32_opt.
	(ld_ix86_gld_64_opt): Replace by ld_64_opt.
	Replace -melf_x86_64 by ld_64_opt.
	* configure: Regenerate.

2026-01-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* acinclude.m4 (gcc_cv_as_flags) Provide Solaris settings.
	Apply Linux/x86 gas settings on all x86 gas targets, too.
	(as_32_opt, as_64_opt): Set on all x86 gas targets.
	* configure.ac: Consistenly use as_32_opt, as_64_opt instead of
	as_ix86_gas_{32,64}_opt or hardcoded --64.
	<sparc*-*-*>: Simplify setting TLS test code.
	* configure: Regenerate.

2026-01-27  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.ac (fw_as_opt): Set.
	Replace --fatal-warnings by $fw_as_opt.
	(tls_as_opt): Remove --fatal-warnings.
	(gcc_cv_as_tls): Use $fw_as_opt.
	* configure: Regenerate.

2026-01-27  Richard Biener  <rguenther@suse.de>

	PR ipa/116296
	* ipa-modref-tree.cc (modref_access_node::contains): Use
	poly_offset_int for the param offset difference and the
	overlap computation.

2026-01-27  Richard Biener  <rguenther@suse.de>

	PR debug/123376
	* dwarf2out.cc (tree_add_const_value_attribute): Walk all
	initializers for early mangling of referenced decls.
	(mangle_referenced_decls): Also walk subtrees of CONSTRUCTORS.

2026-01-27  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR tree-optimization/123799
	* tree-ssa-forwprop.cc (simplify_vector_constructor): Pun
	conversion element type with integer type.

2026-01-27  Wilco Dijkstra  <wilco.dijkstra@arm.com>

	PR target/123791
	* config/aarch64/aarch64.cc (aarch64_cannot_force_const_mem):
	Always return true for symbols and labels except for large model.
	(aarch64_select_rtx_section): Force .rodata for constants only.

2026-01-27  Wilco Dijkstra  <wilco.dijkstra@arm.com>

	PR target/123792
	* config/aarch64/aarch64.md (aarch64_<optab>_reg_minus<mode>3):
	Add support for invert in shift count.

2026-01-27  Tobias Burnus  <tburnus@baylibre.com>

	* doc/install.texi (gcn): Require Newlib 4.6.0+, replacing 4.3.0+
	requirement with long list of recommended fixes up to post-4.5.0.

2026-01-27  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122749
	* tree-ssa-math-opts.cc (convert_mult_to_fma_1, convert_mult_to_fma):
	Unwrap converts around addend.

2026-01-26  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123820
	* gimple-ssa-strength-reduction.cc (create_add_on_incoming_edge): Use
	the correct type for the stride (lhs if non-pointer).

2026-01-26  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR middle-end/123709
	* final.cc (output_asm_operand_names): Skip over
	opnum which is MAX_RECOG_OPERANDS (invalid).
	(output_asm_insn): Increase opoutput and oporder size
	by 1. For out of range operands, set the opnum to
	MAX_RECOG_OPERANDS.

2026-01-26  Filip Kastl  <fkastl@suse.cz>

	* doc/invoke.texi: Document --param auto-profile-reorder-only.
	* params.opt: Fix spelling.

2026-01-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/122474
	* tree-vectorizer.h (vect_reduc_info_s::neutral_op): New.
	(VECT_REDUC_INFO_NEUTRAL_OP): New.
	* tree-vect-loop.cc (vectorizable_reduction): Adjust condition
	guarding the check for .VEC_SHL_INSERT.

2026-01-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123755
	* tree-vect-stmts.cc (vectorizable_call): Fixup LEN masking
	of unconditional but possibly trapping calls.

2026-01-26  Victor Do Nascimento  <victor.donascimento@arm.com>

	PR tree-optimization/123657
	* tree-vect-loop.cc (vect_analyze_loop_form): Add
	chrec_dont_know check.

2026-01-26  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123794
	* tree-vect-slp.cc (vect_remove_slp_scalar_calls): Unlink
	VOPs for all calls.

2026-01-26  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	PR tree-optimization/123628
	* tree-if-conv.cc (if_convertible_simdclone_stmt_p): New.
	(if_convertible_stmt_p, predicate_statements): Use it.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	* gcc-urlifier.cc (test_gcc_urlifier): Match either positive
	or negative option URLS.

2026-01-25  Roger Sayle  <roger@nextmovesoftware.com>

	PR middle-end/122348
	* expr.cc (store_constructor): Ignore fields where DECL_SIZE
	is NULL_TREE, i.e. flexible array members.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	* common.opt.urls: Regenerated.
	* config/alpha/alpha.opt.urls: Regenerated.
	* config/arc/arc.opt.urls: Regenerated.
	* config/arm/arm.opt.urls: Regenerated.
	* config/avr/avr.opt.urls: Regenerated.
	* config/bpf/bpf.opt.urls: Regenerated.
	* config/cris/cris.opt.urls: Regenerated.
	* config/lynx.opt.urls: Regenerated.
	* config/m68k/m68k.opt.urls: Regenerated.
	* config/mcore/mcore.opt.urls: Regenerated.
	* config/mingw/cygming.opt.urls: Regenerated.
	* config/mips/mips.opt.urls: Regenerated.
	* config/mips/sde.opt.urls: Regenerated.
	* config/mmix/mmix.opt.urls: Regenerated.
	* config/nvptx/nvptx.opt.urls: Regenerated.
	* config/rs6000/linux64.opt.urls: Regenerated.
	* config/rs6000/rs6000.opt.urls: Regenerated.
	* config/rs6000/sysv4.opt.urls: Regenerated.
	* config/sh/sh.opt.urls: Regenerated.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	* doc/invoke.texi (Option Summary): Fix whitespace in @gccoptlist
	tables.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/cppopts.texi: Add missing @opindex entries for
	-fno-* options.
	* doc/invoke.texi: Likewise.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/cppwarnopts.texi: Add missing @opindex entries for
	-Wno-* options.
	* doc/invoke.texi: Likewise.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/cppdiropts.texi: Document -imultiarch.
	* doc/invoke.texi (Option Summary) <Optimization Options>: Add
	-flto-toplevel-asm-heuristics.
	<Program Instrumentation Options>: Remove -fbounds-check.
	<Directory Options>: Add -imultiarch.
	<ARC Options>: Add -mbitops, -mcmem, -munaligned-access.
	<ARM Options>: Add -mvectorize-with-neon-quad and
	-mvectorize-with-neon-double.
	<AVR Options>: Add -mrmw and -mstrict-X.
	<CRIS Options>: Fix typo in -mmax-stackframe.
	<Cygwin and MinGW Options>: Add -muse-libstdc-wrappers.
	<M680x0 Options>: Add several missing CPU options, plus -mxtls.
	<MIPS Options>: Add -mno-data-in-code and -mcode-xonly.
	<MMIX Options>: Add mset-data-start, -mset-program-start, and
	-mno-set-program-start.
	<Nvidia PTX Options>: Add -msoft-stack-reserve-local.
	<RS/6000 and PowerPC Options>: Add -mprofile-kernel, -mbit-word,
	-mno-splat-word-constant, -mno-splat-float-constant,
	-mno-ieee128-constant, and -mno-warn-altivec-long.
	(Optimization Options): Document -flto-toplevel-asm-heuristics.
	(ARC Options): Document -mbitops and -mcmem.
	(ARM Options): Add index entries for mbe32,
	m[no-]fix-cortex-a57-aes-1742098, m[no-]fix-cortex-a72-aes-1655431.
	Document -mvectorize-with-neon-quad and -mvectorize-with-neon-double.
	(AVR Options): Document -mpmem-wrap-around.
	(CRIS Options): Fix typo in -mmax-stackframe.
	(Cygwin and MinGW Options): Document -muse-libstdc-wrappers.
	(DEC Alpha Options): Fix typo in -mfp-regs.
	(eBPF Options): Add @opindex for -mframe-limit.
	(HPPA Options): Fix typos in -mno-disable-fpregs and -mno-gas
	index entries.
	(m680x0 Options): Document -m68302, -m68332, -m68851, and -mfidoa.
	Document -mnoshort and -mnortd aliases.  Document -mxtls.
	(MCore Options): Fix typos in -m[no-]relax-immediates.
	(MIPS Options): Document -mno-data-in-code and -mcode-xonly.
	(MMIX Options): Document -mset-data-start, -mset-program-start, and
	-mno-set-program-start.
	(Nvidia PTX Options): Document -msoft-stack-reserve-local.
	(RS/6000 and PowerPC Options): Document -mprofile-kernel,
	-mbit-word, -msplat-word-constant, -msplat-float-constant,
	-mieee128-constant, and -mwarn-altivec-long.
	(SH Options): Add index entry for -m2e.  Document -m4-400.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* common.opt (fbounds-check): Mark as Undocumented, expand comments
	to explain why.
	* config/frv/frv.opt (msched-lookahead=): Mark unused option as
	Undocumented.
	* config/m68k/m68k.opt (m68851): Add RejectNegative.
	* config/nvptx/nvptx.opt (minit-regs=): Mark as Undocumented.  It's
	not currently documented and seems to have been introduced as a
	stopgap to experiment with different implementation strategies.
	* config/rs6000/476.opt (mpreserve-link-stack): Mark as Undocumented.
	It seems to be an internal option that is enabled by default on the
	cpu that can benefit from it.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* common.opt (gtoggle): Mark RejectNegative.
	* doc/invoke.texi (Option Summary) <Debugging Options>: Remove
	redundant -gno- forms from the list.
	(Debugging Options): Add @opindex for -gno- option forms.
	Copy-edit option descriptions to avoid future tense and use of
	implementor jargon.

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/67300
	* common.opt (foffload-abi, foffload-abi-host-opts): Mark
	"Undocumented".

2026-01-25  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/invoke.texi (Option Summary) <LynxOS Options>: New.
	(LynxOS Options): New section.

2026-01-24  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123803
	* gimple-ssa-strength-reduction.cc (replace_rhs_if_not_dup): For
	pointer lhs use sizetype.

2026-01-23  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR target/123780
	* config/riscv/vector.md: Correct output template.

2026-01-23  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR tree-optimization/123767
	* tree-vect-stmts.cc (vectorizable_store): Only scale offset
	once.
	(vectorizable_load): Ditto.

2026-01-23  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123778
	* genmatch.cc (parser::parse_expr): Peek on the next
	token after eating the `!` or `^`.
	* match.pd (`(op (cnd @0 @1 @2) @3)`, `(op @3 (cnd @0 @1 @2))`):
	Add the type to resulting op.

2026-01-23  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/120258
	PR tree-optimization/106883
	* gimple-ssa-strength-reduction.cc (replace_mult_candidate): Allow for
	basis_name and bump_tree not to be the same type as the lhs.
	Rewrite added multiply for undefined overflow.
	(create_add_on_incoming_edge): Allow for init
	to be a different type from the wanted type.
	Rewrite added add for undefined overflow.
	(replace_rhs_if_not_dup): Rewrite replaced stmts
	for undefined overflow.
	(replace_one_candidate): Allow for basis_name and
	rhs2 to be a different type from lhs.

2026-01-23  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/106883
	* gimple-ssa-strength-reduction.cc (create_add_on_incoming_edge): Rewrite
	the new addition on the edge too.

2026-01-23  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	* gimple-ssa-strength-reduction.cc (introduce_cast_before_cand): Use
	gimple_convert instead of manually creating the gimple_assign.

2026-01-23  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/121347
	PR tree-optimization/106883
	* gimple-ssa-strength-reduction.cc (insert_initializers): Rewrite
	newly inserted statements for undefinedness (overflow).

2026-01-23  Peter Bergner  <bergner@tenstorrent.com>

	PR target/123492
	* config/riscv/riscv-cores.def (RISCV_CORE): Add zvfbfmin to
	tt-ascalon-d8.

2026-01-23  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123776
	* gimple-fold.cc (gimple_fold_partial_load_store): Copy
	the vdef from the old statement to the new statement of a
	load that is also a store to non gimple_reg.

2026-01-23  Richard Sandiford  <rdsandiford@googlemail.com>

	PR rtl-optimization/80357
	PR rtl-optimization/94014
	PR rtl-optimization/123144
	* haifa-sched.cc (model_recompute): Ignore dying uses of registers
	that are not assumed to be live.

2026-01-23  Richard Biener  <rguenther@suse.de>

	* match.pd ((convert (vec_cond ...))): Make sure the
	resulting vec_cond can be expanded.

2026-01-23  Richard Biener  <rguenther@suse.de>

	PR middle-end/123775
	* match.pd ((view_convert (vec_cond ...))): Make sure the
	resulting vec_cond can be expanded.

2026-01-23  Kyrylo Tkachov  <ktkachov@nvidia.com>

	Revert:
	2026-01-20  Kyrylo Tkachov  <ktkachov@nvidia.com>

	PR target/123584
	* config/aarch64/aarch64-sve2.md (@aarch64_sve2_xar<mode>): Use
	aarch64_simd_rshift_imm predicate for rotate amount.

2026-01-23  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/123703
	* builtins.cc (fold_builtin_abs): Return NULL_TREE if type is not
	integral.

2026-01-23  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123771
	* tree-vect-loop.cc (vectorizable_induction): Convert step
	also for VLA vectors.

2026-01-23  Richard Biener  <rguenther@suse.de>

	* config/i386/i386.cc (ix86_vector_costs::finish_cost):
	Avoid selecting masked epilogs for in-order reductions.

2026-01-23  Hongyu Wang  <hongyu.wang@intel.com>

	* config/i386/sse.md (avx2_vbroadcasti128_<mode>): Constraint
	alternative 0 with jm and add gpr16 attr to avoid egpr usage.

2026-01-22  Richard Earnshaw  <rearnsha@arm.com>

	PR target/123742
	* config/arm/neon.md (*smin<mode>3_neon): Renamed to ...
	(*smin<VDQWH:mode>3_neon): ... this.  Add HFmode support.
	(*smax<mode>3_neon): Renamed to ...
	(*smax<VDQWH:mode>3_neon): ... this.  Add HFmode support.

2026-01-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123741
	* tree-vect-stmts.cc (vectorizable_store): Add missing check
	on loop vectorization.

2026-01-22  Jonathan Wakely  <jwakely@redhat.com>

	* tree-vrp.cc (remove_unreachable::fully_replaceable): Fix typo
	in comment.

2026-01-22  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR tree-optimization/123731
	* tree-ssa-forwprop.cc (simplify_vector_constructor): Handle nop
	conversion between during extraction.

2026-01-22  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR target/122869
	* config/riscv/riscv-vector-builtins-bases.cc (fold_fault_load):
	Remove
	* config/riscv/riscv-vector-builtins.cc (function_expander::use_contiguous_load_insn):
	Use new helper.
	(function_expander::prepare_contiguous_load_insn): New helper.
	(function_expander::use_fof_load_insn): New function to emit FoF
	loads.
	* config/riscv/riscv-vector-builtins.h: Declare new functions.

2026-01-22  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR target/123279
	* config/riscv/riscv-vector-builtins-functions.def (REQUIRED_EXTENSIONS):
	Add VECTOR_EXT_NO_XTHEAD.
	(vlm): Move to VECTOR_EXT_NO_XTHEAD.
	(vsm): Ditto.
	(vzext): Ditto.
	(vsext): Ditto.
	(vaaddu): Ditto.
	(vaadd): Ditto.
	(vasubu): Ditto.
	(vasub): Ditto.
	(vfrsqrt7): Ditto.
	(vfrec7): Ditto.
	(vfrec7_frm): Ditto.
	(vfslide1up): Ditto.
	(vfslide1down): Ditto.
	(vluxei8): Ditto.
	(vluxei16): Ditto.
	(vluxei32): Ditto.
	(vluxei64): Ditto.
	(vsuxei8): Ditto.
	(vsuxei16): Ditto.
	(vsuxei32): Ditto.
	(vsuxei64): Ditto.
	(vluxseg): Ditto.
	(vsuxseg): Ditto.
	(vrgatherei16): Ditto.
	(vlseg): Keep.
	(vsseg): Keep.
	(vlsseg): Keep.
	(vssseg): Keep.
	(vloxseg): Keep.
	(vsoxseg): Keep.
	(vlsegff): Keep.
	* config/riscv/riscv-vector-builtins.cc (GTY): Split
	registered_functions into multiple partitions.
	(is_fractional_lmul): New function.
	(xthvector_unsupported_p): Ditto.
	(get_builtin_partition): Ditto.
	(function_builder::add_function): Use new functions.
	(lookup_registered_function): Ditto.
	(builtin_decl): Use lookup_registered_function.
	(gimple_fold_builtin): Ditto.
	(expand_builtin): Ditto.
	(check_builtin_call): Ditto.
	(resolve_overloaded_builtin): Ditto.
	* config/riscv/riscv-vector-builtins.h (enum required_ext):
	(enum rvv_builtin_partition): New enum.
	(required_ext_to_isa_name): Add NO_XTHEAD.
	(required_extensions_specified): Ditto.
	* config/riscv/riscv-vector-switch.def (ENTRY): Remove
	XTheadVector.
	(TUPLE_ENTRY): Ditto.
	* config/riscv/riscv.cc (riscv_expand_mult_with_const_int): Fix
	whitespace.
	(riscv_legitimize_poly_move): Ditto.
	(riscv_vector_fractional_lmul_p): New function.
	(riscv_validate_vector_type): Use new function.

2026-01-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123755
	* tree-vect-stmts.cc (vectorizable_call): Register mask when
	the call could trap.

2026-01-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123756
	* tree-vect-loop.cc (vect_transform_reduction): Remove
	bogus assert.

2026-01-22  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123736
	* tree-ssa-loop-unswitch.cc (hoist_guard): Guard dump message
	on dump_file && (dump_flags & TDF_DETAILS) condition.

2026-01-22  David Malcolm  <dmalcolm@redhat.com>

	PR diagnostics/122622
	* diagnostics/paths-output.cc: Include "diagnostics/file-cache.h".
	(event_range::print_as_text): Generalize the fallback logic for
	special locations to also cover the case where source-printing
	will fail, and show the location for that case.
	(event_range::print_as_html): Likewise.
	(event_range::can_print_source_p): New.

2026-01-22  liuhongt  <hongtao.liu@intel.com>

	PR target/123631
	* config/i386/i386-expand.cc (ix86_vector_duplicate_value):
	Don't force CONST_INT to reg !TARGET_PREFER_BCST_FROM_INTEGER,
	force it to mem instead.
	* config/i386/i386.h (TARGET_PREFER_BCST_FROM_INTEGER): New macro.
	* config/i386/x86-tune.def
	(X86_TUNE_PREFER_BCST_FROM_INTEGER): New tune.

2026-01-21  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	PR target/122781
	* config/s390/vector.md: Don't emulate vec_cmpgtu for 128-bit
	integers for VXE3.

2026-01-20  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	PR rtl-optimization/123380
	* combine.cc (gen_lowpart_for_combine): Don't try to create a
	paradoxical SUBREG if it's going to be rejected by validate_subreg.

2026-01-20  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	PR target/123626
	* config/riscv/vector.md (vxrm_mode): Handle CALL_INSNs, which set
	the attribute to the new VXRM_MODE_CLOBBER state.
	* config/riscv/riscv.cc (riscv_emit_mode_set): Don't emit code when
	VXRM's state changes to VXRM_MODE_CLOBBER.

2026-01-20  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/123314
	* gimple-range.cc (gimple_ranger::range_on_entry): Do not check
	ranger cache for an SSA_NAME with no BB.
	(gimple_ranger::prefill_stmt_dependencies): Stop filling
	dependencies when an out-of IL name is encountered.

2026-01-20  supers1ngular  <supers1ngular@baylibre.com>

	* doc/extend.texi: Swap samp fields to fix overfull hbox.
	* doc/invoke.texi: Ditto.

2026-01-20  Giuseppe D'Angelo  <giuseppe.dangelo@kdab.com>

	PR c++/123639
	* doc/invoke.texi: Add @item for -Wsfinae-incomplete.

2026-01-20  Nathan Sidwell  <nathan@acm.org>

	* diagnostics/context.cc (context::action_after_output): Print
	invocation on ICE.

2026-01-20  David Malcolm  <dmalcolm@redhat.com>

	PR sarif-replay/123056
	* libsarifreplay.cc (struct embedded_link): Move decl earlier.
	(sarif_replayer::append_embeddded_link): New.
	(sarif_replayer::make_plain_text_within_result_message): Move the
	link-replay logic to the above, and skip the link part of
	intra-sarif links.

2026-01-20  Georg-Johann Lay  <avr@gjlay.de>

	* config/avr/avr.cc (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P):
	Return true when WITH_AVRLIBC.

2026-01-20  Alfie Richards  <alfie.richards@arm.com>

	* config/aarch64/aarch64.md: Update comment.
	* config/aarch64/aarch64-simd.md: Change comment to refer to
	aarch64.md.
	* config/aarch64/aarch64-sme.md: Likewise.
	* config/aarch64/aarch64-sve.md: Likewise.
	* config/aarch64/aarch64-sve2.md: Likewise.
	* config/aarch64/aarch64-sve-builtins.def: Update comment.
	* config/aarch64/aarch64-sve-builtins-base.def: Update to refer
	to aarch64-sve-builtins.def.
	* config/aarch64/aarch64-sve-builtins-sme.def: Likewise.
	* config/aarch64/aarch64-sve-builtins-sve2.def: Likewise.

2026-01-20  Jakub Jelinek  <jakub@redhat.com>

	PR target/123724
	* config/aarch64/aarch64.cc (aarch64_possible_by_lane_insn_p): Ignore
	debug stmts.

2026-01-20  Roger Sayle  <roger@nextmovesoftware.com>

	PR rtl-optimization/123585
	* simplify-rtx.cc (simplify_context::simplify_binary_operation_1)
	<case VEC_SELECT>: Correct gcc_assert when optimizing a vec_select
	of a vec_select with differing vector lengths.

2026-01-20  Kyrylo Tkachov  <ktkachov@nvidia.com>

	PR target/123584
	* config/aarch64/aarch64-sve2.md (@aarch64_sve2_xar<mode>): Use
	aarch64_simd_rshift_imm predicate for rotate amount.

2026-01-20  Kyrylo Tkachov  <ktkachov@nvidia.com>

	PR target/123584
	* config/aarch64/aarch64-simd.md (aarch64_xarqv2di): Leave zero
	rotate amounts as zero during expansion.
	(*aarch64_xarqv2di_insn): Account for zero rotate amounts.  Print #
	in rotate immediate.

2026-01-20  Prachi Godbole  <pgodbole@nvidia.com>

	* flag-types.h (enum lto_locality_heuristics): New enum.
	* ipa-locality-cloning.cc (struct templ_info): New struct.
	(struct locality_info): Add templ_info field.
	(templ_hash_map): New hash_map.
	(callee_templ_cmp): Ditto.
	(static_profile_templ_cmp): Ditto.
	(sort_templ_hashes_cmp): Ditto.
	(order_templ_hashes): Ditto.
	(locality_dc_template_p): Ditto.
	(populate_templ_info): Ditto.
	(create_locality_info): Call populate_templ_info.
	(partition_callchain): Call callee_templ_cmp.
	(locality_determine_static_order): Populate and sort templ_hash_map.
	(locality_partition_and_clone): Handle lto_locality_heuristics.
	(lc_execute): Initialize templ_hash_map.
	* params.opt: New param.

2026-01-20  Prachi Godbole  <pgodbole@nvidia.com>

	* ipa-locality-cloning.cc (struct locality_callee_info): New struct.
	(struct locality_info): Ditto.
	(loc_infos): Ditto.
	(get_locality_info): New function.
	(sort_all_callees_default): Ditto.
	(callee_default_cmp): Ditto.
	(populate_callee_locality_info): Ditto.
	(populate_caller_locality_info): Ditto.
	(create_locality_info): Ditto.
	(adjust_recursive_callees): Access node_to_clone by reference.
	(inline_clones): Access node_to_clone and clone_to_node by reference.
	(clone_node_as_needed): Ditto.
	(accumulate_incoming_edge_frequency): Remove function.
	(clone_node_p): New function.
	(partition_callchain): Refactor the function.
	(is_entry_node_p): Call local_p ().
	(locality_determine_ipa_order): Call create_locality_info ().
	(locality_determine_static_order): Ditto.
	(locality_partition_and_clone): Update call to partition_callchain ()
	according prototype.
	(lc_execute): Allocate and free node_to_ch_info, node_to_clone,
	clone_to_node.

2026-01-20  Richard Biener  <rguenther@suse.de>

	PR middle-end/123697
	* gimple-fold.cc (gimple_fold_partial_load_store): Use an
	empty CTOR for a zero else value in .MASK_LOAD_LANES.

2026-01-20  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123729
	* tree-vect-loop.cc (vect_create_epilog_for_reduction): Set
	SSA_NAME_OCCURS_IN_ABNORMAL_PHI if the reduction flows
	across an abnomal edge.

2026-01-20  Richard Biener  <rguenther@suse.de>

	* tree-phinodes.h (phi_arg_index_from_use): Use gphi *.
	(phi_arg_edge_from_use): New helper composing
	phi_arg_index_from_use and gimple_phi_arg_edge.

2026-01-19  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	PR rtl-optimization/121787
	* config/riscv/riscv-vsetvl.cc (pre_vsetvl): Adjust call to
	loop_optimizer_init to avoid making CFG changes.

2026-01-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/sol2.opt.urls: Regenerate.
	* config/darwin.opt.urls: Likewise.
	* config/dragonfly.opt.urls: Likewise.
	* config/freebsd.opt.urls: Likewise.
	* config/gnu-user.opt.urls: Likewise.
	* config/hpux11.opt.urls: Likewise.
	* config/i386/cygwin.opt.urls: Likewise.
	* config/mingw/mingw.opt.urls: Likewise.
	* config/netbsd.opt.urls: Likewise.
	* config/openbsd.opt.urls: Likewise.
	* config/rs6000/aix64.opt.urls: Likewise.
	* config/rtems.opt.urls: Likewise.

2026-01-19  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/sol2.h (CPP_SUBTARGET_SPEC): Remove.
	* config/sol2.opt (pthread): Ignore.
	(pthreads): Likewise.
	* config/i386/sol2.h (CPP_SPEC): Remove.
	(SUBTARGET_CPU_EXTRA_SPECS): Remove cpp_subtarget.
	* doc/invoke.texi (Solaris 2 Options, pthread): Remove.

2026-01-19  Jeff Law  <jeffrey.law@oss.qualcomm.com>
	    Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR target/113666
	* fold-const-call.cc (fold_const_vec_extract): New function.
	(fold_const_call, case CFN_VEC_EXTRACT): Call it.
	* match.pd (IFN_VEC_EXTRACT): Handle extraction from a uniform
	vector.

2026-01-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123061
	PR tree-optimization/123636
	* tree-ssa-loop-im.cc (fill_always_executed_in_1): Change
	outer-to-inner to inner-to-outer iteration.  Update inner
	loop state only when always executed in an immediately
	nested loop.

2026-01-19  Tobias Burnus  <tburnus@baylibre.com>

	* doc/install.texi (GCN): gfx9-4-generic requires LLVM 20.

2026-01-19  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123602
	* tree-ssa-pre.cc (find_or_generate_expression): Do not
	generate references to abnormal SSA names.

2026-01-19  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	* config.gcc: Deprecate -m31.
	* doc/invoke.texi: Deprecate -m31.

2026-01-19  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123656
	* tree-vect-generic.cc (expand_vector_mult): Fix up alg_sub_factor
	handling.  Fix up formatting in alg_add_t_m2 handling.

2026-01-19  Richard Biener  <rguenther@suse.de>

	PR target/123603
	* config/i386/i386.opt (-param=ix86-vect-compare-costs=): Add.
	* config/i386/i386.cc (ix86_autovectorize_vector_modes): Honor it.
	* doc/invoke.texi (ix86-vect-compare-costs): Document.

2026-01-19  Lulu Cheng  <chenglulu@loongson.cn>

	PR target/117575
	* config/loongarch/lasx.md: Modify the range of operand1.

2026-01-18  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123645
	* tree-ssa-phiopt.cc (cond_removal_in_builtin_zero_pattern): Rewrite
	the canonicalization of the args code based on e1/e2 being edges into
	the join block.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	* config/darwin.opt.urls: Regenerated.
	* config/dragonfly.opt.urls: Regenerated.
	* config/freebsd.opt.urls: Regenerated.
	* config/gnu-user.opt.urls: Regenerated.
	* config/hpux11.opt.urls: Regenerated.
	* config/i386/cygwin.opt.urls: Regenerated.
	* config/i386/i386.opt.urls: Regenerated.
	* config/mingw/mingw.opt.urls: Regenerated.
	* config/nds32/nds32.opt.urls: Regenerated.
	* config/netbsd.opt.urls: Regenerated.
	* config/nvptx/nvptx.opt.urls: Regenerated.
	* config/openbsd.opt.urls: Regenerated.
	* config/pru/pru.opt.urls: Regenerated.
	* config/riscv/riscv.opt.urls: Regenerated.
	* config/rl78/rl78.opt.urls: Regenerated.
	* config/rs6000/aix64.opt.urls: Regenerated.
	* config/rs6000/rs6000.opt.urls: Regenerated.
	* config/rs6000/sysv4.opt.urls: Regenerated.
	* config/rtems.opt.urls: Regenerated.
	* config/rx/rx.opt.urls: Regenerated.
	* config/s390/s390.opt.urls: Regenerated.
	* config/s390/tpf.opt.urls: Regenerated.
	* config/sh/sh.opt.urls: Regenerated.
	* config/sol2.opt.urls: Regenerated.
	* config/sparc/sparc.opt.urls: Regenerated.
	* config/v850/v850.opt.urls: Regenerated.
	* config/vax/vax.opt.urls: Regenerated.
	* config/vxworks.opt.urls: Regenerated.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/nds32/nds32.opt: Tidy documentation strings.
	(mbig-endian, mlittle-endian): Remove "Undocumented" flag since
	these are, in fact, documented.
	* doc/invoke.texi (Option Summary) <NDS32 Options>: Document
	-EB, -EL, -mabi, -mfloat-abi, -malways-align, -malign-functions,
	-mfp-as-gp, -mext-dsp, -mext-fpu-fma, -mext-fpu-sp, -mext-fpu-dp,
	-misr-vector-size, -misr-secure, -mcpu, -mconfig-fpu,
	-mconfig-mul, -mconfig-register-ports, -mrelax-hint,
	-msched-prolog-epilog, -mno-ret-in-naked-func, -malways-save-lp,
	-munaligned-access, and -minline-asm-r15.
	(NDS32 Options): Likewise.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/xtensa/uclinux.opt (elf2flt, elf2flt=): Mark as Undocumented.
	* config/xtensa/xtensa.opt (mlra): Likewise.
	* doc/invoke.texi (Option Summary) <Xtensa Options>: Remove
	redundant negative forms plus obsolete -mfused-madd option.
	(Xtensa Options): Likewise undocument -mfused-madd.  List
	negative form of -mforce-no-pic.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/i386/i386.opt (malign-functions): Mark undocumented/unused
	option as Undocumented.
	(malign-jumps): Likewise.
	(malign-loops): Likewise.
	(mbranch-cost, mforce-drap): Mark undocumented options likely
	intended for developer use only as Undocumented.
	(mstv): Correct sense of option in doc string.
	(mavx512cd): Remove extra "and" from doc string.
	(mavx512dq): Likewise.
	(mavx512bw): Likewise.
	(mavx512vl): Likewise.
	(mavx512ifma): Likewise.
	(mavx512bvmi): Likewise.
	* doc/invoke.texi (Options Summary) <x86 Options>: Add
	missing options.  Correct whitespace and re-wrap long lines.
	Remove -mthreads which is now classed as a MinGW option.
	(Cygwin and MinGW Options): Replace existing documentation of
	-mthreads with the more detailed text moved from x86 Options.
	(x86 Options): Move introductory text about ISA extensions before
	the individual options instead of after.  Document them all
	individually instead of as a group, and move immediately after
	-march/-mtune documentation.  Rewrap long lines.  Document
	interaction between SSE and AVX with -mfpmath=sse.  Move -masm
	documentation farther down instead of grouped with options
	affecting floating-point behavior.  Add missing @opindex
	entries.  Rewrite the -mdaz-ftz documentation.  Document
	-mstack-arg-probe.  Copy-editing.  Document -mstv.  Remove
	obsolete warning about -mskip-rax-setup in very old GCC versions.
	Rewrite the -mapx-inline-asm-use-gpr32 documentation.
	Document -mgather and -mscatter.  Split -miamcu documentation
	from -m32/-m64/etc.  Rewrite -munroll-only-small-loops documentation.
	Document -mdispatch-scheduler.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/invoke.texi (Option Summary) <VxWorks Options>: Add -mvthreads.
	(VxWorks Options): Likewise.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/vms/vms.opt (map): Mark as Undocumented.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/visium/visium.opt (menable-trampolines): Mark Undocumented.
	* doc/invoke.texi (Options Summary) <Visium Options>: Remove
	redundant -mno- option.
	(Visium Options): Copy-editing to put in active voice and add markup.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/vax/elf.opt (mno-asm-pic): Mark as Undocumented.
	* doc/invoke.texi (Option Summary) <VAX Options>: Add
	-mvaxc-alignment and -mqmath.
	(VAX Options): Likewise.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/v850/v850.opt: Copy-edit documentation strings.
	(mdebug): Make Undocumented.
	(mno-strict-align): Add RejectNegative.
	(mUS-bit-set): Make Undocumented.
	* doc/invoke.texi (Option Summary) <V850 Options>: Remove
	redundant -mno- forms from list.  Add missing entries.
	(V850 Options): Add @opindex for negative forms.  Combine
	entries for -mapp-regs and -mno-app-regs.  Document -msmall-sld,
	-mno-strict-align, and -mjump-tables-in-data-section.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/invoke.texi (Option Summary) <SPARC Options>: Remove
	redundant -mno- forms from the list.  Add -mptr32 and -mptr64.
	(SPARC Options): Document -mptr32 and -mptr64.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* doc/invoke.texi (Option Summary) <Solaris 2 Options>:
	Remove redundant negative option forms from list.  List both
	-pthread and -pthreads.
	(Solaris 2 Options): Index and list the negative forms here.
	Combine the two @table environments.  Document both -pthread
	and -pthreads.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/sh/sh.opt (mhitachi, mpadstruct): Mark obsolete options
	as Undocumented.
	* doc/invoke.texi (Option Summary) <SH Options>: Add missing
	entries for -m4-* and other options.  Remove redundant -mno- entries
	and obsolete options.  Add missing options -mfdpic, -mlra.
	(SH Options): Combine entries for -mrenesas and -mno-renesas.
	Index and list -mno- forms for other options that have them.
	Remove documentation for obsolete options -mpadstruct and
	-mfused-madd.  Add documentation for -mlra.  Copy-edit and wrap long
	lines throughout the section.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/s390/s390.opt (mbranch-cost): Mark as Undocumented.
	* config/s390/tpf.opt (mtpf-trace-hook-prologue-check=): Likewise.
	(mtpf-trace-hook-prologue-target=): Likewise.
	(mtpf-trace-hook-epilogue-check=): Likewise.
	(mtpf-trace-hook-epilogue-target=): Likewise.
	* doc/invoke.texi (Option Summary) <S/390 and zSeries Options>:
	Remove redundant -mno- entries and add missing options.  Make
	entries with arguments match the syntax in the main documentation.
	(S/390 and zSeries Options): Light copy-editing.  Wrap overly-long
	lines.  Add missing @opindex entries.  Add documention for
	-mmain, -mno-pic-data-is-text-relative, -mindirect-branch,
	-mindirect-branch-jump, -mindirect-branch-call,
	-mfunction-return, -mfunction-return-mem, -mfunction-return-reg,
	-mindirect-branch-table, -mfentry, -mrecord-mcount, -mnop-mcount,
	-mpreserve-args, and -munaligned-symbols.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/rx/rx.opt (mgcc-abi, mrx-abi): Mark as Undocumented.
	* doc/invoke.texi (Option Summary) <RX Options>: Remove redundant
	entries for -mno-forms, correct name of -msmall-data-limit option,
	add -mlra, clean up formatting.
	(RX Options): Minor copy-editing, add -mlra.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	* config/rs6000/darwin.opt (Waltivec-long-deprecated): Mark as
	Undocumented.
	(faltivec, ffix-and-continue, findirect-data): Likewise.
	* config/rs6000/rs6000.opt (mvrsave): Likewise.
	* config/rs6000/sysv4.opt (mno-toc, mtoc, mno-traceback): Likewise.
	(mshlib, mnewlib): Likewise.
	* doc/invoke.texi (Option Summary) <RS/6000 and PowerPC Options>:
	Document only one form of each option.  Add missing options.
	Correct whitespace.
	(RS/6000 and PowerPC Options): Separately document -mpowerpc-gpopt,
	-mpowerpc-gfxopt, -mpowerpc64, -mmfcrf, -mpopcntb, -mpopcntd,
	-mfprnd, -mcmpb, and -mhard-dfp and move their documentation after
	-mcpu=.  Remove documentation for -mtoc which is unimplemented.
	Add missing @opindex entries.  Minor copy-editing and whitespace
	fixes.

2026-01-17  Sandra Loosemore  <sloosemore@baylibre.com>

	PR other/122243
	PR target/71340
	* doc/invoke.texi (Option Summary) <RL78 Options>: Remove
	never-implemented -m64bit-doubles and -m32bit-doubles options.
	Add missing entries for -mrelax, -mes0, -mmul=rl78, -mcpu=rl78,
	and -mrl78.
	(RL78 Options): Likewise.  Add missing @opindex entries.
	Light copy-editing.

2026-01-17  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123513
	* tree.cc (valid_new_delete_pair_p): If new_name[3] or delete_name[3]
	is 'I', return false with *pcertain set to false rather than true.

2026-01-16  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	* hierarchical_discriminator.cc (init_copyid_allocator): Walks the function
	body to find existing max copyids per location.
	(record_existing_copyid): New.

2026-01-16  Alice Carlotti  <alice.carlotti@arm.com>

	PR target/123460
	* config.gcc: Accept hyphens in aarch64 --with-arch extensions.

2026-01-16  David Malcolm  <dmalcolm@redhat.com>

	PR analyzer/123145
	* timevar.def (TV_ANALYZER_SUPERGRAPH): Rename to...
	(TV_ANALYZER_SUPERGRAPH_CREATION): ...this.
	(TV_ANALYZER_SUPERGRAPH_FIXUP_LOCATIONS): New.
	(TV_ANALYZER_SUPERGRAPH_SIMPLIFY): New.
	(TV_ANALYZER_SUPERGRAPH_SORTING): New.

2026-01-16  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/123092
	* lra-constraints.cc (lra_constraints): Push insn on processing
	stack after equivalence substitution.

2026-01-16  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR pch/110746
	* config/host-freebsd.cc: New file.
	* config.host <*-*-freebsd*>: Use it.
	* config/x-freebsd: New file.

2026-01-16  Martin Jambor  <mjambor@suse.cz>

	PR ipa/123412
	* ipa-cp.cc (devirtualization_time_bonus): Do add the indirect
	edge frequency at least once even for targets which cannot be
	inlined.

2026-01-16  Jakub Jelinek  <jakub@redhat.com>

	PR target/123607
	* config/i386/i386.md (movhf_mask): Change constraint on
	match_operand 2's second alternative from 0C to 0.

2026-01-16  Lulu Cheng  <chenglulu@loongson.cn>

	PR target/123521
	* config/loongarch/loongarch.cc
	(loongarch_expand_vector_init_same): Fixed a bug in the
	vector initialization section..

2026-01-16  David Guillen Fandos  <david@davidgf.net>

	* config/mips/mips.h (ISA_HAS_FMIN_FMAX): Add R5900;
	note that, R5900 is not IEEE754 fully compatiable.

2026-01-15  Marek Polacek  <polacek@redhat.com>
	    Jakub Jelinek  <jakub@redhat.com>

	PR c++/120775
	PR c++/123081
	PR c++/122634
	* attribs.cc (attribute_value_equal): Return false if either attribute
	is ATTR_UNIQUE_VALUE_P.
	(merge_attributes): Handle lists with ATTR_UNIQUE_VALUE_P values.
	* doc/invoke.texi: Document -freflection.
	* dwarf2out.cc (is_base_type) <case default>: Check
	TREE_CODE >= LAST_AND_UNUSED_TREE_CODE instead of is_cxx_auto.
	(gen_type_die_with_usage): For TREE_CODE >= LAST_AND_UNUSED_TREE_CODE
	trees use use DW_TAG_unspecified_type.
	* tree-core.h (struct tree_base): Update a comment.
	* tree.h (ATTR_UNIQUE_VALUE_P): Define.
	(BINFO_BASE_ACCESSES): Update the comment.

2026-01-15  Peter Damianov  <peter0x44@disroot.org>

	PR driver/123504
	* config/i386/cygming.h (EXTRA_DEFAULT_COMPILERS): Comment out
	.res spec to allow COFF files with .res extension to pass
	through to the linker.
	* config/aarch64/cygming.h (EXTRA_DEFAULT_COMPILERS): Likewise.

2026-01-15  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	* ira-lives.cc (ira_implicitly_set_insn_hard_regs): Honor hard
	register constraints.
	* ira.cc (ira_setup_alts): Ditto.

2026-01-15  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	* doc/extend.texi: Document current limitations of hard register
	constraints.
	* stmt.cc (parse_output_constraint): Reject multiple hard
	register constraints or a combination of hard register
	constraints and regular register constraints in one alternative.
	(parse_input_constraint): Ditto.

2026-01-15  Alfie Richards  <alfie.richards@arm.com>

	* config/aarch64/aarch64-simd.md: Add comment.
	* config/aarch64/aarch64-sme.md: Likewise.
	* config/aarch64/aarch64-sve-builtins-base.def: Likewise.
	* config/aarch64/aarch64-sve-builtins-sme.def: Likewise.
	* config/aarch64/aarch64-sve-builtins-sve2.def: Likewise.
	* config/aarch64/aarch64-sve-builtins.def: Likewise.
	* config/aarch64/aarch64-sve.md: Likewise.
	* config/aarch64/aarch64-sve2.md: Likewise.
	* config/aarch64/aarch64.md: Likewise.

2026-01-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/sparc/sparc.h (TARGET_SUN_TLS): Remove.
	* config/sparc/sol2.h (TARGET_SUN_TLS): Likewise.
	* config/sparc/sparc.cc (TARGET_ASM_OUTPUT_DWARF_DTPREL): Guard
	with HAVE_GNU_AS.
	(sparc_tls_got): Guard with !HAVE_GNU_AS.
	(sparc_legitimize_tls_address): Likewise.
	* config/sparc/sparc.md ("tls_delay_slot"): Likewise.
	("@tie_add<P:mode>"): Likewise.

2026-01-15  Jakub Jelinek  <jakub@redhat.com>

	PR debug/121045
	* tree-pretty-print.h (dump_location): Add new dump_flags_t
	argument defaulted to TDF_NONE.
	* tree-pretty-print.cc (dump_location): Add flags argument.  Don't
	print discriminator if TDF_COMPARE_DEBUG bit is set in flags.
	(dump_block_node, dump_generic_node): Pass through flags to
	dump_location.
	* gimple-pretty-print.cc (dump_gimple_phi, pp_gimple_stmt_1,
	dump_implicit_edges): Likewise.
	(gimple_dump_bb_as_sarif_properties): Pass dump_flags to
	dump_location.
	* print-rtl.cc (rtx_writer::print_rtx_operand_code_L): If dump_flags
	has TDF_COMPARE_DEBUG bit set, don't print discriminators.

2026-01-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/i386/sol2.h [!HAVE_GNU_AS] (ASM_CPU32_DEFAULT_SPEC): Use -m32.
	(ASM_CPU64_DEFAULT_SPEC): Use -m64.

2026-01-15  Josef Melcr  <josef.melcr@suse.com>

	PR ipa/122852
	* cgraph.cc (cgraph_node::verify_node): Verify that callback
	edges are unreachable when the carrying edge is unreachable.
	* ipa-fnsummary.cc (redirect_to_unreachable): Redirect callback
	edges to unreachable when redirecting the carrying edge.

2026-01-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.ac (gcc_cv_as_sparc_ua_pcrel): Remove.
	(gcc_cv_as_sparc_ua_pcrel_hidden): Likewise.
	* configure: Regenerate.
	* config.in: Regenerate.
	* config/sparc/sparc.h (ASM_PREFERRED_EH_DATA_FORMAT): Remove
	!HAVE_AS_SPARC_UA_PCREL, !HAVE_AS_SPARC_UA_PCREL_HIDDEN support.
	* config/sparc/sol2.h (ASM_PREFERRED_EH_DATA_FORMAT): Remove.
	* config/sparc/sparc.cc (TARGET_ASM_OUTPUT_DWARF_DTPREL): Remove
	HAVE_AS_SPARC_UA_PCREL guard.

2026-01-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/sparc/sparc.h (TARGET_TLS): Define as HAVE_AS_TLS.
	Update comment.
	(TARGET_SUN_TLS): Define as 0.
	(TARGET_GNU_TLS): Remove.
	* config/sparc/freebsd.h (TARGET_SUN_TLS): Remove.
	(TARGET_GNU_TLS): Remove.
	* config/sparc/linux.h: Likewise.
	* config/sparc/linux64.h: Likewise.
	* config/sparc/sol2.h (TARGET_SUN_TLS): Redefine as 1.
	Guard with HAVE_AS_TLS && !HAVE_GNU_AS.
	(TARGET_GNU_TLS): Remove.
	* config/sparc/sparc.cc (TARGET_ASM_OUTPUT_DWARF_DTPREL): Use
	!TARGET_SUN_TLS in guard.
	with !TARGET_SUN_TLS only.
	* config/sparc/sparc.md ("tls_delay_slot"): Guard with
	!TARGET_SUN_TLS.

2026-01-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR target/38118
	* config/sparc/sol2.h (ASM_OUTPUT_ALIGNED_COMMON): Remove.

2026-01-15  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	* cfgloopmanip.cc (duplicate_loop_body_to_header_edge): Assign
	hierarchical discriminators for loop unrolling.
	* cfgloopmanip.h (DLTHE_RECORD_HIERARCHICAL_DISCRIMINATOR): New flag.
	* tree-ssa-loop-ivcanon.cc (try_unroll_loop_completely): Pass flag
	to enable hierarchical discriminator assignment.
	(try_peel_loop): Likewise.

2026-01-15  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	* gimple-loop-versioning.cc (loop_versioning::version_loop): Assign
	copyid discriminators to distinguish different loop versions.

2026-01-15  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	* tree-vect-loop-manip.cc (vect_loop_versioning): Assign copyid
	discriminators for vectorized and scalar loop versions.
	* tree-vect-loop.cc (vect_transform_loop): Assign copyid
	discriminators for vectorized and scalar loop versions.

2026-01-15  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	* Makefile.in: Add hierarchical_discriminator.o to OBJS.
	* hierarchical_discriminator.cc: New file.
	* hierarchical_discriminator.h: New file.
	* function.h (copyid_alloc): New.
	* input.cc (location_with_discriminator_components): New function.
	(get_discriminator_components_from_loc): Likewise.
	* input.h (DISCR_BASE_BITS): New constant.
	(DISCR_MULTIPLICITY_BITS): Likewise.
	(DISCR_COPYID_BITS): Likewise.
	(DISCR_UNUSED_BITS): Likewise.
	(DISCR_BASE_MASK): Likewise.
	(DISCR_MULTIPLICITY_MASK): Likewise.
	(DISCR_COPYID_MASK): Likewise.
	(DISCR_BASE_SHIFT): Likewise.
	(DISCR_MULTIPLICITY_SHIFT): Likewise.
	(DISCR_COPYID_SHIFT): Likewise.
	(DISCR_BASE_MAX): Likewise.
	(DISCR_MULTIPLICITY_MAX): Likewise.
	(DISCR_COPYID_MAX): Likewise.
	(location_with_discriminator_components): New function declaration.
	(get_discriminator_components_from_loc): Likewise.

2026-01-15  DengJianbo  <dengjianbo@loongson.cn>

	* config/loongarch/loongarch.md: Remove condition in template
	movdi_symbolic_off64.

2026-01-14  Peter Bergner  <bergner@tenstorrent.com>

	PR target/123092
	* config/riscv/constraints.md (ZD): Disable when xmipscbop is disabled.

2026-01-14  Martin Jambor  <mjambor@suse.cz>

	PR ipa/123542
	* ipa-cp.cc (ipa_value_from_jfunc): Always use
	ipacp_value_safe_for_type.  Bail out if parm_type is NULL.

2026-01-14  Wilco Dijkstra  <wilco.dijkstra@arm.com>

	PR target/121240
	* config/aarch64/aarch64.md (mov<mode>): Expand FP immediates early.
	* config/aarch64/aarch64.cc (aarch64_select_rtx_section): Force
	immediates <= 8 bytes to constdata.
	(aarch64_rtx_costs): Increase cost of CONST_DOUBLE loaded from memory.

2026-01-14  Wilco Dijkstra  <wilco.dijkstra@arm.com>

	PR target/114528
	* config/aarch64/aarch64.cc (aarch64_check_mov_add_imm12):
	New function to check and emit MOV+ADD/SUB immediates.
	(aarch64_internal_mov_immediate): Add support for MOV+ADD/SUB
	immediates.

2026-01-14  Tejas Belagod  <tejas.belagod@arm.com>

	PR middle-end/123392
	* cfgexpand.cc (expand_debug_expr): Handle variable-length initializer
	for CONSTRUCTOR.

2026-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/123115
	* defaults.h (EH_RETURN_DATA_REGNO): Add void (N) to the macro
	definition inside of a comma expression before INVALID_REGNUM.

2026-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR target/120250
	* combine.cc (recog_for_combine): Don't try to put SET_SRC
	into a constant pool if SET_DEST is pc_rtx.

2026-01-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123190
	* tree-vectorizer.h (vect_load_store_data): Add n_loads member.
	* tree-vect-stmts.cc (get_load_store_type): Record the
	number of required loads for permuted loads.
	(vectorizable_load): Make use of this when costing loads
	for VMAT_CONTIGUOUS[_REVERSE].

2026-01-14  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123190
	* tree-vect-loop.cc (vect_analyze_loop_costing): Allow
	vectorizing loops with a single scalar iteration iff the
	vectorization factor is 1.

2026-01-14  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/123544
	* simplify-rtx.cc (simplify_context::simplify_binary_operation_1)
	<case AND>: Don't canonicalize (subreg (lshiftrt (x cnt)) low) into
	(lshiftrt (subreg x low) cnt) if the SUBREG is paradoxical.

2026-01-14  Prathamesh Kulkarni  <prathameshk@nvidia.com>

	* auto-profile.cc: (string_table::filenames): New method.
	(function_instance::timestamp_): New member.
	(function_instance::timestamp): New accessor for timestamp_ member.
	(function_instance::set_timestamp): New function.
	(function_instance::prop_timestamp): Likewise.
	(function_instance::prop_timestamp_1): Likewise.
	(function_instance::function_instance): Initialize timestamp_ to 0.
	(function_instance::read_function_instance): Adjust prototype by
	replacing head_count with toplevel param with default value true, and
	stream in head_count and timestamp values from gcov file.
	(autofdo::timestamp_info_map): New std::map.
	(autofdo_source_profile::get_function_instance_by_decl): New argument
	filename with default value NULL.
	(autofdo_source_profile::read): Populate timestamp_info_map and
	propagate timestamp to inlined instances from toplevel function.
	(afdo_annotate_cfg): Assign node->tp_first_run based on
	timestamp_info_map and bail out of annotation if
	param_auto_profile_reorder_only is enabled.
	* params.opt: New param auto-profile-reorder-only.

2026-01-14  Lili Cui  <lili.cui@intel.com>

	* config/i386/x86-tune.def (X86_TUNE_ALIGN_TIGHT_LOOPS):
	disable tight loop alignment for m_CORE_ATOM.

2026-01-14  Daniel Barboza  <daniel.barboza@oss.qualcomm.com>

	* match.pd: remove 'fold_overflow_warning' references.
	* tree.h (TYPE_OVERFLOW_UNDEFINED): remove note telling
	that we must use warn_strict_overflow for every optimization
	based on TYPE_OVERFLOW_UNDEFINED.

2026-01-13  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	* match.pd (`(T1)(a bit_op (T2)b)`): Remove redundant
	type checks.

2026-01-13  Pengxuan Zheng  <pengxuan.zheng@oss.qualcomm.com>

	PR tree-optimization/123109
	* fold-const.cc (fold_binary_loc): Remove (X >> C) NE/EQ 0 -> X LT/GE 0
	folding.
	* match.pd (`(X >> C) NE/EQ 0 -> X LT/GE 0`): New pattern.

2026-01-13  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/119402
	* match.pd (`(a*zero_one_valued_p) & b`): New pattern.

2026-01-13  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR rtl-optimization/123312
	* ifcvt.cc (noce_try_cond_zero_arith): Rename to ...
	(noce_try_cond_arith): This. For AND try `cmp ? a : -1`
	also to see which one cost less.
	(noce_process_if_block): Handle the rename.

2026-01-13  Jonathan Yong  <10walls@gmail.com>

	* config/i386/winnt-utf8.manifest: enable longPathAware.

2026-01-13  Jonathan Yong  <10walls@gmail.com>

	PR driver/108865
	* config/i386/winnt-utf8.manifest: correct XML tags

2026-01-13  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	PR tree-optimization/123530
	* match.pd (reassociating xor to enable rotations): Verify constants
	fit into a uhwi before trying to extract them as a uhwi.

2026-01-13  Richard Biener  <rguenther@suse.de>

	PR middle-end/123573
	* fold-const.cc (fold_vec_perm): Actually check, not assert,
	that input and output vector element numbers agree.
	* match.pd (vec_perm @0 @1 @2): Make sure element numbers
	are the same when folding to an input vector and wrap that
	inside a VIEW_CONVERT_EXPR.

2026-01-13  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR tree-optimization/123525
	* tree-ssa-forwprop.cc (simplify_vector_constructor): Use
	converted source type for conversion bit field ref.

2026-01-13  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR tree-optimization/123301
	* tree-if-conv.cc (convert_scalar_cond_reduction):
	Disallow vector types.

2026-01-13  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR rtl-optimization/123501
	PR rtl-optimization/123444
	* rtlanal.cc (nonzero_bits1): Use operand mode instead of
	operation mode.

2026-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR libstdc++/123396
	* configure.ac (gcc_cv_ld_use_as_needed_ldscript): New test.
	(USE_LD_AS_NEEDED_LDSCRIPT): New AC_DEFINE.
	* gcc.cc (LINK_LIBATOMIC_SPEC): Use "-latomic_asneeded" instead
	of LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
	if USE_LD_AS_NEEDED_LDSCRIPT is defined.
	(init_gcc_specs): Use "-lgcc_s_asneeded" instead of
	LD_AS_NEEDED_OPTION " -lgcc_s " LD_NO_AS_NEEDED_OPTION
	if USE_LD_AS_NEEDED_LDSCRIPT is defined.
	* config.in: Regenerate.
	* configure: Regenerate.

2026-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123539
	* tree-vect-loop.cc (vect_create_epilog_for_reduction):
	Use the compute vectype to pun down to smaller or element
	size for by-element reductions.

2026-01-13  Kito Cheng  <kito.cheng@sifive.com>

	* tree-ssa-sccvn.cc (vn_walk_cb_data::push_partial_def): Use
	build_bitint_type for BITINT_TYPE when maxsizei exceeds
	MAX_FIXED_MODE_SIZE.

2026-01-13  Kito Cheng  <kito.cheng@sifive.com>

	PR target/117581
	* config/riscv/riscv.cc (riscv_bitint_type_info): New function.
	(TARGET_C_BITINT_TYPE_INFO): Define.

2026-01-13  liuhongt  <hongtao.liu@intel.com>

	PR target/123484
	* config/i386/mmx.md (divv4hf3): Add TARGET_MMX_WITH_SSE to
	the condition.
	(cmlav4hf4): Ditto.
	(cmla_conjv4hf4): Ditto.
	(cmulv4hf3): Ditto.
	(cmul_conjv4hf3): Ditto.

2026-01-12  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/122845
	PR tree-optimization/122843
	* match.pd (`(T1)(a bit_op (T2)b)`): Also
	simplify if T1 is the same type as b and T2 is wider
	type than T1.

2026-01-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123528
	* tree-vect-patterns.cc (vect_recog_bool_pattern): Restore
	INTEGRAL_TYPE_P check but also allow SCALAR_FLOAT_TYPE_P.

2026-01-12  Martin Jambor  <mjambor@suse.cz>

	PR ipa/123543
	* ipa-cp.cc (propagate_bits_across_jump_function): Fix test for
	recipient_only_p.

2026-01-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/122830
	PR tree-optimization/122824
	* tree-ssa-sccvn.cc (vn_reference_lookup_3): Generalize
	aggregate copy handling when no variable offsets are
	involved.

2026-01-12  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.cc (vn_reference_lookup_3): Only tentatively
	accumulate extra_off when tentatively consuming components
	during aggregate copy handling.

2026-01-12  Richard Biener  <rguenther@suse.de>

	PR middle-end/123175
	* match.pd (vec_perm @0 @1 @2): Fixup for inputs having a
	different number of elements than the result.
	* tree-vect-generic.cc (lower_vec_perm): Likewise.

2026-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/123523
	* simplify-rtx.cc (simplify_const_binary_operation): Use
	DImode for VOIDmode shift and truncation counts if int_mode
	is narrower than HOST_BITS_PER_WIDE_INT rather than
	word_mode if int_mode it is narrower than BITS_PER_WORD.

2026-01-12  Dhruv Chawla  <dhruvc@nvidia.com>

	* auto-profile.cc (autofdo_source_profile::offline_unrealized_inlines):
	Add missing check for in_map.

2026-01-11  Michal Jires  <mjires@suse.cz>

	* asm-toplevel.cc (mark_fragile_ref_by_asm):
	Add marked_local to handle symbol as local.
	(ipa_asm_heuristics): New.
	(class pass_ipa_asm): New.
	(make_pass_ipa_asm_lgen): New.
	(make_pass_ipa_asm_wpa): New.
	* common.opt: New flto-toplevel-asm-heuristics.
	* passes.def: New asm passes.
	* timevar.def (TV_IPA_LTO_ASM): New.
	* tree-pass.h (make_pass_ipa_asm_lgen): New.
	(make_pass_ipa_asm_wpa): New.

2026-01-11  Michal Jires  <mjires@suse.cz>

	* asm-toplevel.cc (mark_fragile_ref_by_asm): New.
	(struct constraint_data): New.
	(walk_through_constraints): Handle .local definitions.
	(analyze_toplevel_extended_asm): Propagate constraint_data.

2026-01-11  Michal Jires  <mjires@suse.cz>

	* cgraph.h: Add must_remain_in_tu_*.
	* cgraphclones.cc (cgraph_node::create_clone): Propagate
	must_remain_in_tu_body.
	* cif-code.def (MUST_REMAIN_IN_TU): New.
	* ipa-icf.cc (sem_function::equals_wpa): Check
	must_remain_in_tu_*
	(sem_variable::equals_wpa): Likewise.
	* ipa-inline-transform.cc (inline_call): Propagate
	must_remain_in_tu_body.
	* ipa-inline.cc (can_inline_edge_p): Check
	must_remain_in_tu_body.
	* lto-cgraph.cc (lto_output_node): Output must_remain_in_tu_*
	(lto_output_varpool_node): Likewise.
	(input_overwrite_node): Input must_remain_in_tu_*.
	(input_varpool_node): Likewise.
	* tree.cc (decl_address_ip_invariant_p): Check
	must_remain_in_tu_name.
	* varpool.cc (varpool_node::ctor_useable_for_folding_p): Check
	must_remain_in_tu_body.

2026-01-11  Michal Jires  <mjires@suse.cz>

	* lto-cgraph.cc (compute_ltrans_boundary): Add symbols
	referenced from asm_nodes.
	* lto-streamer-out.cc (lto_output): Move adding asm_nodes
	to...
	* passes.cc (ipa_write_summaries): ...here.

2026-01-11  Michal Jires  <mjires@suse.cz>

	* ipa-free-lang-data.cc (find_decls_types_in_asm): New.
	(free_lang_data_in_cgraph): Use find_decls_types_in_asm.
	* lto-cgraph.cc (input_cgraph_1): Move asm to..
	(input_toplevel_asms): ..here.
	* lto-streamer-in.cc (lto_input_toplevel_asms):
	Allow extended asm.
	* lto-streamer-out.cc (lto_output_toplevel_asms):
	Allow extended asm.
	(lto_output_toplevel_asms): Allow ASM_EXPR.
	* lto-streamer.h (input_toplevel_asms): New.

2026-01-11  Michal Jires  <mjires@suse.cz>

	PR ipa/122458
	* Makefile.in: Add new file.
	* cgraph.h (analyze_toplevel_extended_asm): New.
	* cgraphunit.cc (symbol_table::finalize_compilation_unit):
	Call analyze_toplevel_extended_asm.
	* asm-toplevel.cc: New file.

2026-01-11  Michal Jires  <mjires@suse.cz>

	* cgraph.cc (cgraph_node_cannot_be_local_p_1): Check ref_by_asm.
	(cgraph_node::verify_node): Likewise.
	* cgraph.h (cgraph_node::only_called_directly_or_aliased_p):
	Likewise.
	(cgraph_node::can_remove_if_no_direct_calls_and_refs_p):
	Likewise.
	(varpool_node::can_remove_if_no_refs_p): Likewise.
	(varpool_node::all_refs_explicit_p): Likewise.
	* cgraphunit.cc (symtab_node::needed_p): Likewise.
	(analyze_functions): Likewise.
	* gimple-ssa-pta-constraints.cc (refered_from_nonlocal_fn):
	Likewise.
	(refered_from_nonlocal_var): Likewise.
	(ipa_create_global_variable_infos): Likewise.
	* ipa-comdats.cc (ipa_comdats): Likewise.
	* ipa-visibility.cc (cgraph_externally_visible_p): Likewise.
	(varpool_node::externally_visible_p): Likewise.
	* ipa.cc (symbol_table::remove_unreachable_nodes): Likewise.
	* lto-cgraph.cc (lto_output_node): Output ref_by_asm.
	(lto_output_varpool_node): Likewise.
	(input_overwrite_node): Input ref_by_asm.
	(input_varpool_node): Likewise.
	* symtab.cc (address_matters_1): Check ref_by_asm.

2026-01-11  Hans-Peter Nilsson  <hp@axis.com>

	* config/cris/cris.cc (cris_rtx_costs) <POST_INC>: Handle POST_INC
	as ZERO_EXTEND and SIGN_EXTEND, i.e. as an operator without cost.

2026-01-10  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	* config/mcore/mcore.h (ASM_OUT_ADDR_DIFF_ELT): Remove.

2026-01-10  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	* config/s390/s390-modes.def (FLOAT_MODE): Add HF mode.
	(VECTOR_MODE): Add V{1,2,4,8,16}HF modes.
	* config/s390/s390.cc (s390_scalar_mode_supported_p): For 64-bit
	targets z10 and newer support HF mode.
	(s390_vector_mode_supported_p): Add HF mode.
	(s390_register_move_cost): Keep HF mode operands in registers.
	(s390_legitimate_constant_p): Support zero constant.
	(s390_secondary_reload): For GPR to FPR moves a secondary reload
	register is required.
	(s390_secondary_memory_needed): GPR<->FPR moves don't require
	secondary memory.
	(s390_libgcc_floating_mode_supported_p): For 64-bit targets z10
	and newer support HF mode.
	(s390_hard_regno_mode_ok): Allow HF mode for FPRs and VRs.
	(s390_function_arg_float): Consider HF mode, too.
	(s390_excess_precision): For EXCESS_PRECISION_TYPE_FLOAT16
	return FLT_EVAL_METHOD_PROMOTE_TO_FLOAT16.
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Define.
	* config/s390/s390.md (movhf): Define.
	(reload_half_gprtofpr_z10): Define.
	(signbithf2): Define.
	* config/s390/vector.md: Add new vector modes to various
	iterators.

2026-01-10  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123417
	* tree-cfgcleanup.cc (maybe_remove_forwarder_block): Always
	protect latches.

2026-01-10  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123431
	* gimple-range-op.cc (gimple_range_op_handler::maybe_builtin_call):
	Punt if type-generic builtins with a single argument don't have
	exactly one argument.  For returns_arg punt if call doesn't have
	at least one argument.

2026-01-09  Robin Dapp  <rdapp@oss.qualcomm.com>

	PR tree-optimization/123414
	* tree-ssa-forwprop.cc (simplify_vector_constructor):
	Use ssizetype as mask type.

2026-01-09  Jakub Jelinek  <jakub@redhat.com>

	* config/loongarch/genopts/gen-evolution.awk: Update
	copyright year.
	(copyright_header): Separate parts of Copyright word
	with " " so that it doesn't get matched by update-copyright.py.
	(gen_full_header, gen_full_source, gen_full_def): Include
	2026 year in the ranges.

2026-01-09  David Malcolm  <dmalcolm@redhat.com>

	* channels.h (gcc::topics::analyzer_events::subscriber): New
	forward decl.
	(compiler_channels::analyzer_events_channel): New field.
	* doc/plugins.texi (PLUGIN_ANALYZER_INIT): Delete.
	* plugin.cc (register_callback): Delete PLUGIN_ANALYZER_INIT.
	(invoke_plugin_callbacks_full): Likewise.
	* plugin.def (PLUGIN_ANALYZER_INIT): Delete this event.

2026-01-09  David Malcolm  <dmalcolm@redhat.com>

	* Makefile.in (OBJS): Add tree-diagnostic-cfg.o.
	(OBJS-libcommon): Add custom-sarif-properties/cfg.o,
	diagnostics/digraphs-to-dot.o, and
	diagnostics/digraphs-to-dot-from-cfg.o.
	* cfghooks.cc: Define INCLUDE_VECTOR.  Add includes of
	"diagnostics/sarif-sink.h" and "custom-sarif-properties/cfg.h".
	(dump_bb_as_sarif_properties): New.
	* cfghooks.h (diagnostics::sarif_builder): New forward decl.
	(json::object): New forward decl.
	(cfg_hooks::dump_bb_as_sarif_properties): New callback field.
	(dump_bb_as_sarif_properties): New decl.
	* cfgrtl.cc (rtl_cfg_hooks): Populate the new callback
	field with rtl_dump_bb_as_sarif_properties.
	(cfg_layout_rtl_cfg_hooks): Likewise.
	* custom-sarif-properties/cfg.cc: New file.
	* custom-sarif-properties/cfg.h: New file.
	* diagnostics/digraphs-to-dot-from-cfg.cc: New file, partly
	adapted from gcc/graph.cc.
	* diagnostics/digraphs-to-dot.cc: New file.
	* diagnostics/digraphs-to-dot.h: New file, based on material in...
	* diagnostics/digraphs.cc: Include
	"diagnostics/digraphs-to-dot.h".
	(class conversion_to_dot): Rework and move to above.
	(make_dot_graph_from_diagnostic_graph): Likewise.
	(make_dot_node_from_digraph_node): Likewise.
	(make_dot_edge_from_digraph_edge): Likewise.
	(conversion_to_dot::get_dot_id_for_node): Likewise.
	(conversion_to_dot::has_edges_p): Likewise.
	(digraph::make_dot_graph): Use to_dot::converter::make and invoke
	the result to make the dot graph.
	* diagnostics/digraphs.h (digraph:get_all_nodes): New accessor.
	* diagnostics/html-sink.cc
	(html_builder::m_per_logical_loc_graphs): New field.
	(html_builder::add_graph_for_logical_loc): New.
	(html_sink::report_digraph_for_logical_location): New.
	* diagnostics/sarif-sink.cc (sarif_array_of_unique::get_element):
	New.
	(sarif_builder::report_digraph_for_logical_location): New.
	(sarif_sink::report_digraph_for_logical_location): New.
	* diagnostics/sink.h: Include "diagnostics/logical-locations.h".
	(sink::report_digraph_for_logical_location): New vfunc.
	* diagnostics/text-sink.h
	(text_sink::report_digraph_for_logical_location): New.
	* doc/invoke.texi (fdiagnostics-add-output): Clarify wording.
	Distinguish between scheme-specific vs GCC-specific keys, and add
	"cfgs" as the first example of the latter.
	* gimple-pretty-print.cc: Include "cfghooks.h", "json.h", and
	"custom-sarif-properties/cfg.h".
	(gimple_dump_bb_as_sarif_properties): New.
	* gimple-pretty-print.h (diagnostics::sarif_builder): New forward
	decl.
	(json::object): Likewise.
	(gimple_dump_bb_as_sarif_properties): New.
	* graphviz.cc (get_compass_pt_from_string): New
	* graphviz.h (get_compass_pt_from_string): New decl.
	* libsarifreplay.cc (sarif_replayer::handle_graph_object): Fix
	overlong line.
	* opts-common.cc: Define INCLUDE_VECTOR.
	* opts-diagnostic.cc: Define INCLUDE_LIST.  Include
	"diagnostics/sarif-sink.h", "tree-diagnostic-sink-extensions.h",
	"opts-diagnostic.h", and "pub-sub.h".
	(class gcc_extra_keys): New class.
	(opt_spec_context::opt_spec_context): Add "client_keys" param and
	pass to dc_spec_context.
	(handle_gcc_specific_keys): New.
	(try_to_make_sink): New.
	(gcc_extension_factory::singleton): New.
	(handle_OPT_fdiagnostics_add_output_): Rework to use
	try_to_make_sink.
	(handle_OPT_fdiagnostics_set_output_): Likewise.
	* opts-diagnostic.h: Include "diagnostics/sink.h".
	(class gcc_extension_factory): New.
	* opts.cc: Define INCLUDE_LIST.
	* print-rtl.cc: Include "dumpfile.h", "cfghooks.h", "json.h", and
	"custom-sarif-properties/cfg.h".
	(rtl_dump_bb_as_sarif_properties): New.
	* print-rtl.h (diagnostics::sarif_builder): New forward decl.
	(json::object): Likewise.
	(rtl_dump_bb_as_sarif_properties): New decl.
	* tree-cfg.cc (gimple_cfg_hooks): Use
	gimple_dump_bb_as_sarif_properties for new callback field.
	* tree-diagnostic-cfg.cc: New file, based on material in graph.cc.
	* tree-diagnostic-sink-extensions.h: New file.
	* tree-diagnostic.cc: Define INCLUDE_LIST.  Include
	"tree-diagnostic-sink-extensions.h".
	(compiler_ext_factory): New.
	(tree_diagnostics_defaults): Set gcc_extension_factory::singleton
	to be compiler_ext_factory.

2026-01-09  David Malcolm  <dmalcolm@redhat.com>

	* channels.h: New file.
	* context.cc: Define INCLUDE_LIST.  Include "channels.h".
	(gcc::context::context): Create m_channels.
	(gcc::context::~context): Delete it.
	* context.h (struct compiler_channels): New forward decl.
	(gcc::context::get_channels): New accessor.
	(gcc::context::m_channels): New field.
	* passes.cc: Define INCLUDE_LIST.  Include "topics/pass-events.h"
	and "channels.h".
	(execute_one_pass): If the global context's pass_events_channel
	has subscribers, publish before_pass and after_pass events to it.
	* topics/pass-events.h: New file.

2026-01-09  David Malcolm  <dmalcolm@redhat.com>

	* Makefile.in (OBJS-libcommon): Add pub-sub.o.
	* pub-sub.cc: New file.
	* pub-sub.h: New file.
	* selftest-run-tests.cc (selftest::run_tests): Call
	selftest::pub_sub_cc_tests.
	* selftest.h (selftest::pub_sub_cc_tests): New decl.

2026-01-09  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR target/123457
	* config/aarch64/aarch64-sve-builtins.cc (struct registered_function_hasher):
	Change base class to ggc_ptr_hash.
	(initial_indexes): Mark with GTY.
	(function_table): Likewise.
	(handle_arm_sve_h): Allocate function_table from ggc instead of heap.

2026-01-09  Jakub Jelinek  <jakub@redhat.com>

	* doc/invoke.texi (-x): Add c++-system-module, objc-cpp-output,
	objc++-cpp-output, adascil, adawhy, modula-2, modula-2-cpp-output,
	rust, algol68 and lto as further possible option arguments.

2026-01-09  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/123121
	* lra-remat.cc (bad_for_rematerialization_p): Consider div/mod ops.
	(operand_to_remat): Exclude rematerialization of insns with
	multiple sets.

2026-01-09  Peter Bergner  <bergner@tenstorrent.com>

	PR target/123492
	* config/riscv/riscv-cores.def (RISCV_CORE)<tt-ascalon-d8>: Add missing
	extensions via use of rva23s64 profile and adding zkr, smaia, smmpm,
	smnpm, smrnmi, smstateen, ssaia, ssstrict, svadu.

2026-01-09  Martin Jambor  <mjambor@suse.cz>

	* ipa-cp.h (class ipcp_bits_lattice): New members set_recipient_only,
	recipient_only_p and m_recipient_only.
	(class ipcp_vr_lattice): Likewise.
	(ipcp_vr_lattice::init): Initialize also m_recipient_only.
	* ipa-cp.cc (ipcp_bits_lattice::print): Adjust printting to also
	print the new flag.
	(ipcp_vr_lattice::print): Likewise.
	(ipcp_vr_lattice::set_recipient_only): New function.
	(ipcp_bits_lattice::set_recipient_only): Likewise.
	(set_all_contains_variable): New parameter MAKE_SIMPLE_RECIPIENTS, set
	bits and vr lattices to recibient only insted to bottom when it is
	true.
	(initialize_node_lattices): Pass true to the second parameter of
	set_all_contains_variable.
	(propagate_bits_across_jump_function): Treat recipient_only source
	lattices like bottom.
	(propagate_vr_across_jump_function): Likewise.
	(ipcp_store_vr_results): Skip non-local nodes.

2026-01-09  Martin Jambor  <mjambor@suse.cz>

	* ipa-cp.cc (good_cloning_opportunity_p): Dump a message when
	bailing out early too.
	(find_more_scalar_values_for_callers_subset): Rename to
	find_scalar_values_for_callers_subset, collect constants regardless of
	what is already in the vector.  Remove dumping.
	(find_more_contexts_for_caller_subset): Rename to
	find_contexts_for_caller_subset, collect contexts regardless of what
	is already in the vector.  Remove dumping.
	(find_aggregate_values_for_callers_subset): Rename to
	find_aggregate_values_for_callers_subset_gc, implement using new
	functions.
	(find_aggregate_values_for_callers_subset_1): New function.
	(find_aggregate_values_for_callers_subset): Likewise.
	(copy_known_vectors_add_val): Removed.
	(dump_reestimation_message): New function.
	(decide_about_value): Remove formal parameter avals, compute it
	independently, and use it to estimate local cloning effects.
	(struct cloning_opportunity_ranking): New type.
	(compare_cloning_opportunities): New function.
	(cloning_opportunity_ranking_evaluation): Likewise.
	(decide_whether_version_node): Pre-sort candidates for cloning before
	really evaluating them.  Calculate context independent values only
	when considering versioning for all contexts.
	(ipcp_val_agg_replacement_ok_p): Renamed to
	ipcp_val_replacement_ok_p, check also non-aggregate values.

2026-01-09  Alexandre Oliva  <oliva@gnu.org>

	PR target/119430
	* config/arm/arm.cc (arm_function_ok_for_sibcall): Disable
	sibcalls for long-calls that use all call-clobbered
	general-purpose registers, including the static chain.

2026-01-09  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	* config/s390/s390.cc (print_operand): Align %cN with %N.
	* config/s390/s390.md: Remove comment.

2026-01-09  Filip Kastl  <fkastl@suse.cz>

	PR c/123212
	* opts.cc: Enable -fbit-tests and -fjump-tables at -Og.

2026-01-09  Alfie Richards  <alfie.richards@arm.com>

	* config/aarch64/aarch64-builtins.cc
	(aarch64_expand_pragma_builtin): Add case for FMMLA.
	* config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins):
	Add new __ARM_FEATURE_X macros.
	* config/aarch64/aarch64-simd-pragma-builtins.def
	(vmmlaq_f16_mf8): New intrinsic.
	(vmmlaq_f32_mf8): Likewise.
	* config/aarch64/aarch64-simd.md
	(@aarch64_<insn><VDQ_HSF_FMMLA:mode>): New instruction.
	* config/aarch64/aarch64-sve-builtins-base.cc: Update mmla_impl
	for new instructions.
	* config/aarch64/aarch64-sve-builtins-shapes.cc
	(struct mmla_def): Add support for the new widening forms.
	* config/aarch64/aarch64-sve-builtins-sve2.def (svmmla) Add new
	intrinsics.
	* config/aarch64/aarch64-sve-builtins.cc (TYPES_cvt_narrow_s):
	Fix comment.
	* config/aarch64/aarch64-sve2.md
	(@aarch64_sve2_<sve_fp_op><SVE_FULL_HSF_FMMLA:mode><VNx16QI_ONLY:mode>): New instruction.
	(@aarch64_sve2_<sve_fp_op><VNx4SF_ONLY:mode><VNx8HF_ONLY:mode>): Likewise.
	* config/aarch64/aarch64.h (TARGET_F8F32MM): New macro.
	(TARGET_F8F16MM): Likewise.
	(TARGET_SVE_F16F32MM): Likewise.
	* config/aarch64/iterators.md (insn): Add fmmla entry.
	(VDQ_HSF_FMMLA): New iterator.
	(SVE_FULL_HSF_FMMLA): Likewise.

2026-01-09  Christophe Lyon  <christophe.lyon@linaro.org>

	* config/arm/arm-builtins.cc (arm_init_simd_builtin_types): Remove
	TARGET_HAVE_MVE condition.
	(class arm_target_switcher): New.
	(arm_init_mve_builtins): Remove calls to
	arm_init_simd_builtin_types and
	arm_init_simd_builtin_scalar_types.  Switch to MVE isa flags.
	(arm_init_neon_builtins): Remove calls to
	arm_init_simd_builtin_types and
	arm_init_simd_builtin_scalar_types.
	(arm_need_mve_mode_regs): New.
	(arm_need_neon_mode_regs): New.
	(arm_target_switcher::arm_target_switcher): New.
	(arm_target_switcher::~arm_target_switcher): New.
	(arm_init_builtins): Call arm_init_simd_builtin_scalar_types and
	arm_init_simd_builtin_types.  Always call arm_init_mve_builtins
	and arm_init_neon_builtins.

2026-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR target/123489
	* config/i386/i386-builtin.def (__builtin_ia32_cvttsd2sis64_round,
	__builtin_ia32_cvttsd2usis64_round, __builtin_ia32_cvttss2sis64_round,
	__builtin_ia32_cvttss2usis64_round): Require OPTION_MASK_ISA_64BIT.

2026-01-09  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR rtl-optimization/123491
	* ifcvt.cc (noce_try_cond_zero_arith): Reject non-scalar
	integer modes for the inner mode of the subreg.

2026-01-09  Shreya Munnangi  <smunnangi1@ventanamicro.com>
	    Jeff Law  <jeffrey.law@oss.qualcomm.com>

	PR target/121778
	* match.pd: Add pattern to recognize rotate with one or more
	bits flipped via xor.
	* config/sh/sh.md (*rotcl); New variant which handles the output
	we get after the match.pd change above.

2026-01-09  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	* config/riscv/andes-23-series.md: Clamp reservations to 7c.
	* config/riscv/andes-25-series.md: Likewise.
	* config/riscv/andes-45-series.md: Likewise.
	* config/riscv/generic.md: Likewise.
	* config/riscv/mips-p8700.md: Likewise.
	* config/riscv/sifive-7.md: Likewise.
	* config/riscv/spacemit-x60.md: Likewise.

2026-01-09  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	PR gcov-profile/123019
	* auto-profile.cc (auto_profile): Call execute_fixup_cfg.

2026-01-09  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	PR ipa/123383
	* cgraph.cc (cgraph_edge::get_next_speculative_id): Check
	lto_stmt_uid in get_next_speculative_id.

2026-01-08  Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/111817
	* stmt.cc (parse_input_constraint): For matching construct, goto
	before the loop without changing j instead of break.  Remove comment
	about that problem.

2026-01-08  Robin Dapp  <rdapp@ventanamicro.com>

	PR target/122846
	* config/riscv/riscv-opts.h (enum rvv_max_lmul_enum): Add
	RVV_CONV_DYNAMIC.
	(TARGET_MAX_LMUL): Ditto.
	* config/riscv/riscv-string.cc (use_vector_stringop_p): Use
	LMUL1 for RVV_CONV_DYNAMIC.
	(expand_rawmemchr): Ditto.
	(expand_strcmp): Ditto.
	(check_vectorise_memory_operation): Ditto.
	* config/riscv/riscv-vector-costs.cc (get_smallest_mode):
	New function.
	(compute_lmul_from_conversion_ratio): Calculate LMUL from
	largest/smallest type.
	(costs::has_unexpected_spills_p): Split.
	(costs::compute_live_ranges_and_lmul): Compute smallest type and
	call new function.
	(costs::cleanup_live_range_data): New function.
	(costs::compute_conversion_dynamic_lmul): New function.
	(costs::record_potential_unexpected_spills): Use new function.
	(costs::better_main_loop_than_p): Allow appropriate LMUL.
	* config/riscv/riscv-vector-costs.h: Declare.
	* config/riscv/riscv.opt: New option
	-mrvv-max-lmul=conv-dynamic.

2026-01-08  Qing Zhao  <qing.zhao@oracle.com>

	* doc/extend.texi: Update doc to support pointers inside structures.

2026-01-08  Olivier Hainque  <hainque@adacore.com>
	    Alexandre Oliva  <oliva@adacore.com>

	* config.gcc [x86_64-*-*]: Match *abi32 target, default to m32
	abi.  Accept 32 or m32 for --with-abi.

2026-01-08  Jonathan Wakely  <jwakely@redhat.com>

	* doc/invoke.texi (C++ Dialect Options): Fix typo in
	documentation of -flang-info-module-cmi.

2026-01-08  Aleksandar Rakic  <aleksandar.rakic@htecgroup.com>

	* Makefile.in: Add with_multi_buildlist for multilib
	configuration control. Pass an additional argument to
	genmultilib indicating whether --with-multi-buildlist is set
	(true or false). Use with_multi_buildlist to filter
	multilib directories in fixinc_list.
	* configure: Regenerate.
	* configure.ac: Restrict the installed fixedincludes multilibs.
	* configure.tgt: New file.
	* doc/install.texi: Add --with-multi-buildlist configure option
	for multilib filtering.
	* genmultilib: Document the new eleventh argument indicating
	whether --with-multi-buildlist configure option is set (true or
	false). Update argument parsing to include this flag before
	enable_multilib. Modify reuse rule validation:
	- Keep the original error for reuse of nonexistent multilibs
	when --with-multi-buildlist is not used.
	- Suppress the error only when the new configure option is
	active, allowing reuse rules to reference multilibs that are
	intentionally excluded from the build.

2026-01-08  Tomas Glozar  <tglozar@gmail.com>

	* config/ia64/ia64.cc (MAX_VECT_LEN): Set to 16 from 8.

2026-01-08  Robin Dapp  <rdapp.gcc@gmail.com>

	PR target/123268
	* gimple-match-exports.cc (convert_conditional_op): Check if
	orig_op->type and type of else value match.

2026-01-08  Richard Sandiford  <rdsandiford@googlemail.com>
	    Richard Biener  <rguenther@suse.de>

	PR tree-optimization/122793
	* tree-vect-slp.cc (vect_add_slp_permutation): Document the existing
	identity_offset parameter.  Handle identities that take from the
	second input rather than the first.

2026-01-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123310
	* tree-ssa-sccvn.cc (vn_reference_lookup_3): Properly
	test against unknown offset.

2026-01-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123298
	* tree-ssa-alias.h (get_continuation_for_phi): Take a gphi *,
	add is_backedge hook argument.
	(walk_non_aliased_vuses): Add is_backedge hook argument.
	* tree-ssa-alias.cc (maybe_skip_until): Adjust.
	(get_continuation_for_phi): Use new hook to classify an
	edge into the PHI as backedge.
	(walk_non_aliased_vuses): Adjust.
	* gimple-lower-bitint.cc (bitint_dom_walker::before_dom_children):
	Likewise.
	* ipa-prop.cc (determine_known_aggregate_parts): Likewise.
	* tree-ssa-scopedtables.cc (avail_exprs_stack::lookup_avail_expr):
	Likewise.
	* tree-ssa-pre.cc (translate_vuse_through_block): Likewise.
	* tree-ssa-sccvn.cc (vn_bb_to_rpo): Make BB to RPO order
	mapping accessible from new hook.
	(do_rpo_vn_1): Likewise.
	(vn_is_backedge): New hook to classify edge.
	(vn_reference_lookup_pieces): Adjust.
	(vn_reference_lookup): Likewise.

2026-01-08  Richard Biener  <rguenther@suse.de>

	* tree-vect-stmts.cc (vectorizable_shift): Improve missing
	optab or optab support messages.
	(vectorizable_operation): Likewise.

2026-01-08  Stefan Schulze Frielinghaus  <stefansf@gcc.gnu.org>

	* config/s390/s390.cc (s390_logical_operator_ok_p): Test for
	volatile memory.
	(s390_mem_constraint): Remove volatile condition.
	* config/s390/s390.md (*andc_split_<mode>): Test for volatile
	memory.

2026-01-08  Richard Biener  <rguenther@suse.de>

	PR middle-end/123107
	* fold-const.cc (fold_binary_loc): Guard (v >> CST) == { 0, 0.. }
	to v < { 0, 0.. } folding.

2026-01-08  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	PR tree-optimization/123382
	* tree-if-conv.cc: Reject VEC_PERM_EXPR for factoring
	if it is the mask and they are constant.

2026-01-08  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	* cse.cc (cse_find_path): Change follow_jumps to bool.

2026-01-07  Tomas Glozar  <tglozar@gmail.com>

	PR target/121535
	* config/ia64/ia64.cc (TARGET_ZERO_CALL_USED_REGS): Override
	function with target-specific one.
	(struct gcc_target): Move to end of file.
	(ia64_zero_call_used_regs): Add target-specific function.

2026-01-07  Xinhui Yang  <cyan@cyano.uk>

	* config.gcc: limit -lunwind usage by testing if the system
	libunwind is being used.

2026-01-07  Xi Ruoyao  <xry111@xry111.site>

	PR target/123320
	* config/loongarch/loongarch.md (<optab><mode>3): Only expand
	using psuedos when can_create_pseudo_p ().
	(addsi3): Likewise.

2026-01-07  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/123300
	* gimple-range-gori.cc (gori_map::exports_and_deps): New.
	* gimple-range-gori.h (exports_and_deps): New prototype.
	(FOR_EACH_GORI_EXPORT_AND_DEP_NAME): New macro.
	* tree-vrp.cc (remove_unreachable:remove_unreachable): Initialize
	m_tmp bitmap.
	(remove_unreachable:~remove_unreachable): Dispose of m_tmp bitmap.
	(remove_unreachable:fully_replaceable): Move from static function
	and check reachability of exports and dependencies.

2026-01-07  Andrew MacLeod  <amacleod@redhat.com>

	PR tree-optimization/123319
	* value-range.cc (irange::intersect): If there is a bitmask, snap
	subranges after creating them.

2026-01-07  Daniel Barboza  <daniel.barboza@oss.qualcomm.com>

	PR tree-optimization/102486
	* match.pd (`popcount (X & -X) -> -X != 0`): New pattern.

2026-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/119291
	PR rtl-optimization/121773
	* combine.cc (try_combine): Check that SET_DEST (setN) is neither
	modified_between_p nor reg_used_between_p instead of just not
	reg_used_between_p or pc_rtx.

2026-01-07  Richard Earnshaw  <rearnsha@arm.com>

	PR target/123390
	* config/arm/arm.cc (arm_gen_constant): Fix types of HWI literals.
	(arm_const_double_prefer_rsbs_rsc): Likewise.

2026-01-07  Alfie Richards  <alfie.richards@arm.com>

	* config/aarch64/aarch64.cc (aarch64_parse_fmv_features): Add parsing
	for priority arguments.
	(aarch64_process_target_version_attr): Update call to
	aarch64_parse_fmv_features.
	(get_feature_mask_for_version): Update call to
	aarch64_parse_fmv_features.
	(aarch64_compare_version_priority): Add logic to order by priority if present.
	(aarch64_functions_b_resolvable_from_a): Update call to
	aarch64_parse_fmv_features.
	(aarch64_mangle_decl_assembler_name): Update call to
	aarch64_parse_fmv_features.
	(dispatch_function_versions): Add logic to sort by priority.
	(aarch64_same_function_versions): Add diagnostic if invalid use of
	priority syntax.
	(aarch64_merge_decl_attributes): Add logic to make suer priority
	arguments are preserved.
	(aarch64_check_target_clone_version): Update call to
	aarch64_parse_fmv_features.

2026-01-07  Alfie Richards  <alfie.richards@arm.com>

	* target.def (TARGET_OPTION_SAME_FUNCTION_VERSIONS): Update
	documentation.
	* tree.cc (disjoint_version_decls): Change for new NULL parameter
	to same_function_versions.
	(diagnose_versioned_decls): Update to pass diagnostic location to
	same_function_versions.
	* doc/tm.texi: Regenerate.
	* config/aarch64/aarch64.cc (aarch64_same_function_versions):
	Update hook impl for new arguments.
	* config/riscv/riscv.cc (riscv_same_function_versions): Update
	hook impl for new arguments.
	* config/loongarch/loongarch.cc
	(loongarch_same_function_versions): Likewise
	* hooks.cc (hook_stringslice_stringslice_unreachable): Changed
	to...
	(hook_stringslice_consttree_stringslice_consttree_unreachable):
	...this and add extra arguments.
	* hooks.h (hook_stringslice_stringslice_unreachable): Changed
	to...
	(hook_stringslice_consttree_stringslice_consttree_unreachable):
	and add extra arguments.

2026-01-07  Martin Jambor  <mjambor@suse.cz>

	* params.opt (param_ipa_cp_sweeps): New.
	* doc/invoke.texi (ipa-cp-sweeps): New.
	* ipa-cp.cc (max_number_sweeps): New.
	(get_max_overall_size): New parameter cur_sweep, use it and the total
	number of sweeps from the NODE to calculate the result too.
	(ipcp_propagate_stage): Get the maximum number of sweeps specified in
	the corresponding parameter of any possibly affected node.
	(good_cloning_opportunity_p): Add parameter cur_sweep, adjust the
	threshold according to it.
	(decide_about_value): New parameter cur_sweep, pass it to
	get_max_overall_size and to good_cloning_opportunity_p.
	(decide_whether_version_node): New parameter cur_sweep, pass it to
	decide_about_value and get_max_overall_size.  Make sure the node is
	not dead.
	(ipcp_decision_stage): Make multiple sweeps over the call-graph.

2026-01-07  Martin Jambor  <mjambor@suse.cz>

	* ipa-prop.h (ipa_node_params): Remove member do_clone_for_all_contexts.
	(ipa_node_params::ipa_node_params): Do not initialize
	do_clone_for_all_contexts.
	* ipa-cp.cc (gather_context_independent_values): Remove parameter
	calculate_aggs, calculate them always.
	(estimate_local_effects): Move the decision whether to clone for
	all context...
	(decide_whether_version_node): ...here.  Fix dumps.
	(decide_about_value): Adjust alignment in dumps.

2026-01-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123315
	* tree-vect-loop.cc (vect_analyze_loop_2): Reset
	LOOP_VINFO_USING_DECREMENTING_IV_P before retrying.

2026-01-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123221
	* tree-vect-loop.cc (vectorizable_reduction): When we did not
	find the non-conversion reduction operation, bail.

2026-01-07  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/123316
	* tree-vect-loop.cc (vectorizable_reduction): Detect missing
	PHI patterns for bools.

2026-01-07  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR debug/123259
	* toplev.cc (process_options): Guard CTF non-C warning by
	-Wcomplain-wrong-lang.
	* doc/invoke.texi (Warning Options, -Wno-complain-wrong-lang):
	Document effect on -gctf/-gsctf.

2026-01-07  Siddhesh Poyarekar  <siddhesh@gotplt.org>

	PR tree-optimization/123374
	* gimple-ssa-warn-access.cc (pass_waccess::set_pass_param): Add
	a second parameter.
	(pass_waccess::check_call): Skip access checks for waccess2.
	(pass_waccess::execute): Drop initialization of
	M_CHECK_DANGLING_P.
	* passes.def: Adjust.

2026-01-06  Sebastian Huber  <sebastian.huber@embedded-brains.de>

	* tree-profile.cc (tree_profiling): Do not use atomic operations
	if they are not available.  Try to use at least partial atomic
	updates as a fallback.

2026-01-06  Takayuki 'January June' Suwa  <jjsuwa_sys3175@yahoo.co.jp>

	* config/xtensa/xtensa.h (EPILOGUE_USES): New macro definition.
	* config/xtensa/xtensa.md (return):
	Remove '(use (reg:SI A0_REG))' from the template description, and
	reload_completed from the condition.
	(sibcall_epilogue): Remove emitting '(use (reg:SI A0_REG))'.

2026-01-06  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	* tree-if-conv.cc (ifcvt_can_predicate): Add check for
	normal builtins.

2026-01-06  Richard Ball  <Richard.Ball@arm.com>

	* config/aarch64/aarch64-builtins.cc
	(enum aarch64_builtins): New builtin flag.
	(aarch64_init_pcdphint_builtins): New builtin function.
	(aarch64_expand_pldir_builtin): Expander for new intrinsic.
	(aarch64_general_expand_builtin): Call new expander.
	* config/aarch64/aarch64.md
	(aarch64_pldir): New pattern for instrinsic.
	* config/aarch64/arm_acle.h
	(__attribute__): New call to builtin.
	(__pldir): Likewise.

2026-01-06  Richard Ball  <Richard.Ball@arm.com>

	* config/aarch64/aarch64-builtins.cc
	(enum aarch64_builtins): Add new flags.
	(aarch64_init_pcdphint_builtins): Create new Builtin functions.
	(aarch64_general_init_builtins): Call init for PCDPHINT.
	(aarch64_expand_stshh_builtin): Expander for new intrinsic.
	(aarch64_general_expand_builtin): Call new expander.
	* config/aarch64/aarch64-c.cc
	(aarch64_update_cpp_builtins): New feature.
	* config/aarch64/aarch64.h (TARGET_PCDPHINT): Likewise.
	* config/aarch64/arm_acle.h
	(__atomic_store_with_stshh): Generic to call builtins.
	* config/aarch64/atomics.md
	(@aarch64_atomic_store_stshh<mode>): New pattern for intrinsic.
	* config/aarch64/iterators.md: New UNSPEC.

2026-01-06  Eric Botcazou  <ebotcazou@adacore.com>

	PR target/121192
	* expr.cc (store_constructor) <VECTOR_TYPE>: Disable the special
	trick for uniform boolean vectors with integer modes and single-bit
	mask entries on big-endian platforms.

2026-01-06  Eric Botcazou  <ebotcazou@adacore.com>

	* doc/install.texi (Prerequisites): Remove reference to Ada in
	conjunction with GCC 9.5 and adjust its GCC version requirement.

2026-01-06  Jakub Jelinek  <jakub@redhat.com>
	    Marco Falke  <falke.marco@gmail.com>

	PR tree-optimization/123351
	* tree-object-size.cc (object_sizes_set_temp): Separate calls to
	make_ssa_name to ensure deterministic execution order.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	* tree-vect-stmts.cc (vectorizable_call): Handle trapping math.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	* tree-if-conv.cc (ifcvt_can_predicate): Support gimple_call_builtin_p.
	(if_convertible_stmt_p, predicate_rhs_code,
	predicate_statements): Likewise.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	* match.pd: Add COND_FMA to COND_FMS rewrite rules.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	* doc/md.texi: Document them
	* internal-fn.cc (FOR_EACH_COND_FN_PAIR, internal_fn_else_index): Add
	SQRT, CEIL, FLOOR, ROUND and RINT.
	* internal-fn.def (IFN_COND_SQRT, IFN_COND_CEIL, IFN_COND_FLOOR,
	IFN_COND_ROUND, IFN_COND_RINT, IFN_COND_LEN_SQRT, IFN_COND_LEN_CEIL,
	IFN_COND_LEN_FLOOR, IFN_COND_LEN_ROUND, IFN_COND_LEN_RINT): New.
	* optabs.def (cond_rint_optab, cond_sqrt_optab, cond_round_optab,
	cond_ceil_optab, cond_floor_optab, cond_len_rint_optab,
	cond_len_sqrt_optab, cond_len_round_optab, cond_len_ceil_optab,
	cond_len_floor_optab): New.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR tree-optimization/122103
	* gimple.cc (gimple_could_trap_p_1): Handle __builtin_ calls.

2026-01-05  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	* config/riscv/riscv-string.cc (expand_block_move): Restore using
	inlined memcpy/memmove for unknown counts if the param hasn't been
	specified.
	(expand_vec_setmem): Similarly for memset.

2026-01-05  Pan Li  <pan2.li@intel.com>

	PR target/123317
	* config/riscv/autovec-opt.md: Take zero_extend for
	both the vwaddu and vwsubu wx pattern.

2026-01-05  Alice Carlotti  <alice.carlotti@arm.com>

	* config/aarch64/aarch64-sme.md
	(aarch64_sme_write_zt): Add TARGET_STREAMING requirement.
	(aarch64_sme_lut_zt): Ditto.

2026-01-05  Alice Carlotti  <alice.carlotti@arm.com>

	* doc/invoke.texi: Fix incorrect function name.

2026-01-05  Pan Li  <pan2.li@intel.com>

	* tree-vect-slp.cc (vec_slp_has_scalar_use): Adjust the
	depth_limit from 2 to 3.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR target/121290
	* config/aarch64/aarch64.cc (aarch64_possible_by_lane_insn_p): New.
	(aarch64_vector_costs): Add m_num_dup_stmts and m_num_total_stmts.
	(aarch64_vector_costs::add_stmt_cost): Use them.
	(adjust_body_cost): Likewise.

2026-01-05  Tamar Christina  <tamar.christina@arm.com>

	PR target/123017
	* config/aarch64/aarch64-json-schema.h: Add br_mispredict_factor.
	* config/aarch64/aarch64-json-tunings-parser-generated.inc
	(parse_branch_costs): Add br_mispredict_factor.
	* config/aarch64/aarch64-json-tunings-printer-generated.inc
	(serialize_branch_costs): Add br_mispredict_factor.
	* config/aarch64/aarch64-protos.h (struct cpu_branch_cost): Add
	br_mispredict_factor.
	* config/aarch64/aarch64.cc (aarch64_max_noce_ifcvt_seq_cost,
	aarch64_noce_conversion_profitable_p,
	TARGET_MAX_NOCE_IFCVT_SEQ_COST,
	TARGET_NOCE_CONVERSION_PROFITABLE_P): New.
	* config/aarch64/tuning_models/generic.h (generic_branch_cost): Add
	br_mispredict_factor.
	* config/aarch64/tuning_models/generic_armv8_a.h: Remove
	generic_armv8_a_branch_cost and use generic_branch_cost.

2026-01-04  Andrew Pinski  <andrew.pinski@oss.qualcomm.com>

	* configure: Regenerate.

2026-01-04  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	* config/riscv/riscv.cc (riscv_conditional_register_usage): Revert
	patch that made VXRM a global register.

2026-01-04  Keith Packard  <keithp@keithp.com>

	* config.gcc: Add clause for picolibc.
	* config/picolibc-spec.h: New file.
	* config/picolibc.opt: Likewise.
	* config/picolibc.opt.urls: Likewise.
	* configure.ac: Add support for --with-picolibc.
	* configure: Rebuilt.
	* doc/invoke.texi: Document picolibc options.
	* doc/tm.texi.in (LIBC_CPP_SPEC): Document.
	(LIBC_LINK_SPEC): Similarly.
	* doc/tm.texi: Rebuilt.
	* gcc.cc (LIBC_CPP_SPEC): Provide default definition.
	(LIBC_LINK_SPEC): Likewise.
	(cpp_spec): Include LIBC_CPP_SPEC.
	(link_spec): Similarly for LIBC_LINK_SPEC.

2026-01-04  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	* doc/contrib.texi: Add Kazumoto & Oleg.

2026-01-04  Richard Braun  <rbraun@sceen.net>

	* config/c6x/c6x-sched.md.in (mpydp_m_N__CROSS_,
	mpyspdp_m_N__CROSS_, mpysp2dp_m_N__CROSS_): Update reservations.
	* config/c6x/c6x-sched.md: Regenerated.
	* config/c6x/c6x.md (m1dp, m1spdp, m2dp, m2spdp): New CPU units.

2026-01-04  Kalvis Duckmanton  <kalvisd@gmail.com>

	* config/host-netbsd.cc (netbsd_gt_pch_use_address): Support PCH
	loading at addresses other than its preferred address.
	* config/host-openbsd.cc (openbsd_gt_pch_use_address): Likewise.

2026-01-04  Daniel Barboza  <daniel.barboza@oss.qualcomm.com>

	PR tree-optimization/122608
	* match.pd (`(c ? a : b) op d -> c ? (a op d) : (b op d)`): New
	pattern.
	(`d op (c ? a : b) -> c ? (d op a) : (d op b)`): Likewise

2026-01-04  Jeff Law  <jeffrey.law@oss.qualcomm.com>

	PR target/123010
	* simplify-rtx.cc (simplify_binary_operation_1, case ASHIFT): Simplify
	case where a left shift of the sign extracted field can be turned into
	a sign extension of a left shift.

2026-01-03  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/123372
	* tree-ssa-math-opts.cc
	(build_saturation_binary_arith_call_and_replace): Pass type of op_0
	rather than type of lhs as second argument to
	direct_internal_fn_supported_p.

2026-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/aarch64/aarch64-sve-builtins-shapes.cc
	(INCLUDE_ALGORITHM): Define.

2026-01-01  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	* cgraph.cc (cgraph_edge::get_next_speculative_id): New.
	* cgraph.h (cgraph_edge::get_next_speculative_id): New.
	* ipa-devirt.cc (ipa_devirt): Use get_next_speculative_id
	in make_speculative.

2026-01-01  Jakub Jelinek  <jakub@redhat.com>

	* gcc.cc (process_command): Update copyright notice dates.
	* gcov-dump.cc (print_version): Ditto.
	* gcov.cc (print_version): Ditto.
	* gcov-tool.cc (print_version): Ditto.
	* gengtype.cc (create_file): Ditto.
	* doc/cpp.texi: Bump @copying's copyright year.
	* doc/cppinternals.texi: Ditto.
	* doc/gcc.texi: Ditto.
	* doc/gccint.texi: Ditto.
	* doc/gcov.texi: Ditto.
	* doc/install.texi: Ditto.
	* doc/invoke.texi: Ditto.


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