path: root/gcc/ChangeLog

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/or1k.h (ASM_PREFERRED_EH_DATA_FORMAT): New macro.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/linux.h (TARGET_ASM_FILE_END): Define macro.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/or1k.h (TARGET_CPU_CPP_BUILTINS): Add builtin
	  define for __or1k_hard_float__.

2021-01-13  Stafford Horne  <shorne@gmail.com>

	* config/or1k/or1k.h (NO_PROFILE_COUNTERS): Define as 1.
	(PROFILE_HOOK): Define to call _mcount.
	(FUNCTION_PROFILER): Change from abort to no-op.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96691
	* match.pd ((~X | C) ^ D -> (X | C) ^ (~D ^ C),
	(~X & C) ^ D -> (X & C) ^ (D ^ C)): New simplifications if
	(~D ^ C) or (D ^ C) can be simplified.

2021-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92645
	* match.pd (BIT_FIELD_REF to conversion): Delay canonicalization
	until after vector lowering.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (fnma<mode>4): Extend from SVE_FULL_I
	to SVE_I.
	(@aarch64_pred_fnma<mode>, cond_fnma<mode>, *cond_fnma<mode>_2)
	(*cond_fnma<mode>_4, *cond_fnma<mode>_any): Likewise.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (fma<mode>4): Extend from SVE_FULL_I
	to SVE_I.
	(@aarch64_pred_fma<mode>, cond_fma<mode>, *cond_fma<mode>_2)
	(*cond_fma<mode>_4, *cond_fma<mode>_any): Likewise.

2021-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/92645
	* tree-vect-slp.c (vect_build_slp_tree_1): Relax supported
	BIT_FIELD_REF argument.
	(vect_build_slp_tree_2): Record the desired vector type
	on the external vector def.
	(vectorizable_slp_permutation): Handle required punning
	of existing vector defs.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* rtl-ssa/accesses.h (def_lookup): Fix order of comparison results.

2021-01-13  Richard Sandiford  <richard.sandiford@arm.com>

	* config/sh/sh.md (movsf_ie): Remove operands[2] test.

2021-01-13  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* config.gcc [$target == *-*-gnu*]: Enable
	'default_gnu_indirect_function'.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/95905
	* optabs.c (expand_vec_perm_const): Don't force v0 and v1 into
	registers before calling targetm.vectorize.vec_perm_const, only after
	that.
	* config/i386/i386-expand.c (ix86_vectorize_vec_perm_const): Handle
	two argument permutation when one operand is zero vector and only
	after that force operands into registers.
	* config/i386/sse.md (*avx2_zero_extendv16qiv16hi2_1): New
	define_insn_and_split pattern.
	(*avx512bw_zero_extendv32qiv32hi2_1): Likewise.
	(*avx512f_zero_extendv16hiv16si2_1): Likewise.
	(*avx2_zero_extendv8hiv8si2_1): Likewise.
	(*avx512f_zero_extendv8siv8di2_1): Likewise.
	(*avx2_zero_extendv4siv4di2_1): Likewise.
	* config/mips/mips.c (mips_vectorize_vec_perm_const): Force operands
	into registers.
	* config/arm/arm.c (arm_vectorize_vec_perm_const): Likewise.
	* config/sparc/sparc.c (sparc_vectorize_vec_perm_const): Likewise.
	* config/ia64/ia64.c (ia64_vectorize_vec_perm_const): Likewise.
	* config/aarch64/aarch64.c (aarch64_vectorize_vec_perm_const): Likewise.
	* config/rs6000/rs6000.c (rs6000_vectorize_vec_perm_const): Likewise.
	* config/gcn/gcn.c (gcn_vectorize_vec_perm_const): Likewise.  Use std::swap.

2021-01-13  Martin Liska  <mliska@suse.cz>

	PR tree-optimization/98455
	* gimple-if-to-switch.cc (condition_info::record_phi_mapping):
	Record also virtual PHIs.
	(pass_if_to_switch::execute): Return TODO_cleanup_cfg only
	conditionally.

2021-01-13  Jonathan Wakely  <jwakely@redhat.com>

	* doc/invoke.texi (C++ Modules): Fix typos.

2021-01-13  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98640
	* tree-ssa-sccvn.c (visit_nary_op): Do not try to
	handle plus or minus from a truncated operand to be
	sign-extended.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/96938
	* config/i386/i386.md (*btr<mode>_1, *btr<mode>_2): New
	define_insn_and_split patterns.
	(splitter after *btr<mode>_2): New splitter.

2021-01-13  Martin Liska  <mliska@suse.cz>

	PR ipa/98652
	* cgraphunit.c (analyze_functions): Remove dead code.

2021-01-13  Qian Jianhua  <qianjh@cn.fujitsu.com>

	* config/aarch64/aarch64-cost-tables.h (a64fx_extra_costs): New.
	* config/aarch64/aarch64.c (a64fx_addrcost_table): New.
	(a64fx_regmove_cost, a64fx_vector_cost): New.
	(a64fx_tunings): Use the new added cost tables.

2021-01-13  Jakub Jelinek  <jakub@redhat.com>

	PR target/95905
	* config/i386/predicates.md (pmovzx_parallel): New predicate.
	* config/i386/sse.md (*sse4_1_zero_extendv8qiv8hi2_3): New
	define_insn_and_split pattern.
	(*sse4_1_zero_extendv4hiv4si2_3): Likewise.
	(*sse4_1_zero_extendv2siv2di2_3): Likewise.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.c (gcn_conditional_register_usage): Remove dead code
	to fix v0 register.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn.c (gcn_md_reorg): Fix case where EXEC reg is live
	on entry to a BB.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn-valu.md (recip<mode>2<exec>, recip<mode>2): Use unspec
	for reciprocal-approximation instructions.
	(div<mode>3): Use fused multiply-accumulate operations for reciprocal
	refinement and division result.
	* config/gcn/gcn.md (UNSPEC_RCP): New unspec constant.

2021-01-13  Julian Brown  <julian@codesourcery.com>

	* config/gcn/gcn-valu.md (subdf): Rename to...
	(subdf3): This.

2021-01-12  Martin Liska  <mliska@suse.cz>

	* gcov.c (source_info::debug): Fix printf format for 32-bit hosts.

2021-01-12  Andrea Corallo  <andrea.corallo@arm.com>

	* function-abi.h: Fix typo.

2021-01-12  Christophe Lyon  <christophe.lyon@linaro.org>

	PR target/97875
	PR target/97875
	* config/arm/arm.h (ARM_HAVE_NEON_V8QI_LDST): New macro.
	(ARM_HAVE_NEON_V16QI_LDST, ARM_HAVE_NEON_V4HI_LDST): Likewise.
	(ARM_HAVE_NEON_V8HI_LDST, ARM_HAVE_NEON_V2SI_LDST): Likewise.
	(ARM_HAVE_NEON_V4SI_LDST, ARM_HAVE_NEON_V4HF_LDST): Likewise.
	(ARM_HAVE_NEON_V8HF_LDST, ARM_HAVE_NEON_V4BF_LDST): Likewise.
	(ARM_HAVE_NEON_V8BF_LDST, ARM_HAVE_NEON_V2SF_LDST): Likewise.
	(ARM_HAVE_NEON_V4SF_LDST, ARM_HAVE_NEON_DI_LDST): Likewise.
	(ARM_HAVE_NEON_V2DI_LDST): Likewise.
	(ARM_HAVE_V8QI_LDST, ARM_HAVE_V16QI_LDST): Likewise.
	(ARM_HAVE_V4HI_LDST, ARM_HAVE_V8HI_LDST): Likewise.
	(ARM_HAVE_V2SI_LDST, ARM_HAVE_V4SI_LDST, ARM_HAVE_V4HF_LDST): Likewise.
	(ARM_HAVE_V8HF_LDST, ARM_HAVE_V4BF_LDST, ARM_HAVE_V8BF_LDST): Likewise.
	(ARM_HAVE_V2SF_LDST, ARM_HAVE_V4SF_LDST, ARM_HAVE_DI_LDST): Likewise.
	(ARM_HAVE_V2DI_LDST): Likewise.
	* config/arm/mve.md (*movmisalign<mode>_mve_store): New pattern.
	(*movmisalign<mode>_mve_load): New pattern.
	* config/arm/neon.md (movmisalign<mode>): Move to ...
	* config/arm/vec-common.md: ... here.

2021-01-12  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR target/97969
	* lra-eliminations.c (eliminate_regs_in_insn): Add transformation
	of pattern 'plus (plus (hard reg, const), pseudo)'.

2021-01-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98550
	* tree-vect-slp.c (vect_record_max_nunits): Check whether
	the group size is a multiple of the vector element count.
	(vect_build_slp_tree_1): When we need to fail because
	the vector type choosen causes unrolling do so lazily
	without affecting matches only at the end to guide group splitting.

2021-01-12  Martin Liska  <mliska@suse.cz>

	PR c++/97284
	* optc-save-gen.awk: Compare also n_target_save vars with
	strcmp.

2021-01-12  Martin Liska  <mliska@suse.cz>

	* gcov.c (source_info::debug): New.
	(print_usage): Add --debug (-D) option.
	(process_args): Likewise.
	(generate_results): Call src->debug after
	accumulate_line_counts.
	(read_graph_file): Properly assign id for EXIT_BLOCK.
	* profile.c (branch_prob): Dump function body before it is
	instrumented.

2021-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98629
	* tree-ssa-math-opts.c (arith_overflow_check_p): Don't update use_stmt
	unless returning non-zero.

2021-01-12  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95731
	* tree-ssa-reassoc.c (optimize_range_tests_cmp_bitwise): Also optimize
	x < 0 && y < 0 && z < 0 into (x | y | z) < 0 for signed x, y, z.
	(optimize_range_tests): Call optimize_range_tests_cmp_bitwise
	only after optimize_range_tests_var_bound.

2021-01-12  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: Ensure c/Make-lang.in comes first in @all_lang_makefrags@.
	* configure: Regenerated.

2021-01-12  liuhongt  <hongtao.liu@intel.com>

	PR target/98612
	* config/i386/i386-builtins.h (BUILTIN_DESC_SWAP_OPERANDS):
	Deleted.
	* config/i386/i386-expand.c (ix86_expand_sse_comi): Delete
	dead code.

2021-01-12  Alexandre Oliva  <oliva@adacore.com>

	* ssa-iterators.h (end_imm_use_stmt_traverse): Forward
	declare.
	(auto_end_imm_use_stmt_traverse): New struct.
	(FOR_EACH_IMM_USE_STMT): Use it.
	(BREAK_FROM_IMM_USE_STMT, RETURN_FROM_IMM_USE_STMT): Remove,
	along with uses...
	* gimple-ssa-strength-reduction.c: ... here, ...
	* graphite-scop-detection.c: ... here, ...
	* ipa-modref.c, ipa-pure-const.c, ipa-sra.c: ... here, ...
	* tree-predcom.c, tree-ssa-ccp.c: ... here, ...
	* tree-ssa-dce.c, tree-ssa-dse.c: ... here, ...
	* tree-ssa-loop-ivopts.c, tree-ssa-math-opts.c: ... here, ...
	* tree-ssa-phiprop.c, tree-ssa.c: ... here, ...
	* tree-vect-slp.c: ... and here, ...
	* doc/tree-ssa.texi: ... and the example here.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (sdiv_pow2<mode>3): Extend from
	SVE_FULL_I to SVE_I.  Generate an UNSPEC_PRED_X.
	(*sdiv_pow2<mode>3): New pattern.
	(@cond_<sve_int_op><mode>): Extend from SVE_FULL_I to SVE_I.
	Wrap the ASRD in an UNSPEC_PRED_X.
	(*cond_<sve_int_op><mode>_2): Likewise.  Replace the UNSPEC_PRED_X
	predicate with a constant PTRUE, if it isn't already.
	(*cond_<sve_int_op><mode>_z): Replace with...
	(*cond_<sve_int_op><mode>_any): ...this new pattern.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (*cond_bic<mode>_2): Extend from
	SVE_FULL_I to SVE_I.
	(*cond_bic<mode>_any): Likewise.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<su>mul<mode>3_highpart)
	(@aarch64_pred_<MUL_HIGHPART:optab><mode>): Extend from SVE_FULL_I
	to SVE_I.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<su>abd<mode>_3): Extend from
	SVE_FULL_I to SVE_I.
	(*aarch64_cond_<su>abd<mode>_2): Likewise.
	(*aarch64_cond_<su>abd<mode>_any): Likewise.
	(@aarch64_pred_<su>abd<mode>): Likewise.  Use UNSPEC_PRED_X
	for the max and min but not for the minus.
	(*aarch64_cond_<su>abd<mode>_3): New pattern.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/iterators.md (SVE_24I): New iterator.
	* config/aarch64/aarch64-sve.md (*aarch64_adr<mode>_shift): Extend from
	SVE_FULL_SDI to SVE_24I.  Use containers rather than elements.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (@cond_<SVE_INT_BINARY:optab><mode>)
	(*cond_<SVE_INT_BINARY:optab><mode>_2): Extend from SVE_FULL_I
	to SVE_I.
	(*cond_<SVE_INT_BINARY:optab><mode>_3): Likewise.
	(*cond_<SVE_INT_BINARY:optab><mode>_any): Likewise.
	(*cond_<SVE_INT_BINARY:optab><mode>_2_const): Likewise.
	(*cond_<SVE_INT_BINARY:optab><mode>_any_const): Likewise.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<SVE_INT_BINARY_IMM:optab><mode>3)
	(@aarch64_pred_<SVE_INT_BINARY_IMM:optab><mode>)
	(*post_ra_<SVE_INT_BINARY_IMM:optab><mode>3): Extend from SVE_FULL_I
	to SVE_I.

2021-01-11  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (<ASHIFT:optab><mode>3)
	(v<ASHIFT:optab><mode>3, @aarch64_pred_<optab><mode>)
	(*post_ra_v<ASHIFT:optab><mode>3): Extend from SVE_FULL_I to SVE_I.

2021-01-11  Martin Liska  <mliska@suse.cz>

	PR jit/98615
	* symtab-clones.h (clone_info::release): Release
	symtab::m_clones with ggc_delete as it's a GGC memory.

2021-01-11  Matthias Klose  <doko@ubuntu.com>

	* Makefile.in (LINK_PROGRESS): Show the link target.

2021-01-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/91403
	* tree-vect-data-refs.c (vect_analyze_group_access_1): Cap
	single-element interleaving group size at 4096 elements.

2021-01-11  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98526
	* tree-vect-loop.c (vect_model_reduction_cost): Remove costing
	of the actual reduction op for the regular case.
	(vectorizable_reduction): Cost the stmts
	vect_transform_reduction produces here.

2021-01-11  Andreas Krebbel  <krebbel@linux.ibm.com>

	* tree-ssa-forwprop.c (simplify_vector_constructor): For
	big-endian, use UNPACK[_FLOAT]_HI.

2021-01-11  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (class complex_pattern,
	class complex_add_pattern): Add parameters to matches.
	(complex_add_pattern::build): Free memory.
	(complex_add_pattern::matches): Move validation end of match.
	(complex_add_pattern::recognize): Likewise.

2021-01-11  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (linear_loads_p): Fix externals.

2021-01-11  Tamar Christina  <tamar.christina@arm.com>

	* tree-vect-slp-patterns.c (is_linear_load_p): Fix ambiguity.

2021-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95867
	* tree-ssa-math-opts.h: New header.
	* tree-ssa-math-opts.c: Include tree-ssa-math-opts.h.
	(powi_as_mults): No longer static.  Use build_one_cst instead of
	build_real.  Formatting fix.
	* tree-ssa-reassoc.c: Include tree-ssa-math-opts.h.
	(attempt_builtin_powi): Handle multiplication reassociation without
	powi_fndecl using powi_as_mults.
	(reassociate_bb): For integral types don't require
	-funsafe-math-optimizations to call attempt_builtin_powi.

2021-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95852
	* tree-ssa-math-opts.c (maybe_optimize_guarding_check): Change
	mul_stmts parameter type to vec<gimple *> &.  Before cond_stmt
	allow in the bb any of the stmts in that vector, div_stmt and
	up to 3 cast stmts.
	(arith_cast_equal_p): New function.
	(arith_overflow_check_p): Add cast_stmt argument, handle signed
	multiply overflow checks.
	(match_arith_overflow): Adjust caller.  Handle signed multiply
	overflow checks.

2021-01-11  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95852
	* tree-ssa-math-opts.c (maybe_optimize_guarding_check): New function.
	(uaddsub_overflow_check_p): Renamed to ...
	(arith_overflow_check_p): ... this.  Handle also multiplication
	with overflow check.
	(match_uaddsub_overflow): Renamed to ...
	(match_arith_overflow): ... this.  Add cfg_changed argument.  Handle
	also multiplication with overflow check.  Adjust function comment.
	(math_opts_dom_walker::after_dom_children): Adjust callers.  Call
	match_arith_overflow also for MULT_EXPR.

2021-01-11  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/arm_neon.h (vmovl_s8): Reimplement using
	__builtin_convertvector.
	(vmovl_s16): Likewise.
	(vmovl_s32): Likewise.
	(vmovl_u8): Likewise.
	(vmovl_u16): Likewise.
	(vmovl_u32): Likewise.
	(vmovn_s16): Likewise.
	(vmovn_s32): Likewise.
	(vmovn_s64): Likewise.
	(vmovn_u16): Likewise.
	(vmovn_u32): Likewise.
	(vmovn_u64): Likewise.

2021-01-11  Martin Liska  <mliska@suse.cz>

	* gimple-if-to-switch.cc (struct condition_info): Use auto_var.
	(if_chain::is_beneficial): Delete clusters
	(find_conditions): Make second argument of conditions_in_bbs a
	pointer so that we control over it's lifetime.
	(pass_if_to_switch::execute): Delete them.

2021-01-11  Kewen Lin  <linkw@linux.ibm.com>

	* ira.c (move_unallocated_pseudos): Check other_reg and skip if
	it isn't set.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* config/vax/vax.md (cc): Remove mode attribute.
	(subst_<cc>, subst_f<cc>): Rename to...
	(subst_<mode>, subst_f<VAXccnz:mode>): ... these respectively.
	(*cbranch<VAXint:mode>4_<VAXcc:mode>): Update for `cc' removal.
	(*cbranch<VAXfp:mode>4_<VAXccnz:mode>): Likewise.
	(*branch_<mode>, *branch_<mode>_reversed): Likewise.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* config/vax/vax.md (subst_f<cc>): Add mode to operands and
	`const_double_zero'.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* config/pdp11/pdp11.md (PDPfp): New mode iterator.
	(fcc_cc, fcc_ccnz): Use it.  Add mode to `const_double_zero' and
	operands.

2021-01-09  Maciej W. Rozycki  <macro@linux-mips.org>

	* genemit.c (gen_exp) <CONST_DOUBLE>: Handle `const_double_zero'
	rtx.
	* read-rtl.c (rtx_reader::read_rtx_code): Handle machine mode
	with `const_double_zero'.
	* doc/rtl.texi (Constant Expression Types): Document it.

2021-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR c++/98556
	* tree-cfg.c (verify_gimple_assign_binary): Allow lhs of
	POINTER_DIFF_EXPR to be any integral type.

2021-01-09  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/98603
	* function.c (instantiate_virtual_regs_in_insn): For asm goto
	with impossible constraints, drop all SETs, CLOBBERs, drop PARALLEL
	if any, set ASM_OPERANDS mode to VOIDmode and change
	ASM_OPERANDS_OUTPUT_CONSTRAINT and ASM_OPERANDS_OUTPUT_IDX.

2021-01-09  Alexandre Oliva  <oliva@gnu.org>

	PR debug/97714
	* final.c (notice_source_line): Narrow down the condition to
	skip a line-0 marker.

2021-01-08  Sergei Trofimovich  <siarheit@google.com>

	* ipa-modref.c (merge_call_side_effects): Fix
	linebreak split by reordering two print calls.

2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/vector.md (*tf_to_fprx2_0): Rename from
	"*mov_tf_to_fprx2_0" for consistency, fix constraint.
	(*tf_to_fprx2_1): Rename from "*mov_tf_to_fprx2_1" for
	consistency, fix constraint.

2021-01-08  Ilya Leoshkevich  <iii@linux.ibm.com>

	* config/s390/s390-c.c (s390_def_or_undef_macro): Accept
	callables instead of mask values.
	(struct target_flag_set_p): New predicate.
	(s390_cpu_cpp_builtins_internal): Define or undefine
	__LONG_DOUBLE_VX__ macro.

2021-01-08  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98482
	* config/i386/i386.c (x86_function_profiler): Use R10 and R11
	to call mcount in large model with PIC for NO_PROFILE_COUNTERS
	targets.

2021-01-08  Richard Biener  <rguenther@suse.de>

	* tree-ssa-sccvn.c (pass_fre::execute): Reset the SCEV hash table.

2021-01-08  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (scalar_stmts_to_slp_tree_map_t): Fix.
	(vect_build_slp_tree): On cache hit release the matched
	scalar stmts vector.
	* tree-vect-stmts.c (vectorizable_store): Properly free
	vec_oprnds before possibly gathering them again.

2021-01-08  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98544
	* tree-vect-slp.c (vect_optimize_slp): Always materialize
	permutes at a permute node.

2021-01-08  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98482
	* config/i386/i386.c (x86_function_profiler): Use R10 to call
	mcount in large model.  Sorry for large model with PIC.

2021-01-08  Jakub Jelinek  <jakub@redhat.com>

	PR target/98585
	* config/i386/i386.opt (ix86_cmodel, ix86_incoming_stack_boundary_arg,
	ix86_pmode, ix86_preferred_stack_boundary_arg, ix86_regparm,
	ix86_veclibabi_type): Remove x_ prefix, use TargetVariable instead of
	TargetSave and initialize for variables with enum types.
	(mfentry, mstack-protector-guard-reg=, mstack-protector-guard-offset=,
	mstack-protector-guard-symbol=): Add Save.
	* config/i386/i386-options.c (ix86_function_specific_save,
	ix86_function_specific_restore): Don't save or restore x_ix86_cmodel,
	x_ix86_incoming_stack_boundary_arg, x_ix86_pmode,
	x_ix86_preferred_stack_boundary_arg, x_ix86_regparm,
	x_ix86_veclibabi_type.

2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (*cnot<mode>): Extend from
	SVE_FULL_I to SVE_I.
	(*cond_cnot<mode>_2, *cond_cnot<mode>_any): Likewise.

2021-01-08  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (*cond_uxt<mode>_2): Extend from
	SVE_FULL_I to SVE_I.
	(*cond_uxt<mode>_any): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/iterators.md (Vwhalf): New iterator.
	* config/aarch64/aarch64-simd.md (aarch64_<sur>adalp<mode>_3):
	Rename to...
	(aarch64_<sur>adalp<mode>): ... This.  Make more
	builtin-friendly.
	(<sur>sadv16qi): Adjust callsite of the above.
	* config/aarch64/aarch64-simd-builtins.def (sadalp, uadalp): New
	builtins.
	* config/aarch64/arm_neon.h (vpadal_s8): Reimplement using
	builtins.
	(vpadal_s16): Likewise.
	(vpadal_u8): Likewise.
	(vpadal_u16): Likewise.
	(vpadalq_s8): Likewise.
	(vpadalq_s16): Likewise.
	(vpadalq_s32): Likewise.
	(vpadalq_u8): Likewise.
	(vpadalq_u16): Likewise.
	(vpadalq_u32): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aarch64_<su>abd<mode>_3):
	Rename to...
	(aarch64_<su>abd<mode>): ... This.
	(<sur>sadv16qi): Adjust callsite of the above.
	* config/aarch64/aarch64-simd-builtins.def (sabd, uabd): Define
	builtins.
	* config/aarch64/arm_neon.h (vabd_s8): Reimplement using
	builtin.
	(vabd_s16): Likewise.
	(vabd_s32): Likewise.
	(vabd_u8): Likewise.
	(vabd_u16): Likewise.
	(vabd_u32): Likewise.
	(vabdq_s8): Likewise.
	(vabdq_s16): Likewise.
	(vabdq_s32): Likewise.
	(vabdq_u8): Likewise.
	(vabdq_u16): Likewise.
	(vabdq_u32): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd-builtins.def (saba, uaba): Define
	builtins.
	* config/aarch64/arm_neon.h (vaba_s8): Implement using builtin.
	(vaba_s16): Likewise.
	(vaba_s32): Likewise.
	(vaba_u8): Likewise.
	(vaba_u16): Likewise.
	(vaba_u32): Likewise.
	(vabaq_s8): Likewise.
	(vabaq_s16): Likewise.
	(vabaq_s32): Likewise.
	(vabaq_u8): Likewise.
	(vabaq_u16): Likewise.
	(vabaq_u32): Likewise.

2021-01-08  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

	* config/aarch64/aarch64-simd.md (aba<mode>_3): Rename to...
	(aarch64_<su>aba<mode>): ... This.  Handle uaba as well.
	Change RTL pattern to match.

2021-01-08  Kito Cheng  <kito.cheng@sifive.com>

	* common/config/riscv/riscv-common.c (riscv_current_subset_list): New.
	* config/riscv/riscv-c.c (riscv-subset.h): New.
	(INCLUDE_STRING): Define.
	(riscv_cpu_cpp_builtins): Add new style architecture extension
	test macros.
	* config/riscv/riscv-subset.h (riscv_subset_list::begin): New.
	(riscv_subset_list::end): New.
	(riscv_current_subset_list): New.

2021-01-08  Kito Cheng  <kito.cheng@sifive.com>

	* common/config/riscv/riscv-common.c (RISCV_DONT_CARE_VERSION):
	Move to riscv-subset.h.
	(struct riscv_subset_t): Ditto.
	(class riscv_subset_list): Ditto.
	* config/riscv/riscv-subset.h (RISCV_DONT_CARE_VERSION): Move
	from riscv-common.c.
	(struct riscv_subset_t): Ditto.
	(class riscv_subset_list): Ditto.
	* config/riscv/t-riscv ($(common_out_file)): Add file
	dependency.

2021-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR target/98567
	* config/i386/i386.md (*bmi_blsi_<mode>_cmp, *bmi_blsi_<mode>_ccno):
	New define_insn patterns.

2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64-sve.md (@cond_<SVE_INT_UNARY:optab><mode>)
	(*cond_<SVE_INT_UNARY:optab><mode>_2): Extend from SVE_FULL_I to SVE_I.
	(*cond_<SVE_INT_UNARY:optab><mode>_any): Likewise.

2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98560
	* internal-fn.def (IFN_VCONDU, IFN_VCONDEQ): Use type vec_cond.
	* internal-fn.c (vec_cond_mask_direct): Get the data mode from
	argument 1.
	(vec_cond_direct): Likewise argument 2.
	(vec_condu_direct, vec_condeq_direct): Delete.
	(expand_vect_cond_optab_fn): Rename to...
	(expand_vec_cond_optab_fn): ...this, replacing old macro.
	(expand_vec_condu_optab_fn, expand_vec_condeq_optab_fn): Delete.
	(expand_vect_cond_mask_optab_fn): Rename to...
	(expand_vec_cond_mask_optab_fn): ...this, replacing old macro.
	(direct_vec_cond_mask_optab_supported_p): Treat the optab as a
	convert optab.
	(direct_vec_cond_optab_supported_p): Likewise.
	(direct_vec_condu_optab_supported_p): Delete.
	(direct_vec_condeq_optab_supported_p): Delete.
	* gimple-isel.cc: Include internal-fn.h.
	(gimple_expand_vec_cond_expr): Check that IFN_VCONDEQ is supported
	before using it.

2021-01-07  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98560
	* gimple-isel.cc (gimple_expand_vec_cond_expr): If we fail to use
	IFN_VCOND{,U,EQ}, fall back on IFN_VCOND_MASK.

2021-01-07  Uroš Bizjak  <ubizjak@gmail.com>

	* config/i386/i386.md (insn): Merge from plusminus_insn, shift_insn,
	rotate_insn and optab code attributes.
	Update all uses to merged code attribute.
	* config/i386/sse.md: Update all uses to merged code attribute.
	* config/i386/mmx.md: Update all uses to merged code attribute.

2021-01-07  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98568
	* gimple-ssa-store-merging.c (bswap_view_convert): New function.
	(bswap_replace): Use it.

2021-01-06  Vladimir N. Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/97978
	* lra-int.h (lra_hard_reg_split_p): New external.
	* lra.c (lra_hard_reg_split_p): New global.
	(lra): Set up lra_hard_reg_split_p after splitting a hard reg.
	* lra-assigns.c (lra_assign): Don't check allocation correctness
	after hard reg splitting.

2021-01-06  Martin Sebor  <msebor@redhat.com>

	PR c++/98305
	* builtins.c (new_delete_mismatch_p): New overload.
	(new_delete_mismatch_p (tree, tree)): Call it.

2021-01-06  Alexandre Oliva  <oliva@adacore.com>

	* Makefile.in (T_GLIMITS_H): New.
	(stmp-int-hdrs): Depend on it, use it.
	* config/t-vxworks (T_GLIMITS_H): Override it.
	(vxw-glimits.h): New.

2021-01-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98513
	* value-range.cc (intersect_ranges): Compare the upper bounds
	for the expected relation.

2021-01-06  Gerald Pfeifer  <gerald@pfeifer.com>

	Revert:
	2020-12-28  Gerald Pfeifer  <gerald@pfeifer.com>

	* doc/standards.texi (HSAIL): Remove section.

2021-01-05  Samuel Thibault  <samuel.thibault@ens-lyon.org>

	* configure: Re-generate.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	* doc/invoke.texi (-std=c++20): Adjust for the publication of
	ISO 14882:2020 standard.
	* doc/standards.texi: Likewise.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/94802
	* expr.h (maybe_optimize_sub_cmp_0): Declare.
	* expr.c: Include tree-pretty-print.h and flags.h.
	(maybe_optimize_sub_cmp_0): New function.
	(do_store_flag): Use it.
	* cfgexpand.c (expand_gimple_cond): Likewise.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	* mux-utils.h (pointer_mux::m_ptr): Tweak description of contents.
	* rtlanal.c (simple_regno_set): Tweak description to clarify the
	RMW condition.

2021-01-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98516
	* tree-vect-slp.c (vect_optimize_slp): Permute the incoming
	lanes when materializing on a VEC_PERM node.
	(vectorizable_slp_permutation): Dump the permute properly.

2021-01-05  Richard Biener  <rguenther@suse.de>

	* tree-vect-slp.c (vect_slp_region): Move debug counter
	to cover individual subgraphs.

2021-01-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98428
	* tree-vect-slp.c (vect_build_slp_tree_1): Properly reject
	vector lane extracts for loop vectorization.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/98514
	* tree-ssa-reassoc.c (bb_rank): Change type from long * to
	int64_t *.
	(operand_rank): Change type from hash_map<tree, long> to
	hash_map<tree, int64_t>.
	(phi_rank): Change return type from long to int64_t.
	(loop_carried_phi): Change block_rank variable type from long to
	int64_t.
	(propagate_rank): Change return type, rank parameter type and
	op_rank variable type from long to int64_t.
	(find_operand_rank): Change return type from long to int64_t
	and change slot variable type from long * to int64_t *.
	(insert_operand_rank): Change rank parameter type from long to
	int64_t.
	(get_rank): Change return type and rank variable type from long to
	int64_t.  Use PRId64 instead of ld to print the rank.
	(init_reassoc): Change rank variable type from long to int64_t
	and adjust correspondingly bb_rank and operand_rank initialization.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96928
	* tree-ssa-phiopt.c (xor_replacement): New function.
	(tree_ssa_phiopt_worker): Call it.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96930
	* match.pd ((A / (1 << B)) -> (A >> B)): If A is extended
	from narrower value which has the same type as 1 << B, perform
	the right shift on the narrower value followed by extension.

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96239
	* gimple-ssa-store-merging.c (maybe_optimize_vector_constructor): New
	function.
	(get_status_for_store_merging): Don't return BB_INVALID for blocks
	with potential bswap optimizable CONSTRUCTORs.
	(pass_store_merging::execute): Optimize vector CONSTRUCTORs with bswap
	if possible.

2021-01-05  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98381
	* tree.c (vector_element_bits): Properly compute bool vector
	element size.
	* tree-vect-loop.c (vectorizable_live_operation): Properly
	compute the last lane bit offset.

2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98522
	* config/i386/sse.md (sse_cvtps2pi): Redefine as define_insn_and_split.
	Clear the top 64 bytes of the input XMM register.
	(sse_cvttps2pi): Ditto.

2021-01-05  Uroš Bizjak  <ubizjak@gmail.com>

	PR target/98521
	* config/i386/xopintrin.h (_mm256_cmov_si256): New.

2021-01-05  H.J. Lu  <hjl.tools@gmail.com>

	PR target/98495
	* config/i386/xmmintrin.h (_mm_extract_pi16): Cast to unsigned
	short first.

2021-01-05  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (maddsidi4_split): Use ACC_REG_FIRST.
	(umaddsidi4_split): Likewise.

2021-01-05  liuhongt  <hongtao.liu@intel.com>

	PR target/98461
	* config/i386/sse.md (*sse2_pmovskb_zexthisi): New
	define_insn_and_split for zero_extend of subreg HI of pmovskb
	result.
	(*sse2_pmovskb_zexthisi): Add new combine splitters for
	zero_extend of not of subreg HI of pmovskb result.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/97269
	* explow.c (convert_memory_address_addr_space_1): Handle UNSPECs
	nested in CONSTs.
	* config/aarch64/aarch64.c (aarch64_expand_mov_immediate): Use
	convert_memory_address to convert symbolic immediates to ptr_mode
	before forcing them to memory.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/97144
	* recog.c (constrain_operands): Initialize matching_operand
	for each alternative, rather than only doing it once.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR rtl-optimization/98403
	* rtl-ssa/changes.cc (function_info::finalize_new_accesses): Explain
	why we don't remove call clobbers.
	(function_info::apply_changes_to_insn): Don't attempt to add
	call clobbers here.

2021-01-05  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/98371
	* tree-vect-loop.c (vect_reanalyze_as_main_loop): New function.
	(vect_analyze_loop): If an epilogue loop appears to be cheaper
	than the main loop, re-analyze it as a main loop before adopting
	it as a main loop.

2021-01-05  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR c++/98316
	* configure.ac (NETLIBS): Determine using AX_LIB_SOCKET_NSL.
	* aclocal.m4, configure: Regenerate.
	* Makefile.in (NETLIBS): Define.
	(BACKEND): Remove $(CODYLIB).

2021-01-05  Jakub Jelinek  <jakub@redhat.com>

	PR rtl-optimization/98334
	* simplify-rtx.c (simplify_context::simplify_binary_operation_1):
	Optimize (X - 1) * Y + Y to X * Y or (X + 1) * Y - Y to X * Y.

2021-01-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* tree-inline.c (expand_call_inline): Restore input_location.
	Return result from recursive call.

2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>

	PR tree-optimization/95401
	* config/aarch64/aarch64-sve-builtins.cc
	(gimple_folder::load_store_cookie): Use bits rather than bytes
	for the alignment argument to IFN_MASK_LOAD and IFN_MASK_STORE.
	* gimple-fold.c (gimple_fold_mask_load_store_mem_ref): Likewise.
	* tree-vect-stmts.c (vectorizable_store): Likewise.
	(vectorizable_load): Likewise.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98308
	* tree-vect-stmts.c (vectorizable_load): Set invariant mask
	SLP vectype.

2021-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/95771
	* tree-ssa-loop-niter.c (number_of_iterations_popcount): Handle types
	with precision smaller than int's precision and types with precision
	twice as large as long long.  Formatting fixes.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98464
	* tree-ssa-sccvn.c (vn_valueize_for_srt): Rename from ...
	(vn_valueize_wrapper): ... this.  Temporarily adjust vn_context_bb.
	(process_bb): Adjust.

2021-01-04  Matthew Malcomson  <matthew.malcomson@arm.com>

	PR other/98437
	* doc/invoke.texi (-fsanitize=address): Fix wording describing
	clash with -fsanitize=hwaddress.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98282
	* tree-ssa-sccvn.c (vn_get_stmt_kind): Classify tcc_reference on
	invariants as VN_NARY.

2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>

	PR target/89057
	* config/aarch64/aarch64-simd.md (aarch64_combine<mode>): Accept
	aarch64_simd_reg_or_zero for operand 2.  Use the combinez patterns
	to handle zero operands.

2021-01-04  Richard Sandiford  <richard.sandiford@arm.com>

	* config/aarch64/aarch64.c (offset_6bit_signed_scaled_p): New function.
	(offset_6bit_unsigned_scaled_p): Fix typo in comment.
	(aarch64_sve_prefetch_operand_p): Accept MUL VLs in the range
	[-32, 31].

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98393
	* tree-vect-slp.c (vect_build_slp_tree): Properly zero matches
	when hitting the limit.

2021-01-04  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/98291
	* tree-vect-loop.c (vectorizable_reduction): Bypass
	associativity check for SLP reductions with VF 1.

2021-01-04  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/96782
	* match.pd (x == ~x -> false, x != ~x -> true): New simplifications.

2021-01-04  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* collect-utils.c (collect_execute): Check dumppfx.
	* collect2.c (maybe_run_lto_and_relink, do_link): Pass atsuffix
	to collect_execute.
	(do_link): Add new parameter atsuffix.
	(main): Handle -dumpdir option.  Skip one argument for
	-o, -isystem and -B options.
	* gcc.c (make_at_file): New helper function.
	(close_at_file): Use it.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (MIN_LD64_NO_COAL_SECTS): Adjust.
	Amend handling for LD64_VERSION fallback defaults.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config.gcc: Compute default version information
	from the configured target.  Likewise defaults for
	ld64.
	* config/darwin10.h: Removed.
	* config/darwin12.h: Removed.
	* config/darwin9.h: Removed.
	* config/rs6000/darwin8.h: Removed.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin9.h (ASM_OUTPUT_ALIGNED_COMMON): Delete.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin9.h (STACK_CHECK_STATIC_BUILTIN): Move from here..
	* config/darwin.h (STACK_CHECK_STATIC_BUILTIN): .. to here.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move from
	here...
	* config/darwin.h (LINK_GCC_C_SEQUENCE_SPEC): ... to here.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Move the spec
	for the Darwin10 unwinder stub from here ...
	* config/darwin.h (LINK_COMMAND_SPEC_A): ... to here.

2021-01-02  Iain Sandoe  <iain@sandoe.co.uk>

	* config/darwin.h (DSYMUTIL_SPEC): Default to DWARF
	(ASM_DEBUG_SPEC):Only define if the assembler supports
	stabs.
	(PREFERRED_DEBUGGING_TYPE): Default to DWARF.
	(DARWIN_PREFER_DWARF): Define.
	* config/darwin9.h (PREFERRED_DEBUGGING_TYPE): Remove.
	(DARWIN_PREFER_DWARF): Likewise
	(DSYMUTIL_SPEC): Likewise.
	(COLLECT_RUN_DSYMUTIL): Likewise.
	(ASM_DEBUG_SPEC): Likewise.
	(ASM_DEBUG_OPTION_SPEC): Likewise.

2021-01-02  Jan Hubicka  <jh@suse.cz>

	* cfg.c (free_block): ggc_free bb.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* gcc.c (process_command): Update copyright notice dates.
	* gcov-dump.c (print_version): Ditto.
	* gcov.c (print_version): Ditto.
	* gcov-tool.c (print_version): Ditto.
	* gengtype.c (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.

2021-01-01  Jakub Jelinek  <jakub@redhat.com>

	* ChangeLog-2020: Rotate ChangeLog.  New file.


Copyright (C) 2021 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.