+2020-07-31 Roger Sayle <roger@nextmovesoftware.com>
+ Tom de Vries <tdevries@suse.de>
+
+ PR target/90928
+ * config/nvptx/nvptx.c (nvptx_truly_noop_truncation): Implement.
+ (TARGET_TRULY_NOOP_TRUNCATION): Define.
+
+2020-07-31 Richard Biener <rguenther@suse.de>
+
+ PR debug/96383
+ * langhooks-def.h (lhd_finalize_early_debug): Declare.
+ (LANG_HOOKS_FINALIZE_EARLY_DEBUG): Define.
+ (LANG_HOOKS_INITIALIZER): Amend.
+ * langhooks.c: Include cgraph.h and debug.h.
+ (lhd_finalize_early_debug): Default implementation from
+ former code in finalize_compilation_unit.
+ * langhooks.h (lang_hooks::finalize_early_debug): Add.
+ * cgraphunit.c (symbol_table::finalize_compilation_unit):
+ Call the finalize_early_debug langhook.
+
+2020-07-31 Richard Biener <rguenther@suse.de>
+
+ * genmatch.c (expr::force_leaf): Add and initialize.
+ (expr::gen_transform): Honor force_leaf by passing
+ NULL as sequence argument to maybe_push_res_to_seq.
+ (parser::parse_expr): Allow ! marker on result expression
+ operations.
+ * doc/match-and-simplify.texi: Amend.
+
+2020-07-31 Kewen Lin <linkw@linux.ibm.com>
+
+ * tree-vect-loop.c (vect_get_known_peeling_cost): Don't consider branch
+ taken costs for prologue and epilogue if they don't exist.
+ (vect_estimate_min_profitable_iters): Likewise.
+
+2020-07-31 Martin Liska <mliska@suse.cz>
+
+ * cgraph.h: Remove leading empty lines.
+ * cgraphunit.c (enum cgraph_order_sort_kind): Remove
+ ORDER_UNDEFINED.
+ (struct cgraph_order_sort): Add constructors.
+ (cgraph_order_sort::process): New.
+ (cgraph_order_cmp): New.
+ (output_in_order): Simplify and push nodes to vector.
+
+2020-07-31 Richard Biener <rguenther@suse.de>
+
+ PR middle-end/96369
+ * fold-const.c (fold_range_test): Special-case constant
+ LHS for short-circuiting operations.
+
+2020-07-31 Martin Liska <mliska@suse.cz>
+
+ * gcov-io.h (GCOV_PREALLOCATED_KVP): New.
+
+2020-07-31 Zhiheng Xie <xiezhiheng@huawei.com>
+
+ * config/aarch64/aarch64-builtins.c (aarch64_general_add_builtin):
+ Add new argument ATTRS.
+ (aarch64_call_properties): New function.
+ (aarch64_modifies_global_state_p): Likewise.
+ (aarch64_reads_global_state_p): Likewise.
+ (aarch64_could_trap_p): Likewise.
+ (aarch64_add_attribute): Likewise.
+ (aarch64_get_attributes): Likewise.
+ (aarch64_init_simd_builtins): Add attributes for each built-in function.
+
+2020-07-31 Richard Biener <rguenther@suse.de>
+
+ PR debug/78288
+ * var-tracking.c (vt_find_locations): Use
+ rev_post_order_and_mark_dfs_back_seme and separately iterate
+ over toplevel SCCs.
+
+2020-07-31 Richard Biener <rguenther@suse.de>
+
+ * cfganal.h (rev_post_order_and_mark_dfs_back_seme): Adjust
+ prototype.
+ * cfganal.c (rpoamdbs_bb_data): New struct with pre BB data.
+ (tag_header): New helper.
+ (cmp_edge_dest_pre): Likewise.
+ (rev_post_order_and_mark_dfs_back_seme): Compute SCCs,
+ find SCC exits and perform a DFS walk with extra edges to
+ compute a RPO with adjacent SCC members when requesting an
+ iteration optimized order and populate the toplevel SCC array.
+ * tree-ssa-sccvn.c (do_rpo_vn): Remove ad-hoc computation
+ of max_rpo and fill it in from SCC extent info instead.
+
+2020-07-30 Will Schmidt <will_schmidt@vnet.ibm.com>
+
+ * config/rs6000/altivec.h (vec_test_lsbb_all_ones): New define.
+ (vec_test_lsbb_all_zeros): New define.
+ * config/rs6000/rs6000-builtin.def (BU_P10_VSX_1): New built-in
+ handling macro.
+ (XVTLSBB_ZEROS, XVTLSBB_ONES): New builtin defines.
+ (xvtlsbb_all_zeros, xvtlsbb_all_ones): New builtin overloads.
+ * config/rs6000/rs6000-call.c (P10_BUILTIN_VEC_XVTLSBB_ZEROS,
+ P10_BUILTIN_VEC_XVTLSBB_ONES): New altivec_builtin_types entries.
+ * config/rs6000/rs6000.md (UNSPEC_XVTLSBB): New unspec.
+ * config/rs6000/vsx.md (*xvtlsbb_internal): New instruction define.
+ (xvtlsbbo, xvtlsbbz): New instruction expands.
+
+2020-07-30 Cooper Qu <cooper.qu@linux.alibaba.com>
+
+ * config/riscv/riscv-opts.h (stack_protector_guard): New enum.
+ * config/riscv/riscv.c (riscv_option_override): Handle
+ the new options.
+ * config/riscv/riscv.md (stack_protect_set): New pattern to handle
+ flexible stack protector guard settings.
+ (stack_protect_set_<mode>): Ditto.
+ (stack_protect_test): Ditto.
+ (stack_protect_test_<mode>): Ditto.
+ * config/riscv/riscv.opt (mstack-protector-guard=,
+ mstack-protector-guard-reg=, mstack-protector-guard-offset=): New
+ options.
+ * doc/invoke.texi (Option Summary) [RISC-V Options]:
+ Add -mstack-protector-guard=, -mstack-protector-guard-reg=, and
+ -mstack-protector-guard-offset=.
+ (RISC-V Options): Ditto.
+
+2020-07-30 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/96202
+ * configure: Regenerated.
+
+2020-07-30 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96370
+ * tree-ssa-reassoc.c (rewrite_expr_tree): Add operation
+ code parameter and use it instead of picking it up from
+ the stmt that is being rewritten.
+ (reassociate_bb): Pass down the operation code.
+
+2020-07-30 Roger Sayle <roger@nextmovesoftware.com>
+ Tom de Vries <tdevries@suse.de>
+
+ * config/nvptx/nvptx.md (nvptx_vector_index_operand): New predicate.
+ (VECELEM): New mode attribute for a vector's uppercase element mode.
+ (Vecelem): New mode attribute for a vector's lowercase element mode.
+ (*vec_set<mode>_0, *vec_set<mode>_1, *vec_set<mode>_2)
+ (*vec_set<mode>_3): New instructions.
+ (vec_set<mode>): New expander to generate one of the above insns.
+ (vec_extract<mode><Vecelem>): New instruction.
+
+2020-07-30 Martin Liska <mliska@suse.cz>
+
+ PR target/95435
+ * config/i386/x86-tune-costs.h: Use libcall for large sizes for
+ -m32. Start using libcall from 128+ bytes.
+
+2020-07-30 Martin Liska <mliska@suse.cz>
+
+ * config/i386/x86-tune-costs.h: Change code formatting.
+
+2020-07-29 Roger Sayle <roger@nextmovesoftware.com>
+
+ * config/nvptx/nvptx.md (recip<mode>2): New instruction.
+
+2020-07-29 Fangrui Song <maskray@google.com>
+
+ PR debug/95096
+ * opts.c (common_handle_option): Don't make -gsplit-dwarf imply -g.
+ * doc/invoke.texi (-gsplit-dwarf): Update documentation.
+
+2020-07-29 Joe Ramsay <joe.ramsay@arm.com>
+
+ * config/arm/arm-protos.h (arm_coproc_mem_operand_no_writeback):
+ Declare prototype.
+ (arm_mve_mode_and_operands_type_check): Declare prototype.
+ * config/arm/arm.c (arm_coproc_mem_operand): Refactor to use
+ _arm_coproc_mem_operand.
+ (arm_coproc_mem_operand_wb): New function to cover full, limited
+ and no writeback.
+ (arm_coproc_mem_operand_no_writeback): New constraint for memory
+ operand with no writeback.
+ (arm_print_operand): Extend 'E' specifier for memory operand
+ that does not support writeback.
+ (arm_mve_mode_and_operands_type_check): New constraint check for
+ MVE memory operands.
+ * config/arm/constraints.md: Add Uj constraint for VFP vldr.16
+ and vstr.16.
+ * config/arm/vfp.md (*mov_load_vfp_hf16): New pattern for
+ vldr.16.
+ (*mov_store_vfp_hf16): New pattern for vstr.16.
+ (*mov<mode>_vfp_<mode>16): Remove MVE moves.
+
+2020-07-29 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96349
+ * tree-ssa-loop-split.c (stmt_semi_invariant_p_1): When the
+ condition runs into a loop PHI with an abnormal entry value give up.
+
+2020-07-29 Richard Biener <rguenther@suse.de>
+
+ * tree-vectorizer.c (vectorize_loops): Reset the SCEV
+ cache if we removed any SIMD UID SSA defs.
+ * gimple-loop-interchange.cc (pass_linterchange::execute):
+ Reset the scev cache if we interchanged a loop.
+
+2020-07-29 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/95679
+ * tree-ssa-propagate.h
+ (substitute_and_fold_engine::propagate_into_phi_args): Return
+ whether anything changed.
+ * tree-ssa-propagate.c
+ (substitute_and_fold_engine::propagate_into_phi_args): Likewise.
+ (substitute_and_fold_dom_walker::before_dom_children): Update
+ something_changed.
+
+2020-07-29 Stefan Schulze Frielinghaus <stefansf@linux.ibm.com>
+
+ * tree-vect-data-refs.c (vect_enhance_data_refs_alignment):
+ Ensure that loop variable npeel_tmp advances in each iteration.
+
+2020-07-29 Hans-Peter Nilsson <hp@bitrange.com>
+
+ * config/mmix/mmix.h (NO_FUNCTION_CSE): Define to 1.
+
+2020-07-29 Hans-Peter Nilsson <hp@bitrange.com>
+
+ * config/mmix/mmix.h (ASM_OUTPUT_EXTERNAL): Define to
+ default_elf_asm_output_external.
+
+2020-07-28 Sergei Trofimovich <siarheit@google.com>
+
+ PR ipa/96291
+ * ipa-cp.c (has_undead_caller_from_outside_scc_p): Consider
+ unoptimized callers as undead.
+
+2020-07-28 Roger Sayle <roger@nextmovesoftware.com>
+ Richard Biener <rguenther@suse.de>
+
+ * match.pd (popcount(x)&1 -> parity(x)): New simplification.
+ (parity(~x) -> parity(x)): New simplification.
+ (parity(x)^parity(y) -> parity(x^y)): New simplification.
+ (parity(x&1) -> x&1): New simplification.
+ (popcount(x) -> x>>C): New simplification.
+
+2020-07-28 Roger Sayle <roger@nextmovesoftware.com>
+ Tom de Vries <tdevries@suse.de>
+
+ * config/nvptx/nvptx.md (extendqihi2): New instruction.
+ (ashl<mode>3, ashr<mode>3, lshr<mode>3): Support HImode.
+
+2020-07-28 Jakub Jelinek <jakub@redhat.com>
+
+ PR middle-end/96335
+ * calls.c (maybe_warn_rdwr_sizes): Add FNDECL and FNTYPE arguments,
+ instead of trying to rediscover them in the body.
+ (initialize_argument_information): Adjust caller.
+
+2020-07-28 Kewen Lin <linkw@linux.ibm.com>
+
+ * tree-vect-loop.c (vect_get_known_peeling_cost): Factor out some code
+ to determine peel_iters_epilogue to...
+ (vect_get_peel_iters_epilogue): ...this new function.
+ (vect_estimate_min_profitable_iters): Refactor cost calculation on
+ peel_iters_prologue and peel_iters_epilogue.
+
+2020-07-27 Martin Sebor <msebor@redhat.com>
+
+ PR tree-optimization/84079
+ * gimple-array-bounds.cc (array_bounds_checker::check_addr_expr):
+ Only allow just-past-the-end references for the most significant
+ array bound.
+
+2020-07-27 Hu Jiangping <hujiangping@cn.fujitsu.com>
+
+ PR driver/96247
+ * opts.c (check_alignment_argument): Set the -falign-Name
+ on/off flag on and set the -falign-Name string value null,
+ when the command-line specified argument is zero.
+
+2020-07-27 Martin Liska <mliska@suse.cz>
+
+ PR tree-optimization/96058
+ * expr.c (string_constant): Build string_constant only
+ for a type that has same precision as char_type_node
+ and is an integral type.
+
+2020-07-27 Richard Biener <rguenther@suse.de>
+
+ * var-tracking.c (variable_tracking_main_1): Remove call
+ to mark_dfs_back_edges.
+
+2020-07-27 Martin Liska <mliska@suse.cz>
+
+ PR tree-optimization/96128
+ * tree-vect-generic.c (expand_vector_comparison): Do not expand
+ vector comparison with VEC_COND_EXPR.
+
+2020-07-27 H.J. Lu <hjl.tools@gmail.com>
+
+ PR bootstrap/96203
+ * common.opt: Add -fcf-protection=check.
+ * flag-types.h (cf_protection_level): Add CF_CHECK.
+ * lto-wrapper.c (merge_and_complain): Issue an error for
+ mismatching -fcf-protection values with -fcf-protection=check.
+ Otherwise, merge -fcf-protection values.
+ * doc/invoke.texi: Document -fcf-protection=check.
+
+2020-07-27 Martin Liska <mliska@suse.cz>
+
+ PR lto/45375
+ * symbol-summary.h: Call vec_safe_reserve before grow is called
+ in order to grow to a reasonable size.
+ * vec.h (vec_safe_reserve): Add missing function for vl_ptr
+ type.
+
+2020-07-26 Hans-Peter Nilsson <hp@bitrange.com>
+
+ * configure.ac (out-of-tree linker .hidden support): Don't turn off
+ for mmix-knuth-mmixware.
+ * configure: Regenerate.
+
+2020-07-26 Aaron Sawdey <acsawdey@linux.ibm.com>
+
+ * config/rs6000/rs6000.c (rs6000_option_override_internal):
+ Set the default value for -mblock-ops-unaligned-vsx.
+ * config/rs6000/rs6000.opt: Add -mblock-ops-unaligned-vsx.
+ * doc/invoke.texi: Document -mblock-ops-unaligned-vsx.
+
+2020-07-25 Hans-Peter Nilsson <hp@bitrange.com>
+
+ * config/mmix/mmix.c (TARGET_ASM_OUTPUT_IDENT): Override the default
+ with default_asm_output_ident_directive.
+
+2020-07-25 Andrew Stubbs <ams@codesourcery.com>
+
+ * config/gcn/gcn.c (gcn_scalar_mode_supported_p): New function.
+ (TARGET_SCALAR_MODE_SUPPORTED_P): New define.
+
+2020-07-24 David Edelsohn <dje.gcc@gmail.com>
+ Clement Chigot <clement.chigot@atos.net>
+
+ * config.gcc (powerpc-ibm-aix7.1): Use t-aix64 and biarch64 for
+ cpu_is_64bit.
+ * config/rs6000/aix71.h (ASM_SPEC): Remove aix64 option.
+ (ASM_SPEC32): New.
+ (ASM_SPEC64): New.
+ (ASM_CPU_SPEC): Remove vsx and altivec options.
+ (CPP_SPEC_COMMON): Rename from CPP_SPEC.
+ (CPP_SPEC32): New.
+ (CPP_SPEC64): New.
+ (CPLUSPLUS_CPP_SPEC): Rename to CPLUSPLUS_CPP_SPEC_COMMON..
+ (TARGET_DEFAULT): Use 64 bit mask if BIARCH.
+ (LIB_SPEC_COMMON): Rename from LIB_SPEC.
+ (LIB_SPEC32): New.
+ (LIB_SPEC64): New.
+ (LINK_SPEC_COMMON): Rename from LINK_SPEC.
+ (LINK_SPEC32): New.
+ (LINK_SPEC64): New.
+ (STARTFILE_SPEC): Add 64 bit version of crtcxa and crtdbase.
+ (ASM_SPEC): Define 32 and 64 bit alternatives using DEFAULT_ARCH64_P.
+ (CPP_SPEC): Same.
+ (CPLUSPLUS_CPP_SPEC): Same.
+ (LIB_SPEC): Same.
+ (LINK_SPEC): Same.
+ (SUBTARGET_EXTRA_SPECS): Add new 32/64 specs.
+ * config/rs6000/aix72.h (TARGET_DEFAULT): Use 64 bit mask if BIARCH.
+ * config/rs6000/defaultaix64.h: Delete.
+
+2020-07-24 Segher Boessenkool <segher@kernel.crashing.org>
+
+ * config/rs6000/rs6000.opt: Delete -mpower10.
+
+2020-07-24 Alexandre Oliva <oliva@adacore.com>
+
+ * config/i386/intelmic-mkoffload.c
+ (generate_target_descr_file): Use dumppfx for save_temps
+ files. Pass -dumpbase et al down to the compiler.
+ (generate_target_offloadend_file): Likewise.
+ (generate_host_descr_file): Likewise.
+ (prepare_target_image): Likewise. Move out_obj_filename
+ setting...
+ (main): ... here. Detect -dumpbase, set dumppfx too.
+
+2020-07-24 Alexandre Oliva <oliva@adacore.com>
+
+ PR driver/96230
+ * gcc.c (process_command): Adjust and document conditions to
+ reset dumpbase_ext.
+
+2020-07-24 Matthias Klose <doko@ubuntu.com>
+
+ * config/aarch64/aarch64.c (+aarch64_offload_options,
+ TARGET_OFFLOAD_OPTIONS): New.
+
+2020-07-24 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/95750
+ * config/i386/sync.md (mmem_thread_fence): Emit mfence_sse2 for -Os.
+
+2020-07-23 Roger Sayle <roger@nextmovesoftware.com>
+
+ PR rtl-optimization/96298
+ * simplify-rtx.c (simplify_binary_operation_1) [XOR]: Xor doesn't
+ distribute over xor, so (a^b)^(c^b) is not the same as (a^c)^b.
+
+2020-07-23 Dong JianQiang <dongjianqiang2@huawei.com>
+
+ PR gcov-profile/96267
+ * gcov-io.c (gcov_open): enable if IN_GCOV_TOOL.
+
+2020-07-23 Kewen Lin <linkw@linux.ibm.com>
+
+ * config/rs6000/rs6000.c (adjust_vectorization_cost): Renamed to ...
+ (rs6000_adjust_vect_cost_per_stmt): ... here.
+ (rs6000_add_stmt_cost): Rename adjust_vectorization_cost to
+ rs6000_adjust_vect_cost_per_stmt.
+
+2020-07-23 Kewen Lin <linkw@linux.ibm.com>
+
+ * tree-ssa-loop-ivopts.c (get_mem_type_for_internal_fn): Handle
+ IFN_LEN_LOAD and IFN_LEN_STORE.
+ (get_alias_ptr_type_for_ptr_address): Likewise.
+
+2020-07-23 Kito Cheng <kito.cheng@sifive.com>
+
+ PR target/96260
+ * asan.c (asan_shadow_offset_set_p): New.
+ * asan.h (asan_shadow_offset_set_p): Ditto.
+ * toplev.c (process_options): Allow -fsanitize=kernel-address
+ even TARGET_ASAN_SHADOW_OFFSET not implemented, only check when
+ asan stack protection is enabled.
+
+2020-07-22 Peter Bergner <bergner@linux.ibm.com>
+
+ PR target/96236
+ * config/rs6000/rs6000-call.c (rs6000_gimple_fold_mma_builtin): Handle
+ little-endian memory ordering.
+
+2020-07-22 Nathan Sidwell <nathan@acm.org>
+
+ * dumpfile.c (parse_dump_option): Deal with filenames
+ containing '-'
+
+2020-07-22 Nathan Sidwell <nathan@acm.org>
+
+ * incpath.c (add_path): Avoid multiple strlen calls.
+
+2020-07-22 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * expmed.c (expand_sdiv_pow2): Check return value from emit_store_flag
+ is not NULL_RTX before use.
+
+2020-07-22 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * expr.c (convert_modes): Allow a constant integer to be converted to
+ any scalar int mode.
+
+2020-07-22 Przemyslaw Wirkus <przemyslaw.wirkus@arm.com>
+
+ * config/aarch64/aarch64-ldpstp.md: Add two peepholes for adjusted vector
+ V2SI, V2SF, V2DI, V2DF load pair and store pair modes.
+ * config/aarch64/aarch64-protos.h (aarch64_gen_adjusted_ldpstp):
+ Change mode parameter to machine_mode.
+ (aarch64_operands_adjust_ok_for_ldpstp): Change mode parameter to
+ machine_mode.
+ * config/aarch64/aarch64.c (aarch64_operands_adjust_ok_for_ldpstp):
+ Change mode parameter to machine_mode.
+ (aarch64_gen_adjusted_ldpstp): Change mode parameter to machine_mode.
+ * config/aarch64/iterators.md (VP_2E): New iterator for 2 element vectors.
+
+2020-07-22 Wei Wentao <weiwt.fnst@cn.fujitsu.com>
+
+ * doc/languages.texi: Fix “then”/“than” typo.
+
+2020-07-21 Sunil K Pandey <skpgkp2@gmail.com>
+
+ PR target/95237
+ * config/i386/i386-protos.h (ix86_local_alignment): Add
+ another function parameter may_lower alignment. Default is
+ false.
+ * config/i386/i386.c (ix86_lower_local_decl_alignment): New
+ function.
+ (ix86_local_alignment): Amend ix86_local_alignment to accept
+ another parameter may_lower. If may_lower is true, new align
+ may be lower than incoming alignment. If may_lower is false,
+ new align will be greater or equal to incoming alignment.
+ (TARGET_LOWER_LOCAL_DECL_ALIGNMENT): Define.
+ * doc/tm.texi: Regenerate.
+ * doc/tm.texi.in (TARGET_LOWER_LOCAL_DECL_ALIGNMENT): New
+ hook.
+ * target.def (lower_local_decl_alignment): New hook.
+
+2020-07-21 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/95750
+ * config/i386/sync.md (mfence_sse2): Enable for
+ TARGET_64BIT and TARGET_SSE2.
+ (mfence_nosse): Always enable.
+
+2020-07-21 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * config/msp430/msp430-protos.h (msp430_do_not_relax_short_jumps):
+ Remove.
+ * config/msp430/msp430.c (msp430_do_not_relax_short_jumps): Likewise.
+ * config/msp430/msp430.md (cbranchhi4_real): Remove special case for
+ msp430_do_not_relax_short_jumps.
+
+2020-07-21 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * config/msp430/msp430.md: New "extendqipsi2" define_insn.
+
+2020-07-21 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * config/msp430/msp430.h (NO_FUNCTION_CSE): Set to true at -O2 and
+ above.
+
+2020-07-21 Xionghu Luo <luoxhu@linux.ibm.com>
+
+ PR rtl-optimization/89310
+ * config/rs6000/rs6000.md (movsf_from_si2): New define_insn_and_split.
+
+2020-07-20 Hans-Peter Nilsson <hp@bitrange.com>
+
+ * config/mmix/mmix.c (mmix_expand_prologue): Calculate the total
+ allocated size and set current_function_static_stack_size, if
+ flag_stack_usage_info.
+
+2020-07-20 Sergei Trofimovich <siarheit@google.com>
+
+ PR target/96190
+ * config/sparc/linux.h (ENDFILE_SPEC): Use GNU_USER_TARGET_ENDFILE_SPEC
+ to get crtendS.o for !no-pie mode.
+ * config/sparc/linux64.h (ENDFILE_SPEC): Ditto.
+
+2020-07-20 Yang Yang <yangyang305@huawei.com>
+
+ * tree-vect-stmts.c (vectorizable_simd_clone_call): Add
+ VIEW_CONVERT_EXPRs if the arguments types and return type
+ of simd clone function are distinct with the vectype of stmt.
+
+2020-07-20 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/95750
+ * config/i386/i386.h (TARGET_AVOID_MFENCE):
+ Rename from TARGET_USE_XCHG_FOR_ATOMIC_STORE.
+ * config/i386/sync.md (mfence_sse2): Disable for TARGET_AVOID_MFENCE.
+ (mfence_nosse): Enable also for TARGET_AVOID_MFENCE. Emit stack
+ referred memory in word_mode.
+ (mem_thread_fence): Do not generate mfence_sse2 pattern when
+ TARGET_AVOID_MFENCE is true.
+ (atomic_store<mode>): Update for rename.
+ * config/i386/x86-tune.def (X86_TUNE_AVOID_MFENCE):
+ Rename from X86_TUNE_USE_XCHG_FOR_ATOMIC_STORE.
+
+2020-07-20 Martin Sebor <msebor@redhat.com>
+
+ PR middle-end/95189
+ PR middle-end/95886
+ * builtins.c (inline_expand_builtin_string_cmp): Rename...
+ (inline_expand_builtin_bytecmp): ...to this.
+ (builtin_memcpy_read_str): Don't expect data to be nul-terminated.
+ (expand_builtin_memory_copy_args): Handle object representations
+ with embedded nul bytes.
+ (expand_builtin_memcmp): Same.
+ (expand_builtin_strcmp): Adjust call to naming change.
+ (expand_builtin_strncmp): Same.
+ * expr.c (string_constant): Create empty strings with nonzero size.
+ * fold-const.c (c_getstr): Rename locals and update comments.
+ * tree.c (build_string): Accept null pointer argument.
+ (build_string_literal): Same.
+ * tree.h (build_string): Provide a default.
+ (build_string_literal): Same.
+
+2020-07-20 Richard Biener <rguenther@suse.de>
+
+ * cfganal.c (rev_post_order_and_mark_dfs_back_seme): Remove
+ write-only post array.
+
+2020-07-20 Jakub Jelinek <jakub@redhat.com>
+
+ PR libstdc++/93121
+ * gimple-fold.c (fold_const_aggregate_ref_1): For COMPONENT_REF
+ of a bitfield not aligned on byte boundaries try to
+ fold_ctor_reference DECL_BIT_FIELD_REPRESENTATIVE if any and
+ adjust it depending on endianity.
+
+2020-07-20 Jakub Jelinek <jakub@redhat.com>
+
+ PR libstdc++/93121
+ * fold-const.c (native_encode_initializer): Handle bit-fields.
+
+2020-07-20 Kewen Lin <linkw@linux.ibm.com>
+
+ * config/rs6000/rs6000.c (rs6000_option_override_internal):
+ Set param_vect_partial_vector_usage to 0 explicitly.
+ * doc/invoke.texi (vect-partial-vector-usage): Document new option.
+ * optabs-query.c (get_len_load_store_mode): New function.
+ * optabs-query.h (get_len_load_store_mode): New declare.
+ * params.opt (vect-partial-vector-usage): New.
+ * tree-vect-loop-manip.c (vect_set_loop_controls_directly): Add the
+ handlings for vectorization using length-based partial vectors, call
+ vect_gen_len for length generation, and rename some variables with
+ items instead of scalars.
+ (vect_set_loop_condition_partial_vectors): Add the handlings for
+ vectorization using length-based partial vectors.
+ (vect_do_peeling): Allow remaining eiters less than epilogue vf for
+ LOOP_VINFO_USING_PARTIAL_VECTORS_P.
+ * tree-vect-loop.c (_loop_vec_info::_loop_vec_info): Init
+ epil_using_partial_vectors_p.
+ (_loop_vec_info::~_loop_vec_info): Call release_vec_loop_controls
+ for lengths destruction.
+ (vect_verify_loop_lens): New function.
+ (vect_analyze_loop): Add handlings for epilogue of loop when it's
+ marked to use vectorization using partial vectors.
+ (vect_analyze_loop_2): Add the check to allow only one vectorization
+ approach using partial vectorization at the same time. Check param
+ vect-partial-vector-usage for partial vectors decision. Mark
+ LOOP_VINFO_EPIL_USING_PARTIAL_VECTORS_P if the epilogue is
+ considerable to use partial vectors. Call release_vec_loop_controls
+ for lengths destruction.
+ (vect_estimate_min_profitable_iters): Adjust for loop vectorization
+ using length-based partial vectors.
+ (vect_record_loop_mask): Init factor to 1 for vectorization using
+ mask-based partial vectors.
+ (vect_record_loop_len): New function.
+ (vect_get_loop_len): Likewise.
+ * tree-vect-stmts.c (check_load_store_for_partial_vectors): Add
+ checks for vectorization using length-based partial vectors. Factor
+ some code to lambda function get_valid_nvectors.
+ (vectorizable_store): Add handlings when using length-based partial
+ vectors.
+ (vectorizable_load): Likewise.
+ (vect_gen_len): New function.
+ * tree-vectorizer.h (struct rgroup_controls): Add field factor
+ mainly for length-based partial vectors.
+ (vec_loop_lens): New typedef.
+ (_loop_vec_info): Add lens and epil_using_partial_vectors_p.
+ (LOOP_VINFO_EPIL_USING_PARTIAL_VECTORS_P): New macro.
+ (LOOP_VINFO_LENS): Likewise.
+ (LOOP_VINFO_FULLY_WITH_LENGTH_P): Likewise.
+ (vect_record_loop_len): New declare.
+ (vect_get_loop_len): Likewise.
+ (vect_gen_len): Likewise.
+
+2020-07-20 Hans-Peter Nilsson <hp@bitrange.com>
+
+ * config/mmix/mmix.c (mmix_option_override): Reinstate default
+ integer-emitting targetm.asm_out pseudos when dumping detailed
+ assembly-code.
+ (mmix_assemble_integer): Update comment.
+
+2020-07-19 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/95973
+ PR target/96238
+ * config/i386/cpuid.h: Add include guard.
+ (__cpuidex): New.
+
+2020-07-18 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/95620
+ * config/i386/x86-64.h (ASM_OUTPUT_ALIGNED_DECL_LOCAL): New.
+
+2020-07-18 Peter Bergner <bergner@linux.ibm.com>
+
+ PR target/92488
+ * config/rs6000/dfp.md (trunctdsd2): New define_insn.
+ * config/rs6000/rs6000.md (define_attr "isa"): Add p9.
+ (define_attr "enabled"): Handle p9.
+
+2020-07-17 Roger Sayle <roger@nextmovesoftware.com>
+
+ * function.c (assign_parm_setup_block): Use the macro
+ TRULY_NOOP_TRUNCATION_MODES_P instead of calling
+ targetm.truly_noop_truncation directly.
+
+2020-07-17 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/96186
+ PR target/88713
+ * config/i386/sse.md (VF_AVX512VL_VF1_128_256): Renamed to ...
+ (VF1_AVX512ER_128_256): This. Drop DF vector modes.
+ (rsqrt<mode>2): Replace VF_AVX512VL_VF1_128_256 with
+ VF1_AVX512ER_128_256.
+
+2020-07-17 Tamar Christina <tamar.christina@arm.com>
+
+ * doc/sourcebuild.texi (dg-set-compiler-env-var,
+ dg-set-target-env-var): Document.
+
+2020-07-17 Tamar Christina <tamar.christina@arm.com>
+
+ * config/arm/driver-arm.c (host_detect_local_cpu): Add GCC_CPUINFO.
+
+2020-07-17 Tamar Christina <tamar.christina@arm.com>
+
+ * config/aarch64/driver-aarch64.c (host_detect_local_cpu):
+ Add GCC_CPUINFO.
+
+2020-07-17 Tamar Christina <tamar.christina@arm.com>
+
+ * config/aarch64/driver-aarch64.c (INCLUDE_SET): New.
+ (parse_field): Use std::string.
+ (split_words, readline, find_field): New.
+ (host_detect_local_cpu): Fix truncation issues.
+
+2020-07-17 Andrew Stubbs <ams@codesourcery.com>
+
+ * config/gcn/mkoffload.c (EM_AMDGPU): Undefine before defining.
+ (ELFOSABI_AMDGPU_HSA): Likewise.
+ (ELFABIVERSION_AMDGPU_HSA): Likewise.
+ (EF_AMDGPU_MACH_AMDGCN_GFX803): Likewise.
+ (EF_AMDGPU_MACH_AMDGCN_GFX900): Likewise.
+ (EF_AMDGPU_MACH_AMDGCN_GFX906): Likewise.
+ (reserved): Delete.
+
+2020-07-17 Andrew Pinski <apinksi@marvell.com>
+ Dmitrij Pochepko <dmitrij.pochepko@bell-sw.com>
+
+ PR target/93720
+ * config/aarch64/aarch64.c (aarch64_evpc_ins): New function.
+ (aarch64_expand_vec_perm_const_1): Call it.
+ * config/aarch64/aarch64-simd.md (aarch64_simd_vec_copy_lane): Make
+ public, and add a "@" prefix.
+
+2020-07-17 Andrew Pinski <apinksi@marvell.com>
+ Dmitrij Pochepko <dmitrij.pochepko@bell-sw.com>
+
+ PR target/82199
+ * config/aarch64/aarch64.c (aarch64_evpc_reencode): New function.
+ (aarch64_expand_vec_perm_const_1): Call it.
+
+2020-07-17 Zhiheng Xie <xiezhiheng@huawei.com>
+
+ * config/aarch64/aarch64-builtins.c (enum aarch64_type_qualifiers):
+ Add new field flags.
+ (VAR1): Add new field FLAG in macro.
+ (VAR2): Likewise.
+ (VAR3): Likewise.
+ (VAR4): Likewise.
+ (VAR5): Likewise.
+ (VAR6): Likewise.
+ (VAR7): Likewise.
+ (VAR8): Likewise.
+ (VAR9): Likewise.
+ (VAR10): Likewise.
+ (VAR11): Likewise.
+ (VAR12): Likewise.
+ (VAR13): Likewise.
+ (VAR14): Likewise.
+ (VAR15): Likewise.
+ (VAR16): Likewise.
+ (aarch64_general_fold_builtin): Likewise.
+ (aarch64_general_gimple_fold_builtin): Likewise.
+ * config/aarch64/aarch64-simd-builtins.def: Add default flag for
+ each built-in function.
+ * config/aarch64/geniterators.sh: Add new field in BUILTIN macro.
+
+2020-07-17 Andreas Krebbel <krebbel@linux.ibm.com>
+
+ PR target/96127
+ * config/s390/s390.c (s390_expand_insv): Invoke the movstrict
+ expanders to generate the pattern.
+ * config/s390/s390.md ("*movstricthi", "*movstrictqi"): Remove the
+ '*' to have callable expanders.
+
+2020-07-16 Hans-Peter Nilsson <hp@axis.com>
+ Segher Boessenkool <segher@kernel.crashing.org>
+
+ PR target/93372
+ * combine.c (is_just_move): Take an rtx_insn* as argument. Use
+ single_set on it.
+
+2020-07-16 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/96189
+ * config/i386/sync.md
+ (peephole2 to remove unneded compare after CMPXCHG):
+ New pattern, also handle XOR zeroing and load of -1 by OR.
+
+2020-07-16 Eric Botcazou <ebotcazou@gcc.gnu.org>
+
+ * config/i386/i386.c (ix86_compute_frame_layout): Minor tweak.
+ (ix86_adjust_stack_and_probe): Delete.
+ (ix86_adjust_stack_and_probe_stack_clash): Rename to above and add
+ PROTECTION_AREA parameter. If it is true, probe PROBE_INTERVAL plus
+ a small dope beyond SIZE bytes.
+ (ix86_emit_probe_stack_range): Use local variable.
+ (ix86_expand_prologue): Adjust calls to ix86_adjust_stack_and_probe
+ and tidy up the stack checking code.
+ * explow.c (get_stack_check_protect): Fix head comment.
+ (anti_adjust_stack_and_probe_stack_clash): Likewise.
+ (allocate_dynamic_stack_space): Add comment.
+ * tree-nested.c (lookup_field_for_decl): Set the DECL_IGNORED_P and
+ TREE_NO_WARNING but not TREE_ADDRESSABLE flags on the field.
+
+2020-07-16 Andrew Stubbs <ams@codesourcery.com>
+
+ * config/gcn/mkoffload.c: Include simple-object.h and elf.h.
+ (EM_AMDGPU): New macro.
+ (ELFOSABI_AMDGPU_HSA): New macro.
+ (ELFABIVERSION_AMDGPU_HSA): New macro.
+ (EF_AMDGPU_MACH_AMDGCN_GFX803): New macro.
+ (EF_AMDGPU_MACH_AMDGCN_GFX900): New macro.
+ (EF_AMDGPU_MACH_AMDGCN_GFX906): New macro.
+ (R_AMDGPU_NONE): New macro.
+ (R_AMDGPU_ABS32_LO): New macro.
+ (R_AMDGPU_ABS32_HI): New macro.
+ (R_AMDGPU_ABS64): New macro.
+ (R_AMDGPU_REL32): New macro.
+ (R_AMDGPU_REL64): New macro.
+ (R_AMDGPU_ABS32): New macro.
+ (R_AMDGPU_GOTPCREL): New macro.
+ (R_AMDGPU_GOTPCREL32_LO): New macro.
+ (R_AMDGPU_GOTPCREL32_HI): New macro.
+ (R_AMDGPU_REL32_LO): New macro.
+ (R_AMDGPU_REL32_HI): New macro.
+ (reserved): New macro.
+ (R_AMDGPU_RELATIVE64): New macro.
+ (gcn_s1_name): Delete global variable.
+ (gcn_s2_name): Delete global variable.
+ (gcn_o_name): Delete global variable.
+ (gcn_cfile_name): Delete global variable.
+ (files_to_cleanup): New global variable.
+ (offload_abi): New global variable.
+ (tool_cleanup): Use files_to_cleanup, not explicit list.
+ (copy_early_debug_info): New function.
+ (main): New local variables gcn_s1_name, gcn_s2_name, gcn_o_name,
+ gcn_cfile_name.
+ Create files_to_cleanup obstack.
+ Recognize -march options.
+ Copy early debug info from input .o files.
+
+2020-07-16 Andrea Corallo <andrea.corallo@arm.com>
+
+ * Makefile.in (TAGS): Remove 'params.def'.
+
+2020-07-16 Roger Sayle <roger@nextmovesoftware.com>
+
+ * target.def (TARGET_TRULY_NOOP_TRUNCATION): Clarify that
+ targets that return false, indicating SUBREGs shouldn't be
+ used, also need to provide a trunc?i?i2 optab that performs this
+ truncation.
+ * doc/tm.texi: Regenerate.
+
+2020-07-15 Uroš Bizjak <ubizjak@gmail.com>
+
+ PR target/96189
+ * config/i386/sync.md
+ (peephole2 to remove unneded compare after CMPXCHG): New pattern.
+
+2020-07-15 Jakub Jelinek <jakub@redhat.com>
+
+ PR libgomp/96198
+ * omp-general.h (struct omp_for_data): Rename min_inner_iterations
+ member to first_inner_iterations, adjust comment.
+ * omp-general.c (omp_extract_for_data): Adjust for the above change.
+ Always use n1first and n2first to compute it, rather than depending
+ on single_nonrect_cond_code. Similarly, always compute factor
+ as (m2 - m1) * outer_step / inner_step rather than sometimes m1 - m2
+ depending on single_nonrect_cond_code.
+ * omp-expand.c (expand_omp_for_init_vars): Rename min_inner_iterations
+ to first_inner_iterations and min_inner_iterationsd to
+ first_inner_iterationsd.
+
+2020-07-15 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/96174
+ * config/i386/avx512fintrin.h (_mm512_cmpeq_pd_mask,
+ _mm512_mask_cmpeq_pd_mask, _mm512_cmplt_pd_mask,
+ _mm512_mask_cmplt_pd_mask, _mm512_cmple_pd_mask,
+ _mm512_mask_cmple_pd_mask, _mm512_cmpunord_pd_mask,
+ _mm512_mask_cmpunord_pd_mask, _mm512_cmpneq_pd_mask,
+ _mm512_mask_cmpneq_pd_mask, _mm512_cmpnlt_pd_mask,
+ _mm512_mask_cmpnlt_pd_mask, _mm512_cmpnle_pd_mask,
+ _mm512_mask_cmpnle_pd_mask, _mm512_cmpord_pd_mask,
+ _mm512_mask_cmpord_pd_mask, _mm512_cmpeq_ps_mask,
+ _mm512_mask_cmpeq_ps_mask, _mm512_cmplt_ps_mask,
+ _mm512_mask_cmplt_ps_mask, _mm512_cmple_ps_mask,
+ _mm512_mask_cmple_ps_mask, _mm512_cmpunord_ps_mask,
+ _mm512_mask_cmpunord_ps_mask, _mm512_cmpneq_ps_mask,
+ _mm512_mask_cmpneq_ps_mask, _mm512_cmpnlt_ps_mask,
+ _mm512_mask_cmpnlt_ps_mask, _mm512_cmpnle_ps_mask,
+ _mm512_mask_cmpnle_ps_mask, _mm512_cmpord_ps_mask,
+ _mm512_mask_cmpord_ps_mask): Move outside of __OPTIMIZE__ guarded
+ section.
+
+2020-07-15 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/96176
+ * builtins.c: Include gimple-ssa.h, tree-ssa-live.h and
+ tree-outof-ssa.h.
+ (expand_expr_force_mode): If exp is a SSA_NAME with different mode
+ from MODE and get_gimple_for_ssa_name is a cast from MODE, use the
+ cast's rhs.
+
+2020-07-15 Jiufu Guo <guojiufu@cn.ibm.com>
+
+ * config/rs6000/rs6000.c (rs6000_loop_unroll_adjust): Refine hook.
+
+2020-07-14 David Edelsohn <dje.gcc@gmail.com>
+
+ * config/rs6000/rs6000.md (rotldi3_insert_sf): Add TARGET_POWERPC64
+ condition.
+ * config/rs6000/rs6000.c (rs6000_expand_vector_init): Add
+ TARGET_POWERPC64 requirement to TARGET_P8_VECTOR case.
+
+2020-07-14 Lewis Hyatt <lhyatt@gmail.com>
+
+ PR preprocessor/49973
+ PR other/86904
+ * common.opt: Handle -ftabstop here instead of in c-family
+ options. Add -fdiagnostics-column-unit= and
+ -fdiagnostics-column-origin= options.
+ * opts.c (common_handle_option): Handle the new options.
+ * diagnostic-format-json.cc (json_from_expanded_location): Add
+ diagnostic_context argument. Use it to convert column numbers as per
+ the new options.
+ (json_from_location_range): Likewise.
+ (json_from_fixit_hint): Likewise.
+ (json_end_diagnostic): Pass the new context argument to helper
+ functions above. Add "column-origin" field to the output.
+ (test_unknown_location): Add the new context argument to calls to
+ helper functions.
+ (test_bad_endpoints): Likewise.
+ * diagnostic-show-locus.c
+ (exploc_with_display_col::exploc_with_display_col): Support
+ tabstop parameter.
+ (layout_point::layout_point): Make use of class
+ exploc_with_display_col.
+ (layout_range::layout_range): Likewise.
+ (struct line_bounds): Clarify that the units are now always
+ display columns. Rename members accordingly. Add constructor.
+ (layout::print_source_line): Add support for tab expansion.
+ (make_range): Adapt to class layout_range changes.
+ (layout::maybe_add_location_range): Likewise.
+ (layout::layout): Adapt to class exploc_with_display_col changes.
+ (layout::calculate_x_offset_display): Support tabstop parameter.
+ (layout::print_annotation_line): Adapt to struct line_bounds changes.
+ (layout::print_line): Likewise.
+ (line_label::line_label): Add diagnostic_context argument.
+ (get_affected_range): Likewise.
+ (get_printed_columns): Likewise.
+ (layout::print_any_labels): Adapt to struct line_label changes.
+ (class correction): Add m_tabstop member.
+ (correction::correction): Add tabstop argument.
+ (correction::compute_display_cols): Use m_tabstop.
+ (class line_corrections): Add m_context member.
+ (line_corrections::line_corrections): Add diagnostic_context argument.
+ (line_corrections::add_hint): Use m_context to handle tabstops.
+ (layout::print_trailing_fixits): Adapt to class line_corrections
+ changes.
+ (test_layout_x_offset_display_utf8): Support tabstop parameter.
+ (test_layout_x_offset_display_tab): New selftest.
+ (test_one_liner_colorized_utf8): Likewise.
+ (test_tab_expansion): Likewise.
+ (test_diagnostic_show_locus_one_liner_utf8): Call the new tests.
+ (diagnostic_show_locus_c_tests): Likewise.
+ (test_overlapped_fixit_printing): Adapt to helper class and
+ function changes.
+ (test_overlapped_fixit_printing_utf8): Likewise.
+ (test_overlapped_fixit_printing_2): Likewise.
+ * diagnostic.h (enum diagnostics_column_unit): New enum.
+ (struct diagnostic_context): Add members for the new options.
+ (diagnostic_converted_column): Declare.
+ (json_from_expanded_location): Add new context argument.
+ * diagnostic.c (diagnostic_initialize): Initialize new members.
+ (diagnostic_converted_column): New function.
+ (maybe_line_and_column): Be willing to output a column of 0.
+ (diagnostic_get_location_text): Convert column number as per the new
+ options.
+ (diagnostic_report_current_module): Likewise.
+ (assert_location_text): Add origin and column_unit arguments for
+ testing the new functionality.
+ (test_diagnostic_get_location_text): Test the new functionality.
+ * doc/invoke.texi: Document the new options and behavior.
+ * input.h (location_compute_display_column): Add tabstop argument.
+ * input.c (location_compute_display_column): Likewise.
+ (test_cpp_utf8): Add selftests for tab expansion.
+ * tree-diagnostic-path.cc (default_tree_make_json_for_path): Pass the
+ new context argument to json_from_expanded_location().
+
+2020-07-14 Jakub Jelinek <jakub@redhat.com>
+
+ PR middle-end/96194
+ * expr.c (expand_constructor): Don't create temporary for store to
+ volatile MEM if exp has an addressable type.
+
+2020-07-14 Nathan Sidwell <nathan@acm.org>
+
+ * hash-map.h (hash_map::get): Note it is a pointer to value.
+ * incpath.h (incpath_kind): Align comments.
+
+2020-07-14 Nathan Sidwell <nathan@acm.org>
+
+ * tree-core.h (tree_decl_with_vis, tree_function_decl):
+ Note additional padding on 64-bits
+ * tree.c (cache_integer_cst): Note why no caching of enum literals.
+ (get_tree_code_name): Robustify error case.
+
+2020-07-14 Nathan Sidwell <nathan@acm.org>
+
+ * doc/gty.texi: Fic gt_cleare_cache name.
+ * doc/invoke.texi: Remove duplicate opindex Wabi-tag.
+
+2020-07-14 Jakub Jelinek <jakub@redhat.com>
+
+ * omp-general.h (struct omp_for_data): Add adjn1 member.
+ * omp-general.c (omp_extract_for_data): For non-rect loop, punt on
+ count computing if n1, n2 or step are not INTEGER_CST earlier.
+ Narrow the outer iterator range if needed so that non-rect loop
+ has at least one iteration for each outer range iteration. Compute
+ adjn1.
+ * omp-expand.c (expand_omp_for_init_vars): Use adjn1 if non-NULL
+ instead of the outer loop's n1.
+
+2020-07-14 Matthias Klose <doko@ubuntu.com>
+
+ PR lto/95604
+ * lto-wrapper.c (merge_and_complain): Add decoded options as parameter,
+ error on different values for -fcf-protection.
+ (append_compiler_options): Pass -fcf-protection option.
+ (find_and_merge_options): Add decoded options as parameter,
+ pass decoded_options to merge_and_complain.
+ (run_gcc): Pass decoded options to find_and_merge_options.
+ * lto-opts.c (lto_write_options): Pass -fcf-protection option.
+
+2020-07-13 Alan Modra <amodra@gmail.com>
+
+ * config/rs6000/rs6000.md (sibcall_local): Merge sibcall_local32
+ and sibcall_local64.
+ (sibcall_value_local): Similarly.
+
+2020-07-13 Nathan Sidwell <nathan@acm.org>
+
+ * Makefile.in (distclean): Remove long gone cxxmain.c
+
+2020-07-13 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/95443
+ * config/i386/i386.md (cmpstrnsi): Pass a copy of the string
+ length to cmpstrnqi patterns.
+
+2020-07-13 Jakub Jelinek <jakub@redhat.com>
+
+ PR ipa/96130
+ * ipa-fnsummary.c (analyze_function_body): Treat NULL bb->aux
+ as false predicate.
+
+2020-07-13 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96163
+ * tree-vect-slp.c (vect_schedule_slp_instance): Put new stmts
+ at least after region begin.
+
+2020-07-13 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Add
+ __ARM_FEATURE_PAC_DEFAULT support.
+
+2020-07-13 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ PR target/94891
+ * doc/extend.texi: Update the text for __builtin_return_address.
+
+2020-07-13 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ PR target/94891
+ * config/aarch64/aarch64.c (aarch64_return_address_signing_enabled):
+ Disable return address signing if __builtin_eh_return is used.
+
+2020-07-13 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ PR target/94891
+ PR target/94791
+ * config/aarch64/aarch64-protos.h (aarch64_return_addr_rtx): Declare.
+ * config/aarch64/aarch64.c (aarch64_return_addr_rtx): New.
+ (aarch64_return_addr): Use aarch64_return_addr_rtx.
+ * config/aarch64/aarch64.h (PROFILE_HOOK): Likewise.
+
+2020-07-13 Richard Sandiford <richard.sandiford@arm.com>
+
+ PR middle-end/95114
+ * tree.h (virtual_method_call_p): Add a default-false parameter
+ that indicates whether the function is being called from dump
+ routines.
+ (obj_type_ref_class): Likewise.
+ * tree.c (virtual_method_call_p): Likewise.
+ * ipa-devirt.c (obj_type_ref_class): Likewise. Lazily add ODR
+ type information for the type when the parameter is false.
+ * tree-pretty-print.c (dump_generic_node): Update calls to
+ virtual_method_call_p and obj_type_ref_class accordingly.
+
+2020-07-13 Julian Brown <julian@codesourcery.com>
+ Thomas Schwinge <thomas@codesourcery.com>
+
+ * gimplify.c (gimplify_scan_omp_clauses): Do not strip
+ GOMP_MAP_TO_PSET/GOMP_MAP_POINTER for OpenACC enter/exit data
+ directives (see also PR92929).
+
+2020-07-13 Roger Sayle <roger@nextmovesoftware.com>
+
+ * convert.c (convert_to_integer_1): Narrow integer operations
+ even on targets that require explicit truncation instructions.
+
+2020-07-13 Hans-Peter Nilsson <hp@axis.com>
+
+ PR target/93372
+ * config/cris/cris-passes.def: New file.
+ * config/cris/t-cris (PASSES_EXTRA): Add cris-passes.def.
+ * config/cris/cris.c: Add infrastructure bits and pass execute
+ function cris_postdbr_cmpelim.
+ * config/cris/cris-protos.h (make_pass_cris_postdbr_cmpelim): Declare.
+
+2020-07-13 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/t-cris: Remove gt-cris.h-related excessive cargo.
+
+2020-07-13 Hans-Peter Nilsson <hp@axis.com>
+
+ PR target/93372
+ * config/cris/cris.md ("*add<mode>3_addi"): New splitter.
+ ("*addi_b_<mode>"): New pattern.
+ ("*addsi3<setnz>"): Remove stale %-related comment.
+
+2020-07-13 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/cris.md ("setnz_subst", "setnz_subst", "setcc_subst"):
+ Use match_dup in output template, not match_operand.
+
+2020-07-13 Richard Biener <rguenther@suse.de>
+
+ * var-tracking.c (bb_heap_node_t): Remove unused typedef.
+ (vt_find_locations): Eliminate visited bitmap in favor of
+ RPO order check. Dump statistics about the number of
+ local BB dataflow computes.
+
+2020-07-13 Richard Biener <rguenther@suse.de>
+
+ PR middle-end/94600
+ * expr.c (expand_constructor): Make a temporary also if we're
+ storing to volatile memory.
+
+2020-07-13 Xionghu Luo <luoxhu@linux.ibm.com>
+
+ * config/rs6000/rs6000.md (rotl_unspec): New
+ define_insn_and_split.
+
+2020-07-13 Xionghu Luo <luoxhu@linux.ibm.com>
+
+ * config/rs6000/rs6000.c (rs6000_expand_vector_init):
+ Move V4SF to V4SI, init vector like V4SI and move to V4SF back.
+
+2020-07-11 Roger Sayle <roger@nextmovesoftware.com>
+
+ * internal-fn.c (expand_mul_overflow): When checking for signed
+ overflow from a widening multiplication, we access the truncated
+ lowpart RES twice, so keep this value in a pseudo register.
+
+2020-07-11 Richard Sandiford <richard.sandiford@arm.com>
+
+ PR tree-optimization/96146
+ * value-range.cc (value_range::set): Only decompose POLY_INT_CST
+ bounds to integers for VR_RANGE. Decay to VR_VARYING for anti-ranges
+ involving POLY_INT_CSTs.
+
+2020-07-10 David Edelsohn <dje.gcc@gmail.com>
+
+ PR target/77373
+ * config/rs6000/rs6000.c (rs6000_xcoff_select_section): Only
+ create named section for VAR_DECL or FUNCTION_DECL.
+
+2020-07-10 Joseph Myers <joseph@codesourcery.com>
+
+ * glimits.h [__STDC_VERSION__ > 201710L] (BOOL_MAX, BOOL_WIDTH):
+ New macros.
+
+2020-07-10 Alexander Popov <alex.popov@linux.com>
+
+ * shrink-wrap.c (try_shrink_wrapping): Improve debug output.
+
+2020-07-10 Richard Sandiford <richard.sandiford@arm.com>
+
+ PR middle-end/96151
+ * expr.c (expand_expr_real_2): When reducing bit fields,
+ clear the target if it has a different mode from the expression.
+ (reduce_to_bit_field_precision): Don't do that here. Instead
+ assert that the target already has the correct mode.
+
+2020-07-10 Richard Sandiford <richard.sandiford@arm.com>
+
+ PR target/92789
+ PR target/95726
+ * config/arm/arm.c (arm_attribute_table): Add
+ "Advanced SIMD type".
+ (arm_comp_type_attributes): Check that the "Advanced SIMD type"
+ attributes are equal.
+ * config/arm/arm-builtins.c: Include stringpool.h and
+ attribs.h.
+ (arm_mangle_builtin_vector_type): Use the mangling recorded
+ in the "Advanced SIMD type" attribute.
+ (arm_init_simd_builtin_types): Add an "Advanced SIMD type"
+ attribute to each Advanced SIMD type, using the mangled type
+ as the attribute's single argument.
+
+2020-07-10 Carl Love <cel@us.ibm.com>
+
+ * config/rs6000/vsx.md (VSX_MM): New define_mode_iterator.
+ (VSX_MM4): New define_mode_iterator.
+ (vec_mtvsrbmi): New define_insn.
+ (vec_mtvsr_<mode>): New define_insn.
+ (vec_cntmb_<mode>): New define_insn.
+ (vec_extract_<mode>): New define_insn.
+ (vec_expand_<mode>): New define_insn.
+ (define_c_enum unspec): Add entries UNSPEC_MTVSBM, UNSPEC_VCNTMB,
+ UNSPEC_VEXTRACT, UNSPEC_VEXPAND.
+ * config/rs6000/altivec.h ( vec_genbm, vec_genhm, vec_genwm,
+ vec_gendm, vec_genqm, vec_cntm, vec_expandm, vec_extractm): Add
+ defines.
+ * config/rs6000/rs6000-builtin.def: Add defines BU_P10_2, BU_P10_1.
+ (BU_P10_1): Add definitions for mtvsrbm, mtvsrhm, mtvsrwm,
+ mtvsrdm, mtvsrqm, vexpandmb, vexpandmh, vexpandmw, vexpandmd,
+ vexpandmq, vextractmb, vextractmh, vextractmw, vextractmd, vextractmq.
+ (BU_P10_2): Add definitions for cntmbb, cntmbh, cntmbw, cntmbd.
+ (BU_P10_OVERLOAD_1): Add definitions for mtvsrbm, mtvsrhm,
+ mtvsrwm, mtvsrdm, mtvsrqm, vexpandm, vextractm.
+ (BU_P10_OVERLOAD_2): Add defition for cntm.
+ * config/rs6000/rs6000-call.c (rs6000_expand_binop_builtin): Add
+ checks for CODE_FOR_vec_cntmbb_v16qi, CODE_FOR_vec_cntmb_v8hi,
+ CODE_FOR_vec_cntmb_v4si, CODE_FOR_vec_cntmb_v2di.
+ (altivec_overloaded_builtins): Add overloaded argument entries for
+ P10_BUILTIN_VEC_MTVSRBM, P10_BUILTIN_VEC_MTVSRHM,
+ P10_BUILTIN_VEC_MTVSRWM, P10_BUILTIN_VEC_MTVSRDM,
+ P10_BUILTIN_VEC_MTVSRQM, P10_BUILTIN_VEC_VCNTMBB,
+ P10_BUILTIN_VCNTMBB, P10_BUILTIN_VCNTMBH,
+ P10_BUILTIN_VCNTMBW, P10_BUILTIN_VCNTMBD,
+ P10_BUILTIN_VEXPANDMB, P10_BUILTIN_VEXPANDMH,
+ P10_BUILTIN_VEXPANDMW, P10_BUILTIN_VEXPANDMD,
+ P10_BUILTIN_VEXPANDMQ, P10_BUILTIN_VEXTRACTMB,
+ P10_BUILTIN_VEXTRACTMH, P10_BUILTIN_VEXTRACTMW,
+ P10_BUILTIN_VEXTRACTMD, P10_BUILTIN_VEXTRACTMQ.
+ (builtin_function_type): Add case entries for P10_BUILTIN_MTVSRBM,
+ P10_BUILTIN_MTVSRHM, P10_BUILTIN_MTVSRWM, P10_BUILTIN_MTVSRDM,
+ P10_BUILTIN_MTVSRQM, P10_BUILTIN_VCNTMBB, P10_BUILTIN_VCNTMBH,
+ P10_BUILTIN_VCNTMBW, P10_BUILTIN_VCNTMBD,
+ P10_BUILTIN_VEXPANDMB, P10_BUILTIN_VEXPANDMH,
+ P10_BUILTIN_VEXPANDMW, P10_BUILTIN_VEXPANDMD,
+ P10_BUILTIN_VEXPANDMQ.
+ * config/rs6000/rs6000-builtin.def (altivec_overloaded_builtins): Add
+ entries for MTVSRBM, MTVSRHM, MTVSRWM, MTVSRDM, MTVSRQM, VCNTM,
+ VEXPANDM, VEXTRACTM.
+
+2020-07-10 Bill Seurer, 507-253-3502, seurer@us.ibm.com <(no_default)>
+
+ PR target/95581
+ * config/rs6000/rs6000-call.c: Add new type v16qi_ftype_pcvoid.
+ (altivec_init_builtins) Change __builtin_altivec_mask_for_load to use
+ v16qi_ftype_pcvoid with correct number of parameters.
+
+2020-07-10 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/96144
+ * config/i386/i386-expand.c (ix86_emit_swsqrtsf): Check
+ TARGET_AVX512VL when enabling FMA.
+
+2020-07-10 Andrea Corallo <andrea.corallo@arm.com>
+ Mihail-Calin Ionescu <mihail.ionescu@arm.com>
+ Iain Apreotesei <iain.apreotesei@arm.com>
+
+ * config/arm/arm-protos.h (arm_target_insn_ok_for_lob): New
+ prototype.
+ * config/arm/arm.c (TARGET_INVALID_WITHIN_DOLOOP): Define.
+ (arm_invalid_within_doloop): Implement invalid_within_doloop hook.
+ (arm_target_insn_ok_for_lob): New function.
+ * config/arm/arm.h (TARGET_HAVE_LOB): Define macro.
+ * config/arm/thumb2.md (*doloop_end_internal, doloop_begin)
+ (dls_insn): Add new patterns.
+ (doloop_end): Modify to select LR when LOB is available.
+ * config/arm/unspecs.md: Add new unspec.
+ * doc/sourcebuild.texi (arm_v8_1_lob_ok)
+ (arm_thumb2_ok_no_arm_v8_1_lob): Document new target supports
+ options.
+
+2020-07-10 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96133
+ * gimple-fold.c (fold_array_ctor_reference): Do not
+ recurse to folding a CTOR that does not fully cover the
+ asked for object.
+
+2020-07-10 Cui,Lili <lili.cui@intel.com>
+
+ * common/config/i386/cpuinfo.h
+ (get_intel_cpu): Handle sapphirerapids.
+ * common/config/i386/i386-common.c
+ (processor_names): Add sapphirerapids and alderlake.
+ (processor_alias_table): Add sapphirerapids and alderlake.
+ * common/config/i386/i386-cpuinfo.h
+ (processor_subtypes): Add INTEL_COREI7_ALDERLAKE and
+ INTEL_COREI7_ALDERLAKE.
+ * config.gcc: Add -march=sapphirerapids and alderlake.
+ * config/i386/driver-i386.c
+ (host_detect_local_cpu) Handle sapphirerapids and alderlake.
+ * config/i386/i386-c.c
+ (ix86_target_macros_internal): Handle sapphirerapids and alderlake.
+ * config/i386/i386-options.c
+ (m_SAPPHIRERAPIDS) : Define.
+ (m_ALDERLAKE): Ditto.
+ (m_CORE_AVX512) : Add m_SAPPHIRERAPIDS.
+ (processor_cost_table): Add sapphirerapids and alderlake.
+ (ix86_option_override_internal) Handle PTA_WAITPKG, PTA_ENQCMD,
+ PTA_CLDEMOTE, PTA_SERIALIZE, PTA_TSXLDTRK.
+ * config/i386/i386.h
+ (ix86_size_cost) : Define SAPPHIRERAPIDS and ALDERLAKE.
+ (processor_type) : Add PROCESSOR_SAPPHIRERAPIDS and
+ PROCESSOR_ALDERLAKE.
+ (PTA_ENQCMD): New.
+ (PTA_CLDEMOTE): Ditto.
+ (PTA_SERIALIZE): Ditto.
+ (PTA_TSXLDTRK): New.
+ (PTA_SAPPHIRERAPIDS): Ditto.
+ (PTA_ALDERLAKE): Ditto.
+ (processor_type) : Add PROCESSOR_SAPPHIRERAPIDS and
+ PROCESSOR_ALDERLAKE.
+ * doc/extend.texi: Add sapphirerapids and alderlake.
+ * doc/invoke.texi: Add sapphirerapids and alderlake.
+
+2020-07-10 Martin Liska <mliska@suse.cz>
+
+ * dumpfile.c [profile-report]: Add new profile dump.
+ * dumpfile.h (enum tree_dump_index): Ad TDI_profile_report.
+ * passes.c (pass_manager::dump_profile_report): Change stderr
+ to dump_file.
+
+2020-07-10 Kewen Lin <linkw@linux.ibm.com>
+
+ * tree-vect-loop.c (vect_transform_loop): Use LOOP_VINFO_NITERS which
+ is adjusted by considering peeled prologue for non
+ vect_use_loop_mask_for_alignment_p cases.
+
+2020-07-09 Peter Bergner <bergner@linux.ibm.com>
+
+ PR target/96125
+ * config/rs6000/rs6000-call.c (rs6000_init_builtins): Define the MMA
+ specific types __vector_quad and __vector_pair, and initialize the
+ MMA built-ins if TARGET_EXTRA_BUILTINS is set.
+ (mma_init_builtins): Don't test for mask set in rs6000_builtin_mask.
+ Remove now unneeded mask variable.
+ * config/rs6000/rs6000.c (rs6000_option_override_internal): Add the
+ OPTION_MASK_MMA flag for power10 if not already set.
+
+2020-07-09 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96133
+ * tree-vect-slp.c (vect_build_slp_tree_1): Compare load_p
+ status between stmts.
+
+2020-07-09 H.J. Lu <hjl.tools@gmail.com>
+
+ PR target/88713
+ * config/i386/i386-expand.c (ix86_emit_swsqrtsf): Enable FMA.
+ * config/i386/sse.md (VF_AVX512VL_VF1_128_256): New.
+ (rsqrt<mode>2): Replace VF1_128_256 with VF_AVX512VL_VF1_128_256.
+ (rsqrtv16sf2): Removed.
+
+2020-07-09 Richard Biener <rguenther@suse.de>
+
+ * tree-vectorizer.h (vect_verify_datarefs_alignment): Remove.
+ (vect_slp_analyze_and_verify_instance_alignment): Rename to ...
+ (vect_slp_analyze_instance_alignment): ... this.
+ * tree-vect-data-refs.c (verify_data_ref_alignment): Remove.
+ (vect_verify_datarefs_alignment): Likewise.
+ (vect_enhance_data_refs_alignment): Do not call
+ vect_verify_datarefs_alignment.
+ (vect_slp_analyze_node_alignment): Rename from
+ vect_slp_analyze_and_verify_node_alignment and do not
+ call verify_data_ref_alignment.
+ (vect_slp_analyze_instance_alignment): Rename from
+ vect_slp_analyze_and_verify_instance_alignment.
+ * tree-vect-stmts.c (vectorizable_store): Dump when
+ we vectorize an unaligned access.
+ (vectorizable_load): Likewise.
+ * tree-vect-loop.c (vect_analyze_loop_2): Do not call
+ vect_verify_datarefs_alignment.
+ * tree-vect-slp.c (vect_slp_analyze_bb_1): Adjust.
+
+2020-07-09 Bin Cheng <bin.cheng@linux.alibaba.com>
+
+ PR tree-optimization/95804
+ * tree-loop-distribution.c (break_alias_scc_partitions): Force
+ negative post order to reduction partition.
+
+2020-07-09 Jakub Jelinek <jakub@redhat.com>
+
+ * omp-general.h (struct omp_for_data): Add min_inner_iterations
+ and factor members.
+ * omp-general.c (omp_extract_for_data): Initialize them and remember
+ them in OMP_CLAUSE_COLLAPSE_COUNT if needed and restore from there.
+ * omp-expand.c (expand_omp_for_init_counts): Fix up computation of
+ counts[fd->last_nonrect] if fd->loop.n2 is INTEGER_CST.
+ (expand_omp_for_init_vars): For
+ fd->first_nonrect + 1 == fd->last_nonrect loops with for now
+ INTEGER_CST fd->loop.n2 find quadratic equation roots instead of
+ using fallback method when possible.
+
+2020-07-09 Omar Tahir <omar.tahir@arm.com>
+
+ * ira.c (move_unallocated_pseudos): Zero first_moveable_pseudo and
+ last_moveable_pseudo before returning.
+
+2020-07-09 Szabolcs Nagy <szabolcs.nagy@arm.com>
+
+ * config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Add
+ __ARM_FEATURE_BTI_DEFAULT support.
+
+2020-07-09 Matthew Malcomson <matthew.malcomson@arm.com>
+
+ * config/aarch64/aarch64-protos.h (aarch64_indirect_call_asm):
+ New declaration.
+ * config/aarch64/aarch64.c (aarch64_regno_regclass): Handle new
+ stub registers class.
+ (aarch64_class_max_nregs): Likewise.
+ (aarch64_register_move_cost): Likewise.
+ (aarch64_sls_shared_thunks): Global array to store stub labels.
+ (aarch64_sls_emit_function_stub): New.
+ (aarch64_create_blr_label): New.
+ (aarch64_sls_emit_blr_function_thunks): New.
+ (aarch64_sls_emit_shared_blr_thunks): New.
+ (aarch64_asm_file_end): New.
+ (aarch64_indirect_call_asm): New.
+ (TARGET_ASM_FILE_END): Use aarch64_asm_file_end.
+ (TARGET_ASM_FUNCTION_EPILOGUE): Use
+ aarch64_sls_emit_blr_function_thunks.
+ * config/aarch64/aarch64.h (STB_REGNUM_P): New.
+ (enum reg_class): Add STUB_REGS class.
+ (machine_function): Introduce `call_via` array for
+ function-local stub labels.
+ * config/aarch64/aarch64.md (*call_insn, *call_value_insn): Use
+ aarch64_indirect_call_asm to emit code when hardening BLR
+ instructions.
+ * config/aarch64/constraints.md (Ucr): New constraint
+ representing registers for indirect calls. Is GENERAL_REGS
+ usually, and STUB_REGS when hardening BLR instruction against
+ SLS.
+ * config/aarch64/predicates.md (aarch64_general_reg): STUB_REGS class
+ is also a general register.
+
+2020-07-09 Matthew Malcomson <matthew.malcomson@arm.com>
+
+ * config/aarch64/aarch64-protos.h (aarch64_sls_barrier): New.
+ * config/aarch64/aarch64.c (aarch64_output_casesi): Emit
+ speculation barrier after BR instruction if needs be.
+ (aarch64_trampoline_init): Handle ptr_mode value & adjust size
+ of code copied.
+ (aarch64_sls_barrier): New.
+ (aarch64_asm_trampoline_template): Add needed barriers.
+ * config/aarch64/aarch64.h (AARCH64_ISA_SB): New.
+ (TARGET_SB): New.
+ (TRAMPOLINE_SIZE): Account for barrier.
+ * config/aarch64/aarch64.md (indirect_jump, *casesi_dispatch,
+ simple_return, *do_return, *sibcall_insn, *sibcall_value_insn):
+ Emit barrier if needs be, also account for possible barrier using
+ "sls_length" attribute.
+ (sls_length): New attribute.
+ (length): Determine default using any non-default sls_length
+ value.
+
+2020-07-09 Matthew Malcomson <matthew.malcomson@arm.com>
+
+ * config/aarch64/aarch64-protos.h (aarch64_harden_sls_retbr_p):
+ New.
+ (aarch64_harden_sls_blr_p): New.
+ * config/aarch64/aarch64.c (enum aarch64_sls_hardening_type):
+ New.
+ (aarch64_harden_sls_retbr_p): New.
+ (aarch64_harden_sls_blr_p): New.
+ (aarch64_validate_sls_mitigation): New.
+ (aarch64_override_options): Parse options for SLS mitigation.
+ * config/aarch64/aarch64.opt (-mharden-sls): New option.
+ * doc/invoke.texi: Document new option.
+
+2020-07-09 Kewen Lin <linkw@linux.ibm.com>
+
+ * tree-vect-stmts.c (vectorizable_condition): Prohibit vectorization
+ with partial vectors explicitly excepting for EXTRACT_LAST_REDUCTION
+ or nested-cycle reduction.
+
+2020-07-09 Kewen Lin <linkw@linux.ibm.com>
+
+ * tree-vect-loop.c (vect_analyze_loop_2): Update dumping string
+ for fully masking to be more common.
+
+2020-07-09 Kito Cheng <kito.cheng@sifive.com>
+
+ * config/riscv/riscv.md (get_thread_pointer<mode>): New.
+ (TP_REGNUM): Ditto.
+ * doc/extend.texi (Target Builtins): Add RISC-V built-in section.
+ Document __builtin_thread_pointer.
+
+2020-07-09 Kito Cheng <kito.cheng@sifive.com>
+
+ * config/riscv/riscv-sr.c (riscv_remove_unneeded_save_restore_calls):
+ Abort if any arguments on stack.
+
+2020-07-08 Eric Botcazou <ebotcazou@gcc.gnu.org>
+
+ * gimple-fold.c (gimple_fold_builtin_memory_op): Do not fold if
+ either type has reverse scalar storage order.
+ * tree-ssa-sccvn.c (vn_reference_lookup_3): Do not propagate through
+ a memory copy if either type has reverse scalar storage order.
+
+2020-07-08 Tobias Burnus <tobias@codesourcery.com>
+
+ * config/gcn/mkoffload.c (compile_native, main): Pass -fPIC/-fpic
+ on to the native compiler, if used.
+ * config/nvptx/mkoffload.c (compile_native, main): Likewise.
+
+2020-07-08 Will Schmidt <will_schmidt@vnet.ibm.com>
+
+ * config/rs6000/altivec.h (vec_vmsumudm): New define.
+ * config/rs6000/altivec.md (UNSPEC_VMSUMUDM): New unspec.
+ (altivec_vmsumudm): New define_insn.
+ * config/rs6000/rs6000-builtin.def (altivec_vmsumudm): New BU_ALTIVEC_3
+ entry. (vmsumudm): New BU_ALTIVEC_OVERLOAD_3 entry.
+ * config/rs6000/rs6000-call.c (altivec_overloaded_builtins): Add entries for
+ ALTIVEC_BUILTIN_VMSUMUDM variants of vec_msum.
+ * doc/extend.texi: Add document for vmsumudm behind vmsum.
+
+2020-07-08 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.c (get_group_load_store_type): Pass
+ in the SLP node and the alignment support scheme output.
+ Set that.
+ (get_load_store_type): Likewise.
+ (vectorizable_store): Adjust.
+ (vectorizable_load): Likewise.
+
+2020-07-08 Richard Sandiford <richard.sandiford@arm.com>
+
+ PR middle-end/95694
+ * expr.c (expand_expr_real_2): Get the mode from the type rather
+ than the rtx, and assert that it is consistent with the mode of
+ the rtx (where known). Optimize all constant integers, not just
+ those that can be represented in poly_int64.
+
+2020-07-08 Kewen Lin <linkw@linux.ibm.com>
+
+ * config/rs6000/vsx.md (len_load_v16qi): New define_expand.
+ (len_store_v16qi): Likewise.
+
+2020-07-08 Kewen Lin <linkw@linux.ibm.com>
+
+ * doc/md.texi (len_load_@var{m}): Document.
+ (len_store_@var{m}): Likewise.
+ * internal-fn.c (len_load_direct): New macro.
+ (len_store_direct): Likewise.
+ (expand_len_load_optab_fn): Likewise.
+ (expand_len_store_optab_fn): Likewise.
+ (direct_len_load_optab_supported_p): Likewise.
+ (direct_len_store_optab_supported_p): Likewise.
+ (expand_mask_load_optab_fn): New macro. Original renamed to ...
+ (expand_partial_load_optab_fn): ... here. Add handlings for
+ len_load_optab.
+ (expand_mask_store_optab_fn): New macro. Original renamed to ...
+ (expand_partial_store_optab_fn): ... here. Add handlings for
+ len_store_optab.
+ (internal_load_fn_p): Handle IFN_LEN_LOAD.
+ (internal_store_fn_p): Handle IFN_LEN_STORE.
+ (internal_fn_stored_value_index): Handle IFN_LEN_STORE.
+ * internal-fn.def (LEN_LOAD): New internal function.
+ (LEN_STORE): Likewise.
+ * optabs.def (len_load_optab, len_store_optab): New optab.
+
+2020-07-07 Anton Youdkevitch <anton.youdkevitch@bell-sw.com>
+
+ * config/aarch64/aarch64.c (thunderx2t99_regmove_cost,
+ thunderx2t99_vector_cost): Likewise.
+
+2020-07-07 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-data-refs.c (vect_analyze_data_ref_accesses): Fix
+ group overlap condition to allow negative step DR groups.
+ * tree-vect-stmts.c (get_group_load_store_type): For
+ multi element SLP groups force VMAT_STRIDED_SLP when the step
+ is negative.
+
+2020-07-07 Qian Jianhua <qianjh@cn.fujitsu.com>
+
+ * doc/generic.texi: Fix typo.
+
+2020-07-07 Richard Biener <rguenther@suse.de>
+
+ * lto-streamer-out.c (cmp_symbol_files): Use the computed
+ order map to sort symbols from the same sub-file together.
+ (lto_output): Compute a map of sub-file to an order number
+ it appears in the symbol output array.
+
+2020-07-06 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96075
+ * tree-vect-data-refs.c (vect_compute_data_ref_alignment): Use
+ TYPE_SIZE_UNIT of the vector component type instead of DR_STEP
+ for the misalignment calculation for negative step.
+
+2020-07-06 Roger Sayle <roger@nextmovesoftware.com>
+
+ * config/nvptx/nvptx.md (*vadd_addsi4): New instruction.
+ (*vsub_addsi4): New instruction.
+
+2020-07-06 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/cris.md (movulsr): New peephole2.
+
+2020-07-06 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/sync.md ("cris_atomic_fetch_<atomic_op_name><mode>_1"):
+ Correct gcc_assert of overlapping operands.
+
+2020-07-05 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/cris.c (cris_select_cc_mode): Always return
+ CC_NZmode for matching comparisons. Clarify comments.
+ * config/cris/cris-modes.def: Clarify mode comment.
+ * config/cris/cris.md (plusminus, plusminusumin, plusumin): New
+ code iterators.
+ (addsub, addsubbo, nd): New code iterator attributes.
+ ("*<addsub><su>qihi"): Rename from "*extopqihi". Use code
+ iterator constructs instead of match_operator constructs.
+ ("*<addsubbo><su><nd><mode>si<setnz>"): Similar from
+ "*extop<mode>si<setnz>".
+ ("*add<su>qihi_swap"): Similar from "*addxqihi_swap".
+ ("*<addsubbo><su><nd><mode>si<setnz>_swap"): Similar from
+ "*extop<mode>si<setnz>_swap".
+
+2020-07-05 Hans-Peter Nilsson <hp@axis.com>
+
+ * config/cris/cris.md ("*extopqihi", "*extop<mode>si<setnz>_swap")
+ ("*extop<mode>si<setnz>", "*addxqihi_swap"): Reinstate.
+
+2020-07-03 Eric Botcazou <ebotcazou@gcc.gnu.org>
+
+ * gimple-fold.c (gimple_fold_builtin_memory_op): Fold calls that
+ were initially created for the assignment of a variable-sized
+ object and whose source is now a string constant.
+ * gimple-ssa-store-merging.c (struct merged_store_group): Document
+ STRING_CST for rhs_code field.
+ Add string_concatenation boolean field.
+ (merged_store_group::merged_store_group): Initialize it as well as
+ bit_insertion here.
+ (merged_store_group::do_merge): Set it upon seeing a STRING_CST.
+ Also set bit_insertion here upon seeing a BIT_INSERT_EXPR.
+ (merged_store_group::apply_stores): Clear it for small regions.
+ Do not create a power-of-2-sized buffer if it is still true.
+ And do not set bit_insertion here again.
+ (encode_tree_to_bitpos): Deal with BLKmode for the expression.
+ (merged_store_group::can_be_merged_into): Deal with STRING_CST.
+ (imm_store_chain_info::coalesce_immediate_stores): Set bit_insertion
+ to true after changing MEM_REF stores into BIT_INSERT_EXPR stores.
+ (count_multiple_uses): Return 0 for STRING_CST.
+ (split_group): Do not split the group for a string concatenation.
+ (imm_store_chain_info::output_merged_store): Constify and rename
+ some local variables. Build an array type as destination type
+ for a string concatenation, as well as a zero mask, and call
+ build_string to build the source.
+ (lhs_valid_for_store_merging_p): Return true for VIEW_CONVERT_EXPR.
+ (pass_store_merging::process_store): Accept STRING_CST on the RHS.
+ * gimple.h (gimple_call_alloca_for_var_p): New accessor function.
+ * gimplify.c (gimplify_modify_expr_to_memcpy): Set alloca_for_var.
+ * tree.h (CALL_ALLOCA_FOR_VAR_P): Document it for BUILT_IN_MEMCPY.
+
+2020-07-03 Martin Jambor <mjambor@suse.cz>
+
+ PR ipa/96040
+ * ipa-sra.c (all_callee_accesses_present_p): Do not accept type
+ mismatched accesses.
+
+2020-07-03 Roger Sayle <roger@nextmovesoftware.com>
+
+ * config/nvptx/nvptx.md (popcount<mode>2): New instructions.
+ (mulhishi3, mulsidi3, umulhisi3, umulsidi3): New instructions.
+
+2020-07-03 Martin Liska <mliska@suse.cz>
+ Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
+
+ PR bootstrap/96046
+ * gcov-dump.c (tag_function): Use gcov_position_t
+ type.
+
+2020-07-03 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96037
+ * tree-vect-stmts.c (vect_is_simple_use): Initialize *slp_def.
+
+2020-07-03 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-slp.c (vect_bb_slp_scalar_cost): Cost the
+ original non-pattern stmts, look at the pattern stmt
+ vectorization status.
+
+2020-07-03 Andrew Stubbs <ams@codesourcery.com>
+
+ * config/gcn/gcn-valu.md (fold_left_plus_<mode>): New.
+
+2020-07-03 Richard Biener <rguenther@suse.de>
+
+ * tree-vectorizer.h (vec_info::insert_on_entry): New.
+ (vec_info::insert_seq_on_entry): Likewise.
+ * tree-vectorizer.c (vec_info::insert_on_entry): Implement.
+ (vec_info::insert_seq_on_entry): Likewise.
+ * tree-vect-stmts.c (vect_init_vector_1): Use
+ vec_info::insert_on_entry.
+ (vect_finish_stmt_generation): Set modified bit after
+ adjusting VUSE.
+ * tree-vect-slp.c (vect_create_constant_vectors): Simplify
+ by using vec_info::insert_seq_on_entry and bypassing
+ vec_init_vector.
+ (vect_schedule_slp_instance): Deal with all-constant
+ children later.
+
+2020-07-03 Roger Sayle <roger@nextmovesoftware.com>
+ Tom de Vries <tdevries@suse.de>
+
+ PR target/90932
+ * config/nvptx/nvptx.c (nvptx_vector_alignment): Use tree_to_uhwi
+ to access TYPE_SIZE (type). Return at least the mode's alignment.
+
+2020-07-02 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96028
+ * tree-vect-slp.c (vect_slp_convert_to_external): Make sure
+ we have scalar stmts to use.
+ (vect_slp_analyze_node_operations): When analyzing a child
+ failed try externalizing the parent node.
+
+2020-07-02 Martin Jambor <mjambor@suse.cz>
+
+ PR debug/95343
+ * ipa-param-manipulation.c (ipa_param_adjustments::modify_call): Adjust
+ argument index if necessary.
+
+2020-07-02 Martin Liska <mliska@suse.cz>
+
+ PR middle-end/95830
+ * tree-vect-generic.c (expand_vector_condition): Forward declaration.
+ (expand_vector_comparison): Do not expand a comparison if all
+ uses are consumed by a VEC_COND_EXPR.
+ (expand_vector_operation): Change void return type to bool.
+ (expand_vector_operations_1): Pass dce_ssa_names.
+
+2020-07-02 Ilya Leoshkevich <iii@linux.ibm.com>
+
+ PR bootstrap/95700
+ * system.h (NULL): Redefine to nullptr.
+
+2020-07-02 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/95857
+ * tree-cfg.c (group_case_labels_stmt): When removing an unreachable
+ base_bb, remember all forced and non-local labels on it and later
+ treat those as if they have NULL label_to_block. Formatting fix.
+ Fix a comment typo.
+
+2020-07-02 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/96022
+ * tree-vect-stmts.c (vectorizable_shift): Only use the
+ first vector stmt when extracting the scalar shift amount.
+ * tree-vect-slp.c (vect_build_slp_tree_2): Also build unary
+ nodes with all-scalar children from scalars but not stores.
+ (vect_analyze_slp_instance): Mark the node not failed.
+
+2020-07-02 Felix Yang <felix.yang@huawei.com>
+
+ PR tree-optimization/95961
+ * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Use the
+ number of scalars instead of the number of vectors as an upper bound
+ for the loop saving info about DR in the hash table. Remove unused
+ local variables.
+
+2020-07-02 Jakub Jelinek <jakub@redhat.com>
+
+ * omp-expand.c (expand_omp_for): Diagnose non-rectangular loops with
+ invalid steps - ((m2 - m1) * incr_outer) % incr must be 0 in valid
+ OpenMP non-rectangular loops. Use XALLOCAVEC.
+
+2020-07-02 Martin Liska <mliska@suse.cz>
+
+ PR gcov-profile/95348
+ * coverage.c (read_counts_file): Read only COUNTERS that are
+ not all-zero.
+ * gcov-dump.c (tag_function): Change signature from unsigned to
+ signed integer.
+ (tag_blocks): Likewise.
+ (tag_arcs): Likewise.
+ (tag_lines): Likewise.
+ (tag_counters): Likewise.
+ (tag_summary): Likewise.
+ * gcov.c (read_count_file): Read all non-zero counters
+ sensitively.
+
+2020-07-02 Kito Cheng <kito.cheng@sifive.com>
+
+ * config/riscv/multilib-generator (arch_canonicalize): Handle
+ multi-letter extension.
+ Using underline as separator between different extensions.
+
+2020-07-01 Pip Cet <pipcet@gmail.com>
+
+ * spellcheck.c (test_data): Add problematic strings.
+ (test_metric_conditions): Don't test the triangle inequality
+ condition, which our distance function does not satisfy.
+
+2020-07-01 Omar Tahir <omar.tahir@arm.com>
+
+ * config/aarch64/aarch64.c (aarch64_asm_trampoline_template): Always
+ generate a BTI instruction.
+
+2020-07-01 Jeff Law <law@redhat.com>
+
+ PR tree-optimization/94882
+ * match.pd (x & y) - (x | y) - 1 -> ~(x ^ y): New simplification.
+
+2020-07-01 Jeff Law <law@redhat.com>
+
+ * config/m68k/m68k.c (m68k_output_btst): Drop "register" keyword.
+ (emit_move_sequence, output_iorsi3, output_xorsi3): Likewise.
+
+2020-07-01 Andrea Corallo <andrea.corallo@arm.com>
+
+ * config/aarch64/aarch64-builtins.c (aarch64_builtins): Add enums
+ for 64bits fpsr/fpcr getter setters builtin variants.
+ (aarch64_init_fpsr_fpcr_builtins): New function.
+ (aarch64_general_init_builtins): Modify to make use of the later.
+ (aarch64_expand_fpsr_fpcr_setter): New function.
+ (aarch64_general_expand_builtin): Modify to make use of the later.
+ * config/aarch64/aarch64.md (@aarch64_set_<fpscr_name><GPI:mode>)
+ (@aarch64_get_<fpscr_name><GPI:mode>): New patterns replacing and
+ generalizing 'get_fpcr', 'set_fpsr'.
+ * config/aarch64/iterators.md (GET_FPSCR, SET_FPSCR): New int
+ iterators.
+ (fpscr_name): New int attribute.
+ * doc/extend.texi (__builtin_aarch64_get_fpcr64)
+ (__builtin_aarch64_set_fpcr64, __builtin_aarch64_get_fpsr64)
+ (__builtin_aarch64_set_fpsr64): Add into AArch64 Built-in
+ Functions.
+
+2020-07-01 Martin Liska <mliska@suse.cz>
+
+ * gcov.c (print_usage): Avoid trailing space for -j option.
+
+2020-07-01 Richard Biener <rguenther@suse.de>
+
+ PR tree-optimization/95839
+ * tree-vect-slp.c (vect_slp_tree_uniform_p): Pre-existing
+ vectors are not uniform.
+ (vect_build_slp_tree_1): Handle BIT_FIELD_REFs of
+ vector registers.
+ (vect_build_slp_tree_2): For groups of lane extracts
+ from a vector register generate a permute node
+ with a special child representing the pre-existing vector.
+ (vect_prologue_cost_for_slp): Pre-existing vectors cost nothing.
+ (vect_slp_analyze_node_operations): Use SLP_TREE_LANES.
+ (vectorizable_slp_permutation): Do not generate or cost identity
+ permutes.
+ (vect_schedule_slp_instance): Handle pre-existing vector
+ that are function arguments.
+
+2020-07-01 Richard Biener <rguenther@suse.de>
+
+ * system.h (INCLUDE_ISL): New guarded include.
+ * graphite-dependences.c: Use it.
+ * graphite-isl-ast-to-gimple.c: Likewise.
+ * graphite-optimize-isl.c: Likewise.
+ * graphite-poly.c: Likewise.
+ * graphite-scop-detection.c: Likewise.
+ * graphite-sese-to-poly.c: Likewise.
+ * graphite.c: Likewise.
+ * graphite.h: Drop the includes here.
+
+2020-07-01 Martin Liska <mliska@suse.cz>
+
+ * gcov.c (print_usage): Shorted option description for -j
+ option.
+
+2020-07-01 Martin Liska <mliska@suse.cz>
+
+ * doc/gcov.texi: Rename 2 options.
+ * gcov.c (print_usage): Rename -i,--json-format to
+ -j,--json-format and -j,--human-readable to -H,--human-readable.
+ (process_args): Fix up parsing. Document obsolete options and
+ how are they changed.
+
+2020-07-01 Jeff Law <law@redhat.com>
+
+ * config/pa/pa.c (pa_emit_move_sequence): Drop register keyword.
+ (pa_output_ascii): Likewise.
+
+2020-07-01 Kito Cheng <kito.cheng@sifive.com>
+
+ * common/config/riscv/riscv-common.c (riscv_subset_t): New field
+ added.
+ (riscv_subset_list::parsing_subset_version): Add parameter for
+ indicate explicitly version, and handle explicitly version.
+ (riscv_subset_list::handle_implied_ext): Ditto.
+ (riscv_subset_list::add): Ditto.
+ (riscv_subset_t::riscv_subset_t): Init new field.
+ (riscv_subset_list::to_string): Always output version info if version
+ explicitly specified.
+ (riscv_subset_list::parsing_subset_version): Handle explicitly
+ arch version.
+ (riscv_subset_list::parse_std_ext): Ditto.
+ (riscv_subset_list::parse_multiletter_ext): Ditto.
+
2020-06-30 Richard Sandiford <richard.sandiford@arm.com>
PR target/92789
git://gcc.gnu.org / gcc.git / blobdiff