+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vectorizer.h (vectorizable_induction): Remove
+ gimple **vec_stmt argument.
+ (vectorizable_phi): Likewise.
+ (vectorizable_recurr): Likewise.
+ (vectorizable_early_exit): Likewise.
+ * tree-vect-loop.cc (vectorizable_phi): Likewise and adjust.
+ (vectorizable_recurr): Likewise.
+ (vectorizable_nonlinear_induction): Likewise.
+ (vectorizable_induction): Likewise.
+ * tree-vect-stmts.cc (vectorizable_bswap): Likewise.
+ (vectorizable_call): Likewise.
+ (vectorizable_simd_clone_call): Likewise.
+ (vectorizable_conversion): Likewise.
+ (vectorizable_assignment): Likewise.
+ (vectorizable_shift): Likewise.
+ (vectorizable_operation): Likewise.
+ (vectorizable_store): Likewise.
+ (vectorizable_load): Likewise.
+ (vectorizable_condition): Likewise.
+ (vectorizable_comparison_1): Likewise.
+ (vectorizable_comparison): Likewise.
+ (vectorizable_early_exit): Likewise.
+ (vect_analyze_stmt): Adjust.
+ (vect_transform_stmt): Likewise.
+ * tree-vect-slp.cc (vect_slp_analyze_operations): Adjust.
+ (vectorize_slp_instance_root_stmt): Likewise.
+
+2025-07-24 Andrew Pinski <quic_apinski@quicinc.com>
+
+ * doc/cpp.texi (#ifdef): Correct typo.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_early_exit): Remove non-SLP
+ path.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vectorizer.h (_stmt_vec_info::simd_clone_info): Remove.
+ (STMT_VINFO_SIMD_CLONE_INFO): Likewise.
+ * tree-vectorizer.cc (vec_info::free_stmt_vec_info): Do not
+ release it.
+ * tree-vect-stmts.cc (vectorizable_simd_clone_call): Remove
+ non-SLP path.
+
+2025-07-24 Robin Dapp <rdapp@ventanamicro.com>
+
+ * internal-fn.cc (internal_fn_len_index): Adjust indices for new
+ alias_ptr param.
+ (internal_fn_else_index): Ditto.
+ (internal_fn_mask_index): Ditto.
+ (internal_fn_stored_value_index): Ditto.
+ (internal_fn_alias_ptr_index): Ditto.
+ (internal_fn_offset_index): Ditto.
+ (internal_fn_scale_index): Ditto.
+ (internal_gather_scatter_fn_supported_p): Ditto.
+ * internal-fn.h (internal_fn_alias_ptr_index): Ditto.
+ * optabs-query.cc (supports_vec_gather_load_p): Ditto.
+ * tree-vect-data-refs.cc (vect_check_gather_scatter): Add alias
+ pointer.
+ * tree-vect-patterns.cc (vect_recog_gather_scatter_pattern): Add
+ alias pointer.
+ * tree-vect-slp.cc (vect_get_operand_map): Adjust for alias
+ pointer.
+ * tree-vect-stmts.cc (vect_truncate_gather_scatter_offset): Add
+ alias pointer and misalignment handling.
+ (get_load_store_type): Move from here...
+ (get_group_load_store_type): ...To here.
+ (vectorizable_store): Add alias pointer.
+ (vectorizable_load): Ditto.
+ * tree-vectorizer.h (struct gather_scatter_info): Ditto.
+
+2025-07-24 Robin Dapp <rdapp@ventanamicro.com>
+
+ * config/aarch64/aarch64.cc (aarch64_builtin_support_vector_misalignment):
+ Return true for gather/scatter.
+ * config/arm/arm.cc (arm_builtin_support_vector_misalignment):
+ Ditto.
+ * config/epiphany/epiphany.cc (epiphany_support_vector_misalignment):
+ Ditto.
+ * config/gcn/gcn.cc (gcn_vectorize_support_vector_misalignment):
+ Ditto.
+ * config/loongarch/loongarch.cc (loongarch_builtin_support_vector_misalignment):
+ Ditto.
+ * config/riscv/riscv.cc (riscv_support_vector_misalignment):
+ Add gather/scatter argument.
+ * config/rs6000/rs6000.cc (rs6000_builtin_support_vector_misalignment):
+ Return true for gather/scatter.
+ * config/s390/s390.cc (s390_support_vector_misalignment):
+ Ditto.
+ * doc/tm.texi: Add argument.
+ * target.def: Ditto.
+ * targhooks.cc (default_builtin_support_vector_misalignment):
+ Ditto.
+ * targhooks.h (default_builtin_support_vector_misalignment):
+ Ditto.
+ * tree-vect-data-refs.cc (vect_supportable_dr_alignment):
+ Ditto.
+
+2025-07-24 Robin Dapp <rdapp@ventanamicro.com>
+
+ * tree-vect-slp.cc (GATHER_SCATTER_OFFSET): New define.
+ (vect_get_and_check_slp_defs): Use.
+ * tree-vectorizer.h (GATHER_SCATTER_LEGACY_P): New define.
+ (GATHER_SCATTER_IFN_P): Ditto.
+ (GATHER_SCATTER_EMULATED_P): Ditto.
+ * tree-vect-stmts.cc (vectorizable_store): Use.
+ (vectorizable_load): Use.
+
+2025-07-24 Robin Dapp <rdapp@ventanamicro.com>
+
+ * internal-fn.cc (expand_scatter_store_optab_fn): Use new
+ function.
+ (expand_gather_load_optab_fn): Ditto.
+ (internal_fn_offset_index): Ditto.
+ (internal_fn_scale_index): Ditto.
+ * internal-fn.h (internal_fn_offset_index): New function.
+ (internal_fn_scale_index): Ditto.
+ * tree-vect-data-refs.cc (vect_describe_gather_scatter_call):
+ Use new function.
+
+2025-07-24 Alfie Richards <alfie.richards@arm.com>
+
+ * tree-vect-data-refs.cc (vect_create_data_ref_ptr): Remove unnecessary
+ casts to aggr_ptr_type.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_comparison_1): Remove
+ non-SLP path.
+ (vectorizable_comparison): Likewise.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_condition): Remove
+ non-SLP paths.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_scan_store): Remove
+ non-SLP path and unused parameters.
+ (vectorizable_store): Adjust.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_shift): Remove non-SLP paths.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_assignment): Remove
+ non-SLP paths.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_call): Remove non-SLP path.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-stmts.cc (vectorizable_bswap): Remove non-SLP path.
+
+2025-07-24 Richard Biener <rguenther@suse.de>
+
+ * tree-vect-loop.cc (vectorizable_recurr): Remove non-SLP path.
+
+2025-07-24 Spencer Abson <spencer.abson@arm.com>
+
+ * config/aarch64/aarch64-sve.md (*cond_<optab><mode>_2_relaxed):
+ Extend from SVE_FULL_F_B16B16 to SVE_F_B16B16.
+ (*cond_<optab><mode>_3_relaxed): Likewise.
+ (*cond_<optab><mode>_any_relaxed): Likwise.
+ (*cond_<optab><mode>_any_const_relaxed): Extend from SVE_FULL_F
+ to SVE_F.
+ (*cond_add<mode>_2_const_relaxed): Likewise.
+ (*cond_add<mode>_any_const_relaxed): Likewise.
+ (*cond_sub<mode>_3_const_relaxed): Likewise.
+ (*cond_sub<mode>_const_relaxed): Likewise.
+
+2025-07-24 Spencer Abson <spencer.abson@arm.com>
+
+ * config/aarch64/aarch64-sve.md: (@aarch64_sve_<optab><mode>):
+ Extend from SVE_FULL_F to SVE_F, use aarch64_predicate_operand.
+ (@aarch64_frecpe<mode>): Extend from SVE_FULL_F to SVE_F.
+ (@aarch64_frecps<mode>): Likewise.
+ (div<mode>3): Likewise, use aarch64_sve_fp_pred.
+ * config/aarch64/iterators.md: Add warnings above SVE_FP_UNARY
+ and SVE_FP_BINARY.
+
+2025-07-24 Spencer Abson <spencer.abson@arm.com>
+
+ * config/aarch64/aarch64-sve.md (<optab><mode>3): Extend from
+ SVE_FULL_F to SVE_F, use aarch64_sve_fp_pred.
+ (*post_ra_<sve_fp_op><mode>3): Extend from SVE_FULL_F to SVE_F.
+ (@aarch64_pred_<optab><mode>): Extend from SVE_FULL_F to SVE_F,
+ use aarch64_predicate_operand (ADD/SUB/MUL/MAX/MIN).
+ (split for using unpredicated insns): Move SVE_RELAXED_GP into
+ the pattern, rather than testing for it in the condition.
+ * config/aarch64/aarch64-sve2.md (@aarch64_pred_<optab><mode>):
+ Extend from VNx8BF_ONLY to SVE_BF.
+
+2025-07-24 Pan Li <pan2.li@intel.com>
+
+ * config/riscv/autovec-opt.md (*uavg_floor_vx_<mode>): Rename
+ from...
+ (*<sat_op_v_vdup>_vx_<mode>): Rename to...
+ (*<sat_op_vdup_v>_vx_<mode>): Rename to...
+ * config/riscv/riscv-protos.h (enum insn_flags): Add vxrm
+ RNE, ROD type.
+ (enum insn_type): Add RNE_P, ROD_P type.
+ (expand_vx_binary_vxrm_vec_vec_dup): Add new func decl.
+ (expand_vx_binary_vxrm_vec_dup_vec): Ditto.
+ * config/riscv/riscv-v.cc (get_insn_type_by_vxrm_val): Add
+ helper to get insn type by vxrm value.
+ (expand_vx_binary_vxrm_vec_vec_dup): Add new func impl
+ to expand vec + vec_dup pattern.
+ (expand_vx_binary_vxrm_vec_dup_vec): Ditto but for
+ vec_dup + vec pattern.
+ * config/riscv/vector-iterators.md: Add helper iterator
+ for sat vx combine.
+
2025-07-23 Spencer Abson <spencer.abson@arm.com>
* config/aarch64/aarch64-sve.md (*cond_<optab><mode>_2_relaxed):
+2025-07-24 Steve Baird <baird@adacore.com>
+
+ * exp_aggr.adb (Convert_To_Assignments): Add calls to Ensure_Defined
+ before generating assignments to components that could be
+ associated with a not-yet-defined itype.
+
+2025-07-24 Steve Baird <baird@adacore.com>
+
+ * accessibility.adb (Function_Call_Or_Allocator_Level): Handle the
+ case where a function that has an Extra_Accessibility_Of_Result
+ parameter returns as its result a call to another such function.
+ In that case, the extra parameter should be passed along.
+ (Check_Return_Construct_Accessibility): Replace a warning about an
+ inevitable failure of a dynamic check with a legality-rule-violation
+ error message; adjust the text of the message accordingly.
+ * exp_ch6.ads (Apply_Access_Discrims_Accessibility_Check): New
+ procedure, following example of the existing
+ Apply_CW_Accessibility procedure.
+ * exp_ch6.adb (Apply_Access_Discrims_Accessibility_Check): body
+ for new procedure.
+ (Expand_Simple_Function_Return): Add call to new
+ Apply_Access_Discrims_Accessibility_Check procedure.
+ * exp_ch3.adb (Make_Allocator_For_Return): Add call to new
+ Apply_Access_Discrims_Accessibility_Check procedure.
+
+2025-07-24 Tonu Naks <naks@adacore.com>
+
+ * doc/gnat_rm/standard_and_implementation_defined_restrictions.rst:
+ clarify parameter description.
+ * gnat_rm.texi: Regenerate.
+
2025-07-22 Gary Dismukes <dismukes@adacore.com>
* sem_ch8.adb (End_Use_Type): Add a test for there not being an earlier
+2025-07-24 Robert Dubner <rdubner@symas.com>
+
+ PR cobol/119231
+ * gcobolspec.cc: (lang_specific_driver): Pass OPT_static through.
+ Handle -static and -static-libgcobol properly.
+
2025-07-23 Robert Dubner <rdubner@symas.com>
* genapi.cc (leave_procedure): Adjust location_t for PERFORM.
+2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ PR c++/117294
+ PR c++/113854
+ * call.cc (implicit_conversion_error): Hide label when printing
+ a stub object.
+ (convert_like_internal): Likewise, and nest candidate
+ diagnostics.
+ * constexpr.cc (diagnose_failing_condition): Nest diagnostics,
+ attempt to provide more helpful diagnostics for traits.
+ * constraint.cc (satisfy_atom): Pass result before constant
+ evaluation to diagnose_atomic_constraint.
+ (diagnose_trait_expr): Adjust diagnostics for clarity and
+ detail.
+ (maybe_diagnose_standard_trait): New function.
+ (diagnose_atomic_constraint): Attempt to provide more helpful
+ diagnostics for more traits.
+ * cp-tree.h (explain_not_noexcept): Declare new function.
+ (is_trivially_xible): Add parameter.
+ (is_nothrow_xible): Likewise.
+ (is_xible): Likewise.
+ (is_convertible): Likewise.
+ (is_nothrow_convertible): Likewise.
+ (diagnose_trait_expr): Declare new function.
+ (maybe_diagnose_standard_trait): Declare new function.
+ * error.cc (dump_type) <case TREE_VEC>: Handle trait types.
+ * except.cc (explain_not_noexcept): New function.
+ * method.cc (build_trait_object): Add complain parameter.
+ (build_invoke): Propagate complain parameter.
+ (assignable_expr): Add explain parameter to show diagnostics.
+ (constructible_expr): Likewise.
+ (destructible_expr): Likewise.
+ (is_xible_helper): Replace trivial flag with explain flag,
+ add diagnostics.
+ (is_trivially_xible): New explain flag.
+ (is_nothrow_xible): Likewise.
+ (is_xible): Likewise.
+ (is_convertible_helper): Add complain flag.
+ (is_convertible): New explain flag.
+ (is_nothrow_convertible): Likewise.
+ * typeck.cc (cp_build_function_call_vec): Add handling for stub
+ objects.
+ (convert_arguments): Always return -1 on error.
+ * typeck2.cc (cxx_readonly_error): Add handling for stub
+ objects.
+
+2025-07-24 Jason Merrill <jason@redhat.com>
+
+ * pt.cc (tsubst_lambda_expr): Revert r9-5971 change.
+
+2025-07-24 Jason Merrill <jason@redhat.com>
+
+ PR c++/114632
+ PR c++/101233
+ * lambda.cc (maybe_add_lambda_conv_op): Not for xobj lambda.
+ * pt.cc (tsubst_function_decl): Add cp_evaluated.
+ (alias_ctad_tweaks): Revert PR101233 fix.
+
+2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ PR c++/120412
+ * module.cc (trees_out::core_vals): Write TU_LOCAL_ENTITY bits.
+ (trees_in::core_vals): Read it.
+ (trees_in::tree_node): Handle TU_LOCAL_ENTITY typedefs.
+
2025-07-23 Patrick Palka <ppalka@redhat.com>
PR c++/121179
+2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ PR c++/117294
+ PR c++/113854
+ * g++.dg/cpp2a/concepts-traits3.C: Adjust diagnostics.
+ * g++.dg/cpp2a/concepts-traits4.C: New test.
+ * g++.dg/diagnostic/static_assert5.C: New test.
+ * g++.dg/ext/has_virtual_destructor2.C: New test.
+ * g++.dg/ext/is_assignable2.C: New test.
+ * g++.dg/ext/is_constructible9.C: New test.
+ * g++.dg/ext/is_convertible7.C: New test.
+ * g++.dg/ext/is_destructible3.C: New test.
+ * g++.dg/ext/is_invocable6.C: New test.
+ * g++.dg/ext/is_virtual_base_of_diagnostic2.C: New test.
+
+2025-07-24 Jason Merrill <jason@redhat.com>
+
+ PR c++/114632
+ PR c++/101233
+ * g++.dg/cpp23/explicit-obj-lambda18.C: New test.
+ * g++.dg/cpp23/static-operator-call7.C: New test.
+
+2025-07-24 Robert Dubner <rdubner@symas.com>
+
+ * cobol.dg/group2/_-static__compilation.cob: Modify for -static warning.
+ * cobol.dg/group2/_-static__compilation.out: Removed.
+
+2025-07-24 Robin Dapp <rdapp@ventanamicro.com>
+
+ * lib/target-supports.exp: Fix misalignment check.
+
+2025-07-24 Spencer Abson <spencer.abson@arm.com>
+
+ * g++.target/aarch64/sve/unpacked_cond_binary_bf16_1.C: New test.
+ * gcc.target/aarch64/sve/unpacked_cond_builtin_fmax_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_cond_builtin_fmin_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_cond_fadd_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_cond_fdiv_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_cond_fmaxnm_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_cond_fminnm_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_cond_fmul_1.c: Likewise..
+ * gcc.target/aarch64/sve/unpacked_cond_fsubr_1.c: Likewise.
+
+2025-07-24 Spencer Abson <spencer.abson@arm.com>
+
+ * gcc.target/aarch64/sve/unpacked_fdiv_1.c: New test.
+ * gcc.target/aarch64/sve/unpacked_fdiv_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fdiv_3.c: Likewise.
+
+2025-07-24 Spencer Abson <spencer.abson@arm.com>
+
+ * g++.target/aarch64/sve/unpacked_binary_bf16_1.C: New test.
+ * g++.target/aarch64/sve/unpacked_binary_bf16_2.C: Likewise.
+ * gcc.target/aarch64/sve/unpacked_builtin_fmax_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_builtin_fmax_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_builtin_fmin_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_builtin_fmin_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fadd_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fadd_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fmaxnm_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fmaxnm_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fminnm_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fminnm_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fmul_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fmul_2.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fsubr_1.c: Likewise.
+ * gcc.target/aarch64/sve/unpacked_fsubr_2.c: Likewise.
+
+2025-07-24 Jeevitha Palanisamy <jeevitha@linux.ibm.com>
+
+ PR testsuite/119382
+ * gcc.target/powerpc/vsx-builtin-7.c: Add '-fno-ipa-icf' to dg-options.
+
+2025-07-24 Pan Li <pan2.li@intel.com>
+
+ * gcc.target/riscv/rvv/autovec/vx_vf/vx-fixed-vxrm-1-u16.c: New test.
+ * gcc.target/riscv/rvv/autovec/vx_vf/vx-fixed-vxrm-1-u32.c: New test.
+ * gcc.target/riscv/rvv/autovec/vx_vf/vx-fixed-vxrm-1-u64.c: New test.
+ * gcc.target/riscv/rvv/autovec/vx_vf/vx-fixed-vxrm-1-u8.c: New test.
+ * gcc.target/riscv/rvv/autovec/vx_vf/vx-fixed-vxrm.h: New test.
+
+2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ PR c++/120412
+ * g++.dg/modules/internal-14_a.C: New test.
+ * g++.dg/modules/internal-14_b.C: New test.
+ * g++.dg/modules/internal-14_c.C: New test.
+
2025-07-23 Spencer Abson <spencer.abson@arm.com>
* gcc.target/aarch64/sve/unpacked_cond_fabs_1.c: New test.
+2025-07-24 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ PR c++/117294
+ PR c++/113854
+ * testsuite/20_util/any/misc/any_cast_neg.cc: Adjust
+ diagnostics.
+ * testsuite/20_util/expected/illformed_neg.cc: Likewise.
+ * testsuite/20_util/optional/monadic/or_else_neg.cc: Likewise.
+ * testsuite/23_containers/array/creation/3_neg.cc: Likewise.
+ * testsuite/24_iterators/range_generators/lwg3900.cc: Likewise.
+ * testsuite/29_atomics/atomic/requirements/types_neg.cc:
+ Likewise.
+ * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc:
+ Likewise.
+ * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
+ Likewise.
+ * testsuite/std/format/arguments/args_neg.cc: Likewise.
+ * testsuite/std/format/string_neg.cc: Likewise.
+
+2025-07-24 Tomasz Kamiński <tkaminsk@redhat.com>
+
+ PR libstdc++/104874
+ * testsuite/24_iterators/random_access/string_vector_iterators.cc:
+ Reworked.
+
+2025-07-24 Tomasz Kamiński <tkaminsk@redhat.com>
+
+ * testsuite/21_strings/basic_string/cons/from_range.cc: Replace
+ test_constexpr with test_ranges inside static_assert.
+ * testsuite/21_strings/basic_string/modifiers/append/append_range.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/modifiers/assign/assign_range.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/modifiers/insert/insert_range.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/modifiers/replace/replace_with_range.cc:
+ Likewise.
+ * testsuite/23_containers/vector/bool/cons/from_range.cc: Likewise.
+ * testsuite/23_containers/vector/bool/modifiers/assign/assign_range.cc:
+ Likewise.
+ * testsuite/23_containers/vector/bool/modifiers/insert/insert_range.cc:
+ Likewise.
+ * testsuite/23_containers/vector/cons/from_range.cc: Likewise.
+ * testsuite/23_containers/vector/modifiers/assign/assign_range.cc:
+ Likewise.
+ * testsuite/23_containers/vector/modifiers/insert/insert_range.cc:
+ Likewise.
+ * testsuite/23_containers/vector/bool/modifiers/insert/append_range.cc:
+ Run full test_ranges instead of span-only in test_constexpr.
+ * testsuite/23_containers/vector/modifiers/append_range.cc:
+ Replace test_constexpr with calls to test_ranges and test_overlapping.
+ * testsuite/util/testsuite_allocator.h (__gnu_test::SimpleAllocator):
+ Declared member functions as constexpr.
+
2025-07-23 Luc Grosheintz <luc.grosheintz@gmail.com>
* testsuite/23_containers/mdspan/accessors/default.cc: Delete.
projects / thirdparty / gcc.git / commitdiff
