This allows us to invoke the rust testsuite.

	* Makefile.def: Add Rust language.
	* Makefile.in: Regenerate via autogen.

This is similar to the compile/torture/*.rs test cases, but all of these are
dg-execute testcases. They are compiled, linked and executed by default. These
testcases are also compiled with the matrix of torture options.

The only caveat here is that gccrs does not currently support the main shim,
so we have a C-style main function here returning zero which is not proper Rust
code.

	gcc/testsuite/
	* rust/execute/torture/block_expr1.rs: New.
	* rust/execute/torture/builtin_macro_cfg.rs: New.
	* rust/execute/torture/builtin_macro_concat.rs: New.
	* rust/execute/torture/builtin_macro_env.rs: New.
	* rust/execute/torture/builtin_macro_include_bytes.rs: New.
	* rust/execute/torture/builtin_macro_include_str.rs: New.
	* rust/execute/torture/builtin_macro_line.rs: New.
	* rust/execute/torture/builtin_macros1.rs: New.
	* rust/execute/torture/builtin_macros3.rs: New.
	* rust/execute/torture/cfg1.rs: New.
	* rust/execute/torture/cfg2.rs: New.
	* rust/execute/torture/cfg3.rs: New.
	* rust/execute/torture/cfg4.rs: New.
	* rust/execute/torture/cfg5.rs: New.
	* rust/execute/torture/coercion1.rs: New.
	* rust/execute/torture/coercion2.rs: New.
	* rust/execute/torture/const_fold1.rs: New.
	* rust/execute/torture/const_fold2.rs: New.
	* rust/execute/torture/copy_nonoverlapping1.rs: New.
	* rust/execute/torture/empty_main.rs: New.
	* rust/execute/torture/execute.exp: New.
	* rust/execute/torture/exit_error.rs: New.
	* rust/execute/torture/extern_mod4.rs: New.
	* rust/execute/torture/func1.rs: New.
	* rust/execute/torture/helloworld1.rs: New.
	* rust/execute/torture/helloworld2.rs: New.
	* rust/execute/torture/include.txt: New.
	* rust/execute/torture/index1.rs: New.
	* rust/execute/torture/issue-1120.rs: New.
	* rust/execute/torture/issue-1133.rs: New.
	* rust/execute/torture/issue-1198.rs: New.
	* rust/execute/torture/issue-1231.rs: New.
	* rust/execute/torture/issue-1232.rs: New.
	* rust/execute/torture/issue-1249.rs: New.
	* rust/execute/torture/issue-1436.rs: New.
	* rust/execute/torture/issue-1496.rs: New.
	* rust/execute/torture/issue-647.rs: New.
	* rust/execute/torture/issue-845.rs: New.
	* rust/execute/torture/issue-851.rs: New.
	* rust/execute/torture/issue-858.rs: New.
	* rust/execute/torture/issue-976.rs: New.
	* rust/execute/torture/issue-995.rs: New.
	* rust/execute/torture/macros1.rs: New.
	* rust/execute/torture/macros10.rs: New.
	* rust/execute/torture/macros11.rs: New.
	* rust/execute/torture/macros12.rs: New.
	* rust/execute/torture/macros13.rs: New.
	* rust/execute/torture/macros14.rs: New.
	* rust/execute/torture/macros16.rs: New.
	* rust/execute/torture/macros17.rs: New.
	* rust/execute/torture/macros18.rs: New.
	* rust/execute/torture/macros19.rs: New.
	* rust/execute/torture/macros2.rs: New.
	* rust/execute/torture/macros20.rs: New.
	* rust/execute/torture/macros21.rs: New.
	* rust/execute/torture/macros22.rs: New.
	* rust/execute/torture/macros23.rs: New.
	* rust/execute/torture/macros24.rs: New.
	* rust/execute/torture/macros25.rs: New.
	* rust/execute/torture/macros26.rs: New.
	* rust/execute/torture/macros27.rs: New.
	* rust/execute/torture/macros28.rs: New.
	* rust/execute/torture/macros29.rs: New.
	* rust/execute/torture/macros3.rs: New.
	* rust/execute/torture/macros30.rs: New.
	* rust/execute/torture/macros31.rs: New.
	* rust/execute/torture/macros4.rs: New.
	* rust/execute/torture/macros5.rs: New.
	* rust/execute/torture/macros6.rs: New.
	* rust/execute/torture/macros7.rs: New.
	* rust/execute/torture/macros8.rs: New.
	* rust/execute/torture/macros9.rs: New.
	* rust/execute/torture/match1.rs: New.
	* rust/execute/torture/match2.rs: New.
	* rust/execute/torture/match3.rs: New.
	* rust/execute/torture/match_bool1.rs: New.
	* rust/execute/torture/match_byte1.rs: New.
	* rust/execute/torture/match_char1.rs: New.
	* rust/execute/torture/match_int1.rs: New.
	* rust/execute/torture/match_loop1.rs: New.
	* rust/execute/torture/match_range1.rs: New.
	* rust/execute/torture/match_range2.rs: New.
	* rust/execute/torture/match_tuple1.rs: New.
	* rust/execute/torture/method1.rs: New.
	* rust/execute/torture/method2.rs: New.
	* rust/execute/torture/method3.rs: New.
	* rust/execute/torture/method4.rs: New.
	* rust/execute/torture/mod1.rs: New.
	* rust/execute/torture/modules/mod.rs: New.
	* rust/execute/torture/operator_overload_1.rs: New.
	* rust/execute/torture/operator_overload_10.rs: New.
	* rust/execute/torture/operator_overload_11.rs: New.
	* rust/execute/torture/operator_overload_12.rs: New.
	* rust/execute/torture/operator_overload_2.rs: New.
	* rust/execute/torture/operator_overload_3.rs: New.
	* rust/execute/torture/operator_overload_4.rs: New.
	* rust/execute/torture/operator_overload_5.rs: New.
	* rust/execute/torture/operator_overload_6.rs: New.
	* rust/execute/torture/operator_overload_7.rs: New.
	* rust/execute/torture/operator_overload_8.rs: New.
	* rust/execute/torture/operator_overload_9.rs: New.
	* rust/execute/torture/slice-magic.rs: New.
	* rust/execute/torture/slice-magic2.rs: New.
	* rust/execute/torture/slice1.rs: New.
	* rust/execute/torture/str-layout1.rs: New.
	* rust/execute/torture/str-zero.rs: New.
	* rust/execute/torture/trait1.rs: New.
	* rust/execute/torture/trait10.rs: New.
	* rust/execute/torture/trait11.rs: New.
	* rust/execute/torture/trait12.rs: New.
	* rust/execute/torture/trait13.rs: New.
	* rust/execute/torture/trait2.rs: New.
	* rust/execute/torture/trait3.rs: New.
	* rust/execute/torture/trait4.rs: New.
	* rust/execute/torture/trait5.rs: New.
	* rust/execute/torture/trait6.rs: New.
	* rust/execute/torture/trait7.rs: New.
	* rust/execute/torture/trait8.rs: New.
	* rust/execute/torture/trait9.rs: New.
	* rust/execute/torture/transmute1.rs: New.
	* rust/execute/torture/wrapping_op1.rs: New.
	* rust/execute/torture/wrapping_op2.rs: New.
	* rust/execute/xfail/macro1.rs: New.

Co-authored-by: Arthur Cohen <arthur.cohen@embecosm.com>
Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>
Co-authored-by: Mark Wielaard <mark@klomp.org>
Co-authored-by: Marc Poulhiès <dkm@kataplop.net>

This suite of tests has two sections: compile/*.rs and compile/torture/*.rs.
The first section is comprised entirely of dg-compile tests, containing a
mixture of dg-warning and dg-error annotations and some with no annotations,
ensuring the creation of resulting asm output. The second section is the same,
but has tests which are ran with the full torture options, for coverage of test
cases that may have an issue with a specific optimization level.

	gcc/testsuite/
	* rust/compile/abi-options1.rs: New.
	* rust/compile/array3.rs: New.
	* rust/compile/array_empty_list.rs: New.
	* rust/compile/arrays1.rs: New.
	* rust/compile/arrays2.rs: New.
	* rust/compile/attr-mismatch-crate-name.rs: New.
	* rust/compile/attr_cold.rs: New.
	* rust/compile/attr_deprecated.rs: New.
	* rust/compile/attr_deprecated_2.rs: New.
	* rust/compile/bad-crate-name.rs: New.
	* rust/compile/bad=file-name.rs: New.
	* rust/compile/bad_as_bool_char.rs: New.
	* rust/compile/bad_file_name.txt.rs: New.
	* rust/compile/bad_inner_doc.rs: New.
	* rust/compile/bad_pub_enumitems.rs: New.
	* rust/compile/bad_stmt_enums.rs: New.
	* rust/compile/bad_toplevel_enums.rs: New.
	* rust/compile/bad_tuple_index.rs: New.
	* rust/compile/bad_type1.rs: New.
	* rust/compile/bad_type2.rs: New.
	* rust/compile/break1.rs: New.
	* rust/compile/break2.rs: New.
	* rust/compile/builtin_macro_compile_error.rs: New.
	* rust/compile/builtin_macro_concat.rs: New.
	* rust/compile/builtin_macro_env.rs: New.
	* rust/compile/builtin_macro_include_bytes.rs: New.
	* rust/compile/builtin_macro_include_str.rs: New.
	* rust/compile/builtin_macro_not_found.rs: New.
	* rust/compile/bytecharstring.rs: New.
	* rust/compile/canonical_paths1.rs: New.
	* rust/compile/cast1.rs: New.
	* rust/compile/cfg1.rs: New.
	* rust/compile/cfg2.rs: New.
	* rust/compile/cfg3.rs: New.
	* rust/compile/cfg4.rs: New.
	* rust/compile/cfg5.rs: New.
	* rust/compile/compile.exp: New.
	* rust/compile/complex-path1.rs: New.
	* rust/compile/const-issue1440.rs: New.
	* rust/compile/const1.rs: New.
	* rust/compile/const2.rs: New.
	* rust/compile/const3.rs: New.
	* rust/compile/const_generics_1.rs: New.
	* rust/compile/const_generics_2.rs: New.
	* rust/compile/const_generics_3.rs: New.
	* rust/compile/const_generics_4.rs: New.
	* rust/compile/const_generics_5.rs: New.
	* rust/compile/const_generics_6.rs: New.
	* rust/compile/continue1.rs: New.
	* rust/compile/deadcode_err1.rs: New.
	* rust/compile/deadcode_err2.rs: New.
	* rust/compile/debug-diagnostics-default.rs: New.
	* rust/compile/debug-diagnostics-off.rs: New.
	* rust/compile/debug-diagnostics-on.rs: New.
	* rust/compile/doc_isolated_cr_block_comment.rs: New.
	* rust/compile/doc_isolated_cr_inner_block_comment.rs: New.
	* rust/compile/doc_isolated_cr_inner_line_comment.rs: New.
	* rust/compile/doc_isolated_cr_line_comment.rs: New.
	* rust/compile/dup_fields.rs: New.
	* rust/compile/empty_comment_before_match.rs: New.
	* rust/compile/expected_type_args2.rs: New.
	* rust/compile/expected_type_args3.rs: New.
	* rust/compile/func1.rs: New.
	* rust/compile/func2.rs: New.
	* rust/compile/func3.rs: New.
	* rust/compile/func4.rs: New.
	* rust/compile/func5.rs: New.
	* rust/compile/generic-default1.rs: New.
	* rust/compile/generics1.rs: New.
	* rust/compile/generics10.rs: New.
	* rust/compile/generics11.rs: New.
	* rust/compile/generics12.rs: New.
	* rust/compile/generics13.rs: New.
	* rust/compile/generics2.rs: New.
	* rust/compile/generics3.rs: New.
	* rust/compile/generics4.rs: New.
	* rust/compile/generics5.rs: New.
	* rust/compile/generics6.rs: New.
	* rust/compile/generics7.rs: New.
	* rust/compile/generics8.rs: New.
	* rust/compile/generics9.rs: New.
	* rust/compile/implicit_returns_err1.rs: New.
	* rust/compile/implicit_returns_err2.rs: New.
	* rust/compile/implicit_returns_err3.rs: New.
	* rust/compile/implicit_returns_err4.rs: New.
	* rust/compile/infer-crate-name.rs: New.
	* rust/compile/inline_1.rs: New.
	* rust/compile/inline_2.rs: New.
	* rust/compile/issue-1005.rs: New.
	* rust/compile/issue-1019.rs: New.
	* rust/compile/issue-1023.rs: New.
	* rust/compile/issue-1031.rs: New.
	* rust/compile/issue-1034.rs: New.
	* rust/compile/issue-1089.rs: New.
	* rust/compile/issue-1128.rs: New.
	* rust/compile/issue-1129-1.rs: New.
	* rust/compile/issue-1129-2.rs: New.
	* rust/compile/issue-1130.rs: New.
	* rust/compile/issue-1131.rs: New.
	* rust/compile/issue-1152.rs: New.
	* rust/compile/issue-1165.rs: New.
	* rust/compile/issue-1173.rs: New.
	* rust/compile/issue-1226.rs: New.
	* rust/compile/issue-1234.rs: New.
	* rust/compile/issue-1235.rs: New.
	* rust/compile/issue-1237.rs: New.
	* rust/compile/issue-1251.rs: New.
	* rust/compile/issue-1271.rs: New.
	* rust/compile/issue-1289.rs: New.
	* rust/compile/issue-1323-1.rs: New.
	* rust/compile/issue-1323-2.rs: New.
	* rust/compile/issue-1383.rs: New.
	* rust/compile/issue-1393.rs: New.
	* rust/compile/issue-1447.rs: New.
	* rust/compile/issue-407-2.rs: New.
	* rust/compile/issue-407.rs: New.
	* rust/compile/issue-557.rs: New.
	* rust/compile/issue-635-1.rs: New.
	* rust/compile/issue-635-2.rs: New.
	* rust/compile/lookup_err1.rs: New.
	* rust/compile/macro-issue1053-2.rs: New.
	* rust/compile/macro-issue1053.rs: New.
	* rust/compile/macro-issue1224.rs: New.
	* rust/compile/macro-issue1233.rs: New.
	* rust/compile/macro-issue1395-2.rs: New.
	* rust/compile/macro-issue1395.rs: New.
	* rust/compile/macro-issue1400-2.rs: New.
	* rust/compile/macro-issue1400.rs: New.
	* rust/compile/macro1.rs: New.
	* rust/compile/macro10.rs: New.
	* rust/compile/macro11.rs: New.
	* rust/compile/macro12.rs: New.
	* rust/compile/macro13.rs: New.
	* rust/compile/macro14.rs: New.
	* rust/compile/macro15.rs: New.
	* rust/compile/macro16.rs: New.
	* rust/compile/macro17.rs: New.
	* rust/compile/macro18.rs: New.
	* rust/compile/macro19.rs: New.
	* rust/compile/macro2.rs: New.
	* rust/compile/macro20.rs: New.
	* rust/compile/macro21.rs: New.
	* rust/compile/macro22.rs: New.
	* rust/compile/macro23.rs: New.
	* rust/compile/macro25.rs: New.
	* rust/compile/macro26.rs: New.
	* rust/compile/macro27.rs: New.
	* rust/compile/macro28.rs: New.
	* rust/compile/macro29.rs: New.
	* rust/compile/macro3.rs: New.
	* rust/compile/macro30.rs: New.
	* rust/compile/macro31.rs: New.
	* rust/compile/macro32.rs: New.
	* rust/compile/macro33.rs: New.
	* rust/compile/macro34.rs: New.
	* rust/compile/macro35.rs: New.
	* rust/compile/macro36.rs: New.
	* rust/compile/macro37.rs: New.
	* rust/compile/macro38.rs: New.
	* rust/compile/macro39.rs: New.
	* rust/compile/macro4.rs: New.
	* rust/compile/macro40.rs: New.
	* rust/compile/macro41.rs: New.
	* rust/compile/macro42.rs: New.
	* rust/compile/macro5.rs: New.
	* rust/compile/macro6.rs: New.
	* rust/compile/macro7.rs: New.
	* rust/compile/macro8.rs: New.
	* rust/compile/macro9.rs: New.
	* rust/compile/macro_return.rs: New.
	* rust/compile/match1.rs: New.
	* rust/compile/match2.rs: New.
	* rust/compile/match3.rs: New.
	* rust/compile/match4.rs: New.
	* rust/compile/match5.rs: New.
	* rust/compile/match6.rs: New.
	* rust/compile/match7.rs: New.
	* rust/compile/method1.rs: New.
	* rust/compile/method2.rs: New.
	* rust/compile/mismatch-crate-name.rs: New.
	* rust/compile/missing_middle/both_path.rs: New.
	* rust/compile/missing_middle/explicit.not.rs: New.
	* rust/compile/missing_middle/inner_path.rs: New.
	* rust/compile/missing_middle/other.rs: New.
	* rust/compile/missing_middle/outer_path.rs: New.
	* rust/compile/missing_middle/sub/mod.rs: New.
	* rust/compile/missing_return1.rs: New.
	* rust/compile/mod_missing_middle.rs: New.
	* rust/compile/never_type_err1.rs: New.
	* rust/compile/privacy1.rs: New.
	* rust/compile/privacy2.rs: New.
	* rust/compile/privacy3.rs: New.
	* rust/compile/privacy4.rs: New.
	* rust/compile/privacy5.rs: New.
	* rust/compile/privacy6.rs: New.
	* rust/compile/pub_restricted_1.rs: New.
	* rust/compile/pub_restricted_2.rs: New.
	* rust/compile/pub_restricted_3.rs: New.
	* rust/compile/raw_identifiers_bad_keywords.rs: New.
	* rust/compile/raw_identifiers_underscore.rs: New.
	* rust/compile/redef_error1.rs: New.
	* rust/compile/redef_error2.rs: New.
	* rust/compile/redef_error3.rs: New.
	* rust/compile/redef_error4.rs: New.
	* rust/compile/redef_error5.rs: New.
	* rust/compile/redef_error6.rs: New.
	* rust/compile/reference1.rs: New.
	* rust/compile/self-path1.rs: New.
	* rust/compile/self-path2.rs: New.
	* rust/compile/shadow1.rs: New.
	* rust/compile/specify-crate-name.rs: New.
	* rust/compile/static_var1.rs: New.
	* rust/compile/stmt_with_block_err1.rs: New.
	* rust/compile/struct_align1.rs: New.
	* rust/compile/struct_align2.rs: New.
	* rust/compile/struct_init1.rs: New.
	* rust/compile/struct_pack1.rs: New.
	* rust/compile/struct_pack2.rs: New.
	* rust/compile/syntax-only.rs: New.
	* rust/compile/test_mod.rs: New.
	* rust/compile/torture/all_doc_comment_line_blocks.rs: New.
	* rust/compile/torture/all_doc_comment_line_blocks_crlf.rs: New.
	* rust/compile/torture/arithmetic_expressions1.rs: New.
	* rust/compile/torture/array_const_fold_1.rs: New.
	* rust/compile/torture/array_const_fold_2.rs: New.
	* rust/compile/torture/array_function.rs: New.
	* rust/compile/torture/array_type_infer.rs: New.
	* rust/compile/torture/array_zero_length.rs: New.
	* rust/compile/torture/arrays1.rs: New.
	* rust/compile/torture/arrays2.rs: New.
	* rust/compile/torture/arrays3.rs: New.
	* rust/compile/torture/arrays4.rs: New.
	* rust/compile/torture/arrays5.rs: New.
	* rust/compile/torture/arrays6.rs: New.
	* rust/compile/torture/arrays_index1.rs: New.
	* rust/compile/torture/arrays_index2.rs: New.
	* rust/compile/torture/arrays_index3.rs: New.
	* rust/compile/torture/as_bool_char.rs: New.
	* rust/compile/torture/associated_types1.rs: New.
	* rust/compile/torture/autoderef1.rs: New.
	* rust/compile/torture/block_expr1.rs: New.
	* rust/compile/torture/block_expr2.rs: New.
	* rust/compile/torture/block_expr3.rs: New.
	* rust/compile/torture/block_expr4.rs: New.
	* rust/compile/torture/block_expr5.rs: New.
	* rust/compile/torture/block_expr_parser_bug.rs: New.
	* rust/compile/torture/bom.rs: New.
	* rust/compile/torture/bom_comment.rs: New.
	* rust/compile/torture/bom_shebang.rs: New.
	* rust/compile/torture/bom_whitespace.rs: New.
	* rust/compile/torture/bools_eq.rs: New.
	* rust/compile/torture/borrow1.rs: New.
	* rust/compile/torture/borrow_function.rs: New.
	* rust/compile/torture/break_function.rs: New.
	* rust/compile/torture/byte_char_str.rs: New.
	* rust/compile/torture/byte_str.rs: New.
	* rust/compile/torture/cast1.rs: New.
	* rust/compile/torture/cast2.rs: New.
	* rust/compile/torture/cast3.rs: New.
	* rust/compile/torture/cfg_attr.rs: New.
	* rust/compile/torture/char1.rs: New.
	* rust/compile/torture/check-doc-attr-string.rs: New.
	* rust/compile/torture/coercion1.rs: New.
	* rust/compile/torture/coercion2.rs: New.
	* rust/compile/torture/comparison_expr1.rs: New.
	* rust/compile/torture/compile.exp: New.
	* rust/compile/torture/compound_assignment_expr1.rs: New.
	* rust/compile/torture/conditional.rs: New.
	* rust/compile/torture/constant1.rs: New.
	* rust/compile/torture/constant2.rs: New.
	* rust/compile/torture/constant3.rs: New.
	* rust/compile/torture/deadcode1.rs: New.
	* rust/compile/torture/deadcode2.rs: New.
	* rust/compile/torture/deref1.rs: New.
	* rust/compile/torture/deref_function.rs: New.
	* rust/compile/torture/doc_comment.rs: New.
	* rust/compile/torture/enum1.rs: New.
	* rust/compile/torture/extern_mod1.rs: New.
	* rust/compile/torture/extern_mod2.rs: New.
	* rust/compile/torture/float1.rs: New.
	* rust/compile/torture/float_types.rs: New.
	* rust/compile/torture/forward_decl_1.rs: New.
	* rust/compile/torture/forward_decl_2.rs: New.
	* rust/compile/torture/forward_decl_3-unsafe.rs: New.
	* rust/compile/torture/forward_decl_3.rs: New.
	* rust/compile/torture/forward_decl_4.rs: New.
	* rust/compile/torture/forward_decl_5.rs: New.
	* rust/compile/torture/func1.rs: New.
	* rust/compile/torture/func2.rs: New.
	* rust/compile/torture/function_reference1.rs: New.
	* rust/compile/torture/function_reference2.rs: New.
	* rust/compile/torture/function_reference3.rs: New.
	* rust/compile/torture/function_reference4.rs: New.
	* rust/compile/torture/generics1.rs: New.
	* rust/compile/torture/generics10.rs: New.
	* rust/compile/torture/generics11.rs: New.
	* rust/compile/torture/generics12.rs: New.
	* rust/compile/torture/generics13.rs: New.
	* rust/compile/torture/generics14.rs: New.
	* rust/compile/torture/generics15.rs: New.
	* rust/compile/torture/generics16.rs: New.
	* rust/compile/torture/generics17.rs: New.
	* rust/compile/torture/generics18.rs: New.
	* rust/compile/torture/generics19.rs: New.
	* rust/compile/torture/generics2.rs: New.
	* rust/compile/torture/generics20.rs: New.
	* rust/compile/torture/generics21.rs: New.
	* rust/compile/torture/generics22.rs: New.
	* rust/compile/torture/generics23.rs: New.
	* rust/compile/torture/generics24.rs: New.
	* rust/compile/torture/generics25.rs: New.
	* rust/compile/torture/generics26.rs: New.
	* rust/compile/torture/generics27.rs: New.
	* rust/compile/torture/generics28.rs: New.
	* rust/compile/torture/generics29.rs: New.
	* rust/compile/torture/generics3.rs: New.
	* rust/compile/torture/generics30.rs: New.
	* rust/compile/torture/generics31.rs: New.
	* rust/compile/torture/generics32.rs: New.
	* rust/compile/torture/generics4.rs: New.
	* rust/compile/torture/generics5.rs: New.
	* rust/compile/torture/generics6.rs: New.
	* rust/compile/torture/generics7.rs: New.
	* rust/compile/torture/generics8.rs: New.
	* rust/compile/torture/generics9.rs: New.
	* rust/compile/torture/grouped_expr_function.rs: New.
	* rust/compile/torture/identifier-missing-impl-1.rs: New.
	* rust/compile/torture/if.rs: New.
	* rust/compile/torture/if_elif.rs: New.
	* rust/compile/torture/if_elif_else_expr1.rs: New.
	* rust/compile/torture/if_else.rs: New.
	* rust/compile/torture/ifunaryexpr.rs: New.
	* rust/compile/torture/impl_block1.rs: New.
	* rust/compile/torture/impl_block2.rs: New.
	* rust/compile/torture/impl_block3.rs: New.
	* rust/compile/torture/impl_block_unused.rs: New.
	* rust/compile/torture/implicit_returns1.rs: New.
	* rust/compile/torture/infer_type1.rs: New.
	* rust/compile/torture/inner_attributes.rs: New.
	* rust/compile/torture/integer_inference_var1.rs: New.
	* rust/compile/torture/integer_inference_var2.rs: New.
	* rust/compile/torture/integer_inference_var3.rs: New.
	* rust/compile/torture/integer_inference_var4.rs: New.
	* rust/compile/torture/integer_inference_var5.rs: New.
	* rust/compile/torture/integer_types.rs: New.
	* rust/compile/torture/intrinsics-1.rs: New.
	* rust/compile/torture/intrinsics-2.rs: New.
	* rust/compile/torture/isolated_cr_block_comment.rs: New.
	* rust/compile/torture/isolated_cr_line_comment.rs: New.
	* rust/compile/torture/issue-1024.rs: New.
	* rust/compile/torture/issue-1075.rs: New.
	* rust/compile/torture/issue-1432.rs: New.
	* rust/compile/torture/issue-1434.rs: New.
	* rust/compile/torture/issue-368.rs: New.
	* rust/compile/torture/issue-808.rs: New.
	* rust/compile/torture/issue-862.rs: New.
	* rust/compile/torture/issue-893-2.rs: New.
	* rust/compile/torture/issue-893.rs: New.
	* rust/compile/torture/lazybooleanexpr_function.rs: New.
	* rust/compile/torture/lifetime1.rs: New.
	* rust/compile/torture/literals1.rs: New.
	* rust/compile/torture/loop1.rs: New.
	* rust/compile/torture/loop2.rs: New.
	* rust/compile/torture/loop3.rs: New.
	* rust/compile/torture/loop4.rs: New.
	* rust/compile/torture/loop5.rs: New.
	* rust/compile/torture/loop6.rs: New.
	* rust/compile/torture/loop7.rs: New.
	* rust/compile/torture/macro-issue1403.rs: New.
	* rust/compile/torture/macro-issue1426.rs: New.
	* rust/compile/torture/macro_as_expr.rs: New.
	* rust/compile/torture/match1.rs: New.
	* rust/compile/torture/methods1.rs: New.
	* rust/compile/torture/methods2.rs: New.
	* rust/compile/torture/methods3.rs: New.
	* rust/compile/torture/mod-nameresolve.rs: New.
	* rust/compile/torture/mod1.rs: New.
	* rust/compile/torture/mod2.rs: New.
	* rust/compile/torture/mod3.rs: New.
	* rust/compile/torture/modules/mod.rs: New.
	* rust/compile/torture/modules/valid_path.rs: New.
	* rust/compile/torture/must_use1.rs: New.
	* rust/compile/torture/must_use2.rs: New.
	* rust/compile/torture/name_resolve1.rs: New.
	* rust/compile/torture/negation_function.rs: New.
	* rust/compile/torture/nested_fn1.rs: New.
	* rust/compile/torture/nested_fn2.rs: New.
	* rust/compile/torture/nested_struct1.rs: New.
	* rust/compile/torture/never_type1.rs: New.
	* rust/compile/torture/not_shebang.rs: New.
	* rust/compile/torture/not_shebang_block_comment.rs: New.
	* rust/compile/torture/not_shebang_comment.rs: New.
	* rust/compile/torture/not_shebang_multiline_comment.rs: New.
	* rust/compile/torture/not_shebang_spaces.rs: New.
	* rust/compile/torture/parameter_usage1.rs: New.
	* rust/compile/torture/parens1.rs: New.
	* rust/compile/torture/pointer1.rs: New.
	* rust/compile/torture/primconsts.rs: New.
	* rust/compile/torture/prims_struct_eq.rs: New.
	* rust/compile/torture/range-lang-item1.rs: New.
	* rust/compile/torture/raw_identifiers.rs: New.
	* rust/compile/torture/raw_identifiers_keywords.rs: New.
	* rust/compile/torture/recursive_fn1.rs: New.
	* rust/compile/torture/return_function.rs: New.
	* rust/compile/torture/scoping1.rs: New.
	* rust/compile/torture/self_type1.rs: New.
	* rust/compile/torture/shadow1.rs: New.
	* rust/compile/torture/shadow2.rs: New.
	* rust/compile/torture/shebang.rs: New.
	* rust/compile/torture/shebang_plus_attr.rs: New.
	* rust/compile/torture/shebang_plus_attr2.rs: New.
	* rust/compile/torture/static_function.rs: New.
	* rust/compile/torture/static_var1.rs: New.
	* rust/compile/torture/stmt_with_block1.rs: New.
	* rust/compile/torture/str1.rs: New.
	* rust/compile/torture/struct_access1.rs: New.
	* rust/compile/torture/struct_base_init_1.rs: New.
	* rust/compile/torture/struct_decl.rs: New.
	* rust/compile/torture/struct_init.rs: New.
	* rust/compile/torture/struct_init_10.rs: New.
	* rust/compile/torture/struct_init_11.rs: New.
	* rust/compile/torture/struct_init_2.rs: New.
	* rust/compile/torture/struct_init_3.rs: New.
	* rust/compile/torture/struct_init_4.rs: New.
	* rust/compile/torture/struct_init_5.rs: New.
	* rust/compile/torture/struct_init_6.rs: New.
	* rust/compile/torture/struct_init_7.rs: New.
	* rust/compile/torture/struct_init_8.rs: New.
	* rust/compile/torture/struct_init_9.rs: New.
	* rust/compile/torture/top_attr.rs: New.
	* rust/compile/torture/traits1.rs: New.
	* rust/compile/torture/traits10.rs: New.
	* rust/compile/torture/traits11.rs: New.
	* rust/compile/torture/traits12.rs: New.
	* rust/compile/torture/traits13.rs: New.
	* rust/compile/torture/traits14.rs: New.
	* rust/compile/torture/traits15.rs: New.
	* rust/compile/torture/traits16.rs: New.
	* rust/compile/torture/traits17.rs: New.
	* rust/compile/torture/traits18.rs: New.
	* rust/compile/torture/traits19.rs: New.
	* rust/compile/torture/traits2.rs: New.
	* rust/compile/torture/traits3.rs: New.
	* rust/compile/torture/traits4.rs: New.
	* rust/compile/torture/traits5.rs: New.
	* rust/compile/torture/traits6.rs: New.
	* rust/compile/torture/traits7.rs: New.
	* rust/compile/torture/traits8.rs: New.
	* rust/compile/torture/traits9.rs: New.
	* rust/compile/torture/transmute-size-check-1.rs: New.
	* rust/compile/torture/transmute1.rs: New.
	* rust/compile/torture/tuple1.rs: New.
	* rust/compile/torture/tuple2.rs: New.
	* rust/compile/torture/tuple3.rs: New.
	* rust/compile/torture/tuple_enum_variants.rs: New.
	* rust/compile/torture/tuple_field_access.rs: New.
	* rust/compile/torture/tuple_function.rs: New.
	* rust/compile/torture/tuple_index.rs: New.
	* rust/compile/torture/tuple_struct1.rs: New.
	* rust/compile/torture/tuple_struct2.rs: New.
	* rust/compile/torture/tuple_struct_unit.rs: New.
	* rust/compile/torture/tuple_struct_unused.rs: New.
	* rust/compile/torture/type-alias1.rs: New.
	* rust/compile/torture/type-alias2.rs: New.
	* rust/compile/torture/type_infer1.rs: New.
	* rust/compile/torture/type_infer2.rs: New.
	* rust/compile/torture/type_infer3.rs: New.
	* rust/compile/torture/type_infer4.rs: New.
	* rust/compile/torture/type_infer5.rs: New.
	* rust/compile/torture/type_infer6.rs: New.
	* rust/compile/torture/unary_operators.rs: New.
	* rust/compile/torture/undended-string-1.rs: New.
	* rust/compile/torture/undended-string-2.rs: New.
	* rust/compile/torture/underscore_id.rs: New.
	* rust/compile/torture/union.rs: New.
	* rust/compile/torture/union_union.rs: New.
	* rust/compile/torture/unit_type1.rs: New.
	* rust/compile/torture/unit_type2.rs: New.
	* rust/compile/torture/unit_type3.rs: New.
	* rust/compile/torture/unit_type4.rs: New.
	* rust/compile/torture/unit_type5.rs: New.
	* rust/compile/torture/unsafe1.rs: New.
	* rust/compile/torture/unsafe2.rs: New.
	* rust/compile/torture/unsafe3.rs: New.
	* rust/compile/torture/unsafe4.rs: New.
	* rust/compile/torture/unused.rs: New.
	* rust/compile/torture/unused1.rs: New.
	* rust/compile/torture/unused_struct.rs: New.
	* rust/compile/torture/unused_struct_field.rs: New.
	* rust/compile/torture/usize1.rs: New.
	* rust/compile/torture/very-broken-attr-string.rs: New.
	* rust/compile/torture/while_function.rs: New.
	* rust/compile/traits1.rs: New.
	* rust/compile/traits10.rs: New.
	* rust/compile/traits11.rs: New.
	* rust/compile/traits12.rs: New.
	* rust/compile/traits2.rs: New.
	* rust/compile/traits3.rs: New.
	* rust/compile/traits4.rs: New.
	* rust/compile/traits5.rs: New.
	* rust/compile/traits6.rs: New.
	* rust/compile/traits7.rs: New.
	* rust/compile/traits8.rs: New.
	* rust/compile/traits9.rs: New.
	* rust/compile/tuple1.rs: New.
	* rust/compile/tuple_struct1.rs: New.
	* rust/compile/tuple_struct2.rs: New.
	* rust/compile/tuple_struct3.rs: New.
	* rust/compile/type-alias1.rs: New.
	* rust/compile/type-bindings1.rs: New.
	* rust/compile/unary_negation.rs: New.
	* rust/compile/unary_not.rs: New.
	* rust/compile/unconstrained_type_param.rs: New.
	* rust/compile/unicode_escape.rs: New.
	* rust/compile/unsafe1.rs: New.
	* rust/compile/unsafe10.rs: New.
	* rust/compile/unsafe2.rs: New.
	* rust/compile/unsafe3.rs: New.
	* rust/compile/unsafe4.rs: New.
	* rust/compile/unsafe5.rs: New.
	* rust/compile/unsafe6.rs: New.
	* rust/compile/unsafe7.rs: New.
	* rust/compile/unsafe8.rs: New.
	* rust/compile/unsafe9.rs: New.
	* rust/compile/unterminated_c_comment.rs: New.
	* rust/compile/use_1.rs: New.
	* rust/compile/usize1.rs: New.
	* rust/compile/xfail/lifetime_param.rs: New.
	* rust/compile/xfail/struct_field_vis.rs: New.
	* rust/compile/xfail/xfail.exp: New.

Co-authored-by: Arthur Cohen <arthur.cohen@embecosm.com>
Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>
Co-authored-by: Mark Wielaard <mark@klomp.org>
Co-authored-by: Marc Poulhiès <dkm@kataplop.net>

This testsuite is heavily inspired from the LTO testsuite that uses a
pattern where each file is compiled to an object file and finally linked
together. Since Rust does not have headers/prototypes, we rely on the
ordering here so that all files numbered greater than zero get compiled to
object files first. This leaves the _0 file free to test the 'extern crate' and
'use' keywords to force testing of the compiler to read metadata from the
other 'crates'.

	gcc/testsuite/
	* rust/link/generic_function_0.rs: New.
	* rust/link/generic_function_1.rs: New.
	* rust/link/link.exp: New.
	* rust/link/simple_function_0.rs: New.
	* rust/link/simple_function_1.rs: New.
	* rust/link/trait_import_0.rs: New.
	* rust/link/trait_import_1.rs: New.

This testsuite is specifically about testcases which scan the asm debug
info for results.

	gcc/testsuite/
	* rust/debug/chartype.rs: New.
	* rust/debug/custom_link_section.rs: New.
	* rust/debug/debug.exp: New.
	* rust/debug/i8u8.rs: New.
	* rust/debug/lang.rs: New.
	* rust/debug/no_mangle.rs: New.
	* rust/debug/oldlang.rs: New.
	* rust/debug/tuple.rs: New.
	* rust/debug/win64-abi.rs: New.

Co-authored-by: Tom Tromey <tom@tromey.com>
Co-authored-by: Mark Wielaard <mark@klomp.org>
Co-authored-by: Marc Poulhiès <dkm@kataplop.net>

This copies over code from other front-end testsuites to enable testing
for the rust front-end specifically.

	gcc/testsuite/
	* lib/rust-dg.exp: New.
	* lib/rust.exp: New.

Co-authored-by: Marc Poulhiès <dkm@kataplop.net>
Co-authored-by: Thomas Schwinge <thomas@codesourcery.com>

The Rust 'char' type should use the DWARF DW_ATE_UTF encoding.

	gcc/
	* dwarf2out.cc (is_rust): New.
	(base_type_die): Use DW_ATE_UTF for the Rust 'char' type.
	(gen_compile_unit_die): Handle "GNU Rust".

Co-authored-by: Mark Wielaard <mark@klomp.org>
Co-authored-by: Marc Poulhiès <dkm@kataplop.net>

When doing if-conversion we simply throw away labels without checking
whether they are possibly targets of non-local gotos or have their
address taken.  The following rectifies this and refuses to if-convert
such loops.

	PR tree-optimization/108076
	* tree-if-conv.cc (if_convertible_loop_p_1): Reject blocks
	with non-local or forced labels that we later remove
	labels from.

	* gcc.dg/torture/pr108076.c: New testcase.

The r13-4547 commit added new non-static function to libbacktrace:
backtrace_uncompress_zstd but for the libsanitizer use we need to
rename it, so that it is in __asan_* namespace and doesn't clash
with other copies of libbacktrace.

2022-12-13  Jakub Jelinek  <jakub@redhat.com>

libsanitizer/
	PR sanitizer/108072
	* libbacktrace/backtrace-rename.h (backtrace_uncompress_zstd): Define.

This patch enables "have_cbranchcc4" on rs6000 by defining a
"cbranchcc4" expander. "have_cbrnachcc4" is a flag in ifcvt.cc to
indicate if branching by CC bits is valid or not. With this flag
enabled, some branches can be optimized to conditional moves.

2022-12-07  Haochen Gui <guihaoc@linux.ibm.com>

gcc/
	* config/rs6000/rs6000.md (cbranchcc4): New expander.

gcc/testsuite
	* gcc.target/powerpc/cbranchcc4-1.c: New.
	* gcc.target/powerpc/cbranchcc4-2.c: New.

prepare_cmp_insn is a help function to generate comparison rtx.
It should not assume that cbranchcc4 exists and all sub-CC modes
are supported on a target.  When the check fails, it could go to
fail and return a NULL rtx as its callers check the return value
for CCmode.

The test case (gcc.target/powerpc/cbranchcc4-1.c) which covers
failure path will be committed with an rs6000 specific patch.

2022-12-05  Haochen Gui <guihaoc@linux.ibm.com>

gcc/
	* optabs.cc (prepare_cmp_insn): Return a NULL rtx other than
	assertion failure when targets don't have cbranch optab or
	predicate check fails.

This patch broke a couple of different patterns; reverting while I work on a
fix.

	PR c++/108701

This reverts commit bd0485f2.

PR go/108057

The current version is the same as for the previous GCC release,
but there have been minor changes like new type descriptors that
make it impossible to run Go programs built with the previous GCC
release with the current libgo.

Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/456976

gcc/fortran/ChangeLog:

	PR fortran/102180
	* array.cc (match_array_element_spec): Add check for bad
	assumed-implied-spec.
	(gfc_match_array_spec): Reorder logic so that the first bad array
	element spec may trigger an error.

gcc/testsuite/ChangeLog:

	PR fortran/102180
	* gfortran.dg/pr102180.f90: New test.

Sometimes, nested lambdas of templated functions get no code generation
due to them being marked as instantianted outside of all modules being
compiled in the current compilation unit.  This despite enclosing
template instances being marked as instantiated inside the current
compilation unit.  To fix, all enclosing templates are now checked in
`function_defined_in_root_p'.

Because of this change, `function_needs_inline_definition_p' has also
been fixed up to only check whether the regular function definition
itself is to be emitted in the current compilation unit.

	PR d/108055

gcc/d/ChangeLog:

	* decl.cc (function_defined_in_root_p): Check all enclosing template
	instances for definition in a root module.
	(function_needs_inline_definition_p): Replace call to
	function_defined_in_root_p with test for outer module `isRoot'.

gcc/testsuite/ChangeLog:

	* gdc.dg/torture/imports/pr108055conv.d: New.
	* gdc.dg/torture/imports/pr108055spec.d: New.
	* gdc.dg/torture/imports/pr108055write.d: New.
	* gdc.dg/torture/pr108055.d: New test.

Enable TARGET_CONST_ANCHOR to allow complex constants to be created via
immediate add/sub.  Use a 24-bit range as that enables a 3 or 4-instruction
immediate to be replaced by 2 add/sub instructions.  Fix the costing of
add/sub to support 24-bit and 12-bit shifted immediates.
The generated code for the testcase is now the same or better than LLVM.
It also results in a small codesize reduction on SPEC.

gcc/
	* config/aarch64/aarch64.cc (aarch64_rtx_costs): Add correct costs
	for 24-bit and 12-bit shifted immediate add/sub.
	(TARGET_CONST_ANCHOR): Define.
	* config/aarch64/predicates.md (aarch64_pluslong_immediate):
	Fix range check.

gcc/testsuite/
	* gcc.target/aarch64/movk_3.c: New test.

This optimizes the following sequence

  ((a < b) & c) | ((a >= b) & d)

into

  (a < b ? c : d) & 1

for scalar and on vector we can omit the & 1.

Also recognizes

  (-(a < b) & c) | (-(a >= b) & d)

into

  a < b ? c : d

This changes the code generation from

zoo2:
	cmp     w0, w1
	cset    w0, lt
	cset    w1, ge
	and     w0, w0, w2
	and     w1, w1, w3
	orr     w0, w0, w1
	ret

into

	cmp	w0, w1
	csel	w0, w2, w3, lt
	and	w0, w0, 1
	ret

and significantly reduces the number of selects we have to do in the vector
code.

gcc/ChangeLog:

	* match.pd: Add new rule.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/if-compare_1.c: New test.
	* gcc.target/aarch64/if-compare_2.c: New test.

While writing a patch series I started getting incorrect codegen out from
VEC_PERM on partial struct types.

It turns out that this was happening because the TARGET_CAN_CHANGE_MODE_CLASS
implementation has a slight bug in it.  The hook only checked for SIMD to
Partial but never Partial to SIMD.   This resulted in incorrect subregs to be
generated from the fallback code in VEC_PERM_EXPR expansions.

I have unfortunately not been able to trigger it using a standalone testcase as
the mid-end optimizes away the permute every time I try to describe a permute
that would result in the bug.

The patch now rejects any conversion of partial SIMD struct types, unless they
are both partial structures of the same number of registers or one is a SIMD
type who's size is less than 8 bytes.

gcc/ChangeLog:

	* config/aarch64/aarch64.cc (aarch64_can_change_mode_class): Restrict
	conversions between partial struct types properly.

This implements the new tbranch optab for AArch64.

we cannot emit one big RTL for the final instruction immediately.
The reason that all comparisons in the AArch64 backend expand to separate CC
compares, and separate testing of the operands is for ifcvt.

The separate CC compare is needed so ifcvt can produce csel, cset etc from the
compares.  Unlike say combine, ifcvt can not do recog on a parallel with a
clobber.  Should we emit the instruction directly then ifcvt will not be able
to say, make a csel, because we have no patterns which handle zero_extract and
compare. (unlike combine ifcvt cannot transform the extract into an AND).

While you could provide various patterns for this (and I did try) you end up
with broken patterns because you can't add the clobber to the CC register.  If
you do, ifcvt recog fails.

i.e.

int
f1 (int x)
{
  if (x & 1)
    return 1;
  return x;
}

We lose csel here.

Secondly the reason the compare with an explicit CC mode is needed is so that
ifcvt can transform the operation into a version that doesn't require the flags
to be set.  But it only does so if it know the explicit usage of the CC reg.

For instance

int
foo (int a, int b)
{
  return ((a & (1 << 25)) ? 5 : 4);
}

Doesn't require a comparison, the optimal form is:

foo(int, int):
        ubfx    x0, x0, 25, 1
        add     w0, w0, 4
        ret

and no compare is actually needed.  If you represent the instruction using an
ANDS instead of a zero_extract then you get close, but you end up with an ands
followed by an add, which is a slower operation.

gcc/ChangeLog:

	* config/aarch64/aarch64.md (*tb<optab><mode>1): Rename to...
	(*tb<optab><ALLI:mode><GPI:mode>1): ... this.
	(tbranch_<code><mode>4): New.
	* config/aarch64/iterators.md(ZEROM, zerom): New.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/tbz_1.c: New test.

This adds a new test-and-branch optab that can be used to do a conditional test
of a bit and branch.   This is similar to the cbranch optab but instead can
test any arbitrary bit inside the register.

This patch recognizes boolean comparisons and single bit mask tests.

gcc/ChangeLog:

	* dojump.cc (do_jump): Pass along value.
	(do_jump_by_parts_greater_rtx): Likewise.
	(do_jump_by_parts_zero_rtx): Likewise.
	(do_jump_by_parts_equality_rtx): Likewise.
	(do_compare_rtx_and_jump): Likewise.
	(do_compare_and_jump): Likewise.
	* dojump.h (do_compare_rtx_and_jump): New.
	* optabs.cc (emit_cmp_and_jump_insn_1): Refactor to take optab to check.
	(validate_test_and_branch): New.
	(emit_cmp_and_jump_insns): Optiobally take a value, and when value is
	supplied then check if it's suitable for tbranch.
	* optabs.def (tbranch_eq$a4, tbranch_ne$a4): New.
	* doc/md.texi (tbranch_@var{op}@var{mode}4): Document it.
	* optabs.h (emit_cmp_and_jump_insns): New.
	* tree.h (tree_zero_one_valued_p): New.

The backend has an existing V2HFmode that is used by pairwise operations.
This mode was however never made fully functional.  Amongst other things it was
never declared as a vector type which made it unusable from the mid-end.

It's also lacking an implementation for load/stores so reload ICEs if this mode
is every used.  This finishes the implementation by providing the above.

Note that I have created a new iterator VHSDF_P instead of extending VHSDF
because the previous iterator is used in far more things than just load/stores.

It's also used for instance in intrinsics and extending this would force me to
provide support for mangling the type while we never expose it through
intrinsics.

gcc/ChangeLog:

	* config/aarch64/aarch64-simd.md (*aarch64_simd_movv2hf): New.
	(mov<mode>, movmisalign<mode>, aarch64_dup_lane<mode>,
	aarch64_store_lane0<mode>, aarch64_simd_vec_set<mode>,
	@aarch64_simd_vec_copy_lane<mode>, vec_set<mode>,
	reduc_<optab>_scal_<mode>, reduc_<fmaxmin>_scal_<mode>,
	aarch64_reduc_<optab>_internal<mode>, aarch64_get_lane<mode>,
	vec_init<mode><Vel>, vec_extract<mode><Vel>): Support V2HF.
	(aarch64_simd_dupv2hf): New.
	* config/aarch64/aarch64.cc (aarch64_classify_vector_mode):
	Add E_V2HFmode.
	* config/aarch64/iterators.md (VHSDF_P): New.
	(V2F, VMOVE, nunits, Vtype, Vmtype, Vetype, stype, VEL,
	Vel, q, vp): Add V2HF.
	* config/arm/types.md (neon_fp_reduc_add_h): New.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/sve/slp_1.c: Update testcase.

This test fails if chrono::days::rep or chrono::years::rep is a 32-bit
type, because a large days or years value silently overflows a 32-bit
integer when converted to seconds. It would be conforming to implement
chrono::days as chrono::duration<int32_t, ratio<86400>>, but would make
this overflow case more likely. Similarly for chrono::years,
chrono::months and chrono::weeks. This test is here to remind us not to
make that change lightly.

libstdc++-v3/ChangeLog:

	* testsuite/20_util/duration/arithmetic/overflow_c++20.cc: New
	test.

Also remove some redundant std::move calls for return statements.

libstdc++-v3/ChangeLog:

	PR libstdc++/108024
	* include/std/format (basic_format_string): Fix constraint.
	* testsuite/std/format/format_string.cc: New test.

Clang now defines an __is_unsigned built-in, and Windows defines an
_Out_ macro. Replace uses of those as identifiers.

There might also be a problem with __is_signed, which we use in several
places.

libstdc++-v3/ChangeLog:

	* include/std/chrono (hh_mm_ss): Rename __is_unsigned member to
	_S_is_unsigned.
	* include/std/format (basic_format_context): Rename _Out_
	template parameter to _Out2.
	* testsuite/17_intro/names.cc: Add Windows SAL annotation
	macros.

libstdc++-v3/ChangeLog:

	PR libstdc++/98034
	* include/std/atomic (__cpp_lib_atomic_lock_free_type_aliases):
	Define macro.
	(atomic_signed_lock_free, atomic_unsigned_lock_free): Define
	aliases.
	* include/std/version (__cpp_lib_atomic_lock_free_type_aliases):
	Define macro.
	* testsuite/29_atomics/atomic/lock_free_aliases.cc: New test.

This change was approved for C++23 last month.

libstdc++-v3/ChangeLog:

	* include/std/stacktrace (operator<<): Only output to narrow
	ostreams (LWG 3515).
	* testsuite/19_diagnostics/stacktrace/synopsis.cc:

contrib/ChangeLog:

	* mklog.py: Do not search PR entry in a file that is binary.

Recent ACLE additions specified the __ARM_FEATURE_PAUTH and __ARM_FEATURE_BTI macros [1] that the compiler
should define when the pointer authentication and BTI instructions are available (and don't act as NOPs).
We've received requests to enable them in GCC for aarch64, similar to clang [2].
It's a fairly simple patch and should be non-intrusive at this stage.
Pointer authentication has its own "pauth" feature flag, whereas BTI depends on an architecture level
of Armv8.5-a or later.

Bootstrapped and tested on aarch64-none-linux-gnu.

[1] https://github.com/ARM-software/acle/blob/main/main/acle.md#pointer-authentication
[2] https://reviews.llvm.org/rG7d40baa82b1f272f68de63f3c4f68d970bdcd6ed

gcc/ChangeLog:

	* config/aarch64/aarch64-c.cc (aarch64_update_cpp_builtins): Define
	__ARM_FEATURE_PAUTH and __ARM_FEATURE_BTI when appropriate.
	* config/aarch64/aarch64.h (TARGET_BTI): Define.

gcc/testsuite/ChangeLog:

	* gcc.target/aarch64/acle/bti_def.c: New test.
	* gcc.target/aarch64/acle/pauth_def.c: New test.

This reverts the part that substitutes from the definition of an
SSA name to the capture, thus ADDR_EXPR@0 eventually yielding
&y_1->a[i_2] instead of _3.  That's because I didn't think of
how to deal with substituting @0 in the result pattern.  So
the following re-instantiates the SSA def CONSTRUCTOR handling
and in the ADDR_EXPR helpers used by match.pd handles SSA names
defined to ADDR_EXPRs transparently.

	* genmatch.cc (dt_simplify::gen): Revert last change.
	* match.pd: Revert simplification of CONSTUCTOR leaf handling.
	(&x cmp SSA_NAME): Handle ADDR_EXPR in SSA defs.
	* fold-const.cc (split_address_to_core_and_offset): Handle
	ADDR_EXPRs in SSA defs.
	(address_compare): Likewise.

As seen in the original testcase for PR89317 we are missing
comparison simplification patterns for &p->x != p + 4.  Fixed
by making an existing one apply.  To make the pattern apply
during CCP we need to simplify ccp_fold to not use GENERIC
folding of conditions but also use GIMPLE folding.

	PR tree-optimization/89317
	* tree-ssa-ccp.cc (ccp_fold): Handle GIMPLE_COND via
	gimple_fold_stmt_to_constant_1.
	* match.pd (&a != &a + c): Apply to pointer_plus with non-ADDR_EXPR
	base as well.

	* gcc.dg/tree-ssa/pr89317.c: Amend.

gcc/fortran/ChangeLog:

	PR fortran/107995
	* interface.cc (gfc_check_dummy_characteristics): Reject statement
	function dummy arguments.

gcc/testsuite/ChangeLog:

	PR fortran/107995
	* gfortran.dg/pr107995.f90: New test.

The visitor for lowering IMPORTED_DECLs did not have an override for
dealing with importing OverloadSet symbols.  This has now been
implemented in the code generator.

	PR d/108050

gcc/d/ChangeLog:

	* decl.cc (DeclVisitor::visit (Import *)): Handle build_import_decl
	returning a TREE_LIST.
	* imports.cc (ImportVisitor::visit (OverloadSet *)): New override.

gcc/testsuite/ChangeLog:

	* gdc.dg/imports/pr108050/mod1.d: New.
	* gdc.dg/imports/pr108050/mod2.d: New.
	* gdc.dg/imports/pr108050/package.d: New.
	* gdc.dg/pr108050.d: New test.

In order to support CR on a line, we need to open files
with newline='\n' as our line endings supposed to be of UNIX style.

contrib/ChangeLog:

	* check_GNU_style.py: Use newline=\n.
	* check_GNU_style_lib.py: Simplify.
	* gcc-changelog/git_commit.py: Fix issues seen
	Rust patchset.
	* gcc-changelog/git_email.py: Use newline argument.
	* gcc-changelog/test_email.py: New test.
	* gcc-changelog/test_patches.txt: New test.
	* mklog.py: Use newline argument.

D front-end changes:

	- Import dmd v2.101.0.
	- Deprecate the ability to call `__traits(getAttributes)' on
	  overload sets.
	- Deprecate non-empty `for' statement increment clause with no
	  effect.
	- Array literals assigned to `scope' array variables can now be
	  allocated on the stack.

D runtime changes:

	- Import druntime v2.101.0.

Phobos changes:

	- Import phobos v2.101.0.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd c8ae4adb2e.
	* typeinfo.cc (check_typeinfo_type): Update for new front-end
	interface.
	(TypeInfoVisitor::visit (TypeInfoStructDeclaration *)): Remove warning
	that toHash() must be declared 'nothrow @safe`.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime c8ae4adb2e.
	* src/MERGE: Merge upstream phobos 792c8b7c1.

As well as removing unnecessary casts, this results in less temporaries
being generated during the initial gimple lowering pass.  Otherwise the
code generated is identical to the former intrinsic expansion.

gcc/d/ChangeLog:

	* intrinsics.cc (expand_intrinsic_bsf): Fix comment.
	(expand_intrinsic_bsr): Use BIT_XOR_EXPR instead of MINUS_EXPR.

The PR notices we fail to simplify

  a_4 = &x_3(D)->data;
  b_5 = x_3(D) + 16;
  _1 = b_5 - a_4;

together with the enabler handling ADDR_EXPR leafs in separate
stmts in match.pd the suggested patterns work.

	PR tree-optimization/89317
	* match.pd ((p + b) - &p->c -> b - offsetof(c)): New patterns.

	* gcc.dg/tree-ssa/pr89317.c: New testcase.

The following allows to match ADDR_EXPR for both the invariant
&a.b case as well as the &p->d case in a separate definition
transparently.  This also allows to remove the hack we employ
for CONSTRUCTOR which we handle for example with

 (match vec_same_elem_p
  CONSTRUCTOR@0
  (if (TREE_CODE (@0) == SSA_NAME
       && uniform_vector_p (gimple_assign_rhs1 (SSA_NAME_DEF_STMT (@0))))))

Note CONSTUCTORs always appear as separate definition in GIMPLE,
but I continue to play safe and ADDR_EXPRs are now matched in
both places where previously ADDR_EXPR@0 would have missed
the &p->x case.

This is a prerequesite for the PR89317 fix.

	* genmatch.cc (dt_node::gen_kids): Handle ADDR_EXPR in both
	the GENERIC and GIMPLE op position.
	(dt_simplify::gen): Capture both GENERIC and GIMPLE op
	position for ADDR_EXPR and CONSTRUCTOR.
	* match.pd: Simplify CONSTRUCTOR leaf handling.

	* gcc.dg/tree-ssa/forwprop-3.c: Adjust.
	* g++.dg/tree-ssa/pr31146-2.C: Likewise.

The following avoids CSE of &ps->wp to &ps->wp.hwnd confusing
-Wstringopt-overflow by making sure to produce addresses to the
biggest container from vectorization.  For this I introduce
strip_zero_offset_components which turns &ps->wp.hwnd into
&(*ps) and use that to base the vector data references on.
That will also work for addresses with variable components,
alternatively emitting pointer arithmetic via calling
get_inner_reference and gimplifying that would be possible
but likely more intrusive.

This is by no means a complete fix for all of those issues
(avoiding ADDR_EXPRs in favor of pointer arithmetic might be).
Other passes will have similar issues.

In theory that might now cause false negatives.

	PR tree-optimization/106904
	* tree.h (strip_zero_offset_components): Declare.
	* tree.cc (strip_zero_offset_components): Define.
	* tree-vect-data-refs.cc (vect_create_addr_base_for_vector_ref):
	Strip zero offset components before building the address.

	* gcc.dg/Wstringop-overflow-pr106904.c: New testcase.