Date: Thu, 12 Dec 2013 18:15:33 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r259268 - in stable/10/contrib: gcc gcc/config/rs6000 gcc/cp gcc/doc gcclibs/libcpp Message-ID: <201312121815.rBCIFX9b022103@svn.freebsd.org>
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Author: pfg Date: Thu Dec 12 18:15:32 2013 New Revision: 259268 URL: http://svnweb.freebsd.org/changeset/base/259268 Log: MFC r258081, r258138, r258143, r258179, r258157, r258204, 258205, r258206, r258207, r258321 This is a series of commits inspired on Google's gcc-4.2.1 for Android that were taken from the gcc pre-4.3 under the GPLv2. gcc: Backport fixes for -W parentheses in C++ This fixes GCC 19564. gcc: merge rs6000 change from FSF pre-gcc43 Don't set MASK_PPC_GFXOPT for 8540 or 8548. Merge vrp-tree fix from gcc-4.3 Fix missed conversion from / to >> (GCC PR32521) Merge in GCCr120505 to include definition of TREE_OVERFLOW_P gcc: warn about integer overflow in constant expressions in the C++ frontend. gcc: Add a new option -Wvla to warn variable length array. libcpp: preprocessor speedup patches from upstream gcc. gcc: add femit-struct-debug support to reduce Reduce dwarf debug size gcc: Fix postreload-gcse treatment of call-clobbered registers. gcc: Record some previous commits in the ChangeLog.gcc43 file. Modified: stable/10/contrib/gcc/ChangeLog.gcc43 stable/10/contrib/gcc/c-common.c stable/10/contrib/gcc/c-common.h stable/10/contrib/gcc/c-decl.c stable/10/contrib/gcc/c-opts.c stable/10/contrib/gcc/c-typeck.c stable/10/contrib/gcc/c.opt stable/10/contrib/gcc/config/rs6000/rs6000.c stable/10/contrib/gcc/cp/cp-lang.c stable/10/contrib/gcc/cp/cp-tree.h stable/10/contrib/gcc/cp/decl.c stable/10/contrib/gcc/cp/parser.c stable/10/contrib/gcc/cp/pt.c stable/10/contrib/gcc/cp/semantics.c stable/10/contrib/gcc/cp/tree.c stable/10/contrib/gcc/cp/typeck.c stable/10/contrib/gcc/doc/invoke.texi stable/10/contrib/gcc/dwarf2out.c stable/10/contrib/gcc/flags.h stable/10/contrib/gcc/langhooks-def.h stable/10/contrib/gcc/langhooks.h stable/10/contrib/gcc/opts.c stable/10/contrib/gcc/postreload-gcse.c stable/10/contrib/gcc/regs.h stable/10/contrib/gcc/rtlanal.c stable/10/contrib/gcc/tree-vrp.c stable/10/contrib/gcc/tree.h stable/10/contrib/gcclibs/libcpp/files.c stable/10/contrib/gcclibs/libcpp/internal.h stable/10/contrib/gcclibs/libcpp/lex.c Directory Properties: stable/10/ (props changed) Modified: stable/10/contrib/gcc/ChangeLog.gcc43 ============================================================================== --- stable/10/contrib/gcc/ChangeLog.gcc43 Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/ChangeLog.gcc43 Thu Dec 12 18:15:32 2013 (r259268) @@ -1,9 +1,35 @@ -2007-06-05 Joerg Wunsch <j.gnu@uriah.heep.sax.de> (r23479) +2007-08-08 Andrew Haley <aph@redhat.com> (r128087) + + * config/arm/libunwind.S (UNWIND_WRAPPER _Unwind_Backtrace): New. + * config/arm/unwind-arm.h (__gnu_Unwind_Backtrace): New. + * config/arm/unwind-arm.c (__gnu_Unwind_Backtrace): New. + +2007-06-05 Joerg Wunsch <j.gnu@uriah.heep.sax.de> (r125346) PR preprocessor/23479 * doc/extend.texi: Document the 0b-prefixed binary integer constant extension. +2007-05-24 Richard Sandiford <rsandifo@nildram.co.uk> (r125037) + + * postreload-gcse.c (reg_changed_after_insn_p): New function. + (oprs_unchanged_p): Use it to check all registers in a REG. + (record_opr_changes): Look for clobbers in CALL_INSN_FUNCTION_USAGE. + (reg_set_between_after_reload_p): Delete. + (reg_used_between_after_reload_p): Likewise. + (reg_set_or_used_since_bb_start): Likewise. + (eliminate_partially_redundant_load): Use reg_changed_after_insn_p + and reg_used_between_p instead of reg_set_or_used_since_bb_start. + Use reg_set_between_p instead of reg_set_between_after_reload_p. + * rtlanal.c (reg_set_p): Check whether REG overlaps + regs_invalidated_by_call, rather than just checking the + membership of REGNO (REG). + +2007-05-03 Ian Lance Taylor <iant@google.com> (r124381) + + * config/rs6000/rs6000.c (rs6000_override_options): Don't set + MASK_PPC_GFXOPT for 8540 or 8548. + 2007-05-01 Dwarakanath Rajagopal <dwarak.rajagopal@amd.com> (r124341) * doc/invoke.texi: Fix typo, 'AMD Family 10h core' instead of @@ -22,6 +48,57 @@ alignment for amdfam10 architecture. Increasing the max loop alignment to 24 bytes. +2007-04-16 Lawrence Crowl <crowl@google.com> + + * doc/invoke.texi (Debugging Options): Add documentation for the + -femit-struct-debug options -femit-struct-debug-baseonly, + -femit-struct-debug-reduced, and + -femit-struct-debug-detailed[=...]. + + * c-opts.c (c_common_handle_option): Add + OPT_femit_struct_debug_baseonly, OPT_femit_struct_debug_reduced, + and OPT_femit_struct_debug_detailed_. + * c.opt: Add specifications for + -femit-struct-debug-baseonly, -femit-struct-debug-reduced, + and -femit-struct-debug-detailed[=...]. + * opts.c (set_struct_debug_option): Parse the + -femit-struct-debug-... options. + * opts.c (matches_main_base, main_input_basename, + main_input_baselength, base_of_path, matches_main_base): Add + variables and functions to compare header base name to compilation + unit base name. + * opts.c (should_emit_struct_debug): Add to determine to emit a + structure based on the option. + (dump_struct_debug) Also disabled function to debug this + function. + * opts.c (handle_options): Save the base name of the + compilation unit. + + * langhooks-def.h (LANG_HOOKS_GENERIC_TYPE_P): Define. + (LANG_HOOKS_FOR_TYPES_INITIALIZER): Add. + This hook indicates if a type is generic. Set it by default + to "never generic". + * langhooks.h (struct lang_hooks_for_types): Add a new hook + to determine if a struct type is generic or not. + * cp/cp-tree.h (class_tmpl_impl_spec_p): Declare a C++ hook. + * cp/tree.c (class_tmpl_impl_spec_p): Implement the C++ hook. + * cp/cp-lang.c (LANG_HOOKS_GENERIC_TYPE_P): Override null C hook + with live C++ hook. + + * flags.h (enum debug_info_usage): Add an enumeration to describe + a program's use of a structure type. + * dwarf2out.c (gen_struct_or_union_type_die): Add a new parameter + to indicate the program's usage of the type. Filter structs based + on the -femit-struct-debug-... specification. + (gen_type_die): Split into two routines, gen_type_die and + gen_type_die_with_usage. gen_type_die is now a wrapper + that assumes direct usage. + (gen_type_die_with_usage): Replace calls to gen_type_die + with gen_type_die_with_usage adding the program usage of + the referenced type. + (dwarf2out_imported_module_or_decl): Suppress struct debug + information using should_emit_struct_debug when appropriate. + 2007-04-12 Richard Guenther <rguenther@suse.de> (r123736) PR tree-optimization/24689 @@ -44,6 +121,19 @@ * config/i386/i386.c (override_options): Likewise. * doc/invoke.texi: Likewise. +2007-03-12 Seongbae Park <seongbae.park@gmail.com> + + * c-decl.c (warn_variable_length_array): New function. + Refactored from grokdeclarator to handle warn_vla + and handle unnamed array case. + (grokdeclarator): Refactored VLA warning case. + * c.opt (Wvla): New flag. + +2007-03-11 Ian Lance Taylor <iant@google.com> (r122831 - partial) + + * tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and + the *_DIV_EXPR codes correctly with overflow infinities. + 2007-02-09 Dwarakanath Rajagopal <dwarak.rajagopal@amd.com> (r121763) * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10. @@ -232,6 +322,17 @@ * config.gcc: Support core2 processor. +2006-12-13 Ian Lance Taylor <iant@google.com> (r119855) + + PR c++/19564 + PR c++/19756 + * c-typeck.c (parser_build_binary_op): Move parentheses warnings + to warn_about_parentheses in c-common.c. + * c-common.c (warn_about_parentheses): New function. + * c-common.h (warn_about_parentheses): Declare. + * doc/invoke.texi (Warning Options): Update -Wparentheses + description. + 2006-12-02 H.J. Lu <hongjiu.lu@intel.com> (r119454 - partial) PR target/30040 @@ -270,6 +371,35 @@ (override_options): Add entries for Core2. (ix86_issue_rate): Add case for Core2. +2006-10-31 Geoffrey Keating <geoffk@apple.com> (r118356) + + * c-decl.c (grokdeclarator): Don't set DECL_EXTERNAL on + inline static functions in c99 mode. + + PR 16622 + * doc/extend.texi (Inline): Update. + * c-tree.h (struct language_function): Remove field 'extern_inline'. + * c-decl.c (current_extern_inline): Delete. + (pop_scope): Adjust test for an undefined nested function. + Add warning about undeclared inline function. + (diagnose_mismatched_decls): Update comments. Disallow overriding + of inline functions in a translation unit in C99. Allow inline + declarations in C99 at any time. + (merge_decls): Boolize variables. Handle C99 'extern inline' + semantics. + (grokdeclarator): Set DECL_EXTERNAL here for functions. Handle + C99 inline semantics. + (start_function): Don't clear current_extern_inline. Don't set + DECL_EXTERNAL. + (c_push_function_context): Don't push current_extern_inline. + (c_pop_function_context): Don't restore current_extern_inline. + + PR 11377 + * c-typeck.c (build_external_ref): Warn about static variables + used in extern inline functions. + * c-decl.c (start_decl): Warn about static variables declared + in extern inline functions. + 2006-10-27 Vladimir Makarov <vmakarov@redhat.com> (r118090) * config/i386/i386.h (TARGET_GEODE): Modified: stable/10/contrib/gcc/c-common.c ============================================================================== --- stable/10/contrib/gcc/c-common.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/c-common.c Thu Dec 12 18:15:32 2013 (r259268) @@ -2585,9 +2585,13 @@ c_common_truthvalue_conversion (tree exp break; case MODIFY_EXPR: - if (!TREE_NO_WARNING (expr)) - warning (OPT_Wparentheses, - "suggest parentheses around assignment used as truth value"); + if (!TREE_NO_WARNING (expr) + && warn_parentheses) + { + warning (OPT_Wparentheses, + "suggest parentheses around assignment used as truth value"); + TREE_NO_WARNING (expr) = 1; + } break; default: @@ -6471,5 +6475,87 @@ warn_array_subscript_with_type_char (tre warning (OPT_Wchar_subscripts, "array subscript has type %<char%>"); } +/* Implement -Wparentheses for the unexpected C precedence rules, to + cover cases like x + y << z which readers are likely to + misinterpret. We have seen an expression in which CODE is a binary + operator used to combine expressions headed by CODE_LEFT and + CODE_RIGHT. CODE_LEFT and CODE_RIGHT may be ERROR_MARK, which + means that that side of the expression was not formed using a + binary operator, or it was enclosed in parentheses. */ + +void +warn_about_parentheses (enum tree_code code, enum tree_code code_left, + enum tree_code code_right) +{ + if (!warn_parentheses) + return; + + if (code == LSHIFT_EXPR || code == RSHIFT_EXPR) + { + if (code_left == PLUS_EXPR || code_left == MINUS_EXPR + || code_right == PLUS_EXPR || code_right == MINUS_EXPR) + warning (OPT_Wparentheses, + "suggest parentheses around + or - inside shift"); + } + + if (code == TRUTH_ORIF_EXPR) + { + if (code_left == TRUTH_ANDIF_EXPR + || code_right == TRUTH_ANDIF_EXPR) + warning (OPT_Wparentheses, + "suggest parentheses around && within ||"); + } + + if (code == BIT_IOR_EXPR) + { + if (code_left == BIT_AND_EXPR || code_left == BIT_XOR_EXPR + || code_left == PLUS_EXPR || code_left == MINUS_EXPR + || code_right == BIT_AND_EXPR || code_right == BIT_XOR_EXPR + || code_right == PLUS_EXPR || code_right == MINUS_EXPR) + warning (OPT_Wparentheses, + "suggest parentheses around arithmetic in operand of |"); + /* Check cases like x|y==z */ + if (TREE_CODE_CLASS (code_left) == tcc_comparison + || TREE_CODE_CLASS (code_right) == tcc_comparison) + warning (OPT_Wparentheses, + "suggest parentheses around comparison in operand of |"); + } + + if (code == BIT_XOR_EXPR) + { + if (code_left == BIT_AND_EXPR + || code_left == PLUS_EXPR || code_left == MINUS_EXPR + || code_right == BIT_AND_EXPR + || code_right == PLUS_EXPR || code_right == MINUS_EXPR) + warning (OPT_Wparentheses, + "suggest parentheses around arithmetic in operand of ^"); + /* Check cases like x^y==z */ + if (TREE_CODE_CLASS (code_left) == tcc_comparison + || TREE_CODE_CLASS (code_right) == tcc_comparison) + warning (OPT_Wparentheses, + "suggest parentheses around comparison in operand of ^"); + } + + if (code == BIT_AND_EXPR) + { + if (code_left == PLUS_EXPR || code_left == MINUS_EXPR + || code_right == PLUS_EXPR || code_right == MINUS_EXPR) + warning (OPT_Wparentheses, + "suggest parentheses around + or - in operand of &"); + /* Check cases like x&y==z */ + if (TREE_CODE_CLASS (code_left) == tcc_comparison + || TREE_CODE_CLASS (code_right) == tcc_comparison) + warning (OPT_Wparentheses, + "suggest parentheses around comparison in operand of &"); + } + + /* Similarly, check for cases like 1<=i<=10 that are probably errors. */ + if (TREE_CODE_CLASS (code) == tcc_comparison + && (TREE_CODE_CLASS (code_left) == tcc_comparison + || TREE_CODE_CLASS (code_right) == tcc_comparison)) + warning (OPT_Wparentheses, "comparisons like X<=Y<=Z do not " + "have their mathematical meaning"); +} + #include "gt-c-common.h" Modified: stable/10/contrib/gcc/c-common.h ============================================================================== --- stable/10/contrib/gcc/c-common.h Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/c-common.h Thu Dec 12 18:15:32 2013 (r259268) @@ -850,6 +850,9 @@ extern int complete_array_type (tree *, extern tree builtin_type_for_size (int, bool); extern void warn_array_subscript_with_type_char (tree); +extern void warn_about_parentheses (enum tree_code, enum tree_code, + enum tree_code); + /* In c-gimplify.c */ extern void c_genericize (tree); Modified: stable/10/contrib/gcc/c-decl.c ============================================================================== --- stable/10/contrib/gcc/c-decl.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/c-decl.c Thu Dec 12 18:15:32 2013 (r259268) @@ -3931,6 +3931,61 @@ check_bitfield_type_and_width (tree *typ } + +/* Print warning about variable length array if necessary. */ + +static void +warn_variable_length_array (const char *name, tree size) +{ + int ped = !flag_isoc99 && pedantic && warn_vla != 0; + int const_size = TREE_CONSTANT (size); + + if (ped) + { + if (const_size) + { + if (name) + pedwarn ("ISO C90 forbids array %qs whose size " + "can%'t be evaluated", + name); + else + pedwarn ("ISO C90 forbids array whose size " + "can%'t be evaluated"); + } + else + { + if (name) + pedwarn ("ISO C90 forbids variable length array %qs", + name); + else + pedwarn ("ISO C90 forbids variable length array"); + } + } + else if (warn_vla > 0) + { + if (const_size) + { + if (name) + warning (OPT_Wvla, + "the size of array %qs can" + "%'t be evaluated", name); + else + warning (OPT_Wvla, + "the size of array can %'t be evaluated"); + } + else + { + if (name) + warning (OPT_Wvla, + "variable length array %qs is used", + name); + else + warning (OPT_Wvla, + "variable length array is used"); + } + } +} + /* Given declspecs and a declarator, determine the name and type of the object declared and construct a ..._DECL node for it. @@ -4329,17 +4384,7 @@ grokdeclarator (const struct c_declarato nonconstant even if it is (eg) a const variable with known value. */ size_varies = 1; - - if (!flag_isoc99 && pedantic) - { - if (TREE_CONSTANT (size)) - pedwarn ("ISO C90 forbids array %qs whose size " - "can%'t be evaluated", - name); - else - pedwarn ("ISO C90 forbids variable-size array %qs", - name); - } + warn_variable_length_array (orig_name, size); if (warn_variable_decl) warning (0, "variable-sized array %qs", name); } Modified: stable/10/contrib/gcc/c-opts.c ============================================================================== --- stable/10/contrib/gcc/c-opts.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/c-opts.c Thu Dec 12 18:15:32 2013 (r259268) @@ -818,6 +818,18 @@ c_common_handle_option (size_t scode, co flag_gen_declaration = 1; break; + case OPT_femit_struct_debug_baseonly: + set_struct_debug_option ("base"); + break; + + case OPT_femit_struct_debug_reduced: + set_struct_debug_option ("dir:ord:sys,dir:gen:any,ind:base"); + break; + + case OPT_femit_struct_debug_detailed_: + set_struct_debug_option (arg); + break; + case OPT_idirafter: add_path (xstrdup (arg), AFTER, 0, true); break; Modified: stable/10/contrib/gcc/c-typeck.c ============================================================================== --- stable/10/contrib/gcc/c-typeck.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/c-typeck.c Thu Dec 12 18:15:32 2013 (r259268) @@ -2631,73 +2631,7 @@ parser_build_binary_op (enum tree_code c /* Check for cases such as x+y<<z which users are likely to misinterpret. */ if (warn_parentheses) - { - if (code == LSHIFT_EXPR || code == RSHIFT_EXPR) - { - if (code1 == PLUS_EXPR || code1 == MINUS_EXPR - || code2 == PLUS_EXPR || code2 == MINUS_EXPR) - warning (OPT_Wparentheses, - "suggest parentheses around + or - inside shift"); - } - - if (code == TRUTH_ORIF_EXPR) - { - if (code1 == TRUTH_ANDIF_EXPR - || code2 == TRUTH_ANDIF_EXPR) - warning (OPT_Wparentheses, - "suggest parentheses around && within ||"); - } - - if (code == BIT_IOR_EXPR) - { - if (code1 == BIT_AND_EXPR || code1 == BIT_XOR_EXPR - || code1 == PLUS_EXPR || code1 == MINUS_EXPR - || code2 == BIT_AND_EXPR || code2 == BIT_XOR_EXPR - || code2 == PLUS_EXPR || code2 == MINUS_EXPR) - warning (OPT_Wparentheses, - "suggest parentheses around arithmetic in operand of |"); - /* Check cases like x|y==z */ - if (TREE_CODE_CLASS (code1) == tcc_comparison - || TREE_CODE_CLASS (code2) == tcc_comparison) - warning (OPT_Wparentheses, - "suggest parentheses around comparison in operand of |"); - } - - if (code == BIT_XOR_EXPR) - { - if (code1 == BIT_AND_EXPR - || code1 == PLUS_EXPR || code1 == MINUS_EXPR - || code2 == BIT_AND_EXPR - || code2 == PLUS_EXPR || code2 == MINUS_EXPR) - warning (OPT_Wparentheses, - "suggest parentheses around arithmetic in operand of ^"); - /* Check cases like x^y==z */ - if (TREE_CODE_CLASS (code1) == tcc_comparison - || TREE_CODE_CLASS (code2) == tcc_comparison) - warning (OPT_Wparentheses, - "suggest parentheses around comparison in operand of ^"); - } - - if (code == BIT_AND_EXPR) - { - if (code1 == PLUS_EXPR || code1 == MINUS_EXPR - || code2 == PLUS_EXPR || code2 == MINUS_EXPR) - warning (OPT_Wparentheses, - "suggest parentheses around + or - in operand of &"); - /* Check cases like x&y==z */ - if (TREE_CODE_CLASS (code1) == tcc_comparison - || TREE_CODE_CLASS (code2) == tcc_comparison) - warning (OPT_Wparentheses, - "suggest parentheses around comparison in operand of &"); - } - /* Similarly, check for cases like 1<=i<=10 that are probably errors. */ - if (TREE_CODE_CLASS (code) == tcc_comparison - && (TREE_CODE_CLASS (code1) == tcc_comparison - || TREE_CODE_CLASS (code2) == tcc_comparison)) - warning (OPT_Wparentheses, "comparisons like X<=Y<=Z do not " - "have their mathematical meaning"); - - } + warn_about_parentheses (code, code1, code2); /* Warn about comparisons against string literals, with the exception of testing for equality or inequality of a string literal with NULL. */ Modified: stable/10/contrib/gcc/c.opt ============================================================================== --- stable/10/contrib/gcc/c.opt Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/c.opt Thu Dec 12 18:15:32 2013 (r259268) @@ -432,6 +432,10 @@ Wvariadic-macros C ObjC C++ ObjC++ Do not warn about using variadic macros when -pedantic +Wvla +C ObjC C++ ObjC++ Var(warn_vla) Init(-1) Warning +Warn if a variable length array is used + Wwrite-strings C ObjC C++ ObjC++ Var(warn_write_strings) In C++, nonzero means warn about deprecated conversion from string literals to `char *'. In C, similar warning, except that the conversion is of course not deprecated by the ISO C standard. @@ -761,6 +765,18 @@ gen-decls ObjC ObjC++ Dump declarations to a .decl file +femit-struct-debug-baseonly +C ObjC C++ ObjC++ +-femit-struct-debug-baseonly Aggressive reduced debug info for structs + +femit-struct-debug-reduced +C ObjC C++ ObjC++ +-femit-struct-debug-reduced Conservative reduced debug info for structs + +femit-struct-debug-detailed= +C ObjC C++ ObjC++ Joined +-femit-struct-debug-detailed=<spec-list> Detailed reduced debug info for structs + idirafter C ObjC C++ ObjC++ Joined Separate -idirafter <dir> Add <dir> to the end of the system include path Modified: stable/10/contrib/gcc/config/rs6000/rs6000.c ============================================================================== --- stable/10/contrib/gcc/config/rs6000/rs6000.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/config/rs6000/rs6000.c Thu Dec 12 18:15:32 2013 (r259268) @@ -1171,11 +1171,9 @@ rs6000_override_options (const char *def {"801", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"821", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"823", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, - {"8540", PROCESSOR_PPC8540, - POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_STRICT_ALIGN}, + {"8540", PROCESSOR_PPC8540, POWERPC_BASE_MASK | MASK_STRICT_ALIGN}, /* 8548 has a dummy entry for now. */ - {"8548", PROCESSOR_PPC8540, - POWERPC_BASE_MASK | MASK_PPC_GFXOPT | MASK_STRICT_ALIGN}, + {"8548", PROCESSOR_PPC8540, POWERPC_BASE_MASK | MASK_STRICT_ALIGN}, {"860", PROCESSOR_MPCCORE, POWERPC_BASE_MASK | MASK_SOFT_FLOAT}, {"970", PROCESSOR_POWER4, POWERPC_7400_MASK | MASK_PPC_GPOPT | MASK_MFCRF | MASK_POWERPC64}, Modified: stable/10/contrib/gcc/cp/cp-lang.c ============================================================================== --- stable/10/contrib/gcc/cp/cp-lang.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/cp-lang.c Thu Dec 12 18:15:32 2013 (r259268) @@ -44,6 +44,8 @@ static void cp_init_ts (void); #define LANG_HOOKS_NAME "GNU C++" #undef LANG_HOOKS_INIT #define LANG_HOOKS_INIT cxx_init +#undef LANG_HOOKS_GENERIC_TYPE_P +#define LANG_HOOKS_GENERIC_TYPE_P class_tmpl_impl_spec_p #undef LANG_HOOKS_DECL_PRINTABLE_NAME #define LANG_HOOKS_DECL_PRINTABLE_NAME cxx_printable_name #undef LANG_HOOKS_FOLD_OBJ_TYPE_REF Modified: stable/10/contrib/gcc/cp/cp-tree.h ============================================================================== --- stable/10/contrib/gcc/cp/cp-tree.h Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/cp-tree.h Thu Dec 12 18:15:32 2013 (r259268) @@ -4373,6 +4373,7 @@ extern tree add_stmt_to_compound (tree, extern tree cxx_maybe_build_cleanup (tree); extern void init_tree (void); extern int pod_type_p (tree); +extern bool class_tmpl_impl_spec_p (tree); extern int zero_init_p (tree); extern tree canonical_type_variant (tree); extern tree copy_binfo (tree, tree, tree, @@ -4460,8 +4461,9 @@ extern tree build_x_indirect_ref (tree, extern tree build_indirect_ref (tree, const char *); extern tree build_array_ref (tree, tree); extern tree get_member_function_from_ptrfunc (tree *, tree); -extern tree build_x_binary_op (enum tree_code, tree, tree, - bool *); +extern tree build_x_binary_op (enum tree_code, tree, + enum tree_code, tree, + enum tree_code, bool *); extern tree build_x_unary_op (enum tree_code, tree); extern tree unary_complex_lvalue (enum tree_code, tree); extern tree build_x_conditional_expr (tree, tree, tree); Modified: stable/10/contrib/gcc/cp/decl.c ============================================================================== --- stable/10/contrib/gcc/cp/decl.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/decl.c Thu Dec 12 18:15:32 2013 (r259268) @@ -6702,12 +6702,21 @@ compute_array_index_type (tree name, tre error ("size of array is not an integral constant-expression"); size = integer_one_node; } - else if (pedantic) + else if (pedantic && warn_vla != 0) { if (name) - pedwarn ("ISO C++ forbids variable-size array %qD", name); + pedwarn ("ISO C++ forbids variable length array %qD", name); else - pedwarn ("ISO C++ forbids variable-size array"); + pedwarn ("ISO C++ forbids variable length array"); + } + else if (warn_vla > 0) + { + if (name) + warning (OPT_Wvla, + "variable length array %qD is used", name); + else + warning (OPT_Wvla, + "variable length array is used"); } if (processing_template_decl && !TREE_CONSTANT (size)) Modified: stable/10/contrib/gcc/cp/parser.c ============================================================================== --- stable/10/contrib/gcc/cp/parser.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/parser.c Thu Dec 12 18:15:32 2013 (r259268) @@ -1177,8 +1177,15 @@ typedef enum cp_parser_status_kind typedef struct cp_parser_expression_stack_entry { + /* Left hand side of the binary operation we are currently + parsing. */ tree lhs; + /* Original tree code for left hand side, if it was a binary + expression itself (used for -Wparentheses). */ + enum tree_code lhs_type; + /* Tree code for the binary operation we are parsing. */ enum tree_code tree_type; + /* Precedence of the binary operation we are parsing. */ int prec; } cp_parser_expression_stack_entry; @@ -1536,7 +1543,7 @@ static tree cp_parser_builtin_offsetof /* Statements [gram.stmt.stmt] */ static void cp_parser_statement - (cp_parser *, tree, bool); + (cp_parser *, tree, bool, bool *); static void cp_parser_label_for_labeled_statement (cp_parser *); static tree cp_parser_expression_statement @@ -1546,7 +1553,7 @@ static tree cp_parser_compound_statement static void cp_parser_statement_seq_opt (cp_parser *, tree); static tree cp_parser_selection_statement - (cp_parser *); + (cp_parser *, bool *); static tree cp_parser_condition (cp_parser *); static tree cp_parser_iteration_statement @@ -1559,7 +1566,7 @@ static void cp_parser_declaration_statem (cp_parser *); static tree cp_parser_implicitly_scoped_statement - (cp_parser *); + (cp_parser *, bool *); static void cp_parser_already_scoped_statement (cp_parser *); @@ -5730,12 +5737,13 @@ cp_parser_binary_expression (cp_parser* cp_parser_expression_stack_entry *sp = &stack[0]; tree lhs, rhs; cp_token *token; - enum tree_code tree_type; + enum tree_code tree_type, lhs_type, rhs_type; enum cp_parser_prec prec = PREC_NOT_OPERATOR, new_prec, lookahead_prec; bool overloaded_p; /* Parse the first expression. */ lhs = cp_parser_cast_expression (parser, /*address_p=*/false, cast_p); + lhs_type = ERROR_MARK; for (;;) { @@ -5768,6 +5776,7 @@ cp_parser_binary_expression (cp_parser* /* Extract another operand. It may be the RHS of this expression or the LHS of a new, higher priority expression. */ rhs = cp_parser_simple_cast_expression (parser); + rhs_type = ERROR_MARK; /* Get another operator token. Look up its precedence to avoid building a useless (immediately popped) stack entry for common @@ -5783,8 +5792,10 @@ cp_parser_binary_expression (cp_parser* sp->prec = prec; sp->tree_type = tree_type; sp->lhs = lhs; + sp->lhs_type = lhs_type; sp++; lhs = rhs; + lhs_type = rhs_type; prec = new_prec; new_prec = lookahead_prec; goto get_rhs; @@ -5801,11 +5812,15 @@ cp_parser_binary_expression (cp_parser* prec = sp->prec; tree_type = sp->tree_type; rhs = lhs; + rhs_type = lhs_type; lhs = sp->lhs; + lhs_type = sp->lhs_type; } overloaded_p = false; - lhs = build_x_binary_op (tree_type, lhs, rhs, &overloaded_p); + lhs = build_x_binary_op (tree_type, lhs, lhs_type, rhs, rhs_type, + &overloaded_p); + lhs_type = tree_type; /* If the binary operator required the use of an overloaded operator, then this expression cannot be an integral constant-expression. @@ -6222,17 +6237,23 @@ cp_parser_builtin_offsetof (cp_parser *p try-block IN_COMPOUND is true when the statement is nested inside a - cp_parser_compound_statement; this matters for certain pragmas. */ + cp_parser_compound_statement; this matters for certain pragmas. + + If IF_P is not NULL, *IF_P is set to indicate whether the statement + is a (possibly labeled) if statement which is not enclosed in braces + and has an else clause. This is used to implement -Wparentheses. */ static void cp_parser_statement (cp_parser* parser, tree in_statement_expr, - bool in_compound) + bool in_compound, bool *if_p) { tree statement; cp_token *token; location_t statement_location; restart: + if (if_p != NULL) + *if_p = false; /* There is no statement yet. */ statement = NULL_TREE; /* Peek at the next token. */ @@ -6257,7 +6278,7 @@ cp_parser_statement (cp_parser* parser, case RID_IF: case RID_SWITCH: - statement = cp_parser_selection_statement (parser); + statement = cp_parser_selection_statement (parser, if_p); break; case RID_WHILE: @@ -6522,7 +6543,7 @@ cp_parser_statement_seq_opt (cp_parser* break; /* Parse the statement. */ - cp_parser_statement (parser, in_statement_expr, true); + cp_parser_statement (parser, in_statement_expr, true, NULL); } } @@ -6533,14 +6554,22 @@ cp_parser_statement_seq_opt (cp_parser* if ( condition ) statement else statement switch ( condition ) statement - Returns the new IF_STMT or SWITCH_STMT. */ + Returns the new IF_STMT or SWITCH_STMT. + + If IF_P is not NULL, *IF_P is set to indicate whether the statement + is a (possibly labeled) if statement which is not enclosed in + braces and has an else clause. This is used to implement + -Wparentheses. */ static tree -cp_parser_selection_statement (cp_parser* parser) +cp_parser_selection_statement (cp_parser* parser, bool *if_p) { cp_token *token; enum rid keyword; + if (if_p != NULL) + *if_p = false; + /* Peek at the next token. */ token = cp_parser_require (parser, CPP_KEYWORD, "selection-statement"); @@ -6576,11 +6605,13 @@ cp_parser_selection_statement (cp_parser if (keyword == RID_IF) { + bool nested_if; + /* Add the condition. */ finish_if_stmt_cond (condition, statement); /* Parse the then-clause. */ - cp_parser_implicitly_scoped_statement (parser); + cp_parser_implicitly_scoped_statement (parser, &nested_if); finish_then_clause (statement); /* If the next token is `else', parse the else-clause. */ @@ -6591,8 +6622,28 @@ cp_parser_selection_statement (cp_parser cp_lexer_consume_token (parser->lexer); begin_else_clause (statement); /* Parse the else-clause. */ - cp_parser_implicitly_scoped_statement (parser); + cp_parser_implicitly_scoped_statement (parser, NULL); finish_else_clause (statement); + + /* If we are currently parsing a then-clause, then + IF_P will not be NULL. We set it to true to + indicate that this if statement has an else clause. + This may trigger the Wparentheses warning below + when we get back up to the parent if statement. */ + if (if_p != NULL) + *if_p = true; + } + else + { + /* This if statement does not have an else clause. If + NESTED_IF is true, then the then-clause is an if + statement which does have an else clause. We warn + about the potential ambiguity. */ + if (nested_if) + warning (OPT_Wparentheses, + ("%Hsuggest explicit braces " + "to avoid ambiguous %<else%>"), + EXPR_LOCUS (statement)); } /* Now we're all done with the if-statement. */ @@ -6611,7 +6662,7 @@ cp_parser_selection_statement (cp_parser in_statement = parser->in_statement; parser->in_switch_statement_p = true; parser->in_statement |= IN_SWITCH_STMT; - cp_parser_implicitly_scoped_statement (parser); + cp_parser_implicitly_scoped_statement (parser, NULL); parser->in_switch_statement_p = in_switch_statement_p; parser->in_statement = in_statement; @@ -6789,7 +6840,7 @@ cp_parser_iteration_statement (cp_parser statement = begin_do_stmt (); /* Parse the body of the do-statement. */ parser->in_statement = IN_ITERATION_STMT; - cp_parser_implicitly_scoped_statement (parser); + cp_parser_implicitly_scoped_statement (parser, NULL); parser->in_statement = in_statement; finish_do_body (statement); /* Look for the `while' keyword. */ @@ -7031,13 +7082,21 @@ cp_parser_declaration_statement (cp_pars but ensures that is in its own scope, even if it is not a compound-statement. + If IF_P is not NULL, *IF_P is set to indicate whether the statement + is a (possibly labeled) if statement which is not enclosed in + braces and has an else clause. This is used to implement + -Wparentheses. + Returns the new statement. */ static tree -cp_parser_implicitly_scoped_statement (cp_parser* parser) +cp_parser_implicitly_scoped_statement (cp_parser* parser, bool *if_p) { tree statement; + if (if_p != NULL) + *if_p = false; + /* Mark if () ; with a special NOP_EXPR. */ if (cp_lexer_next_token_is (parser->lexer, CPP_SEMICOLON)) { @@ -7053,7 +7112,7 @@ cp_parser_implicitly_scoped_statement (c /* Create a compound-statement. */ statement = begin_compound_stmt (0); /* Parse the dependent-statement. */ - cp_parser_statement (parser, NULL_TREE, false); + cp_parser_statement (parser, NULL_TREE, false, if_p); /* Finish the dummy compound-statement. */ finish_compound_stmt (statement); } @@ -7072,7 +7131,7 @@ cp_parser_already_scoped_statement (cp_p { /* If the token is a `{', then we must take special action. */ if (cp_lexer_next_token_is_not (parser->lexer, CPP_OPEN_BRACE)) - cp_parser_statement (parser, NULL_TREE, false); + cp_parser_statement (parser, NULL_TREE, false, NULL); else { /* Avoid calling cp_parser_compound_statement, so that we @@ -18645,7 +18704,7 @@ cp_parser_omp_structured_block (cp_parse tree stmt = begin_omp_structured_block (); unsigned int save = cp_parser_begin_omp_structured_block (parser); - cp_parser_statement (parser, NULL_TREE, false); + cp_parser_statement (parser, NULL_TREE, false, NULL); cp_parser_end_omp_structured_block (parser, save); return finish_omp_structured_block (stmt); @@ -18890,7 +18949,7 @@ cp_parser_omp_for_loop (cp_parser *parse /* Note that the grammar doesn't call for a structured block here, though the loop as a whole is a structured block. */ body = push_stmt_list (); - cp_parser_statement (parser, NULL_TREE, false); + cp_parser_statement (parser, NULL_TREE, false, NULL); body = pop_stmt_list (body); return finish_omp_for (loc, decl, init, cond, incr, body, pre_body); @@ -18983,7 +19042,7 @@ cp_parser_omp_sections_scope (cp_parser while (1) { - cp_parser_statement (parser, NULL_TREE, false); + cp_parser_statement (parser, NULL_TREE, false, NULL); tok = cp_lexer_peek_token (parser->lexer); if (tok->pragma_kind == PRAGMA_OMP_SECTION) Modified: stable/10/contrib/gcc/cp/pt.c ============================================================================== --- stable/10/contrib/gcc/cp/pt.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/pt.c Thu Dec 12 18:15:32 2013 (r259268) @@ -9078,7 +9078,13 @@ tsubst_copy_and_build (tree t, return build_x_binary_op (TREE_CODE (t), RECUR (TREE_OPERAND (t, 0)), + (TREE_NO_WARNING (TREE_OPERAND (t, 0)) + ? ERROR_MARK + : TREE_CODE (TREE_OPERAND (t, 0))), RECUR (TREE_OPERAND (t, 1)), + (TREE_NO_WARNING (TREE_OPERAND (t, 1)) + ? ERROR_MARK + : TREE_CODE (TREE_OPERAND (t, 1))), /*overloaded_p=*/NULL); case SCOPE_REF: @@ -9087,7 +9093,14 @@ tsubst_copy_and_build (tree t, case ARRAY_REF: op1 = tsubst_non_call_postfix_expression (TREE_OPERAND (t, 0), args, complain, in_decl); - return build_x_binary_op (ARRAY_REF, op1, RECUR (TREE_OPERAND (t, 1)), + return build_x_binary_op (ARRAY_REF, op1, + (TREE_NO_WARNING (TREE_OPERAND (t, 0)) + ? ERROR_MARK + : TREE_CODE (TREE_OPERAND (t, 0))), + RECUR (TREE_OPERAND (t, 1)), + (TREE_NO_WARNING (TREE_OPERAND (t, 1)) + ? ERROR_MARK + : TREE_CODE (TREE_OPERAND (t, 1))), /*overloaded_p=*/NULL); case SIZEOF_EXPR: Modified: stable/10/contrib/gcc/cp/semantics.c ============================================================================== --- stable/10/contrib/gcc/cp/semantics.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/semantics.c Thu Dec 12 18:15:32 2013 (r259268) @@ -587,6 +587,16 @@ maybe_convert_cond (tree cond) /* Do the conversion. */ cond = convert_from_reference (cond); + + if (TREE_CODE (cond) == MODIFY_EXPR + && !TREE_NO_WARNING (cond) + && warn_parentheses) + { + warning (OPT_Wparentheses, + "suggest parentheses around assignment used as truth value"); + TREE_NO_WARNING (cond) = 1; + } + return condition_conversion (cond); } Modified: stable/10/contrib/gcc/cp/tree.c ============================================================================== --- stable/10/contrib/gcc/cp/tree.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/tree.c Thu Dec 12 18:15:32 2013 (r259268) @@ -1762,6 +1762,14 @@ pod_type_p (tree t) return 1; } +/* Nonzero iff type T is a class template implicit specialization. */ + +bool +class_tmpl_impl_spec_p (tree t) +{ + return CLASS_TYPE_P (t) && CLASSTYPE_TEMPLATE_INSTANTIATION (t); +} + /* Returns 1 iff zero initialization of type T means actually storing zeros in it. */ Modified: stable/10/contrib/gcc/cp/typeck.c ============================================================================== --- stable/10/contrib/gcc/cp/typeck.c Thu Dec 12 18:08:31 2013 (r259267) +++ stable/10/contrib/gcc/cp/typeck.c Thu Dec 12 18:15:32 2013 (r259268) @@ -1690,17 +1690,20 @@ rationalize_conditional_expr (enum tree_ are equal, so we know what conditional expression this used to be. */ if (TREE_CODE (t) == MIN_EXPR || TREE_CODE (t) == MAX_EXPR) { + tree op0 = TREE_OPERAND (t, 0); + tree op1 = TREE_OPERAND (t, 1); + /* The following code is incorrect if either operand side-effects. */ - gcc_assert (!TREE_SIDE_EFFECTS (TREE_OPERAND (t, 0)) - && !TREE_SIDE_EFFECTS (TREE_OPERAND (t, 1))); + gcc_assert (!TREE_SIDE_EFFECTS (op0) + && !TREE_SIDE_EFFECTS (op1)); return build_conditional_expr (build_x_binary_op ((TREE_CODE (t) == MIN_EXPR ? LE_EXPR : GE_EXPR), - TREE_OPERAND (t, 0), - TREE_OPERAND (t, 1), + op0, TREE_CODE (op0), + op1, TREE_CODE (op1), /*overloaded_p=*/NULL), - build_unary_op (code, TREE_OPERAND (t, 0), 0), - build_unary_op (code, TREE_OPERAND (t, 1), 0)); + build_unary_op (code, op0, 0), + build_unary_op (code, op1, 0)); } return @@ -2908,8 +2911,8 @@ convert_arguments (tree typelist, tree v conversions on the operands. CODE is the kind of expression to build. */ tree -build_x_binary_op (enum tree_code code, tree arg1, tree arg2, - bool *overloaded_p) +build_x_binary_op (enum tree_code code, tree arg1, enum tree_code arg1_code, + tree arg2, enum tree_code arg2_code, bool *overloaded_p) { tree orig_arg1; tree orig_arg2; @@ -2933,6 +2936,17 @@ build_x_binary_op (enum tree_code code, expr = build_new_op (code, LOOKUP_NORMAL, arg1, arg2, NULL_TREE, overloaded_p); + /* Check for cases such as x+y<<z which users are likely to + misinterpret. But don't warn about obj << x + y, since that is a + common idiom for I/O. */ + if (warn_parentheses + && !processing_template_decl + && !error_operand_p (arg1) + && !error_operand_p (arg2) + && (code != LSHIFT_EXPR + || !IS_AGGR_TYPE (TREE_TYPE (arg1)))) + warn_about_parentheses (code, arg1_code, arg2_code); + if (processing_template_decl && expr != error_mark_node) return build_min_non_dep (code, expr, orig_arg1, orig_arg2); *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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