* flags.h (flag_wrapv): New flag controlling overflow semantics.
* toplev.c (flag_wrapv): Declare the variable with default false.
(lang_independent_options): New option "-fwrapv" to set the above.
* fold-const.c (extract_muldiv_1): Disable optimization of (2*x)/2
as x, when signed arithmetic overflow wraps around.
(fold): Optimize "-A - B" as "-B - A" if overflow wraps around.
* loop.c (basic_induction_var): Ignore BIVs that rely on undefined
overflow when flag_wrapv is true.
* java/lang.c (java_init_options): Prescribe wrap-around two's
complement arithmetic overflow by setting flag_wrapv.
* doc/invoke.texi: Document new -fwrapv command line option.
* doc/c-tree.texi: Mention that the overflow semantics of
NEGATE_EXPR, PLUS_EXPR, MINUS_EXPR and MULT_EXPR is dependent
upon both flag_wrapv and flag_trapv.
* gcc.dg/fwrapv-1.c: New test case.
* gcc.dg/fwrapv-2.c: New test case.
* libjava.lang/Overflow.java: New test.
* libjava.lang/Overflow.out: New file.
From-SVN: r67270
* decl.c (cp_binding_level::this_entity): Rename from this_class.
(cxx_scope_descriptor): New function.
(cxx_scope_debug): Likewise.
(push_binding_level): Use it.
(pop_binding_level): Likewise.
(suspend_binding_level): Likewise.
(resume_binding_level): Likewise.
(pushlevel_class): Adjust use of this_class.
(pushtag): Likewise.
(lookup_name_real): Likewise.
(global_scope_name): New variable.
(initialize_predefined_identifiers): Initialize it.
(push_namespace): Use it.
(make_cxx_scope): New function.
(pushlevel): Use it.
(pushlevel_class): Likewise.
(push_binding_level): Simplify. Loose the last two arguments.
(make_binding_level): Remove.
(initial_push__namespace_scope): New function.
(push_namespace): Use it. Simplify.
(cxx_init_decl_processing): Likewise.
(declare_namespace_level): Remove.
From-SVN: r67269
PR c++/10956
* pt.c (instantiate_decl): Don't use full template arguments if
we are dealing with specializations.
* g++.dg/template/spec9.C: New test.
From-SVN: r67268
* com.c (ffecom_init_0): Define built-in functions for tan and atan.
* com-rt.def: Use then to implement g77's tan and atan intrinsics.
From-SVN: r67260
* emit-rtl.c (gen_complex_constant_part): New function for getting
the constant real or imaginary part of a complex constant.
(gen_realpart): Use it.
(gen_imagpart): Likewise.
From-SVN: r67252
* config/h8300/crti.asm: Use .h8300hn and .h8300sn for normal
mode.
* config/h8300/crtn.asm: Likewise.
* config/h8300/lib1funcs.asm: Likewise.
* config/h8300/h8300.c (asm_file_start): Likewise.
* config/h8300/elf.h (LINK_SPEC): Use h8300hnelf and
h8300snelf emulations for normal mode.
* config/h8300/h8300.h (LINK_SPEC): Use h8300hn and h8300sn
emulations for normal mode.
From-SVN: r67250
2003-05-30 Phil Edwards <pme@gcc.gnu.org>
* docs/doxygen/filter: New file.
* docs/doxygen/filter.sed: New file.
* docs/doxygen/run_doxygen: Add g flag to sed substitutions. Duh.
* docs/doxygen/user.cfg.in (INPUT_FILTER): Point to new filter.
* docs/html/documentation.html: Fix links to doxygen pages.
From-SVN: r67249
* cse.c (cse_insn): Simplify REG_EQUAL note on libcalls when
making a substitution.
(dead_libcall_p): If directly replacing a libcall with a
constant value produces an invalid instruction, also try forcing
the constant into the constant pool.
* expr.c (emit_move_insn): Add a REG_EQUAL note when it is not
obvious that the source is a constant.
(compress_float_constant): Use set_unique_reg_note to place
REG_EQUAL notes on instructions.
From-SVN: r67247
2003-05-30 Eric Christopher <echristo@redhat.com>
* config/mips/mips.c (extern_list): Add GTY marker.
(extern_head): Separate out definition. Add marker.
(mips_output_external): Use ggc_alloc for extern_list
allocation.
(mips_output_external_libcall): Ditto.
From-SVN: r67245
PR bootstrap/10169
* mips-tfile.c (main): Use getopt_long instead of getopt.
Add new command line option --version to display version.
Treat --verbose like -v to report a single line version.
(options): New global variable for getopt_long.
* mips-tdump.c (main): Use getopt_long instead of getopt.
New command line options -v, --version and -verbose to display
the program version number (to match mips-tfile's behavior).
(options): New global variable for getopt_long.
* gcov.c (options): Zero-terminate getopt_long array.
* gcov-dump.c (options): Likewise.
* Makefile.in (mips-tdump.o): Add dependency on version.h.
Co-Authored-By: Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
From-SVN: r67230
* builtins.c (cos_builtin, sin_builtin, sqrt_builtin): Delete.
(builtin_record): Add an additional builtin_code field to
record which GCC built-in corresponds to the Java function.
(java_builtins): Add new entries for atan, atan2, exp, log,
pow and tan.
(max_builtin, min_builtin, abs_builtin): Perform constant
folding on the resulting tree.
(java_build_function_call_expr): Likewise, perform constant
folding on the resulting tree.
(initialize_builtins): The NULL creators are now allowed in
the java_builtins table, which is now terminated by an entry
with builtin_code == END_BUILTINS.
(check_for_builtin): Likewise. If the matching creator is
NULL, construct the call using java_build_function_call_expr
directly with the decl for the corresponding builtin_code.
From-SVN: r67225
* c-semantics.c (genrtl_do_stmt_1): New function split out from...
(gen_rtl_do_stmt): ... here. Call genrtl_do_stmt_1.
(expand_unreachable_stmt): Expand unreachable while statements
using genrtl_do_stmt_1.
* gcc.dg/duff-4.c: New test case.
From-SVN: r67224
* config/mips/mips-protos.h (mips_output_load_label): Declare.
* config/mips/mips.c (mips_output_load_label): New function.
(mips_output_conditional_branch): Use it.
* config/mips/mips.md (jump): And here.
From-SVN: r67220
* config.gcc (i[34567]86-*-mingw32*): Add host makefile
fragment i386/x-mingw32.
* config/i386/x-mingw32: New file. Make local_includedir
relative to EXEC_PREFIX.
From-SVN: r67213
* cselib.c (cselib_invalidate_regno): Abort if hardreg have a
VOIDmode.
* cselib.c (cselib_process_insn): Pass reg_raw_mode for hardreg in
call of cselib_invalidate_regno.
From-SVN: r67210
* fixinc/inclhack.def: Add missing declaration of getpagesize()
to unistd.h on Solaris 2.5.1.
Fix prototype of recv() and send() in sys/socket.h on
Solaris 2.5.1 and 2.6.
* fixinc/tests/base/unistd.h: Add solaris_unistd fix test.
* fixinc/tests/base/sys/socket.h: Add solaris_socket test.
* fixinc/check.tpl: Use 'diff -c', not 'diff -u'.
* fixinc/fixincl.x: Regenerate.
From-SVN: r67206
* snapshot-README: Refer to .bz2 files instead of .gz files.
Add a note on where to find the diff files.
Simplify the note on not using unannounced snapshots.
Remove documentation of the gcc_latest_snapshot tag.
From-SVN: r67205
