re PR go/72814 (reflect FAILs on 32-bit Solaris/SPARC: SIGILL)
PR go/72814
runtime: treat zero-sized result value as void
Change the FFI interface to treat a call to a function that returns a
zero-sized result as a call to a function that returns void.
This is part of the fix for https://gcc.gnu.org/PR72814. On 32-bit
SPARC systems, a call to a function that returns a non-zero-sized struct
is followed by an unimp instruction that describes the size of the
struct. The function returns to the address after the unimp
instruction. The libffi library can not represent a zero-sized struct,
so we wind up treating it as a 1-byte struct. Thus in that case libffi
calls the function with an unimp instruction, but the function does not
adjust the return address. The result is that the program attempts to
execute the unimp instruction, causing a crash.
This is part of a change that fixes the crash by treating all functions
that return zero bytes as functions that return void.
* go-gcc.cc (Gcc_backend::function_type): If the return type is
zero bytes, treat the function as returning void.
(return_statement): If the return type is zero bytes, don't
actually return any values.
Jakub Jelinek [Mon, 8 Aug 2016 19:45:53 +0000 (21:45 +0200)]
re PR middle-end/68762 (link error for inline function decorated with OpenMP declare simd)
PR middle-end/68762
* omp-simd-clone.c: Include varasm.h.
(simd_clone_create): Copy over DECL_COMDAT, DECL_WEAK, DECL_EXTERNAL,
DECL_VISIBILITY, DECL_VISIBILITY_SPECIFIED, DECL_DLLIMPORT_P and for
DECL_ONE_ONLY call make_decl_one_only. Fix up spelling in comment and
update function name.
* g++.dg/vect/pr68762-1.cc: New test.
* g++.dg/vect/pr68762-2.cc: New test.
* g++.dg/vect/pr68762.h: New file.
David Malcolm [Mon, 8 Aug 2016 18:10:54 +0000 (18:10 +0000)]
c-format.c: cleanup of check_format_info_main
gcc/c-family/ChangeLog:
* c-format.c (class flag_chars_t): New class.
(struct length_modifier): New struct.
(class argument_parser): New class.
(flag_chars_t::flag_chars_t): New ctor.
(flag_chars_t::has_char_p): New method.
(flag_chars_t::add_char): New method.
(flag_chars_t::validate): New method.
(flag_chars_t::get_alloc_flag): New method.
(flag_chars_t::assignment_suppression_p): New method.
(argument_parser::argument_parser): New ctor.
(argument_parser::read_any_dollar): New method.
(argument_parser::read_format_flags): New method.
(argument_parser::read_any_format_width): New method.
(argument_parser::read_any_format_left_precision): New method.
(argument_parser::read_any_format_precision): New method.
(argument_parser::handle_alloc_chars): New method.
(argument_parser::read_any_length_modifier): New method.
(argument_parser::read_any_other_modifier): New method.
(argument_parser::find_format_char_info): New method.
(argument_parser::validate_flag_pairs): New method.
(argument_parser::give_y2k_warnings): New method.
(argument_parser::parse_any_scan_set): New method.
(argument_parser::handle_conversions): New method.
(argument_parser::check_argument_type): New method.
(check_format_info_main): Introduce classes argument_parser
and flag_chars_t, moving the code within the loop into methods
of these classes. Make various locals "const".
Alan Modra [Mon, 8 Aug 2016 09:06:49 +0000 (18:36 +0930)]
[RS6000] PR72802 part 2, reload ICE
After fixing the constraint problem, we hit an "insn does not satisfy
its constraints" with -mno-lra on the following insn, a vector load
from mem which has an invalid offset:
(insn 631 630 1122 12 (set (reg:SF 108 31 [orig:260 pretmp_44 ] [260])
(mem:SF (plus:DI (reg:DI 30 30 [orig:338 ivtmp.141 ] [338])
(const_int 2 [0x2])) [5 MEM[base: _1, offset: 2B]+0 S4 A32])) 470 {movsf_hardfloat}
(nil))
Here are the reload costs for the various alternatives of
movsf_hardfloat:
"=!r, !r, m, f, ww, ww, !r, f, wb, m, wY, wu, Z,?wn, ?r,*c*l, !r, *h"
"r, m, r, f, ww, j, j, m, wY, f, wb, Z, wu, r, wn, r, *h, 0"
617 609 17 17 8 8 617 9 8 17 17 8 17 23 23 17 617 17
Notice that the cost for a vector<-vector move (ww,ww) is the same as
the cost for a vector<-mem move (wb,wY or wu,Z). Since the
vector<-vector move comes first, it is chosen and the mem part of the
insn reloaded. That just gives another copy of insn 631.
PR target/72802
* config/rs6000/rs6000.md (mov<mode>_hardfloat): Sort
alternatives. Put loads first, then stores, and reg/reg moves
within same class later. Delete attr length.
testsuite/
* gcc.c-torture/compile/pr72802.c: New.
Alan Modra [Mon, 8 Aug 2016 09:05:16 +0000 (18:35 +0930)]
[RS6000] PR72802 part 1, fix constraints for lxssp/stxssp
We can't use "o" constraint for lsxxp/stxssp since those insns have a
DS-form offset field, ie. the bottom two bits of the offset must be 0.
So use "wY" instead, but that leads to finding another problem.
mem_operand_gpr is only suitable for gpr loads/stores since it does
not enforce multiple-of-4 offsets when -m32. So "wY" can't use
mem_operand_gpr, and the vsx tests in mem_operand_gpr are bogus.
I've deleted offsettable_mem_14bit_operand because it wasn't used
anywhere but in the wY constraint. Note also that the new wY
constraint doesn't use memory_operand because that is redundant in a
constraint, having already been tested in the predicate.
PR target/72802
* config/rs6000/rs6000.c (mem_operand_gpr): Remove vsx dform test.
(mem_operand_ds_form): New predicate.
* config/rs6000/rs6000-protos.h (mem_operand_ds_form): Declare.
* config/rs6000/constraints.md (wY): Use mem_operand_df_form.
* config/rs6000/predicates.md (offsettable_mem_14bit_operand): Delete.
* config/rs6000/rs6000.md (f32_lm2, f32_sm2): Use wY for SF.
(extendsfdf2_fpr): Replace o constraint with wY.
re PR fortran/70524 (ICE when using -frepack-arrays -Warray-temporaries)
gcc/testsuite/ChangeLog:
2016-08-08 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/70524
* gfortran.dg/dependency_48.f90: New test.
gcc/fortran/ChangeLog:
2016-08-08 Andre Vehreschild <vehre@gcc.gnu.org>
PR fortran/70524
* trans-array.c (gfc_trans_dummy_array_bias): Ensure that the
location information is correctly set.
* trans-decl.c (gfc_trans_deferred_vars): Set the locus of the
current construct early.
Jan Hubicka [Sun, 7 Aug 2016 10:50:16 +0000 (12:50 +0200)]
tree-ssa-threadbackward.c: Include tree-inline.h
* tree-ssa-threadbackward.c: Include tree-inline.h
(profitable_jump_thread_path): Use estimate_num_insns to estimate
size of copied block; for cold paths reduce duplication.
(find_jump_threads_backwards): Remove redundant tests.
(pass_thread_jumps::gate): Enable for -Os.
* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Update testcase.
Jakub Jelinek [Sun, 7 Aug 2016 09:49:14 +0000 (11:49 +0200)]
re PR c/72816 (ICE on x86_64-linux-gnu (tree check: expected tree that contains ‘decl with RTL’ structure, have ‘field_decl’ in set_decl_rtl, at emit-rtl.c:1282))
PR c/72816
* stor-layout.c (layout_decl): Fix up formatting.
(relayout_decl): Allow DECL to be FIELD_DECL.
* tree-ssa-ccp.c (extend_mask): New param sgn.
Remove ORing with wi::mask.
(get_default_value): Adjust call to extend_mask to pass sign.
(evaluate_stmt): Likewise.
David Malcolm [Sat, 6 Aug 2016 18:06:30 +0000 (18:06 +0000)]
Fix crash in selftest::test_lexer_string_locations_ucn4 (PR bootstrap/72823)
libcpp/ChangeLog:
PR bootstrap/72823
* charset.c (_cpp_valid_ucn): Replace overzealous assert with one
that allows for char_range to be non-NULL when loc_reader is NULL.
Previously the libgo Makefile explicitly listed the set of files to
compile for each package. For packages that use build tags, this
required a lot of awkward automake conditionals in the Makefile.
This CL changes the build to look at the build tags in the files.
The new shell script libgo/match.sh does the matching. This required
adjusting a lot of build tags, and removing some files that are never
used. I verified that the exact same sets of files are compiled on
amd64 GNU/Linux. I also tested the build on i386 Solaris.
Writing match.sh revealed some bugs in the build tag handling that
already exists, in a slightly different form, in the gotest shell
script. This CL fixes those problems as well.
The old code used automake conditionals to handle systems that were
missing strerror_r and wait4. Rather than deal with those in Go, those
functions are now implemented in runtime/go-nosys.c when necessary, so
the Go code can simply assume that they exist.
The os testsuite looked for dir_unix.go, which was never built for gccgo
and has now been removed. I changed the testsuite to look for dir.go
instead.
Patrick Palka [Fri, 5 Aug 2016 23:29:53 +0000 (23:29 +0000)]
Improve forward jump threading of switch statements (PR18046)
gcc/ChangeLog:
PR tree-optimization/18046
* tree-ssa-threadedge.c: Include cfganal.h.
(simplify_control_statement_condition): If simplifying a
GIMPLE_SWITCH, replace the index operand of the GIMPLE_SWITCH
with the dominating ASSERT_EXPR before handing it off to VRP.
Mention that a CASE_LABEL_EXPR may be returned.
(thread_around_empty_blocks): Adjust to handle
simplify_control_statement_condition() returning a
CASE_LABEL_EXPR.
(thread_through_normal_block): Likewise.
* tree-vrp.c (simplify_stmt_for_jump_threading): Simplify
a switch statement by trying to determine which case label
will be taken.
gcc/testsuite/ChangeLog:
PR tree-optimization/18046
* gcc.dg/tree-ssa/vrp105.c: New test.
* gcc.dg/tree-ssa/vrp106.c: New test.
re PR rtl-optimization/69847 (Spec 2006 403.gcc slows down with -mlra vs. reload on PowerPC)
2016-08-05 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/69847
* lra-constraints.c (process_invariant_for_inheritance): Save
pattern instead of src.
(remove_inheritance_pseudos): Use the pattern. Add assert.
PR go/72812
* go-gcc.cc (char_needs_encoding): New static function.
(needs_encoding, fetch_utf8_char): New static functions.
(encode_id): New static function.
(Gcc_backend::global_variable): Set asm name if the name is not
simple ASCII.
(Gcc_backend::implicit_variable): Likewise.
(Gcc_backend::implicit_variable_reference): Likewise.
(Gcc_backend::immutable_struct): Likewise.
(Gcc_backend::immutable_struct_reference): Likewise.
(Gcc_backend::function): Likewise.
Martin Sebor [Fri, 5 Aug 2016 18:27:46 +0000 (18:27 +0000)]
constexpr.c (cxx_eval_store_expression): Remove hyphen from the spelling of "constant-expression" in diagnostic messages...
gcc/cp/ChangeLog:
* constexpr.c (cxx_eval_store_expression): Remove hyphen from
the spelling of "constant-expression" in diagnostic messages
for consistency.
(cxx_eval_constant_expression): Same.
(cxx_eval_outermost_constant_expr): Same.
(potential_constant_expression_1): Same.
David Malcolm [Fri, 5 Aug 2016 18:08:33 +0000 (18:08 +0000)]
On-demand locations within string-literals
gcc/c-family/ChangeLog:
* c-common.c: Include "substring-locations.h".
(get_cpp_ttype_from_string_type): New function.
(g_string_concat_db): New global.
(substring_loc::get_range): New method.
* c-common.h (g_string_concat_db): New declaration.
(class substring_loc): New class.
* c-lex.c (lex_string): When concatenating strings, capture the
locations of all tokens using a new obstack, and record the
concatenation locations within g_string_concat_db.
* c-opts.c (c_common_init_options): Construct g_string_concat_db
on the ggc-heap.
gcc/ChangeLog:
* input.c (string_concat::string_concat): New constructor.
(string_concat_db::string_concat_db): New constructor.
(string_concat_db::record_string_concatenation): New method.
(string_concat_db::get_string_concatenation): New method.
(string_concat_db::get_key_loc): New method.
(class auto_cpp_string_vec): New class.
(get_substring_ranges_for_loc): New function.
(get_source_range_for_substring): New function.
(get_num_source_ranges_for_substring): New function.
(class selftest::lexer_test_options): New class.
(struct selftest::lexer_test): New struct.
(class selftest::ebcdic_execution_charset): New class.
(selftest::ebcdic_execution_charset::s_singleton): New variable.
(selftest::lexer_test::lexer_test): New constructor.
(selftest::lexer_test::~lexer_test): New destructor.
(selftest::lexer_test::get_token): New method.
(selftest::assert_char_at_range): New function.
(ASSERT_CHAR_AT_RANGE): New macro.
(selftest::assert_num_substring_ranges): New function.
(ASSERT_NUM_SUBSTRING_RANGES): New macro.
(selftest::assert_has_no_substring_ranges): New function.
(ASSERT_HAS_NO_SUBSTRING_RANGES): New macro.
(selftest::test_lexer_string_locations_simple): New function.
(selftest::test_lexer_string_locations_ebcdic): New function.
(selftest::test_lexer_string_locations_hex): New function.
(selftest::test_lexer_string_locations_oct): New function.
(selftest::test_lexer_string_locations_letter_escape_1): New function.
(selftest::test_lexer_string_locations_letter_escape_2): New function.
(selftest::test_lexer_string_locations_ucn4): New function.
(selftest::test_lexer_string_locations_ucn8): New function.
(selftest::uint32_from_big_endian): New function.
(selftest::test_lexer_string_locations_wide_string): New function.
(selftest::uint16_from_big_endian): New function.
(selftest::test_lexer_string_locations_string16): New function.
(selftest::test_lexer_string_locations_string32): New function.
(selftest::test_lexer_string_locations_u8): New function.
(selftest::test_lexer_string_locations_utf8_source): New function.
(selftest::test_lexer_string_locations_concatenation_1): New
function.
(selftest::test_lexer_string_locations_concatenation_2): New
function.
(selftest::test_lexer_string_locations_concatenation_3): New
function.
(selftest::test_lexer_string_locations_macro): New function.
(selftest::test_lexer_string_locations_stringified_macro_argument):
New function.
(selftest::test_lexer_string_locations_non_string): New function.
(selftest::test_lexer_string_locations_long_line): New function.
(selftest::test_lexer_char_constants): New function.
(selftest::input_c_tests): Call the new test functions once per
case within the line_table test matrix.
* input.h (struct string_concat): New struct.
(struct location_hash): New struct.
(class string_concat_db): New class.
* substring-locations.h: New header.
gcc/testsuite/ChangeLog:
* gcc.dg/plugin/diagnostic-test-string-literals-1.c: New file.
* gcc.dg/plugin/diagnostic-test-string-literals-2.c: New file.
* gcc.dg/plugin/diagnostic_plugin_test_string_literals.c: New file.
* gcc.dg/plugin/plugin.exp (plugin_test_list): Add the above new files.
libcpp/ChangeLog:
* charset.c (cpp_substring_ranges::cpp_substring_ranges): New
constructor.
(cpp_substring_ranges::~cpp_substring_ranges): New destructor.
(cpp_substring_ranges::add_range): New method.
(cpp_substring_ranges::add_n_ranges): New method.
(_cpp_valid_ucn): Add "char_range" and "loc_reader" params; if
they are non-NULL, read position information from *loc_reader
and update char_range->m_finish accordingly.
(convert_ucn): Add "char_range", "loc_reader", and "ranges"
params. If loc_reader is non-NULL, read location information from
it, and update *ranges accordingly, using char_range.
Conditionalize the conversion into tbuf on tbuf being non-NULL.
(convert_hex): Likewise, conditionalizing the call to
emit_numeric_escape on tbuf.
(convert_oct): Likewise.
(convert_escape): Add params "loc_reader" and "ranges". If
loc_reader is non-NULL, read location information from it, and
update *ranges accordingly. Conditionalize the conversion into
tbuf on tbuf being non-NULL.
(cpp_interpret_string): Rename to...
(cpp_interpret_string_1): ...this, adding params "loc_readers" and
"out". Use "to" to conditionalize the initialization and usage of
"tbuf", such as running the converter. If "loc_readers" is
non-NULL, use the instances within it, reading location
information from them, and passing them to convert_escape; likewise
write to "out" if loc_readers is non-NULL. Check for leading
quote and issue an error if it is not present. Update boundary
check from "== limit" to ">= limit" to protect against erroneous
location values to calls that are not parsing string literals.
(cpp_interpret_string): Reimplement in terms to
cpp_interpret_string_1.
(noop_error_cb): New function.
(cpp_interpret_string_ranges): New function.
(cpp_string_location_reader::cpp_string_location_reader): New
constructor.
(cpp_string_location_reader::get_next): New method.
* include/cpplib.h (class cpp_string_location_reader): New class.
(class cpp_substring_ranges): New class.
(cpp_interpret_string_ranges): New prototype.
* internal.h (_cpp_valid_ucn): Add params "char_range" and
"loc_reader".
* lex.c (forms_identifier_p): Pass NULL for new params to
_cpp_valid_ucn.
PR Target/72819
* gcc.target/aarch64/aapcs64/abitest-common.h: Define half-precision
registers.
* gcc.target/aarch64/aapcs64/abitest.S (dumpregs): Add assembly for
saving the half-precision registers.
* gcc.target/aarch64/aapcs64/func-ret-1.c: Test that an __fp16
value is returned in h0.
* gcc.target/aarch64/aapcs64/test_2.c: Check that __FP16 arguments
are passed in FP/SIMD registers.
* gcc.target/aarch64/aapcs64/test_27.c: New, test that __fp16 HFA
passing works corrcetly.
* gcc.target/aarch64/aapcs64/type-def.h (hfa_f16x1_t): New.
(hfa_f16x2_t): Likewise.
(hfa_f16x3_t): Likewise.
* gcc.target/aarch64/aapcs64/va_arg-1.c: Check that __fp16 values
are promoted to double and passed in a double register.
* gcc.target/aarch64/aapcs64/va_arg-2.c: Check that __fp16 values
are promoted to double and stacked.
* gcc.target/aarch64/aapcs64/va_arg-4.c: Check stacking of HFA of
__fp16 data types.
* gcc.target/aarch64/aapcs64/va_arg-5.c: Likewise.
* gcc.target/aarch64/aapcs64/va_arg-16.c: New, check HFAs of
__fp16 first get passed in FP/SIMD registers, then stacked.
Martin Liska [Fri, 5 Aug 2016 13:50:49 +0000 (15:50 +0200)]
gcov tool: Implement Hawick's algorithm for cycle detection,
Joshua Cranmer <Pidgeot18@gmail.com>
* gcov.c (line_t::has_block): New function.
(enum loop_type): New enum.
(handle_cycle): New function.
(unblock): Likewise.
(circuit): Likewise.
(get_cycles_count): Likewise.
(accumulate_line_counts): Use new loop detection algorithm.
Jonathan Wakely [Fri, 5 Aug 2016 09:00:34 +0000 (10:00 +0100)]
Use __invoke in std::function internals
* include/std/functional (__callable_functor): Remove.
(_Function_handler::_M_invoke): Use __invoke instead of
__callable_functor or mem_fn.
(function::_Callable): Use lvalue in result_of expression.
(function): Remove TODO comments about allocators.
* testsuite/20_util/function/cons/refqual.cc: New test.
Richard Biener [Fri, 5 Aug 2016 07:41:45 +0000 (07:41 +0000)]
tree-cfgcleanup.c (tree_forwarder_block_p): Use bb_loop_header_p.
2016-08-05 Richard Biener <rguenther@suse.de>
* tree-cfgcleanup.c (tree_forwarder_block_p): Use bb_loop_header_p.
* cfghooks.c (force_nonfallthru): If we ended up splitting a latch
adjust loop info accordingly.
David Malcolm [Thu, 4 Aug 2016 21:12:52 +0000 (21:12 +0000)]
selftest.h: Add ASSERT_TRUE_AT and ASSERT_FALSE_AT
gcc/ChangeLog:
* selftest.h (ASSERT_TRUE): Reimplement in terms of...
(ASSERT_TRUE_AT): New macro.
(ASSERT_FALSE): Reimplement in terms of...
(ASSERT_FALSE_AT): New macro.
(ASSERT_STREQ_AT): Fix typo in comment.
Paolo Carlini [Thu, 4 Aug 2016 19:22:58 +0000 (19:22 +0000)]
re PR c++/72800 (ICE on invalid C++14 code with initialized lambda capture: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in add_capture, at cp/lambda.c:505)
/cp
2016-08-04 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/72800
* lambda.c (add_capture): Check lambda_capture_field_type return
value for error_mark_node.
/testsuite
2016-08-04 Paolo Carlini <paolo.carlini@oracle.com>
Patrick Palka [Thu, 4 Aug 2016 18:11:08 +0000 (18:11 +0000)]
Designate the widest case label to be the default label
gcc/ChangeLog:
* gimple.c (preprocess_case_label_vec_for_gimple): When the case
labels are exhaustive, designate the label with the widest
range to be the default label.
Marcel Böhme [Thu, 4 Aug 2016 16:53:18 +0000 (16:53 +0000)]
re PR c++/71696 (Libiberty Demangler segfaults (6))
2016-08-04 Marcel Böhme <boehme.marcel@gmail.com>
PR c++/71696
* cplus-dem.c: Prevent infinite recursion when there is a cycle
in the referencing of remembered mangled types.
(work_stuff): New stack to keep track of the remembered mangled
types that are currently being processed.
(push_processed_type): New method to push currently processed
remembered type onto the stack.
(pop_processed_type): New method to pop currently processed
remembered type from the stack.
(work_stuff_copy_to_from): Copy values of new variables.
(delete_non_B_K_work_stuff): Free stack memory.
(demangle_args): Push/Pop currently processed remembered type.
(do_type): Do not demangle a cyclic reference and push/pop
referenced remembered type.
When using gccgo on systems without full support for split stacks a
recursive template can overrun the available stack space. Reduce the
limit from 100000 to 10000 to make this less likely. It's still high
enough that real uses will work.
Thomas Schwinge [Thu, 4 Aug 2016 13:35:19 +0000 (15:35 +0200)]
C/C++: Simplify handling of location information for OpenACC routine directives
gcc/c/
* c-parser.c (struct oacc_routine_data): New.
(c_parser_declaration_or_fndef, c_parser_oacc_routine): Use it.
Simplify code.
(c_finish_oacc_routine): Likewise. Don't attach clauses to "omp
declare target" attribute.
gcc/cp/
* parser.h (struct cp_omp_declare_simd_data): New.
(struct cp_parser): Use it for oacc_routine member.
* parser.c (cp_ensure_no_oacc_routine, cp_parser_oacc_routine)
(cp_parser_late_parsing_oacc_routine, cp_finalize_oacc_routine):
Use it. Simplify code.
(cp_parser_new): Initialize all members pointing to special
parsing data structures.
(cp_parser_cilk_simd_fn_vector_attrs): Initialize
parser->cilk_simd_fn_info->clauses.
(cp_parser_omp_declare_simd): Initialize
parser->omp_declare_simd->clauses.
(cp_parser_late_parsing_omp_declare_simd): Simplify code.
PR rtl-optimization/71779
* emit-rtl.c (set_reg_attrs_from_value): Only propagate REG_POINTER,
if the value was sign-extended according to POINTERS_EXTEND_UNSIGNED
or if it was truncated.
* testsuite/20_util/enable_shared_from_this/members/reinit.cc: Use
effective target not dg-options. Move check for feature-test macro to:
* testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
New test.
* tree-vrp.c (set_value_range): Use vrp_equiv_obstack with
BITMAP_ALLOC.
(add_equivalence): Likewise.
(get_value_range): Allocate value range with vrp_value_range_pool.
(vrp_initialize): Initialize vrp_equiv_obstack for equiv allocation.
(vrp_finalize): Relase vrp_equiv_obstack and vrp_value_range_pool.
The code that handled +build lines did not correctly require them to all
be true. While looking into this I discovered that multiple +build
lines were mishandled in a different way, because the shell does not
preseve line breaks in backquoted data. Look for the +build token to
tell us when we are switching from one +build line to another.
compiler: improve type caching for interface types
Add a cached to Interface_info_expression::do_type() so as to reuse
previously created interface types. This change reduces gccgo peak heap
usage when compiling the "fmt" package from around 16mb to around 10mb.
Jonathan Wakely [Wed, 3 Aug 2016 19:10:06 +0000 (20:10 +0100)]
Define feature-test macro for std::enable_shared_from_this
* include/bits/shared_ptr_base.h (__cpp_lib_enable_shared_from_this):
Define feature-test macro.
* testsuite/20_util/enable_shared_from_this/members/reinit.cc: Test
for the macro.
PR middle-end/71876
* calls.c (special_function_p): Remove special handling of
"setjmp_syscall", "qsetjmp", "longjmp", "siglongjmp" and the
prefix "__x". Recognize "savectx", "vfork" and "getcontext" only
without prefix. Remove potentially unsafe ECF_LEAF and ECF_NORETURN.
projects / thirdparty / gcc.git / log
