* passes.c (ipa_write_summaries_1): Set state;
do not call compute_ltrans_boundary.
(ipa_write_optimization_summaries): Likewise.
(ipa_write_summaries): compute_ltrans_boundary here.
* lto-streamer.h (lto_symtab_encoder_d): NODES are allocated in heap.
(compute_ltrans_boundary): Update prototype.
* lto.c (lto_wpa_write_files): Do not delete partition encoder;
it is deleted after streaming.
* lto-partition.c (partition_symbol_p): New function.
(promote_var, promote_fn): Remove.
(promote_symbol): New function.
(lto_promote_cross_file_statics): First compute boundaries; rewrite
to lookup the actual boundaries instead of computing them ad-hoc.
2012-09-09 Ulrich Drepper <drepper@gmail.com>
Dominique d'Humieres <dominiq@lps.ens.fr>
Jack Howarth <howarth@bromo.med.uc.edu>
PR bootstrap/54419
* acinclude.m4: Define GLIBCXX_CHECK_X86_RDRAND.
* configure.ac: Use GLIBCXX_CHECK_X86_RDRAND to test for rdrand
support in assembler.
* src/c++11/random.cc (__x86_rdrand): Depend on _GLIBCXX_X86_RDRAND.
(random_device::_M_init): Likewise.
(random_device::_M_getval): Likewise.
* configure: Regenerated.
* config.h.in: Regenerated.
gcc/
* config/i386/cpuid.h: Define signature_*_e[bcd]x macros for
matching results of level 0 calls to __cpuid to processor
manufacturers.
* config/i386/driver-i386.c (vendor_signatures): Removed.
(processor_signatures): Removed.
(host_detect_local_cpu): Replace uses of now-removed SIG_*
constants with the new signature_*_ebx constants.
libstdc++-v3/
* src/c++11/random.cc (random_device::_M_init): Use new macro
signature_INTEL_ebx to check for Intel processors.
For parallel LTO builds setting -fmem-report does not work very well
because all the LTRANS phases dump it in parallel and typically interleave
it to unreadability.
Since usually the memory bottleneck is WPA add a flag to only dump
the memory report for that.
gcc/:
2012-09-08 Andi Kleen <ak@linux.intel.com>
* gcc/common.opt (-fmem-report-wpa): Add
* gcc/doc/invoke.texi (-fmem-report-wpa): Document.
* gcc/lto/lto.c (do_whole_program_analysis): Run mem_report
when mem_report_wpa is set.
paolo [Fri, 7 Sep 2012 20:17:43 +0000 (20:17 +0000)]
2012-09-07 Paolo Carlini <paolo.carlini@oracle.com>
* pt.c (num_template_headers_for_class): Rework per the code
inline in cp_parser_check_declarator_template_parameters.
* parser.c (cp_parser_check_declarator_template_parameters):
Use num_template_headers_for_class.
* config/v850/v850.h (DBX_DEBUGGING_INFO): Define.
(ASM_GENERATE_INTERNAL_LABEL): Define if not already provided.
* config/v850/v850.c (compute_register_save_size): Always include
the link pointer.
(increment_stack): New function - emits insns to increment or
decrement the stack pointer.
(expand_prologue, expand_epilogue): Use it.
(expand_prologue): Set the function stack size, if requested.
(v850_debug_unwind_info): New function.
(TARGET_DEBUG_UNWIND_INFO): Define.
This fixes part of the issue described in PR gcov-profile/54487 where
there were warnings about mismatches due to slight differences in the
merged histograms in different object files. This can happen due to
the truncating integer division in the merge routine, which could result
in slightly different histograms when summaries are merged in different
orders.
2012-09-07 Teresa Johnson <tejohnson@google.com>
PR gcov-profile/54487
* libgcc/libgcov.c (gcov_exit): Avoid warning on histogram
differences.
PR tree-ssa/54295
* tree-ssa-math-opts.c (widening_mult_conversion_strippable_p):
Sign-extension of a zero-extended value can be simplified to
just zero-extension.
steven [Fri, 7 Sep 2012 10:23:06 +0000 (10:23 +0000)]
* bitmap.c (bitmap_last_set_bit): Rewrite to return the correct bit.
* graphite.c (print_global_statistics): Use EDGE_COUNT instead
of VEC_length.
(print_graphite_scop_statistics): Likewise.
* graphite-scop-detection.c (get_bb_type): Use single_succ_p.
(print_graphite_scop_statistics): Use EDGE_COUNT, not VEC_length.
(canonicalize_loop_closed_ssa): Use single_pred_p.
* alias.c (reg_seen): Make this an sbitmap.
(record_set, init_alias_analysis): Update.
The reason is that the declaration indexes are quite sparse, but every subfile
got a full continuous vector for them. Since there are so many of them the
many vectors add up.
This patch instead stores the resolutions initially in a compact (index, resolution)
format. This is only expanded into a sparse vector for fast lookup when
the subfile is actually read, but then immediately freed. This means only one
vector is allocated at a time.
This brings the overhead for this down to less than 3MB for the test case:
PR libstdc++/54172
* libsupc++/guard.cc (__cxa_guard_acquire): Exit the loop earlier if
we detect that another thread has had success. Don't compare_exchange
from a finished state back to a waiting state. Comment.
jason [Thu, 6 Sep 2012 16:24:10 +0000 (16:24 +0000)]
PR c++/54341
PR c++/54253
* semantics.c (sort_constexpr_mem_initializers): New.
(build_constexpr_constructor_member_initializers): Use it.
(cx_check_missing_mem_inits): Skip artificial fields.
* init.c (expand_aggr_init_1): Don't zero out a class
with no data.
PR tree-optimization/54498
* tree-ssa-alias.h (get_continuation_for_phi): Add flag to
abort when reaching an already visited region.
* tree-ssa-alias.c (maybe_skip_until): Likewise. And do it.
(get_continuation_for_phi_1): Likewise.
(walk_non_aliased_vuses): When we translated the reference,
abort when we re-visit a region.
* tree-ssa-pre.c (translate_vuse_through_block): Adjust.
* optabs.c (emit_conditional_add): Correct comment about the arguments.
Remove code which might swap op2 and op3 since they cannot be swapped.
* doc/md.texi (add@var{mode}cc): Fix document about how the arguments
are used.
PR libstdc++/54296
* include/bits/hashtable.h (_M_erase(size_type, __node_base*,
__node_type*)): New.
(erase(const_iterator)): Use latter.
(_M_erase(std::true_type, const key_type&)): New, likewise.
(_M_erase(std::false_type, const key_type&)): New. Find all nodes
matching the key before deallocating them so that the key doesn't
get invalidated.
(erase(const key_type&)): Use the new member functions.
* testsuite/23_containers/unordered_map/erase/54296.cc: New.
* testsuite/23_containers/unordered_multimap/erase/54296.cc: New.
* bb-reorder.c: Clarify a few points in the head comment and fix
long lines in other comments.
(find_traces): Fix long line.
(find_traces_1_round): Likewise.
(better_edge_p): Likewise.
(connect_traces): Likewise.
(duplicate_computed_gotos): Likewise.
(find_rarely_executed_basic_blocks_and_cr): Remove trailing spaces.
(fix_up_fall_thru_edges): Fix formatting.
PR tree-optimization/46590
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Do not
update SSA form here.
(canonicalize_induction_variables): Assert we do not need to
update SSA form.
(tree_unroll_loops_completely): Update SSA form here.
* tree-ssa-loop-manip.c (gimple_duplicate_loop_to_header_edge):
Do not verify loop-closed SSA form if SSA form is not up-to-date.
Enhances the gcov program summary by adding a histogram of arc counter
entries. This is used to compute working set information in the compiler
for use by optimizations that need information on hot vs cold counter
values or the rough working set size in terms of the number of counters.
Each working set data point is the minimum counter value and number of
counters required to reach a given percentage of the cumulative counter
sum across the profiled execution (sum_all in the program summary).
2012-09-04 Teresa Johnson <tejohnson@google.com>
* libgcc/libgcov.c (struct gcov_summary_buffer): New structure.
(gcov_histogram_insert): New function.
(gcov_compute_histogram): Ditto.
(gcov_exit): Invoke gcov_compute_histogram, and perform merging of
histograms during summary merging.
* gcc/gcov-io.c (gcov_write_summary): Write out non-zero histogram
entries to function summary along with an occupancy bit vector.
(gcov_read_summary): Read in the histogram entries.
(gcov_histo_index): New function.
(void gcov_histogram_merge): Ditto.
* gcc/gcov-io.h (gcov_type_unsigned): New type.
(struct gcov_bucket_type): Ditto.
(struct gcov_ctr_summary): Include histogram.
(GCOV_TAG_SUMMARY_LENGTH): Update to include histogram entries.
(GCOV_HISTOGRAM_SIZE): New macro.
(GCOV_HISTOGRAM_BITVECTOR_SIZE): Ditto.
* gcc/profile.c (NUM_GCOV_WORKING_SETS): Ditto.
(gcov_working_sets): New global variable.
(compute_working_sets): New function.
(find_working_set): Ditto.
(get_exec_counts): Invoke compute_working_sets.
* gcc/coverage.c (read_counts_file): Merge histograms, and
fix bug with accessing summary info for non-summable counters.
* gcc/basic-block.h (gcov_type_unsigned): New type.
(struct gcov_working_set_info): Ditto.
(find_working_set): Declare.
* gcc/gcov-dump.c (tag_summary): Dump out histogram.
Enhances the gcov program summary by adding a histogram of arc counter
entries. This is used to compute working set information in the compiler
for use by optimizations that need information on hot vs cold counter
values or the rough working set size in terms of the number of counters.
Each working set data point is the minimum counter value and number of
counters required to reach a given percentage of the cumulative counter
sum across the profiled execution (sum_all in the program summary).
2012-09-04 Teresa Johnson <tejohnson@google.com>
* libgcc/libgcov.c (struct gcov_summary_buffer): New structure.
(gcov_histogram_insert): New function.
(gcov_compute_histogram): Ditto.
(gcov_exit): Invoke gcov_compute_histogram, and perform merging of
histograms during summary merging.
* gcc/gcov-io.c (gcov_write_summary): Write out non-zero histogram
entries to function summary along with an occupancy bit vector.
(gcov_read_summary): Read in the histogram entries.
(gcov_histo_index): New function.
(void gcov_histogram_merge): Ditto.
* gcc/gcov-io.h (gcov_type_unsigned): New type.
(struct gcov_bucket_type): Ditto.
(struct gcov_ctr_summary): Include histogram.
(GCOV_TAG_SUMMARY_LENGTH): Update to include histogram entries.
(GCOV_HISTOGRAM_SIZE): New macro.
(GCOV_HISTOGRAM_BITVECTOR_SIZE): Ditto.
* gcc/profile.c (NUM_GCOV_WORKING_SETS): Ditto.
(gcov_working_sets): New global variable.
(compute_working_sets): New function.
(find_working_set): Ditto.
(get_exec_counts): Invoke compute_working_sets.
* gcc/coverage.c (read_counts_file): Merge histograms, and
fix bug with accessing summary info for non-summable counters.
* gcc/basic-block.h (gcov_type_unsigned): New type.
(struct gcov_working_set_info): Ditto.
(find_working_set): Declare.
* gcc/gcov-dump.c (tag_summary): Dump out histogram.
This patch fixes a bootstrap failure when using clang as the host
compiler. Default arguments for class template member functions
should be added in the declaration, not the definition.
From Jason:
> 8.3.6 says "Default arguments for a member function of a class template shall
> be specified on the initial declaration of the member function within the
> class template."
PR bootstrap/54484
* vec.h (vec_t::embedded_init): Move default argument value
to function declaration.
This patch works around a parsing problem with g++ 4.3. The parser is
failing to lookup calls to the template function reserve when called
from other member functions:
vec_t<T>::reserve<A> (...)
The parser thinks that the '<' in reserve<A> is a less-than operation.
This problem does not happen after 4.3.
This code is going to change significantly, so this won't be needed
soon.
Tested on x86_64 with g++ 4.3 and g++ 4.6.
PR bootstrap/54478
* vec.h (vec_t::alloc): Remove explicit type specification
in call to reserve.
(vec_t::copy): Likewise.
(vec_t::reserve): Likewise.
(vec_t::reserve_exact): Likewise.
(vec_t::safe_splice): Likewise.
(vec_t::safe_push): Likewise.
(vec_t::safe_grow): Likewise.
(vec_t::safe_grow_cleared): Likewise.
(vec_t::safe_insert): Likewise.
* tree-ssa-pre.c (add_to_exp_gen): Adjust.
(make_values_for_phi): Do not add to PHI_GEN for FRE.
(compute_avail): Stop processing after adding all defs to
AVAIL_OUT for FRE.
(init_pre): Do not allocate not needed bitmap sets for FRE.
Make all VEC_* functions, member functions of vec_t.
This patch is the first step towards making the API for VEC use
member functions.
There are no user code modifications in this patch. Everything
is still using the VEC_* macros, but this time they expand into
member function calls.
Because of the way VECs are used, this required some trickery.
The API allows VECs to be NULL. This means that services like
VEC_length(V) will return 0 when V is a NULL pointer. This is,
of course, not possible to do if we call V->length().
For functions that either need to allocate/re-allocate the
vector, or they need to handle NULL vectors, I implemented them
as static member functions or free functions.
Another wart that I did not address in this patch is the fact
that vectors of pointers and vectors of objects have slightly
different semantics when handling elements in the vector. In
vector of pointers, we pass them around by value, but in vectors
of objects, they are passed around via pointers. That's why we
need TYPE * and TYPE ** overloads for some functions (e.g.,
vec_t::iterate).
I will fix these two warts in a subsequent patch. The idea is to
make vec_t a single-word structure, which acts as a handler for
the structure containing the actual vector. Something like this:
This has the advantage that we can now declare the actual vector
instances as regular variables, instead of pointers. They will
use the same amount of memory when embedded in other structures,
and we will be able to allocate and reallocate the actual data
without having to mutate the vector instance.
All the functions that are now static members in vec_t, will
become instance members in the new vec_t. This will mean that
all the callers will need to be changed, of course.
Tested on x86_64 and ppc64 with all languages plus ada, go and obj-c++.
Rewrite VEC_* functions as member functions of vec_t.
* vec.h: Update documentation.
(ALONE_VEC_CHECK_INFO): Define.
(ALONE_VEC_CHECK_DECL): Define.
(ALONE_VEC_CHECK_PASS): Define.
(struct vec_prefix): Rename field NUM to NUM_.
Rename field ALLOC to ALLOC_.
Update all users.
(struct vec_t): Rename field PREFIX to PREFIX_.
Rename field VEC to VEC_.
Update all users.
(vec_t::length): Rename from VEC_length_1. Update all users.
(vec_t::empty): Rename from VEC_empty_1. Update all users.
(vec_t::address): Rename from VEC_address_1. Update all users.
(vec_address): New.
(vec_t::last): Rename from VEC_last_1. Update all users.
(vec_t::operator[]): Rename from VEC_index_1. Update all users.
(vec_t::iterate): Rename from VEC_iterate_1. Update all users.
(vec_t::embedded_size): Rename from VEC_embedded_size_1.
Update all users.
(vec_t::embedded_init): Rename from VEC_embedded_init_1.
Update all users.
(vec_t::alloc): Rename from VEC_alloc_1. Update all users.
(vec_t::free): Rename from VEC_free_1. Update all users.
(vec_t::copy): Rename from VEC_copy_1. Update all users.
(vec_t::space): Rename from VEC_space_1. Update all users.
(vec_t::reserve): Rename from VEC_reserve_1. Update all users.
(vec_t::reserve_exact): Rename from VEC_reserve_exact_1.
Update all users.
(vec_t::splice): Rename from VEC_splice_1. Update all users.
(vec_t::safe_splice): Rename from VEC_safe_splice_1. Update all users.
(vec_t::quick_push): Rename from VEC_quick_push_1. Update all users.
(vec_t::safe_push): Rename from VEC_safe_push_1. Update all users.
(vec_t::pop): Rename from VEC_pop_1. Update all users.
(vec_t::truncate): Rename from VEC_truncate_1. Update all users.
(vec_t::safe_grow): Rename from VEC_safe_grow_1. Update all users.
(vec_t::safe_grow_cleared): Rename from VEC_safe_grow_cleared_1.
Update all users.
(vec_t::replace): Rename from VEC_replace_1. Update all users.
(vec_t::quick_insert): Rename from VEC_quick_insert_1.
Update all users.
(vec_t::safe_insert): Rename from VEC_safe_insert_1. Update all users.
(vec_t::ordered_remove): Rename from VEC_ordered_remove_1.
Update all users.
(vec_t::unordered_remove): Rename from VEC_unordered_remove_1.
Update all users.
(vec_t::block_remove): Rename from VEC_block_remove_1. Update all users.
(vec_t::lower_bound): Rename from VEC_lower_bound_1. Update all users.
steven [Tue, 4 Sep 2012 13:03:02 +0000 (13:03 +0000)]
* gimple.h (gimple_build_switch): Remove.
(gimple_build_switch_vec): Promote to the new gimple_build_switch.
(gimple_switch_default_label): Assert the default case label is
really a default case label.
(gimple_switch_set_default_label): Likewise.
* gimple.c (gimple_build_switch_nlabels): Make sure a default label
is passed in, and simplify accordingly.
(gimple_build_switch): Removed.
(gimple_build_switch_vec): Rename to gimple_build_switch.
* gimplify.c (gimplify_switch_expr): Update gimple_build_switch use.
* gimple-pretty-print.c (dump_gimple_switch): Do not accept a NULL
case label.
* stmt.c (expand_case): Simplify using the fact that every GIMPLE
switch must have a default case.
* tree-cfg.c (group_case_labels_stmt): Likewise.
(verify_gimple_switch): Use gimple_switch_label in verifier to get
the label at index 0, and verify that it is a valid default case.
* except.c (sjlj_emit_dispatch_table): Rewrite construction of the
switch for dispatching.
* tree-eh.c (lower_try_finally_switch): Update gimple_build_switch use.
(lower_eh_dispatch): Likewise.
* tree-vrp.c (execute_vrp): Use gimple_switch_label to get the case
label at index 0 before turning it into a default case label.
* omp-low.c (expand_omp_sections): Update gimple_build_switch use.
* tree-switch-conversion.c (emit_case_bit_tests): Get the default case
label using gimple_switch_default_label.
(collect_switch_conv_info): Likewise.
(process_switch): Likewise.
* doc/gimple.texi: Update documentation of gimple_build_switch.
PR target/45070
* config/arm/arm.c (thumb1_extra_regs_pushed): Handle return value of size
less than 4 bytes by using macro ARM_NUM_INTS.
(thumb1_unexpanded_epilogue): Use macro ARM_NUM_INTS.
PR target/51244
* config/sh/sh.c (prepare_cbranch_operands): Pull out comparison
canonicalization code into...
* (sh_canonicalize_comparison): This new function.
* config/sh/sh-protos.h: Declare it.
* config/sh/sh.h: Use it in new macro CANONICALIZE_COMPARISON.
* config/sh/sh.md (cbranchsi4): Remove TARGET_CBRANCHDI4 check and
always invoke expand_cbranchsi4.
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