2012-09-06 Thiago Macieira <thiago.macieira@intel.com>
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.
From-SVN: r191042
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.
From-SVN: r191033
2012-09-06 Richard Guenther <rguenther@suse.de>
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.
From-SVN: r191030
2012-09-06 Richard Guenther <rguenther@suse.de>
* passes.c (execute_function_todo): Call compute_may_aliases
only if flag_tree_pta is set.
From-SVN: r191015
PR rtl-optimization/54455
* sel-sched-ir.c (maybe_tidy_empty_bb): Give up if previous fallthru
bb ends up with asm goto referencing bb's label.
* gcc.dg/54455.c: New test.
From-SVN: r191013
2012-09-05 Andrew Pinski <apinski@cavium.com>
* 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.
From-SVN: r190994
2012-09-05 François Dumont <fdumont@gcc.gnu.org>
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.
From-SVN: r190991
PR middle-end/54486
* builtins.c (fold_builtin_strspn, fold_builtin_strcspn): Use
build_int_cst with size_type_node instead of size_int.
* c-c++-common/pr54486.c: New test.
From-SVN: r190986
* 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.
From-SVN: r190979
2012-09-05 Richard Guenther <rguenther@suse.de>
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.
From-SVN: r190978
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.
From-SVN: r190953
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.
From-SVN: r190952
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.
From-SVN: r190951
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.
From-SVN: r190943
Lawrence Crowl
Cary Coutant
Uros Bizjak
Thiago Macieira
Diego Novillo
Kyrylo Tkachov
Jason Merrill
Richard Guenther
David Edelsohn
Andrew Pinski
Jakub Jelinek
Tobias Burnus
Ian Lance Taylor
Chen Liqin
GCC Administrator
Jan Hubicka
Uros Bizjak
François Dumont
Oleg Endo
Tobias Burnus
Jakub Jelinek
Ulrich Drepper
Eric Botcazou
Dominique d'Humieres
Paolo Carlini
Georg-Johann Lay
Bin Cheng
Teresa Johnson