2014-11-13 Teresa Johnson <tejohnson@google.com>
gcc:
PR tree-optimization/63841
* tree.c (initializer_zerop): A clobber does not zero initialize.
gcc/testsuite:
PR tree-optimization/63841
* g++.dg/tree-ssa/pr63841.C: New test.
From-SVN: r217505
2014-11-13 Richard Biener <rguenther@suse.de>
* match.pd: Add tcc_comparison, inverted_tcc_comparison
and inverted_tcc_comparison_with_nans operator lists.
Use tcc_comparison in the truth_valued_p predicate definition.
Restrict logical_inverted_value with bit_xor to integral types.
Build a boolean true for simplifying x |^ !x because of
vector types. Implement patterns from forward_propagate_comparison
* tree-ssa-forwprop.c (forward_propagate_comparison): Remove.
(get_prop_dest_stmt): Likewise.
(pass_forwprop::execute): Do not call it.
* fold-const.c (fold_unary_loc): Remove the pattern here.
* gcc.dg/tree-ssa/forwprop-28.c: Adjust.
From-SVN: r217496
gcc/
* common.opt (foffload, foffload-abi): New options.
* config/i386/i386.c (ix86_offload_options): New static function.
(TARGET_OFFLOAD_OPTIONS): Define.
* coretypes.h (enum offload_abi): New enum.
* doc/tm.texi: Regenerate.
* doc/tm.texi.in (TARGET_OFFLOAD_OPTIONS): Document.
* gcc.c (offload_targets): New static variable.
(handle_foffload_option): New static function.
(driver_handle_option): Handle OPT_foffload_.
(driver::maybe_putenv_OFFLOAD_TARGETS): Set OFFLOAD_TARGET_NAMES
according to offload_targets.
* hooks.c (hook_charptr_void_null): New hook.
* hooks.h (hook_charptr_void_null): Declare.
* lto-opts.c: Include lto-section-names.h.
(lto_write_options): Append options from target offload_options hook and
store them to offload_lto section. Do not store target-specific,
driver and diagnostic options in offload_lto section.
* lto-wrapper.c (merge_and_complain): Handle OPT_foffload_ and
OPT_foffload_abi_.
(append_compiler_options, append_linker_options)
(append_offload_options): New static functions.
(compile_offload_image): Add new arguments with options.
Call append_compiler_options and append_offload_options.
(compile_images_for_offload_targets): Add new arguments with options.
(find_and_merge_options): New static function.
(run_gcc): Outline options handling into the new functions:
find_and_merge_options, append_compiler_options, append_linker_options.
* opts.c (common_handle_option): Don't handle OPT_foffload_.
Forbid OPT_foffload_abi_ for non-offload compiler.
* target.def (offload_options): New target hook.
Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
From-SVN: r217493
libgomp/
* libgomp.map (GOMP_4.0.1): New symbol version.
Add GOMP_offload_register.
* libgomp_target.h: New file.
* splay-tree.h: New file.
* target.c: Include config.h, libgomp_target.h, dlfcn.h, splay-tree.h.
(gomp_target_init): New forward declaration.
(gomp_is_initialized): New static variable.
(splay_tree_node, splay_tree, splay_tree_key): New typedefs.
(struct target_mem_desc, struct splay_tree_key_s, offload_image_descr):
New structures.
(offload_images, num_offload_images, devices, num_devices): New static
variables.
(splay_compare): New static function.
(struct gomp_device_descr): New structure.
(gomp_get_num_devices): Call gomp_target_init.
(resolve_device, gomp_map_vars_existing, gomp_map_vars, gomp_unmap_tgt)
(gomp_unmap_vars, gomp_update, gomp_init_device): New static functions.
(GOMP_offload_register): New function.
(GOMP_target): Arrange for host callback to be performed in a separate
initial thread and contention group, inheriting ICVs from
gomp_global_icv etc. Call gomp_map_vars and gomp_unmap_vars.
Add device initialization and lookup for target function in splay tree.
(GOMP_target_data): Add device initialization and call gomp_map_vars.
(GOMP_target_end_data): Call gomp_unmap_vars.
(GOMP_target_update): Add device initialization and call gomp_update.
(gomp_load_plugin_for_device, gomp_register_images_for_device)
(gomp_target_init): New static functions.
Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
From-SVN: r217492
gcc/
* gcc.c (spec_host_machine, accel_dir_suffix): New variables.
(process_command): Tweak path construction for the possibility
of being configured as an offload compiler.
(driver::maybe_putenv_OFFLOAD_TARGETS): New function.
(driver::main): Call maybe_putenv_OFFLOAD_TARGETS.
(driver::set_up_specs): Tweak path construction for the possibility of
being configured as an offload compiler.
* lto-wrapper.c (OFFLOAD_TARGET_NAMES_ENV): Define.
(offload_names, offloadbegin, offloadend): New static variables.
(free_array_of_ptrs, parse_env_var, access_check, compile_offload_image)
(compile_images_for_offload_targets, copy_file, find_offloadbeginend):
New static functions.
(run_gcc): Determine whether offload sections are present. If so, run
compile_images_for_offload_targets and return the names of new generated
objects to linker. If there are offload sections, but no LTO sections,
then return the copies of input objects without link-time recompilation.
lto-plugin/
* lto-plugin.c (OFFLOAD_SECTION, OFFLOAD_SECTION_LEN): Define.
(struct plugin_objfile): Add new field "offload".
(process_offload_section): New static function.
(claim_file_handler): Claim file if it contains offload sections.
Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Bernd Schmidt <bernds@codesourcery.com>
Co-Authored-By: Michael Zolotukhin <michael.v.zolotukhin@intel.com>
From-SVN: r217491
gcc/
* cgraph.c: Include context.h.
(cgraph_node::create): Set node->offloadable and g->have_offload if
decl have "omp declare target" attribute.
* cgraph.h (symtab_node): Add need_lto_streaming and offloadable flags.
* cgraphunit.c: Include lto-section-names.h.
(ipa_passes): Call ipa_write_summaries if there is something to write to
OFFLOAD_SECTION_NAME_PREFIX sections.
(symbol_table::compile): Set flag_generate_lto if there is something to
offload.
Replace flag_lto with flag_generate_lto before lto_streamer_hooks_init.
* context.c (gcc::context::context): Initialize have_offload with false.
* context.h (class context): Add have_offload flag.
* ipa-inline-analysis.c (inline_generate_summary): Do not exit under
flag_generate_lto.
(inline_free_summary): Always remove hooks.
* lto-cgraph.c (referenced_from_other_partition_p): Ignore references
from non-offloadable nodes while streaming a node into offload section.
(reachable_from_other_partition_p): Likewise.
(select_what_to_stream): New function.
(compute_ltrans_boundary): Do not call
lto_set_symtab_encoder_in_partition if the node should not be streamed.
* lto-section-names.h (OFFLOAD_SECTION_NAME_PREFIX): Define.
(section_name_prefix): Declare.
* lto-streamer.c (section_name_prefix): New variable.
(lto_get_section_name): Use section_name_prefix instead of
LTO_SECTION_NAME_PREFIX.
* lto-streamer.h (select_what_to_stream): Declare.
* omp-low.c: Include context.h.
(is_targetreg_ctx): New function.
(scan_sharing_clauses): Use offloadable flag, instead of an attribute.
(create_omp_child_function, check_omp_nesting_restrictions): Use new
is_targetreg_ctx function. Replace usage of "omp declare target"
attribute with a cgraph_node flag offloadable.
(expand_omp_target): Set mark_force_output for offloadable functions.
(lower_omp_critical): Set offloadable flag for omp critical symbol.
* passes.c (ipa_write_summaries): New argument offload_lto_mode. Call
select_what_to_stream. Do not call lto_set_symtab_encoder_in_partition
if the node should not be streamed out.
* tree-pass.h (ipa_write_summaries): New bool argument.
* varpool.c: Include context.h.
(varpool_node::get_create): Set node->offloadable and g->have_offload if
decl have "omp declare target" attribute.
gcc/lto/
* lto-object.c (lto_obj_add_section): Use section_name_prefix instead of
LTO_SECTION_NAME_PREFIX.
* lto-partition.c (lto_promote_cross_file_statics): Call
select_what_to_stream.
* lto.c (lto_section_with_id): Use section_name_prefix instead of
LTO_SECTION_NAME_PREFIX.
(read_cgraph_and_symbols): Read OFFLOAD_SECTION_NAME_PREFIX sections, if
being built as an offload compiler.
Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Bernd Schmidt <bernds@codesourcery.com>
Co-Authored-By: Michael Zolotukhin <michael.v.zolotukhin@intel.com>
From-SVN: r217486
* configure: Regenerate.
* configure.ac (--enable-as-accelerator-for)
(--enable-offload-targets): New configure options.
gcc/
* Makefile.in (real_target_noncanonical, accel_dir_suffix)
(enable_as_accelerator): New variables substituted by configure.
(libsubdir, libexecsubdir, unlibsubdir): Tweak for the possibility of
being configured as an offload compiler.
(DRIVER_DEFINES): Pass new defines DEFAULT_REAL_TARGET_MACHINE and
ACCEL_DIR_SUFFIX.
(install-cpp, install-common, install_driver, install-gcc-ar): Do not
install for the offload compiler.
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac (real_target_noncanonical, accel_dir_suffix)
(enable_as_accelerator): Compute new variables.
(ACCEL_COMPILER): Define if the compiler is built as the accel compiler.
(OFFLOAD_TARGETS): List of target names suitable for offloading.
(ENABLE_OFFLOADING): Define if list of offload targets is not empty.
gcc/cp/
* Make-lang.in (c++.install-common): Do not install for the offload
compiler.
gcc/doc/
* install.texi (Options specification): Document
--enable-as-accelerator-for and --enable-offload-targets.
gcc/fortran/
* Make-lang.in (fortran.install-common): Do not install for the offload
compiler.
libgcc/
* Makefile.in (crtoffloadbegin$(objext)): New rule.
(crtoffloadend$(objext)): Likewise.
* configure: Regenerate.
* configure.ac (accel_dir_suffix): Compute new variable.
(extra_parts): Add crtoffloadbegin.o and crtoffloadend.o
if enable_offload_targets is not empty.
* offloadstuff.c: New file.
libgomp/
* config.h.in: Regenerate.
* configure: Regenerate.
* configure.ac: Check for libdl, required for plugin support.
(PLUGIN_SUPPORT): Define if plugins are supported.
(enable_offload_targets): Support Intel MIC targets.
(OFFLOAD_TARGETS): List of target names suitable for offloading.
lto-plugin/
* Makefile.am (libexecsubdir): Tweak for the possibility of being
configured for offload compiler.
(accel_dir_suffix, real_target_noncanonical): New variables substituted
by configure.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac (accel_dir_suffix, real_target_noncanonical): Compute new
variables.
Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
From-SVN: r217485
2014-11-13 Janne Blomqvist <jb@gcc.gnu.org>
PR libfortran/60324
* configure: Regenerated.
* configure.ac (AM_CFLAGS): Add Werror=vla.
* libgfortran.h (gfc_alloca): Remove macro.
(fc_strdup_notrim): New prototype.
* intrinsics/access.c (access_func): Use fc_strdup rather than
stack allocation.
* intrinsics/chdir.c (chdir_i4_sub): Likewise.
(chdir_i8_sub): Likewise.
* intrinsics/chmod.c (chmod_internal): New function, move logic
here.
(chmod_func): Call chmod_internal.
* intrinsics/env.c (getenv): Use fc_strdup rather than stack
allocation.
(get_environment_variable_i4): Likewise.
* intrinsics/execute_command_line.c (execute_command_line):
Likewise.
* intrinsics/hostnm.c (hostnm_0): New function, use static buffer
rather than VLA.
(hostnm_i4_sub): Call hostnm_0.
(hostnm_i8_sub): Likewise.
(hostnm): Likewise.
* intrinsics/link.c (link_internal): New function, use fc_strdup
rather than stack allocation.
(link_i4_sub): Call link_internal.
(link_i8_sub): Likewise.
(link_i4): Likewise.
(link_i8): Likewise.
* intrinsics/perror.c (perror_sub): Use fc_strdup rather than
stack allocation.
* intrinsics/random.c (random_seed_i4): Use static buffer rather
than VLA, use _Static_assert to make sure it's big enough.
* intrinsics/rename.c (rename_internal): New function, use
fc_strdup rather than stack allocation.
(rename_i4_sub): Call rename_internal.
(rename_i8_sub): Likewise.
(rename_i4): Likewise.
(rename_i8): Likewise.
* intrinsics/stat.c (stat_i4_sub_0): Use fc_strdup rather than
stack allocation.
(stat_i8_sub_0): Likewise.
* intrinsics/symlink.c (symlnk_internal): New function, use
fc_strdup rather than stack allocation.
(symlnk_i4_sub): Call symlnk_internal.
(symlnk_i8_sub): Likewise.
(symlnk_i4): Likewise.
(symlnk_i8): Likewise.
* intrinsics/system.c (system_sub): Use fc_strdup rather than
stack allocation.
* intrinsics/unlink.c (unlink_i4_sub): Likewise.
* io/file_pos.c (READ_CHUNK): Make it a macro rather than variable.
* io/list_read.c (nml_get_obj_data): Use fixed stack buffer, fall
back to xmalloc/free for large sizes.
* io/read.c (read_f): Likewise.
* io/transfer.c (MAX_READ): Make it a macro rather than variable.
(WRITE_CHUNK): Likewise.
* io/write_float.def (write_float): Use fixed stack buffer, fall
back to xmalloc/free for large sizes.
* runtime/string.c (fc_strdup_notrim): New function.
From-SVN: r217480
2014-11-13 Tom de Vries <tom@codesourcery.com>
* omp-low.c (pass_data_expand_omp): Set properties_provided to
PROP_gimple_eomp.
(pass_expand_omp::gate): Remove function. Move gate expression to ...
(pass_expand_omp::execute): ... here, as new variable gate. Add early
exit if gate is false.
(pass_data pass_data_expand_omp_ssa): New pass_data.
(class pass_expand_omp_ssa): New pass.
(make_pass_expand_omp_ssa): New function.
* passes.def (pass_parallelize_loops): Use PUSH_INSERT_PASSES_WITHIN
instead of NEXT_PASS.
(pass_expand_omp_ssa): Add after pass_parallelize_loops.
* tree-parloops.c (gen_parallel_loop): Remove call to omp_expand_local.
(pass_parallelize_loops::execute): Don't do cleanups TODO_cleanup_cfg
and TODO_rebuild_alias yet. Add TODO_update_ssa. Set
cfun->omp_expand_needed.
* tree-pass.h: Add define PROP_gimple_eomp.
(make_pass_expand_omp_ssa): Declare.
From-SVN: r217474
2014-11-12 Vladimir Makarov <vmakarov@redhat.com>
* common.opt (flra-remat): New.
* opts.c (default_options_table): Add entry for flra_remat.
* timevar_def (TV_LRA_REMAT): New.
* doc/invoke.texi (-flra-remat): Add description of the new
option.
* doc/passes.texi (-flra-remat): Remove lra-equivs.c and
lra-saves.c. Add lra-remat.c.
* Makefile.in (OBJS): Add lra-remat.o.
* lra-remat.c: New file.
* lra.c: Add info about the rematerialization pass in the top
comment.
(collect_non_operand_hard_regs, add_regs_to_insn_regno_info):
Process unallocatable regs too.
(lra_constraint_new_insn_uid_start): Remove.
(lra): Add code for calling rematerialization sub-pass.
* lra-int.h (lra_constraint_new_insn_uid_start): Remove.
(lra_constrain_insn, lra_remat): New prototypes.
(lra_eliminate_regs_1): Add parameter.
* lra-lives.c (make_hard_regno_born, make_hard_regno_dead):
Process unallocatable hard regs too.
(process_bb_lives): Ditto.
* lra-spills.c (remove_pseudos): Add argument to
lra_eliminate_regs_1 call.
* lra-eliminations.c (lra_eliminate_regs_1): Add parameter. Use it
for sp offset calculation.
(lra_eliminate_regs): Add argument for lra_eliminate_regs_1 call.
(eliminate_regs_in_insn): Add parameter. Use it for sp offset
calculation.
(process_insn_for_elimination): Add argument for
eliminate_regs_in_insn call.
* lra-constraints.c (get_equiv_with_elimination): Add argument
for lra_eliminate_regs_1 call.
(process_addr_reg): Add parameter. Use it.
(process_address_1): Ditto. Add argument for process_addr_reg
call.
(process_address): Ditto.
(curr_insn_transform): Add parameter. Use it. Add argument for
process_address calls.
(lra_constrain_insn): New function.
(lra_constraints): Add argument for curr_insn_transform call.
From-SVN: r217458
When using dot imports, it is possible to
have an imported symbol name that matches
the name of a struct field in a composite
literal. Do not consider the imported
package to be used in this situation.
Fixes issue 6427.
From-SVN: r217453
PR ipa/63838
* ipa-pure-const.c (propagate_nothrow): Walk w->indirect_calls
chain instead of node->indirect_calls. Put !can_throw into
conditions of all the loops.
* g++.dg/ipa/pr63838.C: New test.
From-SVN: r217449
