* tree-ssa-dce.c (bb_contains_live_stmts): New bitmap.
(mark_stmt_necessary): Set it.
(mark_operand_necessary): Set it.
(mark_control_dependent_edges_necessary): Set it.
(mark_virtual_phi_result_for_renaming): New function.
(get_live_post_dom): New function.
(forward_edge_to_pdom): New function.
(remove_dead_stmt): Fix handling of control dependences.
(tree_dce_init): Init new bitmap.
(tree_dce_done): Free it.
From-SVN: r149199
2009-07-02 Mark Mitchell <mark@codesourcery.com>
* typeck.c (cp_build_binary_op): Move warnings about use of NULL
in arithmetic earlier and allow comparisions of NULL with
pointers-to-members.
2009-07-02 Mark Mitchell <mark@codesourcery.com>
* g++.dg/warn/null4.C: Extend.
From-SVN: r149190
* pt.c (struct spec_entry): New type.
(decl_specializations, type_specializations): New hash tables.
(register_specialization, retrieve_specialization): Use them.
(reregister_specialization, lookup_template_class): Use them.
(eq_specializations, hash_tmpl_and_args, hash_specialization): New.
(iterative_hash_template_arg): New.
(init_template_processing): New
(process_partial_specialization): Don't look to see if we already
have this partial specialization.
(maybe_process_partial_specialization): Handle reassigning
full specializations when we get an explicit specialization
of the partial instantiation.
(tsubst_friend_function): Adjust specialization reassignment code.
(instantiate_template): Only do one lookup.
(instantiate_decl): Don't do any lookup.
* cp-tree.h: Declare init_template_processing.
* decl.c (duplicate_decls): Pass args to reregister_specialization.
From-SVN: r149188
fortran/
PR fortran/32131
* trans-array.c (gfc_conv_descriptor_stride_get): Return
constant one for strides in the first dimension of ALLOCATABLE
arrays.
testsuite/
PR fortran/32131
* gfortran.dg/pr32921.f: Adjust.
From-SVN: r149178
2009-07-02 Richard Guenther <rguenther@suse.de>
* tree-ssa-live.c (remove_unused_locals): Do not remove
heap variables.
* tree-ssa-structalias.c (handle_lhs_call): Delay setting
of DECL_EXTERNAL for HEAP variables.
(compute_points_to_sets): Set DECL_EXTERNAL for escaped
HEAP variables. Do not adjust RESTRICT vars.
(find_what_var_points_to): Nobody cares if something
points to READONLY.
From-SVN: r149170
* pt.c (register_specialization): Use duplicate_decls to merge
the argument with a previous specialization.
(check_explicit_specialization): Call register_specialization to
merge the TEMPLATE_DECL with a previous version.
(determine_specialization): Return the args even if fn is a template.
From-SVN: r149165
* config/mep/mep.c (mep_handle_option): Leave IVC2 control
registers as fixed.
(mep_interrupt_saved_reg): Save appropriate IVC2 control
registers.
* config/mep/mep-ivc2.cpu: Add VOLATILE to insns that make
unspecified accesses to control registers.
* config/mep/intrinsics.md: Regenerate.
* config/mep/intrinsics.h: Regenerate.
* config/mep/mep-intrin.h: Regenerate.
From-SVN: r149164
PR bootstrap/40347
* function.c (reposition_prologue_and_epilogue_notes): If epilogue
contained no insns, reposition note before last insn.
From-SVN: r149158
* combine.c (force_to_mode): Handle TRUNCATE. Factor out
truncation from operands in binary operations.
testsuite/
* gcc.target/mips/truncate-4.c: New testcase.
From-SVN: r149154
Revert:
2009-01-11 Adam Nemet <anemet@caviumnetworks.com>
* expmed.c (store_bit_field_1): Properly truncate the paradoxical
subreg of op0 to the original op0.
* expmed.c (store_bit_field_1): Use a temporary as the destination
instead of a paradoxical subreg when we need to truncate the result.
From-SVN: r149153
libffi/
* testsuite/lib/libffi-dg.exp (libffi-init): Set ld_library_path
to "" before adding paths. (This reinstates an assignment that
was removed by my 2009-06-30 commit, but changes the initial
value from "." to "".)
From-SVN: r149149
2009-07-01 H.J. Lu <hongjiu.lu@intel.com>
PR testsuite/40601
* testsuite/lib/libffi-dg.exp (libffi-init): Properly set
gccdir. Adjust ld_library_path for gcc only if gccdir isn't
empty.
From-SVN: r149145
* pa.c (forward_branch_p): Return bool type. Use instruction addresses
when available. Assert that INSN has a jump label.
(pa_adjust_insn_length): Don't call forward_branch_p if INSN doesn't
have a jump label.
From-SVN: r149141
2009-07-01 Richard Guenther <rguenther@suse.de>
PR tree-optimization/19831
* tree-ssa-dce.c (propagate_necessity): Calls to functions
that only act as barriers do not make any previous stores
necessary.
* tree-ssa-structalias.c (handle_lhs_call): Delay making
HEAP variables global, do not add a constraint from nonlocal.
(find_func_aliases): Handle escapes through return statements.
(compute_points_to_sets): Make escaped HEAP variables global.
* gcc.dg/tree-ssa/20041122-1.c: Enable TBAA, scan FRE dump,
make allocated memory escape. Un-XFAIL.
* gcc.dg/vect/pr21591.c: Make allocated memory escape.
* gcc.dg/vect/pr31699.c: Likewise.
* gcc.dg/tree-ssa/ssa-dce-7.c: New testcase.
libmudflap/
* testsuite/libmudflap.c/fail11-frag.c: Make allocated memory
escape.
* testsuite/libmudflap.c/fail12-frag.c: Likewise.
* testsuite/libmudflap.c/fail16-frag.c: Likewise.
* testsuite/libmudflap.c/fail31-frag.c: Likewise.
From-SVN: r149140
2009-07-01 Paolo Bonzini <bonzini@gnu.org>
PR bootstrap/40597
* expmed.c (emit_store_flag): Perform a conversion if necessary,
after reducing a DImode cstore to SImode.
From-SVN: r149137
* config/vax/vax.h (TARGET_BSD_DIVMOD): New macro. Set to 1.
* config/vax/linux.h (TARGET_BSD_DIVMOD): New macro. Redefine the
to 0.
* config/vax/vax.c (vax_init_libfuncs): Only redefine udiv_optab
and umod_optab if TARGET_BSD_DIVMOD.
* config/vax/lib1funcs.asm: New file.
* config/vax/t-linux: New file.
* config.gcc (vax-*-linux*): Set tmake_file to vax/t-linux.
From-SVN: r149128
PR c++/40566
* convert.c (convert_to_integer) <case COND_EXPR>: Don't convert
to type arguments that have void type.
* g++.dg/parse/cond5.C: New test.
From-SVN: r149121
* gcc.dg/tree-ssa/gen-vect-25.c (n): New variable.
(main): Pass n to main_1 instead.
* gcc.dg/tree-ssa/gen-vect-28.c (off): New variable.
(main_1): New function, split off from...
(main): ...here. Pass `off' to main_1 instead.
From-SVN: r149119
* gcc-interface/utils2.c (build_binary_op) <MODIFY_EXPR>: Do not use
the type of the left operand if it pads a self-referential type when
the right operand is a constructor.
* gcc-interface/lang-specs.h: Fix copyright date.
From-SVN: r149115
gcc/testsuite/
* lib/gcc-defs.exp (gcc-set-multilib-library-path): Delete.
* lib/target-libpath.exp (ld_library_path_vars): New variable.
(init_ld_library_path_env_vars): New function, replacing the
orig_*_saved assignments. Call it after defining it.
(set_ld_library_path_env_vars): Rewrite to use ld_library_path_vars.
(restore_ld_library_path_env_vars): Likewise.
(add_path, find_libgcc_s): New functions.
* lib/objc.exp (objc_init): Use find_libgcc_s instead of
gcc-set-multilib-library-path.
(objc_target_compile): Don't add "." to ld_library_path.
Use add_path.
* lib/gfortran.exp (gfortran_link_flags): Don't add "." to
ld_library_path. Use add_path. Use find_libgcc_s instead of
gcc-set-multilib-library-path.
* lib/g++.exp (g++_link_flags): Likewise.
* lib/obj-c++.exp (obj-c++_link_flags): Likewise.
* lib/c-torture.exp: Do not manipulate ld_library_path at the
top level; do it...
(c-torture-execute): ...here instead. Use $ld_library_path_multilib
to tell when this needs to happen. Use find_libgcc_s instead of
gcc-set-multilib-library-path.
* lib/gcc-dg.exp: Likewise.
* lib/gnat.exp (gnat_target_compile): Don't add "." to ld_library_path.
* g++.dg/compat/compat.exp (alt_ld_library_path): Don't add "."
unless it is in $ALT_LD_LIBRARY_PATH.
* g++.dg/compat/struct-layout-1.exp (alt_ld_library_path): Likewise.
libffi/
* testsuite/lib/libffi-dg.exp (libffi-init): Don't add "."
to ld_library_path. Use add_path. Add just find_libgcc_s
to ld_library_path, not every libgcc multilib directory.
libgomp/
* testsuite/lib/libgomp.exp (libgomp_init): Don't add "." to
ld_library_path. Use add_path. Add just find_libgcc_s to
ld_library_path, not every libgcc multilib directory.
* testsuite/libgomp.c/c.exp (ld_library_path): Don't call
gcc-set-multilib-library-path; rely on $always_ld_library_path instead.
* testsuite/libgomp.c++/c++.exp (ld_library_path): Likewise.
Use add_path.
* testsuite/libgomp.fortran/fortran.exp (ld_library_path): Likewise.
libjava/
* testsuite/lib/libjava.exp (libjava_init): Just add
find_libgcc_s to libjava_libgcc_s_path, rather than every
libgcc multilib directory.
(libjava_arguments): Explain why we add "." to ld_library_path.
(gcj_invoke, exec_gij, libjava_invoke): Use add_path.
libmudflap/
* testsuite/lib/libmudflap.exp (libmudflap-init): Don't add "."
to ld_library_path. Use add_path. Add just find_libgcc_s to
ld_library_path, not every libgcc multilib directory.
libstdc++-v3/
* testsuite/lib/libstdc++.exp (libstdc++_init): Don't add "."
to ld_library_path. Use add_path. Add just find_libgcc_s to
ld_library_path, not every libgcc multilib directory.
From-SVN: r149113
* cgraphunit.c (cgraph_finalize_compilation_unit): Call
finalize_size_functions before further processing.
* stor-layout.c: Include cgraph.h, tree-inline.h and tree-dump.h.
(variable_size): Call self_referential_size on size expressions
that contain a PLACEHOLDER_EXPR.
(size_functions): New static variable.
(copy_self_referential_tree_r): New static function.
(self_referential_size): Likewise.
(finalize_size_functions): New global function.
* tree.c: Include tree-inline.h.
(push_without_duplicates): New static function.
(find_placeholder_in_expr): New global function.
(substitute_in_expr) <tcc_declaration>: Return the replacement object
on equality.
<tcc_expression>: Likewise.
<tcc_vl_exp>: If the replacement object is a constant, try to inline
the call in the expression.
* tree.h (finalize_size_functions): Declare.
(find_placeholder_in_expr): Likewise.
(FIND_PLACEHOLDER_IN_EXPR): New macro.
(substitute_placeholder_in_expr): Update comment.
* tree-inline.c (remap_decl): Do not unshare trees if do_not_unshare
is true.
(copy_tree_body_r): Likewise.
(copy_tree_body): New static function.
(maybe_inline_call_in_expr): New global function.
* tree-inline.h (struct copy_body_data): Add do_not_unshare field.
(maybe_inline_call_in_expr): Declare.
* Makefile.in (tree.o): Depend on TREE_INLINE_H.
(stor-layout.o): Depend on CGRAPH_H, TREE_INLINE_H, TREE_DUMP_H and
GIMPLE_H.
ada/
* gcc-interface/decl.c: Include tree-inline.h.
(annotate_value) <CALL_EXPR>: Try to inline the call in the expression.
* gcc-interface/utils.c (max_size) <CALL_EXPR>: Likewise.
* gcc-interface/utils2.c: Include tree-inline.
(known_alignment) <CALL_EXPR>: Likewise.
From-SVN: r149112
