platform/upstream/gcc.git
12 years ago* lib/target-supports.exp
Uros Bizjak [Fri, 16 Nov 2012 14:53:53 +0000 (15:53 +0100)]
* lib/target-supports.exp
(check_effective_target_has_w_floating_suffix): Use options for c++ only.
(check_effective_target_has_q_floating_suffix): Ditto.

From-SVN: r193559

12 years agore PR c++/55337 (ICE tree check: expected sizeof_expr, have alignof_expr in cp_tree_e...
Jakub Jelinek [Fri, 16 Nov 2012 14:33:44 +0000 (15:33 +0100)]
re PR c++/55337 (ICE tree check: expected sizeof_expr, have alignof_expr in cp_tree_equal, at cp/tree.c:2608)

PR c++/55337
* tree.c (cp_tree_equal) <case ALIGNOF_EXPR>: Use SIZEOF_EXPR_TYPE_P
only on SIZEOF_EXPR.

* g++.dg/template/alignof2.C: New test.

From-SVN: r193558

12 years agoDefine/use hardware pointer type for stack unwind
H.J. Lu [Fri, 16 Nov 2012 12:02:29 +0000 (12:02 +0000)]
Define/use hardware pointer type for stack unwind

PR other/55333
* include/sanitizer/common_interface_defs.h (uhwptr): New type
for hardware pointer.
* sanitizer_common/sanitizer_stacktrace.cc (StackTrace::FastUnwindStack):
Replace uptr with uhwptr for stack unwind.

From-SVN: r193557

12 years ago* ChangeLog: Add ChangeLog entry for my last commit.
Uros Bizjak [Fri, 16 Nov 2012 11:49:08 +0000 (12:49 +0100)]
* ChangeLog: Add ChangeLog entry for my last commit.

From-SVN: r193556

12 years agomv1.C (dg-options): Add -march=x86-64.
Uros Bizjak [Fri, 16 Nov 2012 11:45:15 +0000 (12:45 +0100)]
mv1.C (dg-options): Add -march=x86-64.

* g++.dg/mv1.C (dg-options): Add -march=x86-64.
* g++.dg/mv6.C (dg-options): Ditto.

From-SVN: r193555

12 years agore PR tree-optimization/54073 (SciMark Monte Carlo test performance has seriously...
Jakub Jelinek [Fri, 16 Nov 2012 11:40:39 +0000 (12:40 +0100)]
re PR tree-optimization/54073 (SciMark Monte Carlo test performance has seriously decreased in recent GCC releases)

PR target/54073
* config/i386/i386.md (mov<mode>cc): Use comparison_operator
instead of ordered_comparison_operator resp.
ix86_fp_comparison_operator predicates.
* config/i386/i386.c (ix86_expand_fp_movcc): Reject TImode
or for -m32 DImode comparisons.

From-SVN: r193554

12 years agore PR tree-optimization/54717 (Runtime regression: polyhedron test "rnflow" degraded)
Jan Hubicka [Fri, 16 Nov 2012 10:37:25 +0000 (11:37 +0100)]
re PR tree-optimization/54717 (Runtime regression: polyhedron test "rnflow" degraded)

PR tree-optimization/54717
* tree-ssa-pre.c (do_partial_partial_insertion): Consider also edges
with ANTIC_IN.

From-SVN: r193553

12 years agoEnable building of libsanitizer on sparc linux
Dodji Seketeli [Fri, 16 Nov 2012 08:11:03 +0000 (08:11 +0000)]
Enable building of libsanitizer on sparc linux

libsanitizer/ChangeLog:

* configure.tgt: Enable sparc linux.

From-SVN: r193552

12 years ago* lib/target_suports.exp
Uros Bizjak [Fri, 16 Nov 2012 07:51:43 +0000 (08:51 +0100)]
* lib/target_suports.exp
(check_effective_target_has_w_floating_suffix): New procedure.
(check_effective_target_has_q_floating_suffix): Ditto.
* g++.dg/cpp0x/gnu_fext-numeric-literals.C: Add dg-error directive
for unsupported non-standard suffix on floating constant.
* g++.dg/cpp0x/std_fext-numeric-literals.C: Ditto.

From-SVN: r193551

12 years agoi386-protos.h (ix86_emit_mode_set): Add third argument.
Uros Bizjak [Fri, 16 Nov 2012 07:42:19 +0000 (08:42 +0100)]
i386-protos.h (ix86_emit_mode_set): Add third argument.

* config/i386/i386-protos.h (ix86_emit_mode_set): Add third argument.
* config/i386/i386.h (EMIT_MODE_SET): Update.
* config/i386/i386.c (ix86_avx_emit_vzeroupper): New function.
(ix86_emit_mode_set) <AVX_U128>: Call ix86_avx_emit_vzeroupper.

From-SVN: r193550

12 years agoAMD bdver3 enablement
Ganesh Gopalasubramanian [Fri, 16 Nov 2012 07:18:37 +0000 (07:18 +0000)]
AMD bdver3 enablement

From-SVN: r193549

12 years agoAMD bdver3 enablement
Ganesh Gopalasubramanian [Fri, 16 Nov 2012 07:17:30 +0000 (07:17 +0000)]
AMD bdver3 enablement

From-SVN: r193548

12 years agoFix gcc.c-torture/compile/pr53410-2.c on sparc.
David S. Miller [Fri, 16 Nov 2012 05:31:46 +0000 (05:31 +0000)]
Fix gcc.c-torture/compile/pr53410-2.c on sparc.

* expmed.c (expand_shift_1): Don't strip non-integral SUBREGs.

From-SVN: r193547

12 years agoDaily bump.
GCC Administrator [Fri, 16 Nov 2012 00:18:13 +0000 (00:18 +0000)]
Daily bump.

From-SVN: r193546

12 years agoAdd support for sparc fused compare-and-branch.
David S. Miller [Thu, 15 Nov 2012 21:24:22 +0000 (21:24 +0000)]
Add support for sparc fused compare-and-branch.

gcc/

2012-11-15  David S. Miller  <davem@davemloft.net>

* configure.ac: Add check for assembler SPARC4 instruction
support.
* configure: Rebuild.
* config.in: Add HAVE_AS_SPARC4 section.
* config/sparc/sparc.opt (mcbcond): New option.
* doc/invoke.texi: Document it.
* config/sparc/constraints.md: New constraint 'A' for 5-bit signed
immediates.
* doc/md.texi: Document it.
* config/sparc/sparc.c (dump_target_flag_bits): Handle MASK_CBCOND.
(sparc_option_override): Likewise.
(emit_cbcond_insn): New function.
(emit_conditional_branch_insn): Call it.
(emit_cbcond_nop): New function.
(output_ubranch): Use cbcond, remove label arg.
(output_cbcond): New function.
* config/sparc/sparc-protos.h (output_ubranch): Update.
(output_cbcond): Declare it.
(emit_cbcond_nop): Likewise.
* config/sparc/sparc.md (type attribute): New types 'cbcond'
and uncond_cbcond.
(emit_cbcond_nop): New attribute.
(length attribute): Handle cbcond and uncond_cbcond.
(in_call_delay attribute): Reject cbcond and uncond_cbcond.
(in_branch_delay attribute): Likewise.
(in_uncond_branch_delay attribute): Likewise.
(in_annul_branch_delay attribute): Likewise.
(*cbcond_sp32, *cbcond_sp64): New insn patterns.
(jump): Rewrite into an expander.
(*jump_ubranch, *jump_cbcond): New patterns.
* config/sparc/niagara4.md: Match 'cbcond' in 'n4_cti'.
* config/sparc/sparc.h (AS_NIAGARA4_FLAG): New macro, use it
when target default is niagara4.
(SPARC_SIMM5_P): Define.
* config/sparc/sol2.h (AS_SPARC64_FLAG): Adjust.
(AS_SPARC32_FLAG): Define.
(ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Use
AS_NIAGARA4_FLAG as needed.

From-SVN: r193543

12 years ago* MAINTAINERS (Write After Approval): Add myself.
Roland McGrath [Thu, 15 Nov 2012 19:12:53 +0000 (19:12 +0000)]
* MAINTAINERS (Write After Approval): Add myself.

From-SVN: r193542

12 years agosoft-fp updated from GLIBC upstream.
Marcus Shawcroft [Thu, 15 Nov 2012 18:39:47 +0000 (18:39 +0000)]
soft-fp updated from GLIBC upstream.

From-SVN: r193540

12 years agoexpr.c (expand_cond_expr_using_cmove): Use promoted mode for temp.
Steve Ellcey [Thu, 15 Nov 2012 17:27:44 +0000 (17:27 +0000)]
expr.c (expand_cond_expr_using_cmove): Use promoted mode for temp.

2012-11-15  Steve Ellcey  <sellcey@mips.com>

* expr.c (expand_cond_expr_using_cmove): Use promoted mode for temp.

From-SVN: r193539

12 years agofmaq.c (fmaq): Merge from GLIBC.
Tobias Burnus [Thu, 15 Nov 2012 17:22:21 +0000 (18:22 +0100)]
fmaq.c (fmaq): Merge from GLIBC.

2012-11-15  Tobias Burnus  <burnus@net-b.de>
            Joseph Myers  <joseph@codesourcery.com>

        * math/fmaq.c (fmaq): Merge from GLIBC. Fix fma
        underflows with small x * y; Fix overflow results
        outside round-to-nearest mode; make use of Dekker
        and Knuth algorithms use round-to-nearest.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
From-SVN: r193538

12 years agore PR tree-optimization/54619 (GCC aborts during compilation with '-O2 -mips16')
Tom de Vries [Thu, 15 Nov 2012 16:49:45 +0000 (16:49 +0000)]
re PR tree-optimization/54619 (GCC aborts during compilation with '-O2 -mips16')

2012-11-15  Tom de Vries  <tom@codesourcery.com>

PR tree-optimization/54619
* tree-ssa-loop-ivopts.c (get_use_type): New function.
(get_computation_at): Use get_use_type.
(get_computation_cost_at): Declare and set mem_mode.  Use mem_mode.

From-SVN: r193537

12 years agoMAINTAINERS: (libsanitizer...
Dmitry Vyukov [Thu, 15 Nov 2012 16:28:39 +0000 (08:28 -0800)]
MAINTAINERS: (libsanitizer...

* MAINTAINERS: (libsanitizer, asan.c): Add myself,
Kostya Serebryany (kcc@google.com) and
Jakub Jelinek (jakub@redhat.com).
Rename area for Dodji Seketeli (dodji@redhat.com).

From-SVN: r193536

12 years agore PR c++/54903 (Auto + static in-class constant initialization not working)
Jason Merrill [Thu, 15 Nov 2012 16:11:56 +0000 (11:11 -0500)]
re PR c++/54903 (Auto + static in-class constant initialization not working)

PR c++/54903
* decl2.c (mark_used): Don't complain about auto in templates.

From-SVN: r193535

12 years agoProperly set MULTISUBDIR and gcc_version
H.J. Lu [Thu, 15 Nov 2012 16:00:47 +0000 (16:00 +0000)]
Properly set MULTISUBDIR and gcc_version

* configure.ac: Properly set MULTISUBDIR.
* asan/Makefile.am (gcc_version): New.
* interception/Makefile.am (gcc_version): Likewise.
* sanitizer_common/Makefile.am (gcc_version): Likewise.
* configure: Regenerated.
* asan/Makefile.in: Likewise.
* interception/Makefile.in: Likewise.
* sanitizer_common/Makefile.in: Likewise.

From-SVN: r193534

12 years agoasan.c (report_error_func): Set DECL_IGNORED_P, don't touch DECL_ASSEMBLER_NAME.
Jakub Jelinek [Thu, 15 Nov 2012 13:12:36 +0000 (14:12 +0100)]
asan.c (report_error_func): Set DECL_IGNORED_P, don't touch DECL_ASSEMBLER_NAME.

* asan.c (report_error_func): Set DECL_IGNORED_P, don't touch
DECL_ASSEMBLER_NAME.
(asan_init_func): Likewise.
(asan_finish_file): Use void * instead of __asan_global * as
type of __asan_{,un}register_globals.  Set DECL_IGNORED_P on
the decls.

From-SVN: r193532

12 years agoAdd myself as asan co-reviewer
Dodji Seketeli [Thu, 15 Nov 2012 12:36:50 +0000 (12:36 +0000)]
Add myself as asan co-reviewer

ChangeLog:

* MAINTAINERS: (asan.c, related): Add myself.

From-SVN: r193530

12 years agoMakefile.in (if_multiarch): Don't use a GNU make 3.81 feature.
Matthias Klose [Thu, 15 Nov 2012 11:58:42 +0000 (11:58 +0000)]
Makefile.in (if_multiarch): Don't use a GNU make 3.81 feature.

2012-11-15  Matthias Klose  <doko@ubuntu.com>

        * Makefile.in (if_multiarch): Don't use a GNU make 3.81 feature.

From-SVN: r193529

12 years agotests
Jason Merrill [Thu, 15 Nov 2012 01:54:00 +0000 (20:54 -0500)]
tests

From-SVN: r193527

12 years agore PR c++/37276 (Trouble with some (C99?) math builtins and namespace std)
Jason Merrill [Thu, 15 Nov 2012 01:53:48 +0000 (20:53 -0500)]
re PR c++/37276 (Trouble with some (C99?) math builtins and namespace std)

PR c++/37276
* decl.c (decls_match): Remove #ifdef around earlier fix.

From-SVN: r193526

12 years agoclass.c (finish_struct_1): Check virtual functions for missing ABI tags.
Jason Merrill [Thu, 15 Nov 2012 01:53:37 +0000 (20:53 -0500)]
class.c (finish_struct_1): Check virtual functions for missing ABI tags.

* class.c (finish_struct_1): Check virtual functions
for missing ABI tags.

From-SVN: r193525

12 years agore PR c++/55275 (abi_tag attribute doesn't work on explicit specializations of class...
Jason Merrill [Thu, 15 Nov 2012 01:53:23 +0000 (20:53 -0500)]
re PR c++/55275 (abi_tag attribute doesn't work on explicit specializations of class templates)

PR c++/55275
* pt.c (maybe_process_partial_specialization): Update
DECL_SOURCE_LOCATION for new specializations.

From-SVN: r193524

12 years agore PR libstdc++/53841 ([C++11] condition_variable::wait_until() fails with high resol...
Jonathan Wakely [Thu, 15 Nov 2012 01:38:17 +0000 (01:38 +0000)]
re PR libstdc++/53841 ([C++11] condition_variable::wait_until() fails with high resolution clocks)

PR libstdc++/53841
* include/std/condition_variable (condition_variable::wait_until):
Handle clocks with higher resolution than __clock_t.
(condition_variable::__wait_until_impl): Remove unnecessary _Clock
parameter.
* testsuite/30_threads/condition_variable/members/53841.cc: New.

From-SVN: r193523

12 years agore PR bootstrap/55051 (profiledbootstrap failed)
Jan Hubicka [Thu, 15 Nov 2012 01:07:01 +0000 (02:07 +0100)]
re PR bootstrap/55051 (profiledbootstrap failed)

PR bootstrap/55051
* gcov-io.c (gcov_read_summary): Fix array bound check.

From-SVN: r193522

12 years agoConsider *-*-nacl* targets ELF
Roland McGrath [Thu, 15 Nov 2012 00:38:07 +0000 (00:38 +0000)]
Consider *-*-nacl* targets ELF

* configure.ac (ENABLE_GOLD): Consider *-*-nacl* targets ELF.
* configure: Regenerate.

From-SVN: r193521

12 years agoDaily bump.
GCC Administrator [Thu, 15 Nov 2012 00:18:38 +0000 (00:18 +0000)]
Daily bump.

From-SVN: r193519

12 years agoAdd support for multilib run-time libraries
H.J. Lu [Thu, 15 Nov 2012 00:03:37 +0000 (00:03 +0000)]
Add support for multilib run-time libraries

PR other/55291
* configure.ac (--enable-version-specific-runtime-libs): New option.
(AC_CANONICAL_SYSTEM): New.
(AM_ENABLE_MULTILIB): Moved right after AM_INIT_AUTOMAKE.
(toolexecdir): Support multilib.
(toolexeclibdir): Likewise.
(multilib_arg): New.
* Makefile.in: Regenerated.
* aclocal.m4: Likewise.
* configure: Likewise.
* asan/Makefile.in: Likewise.
* interception/Makefile.in: Likewise.
* sanitizer_common/Makefile.in: Likewise.

From-SVN: r193516

12 years agore PR debug/55328 (ICE: in output_addr_table_entry, at dwarf2out.c:21780 with -gsplit...
Sterling Augustine [Wed, 14 Nov 2012 23:36:50 +0000 (23:36 +0000)]
re PR debug/55328 (ICE: in output_addr_table_entry, at dwarf2out.c:21780 with -gsplit-dwarf)

2012-11-14  Sterling Augustine  <saugustine@google.com>

PR debug/55328
* dwarf2out.c (index_address_table_entry): Check a node's refcount.

From-SVN: r193515

12 years agore PR libstdc++/55320 (Invalid delete with throwing copy-c'tor passed to std::function)
Jonathan Wakely [Wed, 14 Nov 2012 23:33:01 +0000 (23:33 +0000)]
re PR libstdc++/55320 (Invalid delete with throwing copy-c'tor passed to std::function)

PR libstdc++/55320
* include/std/functional (function::function(F)): Set _M_manager after
operations that could throw.
(_Function_base::_Ref_manager::_M_init_functor): Use addressof.
* include/tr1/functional
(_Function_base::_Ref_manager::_M_init_functor): Use addressof.
(_Function_base::_Base_manager::_M_get_pointer): Likewise.
* testsuite/20_util/function/cons/55320.cc: New.
* testsuite/20_util/function/cons/addressof.cc: New.
* testsuite/20_util/function/cons/callable.cc: Remove header.
* testsuite/20_util/bind/ref_neg.cc: Adjust dg-error line numbers.
* testsuite/tr1/3_function_objects/function/10.cc: New.

From-SVN: r193514

12 years agobuiltins.c (define_builtin): Accept ECF flags and use set_call_expr_flags.
Jan Hubicka [Wed, 14 Nov 2012 23:14:05 +0000 (00:14 +0100)]
builtins.c (define_builtin): Accept ECF flags and use set_call_expr_flags.

* builtins.c (define_builtin): Accept ECF flags and
use set_call_expr_flags.
(initialize_builtins): Update.

From-SVN: r193513

12 years agore PR bootstrap/55051 (profiledbootstrap failed)
Jan Hubicka [Wed, 14 Nov 2012 23:03:22 +0000 (00:03 +0100)]
re PR bootstrap/55051 (profiledbootstrap failed)

PR bootstrap/55051
* ipa-inline.c (edge_badness): Improve dumping; fix overflow.

From-SVN: r193512

12 years agoasan-dg.exp: New file.
Jakub Jelinek [Wed, 14 Nov 2012 22:58:01 +0000 (23:58 +0100)]
asan-dg.exp: New file.

* lib/asan-dg.exp: New file.
* gcc.dg/asan/asan.exp: New file.
* g++.dg/dg.exp: Prune also asan tests.
* g++.dg/asan/asan.exp: New file.
* c-c++-common/asan/memcmp-1.c: New test.

From-SVN: r193511

12 years agot-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.
Matthias Klose [Wed, 14 Nov 2012 22:45:25 +0000 (22:45 +0000)]
t-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.

2012-11-14  Matthias Klose  <doko@ubuntu.com>

        * config/sparc/t-linux64: Add multiarch names in MULTILIB_OSDIRNAMES.
        * config/sparc/t-linux: New file; define MULTIARCH_DIRNAME.
        * config.gcc <sparc-*-linux*> (tmake_file): Include sparc/t-linux
        for 32bit non-biarch configurations.

From-SVN: r193510

12 years agoabi_tag.cc: Adjust expected demangling for 128bit long-double targets.
Uros Bizjak [Wed, 14 Nov 2012 22:23:51 +0000 (23:23 +0100)]
abi_tag.cc: Adjust expected demangling for 128bit long-double targets.

* testsuite/26_numerics/complex/abi_tag.cc: Adjust expected
demangling for 128bit long-double targets.

From-SVN: r193509

12 years agoinvoke.texi: Document -print-multiarch.
Matthias Klose [Wed, 14 Nov 2012 21:29:15 +0000 (21:29 +0000)]
invoke.texi: Document -print-multiarch.

2012-11-14  Matthias Klose  <doko@ubuntu.com>

        * doc/invoke.texi: Document -print-multiarch.
        * doc/install.texi: Document --enable-multiarch.
        * doc/fragments.texi: Document MULTILIB_OSDIRNAMES, MULTIARCH_DIRNAME.
        * configure.ac: Add --enable-multiarch option.
        * configure: Regenerate.
        * Makefile.in (s-mlib): Pass MULTIARCH_DIRNAME to genmultilib.
        enable_multiarch, with_float: New macros.
        if_multiarch: New macro, define in terms of enable_multiarch.
        * genmultilib: Add new argument for the multiarch name.
        * gcc.c (multiarch_dir): Define.
        (for_each_path): Search for multiarch suffixes.
        (driver_handle_option): Handle multiarch option.
        (do_spec_1): Pass -imultiarch if defined.
        (main): Print multiarch.
        (set_multilib_dir): Separate multilib and multiarch names
        from multilib_select.
        (print_multilib_info): Ignore multiarch names in multilib_select.
        * incpath.c (add_standard_paths): Search the multiarch include dirs.
        * cppdefault.h (default_include): Document multiarch in multilib
        member.
        * cppdefault.c: [LOCAL_INCLUDE_DIR, STANDARD_INCLUDE_DIR] Add an
        include directory for multiarch directories.
        * common.opt: New options --print-multiarch and -imultilib.
        * config.gcc <i[34567]86-*-linux* | x86_64-*-linux*> (tmake_file):
        Include i386/t-linux.
        <i[34567]86-*-kfreebsd*-gnu | x86_64-*-kfreebsd*-gnu> (tmake_file):
        Include i386/t-kfreebsd.
        <i[34567]86-*-gnu*> (tmake_file): Include i386/t-gnu.
        * config/i386/t-linux64: Add multiarch names in
        MULTILIB_OSDIRNAMES, define MULTIARCH_DIRNAME.
        * config/i386/t-gnu: New file.
        * config/i386/t-kfreebsd: Likewise.
        * config/i386/t-linux: Likewise.

From-SVN: r193508

12 years agof95-lang.c (ATTR_NOTHROW_LEAF_MALLOC_LIST): New macro.
Jan Hubicka [Wed, 14 Nov 2012 21:09:58 +0000 (22:09 +0100)]
f95-lang.c (ATTR_NOTHROW_LEAF_MALLOC_LIST): New macro.

* f95-lang.c (ATTR_NOTHROW_LEAF_MALLOC_LIST): New macro.
(gfc_define_builtin): Use set_call_expr_flags.
(gfc_init_builtin_functions): Update.

From-SVN: r193507

12 years agotree.c (set_call_expr_flags): New function.
Jan Hubicka [Wed, 14 Nov 2012 21:08:52 +0000 (22:08 +0100)]
tree.c (set_call_expr_flags): New function.

* tree.c (set_call_expr_flags): New function.
(local_define_builtin): Use it.
* tree.h (set_call_expr_flags): Declare.

From-SVN: r193506

12 years agore PR c++/55323 (ICE in expand_aggr_init_1, at cp/init.c:1718)
Paolo Carlini [Wed, 14 Nov 2012 20:29:07 +0000 (20:29 +0000)]
re PR c++/55323 (ICE in expand_aggr_init_1, at cp/init.c:1718)

/cp
2012-11-14  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/55323
* init.c (emit_mem_initializers): Skip arguments == error_mark_node.

/testsuite
2012-11-14  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/55323
* g++.dg/cpp0x/vt-55323.C: New.

From-SVN: r193505

12 years agore PR c++/11750 (class scope using-declaration lookup not implemented)
Fabien Chêne [Wed, 14 Nov 2012 20:12:47 +0000 (21:12 +0100)]
re PR c++/11750 (class scope using-declaration lookup not implemented)

gcc/testsuite/ChangeLog

2012-11-14  Fabien Chêne  <fabien@gcc.gnu.org>

PR c++/11750
* g++.dg/inherit/vitual9.C: New.

gcc/cp/ChangeLog

2012-11-14  Fabien Chêne  <fabien@gcc.gnu.org>

PR c++/11750
* call.c (build_new_method_call_1): Check that the instance type
and the function context are the same before setting the flag
LOOKUP_NONVIRTUAL.

From-SVN: r193504

12 years agore PR target/47440 (Use LCM for vzeroupper insertion)
Uros Bizjak [Wed, 14 Nov 2012 16:47:29 +0000 (17:47 +0100)]
re PR target/47440 (Use LCM for vzeroupper insertion)

PR target/47440
* config/i386/i386.c (gate_insert_vzeroupper): New function.
(rest_of_handle_insert_vzeroupper): Ditto.
(struct rtl_opt_pass pass_insert_vzeroupper): New.
(ix86_option_override): Register vzeroupper insertion pass here.
(ix86_check_avx256_register): Handle SUBREGs properly.
(ix86_init_machine_status): Remove optimize_mode_switching[AVX_U128]
initialization.

From-SVN: r193503

12 years agoconfigure.ac (HAVE_LD_LARGE_TOC): Add AIX test.
David Edelsohn [Wed, 14 Nov 2012 16:41:21 +0000 (11:41 -0500)]
configure.ac (HAVE_LD_LARGE_TOC): Add AIX test.

        * configure.ac (HAVE_LD_LARGE_TOC): Add AIX test.
        * configure: Regenerated.
        * config/rs6000/aix61.h (SUBTARGET_OVERRIDE_OPTIONS): Warn if
        other toc options used with cmodel. Disable TARGET_NO_FP_IN_TOC
        and TARGET_NO_SUM_IN_TOC if not CMODEL_SMALL. CMODEL_MEDIUM means
        CMODEL_LARGE on AIX.
        (ASM_SPEC): -mvsx implies -mpwr6. Add -many.
        (ASM_DEFAULT_SPEC): Use -mpwr4.
        (TARGET_CMODEL): Define.
        (SET_CMODEL): Define.
        * config/rs6000/rs6000.md (largetoc_high_aix<mode>): New.
        (largetoc_high_plus_aix<mode>): New.
        (largetoc_low<mode>): Change to mode iterator. Test TARGET_TOC
        instead of TARGET_ELF.
        (tocref): Remove TARGET_ELF test.
        * config/rs6000/rs6000.c (output_toc): Use [TE] for large TOC
        symbols on AIX.
        * config/rs6000/aix64.opt (mcmodel): New.

From-SVN: r193502

12 years agoi386.c (ix86_get_function_versions_dispatcher): Guard variables with ASM_OUTPUT_TYPE_...
Andreas Tobler [Wed, 14 Nov 2012 15:55:50 +0000 (16:55 +0100)]
i386.c (ix86_get_function_versions_dispatcher): Guard variables with ASM_OUTPUT_TYPE_DIRECTIVE and HAVE_GNU_INDIRECT_FUNCTION...

2012-11-14  Andreas Tobler  <andreast@fgznet.ch>

* config/i386/i386.c (ix86_get_function_versions_dispatcher): Guard
variables with ASM_OUTPUT_TYPE_DIRECTIVE and
HAVE_GNU_INDIRECT_FUNCTION where needed.

From-SVN: r193501

12 years agoCheck __x86_64__ instead of __WORDSIZE
H.J. Lu [Wed, 14 Nov 2012 13:45:56 +0000 (13:45 +0000)]
Check __x86_64__ instead of __WORDSIZE

PR other/55292
Backport from upstream revision 167883
* sanitizer_common/sanitizer_linux.cc (internal_mmap): Check
__x86_64__ instead of __WORDSIZE.
(internal_filesize): Likwise.

From-SVN: r193500

12 years agoDon't set AC_CONFIG_AUX_DIR
H.J. Lu [Wed, 14 Nov 2012 12:21:28 +0000 (12:21 +0000)]
Don't set AC_CONFIG_AUX_DIR

* configure.ac (AC_CONFIG_AUX_DIR): Removed.
* Makefile.in: Regenerated.
* configure: Likewise.

From-SVN: r193499

12 years agoRename libsanitizer/ChangeLog.asan to libsanitizer/ChangeLog
H.J. Lu [Wed, 14 Nov 2012 11:41:10 +0000 (03:41 -0800)]
Rename libsanitizer/ChangeLog.asan to libsanitizer/ChangeLog

From-SVN: r193498

12 years agoUpdate libsanitizer generated files
H.J. Lu [Wed, 14 Nov 2012 11:09:00 +0000 (11:09 +0000)]
Update libsanitizer generated files

* gcc_update: Update libsanitizer generated files.

From-SVN: r193497

12 years agoDaily bump.
GCC Administrator [Wed, 14 Nov 2012 00:18:21 +0000 (00:18 +0000)]
Daily bump.

From-SVN: r193494

12 years agoUpdate configure.ac for GCC tree and remove unused files
H.J. Lu [Wed, 14 Nov 2012 00:02:12 +0000 (00:02 +0000)]
Update configure.ac for GCC tree and remove unused files

PR other/55304
* acinclude.m4: New file.
* Makefile.am (ACLOCAL_AMFLAGS): New.
* configure.ac (AC_PREREQ): Set to 2.64.
(AC_CONFIG_AUX_DIR): Set to "..".
* Makefile.in: Regenerated.
* aclocal.m4: Likewise.
* configure: Likewise.
* asan/Makefile.in: Likewise.
* interception/Makefile.in: Likewise.
* sanitizer_common/Makefile.in: Likewise.

* config.guess: Removed.
* config.sub: Likewise.
* depcomp: Likewise.
* install-sh: Likewise.
* ltmain.sh: Likewise.
* missing: Likewise.

From-SVN: r193491

12 years agocommon.opt (fPIC, [...]): Create a Negative loop such that any of these options disab...
Ian Lance Taylor [Tue, 13 Nov 2012 23:03:56 +0000 (23:03 +0000)]
common.opt (fPIC, [...]): Create a Negative loop such that any of these options disables the others.

* common.opt (fPIC, fPIE, fpic, fpie): Create a Negative loop such
that any of these options disables the others.

From-SVN: r193489

12 years agoMove libsanitizer configure logic to subdirectory
Richard Henderson [Tue, 13 Nov 2012 22:19:44 +0000 (14:19 -0800)]
Move libsanitizer configure logic to subdirectory

From-SVN: r193487

12 years agocgraph.c (insert_new_cgraph_node_version): Use cgraph_get_node instead of cgraph_get_...
Sriraman Tallam [Tue, 13 Nov 2012 21:56:30 +0000 (21:56 +0000)]
cgraph.c (insert_new_cgraph_node_version): Use cgraph_get_node instead of cgraph_get_create_node.

2012-11-13  Sriraman Tallam  <tmsriram@google.com>

* cgraph.c (insert_new_cgraph_node_version): Use cgraph_get_node
instead of cgraph_get_create_node.
* config/i386/i386.c (ix86_get_function_versions_dispatcher): Move ifunc
not supported code to the end.

* class.c (mark_versions_used): Remove.
(resolve_address_of_overloaded_function): Call target hook
for versioned functions. Refactor to call
get_function_versions_dispatcher.
* decl.c (duplicate_decls): Add comments.
* cp/call.c (get_function_version_dispatcher): Expose function.
(mark_versions_used): Expose function.
* cp/cp-tree.h (mark_versions_used): New declaration.
(get_function_version_dispatcher): Ditto.

* testsuite/g++.dg/mv4.C: Add require ifunc. Change error message.
* testsuite/g++.dg/mv5.C: Add require ifunc.
* testsuite/g++.dg/mv6.C: Add require ifunc.

From-SVN: r193486

12 years agore PR other/55312 (libbacktrace doesn't honor --disable-werror)
Ian Lance Taylor [Tue, 13 Nov 2012 21:25:39 +0000 (21:25 +0000)]
re PR other/55312 (libbacktrace doesn't honor --disable-werror)

PR other/55312
* configure.ac: Only add -Werror if building a target library.

From-SVN: r193485

12 years agore PR tree-optimization/55253 (Revision 193298 miscompiles sqlite with -Os)
Martin Jambor [Tue, 13 Nov 2012 18:56:24 +0000 (19:56 +0100)]
re PR tree-optimization/55253 (Revision 193298 miscompiles sqlite with -Os)

2012-11-13  Martin Jambor  <mjambor@suse.cz>

PR tree-optimization/55253
* ipa-cp.c (merge_aggregate_lattices): Propagate aggs_contain_variable
flag.

* testsuite/gcc.dg/torture/pr55253.c: New test.
* testsuite/gcc.dg/torture/pr55305.c: Likewise.

From-SVN: r193484

12 years agoWorkaround PR middle-end/55142
H.J. Lu [Tue, 13 Nov 2012 18:35:32 +0000 (10:35 -0800)]
Workaround PR middle-end/55142

gcc/

2012-11-13  Eric Botcazou  <ebotcazou@adacore.com>
    H.J. Lu  <hongjiu.lu@intel.com>

PR middle-end/55142
* config/i386/i386.c (legitimize_pic_address): Properly handle
REG + CONST.
(ix86_print_operand_address): Set code to 'k' when forcing
addr32 prefix.  For x32, zero-extend negative displacement if
it < -16*1024*1024.

gcc/testsuite/

2012-11-13  H.J. Lu  <hongjiu.lu@intel.com>

PR middle-end/55142
* gcc.target/i386/pr55142-1.c: New file.
* gcc.target/i386/pr55142-2.c: Likewise.

From-SVN: r193483

12 years agomode-switching.c (create_pre_exit): Use NONDEBUG_INSN_P.
Uros Bizjak [Tue, 13 Nov 2012 17:22:04 +0000 (18:22 +0100)]
mode-switching.c (create_pre_exit): Use NONDEBUG_INSN_P.

* mode-switching.c (create_pre_exit): Use NONDEBUG_INSN_P.

From-SVN: r193482

12 years ago* ChangeLog: Fix my last entry.
Uros Bizjak [Tue, 13 Nov 2012 17:08:13 +0000 (18:08 +0100)]
* ChangeLog: Fix my last entry.

From-SVN: r193481

12 years agore PR target/41993 ([sh] ICE in create_pre_exit, at mode-switching.c:399)
Uros Bizjak [Tue, 13 Nov 2012 16:59:37 +0000 (17:59 +0100)]
re PR target/41993 ([sh] ICE in create_pre_exit, at mode-switching.c:399)

PR target/41993
* mode-switching.c (create_pre_exit): Set return_copy to last_insn
when copy_start is a function return regno instead of pseudo.
Skip debug instructions in instruction scan loop.

From-SVN: r193480

12 years agoPR c++/54466 - ICE with alias template which type-id is const qualified
Dodji Seketeli [Tue, 13 Nov 2012 16:07:39 +0000 (16:07 +0000)]
PR c++/54466 - ICE with alias template which type-id is const qualified

Consider this short example:

    template<typename T>
      struct X { };

    template<typename T>
      using Y = const X<T>;

    using Z = Y<int>;

G++ crashes in lookup_class_template_1 while trying to build the alias
template instantiation Y<int>.

I think this is indirectly due to the fact that that
lookup_class_template_1 can now yield a const qualified type like
'const X<T>'.

As a consequence, the code in lookup_template_class_1 that was trying
to access the TYPE_STUB_DECL field of the result of
lookup_template_class_1 should now be adjusted to access the
TYPE_STUB_DECL of the main variant of the resulting type instead (and
that is TYPE_MAIN_DECL); because qualified types (constructed with
build_qualified_type) have their TYPE_STUB_DECL set to NULL.

Fixed thus and tested on x86_64-unknown-linux-gnu against trunk.

gcc/cp

PR c++/54466
* pt.c (lookup_template_class_1): TYPE_STUB_DECL should be
accessed on the main variant of the type.

gcc/testsuite/

* g++.dg/cpp0x/alias-decl-26.C: New test file.

In the example of this patch, g++ crashes when trying to build the
alias template Y<int

From-SVN: r193479

12 years agoEnable libsanitizer just on x86 linux for now
Dodji Seketeli [Tue, 13 Nov 2012 15:12:12 +0000 (15:12 +0000)]
Enable libsanitizer just on x86 linux for now

This patch builds libsanitizer only on x86_64 and i?86 linux targets
for now.  I guess The build can be enabled on other targets when they
are ready.

ChangeLog:

* configure.ac: Enable libsanitizer just on x86 linux for now.
* configure: Re-generate.

From-SVN: r193478

12 years agoconfigure.ac: Disable libsanitizer on AIX.
David Edelsohn [Tue, 13 Nov 2012 14:19:14 +0000 (14:19 +0000)]
configure.ac: Disable libsanitizer on AIX.

        * configure.ac: Disable libsanitizer on AIX. Merge libquadmath
        sections.
        * configure: Regenerate.

From-SVN: r193477

12 years agoarm.c (arm_emit_coreregs_64bit_shift): Fix comment.
Andrew Stubbs [Tue, 13 Nov 2012 13:31:50 +0000 (13:31 +0000)]
arm.c (arm_emit_coreregs_64bit_shift): Fix comment.

2012-11-13  Andrew Stubbs  <ams@codesourcery.com>
            Ulrich Weigand  <ulrich.weigand@linaro.org>

* config/arm/arm.c (arm_emit_coreregs_64bit_shift): Fix comment.
* config/arm/arm.md (opt, opt_enabled): New attributes.
(enabled): Use opt_enabled.
(ashldi3, ashrdi3, lshrdi3): Add TARGET_NEON case.
(ashldi3): Allow general operands for TARGET_NEON case.
* config/arm/iterators.md (rshifts): New code iterator.
(shift, shifttype): New code attributes.
* config/arm/neon.md (UNSPEC_LOAD_COUNT): New unspec type.
(neon_load_count, ashldi3_neon_noclobber, ashldi3_neon,
signed_shift_di3_neon, unsigned_shift_di3_neon,
ashrdi3_neon_imm_noclobber, lshrdi3_neon_imm_noclobber,
<shift>di3_neon): New patterns.

Co-Authored-By: Ulrich Weigand <ulrich.weigand@linaro.org>
From-SVN: r193476

12 years agoEnable x32 check on more i386 tests
H.J. Lu [Tue, 13 Nov 2012 12:31:12 +0000 (12:31 +0000)]
Enable x32 check on more i386 tests

* gcc.target/i386/avx256-unaligned-load-2.c: Requre !ia32
instead of lp64.
* gcc.target/i386/avx256-unaligned-store-2.c: Likewise.
* gcc.target/i386/pr49715-2.c: Likewise.
* gcc.target/i386/retarg.c: Likewise.  Scan both %rdi and %edi.

From-SVN: r193475

12 years ago* Makefile.in (asan.o): Depend on $(TM_P_H).
Jakub Jelinek [Tue, 13 Nov 2012 07:38:25 +0000 (08:38 +0100)]
* Makefile.in (asan.o): Depend on $(TM_P_H).

From-SVN: r193472

12 years agore PR tree-optimization/55281 (ICE in build_int_cst_wide, at tree.c:1217 (with...
Jakub Jelinek [Tue, 13 Nov 2012 07:25:36 +0000 (08:25 +0100)]
re PR tree-optimization/55281 (ICE in  build_int_cst_wide, at tree.c:1217  (with Ofast, ok with O3))

PR tree-optimization/55281
* tree-vect-generic.c (expand_vector_condition): Accept any
is_gimple_val rather than just SSA_NAME if not COMPARISON_CLASS_P.
* fold-const.c (fold_ternary_loc): Fold VEC_COND_EXPR if arg0 is
either integer_all_onesp or integer_zerop.
* tree-vect-stmts.c (vectorizable_condition): Build the condition
using corresponding vector integer type instead of vectype.

* gcc.dg/vect/fast-math-pr55281.c: New test.
* g++.dg/opt/pr55281.C: New test.

From-SVN: r193471

12 years agore PR rtl-optimization/54127 (ICE in maybe_record_trace_start with asm goto, --target...
Jakub Jelinek [Tue, 13 Nov 2012 07:23:51 +0000 (08:23 +0100)]
re PR rtl-optimization/54127 (ICE in maybe_record_trace_start with asm goto, --target=powerpc-unknown-linux-gnu)

PR rtl-optimization/54127
* cfgrtl.c (force_nonfallthru_and_redirect): When redirecting
asm goto labels from BB_HEAD (e->dest) to target bb, decrement
LABEL_NUSES of BB_HEAD (e->dest) and increment LABEL_NUSES of
BB_HEAD (target) appropriately and adjust JUMP_LABEL and/or
REG_LABEL_TARGET and REG_LABEL_OPERAND.

* gcc.dg/torture/pr54127.c: New test.

From-SVN: r193470

12 years agoasan.c (instrument_builtin_call): Fix up dest assignment.
Jakub Jelinek [Tue, 13 Nov 2012 07:21:15 +0000 (08:21 +0100)]
asan.c (instrument_builtin_call): Fix up dest assignment.

* asan.c (instrument_builtin_call) <case BUILT_IN_BCOPY>: Fix up
dest assignment.

From-SVN: r193469

12 years agoGet sparc building again after ASAN merge.
David S. Miller [Tue, 13 Nov 2012 06:53:23 +0000 (06:53 +0000)]
Get sparc building again after ASAN merge.

libsanitizer/

* asan/asan_linux.cc (GetPcSpBp): Add sparc support.

From-SVN: r193468

12 years agore PR target/55257 (g++.dg/debug/dwarf2/non-virtual-thunk.C scan-assembler thunk...
Hans-Peter Nilsson [Tue, 13 Nov 2012 06:15:53 +0000 (06:15 +0000)]
re PR target/55257 (g++.dg/debug/dwarf2/non-virtual-thunk.C scan-assembler thunk.C:30)

PR target/55257
* config/cris/cris.c (cris_asm_output_mi_thunk): Call
final_start_function and final_end_function.

From-SVN: r193467

12 years ago* asan.c: Include tm_p.h
David Edelsohn [Tue, 13 Nov 2012 03:14:28 +0000 (03:14 +0000)]
* asan.c: Include tm_p.h

From-SVN: r193466

12 years agoconfigure.ac: Add section for configdirs for libsanitizer.
Hans-Peter Nilsson [Tue, 13 Nov 2012 01:36:17 +0000 (01:36 +0000)]
configure.ac: Add section for configdirs for libsanitizer.

* configure.ac: Add section for configdirs for libsanitizer.
Disable for cris-*-* and mmix-*-*.
* configure: Regenerate.

From-SVN: r193465

12 years agore PR target/55195 (shorten_branches generates incorrect forward branch distances)
John David Anglin [Tue, 13 Nov 2012 00:36:54 +0000 (00:36 +0000)]
re PR target/55195 (shorten_branches generates incorrect forward branch distances)

PR target/55195
* config/pa/pa.md (type): Add sibcall and sh_func_adrs insn types.
(in_branch_delay): Don't allow sibcall or sh_func_adrs insns.
(in_nullified_branch_delay): Likewise.
(in_call_delay): Likewise.
Define delay for sibcall insns.  Adjust Z3 and Z4 insn reservations for
new types.  Add opaque cond to mark all calls, sibcalls, dyncalls and
the $$sh_func_adrs call as variable.  Update type of sibcalls and
$$sh_func_adrs call.
* config/pa/pa.c (pa_adjust_insn_length): Revise to return updated
length instead of adjustment.  Handle negative and undefined call
adjustments for insn_default_length.  Remove adjustment for millicode
insn with unfilled delay slot.
(pa_output_millicode_call): Update for revised millicode length.
* config/pa/pa.h (ADJUST_INSN_LENGTH): Revise to set LENGTH.

From-SVN: r193464

12 years agoDaily bump.
GCC Administrator [Tue, 13 Nov 2012 00:18:29 +0000 (00:18 +0000)]
Daily bump.

From-SVN: r193463

12 years ago* tree-ssa-ccp.c (dump_lattice_value) <CONSTANT>: Fix duplication.
Eric Botcazou [Mon, 12 Nov 2012 23:32:56 +0000 (23:32 +0000)]
* tree-ssa-ccp.c (dump_lattice_value) <CONSTANT>: Fix duplication.

From-SVN: r193459

12 years agofuture (atomic_future): Remove declaration of non-standard name.
Jonathan Wakely [Mon, 12 Nov 2012 23:00:41 +0000 (23:00 +0000)]
future (atomic_future): Remove declaration of non-standard name.

* include/std/future (atomic_future): Remove declaration of
non-standard name.

From-SVN: r193457

12 years agocommon.opt (fvar-tracking-uninit): Document.
Eric Botcazou [Mon, 12 Nov 2012 22:59:37 +0000 (22:59 +0000)]
common.opt (fvar-tracking-uninit): Document.

* common.opt (fvar-tracking-uninit): Document.
* toplev.c (process_options): Fix handling of flag_var_tracking_uninit.
* config/darwin.c (darwin_override_options): Likewise.

From-SVN: r193456

12 years agosched-vis.c (print_pattern): Handle NULL patterns.
Steven Bosscher [Mon, 12 Nov 2012 22:13:20 +0000 (22:13 +0000)]
sched-vis.c (print_pattern): Handle NULL patterns.

* sched-vis.c (print_pattern): Handle NULL patterns.

From-SVN: r193455

12 years agoconfigure.ac: Check for getexecname.
Ian Lance Taylor [Mon, 12 Nov 2012 21:24:19 +0000 (21:24 +0000)]
configure.ac: Check for getexecname.

* configure.ac: Check for getexecname.
* fileline.c: #include <errno.h>.  Define getexecname if not
available.
(fileline_initialize): Try to find the executable in a few
different ways.
* print.c (error_callback): Only print the filename if it came
from the backtrace state.
* configure, config.h.in: Rebuild.

Co-Authored-By: Gerald Pfeifer <gerald@pfeifer.com>
Co-Authored-By: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
From-SVN: r193454

12 years agore PR rtl-optimization/51447 (global register variable definition incorrectly removed...
Steven Bosscher [Mon, 12 Nov 2012 20:21:59 +0000 (20:21 +0000)]
re PR rtl-optimization/51447 (global register variable definition incorrectly removed as dead code)

gcc/
PR rtl-optimization/51447
* df-scan.c (df_get_entry_block_def_set): Add global regs to the set.
* df-problems.c (df_lr_local_compute): Make global regs always live.
* dce.c (deletable_insn_p): Make insns setting a global reg
inherently necessary.

testsuite/
PR rtl-optimization/51447
* gcc.c-torture/execute/pr51447.c: New test.

From-SVN: r193453

12 years agoUse CSINC instead of CSEL to return 1 (AArch64)
Ian Bolton [Mon, 12 Nov 2012 19:39:46 +0000 (19:39 +0000)]
Use CSINC instead of CSEL to return 1 (AArch64)

From-SVN: r193452

12 years agoOptimise comparison where intermediate result not used (AArch64)
Ian Bolton [Mon, 12 Nov 2012 19:35:24 +0000 (19:35 +0000)]
Optimise comparison where intermediate result not used (AArch64)

From-SVN: r193450

12 years agosyscall: Force first letter of error message to lower case.
Ian Lance Taylor [Mon, 12 Nov 2012 19:34:52 +0000 (19:34 +0000)]
syscall: Force first letter of error message to lower case.

From-SVN: r193449

12 years agogcc_update: Add libquadmath generated files.
Tobias Burnus [Mon, 12 Nov 2012 19:26:53 +0000 (20:26 +0100)]
gcc_update: Add libquadmath generated files.

2012-11-12  Tobias Burnus  <burnus@net-b.de>

        * gcc_update: Add libquadmath generated files.

From-SVN: r193448

12 years agoAdd libsanitizer generated files
H.J. Lu [Mon, 12 Nov 2012 18:56:36 +0000 (18:56 +0000)]
Add libsanitizer generated files

* gcc_update: Add libsanitizer generated files.

From-SVN: r193447

12 years ago* include/std/complex (real, imag): Add ABI tag in C++11 mode.
Jason Merrill [Mon, 12 Nov 2012 17:51:26 +0000 (12:51 -0500)]
* include/std/complex (real, imag): Add ABI tag in C++11 mode.

From-SVN: r193445

12 years agoRemove ChangeLog.asan
Dodji Seketeli [Mon, 12 Nov 2012 16:46:03 +0000 (17:46 +0100)]
Remove ChangeLog.asan

* ChangeLog.asan: Remove this, as it got accidentally in from the
merging of the asan branch into trunk.

From-SVN: r193444

12 years agoinvoke.texi: Move -faddress-sanitizer from Optimization Options to Debugging Options.
Tobias Burnus [Mon, 12 Nov 2012 16:44:03 +0000 (17:44 +0100)]
invoke.texi: Move -faddress-sanitizer from Optimization Options to Debugging Options.

2012-11-12  Tobias Burnus  <burnus@net-b.de>

        * doc/invoke.texi: Move -faddress-sanitizer from Optimization
        Options to Debugging Options.

From-SVN: r193443

12 years ago* asan.c: Formatting cleanups.
Jakub Jelinek [Mon, 12 Nov 2012 16:18:59 +0000 (17:18 +0100)]
* asan.c: Formatting cleanups.

From-SVN: r193442

12 years agoImport the asan runtime library into GCC tree
Wei Mi [Mon, 12 Nov 2012 15:53:47 +0000 (15:53 +0000)]
Import the asan runtime library into GCC tree

This patch imports the runtime library in the GCC tree, ensures that
-lasan is passed to the linker when -faddress-sanitizer is used and
sets up the build system accordingly.

ChangeLog:

* configure.ac: Add libsanitizer to target_libraries.
* Makefile.def: Ditto.
* configure: Regenerate.
* Makefile.in: Regenerate.
* libsanitizer: New directory for asan runtime.  Contains an empty
tsan directory.

gcc/ChangeLog:

* gcc.c (LINK_COMMAND_SPEC): Add -laddress-sanitizer to link
command if -faddress-sanitizer is on.

libsanitizer:

Initial checkin: migrate asan runtime from llvm.

From-SVN: r193441

12 years agoInstrument built-in memory access function calls
Dodji Seketeli [Mon, 12 Nov 2012 15:53:25 +0000 (15:53 +0000)]
Instrument built-in memory access function calls

This patch instruments many memory access patterns through builtins.

Basically, for a call like:

     __builtin_memset (from, 0, n_bytes);

the patch would only instrument the accesses at the beginning and at
the end of the memory region [from, from + n_bytes].  This is the
strategy used by the llvm implementation of asan.

This instrumentation is done for all the memory access builtin
functions that expose a well specified memory region -- one that
explicitly states the number of bytes accessed in the region.

A special treatment is used for __builtin_strlen.  The patch
instruments the access to the first byte of its argument, as well as
the access to the byte (of the argument) at the offset returned by
strlen.

For the __sync_* and __atomic* calls the patch instruments the access
to the bytes pointed to by the argument.

While doing this, I have added a new parameter to build_check_stmt to
decide whether to insert the instrumentation code before or after the
statement iterator.  This allows us to do away with the
gsi_{next,prev} dance we were doing in the callers of this function.

Tested by running cc1 -fasan on variations of simple programs like:

    int
    foo ()
    {
      char foo[10] = {0};

      foo[0] = 't';
      foo[1] = 'e';
      foo[2] = 's';
      foo[3] = 't';
      int l = __builtin_strlen (foo);
      int n = sizeof (foo);
      __builtin_memset (&foo[4], 0, n - 4);
      __sync_fetch_and_add (&foo[11], 1);

      return l;
    }

and by starring at the gimple output which for this function is:

    ;; Function foo (foo, funcdef_no=0, decl_uid=1714, cgraph_uid=0)

    foo ()
    {
      int n;
      int l;
      char foo[10];
      int D.1725;
      char * D.1724;
      int D.1723;
      long unsigned int D.1722;
      int D.1721;
      long unsigned int D.1720;
      long unsigned int _1;
      int _4;
      long unsigned int _5;
      int _6;
      char * _7;
      int _8;
      char * _9;
      unsigned long _10;
      unsigned long _11;
      unsigned long _12;
      signed char * _13;
      signed char _14;
      _Bool _15;
      unsigned long _16;
      signed char _17;
      _Bool _18;
      _Bool _19;
      char * _20;
      unsigned long _21;
      unsigned long _22;
      unsigned long _23;
      signed char * _24;
      signed char _25;
      _Bool _26;
      unsigned long _27;
      signed char _28;
      _Bool _29;
      _Bool _30;
      char * _31;
      unsigned long _32;
      unsigned long _33;
      unsigned long _34;
      signed char * _35;
      signed char _36;
      _Bool _37;
      unsigned long _38;
      signed char _39;
      _Bool _40;
      _Bool _41;
      char * _42;
      unsigned long _43;
      unsigned long _44;
      unsigned long _45;
      signed char * _46;
      signed char _47;
      _Bool _48;
      unsigned long _49;
      signed char _50;
      _Bool _51;
      _Bool _52;
      char * _53;
      unsigned long _54;
      unsigned long _55;
      unsigned long _56;
      signed char * _57;
      signed char _58;
      _Bool _59;
      unsigned long _60;
      signed char _61;
      _Bool _62;
      _Bool _63;
      char[10] * _64;
      unsigned long _65;
      unsigned long _66;
      unsigned long _67;
      signed char * _68;
      signed char _69;
      _Bool _70;
      unsigned long _71;
      signed char _72;
      _Bool _73;
      _Bool _74;
      unsigned long _75;
      unsigned long _76;
      unsigned long _77;
      signed char * _78;
      signed char _79;
      _Bool _80;
      unsigned long _81;
      signed char _82;
      _Bool _83;
      _Bool _84;
      long unsigned int _85;
      long unsigned int _86;
      char * _87;
      char * _88;
      unsigned long _89;
      unsigned long _90;
      unsigned long _91;
      signed char * _92;
      signed char _93;
      _Bool _94;
      unsigned long _95;
      signed char _96;
      _Bool _97;
      _Bool _98;
      char * _99;
      unsigned long _100;
      unsigned long _101;
      unsigned long _102;
      signed char * _103;
      signed char _104;
      _Bool _105;
      unsigned long _106;
      signed char _107;
      _Bool _108;
      _Bool _109;

      <bb 2>:
      foo = {};
      _9 = &foo[0];
      _10 = (unsigned long) _9;
      _11 = _10 >> 3;
      _12 = _11 + 17592186044416;
      _13 = (signed char *) _12;
      _14 = *_13;
      _15 = _14 != 0;
      _16 = _10 & 7;
      _17 = (signed char) _16;
      _18 = _17 >= _14;
      _19 = _15 & _18;
      if (_19 != 0)
goto <bb 5>;
      else
goto <bb 4>;

      <bb 5>:
      __asan_report_store1 (_10);

      <bb 4>:
      foo[0] = 116;
      _20 = &foo[1];
      _21 = (unsigned long) _20;
      _22 = _21 >> 3;
      _23 = _22 + 17592186044416;
      _24 = (signed char *) _23;
      _25 = *_24;
      _26 = _25 != 0;
      _27 = _21 & 7;
      _28 = (signed char) _27;
      _29 = _28 >= _25;
      _30 = _26 & _29;
      if (_30 != 0)
goto <bb 7>;
      else
goto <bb 6>;

      <bb 7>:
      __asan_report_store1 (_21);

      <bb 6>:
      foo[1] = 101;
      _31 = &foo[2];
      _32 = (unsigned long) _31;
      _33 = _32 >> 3;
      _34 = _33 + 17592186044416;
      _35 = (signed char *) _34;
      _36 = *_35;
      _37 = _36 != 0;
      _38 = _32 & 7;
      _39 = (signed char) _38;
      _40 = _39 >= _36;
      _41 = _37 & _40;
      if (_41 != 0)
goto <bb 9>;
      else
goto <bb 8>;

      <bb 9>:
      __asan_report_store1 (_32);

      <bb 8>:
      foo[2] = 115;
      _42 = &foo[3];
      _43 = (unsigned long) _42;
      _44 = _43 >> 3;
      _45 = _44 + 17592186044416;
      _46 = (signed char *) _45;
      _47 = *_46;
      _48 = _47 != 0;
      _49 = _43 & 7;
      _50 = (signed char) _49;
      _51 = _50 >= _47;
      _52 = _48 & _51;
      if (_52 != 0)
goto <bb 11>;
      else
goto <bb 10>;

      <bb 11>:
      __asan_report_store1 (_43);

      <bb 10>:
      foo[3] = 116;
      _53 = (char *) &foo;
      _54 = (unsigned long) _53;
      _55 = _54 >> 3;
      _56 = _55 + 17592186044416;
      _57 = (signed char *) _56;
      _58 = *_57;
      _59 = _58 != 0;
      _60 = _54 & 7;
      _61 = (signed char) _60;
      _62 = _61 >= _58;
      _63 = _59 & _62;
      if (_63 != 0)
goto <bb 13>;
      else
goto <bb 12>;

      <bb 13>:
      __asan_report_load1 (_54);

      <bb 12>:
      _1 = __builtin_strlen (&foo);
      _64 = _53 + _1;
      _65 = (unsigned long) _64;
      _66 = _65 >> 3;
      _67 = _66 + 17592186044416;
      _68 = (signed char *) _67;
      _69 = *_68;
      _70 = _69 != 0;
      _71 = _65 & 7;
      _72 = (signed char) _71;
      _73 = _72 >= _69;
      _74 = _70 & _73;
      if (_74 != 0)
goto <bb 15>;
      else
goto <bb 14>;

      <bb 15>:
      __asan_report_load1 (_65);

      <bb 14>:
      l_2 = (int) _1;
      n_3 = 10;
      _4 = n_3 + -4;
      _5 = (long unsigned int) _4;
      _6 = l_2 + 1;
      _7 = &foo[_6];
      if (_5 != 0)
goto <bb 17>;
      else
goto <bb 16>;

      <bb 17>:
      _75 = (unsigned long) _7;
      _76 = _75 >> 3;
      _77 = _76 + 17592186044416;
      _78 = (signed char *) _77;
      _79 = *_78;
      _80 = _79 != 0;
      _81 = _75 & 7;
      _82 = (signed char) _81;
      _83 = _82 >= _79;
      _84 = _80 & _83;
      _85 = _5;
      _86 = _85 - 1;
      _87 = _7;
      _88 = _87 + _86;
      _89 = (unsigned long) _88;
      _90 = _89 >> 3;
      _91 = _90 + 17592186044416;
      _92 = (signed char *) _91;
      _93 = *_92;
      _94 = _93 != 0;
      _95 = _89 & 7;
      _96 = (signed char) _95;
      _97 = _96 >= _93;
      _98 = _94 & _97;
      if (_98 != 0)
goto <bb 21>;
      else
goto <bb 20>;

      <bb 21>:
      __asan_report_store1 (_89);

      <bb 20>:
      if (_84 != 0)
goto <bb 19>;
      else
goto <bb 18>;

      <bb 19>:
      __asan_report_store1 (_75);

      <bb 18>:

      <bb 16>:
      __builtin_memset (_7, 0, _5);
      _99 = &foo[11];
      _100 = (unsigned long) _99;
      _101 = _100 >> 3;
      _102 = _101 + 17592186044416;
      _103 = (signed char *) _102;
      _104 = *_103;
      _105 = _104 != 0;
      _106 = _100 & 7;
      _107 = (signed char) _106;
      _108 = _107 >= _104;
      _109 = _105 & _108;
      if (_109 != 0)
goto <bb 23>;
      else
goto <bb 22>;

      <bb 23>:
      __asan_report_store1 (_100);

      <bb 22>:
      __sync_fetch_and_add_1 (&foo[11], 1);
      _8 = l_2;
      foo ={v} {CLOBBER};

    <L1>:
      return _8;

    }

    ;; Function _GLOBAL__sub_I_00099_0_foo (_GLOBAL__sub_I_00099_0_foo, funcdef_no=1, decl_uid=1752, cgraph_uid=4)

    _GLOBAL__sub_I_00099_0_foo ()
    {
      <bb 2>:
      __asan_init ();
      return;

    }

gcc/
* gimple.h (is_gimple_builtin_call): Declare ...
* gimple.c (is_gimple_builtin_call): ... New public function.
* asan.c (insert_if_then_before_iter, instrument_mem_region_access,
instrument_strlen_call, maybe_instrument_builtin_call,
instrument_call): New static functions.
(create_cond_insert_point): Renamed
create_cond_insert_point_before_iter into this.  Add a new
parameter to decide whether to insert the condition before or
after the statement iterator.
(build_check_stmt): Adjust for the new create_cond_insert_point.
Add a new parameter to decide whether to add the instrumentation
code before or after the statement iterator.
(instrument_assignment): Factorize from ...
(transform_statements): ... here.  Use maybe_instrument_call to
instrument builtin function calls as well.
(instrument_derefs): Adjust for the new parameter of
build_check_stmt.  Fix detection of bit-field access.

From-SVN: r193440

12 years agoFactorize condition insertion code out of build_check_stmt
Dodji Seketeli [Mon, 12 Nov 2012 15:53:12 +0000 (15:53 +0000)]
Factorize condition insertion code out of build_check_stmt

This patch splits a new create_cond_insert_point_before_iter function
out of build_check_stmt, to be used by a later patch.

Tested by running cc1 -fasan on the test program below with and
without the patch and by inspecting the gimple output to see that
there is no change.

void
foo ()
{
  char foo[1] = {0};

  foo[0] = 1;
}

gcc/

* asan.c (create_cond_insert_point_before_iter): Factorize out of ...
(build_check_stmt): ... here.

From-SVN: r193439

12 years agoMake build_check_stmt accept an SSA_NAME for its base
Dodji Seketeli [Mon, 12 Nov 2012 15:52:56 +0000 (15:52 +0000)]
Make build_check_stmt accept an SSA_NAME for its base

This patch makes build_check_stmt accept its memory access parameter
to be an SSA name.  This is useful for a subsequent patch that will
re-use.

Tested by running cc1 -fasan on the program below with and without the
patch and inspecting the gimple output to see that there is no change.

void
foo ()
{
  char foo[1] = {0};

  foo[0] = 1;
}

gcc/
* asan.c (build_check_stmt): Accept the memory access to be
represented by an SSA_NAME.

From-SVN: r193438

12 years agoImplement protection of global variables
Jakub Jelinek [Mon, 12 Nov 2012 15:52:42 +0000 (16:52 +0100)]
Implement protection of global variables

This patch implements the protection of global variables.  See the
comments appended to the beginning of the asan.c file.

* varasm.c: Include asan.h.
(assemble_noswitch_variable): Grow size by asan_red_zone_size
if decl is asan protected.
(place_block_symbol): Likewise.
(assemble_variable): If decl is asan protected, increase
DECL_ALIGN if needed, and for decls emitted using
assemble_variable_contents append padding zeros after it.
* Makefile.in (varasm.o): Depend on asan.h.
* asan.c: Include output.h.
(asan_pp, asan_pp_initialized, asan_ctor_statements): New variables.
(asan_pp_initialize, asan_pp_string): New functions.
(asan_emit_stack_protection): Use asan_pp{,_initialized}
instead of local pp{,_initialized} vars, use asan_pp_initialize
and asan_pp_string helpers.
(asan_needs_local_alias, asan_protect_global,
asan_global_struct, asan_add_global): New functions.
(asan_finish_file): Protect global vars that can be protected. Use
asan_ctor_statements instead of ctor_statements
* asan.h (asan_protect_global): New prototype.
(asan_red_zone_size): New inline function.

Co-Authored-By: Wei Mi <wmi@google.com>
From-SVN: r193437