re PR c++/85462 (internal compiler error: in inc_refcount_use, at cp/pt.c:8955)

PR c++/85462
* cp-tree.h (tinst_level): Remove in_system_header_p member,
change refcount member from unsigned char to unsigned short,
add refcount_infinity static data member, adjust comments.
* pt.c (tinst_level::refcount_infinity): Define.
(inc_refcount_use): Remove assert, don't increment if refcount
is already refcount_infinity, adjust comment.
(dec_refcount_use): Remove assert, don't decrement if refcount
is refcount_infinity, adjust comment.
(push_tinst_level_loc): Formatting fix.

* g++.dg/cpp0x/pr85462.C: New test.

From-SVN: r259516

Daily bump.

From-SVN: r259515

invoke.texi: Add -floop-unroll-and-jam to options enabled by -O3.

2018-04-19  Toon Moene  <toon@moene.org>

* doc/invoke.texi: Add -floop-unroll-and-jam to options enabled
by -O3.

From-SVN: r259509

Require CET target on gcc.target/i386/pr85404.c

Need a working CET assembler to assemble the compiler output.

* gcc.target/i386/pr85404.c: Require CET target.

From-SVN: r259508

re PR tree-optimization/85467 (ICE: verify_gimple failed: non-trivial conversion at assignment with -O2 -fno-tree-ccp --param=sccvn-max-scc-size=10)

PR tree-optimization/85467
* fold-const.c (fold_ternary_loc) <case BIT_FIELD_REF>: Use
VECTOR_TYPE_P macro.  If type is vector type, VIEW_CONVERT_EXPR the
VECTOR_CST element to type.

* gcc.dg/pr85467.c: New test.

From-SVN: r259507

re PR c++/84611 (ICE in operator[], at vec.h:826 (local_class_index()))

/cp
2018-04-19  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/84611
* pt.c (lookup_template_class_1): Check pushtag return value for
error_mark_node.

/testsuite
2018-04-19  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/84611
* g++.dg/parse/crash68.C: New.

From-SVN: r259505

libgcc/CET: Skip signal frames when unwinding shadow stack

When -fcf-protection -mcet is used, I got

FAIL: g++.dg/eh/sighandle.C

(gdb) bt
 #0  _Unwind_RaiseException (exc=exc@entry=0x416ed0)
    at /export/gnu/import/git/sources/gcc/libgcc/unwind.inc:140
 #1  0x00007ffff7d9936b in __cxxabiv1::__cxa_throw (obj=<optimized out>,
    tinfo=0x403dd0 <typeinfo for int@@CXXABI_1.3>, dest=0x0)
    at /export/gnu/import/git/sources/gcc/libstdc++-v3/libsupc++/eh_throw.cc:90
 #2  0x0000000000401255 in sighandler (signo=11, si=0x7fffffffd6f8,
    uc=0x7fffffffd5c0)
    at /export/gnu/import/git/sources/gcc/gcc/testsuite/g++.dg/eh/sighandle.C:9
 #3  <signal handler called> <<<< Signal frame which isn't on shadow stack
 #4  dosegv ()
    at /export/gnu/import/git/sources/gcc/gcc/testsuite/g++.dg/eh/sighandle.C:14
 #5  0x00000000004012e3 in main ()
    at /export/gnu/import/git/sources/gcc/gcc/testsuite/g++.dg/eh/sighandle.C:30
(gdb) p frames
$6 = 5
(gdb)

frame count should be 4, not 5.  This patch skips signal frames when
unwinding shadow stack.

gcc/testsuite/

PR libgcc/85334
* g++.dg/torture/pr85334.C: New test.

libgcc/

PR libgcc/85334
* unwind-generic.h (_Unwind_Frames_Increment): New.
* config/i386/shadow-stack-unwind.h (_Unwind_Frames_Increment):
Likewise.
* unwind.inc (_Unwind_RaiseException_Phase2): Increment frame
count with _Unwind_Frames_Increment.
(_Unwind_ForcedUnwind_Phase2): Likewise.

From-SVN: r259502

PR c++/85464 - missing location for -Wignored-qualifiers diagnostic

* g++.dg/diagnostic/pr85464.C: New.

From-SVN: r259501

i386: Add save_stack_nonlocal and restore_stack_nonlocal

Define STACK_SAVEAREA_MODE to hold both shadow stack and stack pointers.
Replace builtin_setjmp_setup and builtin_longjmp with save_stack_nonlocal
and restore_stack_nonlocal to support both builtin setjmp/longjmp as well
as non-local goto in nested functions.

gcc/

PR target/85397
* config/i386/i386.h (STACK_SAVEAREA_MODE): New.
* config/i386/i386.md (builtin_setjmp_setup): Removed.
(builtin_longjmp): Likewise.
(save_stack_nonlocal): New pattern.
(restore_stack_nonlocal): Likewise.

gcc/testsuite/

PR target/85397
* gcc.dg/torture/pr85397-1.c: New test.
* gcc.target/i386/cet-sjlj-6a.c: Adjusted.
* gcc.target/i386/cet-sjlj-6b.c: Likewise.

From-SVN: r259500

x86/cet: Properly output labels in property note section

Replace ASM_OUTPUT_LABEL with fprintf so that internal labels in property
note section are unchanged by -fleading-underscore.

gcc/

PR target/85404
* config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
Replace ASM_OUTPUT_LABEL with fprintf.

gcc/testsuite/

PR target/85404
* gcc.target/i386/pr85404.c: New test.

From-SVN: r259498

libgcc/CET: Add _CET_ENDBR to __stack_split_initialize

Program received signal SIGSEGV, Segmentation fault.
__stack_split_initialize ()
    at /export/gnu/import/git/sources/gcc/libgcc/config/i386/morestack.S:751
751 leaq -16000(%rsp),%rax # We should have at least 16K.
Missing separate debuginfos, use: dnf debuginfo-install libgcc-8.0.1-0.21.0.fc28.x86_64
(gdb) disass
Dump of assembler code for function __stack_split_initialize:
=> 0x0000000000402858 <+0>: lea    -0x3e80(%rsp),%rax
   0x0000000000402860 <+8>: mov    %rax,%fs:0x70
   0x0000000000402869 <+17>: sub    $0x8,%rsp
   0x000000000040286d <+21>: mov    %rsp,%rdi
   0x0000000000402870 <+24>: mov    $0x3e80,%esi
   0x0000000000402875 <+29>: callq  0x401810 <__generic_morestack_set_initial_sp>
   0x000000000040287a <+34>: add    $0x8,%rsp
   0x000000000040287e <+38>: retq
End of assembler dump.
(gdb)

This patch adds the missing ENDBR to __stack_split_initialize.

PR libgcc/85379
* config/i386/morestack.S (__stack_split_initialize): Add
_CET_ENDBR.

From-SVN: r259497

x86: Enable -fcf-protection with multi-byte NOPs

-fcf-protection -mcet can't be used with IFUNC features, like symbol
multiversioning or target clone, since IBT/SHSTK are applied to the whole
program and they may be disabled in some functions.  But -fcf-protection
is implemented with multi-byte NOPs on all 64-bit processors as well as
32-bit processors starting with Pentium Pro.  If -fcf-protection requires
-mcet, IFUNC features can't be used on Linux when -fcf-protection is
enabled by default.

This patch changes -fcf-protection to implement indirect branch and
return address tracking with multi-byte NOPs.  -mibt and -mshstk are
changed to only enable CET built-in functions.  CET tests are updated
to allow -fcf-protection without -mibt, -mshstk and -mcet on x86.
-fcf-protection=none are also added to tests which fail with
-fcf-protection so that -fcf-protection can be added to RUNTESTFLAGS
to verify -fcf-protection implementation.

gcc/

PR target/85417
* config/i386/cet.c (file_end_indicate_exec_stack_and_cet):
Check flag_cf_protection instead of TARGET_IBT and TARGET_SHSTK.
* config/i386/i386-c.c (ix86_target_macros_internal): Also
define __IBT__ and __SHSTK__ for -fcf-protection.
* config/i386/i386.c (pass_insert_endbranch::gate): Don't check
TARGET_IBT.
(ix86_trampoline_init): Likewise.
(x86_output_mi_thunk): Likewise.
(ix86_notrack_prefixed_insn_p): Likewise.
(ix86_option_override_internal): Don't disallow -fcf-protection.
* config/i386/i386.md (rdssp<mode>): Also enable for
-fcf-protection.
(incssp<mode>): Likewise.
(nop_endbr): Likewise.
* config/i386/i386.opt (mcet): Change help message to built-in
functions only.
(mibt): Likewise.
(mshstk): Likewise.
* doc/invoke.texi: Remove -mcet, -mibt and -mshstk condition
on -fcf-protection.  Change -mcet, -mibt and -mshstk to only
enable CET built-in functions.

gcc/testsuite/

PR target/85417
* c-c++-common/attr-nocf-check-1.c: Compile with
-fcf-protection=none.
* c-c++-common/attr-nocf-check-3.c: Likewise.
* gcc.dg/march-generic.c: Likewise.
* gcc.target/i386/align-limit.c: Likewise.
* gcc.target/i386/cet-notrack-icf-1.c: Likewise.
* gcc.target/i386/cet-notrack-icf-3.c: Likewise.
* gcc.target/i386/cet-property-2.c: Likewise.
* gcc.target/i386/ret-thunk-26.c: Likewise.
* c-c++-common/fcf-protection-1.c: Remove dg-error for x86
targets.
* c-c++-common/fcf-protection-2.c: Likewise.
* c-c++-common/fcf-protection-3.c: Likewise.
* c-c++-common/fcf-protection-5.c: Likewise.
* c-c++-common/fcf-protection-6.c: Likewise.
* c-c++-common/fcf-protection-7.c: Likewise.
* gcc.target/i386/cet-label-3.c: New test.
* gcc.target/i386/cet-property-3.c: Likewise.
* gcc.target/i386/cet-sjlj-7.c: Likewise.
* gcc.target/i386/pr85417-1.c: Likewise.
* gcc.target/i386/indirect-thunk-attr-7.c: Also expect
__x86_indirect_thunk_nt_(r|e)ax
* gcc.target/i386/indirect-thunk-extern-7.c: Likewise.
* gcc.target/i386/pr85403.c: Remove dg-error,

From-SVN: r259496

i386-common.c (OPTION_MASK_ISA_MOVDIRI_SET, [...]): New defines.

2018-04-19  Sebastian Peryt  <sebastian.peryt@intel.com>

gcc/

* common/config/i386/i386-common.c
(OPTION_MASK_ISA_MOVDIRI_SET, OPTION_MASK_ISA_MOVDIR64B_SET,
OPTION_MASK_ISA_MOVDIRI_UNSET,
OPTION_MASK_ISA_MOVDIR64B_UNSET): New defines.
(ix86_handle_option): Handle -mmovdiri and -mmovdir64b.
* config.gcc (movdirintrin.h): New header.
* config/i386/cpuid.h (bit_MOVDIRI,
bit_MOVDIR64B): New bits.
* config/i386/driver-i386.c (host_detect_local_cpu): Detect -mmovdiri
and -mmvodir64b.
* config/i386/i386-builtin-types.def ((VOID, PUNSIGNED, UNSIGNED),
(VOID, PVOID, PCVOID)): New function types.
* config/i386/i386-builtin.def (__builtin_ia32_directstoreu_u32,
__builtin_ia32_directstoreu_u64,
__builtin_ia32_movdir64b): New builtins.
* config/i386/i386-c.c (__MOVDIRI__, __MOVDIR64B__): New.
* config/i386/i386.c (ix86_target_string): Added -mmovdir64b
and -mmovdiri.
(ix86_valid_target_attribute_inner_p): Ditto.
(ix86_expand_special_args_builtin): Added VOID_FTYPE_PUNSIGNED_UNSIGNED
and VOID_FTYPE_PUNSIGNED_UNSIGNED.
(ix86_expand_builtin): Expand IX86_BUILTIN_MOVDIR64B.
* config/i386/i386.h (TARGET_MOVDIRI, TARGET_MOVDIRI_P,
TARGET_MOVDIR64B, TARGET_MOVDIR64B_P): New.
* config/i386/i386.md (UNSPECV_MOVDIRI, UNSPECV_MOVDIR64B): New.
(movdiri<mode>, movdir64b_<mode>): New.
* config/i386/i386.opt: Add -mmovdiri and -mmovdir64b.
* config/i386/immintrin.h: Include movdirintrin.h.
* config/i386/movdirintrin.h: New file.
* doc/invoke.texi: Added -mmovdiri and -mmovdir64b.

gcc/testsuite/

* gcc.target/i386/movdir-1.c: New test.

From-SVN: r259495

re PR rtl-optimization/85455 (ICE in verify_loop_structure, at cfgloop.c:1708 (error: basic block 3 should be marked irreducible))

2018-04-19  Richard Biener  <rguenther@suse.de>

PR middle-end/85455
* cfg.c (clear_bb_flags): When loop state says we have
marked irreducible regions also preserve BB_IRREDUCIBLE_LOOP.

* gcc.dg/pr85455.c: New testcase.

From-SVN: r259494

re PR tree-optimization/84737 (20% degradation in CPU2000 172.mgrid starting with r256888)

2018-04-19  Richard Biener  <rguenther@suse.de>

PR tree-optimization/84737
* tree-vect-data-refs.c (vect_copy_ref_info): New function
copying restrict info.
(vect_setup_realignment): Use it.
* tree-vectorizer.h (vect_copy_ref_info): Declare.
* tree-vect-stmts.c (vectorizable_store): Copy ref info from
the first DR to all generated stores.
(vectorizable_load): Likewise for loads.

From-SVN: r259493

[testsuite] Fix tests for pr84805 and pr85405.

2018-04-19  Christophe Lyon  <christophe.lyon@linaro.org>

* g++.dg/lto/pr85405_0.C: Require shared and fpic effective
targets.
* g++.dg/lto/pr85405b_0.C: Likewise.
* g++.dg/lto/pr84805_0.C: Likewise.

From-SVN: r259492

PR85463 '[nvptx] "exit" in offloaded region doesn't terminate process'

libgomp/
PR libfortran/85166
* testsuite/libgomp.oacc-fortran/abort-1.f90: Switch back to "call
abort".
* testsuite/libgomp.oacc-fortran/abort-2.f90: Likewise.

libgfortran/
PR libfortran/85166
PR libgomp/85463
* runtime/minimal.c (stop_numeric): Reimplement.
(stop_string, error_stop_string, error_stop_numeric): New
functions.
libgomp/
PR libgomp/85463
* testsuite/libgomp.oacc-fortran/error_stop-1.f: New file.
* testsuite/libgomp.oacc-fortran/error_stop-2.f: Likewise.
* testsuite/libgomp.oacc-fortran/error_stop-3.f: Likewise.
* testsuite/libgomp.oacc-fortran/stop-1.f: Likewise.
* testsuite/libgomp.oacc-fortran/stop-2.f: Likewise.
* testsuite/libgomp.oacc-fortran/stop-3.f: Likewise.

From-SVN: r259491

Do not bail out for multiple PREVAILING_DEF_IRONLY for common symbols.

2018-04-19  Martin Liska  <mliska@suse.cz>

* lto-symtab.c (lto_symtab_resolve_symbols): Do not bail out
for multiple PREVAILING_DEF_IRONLY for common symbols.

From-SVN: r259490

re PR tree-optimization/85446 (wrong-code on riscv64)

PR tree-optimization/85446
* match.pd ((intptr_t) x eq/ne CST to x eq/ne (typeof x) cst): Require
the integral and pointer types to have the same precision.

From-SVN: r259488

cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace --enable-cet=default with --enable-cet=auto.

* config/cet.m4 (GCC_CET_FLAGS): Default to --disable-cet, replace
--enable-cet=default with --enable-cet=auto.

* doc/install.texi: Document --disable-cet being the default and
--enable-cet=auto.

* configure: Regenerated.

From-SVN: r259487

re PR c++/80290 (g++ uses unreasonable amount of memory compiling nested string maps)

PR c++/80290
* cp-tree.h (tinst_level::free): Fix whitespace.

From-SVN: r259486

Daily bump.

From-SVN: r259483

Fix coding style and typos.

2018-04-18  Martin Liska  <mliska@suse.cz>

* ipa-devirt.c (odr_subtypes_equivalent_p): Fix GNU coding
style.
2018-04-18  Martin Liska  <mliska@suse.cz>

* lto.c (lto_read_decls): Fix GNU coding style and typos.

From-SVN: r259480

Make Wodr warnings stable.

2018-04-18  Martin Liska  <mliska@suse.cz>

PR ipa/83983
PR ipa/85391
* lto.c (cmp_type_location): New function.
(lto_read_decls): First collect all types, then
sort them according by location before register_odr_type
is called.
2018-04-18  Martin Liska  <mliska@suse.cz>

PR ipa/83983
PR ipa/85391
* g++.dg/lto/pr83121_1.C (struct Environment): Adjust expected
output.

From-SVN: r259479

Revert r258133.

2018-04-18  Martin Liska  <mliska@suse.cz>

Revert
2018-03-02  Eric Botcazou  <ebotcazou@adacore.com>

PR ipa/83983
* ipa-devirt.c (odr_subtypes_equivalent_p): Get the ODR type of both
arguments if they are comparable.

From-SVN: r259478

Revert r25841.

2018-04-18  Martin Liska  <mliska@suse.cz>

Revert
2018-03-13  Eric Botcazou  <ebotcazou@adacore.com>

PR lto/84805
* ipa-devirt.c (odr_subtypes_equivalent_p): Do not get the ODR type of
incomplete types.

From-SVN: r259477

i386: Insert ENDBR after __morestack call

Since __morestack will jump back to its callee via indirect call, we
need to insert ENDBR after calling __morestack.

gcc/

PR target/85388
* config/i386/i386.c (ix86_expand_split_stack_prologue): Insert
ENDBR after calling __morestack.

gcc/testsuite/

PR target/85388
* gcc.dg/pr85388-1.c: New test.
* gcc.dg/pr85388-2.c: Likewise.
* gcc.dg/pr85388-3.c: Likewise.
* gcc.dg/pr85388-4.c: Likewise.
* gcc.dg/pr85388-5.c: Likewise.
* gcc.dg/pr85388-6.c: Likewise.

From-SVN: r259475

PR libstdc++/85442 fix duplicate debuginfo for cxx11-ios_failure.cc

2018-04-18  Jonathan Wakely  <jwakely@redhat.com>
    Jakub Jelinek  <jakub@redhat.com>

PR libstdc++/85442
* src/c++11/Makefile.am: Don't generate debuginfo again for
cxx11-ios_failure-lt.s and cxx11-ios_failure.s files.
* src/c++11/Makefile.in: Regenerate.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r259467

re PR lto/85391 (ICE in add_type_duplicate, at ipa-devirt.c:1887)

PR lto/85391
* lto.c (lto_read_decls): Do not test TYPE_CANONICAL before registering odr
types.
* g++.dg/lto/pr83121_0.C: Update template.
* g++.dg/lto/pr83121_1.C: Update template.
* g++.dg/lto/pr84805_0.C: Update template.
* g++.dg/lto/pr84805_1.C: Update template.
* g++.dg/lto/pr84805_2.C: Update template.

Co-Authored-By: Martin Liska <mliska@suse.cz>
From-SVN: r259464

PR libstdc++/84442 if _Exit isn't declared then use _exit instead

PR libstdc++/84442
* testsuite/30_threads/thread/cons/terminate.cc
[!_GLIBCXX_USE_C99_STDLIB] : Use _exit or std::exit instead of _Exit.

From-SVN: r259463

re PR jit/85384 (libgccjit does not work if --with-gcc-major-version is used)

PR jit/85384
* acx.m4 (GCC_BASE_VER): Remove \$\$ from sed expression.

* configure.ac (gcc-driver-name.h): Honor --with-gcc-major-version
by using gcc_base_ver to generate a gcc_driver_version, and use
it when generating GCC_DRIVER_NAME.
* configure: Regenerate.

* configure: Regenerate.

From-SVN: r259462

re PR target/81084 (powerpcspe port full of confusing configury / command-line options not related to SPE)

PR target/81084
* config.gcc: Obsolete powerpc*-*-*spe*.

From-SVN: r259461

re PR c++/84630 (ICE: TYPE_NAME() used on error_mark_node in tsubst_lambda_expr, at cp/pt.c:17141)

/cp
2018-04-18  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/84630
* pt.c (tsubst_lambda_expr): Check begin_lambda_type return value
for error_mark_node.

/testsuite
2018-04-18  Paolo Carlini  <paolo.carlini@oracle.com>

PR c++/84630
* g++.dg/cpp0x/pr84630.C: New.

From-SVN: r259460

re PR sanitizer/85389 (posix_memalign() crash with address sanitizer when passing invalid arguments)

PR sanitizer/85389
* asan/asan_allocator.h (kAllocatorSpace): For __powerpc64__ change
from 0xa0000000000ULL to ~(uptr)0.

From-SVN: r259459

re PR c++/84463 (Supposedly-incompliant "error: '* key0' is not a constant expression")

PR c++/84463
* typeck.c (cp_build_addr_expr_1): Move handling of offsetof-like
tricks from here to ...
* cp-gimplify.c (cp_fold) <case ADDR_EXPR>: ... here.  Only use it
if INDIRECT_REF's operand is INTEGER_CST cast to pointer type.

* g++.dg/cpp0x/constexpr-nullptr-1.C: Add -O1 to dg-options.
* g++.dg/cpp0x/constexpr-nullptr-2.C: Expect different diagnostics
in two cases.  Uncomment two other tests and add expected dg-error for
them.
* g++.dg/init/struct2.C: Cast to int rather than long to avoid
-Wnarrowing diagnostics on some targets for c++11.
* g++.dg/parse/array-size2.C: Remove xfail.
* g++.dg/cpp0x/constexpr-84463.C: New test.

From-SVN: r259458

[PR c++/80290] recycle tinst garbage sooner

tinst_level objects are created during template instantiation, and
they're most often quite short-lived, but since there's no intervening
garbage collection, they accumulate throughout the pass while most by
far could be recycled after a short while.  The original testcase in
PR80290, for example, creates almost 55 million tinst_level objects,
all but 10 thousand of them without intervening GC, but we don't need
more than 284 of them live at a time.

Furthermore, in many cases, TREE_LIST objects are created to stand for
the decl in tinst_level.  In most cases, those can be recycled as soon
as the tinst_level object is recycled; in some relatively common
cases, they are modified and reused in up to 3 tinst_level objects.
In the same testcase, TREE_LISTs are used in all but 3 thousand of the
tinst_level objects, and we don't need more than 89 tinst_level
objects with TREE_LISTs live at a time.  Furthermore, all but 2
thousand of those are created without intervening GC.

This patch arranges for tinst_level objects to be refcounted (I've
seen as many as 20 live references to a single tinst_level object in
my testing), and for pending_template, tinst_level and TREE_LIST
objects that can be recycled to be added to freelists; that's much
faster than ggc_free()ing them and reallocating them shortly
thereafter.  In fact, the introduction of such freelists is what makes
this entire patch lighter-weight, when it comes to memory use, and
faster.  With refcounting alone, the total memory footprint was still
about the same, and we spent more time.

In order to further reduce memory use, I've arranged for us to create
TREE_LISTs lazily, only at points that really need them (when printing
error messages).  This grows tinst_level by an additional pointer, but
since a TREE_LIST holds a lot more than an extra pointer, and
tinst_levels with TREE_LISTs used to be allocated tens of thousands of
times more often than plain decl ones, we still save memory overall.

I was still not quite happy about growing memory use in cases that
used template classes but not template overload resolution, so I
changed the type of the errors field to unsigned short, from int.
With that change, in_system_header_p and refcount move into the same
word or half-word that used to hold errors, releasing a full word,
bringing tinst_level back to its original size, now without any
padding.

The errors field is only used to test whether we've had any errors
since the expansion of some template, to skip the expansion of further
templates.  If we get 2^16 errors or more, it is probably reasonable
to refrain from expanding further templates, even if we would expand
them before this change.

With these changes, compile time for the original testcase at -O0,
with default checking enabled, is cut down by some 3.7%, total GCable
memory allocation is cut down by almost 20%, and total memory use (as
reported by GNU time as maxresident) is cut down by slightly over 15%.

for  gcc/cp/ChangeLog

PR c++/80290
* cp-tree.h (struct tinst_level): Split decl into tldcl and
targs.  Add private split_list_p, tree_list_p, and not_list_p
inline const predicates; to_list private member function
declaration; free public member function declaration; list_p,
get_node and maybe_get_node accessors, and refcount data
member.  Narrow errors to unsigned short.
* error.c (print_instantiation_full_context): Use new
accessors.
(print_instantiation_partial_context_line): Likewise.  Drop
const from tinst_level-typed parameter.
* mangle.c (mangle_decl_string): Likewise.
* pt.c (freelist): New template class.
(tree_list_freelist_head): New var.
(tree_list_freelist): New fn, along with specializations.
(tinst_level_freelist_head): New var.
(pending_template_freelist_head): Likewise.
(tinst_level_freelist, pending_template_freelist): New fns.
(tinst_level::to_list, tinst_level::free): Define.
(inc_refcount_use, dec_refcount_use): New fns for tinst_level.
(set_refcount_ptr): New template fn.
(add_pending_template): Adjust for refcounting, freelists and
new accessors.
(neglectable_inst_p): Take a NULL d as a non-DECL.
(limit_bad_template_recursion): Use new accessors.
(push_tinst_level): New overload to create the list.
(push_tinst_level_loc): Make it static, split decl into two
args, adjust tests and initialization to cope with split
lists, use freelist, adjust for refcounting.
(push_tinst_level_loc): New wrapper with the old interface.
(pop_tinst_level): Adjust for refcounting.
(record_last_problematic_instantiation): Likewise.
(reopen_tinst_level): Likewise.  Use new accessors.
(instantiate_alias_template): Adjust for split list.
(fn_type_unification): Likewise.
(get_partial_spec_bindings): Likewise.
(instantiate_pending_templates): Use new accessors.  Adjust
for refcount.  Release pending_template to freelist.
(instantiating_current_function_p): Use new accessors.

From-SVN: r259457

undef-bool-2.c: Add -mvsx.

[gcc/testsuite]

2018-04-17  Bill Schmidt  <wschmidt@linux.ibm.com>

* gcc.target/powerpc/undef-bool-2.c: Add -mvsx.
* gcc.target/g++.dg/ext/undef-bool-1.C: Likewise.

From-SVN: r259456

Daily bump.

From-SVN: r259455

os/signal: disable loading of history during test

    Bring in https://golang.org/cl/98616 from gc tip.

    Original CL description:

        This change modifies Go to disable loading of users' shell history for
        TestTerminalSignal tests. TestTerminalSignal, as part of its workload,
        will execute a new interactive bash shell. Bash will attempt to load the
        user's history from the file pointed to by the HISTFILE environment
        variable. For users with large histories that may take up to several
        seconds, pushing the whole test past the 5 second timeout and causing
        it to fail.

    Reviewed-on: https://go-review.googlesource.com/107624

From-SVN: r259452

re PR debug/84637 (gcc/dbxout.c:684:14: runtime error: negation of -9223372036854775808 cannot be represented in type 'long int'; cast to an unsigned type to negate this value to itself)

PR debug/84637
* dbxout.c (dbxout_int): Perform negation in unsigned int type.
(stabstr_D): Change type of unum from unsigned int to
unsigned HOST_WIDE_INT.  Perform negation in unsigned HOST_WIDE_INT
type.

From-SVN: r259451

RISC-V: Fix 32-bit stack pointer alignment problem.

gcc/
PR 84856
* config/riscv/riscv.c (riscv_compute_frame_info): Add calls to
RISCV_STACK_ALIGN when using outgoing_args_size and pretend_args_size.
Set arg_pointer_offset after using pretend_args_size.

From-SVN: r259449

re PR rtl-optimization/85431 (UBSAN: ../../gcc/dse.c:303:15: runtime error: shift exponent 64 is too large for 64-bit type 'long unsigned int')

PR rtl-optimization/85431
* dse.c (record_store): Ignore zero width stores.

From-SVN: r259448

re PR testsuite/85326 (`make check` fails with `--disable-bootstrap` and `--enable-languages=c`)

PR testsuite/85326
* g++.dg/other/pr81422.C: Require effective target tls and c++11.
* g++.dg/other/pr60675.C: Likewise.  Remove -std=c++11 from dg-options.
* g++.dg/other/sve_tls_2.C: Require effective target tls.

From-SVN: r259447

re PR sanitizer/85230 (asan: false positives in kernel on allocas)

PR sanitizer/85230
* asan.c (handle_builtin_stack_restore): Adjust comment.  Emit
__asan_allocas_unpoison call and last_alloca_addr = new_sp before
__builtin_stack_restore rather than after it.
* builtins.c (expand_asan_emit_allocas_unpoison): Pass
arg1 + (virtual_dynamic_stack_rtx - stack_pointer_rtx) as second
argument instead of virtual_dynamic_stack_rtx.

From-SVN: r259446

gccgo: suppress "ar rcD" and "-zdefs" on AIX

    Reviewed-on: https://go-review.googlesource.com/100955

From-SVN: r259445

Update gcc .po files.

* be.po, da.po, de.po, el.po, es.po, fi.po, fr.po, hr.po, id.po,
ja.po, nl.po, ru.po, sr.po, sv.po, tr.po, uk.po, vi.po, zh_CN.po,
zh_TW.po: Update.

From-SVN: r259443

rs6000-protos.h (rs6000_builtin_is_supported_p): New prototype.

gcc/ChangeLog:

2018-04-13  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* config/rs6000/rs6000-protos.h (rs6000_builtin_is_supported_p):
New prototype.
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
Add note to error message to explain internal mapping of overloaded
built-in function name to non-overloaded built-in function name.
* config/rs6000/rs6000.c (rs6000_builtin_is_supported_p): New
function.

gcc/testsuite/ChangeLog:

2018-04-13  Kelvin Nilsen  <kelvin@gcc.gnu.org>

* gcc.target/powerpc/bfp/scalar-extract-sig-5.c: Simplify to
prevent cascading of errors and change expected error message.
* gcc.target/powerpc/bfp/scalar-test-neg-4.c: Restrict this test
to 64-bit targets.
* gcc.target/powerpc/bfp/scalar-test-data-class-8.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-data-class-9.c: Likewise.
* gcc.target/powerpc/bfp/scalar-test-data-class-10.c: Likewise.
* gcc.target/powerpc/bfp/scalar-insert-exp-11.c: Change expected
error message.
* gcc.target/powerpc/bfp/scalar-extract-exp-5.c: Likewise.

From-SVN: r259442

re PR target/85424 (The __builtin_packlongdouble function might have issues with the output overlapping the inputs)

2018-04-17  Michael Meissner  <meissner@linux.vnet.ibm.com>

PR target/85424
* config/rs6000/rs6000.md (pack<mode>): Do not try handle a pack
where the inputs overlap with the output.

From-SVN: r259441

backtrace.c: Revert last two changes.

* backtrace.c: Revert last two changes.  Don't call mmap
directly.

From-SVN: r259440

backtrace.c: Include backtrace-supported.h before checking BACKTRACE_USES_MALLOC.

* backtrace.c: Include backtrace-supported.h before checking
BACKTRACE_USES_MALLOC.

From-SVN: r259439

sse.md (vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and explicit "memory" attribute.

* config/i386/sse.md (vec_extract_lo_<mode><mask_name>): Add
(=v, v) alternative and explicit "memory" attribute.
(vec_extract_lo_<mode><mask_name>): Likewise.  Also add
"type", "prefix", "prefix_extra", "length_immediate" and "mode"
attributes.
(vec_extract_lo_<mode><mask_name>): Add (=v, v) alternative and use
"sselog1" type instead of "sselog".
(vec_extract_hi_<mode><mask_name>): Use "sselog1" type instead of
"sselog".  Remove explicit "memory" attribute.
(vec_extract_lo_v32hi): Add (=v, v) alternative and explicit "memory",
"type", "prefix", "prefix_extra", "length_immediate" and "mode"
attributes.
(vec_extract_hi_v32hi): Merge all alternatives into one, use
"sselog1" type instead of "sselog".  Remove explicit "memory"
attribute.
(vec_extract_hi_v16hi): Merge each pair of alternatives into one,
use "sselog1" type instead of "sselog".  Remove explicit "memory"
attribute.
(vec_extract_lo_v64qi): Add (=v, v) alternative and explicit "memory",
"type", "prefix", "prefix_extra", "length_immediate" and "mode"
attributes.
(vec_extract_hi_v64qi): Merge all alternatives into one, use
"sselog1" type instead of "sselog".  Remove explicit "memory"
attribute.
(vec_extract_hi_v32qi): Merge each pair of alternatives into one,
use "sselog1" type instead of "sselog".  Remove explicit "memory"
attribute.

From-SVN: r259438

re PR testsuite/85326 (`make check` fails with `--disable-bootstrap` and `--enable-languages=c`)

PR testsuite/85326

Commit missing hunk from r259435.

From-SVN: r259437

re PR target/85430 (ICE: SIGSEGV in memory_operand at recog.c:1358/9 with -O2 -fno-tree-ccp -fno-tree-fre)

PR target/85430
* config/i386/i386.md (*ashlqi3_1_slp): Use alu1 type instead of alu.

* gcc.dg/pr85430.c: New test.

From-SVN: r259436

[AArch64/arm] PR testsuite/85326 Avoid C++ tests when C++ compiler not present

PR testsuite/85326
* gcc.target/arm/pr54300.C: Move to...
* g++.dg/other/pr54300.C: ... Here.  Add target directives.
* gcc.target/arm/pr55073.C: Move to...
* g++.dg/other/pr55073.C: ... Here.  Add target directives.
* gcc.target/arm/pr56184.C: Move to...
* g++.dg/other/pr56184.C: ... Here.  Add target directives.
* gcc.target/arm/pr59985.C: Move to...
* g++.dg/other/pr59985.C: ... Here.  Add target directives.
* gcc.target/aarch64/pr60675.C: Move to...
* g++.dg/other/pr60675.C: ... Here.  Add target directives.
* gcc.target/aarch64/pr81422.C: Move to...
* g++.dg/other/pr81422.C: ... Here.  Add target directives.
* gcc.target/aarch64/sve/const_pred_1.C: Move to...
* g++.dg/other/sve_const_pred_1.C: ... Here.  Add target directives.
* gcc.target/aarch64/sve/const_pred_2.C: Move to...
* g++.dg/other/sve_const_pred_2.C: ... Here.  Add target directives.
* gcc.target/aarch64/sve/const_pred_3.C: Move to...
* g++.dg/other/sve_const_pred_3.C: ... Here.  Add target directives.
* gcc.target/aarch64/sve/const_pred_4.C: Move to...
* g++.dg/other/sve_const_pred_4.C: ... Here.  Add target directives.
* gcc.target/aarch64/sve/tls_2.C: Move to...
* g++.dg/other/sve_tls_2.C: ... Here.  Add target directives.
* gcc.target/aarch64/pr81414.C: Rename to...
* gcc.target/aarch64/pr81414.c: ... This.
* gcc.target/aarch64/simd/pr67896.C: Rename to...
* gcc.target/aarch64/simd/pr67896.c: ... This.  Update error expected
messages.
* gcc.target/aarch64/sve/vcond_1.C: Rename to...
* gcc.target/aarch64/sve/vcond_1.c: ... This.  Avoid use of stdint.h.
* gcc.target/aarch64/sve/vcond_1_run.C: Rename to...
* gcc.target/aarch64/sve/vcond_1_run.c: ... This.  Update include
file name.

From-SVN: r259435

backtrace.c (backtrace_full): When testing whether we can allocate memory...

* backtrace.c (backtrace_full): When testing whether we can
allocate memory, call mmap directly, and munmap the memory.

Fixes https://github.com/ianlancetaylor/libbacktrace/issues/13 .

From-SVN: r259434

re PR middle-end/85414 (ICE: in ix86_expand_prologue, at config/i386/i386.c:13810 with -Og -fgcse)

PR middle-end/85414
* rtlhooks.c (gen_lowpart_if_possible): Don't call gen_lowpart_SUBREG
on a SUBREG.

* gcc.dg/pr85414.c: New test.

From-SVN: r259433

Call expand_all_artificial_thunks in ipa-cp if necessary

2018-04-17  Martin Jambor  <mjambor@suse.cz>

PR ipa/85421
* ipa-cp.c (create_specialized_node): Call
expand_all_artificial_thunks if necessary.

testsuite/
* g++.dg/ipa/pr85421.C: New test.

From-SVN: r259432

Fix coding style and add a new test-case (PR lto/85405).

2018-04-17  Martin Liska  <mliska@suse.cz>

PR lto/85405
* ipa-devirt.c (odr_types_equivalent_p): Remove trailing
in message, remote space in between '_G' and '('.
2018-04-17  Martin Liska  <mliska@suse.cz>

PR lto/85405
* g++.dg/lto/pr85405b_0.C: New test.
* g++.dg/lto/pr85405b_1.C: New test.

From-SVN: r259431

re PR target/85281 (Assembler messages: Error: operand size mismatch for `vpbroadcastb' with -mavx512bw -masm=intel)

PR target/85281
* config/i386/sse.md (reduces<mode><mask_scalar_name>,
avx512f_vmcmp<mode>3<round_saeonly_name>,
avx512f_vmcmp<mode>3_mask<round_saeonly_name>,
avx512f_sgetexp<mode><mask_scalar_name><round_saeonly_scalar_name>,
avx512f_rndscale<mode><round_saeonly_name>,
avx512dq_ranges<mode><mask_scalar_name><round_saeonly_scalar_name>,
avx512f_vgetmant<mode><mask_scalar_name><round_saeonly_scalar_name>):
Use %<iptr>2 instead of %2 for -masm=intel.
(avx512f_vcvtss2usi<round_name>, avx512f_vcvtss2usiq<round_name>,
avx512f_vcvttss2usi<round_saeonly_name>,
avx512f_vcvttss2usiq<round_saeonly_name>): Use %k1 instead of %1 for
-masm=intel.
(avx512f_vcvtsd2usi<round_name>, avx512f_vcvtsd2usiq<round_name>,
avx512f_vcvttsd2usi<round_saeonly_name>,
avx512f_vcvttsd2usiq<round_saeonly_name>, ufloatv2siv2df2<mask_name>):
Use %q1 instead of %1 for -masm=intel.
(avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
avx512f_sfixupimm<mode>_mask<round_saeonly_name>): Use %<iptr>3 instead
of %3 for -masm=intel.
(sse2_shufpd_v2df_mask): Fix a typo, change %{6%} to %{%6%} for
-masm=intel.
(*avx512vl_<code>v2div2qi2_store): Use %w0 instead of %0 for
-masm=intel.
(*avx512vl_<code><mode>v4qi2_store): Use %k0 instead of %0 for
-masm=intel.
(avx512vl_<code><mode>v4qi2_mask_store): Use a single pattern with
%k0 and %1 for -masm=intel rather than two patterns, one with %0 and
%g1.
(*avx512vl_<code><mode>v8qi2_store): Use %q0 instead of %0 for
-masm=intel.
(avx512vl_<code><mode>v8qi2_mask_store): Use a single pattern with
%q0 and %1 for -masm=intel rather than two patterns, one with %0 and
%g1 and one with %0 and %1.
(avx512er_vmrcp28<mode><round_saeonly_name>,
avx512er_vmrsqrt28<mode><round_saeonly_name>): Use %<iptr>1 instead of
%1 for -masm=intel.
(avx5124fmaddps_4fmaddps_mask, avx5124fmaddps_4fmaddss_mask,
avx5124fmaddps_4fnmaddps_mask, avx5124fmaddps_4fnmaddss_mask,
avx5124vnniw_vp4dpwssd_mask, avx5124vnniw_vp4dpwssds_mask): Swap order
of %0 and %{%4%} for -masm=intel.
(avx5124fmaddps_4fmaddps_maskz, avx5124fmaddps_4fmaddss_maskz,
avx5124fmaddps_4fnmaddps_maskz, avx5124fmaddps_4fnmaddss_maskz,
avx5124vnniw_vp4dpwssd_maskz, avx5124vnniw_vp4dpwssds_maskz): Swap
order of %0 and %{%5%}%{z%} for -masm=intel.

From-SVN: r259430

Support bitfields in Wodr machinery (PR lto/85405).

2018-04-17  Jan Hubicka  <jh@suse.cz>

PR lto/85405
* ipa-devirt.c (odr_types_equivalent_p): Handle bit fields.
2018-04-17  Martin Liska  <mliska@suse.cz>

PR lto/85405
* g++.dg/lto/pr85405_0.C: New test.
* g++.dg/lto/pr85405_1.C: New test.

From-SVN: r259429

Make redirection only for target_clones: V3 (PR ipa/85329).

2018-04-17  Martin Liska  <mliska@suse.cz>

PR ipa/85329
* multiple_target.c (create_dispatcher_calls): Set apostrophes
for target_clone error message.  Make default implementation
        clone to be a local declaration.
(separate_attrs): Add new argument and check for an empty
string.
(expand_target_clones): Handle it.
(ipa_target_clone): Make redirection just for target_clones
functions.
2018-04-17  Martin Liska  <mliska@suse.cz>

PR ipa/85329
* g++.dg/ext/pr85329-2.C: New test.
* g++.dg/ext/pr85329.C: New test.
* gcc.target/i386/mvc12.c: New test.

From-SVN: r259428

Daily bump.

From-SVN: r259426

[PR c++/85039] no type definitions in builtin offsetof

Types defined within a __builtin_offsetof argument don't always get
properly recorded as members of their context types, so if they're
anonymous, we may fail to assign them an anon type index for mangling
and ICE.

We shouldn't allow types to be introduced in __builtin_offsetof, I
think, and Jason says the std committee agrees, so I've arranged for
us to reject them.

Even then, we still parse the definitions and attempt to assign
mangled names to its member functions, so the ICE remains.  Since
we've already reported an error, we might as well complete the name
assignment with an arbitrary index, thus avoiding the ICE.

We used to have a test that expected to be able to define types in
__builtin_offsetof; this patch removes that specific test.

for  gcc/cp/ChangeLog

PR c++/85039
* parser.c (cp_parser_builtin_offset): Reject type definitions.
* mangle.c (nested_anon_class_index): Avoid crash returning -1
if we've seen errors.

for  gcc/testsuite/ChangeLog

PR c++/85039
* g++.dg/pr85039-1.C: New.
* g++.dg/pr85039-2.C: New.
* g++.dg/parse/semicolon3.C: Remove test_offsetof.

From-SVN: r259423

re PR target/85080 (gcc.dg/vect/costmodel/ppc/costmodel-pr37194.c fails starting with r248678)

[gcc/testsuite]

2018-04-16  Bill Schmidt  <wschmidt@linux.ibm.com>

PR target/85080
* gcc.dg/vect/costmodel/ppc/costmodel-pr37194.c: Skip dump checks
if the target supports efficient unaligned storage accesses.

From-SVN: r259407

[openacc] Fix ICE when compiling tile loop containing infinite loop

2018-04-16  Cesar Philippidis  <cesar@codesourcery.com>
    Tom de Vries  <tom@codesourcery.com>

PR middle-end/84955
* omp-expand.c (expand_oacc_for): Add dummy false branch for
tiled basic blocks without omp continue statements.

* testsuite/libgomp.oacc-c-c++-common/pr84955.c: New test.
* testsuite/libgomp.oacc-fortran/pr84955.f90: New test.

Co-Authored-By: Tom de Vries <tom@codesourcery.com>
From-SVN: r259406

re PR target/83660 (ICE with vec_extract inside expression statement)

2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>

PR target/83660
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): Mark
vec_extract expression as having side effects to make sure it gets
a cleanup point.

2018-04-16  Aaron Sawdey  <acsawdey@linux.ibm.com>

PR target/83660
* gcc.target/powerpc/pr83660.C: New test.

From-SVN: r259403

i386: Check error_mark_node in multiversioning

Since CET is applied to the whole program, it is correct to disallow
-fcf-protection=full without -mcet.  But compiler shouldn't crash.

gcc/

PR target/85403
* config/i386/i386.c (get_builtin_code_for_version): Check
error_mark_node.

gcc/testsuite/

PR target/85403
* gcc.target/i386/pr85403.c: New test.
---
 gcc/config/i386/i386.c                            |  2 ++
 gcc/testsuite/g++.dg/ext/mv1.C                    |  2 +-
 gcc/testsuite/g++.dg/ext/mv14.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv15.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv16.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv17.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv18.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv19.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv20.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv21.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv22.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv23.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv26.C                   |  1 +
 gcc/testsuite/g++.dg/ext/mv6.C                    |  2 +-
 gcc/testsuite/g++.dg/ext/mvc1.C                   |  1 +
 gcc/testsuite/gcc.target/i386/cet-notrack-icf-1.c |  2 +-
 gcc/testsuite/gcc.target/i386/cet-notrack-icf-3.c |  2 +-
 gcc/testsuite/gcc.target/i386/cet-property-2.c    |  2 +-
 gcc/testsuite/gcc.target/i386/mvc1.c              |  1 +
 gcc/testsuite/gcc.target/i386/mvc10.c             |  1 +
 gcc/testsuite/gcc.target/i386/mvc11.c             |  2 +-
 gcc/testsuite/gcc.target/i386/mvc6.c              |  2 +-
 gcc/testsuite/gcc.target/i386/mvc7.c              |  1 +
 gcc/testsuite/gcc.target/i386/mvc8.c              |  2 +-
 gcc/testsuite/gcc.target/i386/mvc9.c              |  2 +-
 gcc/testsuite/gcc.target/i386/pr81213.c           |  1 +
 gcc/testsuite/gcc.target/i386/pr81214.c           |  1 +
 gcc/testsuite/gcc.target/i386/pr85403.c           | 10 ++++++++++
 gcc/testsuite/gcc.target/i386/sse-26.c            |  2 +-
 29 files changed, 39 insertions(+), 20 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr85403.c

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 6fa5b0add02..8a73fc0d316 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -32344,6 +32344,8 @@ get_builtin_code_for_version (tree decl, tree *predicate_list)
        &global_options_set);

       gcc_assert (target_node);
+      if (target_node == error_mark_node)
+ return 0;
       new_target = TREE_TARGET_OPTION (target_node);
       gcc_assert (new_target);

diff --git a/gcc/testsuite/gcc.target/i386/pr85403.c b/gcc/testsuite/gcc.target/i386/pr85403.c
new file mode 100644
index 00000000000..f4fb12dd4e2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr85403.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-fcf-protection -mcet" } */
+/* { dg-require-ifunc "" } */
+
+__attribute__((target_clones("avx","arch=slm","arch=core-avx2","default")))
+int
+foo ()
+{
+  return -2;
+} /* { dg-error "requires Intel CET support" } */

From-SVN: r259400

Fixed g++.dg/ext/mv16.C with -march=native.

gcc/
PR target/84331
* gcc/config.gcc: Support "skylake".
* gcc/config/i386/i386-c.c (ix86_target_macros_internal): Handle
PROCESSOR_SKYLAKE.
* gcc/config/i386/i386.c (m_SKYLAKE): Define.
(processor_target_table): Add "skylake".
(ix86_option_override_internal): Add "skylake".
(get_builtin_code_for_version): Handle PROCESSOR_SKYLAKE,
PROCESSOR_CANNONLAKE.
(get_builtin_code_for_version): Fix priority for
PROCESSOR_ICELAKE_CLIENT, PROCESSOR_ICELAKE_SERVER,
PROCESSOR_SKYLAKE-AVX512.
* gcc/config/i386/i386.h (processor_costs): Define TARGET_SKYLAKE.
(processor_type): Add PROCESSOR_SKYLAKE.

gcc/testsuite/
PR target/84331
* gcc/testsuite/gcc.target/i386/funcspec-56.inc: Test arch=skylake.

From-SVN: r259399

re PR target/84945 (UBSAN: gcc/config/i386/i386.c:33312:22: runtime error: shift exponent 32 is too large for 32-bit type 'int')

PR target/84945
* config/i386/cpuinfo.c (set_feature): Wrap into do while (0) to avoid
-Wdangling-else warnings.  Mask shift counts to avoid
-Wshift-count-negative and -Wshift-count-overflow false positives.

From-SVN: r259398

re PR c++/85112 (ICE with invalid constexpr)

2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
    Jason Merrill  <jason@redhat.com>

PR c++/85112
* convert.c (convert_to_integer_1): Use direct recursion for
enumeral types and types with a precision less than the number
of bits in their mode.

/testsuite
2018-04-16  Paolo Carlini  <paolo.carlini@oracle.com>
    Jason Merrill  <jason@redhat.com>

PR c++/85112
* g++.dg/cpp0x/pr85112.C: New.

Co-Authored-By: Jason Merrill <jason@redhat.com>
From-SVN: r259397

Make Filesystem TS tests pass in C++17 mode

The <testsuite_fs.h> header defaults to using std::filesystem in C++17
mode. The Filesystem TS tests need to define the macro that causes
std::experimental::filesystem to be used instead.

* testsuite/experimental/filesystem/file_status/1.cc: Add
-DUSE_FILESYSTEM_TS to dg-options.
* testsuite/experimental/filesystem/iterators/directory_iterator.cc:
Likewise.
* testsuite/experimental/filesystem/iterators/pop.cc: Likewise.
* testsuite/experimental/filesystem/iterators/
recursive_directory_iterator.cc: Likewise.
* testsuite/experimental/filesystem/operations/absolute.cc: Likewise.
* testsuite/experimental/filesystem/operations/canonical.cc: Likewise.
* testsuite/experimental/filesystem/operations/copy.cc: Likewise.
* testsuite/experimental/filesystem/operations/copy_file.cc: Likewise.
* testsuite/experimental/filesystem/operations/create_directories.cc:
Likewise.
* testsuite/experimental/filesystem/operations/create_directory.cc:
Likewise.
* testsuite/experimental/filesystem/operations/create_symlink.cc:
Likewise.
* testsuite/experimental/filesystem/operations/current_path.cc:
Likewise.
* testsuite/experimental/filesystem/operations/equivalent.cc: Likewise.
* testsuite/experimental/filesystem/operations/exists.cc: Likewise.
* testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
* testsuite/experimental/filesystem/operations/is_empty.cc: Likewise.
* testsuite/experimental/filesystem/operations/last_write_time.cc:
Likewise.
* testsuite/experimental/filesystem/operations/permissions.cc:
Likewise.
* testsuite/experimental/filesystem/operations/read_symlink.cc:
Likewise.
* testsuite/experimental/filesystem/operations/remove.cc: Likewise.
* testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
* testsuite/experimental/filesystem/operations/status.cc: Likewise.
* testsuite/experimental/filesystem/operations/temp_directory_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/append/path.cc: Likewise.
* testsuite/experimental/filesystem/path/assign/assign.cc: Likewise.
* testsuite/experimental/filesystem/path/assign/copy.cc: Likewise.
* testsuite/experimental/filesystem/path/compare/compare.cc: Likewise.
* testsuite/experimental/filesystem/path/compare/path.cc: Likewise.
* testsuite/experimental/filesystem/path/compare/strings.cc: Likewise.
* testsuite/experimental/filesystem/path/concat/path.cc: Likewise.
* testsuite/experimental/filesystem/path/concat/strings.cc: Likewise.
* testsuite/experimental/filesystem/path/construct/copy.cc: Likewise.
* testsuite/experimental/filesystem/path/construct/default.cc:
Likewise.
* testsuite/experimental/filesystem/path/construct/locale.cc: Likewise.
* testsuite/experimental/filesystem/path/construct/range.cc: Likewise.
* testsuite/experimental/filesystem/path/construct/string_view.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/extension.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/filename.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/parent_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/relative_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/root_directory.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/root_name.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/root_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/decompose/stem.cc: Likewise.
* testsuite/experimental/filesystem/path/generic/generic_string.cc:
Likewise.
* testsuite/experimental/filesystem/path/itr/traversal.cc: Likewise.
* testsuite/experimental/filesystem/path/modifiers/clear.cc: Likewise.
* testsuite/experimental/filesystem/path/modifiers/make_preferred.cc:
Likewise.
* testsuite/experimental/filesystem/path/modifiers/remove_filename.cc:
Likewise.
* testsuite/experimental/filesystem/path/modifiers/replace_extension.cc:
Likewise.
* testsuite/experimental/filesystem/path/modifiers/replace_filename.cc:
Likewise.
* testsuite/experimental/filesystem/path/modifiers/swap.cc: Likewise.
* testsuite/experimental/filesystem/path/native/string.cc: Likewise.
* testsuite/experimental/filesystem/path/nonmember/hash_value.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/empty.cc: Likewise.
* testsuite/experimental/filesystem/path/query/has_extension.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_filename.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_parent_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_relative_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_root_directory.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_root_name.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_root_path.cc:
Likewise.
* testsuite/experimental/filesystem/path/query/has_stem.cc: Likewise.
* testsuite/experimental/filesystem/path/query/is_relative.cc:
Likewise.

From-SVN: r259396

Add sse_unaligned_load_optimal and sse_unaligned_store_optimal to Skylake.

gcc/
PR target/84413
* config/i386/x86-tune.def (X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL,
X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL): Add m_SKYLAKE_AVX512

From-SVN: r259395

re PR testsuite/85326 (`make check` fails with `--disable-bootstrap` and `--enable-languages=c`)

[gcc/testsuite]

2018-04-15  Bill Schmidt  <wschmidt@linux.ibm.com>

PR testsuite/85326
* g++.dg/ext/undef-bool-1.C: New file.
* gcc.target/powerpc/powerpc.exp: Remove .C support.
* gcc.target/powerpc/undef-bool-1.C: Remove file.

From-SVN: r259393

Daily bump.

From-SVN: r259392

Daily bump.

From-SVN: r259389

rs6000: Disable -m[no-]direct-move (PR85293)

The -mno-direct-move option causes a lot of problems, since it forces
us to be able to generate code for p8 and up with some crucial
instructions missing.  This patch removes the -m[no-]direct-move
options so that the user cannot put us into this unexpected situation
anymore.  Internally we still have all the same flags, and they are
automatically set based on -mcpu; getting rid of that is a lot more
work and will have to wait for GCC 9 (in some places the flag is used
to see if we are compiling for a p8 _at all_).

PR target/85293
* config/rs6000/rs6000.opt (mdirect-move): Make deprecated.
* doc/invoke.texi (RS/6000 and PowerPC Options): Remove -mdirect-move
and -mno-direct-move.

gcc/testsuite/
PR target/85293
* gcc.target/powerpc/pr80098-2.c: Remove -mdirect-move.  Remove the
corresponding dg-error clause.
* gcc.target/powerpc/pr80098-3.c: Ditto.
* gcc.target/powerpc/pr80103-1.c: Delete.

From-SVN: r259386

re PR fortran/81773 ([Coarray] Get with vector index on lhs leads to incorrect caf_get_by_ref() call.)

gcc/fortran/ChangeLog:

2018-04-14  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/81773
PR fortran/83606
* dependency.c (gfc_dep_resolver): Coarray indexes are to be ignored
during dependency computation.  They define no data dependency.
* trans-array.c (conv_array_index_offset): The stride can not be set
here, prevent fail.
* trans-intrinsic.c (conv_caf_send): Add creation of temporary array
for caf_get's result and copying to the array with vectorial
indexing.

gcc/testsuite/ChangeLog:

2018-04-14  Andre Vehreschild  <vehre@gcc.gnu.org>

PR fortran/81773
PR fortran/83606
* gfortran.dg/coarray/get_to_indexed_array_1.f90: New test.
* gfortran.dg/coarray/get_to_indirect_array.f90: New test.

From-SVN: r259385

re PR fortran/85387 (incorrect output with optimization /= 0)

2018-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/85387
* frontend-passes.c (traverse_io_block): Check for start, end or
stride being defined by an outer implied DO loop.

2018-04-14  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/85387
* gfortran.dg/implied_do_io_5.f90: New test.

From-SVN: r259384

Daily bump.

From-SVN: r259383

rs6000: Fix _mm_slli_epi{32,64} for shift values 16 through 31 and negative (PR84302)

The powerpc versions of _mm_slli_epi32 and __mm_slli_epi64 in emmintrin.h
do not properly handle shift values between 16 and 31, inclusive.
These are setting up the shift with vec_splat_s32, which only accepts
*5 bit signed* shift values, or a range of -16 to 15.  Values above 15
produce an error:

  error: argument 1 must be a 5-bit signed literal

Fix is to effectively reduce the range for which vec_splat_s32 is used
to < 32 and use vec_splats otherwise.

Also, __mm_slli_epi{16,32,64}, when given a negative shift value,
should always return a vector of {0}.

PR target/83402
* config/rs6000/emmintrin.h (_mm_slli_epi{16,32,64}):
Ensure that vec_splat_s32 is only called with 0 <= shift < 16.
Ensure negative shifts result in {0}.

gcc/testsuite/
PR target/83402
* gcc.target/powerpc/sse2-psllw-1.c: Refactor and add tests for
several values:  positive, negative, and zero.
* gcc.target/powerpc/sse2-pslld-1.c: Same.
* gcc.target/powerpc/sse2-psllq-1.c: Same.

From-SVN: r259380

re PR rtl-optimization/79916 (ICE in Max. number of generated reload insns per insn is achieved (90))

2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/79916
* config/rs6000/rs6000.c (rs6000_emit_move): Use assigned hard
regs (if any) to define how to gnerate SD moves when LRA is in
progress.

2018-04-13  Vladimir Makarov  <vmakarov@redhat.com>

PR rtl-optimization/79916
* gcc.target/powerpc/pr79916.c: New.

From-SVN: r259379

re PR rtl-optimization/85393 (Miscompilation with hot/cold partitioning starting with r254832)

PR rtl-optimization/85393
* except.h (expand_dw2_landing_pad_for_region): Remove declaration.
* except.c (expand_dw2_landing_pad_for_region): Make static.
* bb-reorder.c (fix_up_crossing_landing_pad): In new_bb emit just
a label and unconditional jump to old_bb, rather than
expand_dw2_landing_pad_for_region insn(s) and jump to single_succ
basic block.

* g++.dg/opt/pr85393.C: New test.
* g++.dg/opt/pr85393-aux.cc: New file.

From-SVN: r259378

re PR rtl-optimization/85376 (wrong code with -Og -fno-dce -fgcse -fno-tree-ccp -fno-tree-copy-prop)

PR rtl-optimization/85376
* simplify-rtx.c (simplify_const_unary_operation): For CLZ and CTZ and
zero op0, if C?Z_DEFINED_VALUE_AT_ZERO is false, return NULL_RTX
instead of a specific value.

* gcc.dg/pr85376.c: New test.

From-SVN: r259377

Fix broken sed command from previous commit

* src/c++11/Makefile.am: Fix sed command.
* src/c++11/Makefile.in: Regenerate.

From-SVN: r259374

re PR rtl-optimization/83852 (ICE in sel_redirect_edge_and_branch, at sel-sched-ir.c:5644 on 32-bit BE powerpc targets)

        PR rtl-optimization/83852
        * gcc.dg/pr83852.c: New testcase.

From-SVN: r259373

Fix __iosfail_type_info hack to work on darwin

* src/c++11/Makefile.am: Rewrite sed rule to be less fragile and to
handle mangled names starting with double underscores on darwin.
* src/c++11/Makefile.in: Regenerate.

From-SVN: r259371

IBM Z: Get rid of target specific C++ testcase

gcc/testsuite/ChangeLog:

2018-04-13  Andreas Krebbel  <krebbel@linux.ibm.com>

        PR testsuite/85326
        * gcc.target/s390/pr77822-1.C: Rename to ...
        * gcc.target/s390/pr77822-1.c: ... this. Add asm scan check.
        * gcc.target/s390/pr77822-2.c: Add asm scan check.
        * gcc.target/s390/s390.exp: Remove C from testcase regexps.

From-SVN: r259369

re PR tree-optimization/82965 (gcc.dg/vect/pr79347.c starts failing after r254379)

PR tree-optimization/82965
PR tree-optimization/83991
* cfgloopanal.c (expected_loop_iterations_unbounded): Add
by_profile_only parameter.
* cfgloopmanip.c (scale_loop_profile): Further scale loop's profile
        information if the loop was predicted to iterate too many times.
* cfgloop.h (expected_loop_iterations_unbounded): Update prototype

Co-Authored-By: Bin Cheng <bin.cheng@arm.com>
From-SVN: r259368

re PR target/71991 (Inconsistency for __attribute__ ((__always_inline__)) among LTO and non-LTO compilation)

PR lto/71991
* config/i386/i386.c (ix86_can_inline_p): Allow safe transitions for
always inline.
* gcc.target/i386/pr71991.c: New testcase.

From-SVN: r259367

re PR middle-end/81657 (FAIL: gcc.dg/20050503-1.c scan-assembler-not call)

PR middle-end/81657
* expr.h (enum block_op_methods): Add BLOCK_OP_NO_LIBCALL_RET.
* expr.c (emit_block_move_hints): Handle BLOCK_OP_NO_LIBCALL_RET.
* builtins.c (expand_builtin_memory_copy_args): Use
BLOCK_OP_NO_LIBCALL_RET method for mempcpy with non-ignored target,
handle dest_addr == pc_rtx.

* gcc.dg/string-opt-1.c: Remove bogus comment.  Expect a mempcpy
call.

Co-Authored-By: Jakub Jelinek <jakub@redhat.com>
From-SVN: r259366

Fix gcc.dg/debug/pr41893-1.c with Solaris ld (PR lto/81968)

PR lto/81968
* simple-object.c (handle_lto_debug_sections): Keep .comment
section.

From-SVN: r259364

Daily bump.

From-SVN: r259363

Prevent erroneous "macro had not yet been defined" messages (PR c++/85385)

PR c++/85385 reports an issue where we emit bogus "macro had not yet been
defined" notes when a macro is mis-used:

  $ cat test.c
  #define MACRO(X,Y)

  void test ()
  {
    MACRO(42);
  }

  $ ./xg++ -B. -c test.c
  test.c:5:11: error: macro "MACRO" requires 2 arguments, but only 1 given
     MACRO(42);
             ^
  test.c: In function ‘void test()’:
  test.c:5:3: error: ‘MACRO’ was not declared in this scope
     MACRO(42);
     ^~~~~
  test.c:5:3: note:
  test.c:1: note: it was later defined here
   #define MACRO(X,Y)

The macro *had* been defined, it was merely misused.

This patch fixes the issue by only issuing the note if the use location
is before the definition location (using linemap_location_before_p).

gcc/cp/ChangeLog:
PR c++/85385
* name-lookup.c (macro_use_before_def::maybe_make): New function,
checking that the use is indeed before the definition.
(macro_use_before_def::macro_use_before_def): Make private.
(macro_use_before_def::~macro_use_before_def): Make private.  Move
check for UNKNOWN_LOCATION to macro_use_before_def::maybe_make.
(lookup_name_fuzzy): Call macro_use_before_def::maybe_make rather
than using new directly.

gcc/testsuite/ChangeLog:
PR c++/85385
* g++.dg/diagnostic/macro-arg-count.C: New test.

From-SVN: r259360

re PR fortran/83064 (DO CONCURRENT and auto-parallelization)

2018-04-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83064
PR testsuite/85346
* trans-stmt.c (gfc_trans_forall_loop): Use annot_expr_ivdep_kind
for annotation and remove dependence on -ftree-parallelize-loops.

2018-04-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83064
PR testsuite/85346
* gfortran.dg/do_concurrent_5.f90: Dynamically allocate main work
array and move test to libgomp/testsuite/libgomp.fortran.
* gfortran.dg/do_concurrent_6.f90: New test.

2018-04-12  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83064
PR testsuite/85346
* testsuite/libgomp.fortran/do_concurrent_5.f90: Move modified
test from gfortran.dg to here.

From-SVN: r259359

Fix comments that misspell names of files and classes

* src/c++11/Makefile.am: Fix comment.
* src/c++11/Makefile.in: Regenerate.
* src/c++11/cxx11-ios_failure.cc: Fix comment.
* src/c++98/ios_failure.cc: Likewise.

From-SVN: r259357

PR c++/85356 - ICE with pointer to member function.

* pt.c (maybe_instantiate_noexcept): Do instantiate in templates if
flag_noexcept_type.  Build the new spec within the function context.
* except.c (build_noexcept_spec): Do get constant value in templates
if flag_noexcept_type.
* decl.c (check_redeclaration_exception_specification): Don't
instantiate noexcept on a dependent declaration.

From-SVN: r259356

re PR c++/85258 (ICE with invalid range-based for-loop)

PR c++/85258
* constexpr.c (reduced_constant_expression_p): Return false for null
trees.

* g++.dg/parse/error61.C: New test.

From-SVN: r259355

rs6000: Fix an ICE with -mno-direct-move (PR85291)

PR target/85291
* config/rs6000/rs6000.md (fix_trunc<mode>si2): Use legacy code if
asked to not generate direct moves.
(fix_trunc<mode>si2_stfiwx): Similar.
(fix_trunc<mode>si2_internal): Similar.

From-SVN: r259354

re PR debug/83157 (gcc.dg/guality/pr41616-1.c fail, inline instances refer to concrete instance as abstract origin)

PR debug/83157
* var-tracking.c (add_stores): Handle STRICT_LOW_PART SET_DEST.
* cselib.c (cselib_record_sets): For STRICT_LOW_PART dest,
lookup if dest in some wider mode is known to be const0_rtx and
if so, record permanent equivalence for it to be ZERO_EXTEND of
the narrower mode destination.

From-SVN: r259353

Revert 259346.

gcc/
* lto-streamer-out.c (output_function): Revert 259346.
* omp-expand.c (expand_oacc_for): Likewise.

libgomp/
* testsuite/libgomp.oacc-c-c++-common/pr84955.c: Revert 259346.
* testsuite/libgomp.oacc-fortran/pr84955.f90:Likewise.

From-SVN: r259351