Steven G. Kargl [Thu, 8 Dec 2016 21:26:11 +0000 (21:26 +0000)]
re PR fortran/65173 (ICE while compiling wrong code)
2016-12-07 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/65173
PR fortran/69064
PR fortran/69859
PR fortran/78350
* gfortran.h (gfc_namespace): Remove old_cl_list member.
* parse.c (use_modules, next_statement): old_cl_list is gone.
(clear_default_charlen): Remove no longer used function.
(reject_statement): Do not try ot clean up gfc_charlen structure(s)
that may have been added to a cl_list list.
* symbol.c (gfc_new_charlen): old_cl_list structure is gone.
Wilco Dijkstra [Thu, 8 Dec 2016 19:18:33 +0000 (19:18 +0000)]
This patch fixes an issue in aarch64_classify_address.
This patch fixes an issue in aarch64_classify_address. TImode and TFmode
can either use a 64-bit LDP/STP or 128-bit LDR/STR. The addressing mode
must be carefully modelled as the intersection of both. This is done for
the immediate offsets, however load_store_pair_p must be set as well to
avoid LDP with a PC-relative address if aarch64_pcrelative_literal_loads
is true.
gcc/
PR target/78733
* config/aarch64/aarch64.c (aarch64_classify_address):
Set load_store_pair_p for TImode and TFmode.
testsuite/
* gcc.target/aarch64/pr78733.c: New test.
Nathan Sidwell [Thu, 8 Dec 2016 18:34:04 +0000 (18:34 +0000)]
re PR c++/78551 (Internal compiler error with constexpr initialization of union)
PR c++/78551
* constexpr.c (extract_string_elt): New. Broken out of ...
(cxx_eval_array_reference): ... here. Call it.
(cxx_eval_store_expression): Convert init by STRING_CST into
CONSTRUCTOR, if needed.
David Malcolm [Thu, 8 Dec 2016 17:29:41 +0000 (17:29 +0000)]
Introduce emit_status::ensure_regno_capacity
gcc/ChangeLog:
* emit-rtl.c (gen_reg_rtx): Move regno_pointer_align and
regno_reg_rtx resizing logic to...
(emit_status::ensure_regno_capacity): ...this new method,
and ensure that the buffers are large enough.
(init_emit): Allocate regno_reg_rtx using ggc_cleared_vec_alloc
rather than ggc_vec_alloc.
* function.h (emit_status::ensure_regno_capacity): New method.
Rewrite the AES hashing code from gc assembler to C code using
intrinsics. The resulting code generates the same hash code for the
same input as the gc code--that doesn't matter as such, but testing it
ensures that the C code does something useful.
Also change mips64pe32le to mips64p32le in configure script--noticed
during CL review.
The gc library allocates a _panic struct on the stack. This does not
work for gccgo, because when a deferred function recovers the panic we
unwind the stack up to that point so that returning from the function
will work correctly.
Allocating on the stack fine if the panic is not recovered, and it
works fine if the panic is recovered by a function that
returns. However, it fails if the panic is recovered by a function
that itself panics, and if that second panic is then recovered by a
function higher up on the stack. When we unwind the stack to that
second panic, the g will wind up pointing at a panic farther down on
the stack. Even then everything will often work fine, except when the
deferred function catching the second panic makes a bunch of calls
that use stack space before returning. In that case the code can
overwrite the panic struct, which will then cause disaster when we
remove the struct from the linked list, as the link field will be
garbage. This case is rare enough that all the x86 tests were passing,
but there was a failure on ppc64le.
Before https://golang.org/cl/33414 we allocated the panic struct on
the heap, so go back to doing that again.
compiler: make Slice_construction_expression::do_flatten idempotent
Because of the way we handle call expressions with multiple results,
it's possible for expressions to be flattened more than once. In the
case of Slice_construction_expression, allocating the slice storage
multiple times caused a compiler crash as one of the
Temporary_statement's wound up not getting a backend expression.
Dmitry Vyukov [Thu, 8 Dec 2016 14:32:24 +0000 (06:32 -0800)]
Enable -fsanitize-address-use-after-scope only if -fsanitize=address is enabled
2016-12-08 Dmitry Vyukov <dvyukov@google.com>
* opts.c (finish_options): Enable
-fsanitize-address-use-after-scope only if -fsanitize=address is enabled
(not -fsanitize=kernel-address).
* doc/invoke.texi (-fsanitize=kernel-address):
Don't say that it enables -fsanitize-address-use-after-scope.
[PR78112] Remove platform-dependent checks in g++.dg/pr78112.C
... as there checks failed on many platforms. As a replacement, this
commit also adds a new testcase from source reduction. The hope is that
this new testcase will get a consistent output across all platforms.
Bin Cheng [Thu, 8 Dec 2016 10:56:41 +0000 (10:56 +0000)]
re PR middle-end/78684 (ICE in create_intersect_range_checks_index, at tree-vect-loop-manip.c:2074)
PR middle-end/78684
* tree-vect-loop-manip.c (create_intersect_range_checks_index): Check
sign bit for index step of data reference.
gcc/testsuite
PR middle-end/78684
* g++.dg/torture/pr78684.C: New test.
Jakub Jelinek [Thu, 8 Dec 2016 08:26:06 +0000 (09:26 +0100)]
P0003R5 - removal of dynamic exception specification from C++17
P0003R5 - removal of dynamic exception specification from C++17
* parser.c (cp_parser_exception_specification_opt): For C++17
error out on throw ( type-id-list ), for C++11 and C++14 issue
-Wdeprecated warning on it. Formatting fix. Treat throw()
in C++17 as noexcept(true).
gcc
* config/aarch64/aarch64.c (aarch64_load_symref_appropriately):
Handle SYMBOL_SMALL_TLSGD for ILP32.
* config/aarch64/aarch64.md : tlsgd_small modified into
tlsgd_small_<mode> to support SImode and DImode.
*tlsgd_small modified into *tlsgd_small_<mode> to support SImode and
DImode.
gcc/testsuite
* gcc.target/aarch64/pr78382.c : New Testcase.
David Malcolm [Thu, 8 Dec 2016 01:51:04 +0000 (01:51 +0000)]
Split class rtx_reader into md_reader vs rtx_reader
This moves read_rtx and friends into rtx_reader, and splits
rtx_reader into two classes:
class md_reader: has responsibility for reading chars, managing
include files, top-level directives etc. It is the read-md.o part.
class rtx_reader, a subclass, has the code for reading hierarchical
rtx expressions using the format codes. It is the read-rtl.o part.
This split is needed by a followup patch, which converts
read_rtx_operand to a virtual function of rtx_reader. To do this,
instances of rtx_reader (or its subclasses) need a vtable, which
needs to include a ptr to the code in read-rtl.o. Splitting it up
allows the gen* tools that currently purely use read-md.o to continue
to do so.
gcc/ChangeLog:
* genpreds.c (write_tm_constrs_h): Update for renaming of
rtx_reader_ptr to md_reader_ptr.
(write_tm_preds_h): Likewise.
(write_insn_preds_c): Likewise.
* read-md.c (rtx_reader_ptr): Rename to...
(md_reader_ptr): ...this, and convert from an
rtx_reader * to a md_reader *.
(rtx_reader::set_md_ptr_loc): Rename to...
(md_reader::set_md_ptr_loc): ...this.
(rtx_reader::get_md_ptr_loc): Rename to...
(md_reader::get_md_ptr_loc): ...this.
(rtx_reader::copy_md_ptr_loc): Rename to...
(md_reader::copy_md_ptr_loc): ...this.
(rtx_reader::fprint_md_ptr_loc): Rename to...
(md_reader::fprint_md_ptr_loc): ...this.
(rtx_reader::print_md_ptr_loc): Rename to...
(md_reader::print_md_ptr_loc): ...this.
(rtx_reader::join_c_conditions): Rename to...
(md_reader::join_c_conditions): ...this.
(rtx_reader::fprint_c_condition): ...this.
(rtx_reader::print_c_condition): Rename to...
(md_reader::print_c_condition): ...this.
(fatal_with_file_and_line): Update for renaming of
rtx_reader_ptr to md_reader_ptr.
(rtx_reader::require_char): Rename to...
(md_reader::require_char): ...this.
(rtx_reader::require_char_ws): Rename to...
(md_reader::require_char_ws): ...this.
(rtx_reader::require_word_ws): Rename to...
(md_reader::require_word_ws): ...this.
(rtx_reader::read_char): Rename to...
(md_reader::read_char): ...this.
(rtx_reader::unread_char): Rename to...
(md_reader::unread_char): ...this.
(rtx_reader::peek_char): Rename to...
(md_reader::peek_char): ...this.
(rtx_reader::read_name): Rename to...
(md_reader::read_name): ...this.
(rtx_reader::read_escape): Rename to...
(md_reader::read_escape): ...this.
(rtx_reader::read_quoted_string): Rename to...
(md_reader::read_quoted_string): ...this.
(rtx_reader::read_braced_string): Rename to...
(md_reader::read_braced_string): ...this.
(rtx_reader::read_string): Rename to...
(md_reader::read_string): ...this.
(rtx_reader::read_skip_construct): Rename to...
(md_reader::read_skip_construct): ...this.
(rtx_reader::handle_constants): Rename to...
(md_reader::handle_constants): ...this.
(rtx_reader::traverse_md_constants): Rename to...
(md_reader::traverse_md_constants): ...this.
(rtx_reader::handle_enum): Rename to...
(md_reader::handle_enum): ...this.
(rtx_reader::lookup_enum_type): Rename to...
(md_reader::lookup_enum_type): ...this.
(rtx_reader::traverse_enum_types): Rename to...
(md_reader::traverse_enum_types): ...this.
(rtx_reader::rtx_reader): Rename to...
(md_reader::md_reader): ...this, and update for renaming of
rtx_reader_ptr to md_reader_ptr.
(rtx_reader::~rtx_reader): Rename to...
(md_reader::~md_reader): ...this, and update for renaming of
rtx_reader_ptr to md_reader_ptr.
(rtx_reader::handle_include): Rename to...
(md_reader::handle_include): ...this.
(rtx_reader::handle_file): Rename to...
(md_reader::handle_file): ...this.
(rtx_reader::handle_toplevel_file): Rename to...
(md_reader::handle_toplevel_file): ...this.
(rtx_reader::get_current_location): Rename to...
(md_reader::get_current_location): ...this.
(rtx_reader::add_include_path): Rename to...
(md_reader::add_include_path): ...this.
(rtx_reader::read_md_files): Rename to...
(md_reader::read_md_files): ...this.
* read-md.h (class rtx_reader): Split into...
(class md_reader): ...new class.
(rtx_reader_ptr): Rename to...
(md_reader_ptr): ...this, and convert to a md_reader *.
(class noop_reader): Update base class to be md_reader.
(class rtx_reader): Reintroduce as a subclass of md_reader.
(rtx_reader_ptr): Reintroduce as a rtx_reader *.
(read_char): Update for renaming of rtx_reader_ptr to
md_reader_ptr.
(unread_char): Likewise.
* read-rtl.c (rtx_reader_ptr): New global.
(rtx_reader::apply_iterator_to_string): Rename to...
(md_reader::apply_iterator_to_string): ...this.
(rtx_reader::copy_rtx_for_iterators): Rename to...
(md_reader::copy_rtx_for_iterators): ...this.
(rtx_reader::read_conditions): Rename to...
(md_reader::read_conditions): ...this.
(rtx_reader::record_potential_iterator_use): Rename to...
(md_reader::record_potential_iterator_use): ...this.
(rtx_reader::read_mapping): Rename to...
(md_reader::read_mapping): ...this.
(rtx_reader::read_rtx): Use rtx_reader_ptr when calling
read_rtx_code.
(rtx_reader::read_rtx_operand): Use get_string_obstack rather
than directly accessing m_string_obstack.
(rtx_reader::rtx_reader): New ctor.
(rtx_reader::~rtx_reader): New dtor.
Martin Sebor [Thu, 8 Dec 2016 00:01:33 +0000 (00:01 +0000)]
PR c/53562 - Add -Werror= support for -D_FORTIFY_SOURCE / __builtin___memcpy_chk
PR c/53562 - Add -Werror= support for -D_FORTIFY_SOURCE / __builtin___memcpy_chk
PR middle-end/77784 - duplicate warning for snprintf when n > object size
PR middle-end/78149 - missing warning on strncpy buffer overflow due to an excessive bound
PR middle-end/78138 - missing warnings on buffer overflow with non-constant source length
re PR target/72717 (ICE: in emit_move_insn, at expr.c:3693 with vector shift @ powerpc64le)
[gcc]
2016-12-07 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/72717
* config/rs6000/rs6000.c (rs6000_expand_vector_init): If the
V2DImode elements are SUBREG's convert the result into DImode
rather than failing in emit_move_insn.
[gcc/testsuite]
2016-12-07 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/72717
* gcc.target/powerpc/pr72717.c: New test.
Jakub Jelinek [Wed, 7 Dec 2016 19:10:50 +0000 (20:10 +0100)]
re PR tree-optimization/78692 (ICE (segfault))
PR c++/78692
* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Set lhs
var to lhs of new_stmt right before noreturn handling rather than to
lhs of e->call_stmt early.
David Malcolm [Wed, 7 Dec 2016 18:16:32 +0000 (18:16 +0000)]
Add some functions for use by the RTL frontend.
gcc/ChangeLog:
* read-md.c (rtx_reader::require_char): New method.
(require_char_ws): Convert from function to...
(rtx_reader::require_char_ws): ...method.
(rtx_reader::require_word_ws): New method.
* read-md.h (rtx_reader::require_char): New method decl.
(require_char_ws): Remove global decl in favor of...
(rtx_reader::require_char_ws): ...new method decl.
(rtx_reader::require_word_ws): New method decl.
(rtx_reader::peek_char): New method decl.
re PR rtl-optimization/78617 (LRA clobbers live register during rematerialization)
2016-12-07 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR rtl-optimization/78617
* lra-remat.c (do_remat): Initialize live_hard_regs from live in
registers, also setting hard registers mapped to pseudo registers.
gcc/testsuite/
PR rtl-optimization/78617
* gcc.c-torture/execute/pr78617.c: New test.
David Malcolm [Wed, 7 Dec 2016 16:41:05 +0000 (16:41 +0000)]
Introduce rtl_data::init_stack_alignment
Move this part of "expand"'s initialization of crtl into its own
method so that it can used by the RTL frontend when postprocessing
RTL dumps.
gcc/ChangeLog:
* cfgexpand.c (pass_expand::execute): Move stack initializations
to rtl_data::init_stack_alignment and call it.
* emit-rtl.c (rtl_data::init_stack_alignment): New method.
* emit-rtl.h (rtl_data::init_stack_alignment): New method.
Carl Love [Wed, 7 Dec 2016 16:21:16 +0000 (16:21 +0000)]
builtins-3.c: Move built-in tests for P8 and P9 to their own test file.
2016-12-07 Carl Love <cel@us.ibm.com>
* gcc.target/powerpc/builtins-3.c: Move built-in tests for P8 and
P9 to their own test file. This allows precise constraints on the
effective target and compile options.
* gcc.target/powerpc/builtins-3-p8.c: New file for the vector
compare P8 built-in tests.
* gcc.target/powerpc/builtins-3-p9.c: New file for the vector
compare P9 built-in tests.
Wilco Dijkstra [Wed, 7 Dec 2016 14:55:31 +0000 (14:55 +0000)]
GCC caches the whether a function is a leaf in crtl->is_leaf.
GCC caches the whether a function is a leaf in crtl->is_leaf. Using this
in the backend is best as leaf_function_p may not work correctly (eg. while
emitting prolog or epilog code). There are many reads of crtl->is_leaf
before it is initialized. Many targets do in targetm.frame_pointer_required
(eg. arm, aarch64, i386, mips, sparc), which is called before register
allocation by ira_setup_eliminable_regset and sched_init.
Additionally, SHRINK_WRAPPING_ENABLED calls targetm.have_simple_return,
which evaluates the condition of the simple_return instruction. On ARM
this results in a call to use_simple_return_p which requires crtl->is_leaf
to be set correctly.
To fix this, initialize crtl->is_leaf in ira_setup_eliminable_regset and
early on in ira. A bootstrap did not find any uninitialized reads of
crtl->is_leaf on Thumb-2. A follow-up patch will remove incorrect uses
of leaf_function_p from the ARM backend.
Wilco Dijkstra [Wed, 7 Dec 2016 14:44:45 +0000 (14:44 +0000)]
Improve TI mode address offsets - these may either use LDP of 64-bit or LDR of 128-bit...
Improve TI mode address offsets - these may either use LDP of 64-bit or
LDR of 128-bit, so we need to use the correct intersection of offsets.
When splitting a large offset into base and offset, use a signed 9-bit
unscaled offset.
Remove the Ump constraint on movti and movtf instructions as this blocks
the reload optimizer from merging address CSEs (is this supposed to work
only on 'm' constraints?). The result is improved codesize, especially
wrf and gamess in SPEC2006.
gcc/
* config/aarch64/aarch64.md (movti_aarch64): Change Ump to m.
(movtf_aarch64): Likewise.
* config/aarch64/aarch64.c (aarch64_classify_address):
Use correct intersection of offsets.
(aarch64_legitimize_address_displacement): Use 9-bit signed offsets.
(aarch64_legitimize_address): Use 9-bit signed offsets for TI/TF mode.
Use 7-bit signed scaled mode for modes > 16 bytes.
decl.c (gnat_to_gnu_entity): When they are global...
* gcc-interface/decl.c (gnat_to_gnu_entity): When they are global,
consider ___XR GNAT encodings variables for renamings as static so
they have a location in the debug info.
Eric Botcazou [Wed, 7 Dec 2016 11:47:25 +0000 (11:47 +0000)]
decl.c (gnat_to_gnu_entity): Translate System.Address into ptr_type_node for every foreign convention.
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Variable>: Translate
System.Address into ptr_type_node for every foreign convention.
(gnat_to_gnu_subprog_type): Likewise for result and parameter types.
(gnat_to_gnu_param): Do not do it here for GCC builtins.
(intrin_return_compatible_p): Likewise.
Eric Botcazou [Wed, 7 Dec 2016 11:25:37 +0000 (11:25 +0000)]
decl.c (gnat_to_gnu_entity): Also call finish_character_type on Character subtypes.
* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Enumeration_Subtype>:
Also call finish_character_type on Character subtypes.
* gcc-interface/utils.c (finish_character_type): Deal with subtypes.
David Malcolm [Wed, 7 Dec 2016 01:28:13 +0000 (01:28 +0000)]
Fix x86_64-ism in selftest (PR bootstrap/78705)
In r243317 I accidentally introduced an assumption in a selftest
in i386.c that Pmode == DImode. This patch conditionalizes the
overzealous string comparison to avoid breaking the build on
32-bit i386.c targets.
gcc/ChangeLog:
PR bootstrap/78705
* config/i386/i386.c (selftest::ix86_test_dumping_memory_blockage):
Conditionalize the string comparison on Pmode == DImode.
Than McIntosh [Tue, 6 Dec 2016 22:31:25 +0000 (22:31 +0000)]
compiler: pass lvalue/rvalue context to back end for var exprs
Add a new flag on the Var_expression class that indicates
whether the var reference appears in an "lvalue" context
(for example, on the LHS of an assignment stmt) or an
"rvalue" context (for example, as an argument of a call).
Add a traversal pass that visits assignment stmt LHS subtrees
so as to mark things prior to backend gen. Select the right
context value in other places where Backend::var_expression is
called.
re PR target/78658 (powerpc64le: ICE with -mcpu=power9 -Og)
[gcc]
2016-12-06 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/78658
* config/rs6000/rs6000.md (zero_extendqi<mode>2): Use ^ instead of
?* constraints for the ISA 3.0 patterns, so the register allocator
is more likely to allocate QImode/HImode to vector registers for
conversion to floating point unless a reload is needed.
(zero_extendhi<mode>2): Likewise.
(float<QHI:mode><FP_ISA3:mode>2_internal): Properly deal with the
first alternative which is converting QImode/HImode to floating
point and the QImode/HImode value is in a vector register, and
does not allocate the second pseudo register. Remove zero
extending into traditional floating point registers, since the
instruction used only works on traditional altivec registers.
(floatuns<QHI:mode><FP_ISA3:mode>2_internal): Likewise.
[gcc/testsuite]
2016-12-06 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/78658
* gcc.target/powerpc/pr78658.c: New test.
David Malcolm [Tue, 6 Dec 2016 21:03:33 +0000 (21:03 +0000)]
print_rtx: implement support for reuse IDs (v2)
gcc/ChangeLog:
* config/i386/i386.c: Include print-rtl.h.
(selftest::ix86_test_dumping_memory_blockage): New function.
(selftest::ix86_run_selftests): Call it.
* print-rtl-function.c (print_rtx_function): Create an
rtx_reuse_manager and use it.
* print-rtl.c: Include "rtl-iter.h".
(rtx_writer::rtx_writer): Add reuse_manager param.
(rtx_reuse_manager::rtx_reuse_manager): New ctor.
(uses_rtx_reuse_p): New function.
(rtx_reuse_manager::preprocess): New function.
(rtx_reuse_manager::has_reuse_id): New function.
(rtx_reuse_manager::seen_def_p): New function.
(rtx_reuse_manager::set_seen_def): New function.
(rtx_writer::print_rtx): If "in_rtx" has a reuse ID, print it as a
prefix the first time in_rtx is seen, and print reuse_rtx
subsequently.
(print_inline_rtx): Supply NULL for new reuse_manager param.
(debug_rtx): Likewise.
(print_rtl): Likewise.
(print_rtl_single): Likewise.
(rtx_writer::print_rtl_single_with_indent): Likewise.
* print-rtl.h: Include bitmap.h when building for host.
(rtx_writer::rtx_writer): Add reuse_manager param.
(rtx_writer::m_rtx_reuse_manager): New field.
(class rtx_reuse_manager): New class.
* rtl-tests.c (selftest::assert_rtl_dump_eq): Add reuse_manager
param and use it when constructing rtx_writer.
(selftest::test_dumping_rtx_reuse): New function.
(selftest::rtl_tests_c_tests): Call it.
* selftest-rtl.h (class rtx_reuse_manager): New forward decl.
(selftest::assert_rtl_dump_eq): Add reuse_manager param.
(ASSERT_RTL_DUMP_EQ): Supply NULL for reuse_manager param.
(ASSERT_RTL_DUMP_EQ_WITH_REUSE): New macro.
Enable libstdc++ compilation in AVR targets with AVR-Libc. Most
floating point math functions are already defined in AVR-Libc, so
defines are in place to avoid multiple definition of these functions.
2016-12-06 Felipe Magno de Almeida <felipe@expertisesolutions.com.br>
* crossconfig.m4: Add avr target for cross-compilation.
* configure: Regenerate.
Kyrylo Tkachov [Tue, 6 Dec 2016 16:56:56 +0000 (16:56 +0000)]
[ARM][committed] Sort ARMv8 processors by alphabetic order
* config/arm/arm-cores.def (cortex-m23, cortex-m33): Move into
alphabetical order with respect to other ARMv8 processors.
* config/arm/arm-tables.opt: Regenerate.
* config/arm/arm-tune.md: Likewise.
Jonathan Wakely [Tue, 6 Dec 2016 14:36:07 +0000 (14:36 +0000)]
Fix pretty-printer for std::variant
* python/libstdcxx/v6/printers.py (StdVariantPrinter): Update for new
data member name.
* testsuite/libstdc++-prettyprinters/cxx17.cc: Remove redundant test.
Constrain optional's __constexpr_addressof in its return type and use a constexpr addressof for optional, if available.
Constrain optional's __constexpr_addressof in its return type
and use a constexpr addressof for optional, if available.
* include/experimental/optional (__constexpr_addressof):
Constrain in the return type instead of in a template parameter.
(_Has_addressof_mem)
(_Has_addressof_free, _Has_addressof, __constexpr_addressof):
Guard with #ifndef __cpp_lib_addressof_constexpr.
(operator->()): Use std::__addressof if it's constexpr.
Tim Shen [Tue, 6 Dec 2016 11:28:09 +0000 (11:28 +0000)]
variant (visit): Make visit constexpr.
* include/std/variant (visit): Make visit constexpr. Also cleanup
__get_alternative and __storage, since we don't support reference/void
alternatives any more.
* testsuite/20_util/variant/compile.cc: Add tests.
Aldy Hernandez [Tue, 6 Dec 2016 10:35:37 +0000 (10:35 +0000)]
re PR middle-end/78548 (ICE on valid C code on x86_64-linux-gnu at -O2 and -O3 in 64-bit mode with -Wall (*** Error in `/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/cc1': double free or corruption (fasttop): 0x0000000003c15810 ***))
PR middle-end/78548
* tree-ssa-uninit.c (simplify_preds_4): Call release() instead of
destroy_predicate_vecs.
(uninit_uses_cannot_happen): Make uninit_preds a scalar.
Aldy Hernandez [Tue, 6 Dec 2016 10:33:41 +0000 (10:33 +0000)]
re PR middle-end/78566 (gcc.dg/uninit-pred-6_[abc]*.c regressions on some non-x86 platforms)
PR middle-end/78566
* tree-ssa-uninit.c (can_one_predicate_be_invalidated_p): Change
argument type to a pred_chain.
(can_chain_union_be_invalidated_p): Use pred_chain instead of a
worklist.
(flatten_out_predicate_chains): Remove.
(uninit_uses_cannot_happen): Rename from
uninit_ops_invalidate_phi_use.
Change logic so that we are checking that the PHI use will
invalidate _ALL_ possibly uninitialized operands.
(is_use_properly_guarded): Rename call to
uninit_ops_invalidate_phi_use into uninit_uses_cannot_happen.
Jakub Jelinek [Tue, 6 Dec 2016 09:21:13 +0000 (10:21 +0100)]
re PR tree-optimization/78675 (ICE: verify_gimple failed (error: integral result type precision does not match field size of BIT_FIELD_REF))
2016-12-06 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/78675
* tree-vect-loop.c (vectorizable_live_operation): For
VECTOR_BOOLEAN_TYPE_P vectype use integral type with bitsize precision
instead of TREE_TYPE (vectype) for the BIT_FIELD_REF.
* gcc.c-torture/execute/pr78675.c: New test.
* gcc.target/i386/pr78675-1.c: New test.
* gcc.target/i386/pr78675-2.c: New test.
2016-12-05 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/78688
* config/rs6000/rs6000.h (FUNCTION_VALUE_REGNO_P): Use IN_RANGE
instead of ((N) >= (X) && (N) <= (Y-X)) to silence warnings about
comparing signed to unsigned values.
(FUNCTION_ARG_REGNO_P): Likewise.