Richard Biener [Mon, 20 Mar 2017 13:06:58 +0000 (13:06 +0000)]
re PR tree-optimization/80113 (ICE in set_var_live_on_entry at tree-ssa-live.c:1018)
2017-03-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/80113
* graphite-isl-ast-to-gimple.c (copy_loop_phi_nodes): Do not
allocate extra SSA name for PHI def.
(add_close_phis_to_outer_loops): Likewise.
(add_close_phis_to_merge_points): Likewise.
(copy_loop_close_phi_args): Likewise.
(copy_cond_phi_nodes): Likewise.
Martin Liska [Mon, 20 Mar 2017 10:06:00 +0000 (11:06 +0100)]
MPX: fix PR middle-end/79753
2017-03-20 Martin Liska <mliska@suse.cz>
PR middle-end/79753
* tree-chkp.c (chkp_build_returned_bound): Do not build
returned bounds for a LHS that's not a BOUNDED_P type.
2017-03-20 Martin Liska <mliska@suse.cz>
PR middle-end/79753
* gcc.target/i386/mpx/pr79753.c: New test.
Andreas Krebbel [Mon, 20 Mar 2017 09:33:11 +0000 (09:33 +0000)]
S/390: PR78857: Don't use load and test if result is live.
The FP load and test instruction should not be used for a comparison
if the target operand is being used afterwards. It unfortunately
turns SNaNs into QNaNs.
gcc/ChangeLog:
2017-03-20 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
PR target/78857
* config/s390/s390.md ("cmp<mode>_ccs_0"): Add a clobber of the
target operand. A new splitter adds the clobber statement in case
the target operand is dead anyway.
gcc/testsuite/ChangeLog:
2017-03-20 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
PR target/78857
* gcc.target/s390/load-and-test-fp-1.c: New test.
* gcc.target/s390/load-and-test-fp-2.c: New test.
Paul Thomas [Sat, 18 Mar 2017 12:38:02 +0000 (12:38 +0000)]
re PR fortran/79676 ([submodules] Compilation/linking error when module procedures PRIVATE)
2017-03-18 Paul Thomas <pault@gcc.gnu.org>
PR fortran/79676
* module.c (mio_symbol_attribute): Remove reset of the flag
'no_module_procedures'.
(check_for_module_procedures): New function. Move declaration
of 'no_module_procedures' to above it.
(gfc_dump_module): Traverse namespace calling new function.
2017-03-18 Paul Thomas <pault@gcc.gnu.org>
PR fortran/79676
* gfortran.dg/submodule_28.f08 : New test.
Jonathan Wakely [Fri, 17 Mar 2017 19:28:05 +0000 (19:28 +0000)]
Fix alignment bugs in std::codecvt_utf16
* src/c++11/codecvt.cc (range): Add non-type template parameter and
define oerloaded operators for reading and writing code units.
(range<Elem, false>): Define partial specialization for accessing
wide characters in potentially unaligned byte ranges.
(ucs2_span(const char16_t*, const char16_t*, ...))
(ucs4_span(const char16_t*, const char16_t*, ...)): Change parameters
to range<const char16_t, false> in order to avoid unaligned reads.
(__codecvt_utf16_base<char16_t>::do_out)
(__codecvt_utf16_base<char32_t>::do_out)
(__codecvt_utf16_base<wchar_t>::do_out): Use range specialization for
unaligned data to avoid unaligned writes.
(__codecvt_utf16_base<char16_t>::do_in)
(__codecvt_utf16_base<char32_t>::do_in)
(__codecvt_utf16_base<wchar_t>::do_in): Likewise for writes. Return
error if there are unprocessable trailing bytes.
(__codecvt_utf16_base<char16_t>::do_length)
(__codecvt_utf16_base<char32_t>::do_length)
(__codecvt_utf16_base<wchar_t>::do_length): Pass arguments of type
range<const char16_t, false> to span functions.
* testsuite/22_locale/codecvt/codecvt_utf16/misaligned.cc: New test.
Bernd Schmidt [Fri, 17 Mar 2017 15:10:13 +0000 (09:10 -0600)]
re PR rtl-optimization/79910 (wrong code with -O -fweb)
PR rtl-optimization/79910
* combine.c (record_used_regs): New static function.
(try_combine): Handle situations where there is an additional
instruction between I2 and I3 which needs to have a LOG_LINK
updated.
PR rtl-optimization/79910
* gcc.dg/torture/pr79910.c: New test.
Jeff Law [Fri, 17 Mar 2017 15:01:56 +0000 (09:01 -0600)]
re PR tree-optimization/71437 (Performance regression after r235817)
PR tree-optimization/71437
* tree-vrp.c (simplify_stmt_for_jump_threading): Lookup the
conditional in the hash table first.
(vrp_dom_walker::before_dom_children): Extract condition from
ASSERT_EXPR. Record condition, its inverion and any implied
conditions as well.
PR tree-optimization/71437
* gcc.dg/tree-ssa/pr71437.c: New test.
* gcc.dg/tree-ssa/20040305-1.c: Test earlier dump.
* gcc.dg/tree-ssa/ssa-dom-thread-4.c: Adjust for jump threads
now caught by VRP, but which were previously caught by DOM.
Richard Biener [Fri, 17 Mar 2017 12:48:56 +0000 (12:48 +0000)]
re PR c++/80075 (ICE: "statement marked for throw, but doesn’t" with -fnon-call-exceptions)
2017-03-17 Richard Biener <rguenther@suse.de>
PR middle-end/80075
* tree-eh.c (stmt_could_throw_1_p): Only handle gimple assigns.
Properly verify the LHS before the RHS possibly claims to be
handled.
(stmt_could_throw_p): Hande gimple conds fully here. Clobbers
do not throw.
Martin Jambor [Fri, 17 Mar 2017 12:34:27 +0000 (13:34 +0100)]
Document -fipa-vrp
2017-03-17 Martin Jambor <mjambor@suse.cz>
* doc/invoke.texi (Option Options): Include -fipa-vrp in the list.
(List of -O2 options): Likewise.
(-fipa-bit-cp): Replace "ipa" with "interprocedural."
(-fipa-vrp) New.
Alexandre Oliva [Thu, 16 Mar 2017 23:31:01 +0000 (23:31 +0000)]
stabilize store merging
Don't let pointer randomization change the order in which we process
store chains. This may cause SSA_NAMEs to be released in different
order, and if they're reused later, they may cause differences in SSA
partitioning, leading to differences in expand, and ultimately to
different code.
bootstrap-debug-lean (-fcompare-debug) on i686-linux-gnu has failed in
haifa-sched.c since r245196 exposed the latent ordering problem in
store merging. In this case, the IR differences (different SSA names
selected for copies in out-of-SSA, resulting in some off-by-one
differences in pseudos) were not significant enough to be visible in
the compiler output.
for gcc/ChangeLog
* gimple-ssa-store-merging.c (struct imm_store_chain_info):
Add linked-list forward and backlinks. Insert on
construction, remove on destruction.
(class pass_store_merging): Add m_stores_head field.
(pass_store_merging::terminate_and_process_all_chains):
Iterate over m_stores_head list.
(pass_store_merging::terminate_all_aliasing_chains):
Likewise.
(pass_store_merging::execute): Check for debug stmts first.
Push new chains onto the m_stores_head stack.
Michael Meissner [Thu, 16 Mar 2017 20:09:21 +0000 (20:09 +0000)]
re PR target/71294 (ICE in gen_add2_insn, at optabs.c:4442 on powerpc64le-linux)
[gcc]
2017-03-16 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/71294
* config/rs6000/vsx.md (vsx_splat_<mode>, VSX_D iterator): Allow a
SPLAT operation on ISA 2.07 64-bit systems that have direct move,
but no MTVSRDD support, by doing MTVSRD and XXPERMDI.
[gcc/testsuite]
2017-03-16 Michael Meissner <meissner@linux.vnet.ibm.com>
Jeff Law [Thu, 16 Mar 2017 19:21:33 +0000 (13:21 -0600)]
re PR tree-optimization/71437 (Performance regression after r235817)
PR tree-optimization/71437
* tree-ssa-dom.c (dom_opt_dom_walker): Remove thread_across_edge
member function. Implementation moved into after_dom_children
member function and into the threader's thread_outgoing_edges
function.
(dom_opt_dom_walker::after_dom_children): Simplify by moving
some code into new thread_outgoing_edges.
* tree-ssa-threadedge.c (thread_across_edge): Make static and simplify
definition. Simplify marker handling (do it here). Assume we always
have the available expression and the const/copies tables.
(thread_outgoing_edges): New function extracted from tree-ssa-dom.c
and tree-vrp.c
* tree-ssa-threadedge.h (thread_outgoing_edges): Declare.
* tree-vrp.c (equiv_stack): No longer file scoped.
(vrp_dom_walker): New class.
(vrp_dom_walker::before_dom_children): New member function.
(vrp_dom_walker::after_dom_children): Likewise.
(identify_jump_threads): Setup domwalker. Use it rather than
walking edges in a random order by hand. Simplify setup/finalization.
(finalize_jump_threads): Remove.
(vrp_finalize): Do not call identify_jump_threads here.
(execute_vrp): Do it here instead and call thread_through_all_blocks
here too.
Jeff Law [Thu, 16 Mar 2017 19:21:23 +0000 (13:21 -0600)]
re PR tree-optimization/71437 (Performance regression after r235817)
PR tree-optimization/71437
* tree-ssa-dom.c (pfn_simplify): Add basic_block argument. All
callers changed.
(simplify_stmt_for_jump_threading): Add basic_block argument. All
callers changed.
(lhs_of_dominating_assert): Moved from here into tree-vrp.c.
(dom_opt_dom_walker::thread_across_edge): Remove
handle_dominating_asserts argument. All callers changed.
(record_temporary_equivalences_from_stmts_at_dest): Corresponding
changes. Remove calls to lhs_of_dominating_assert. Other
uses of handle_dominating_asserts turn into unconditional code
(simplify_control_stmt_condition_1): Likewise.
(simplify_control_stmt_condition): Likewise.
(thread_through_normal_block, thread_across_edge): Likewise.
* tree-ssa-threadedge.h (thread_across_edge): Corresponding changes.
* tree-vrp.c (lhs_of_dominating_assert): Move here. Return original
object if it is not an SSA_NAME.
(simplify_stmt_for_jump_threading): Call lhs_of_dominating_assert
before calling into the VRP specific simplifiers.
(identify_jump_threads): Remove handle_dominating_asserts
argument.
Jakub Jelinek [Thu, 16 Mar 2017 16:50:27 +0000 (17:50 +0100)]
re PR fortran/80010 (diagnostics: typo $!)
PR fortran/80010
* parse.c (gfc_ascii_statement): Use !$ACC for ST_OACC_ATOMIC
and ST_OACC_END_ATOMIC, instead of !ACC.
* trans-decl.c (finish_oacc_declare): Use !$ACC instead of $!ACC.
* openmp.c (gfc_match_oacc_declare, gfc_match_oacc_wait,
gfc_resolve_oacc_declare): Likewise.
Jakub Jelinek [Thu, 16 Mar 2017 16:27:08 +0000 (17:27 +0100)]
re PR fortran/79886 (ICE in pp_format, at pretty-print.c:681)
PR fortran/79886
* tree-diagnostic.c (default_tree_printer): No longer static.
* tree-diagnostic.h (default_tree_printer): New prototype.
fortran/
* error.c (gfc_format_decoder): Rename plus argument to set_locus,
remove ATTRIBUTE_UNUSED from all arguments, call default_tree_printer
if not a Fortran specific spec.
* trans-io.c: Include options.h.
(gfc_build_st_parameter): Temporarily disable -Wpadded around layout
of artificial IO data structures.
testsuite/
* gfortran.dg/pr79886.f90: New test.
Jonathan Wakely [Thu, 16 Mar 2017 15:28:02 +0000 (15:28 +0000)]
PR libstdc++/80041 fix codecvt_utf16<wchar_t> to use UTF-16 not UTF-8
PR libstdc++/80041
* src/c++11/codecvt.cc (__codecvt_utf16_base<wchar_t>::do_out)
(__codecvt_utf16_base<wchar_t>::do_in): Convert char arguments to
char16_t to work with UTF-16 instead of UTF-8.
* testsuite/22_locale/codecvt/codecvt_utf16/80041.cc: New test.
PR libstdc++/79980
* include/bits/locale_conv.h (__do_str_codecvt): Set __count on
error path.
* src/c++11/codecvt.cc (operator&=, operator|=, operator~): Overloads
for manipulating codecvt_mode values.
(read_utf16_bom): Compare input to BOM constants instead of integral
constants that depend on endianness. Take mode parameter by
reference and adjust it, to distinguish between no BOM present and
UTF-16BE BOM present.
(ucs4_in, ucs2_span, ucs4_span): Adjust calls to read_utf16_bom.
(surrogates): New enumeration type.
(utf16_in, utf16_out): Add surrogates parameter to choose between
UTF-16 and UCS2 behaviour.
(utf16_span, ucs2_span): Use std::min not std::max.
(ucs2_out): Use std::min not std::max. Disallow surrogate pairs.
(ucs2_in): Likewise. Adjust calls to read_utf16_bom.
* testsuite/22_locale/codecvt/codecvt_utf16/79980.cc: New test.
* testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: New test.
Jonathan Wakely [Thu, 16 Mar 2017 15:27:45 +0000 (15:27 +0000)]
PR libstdc++/79511 fix endianness of UTF-16 data
PR libstdc++/79511
* src/c++11/codecvt.cc (write_utf16_code_point): Don't write 0xffff
as a surrogate pair.
(__codecvt_utf8_utf16_base<char32_t>::do_in): Use native endianness
for internal representation.
(__codecvt_utf8_utf16_base<wchar_t>::do_in): Likewise.
* testsuite/22_locale/codecvt/codecvt_utf8_utf16/79511.cc: New test.
Kyrylo Tkachov [Thu, 16 Mar 2017 10:03:11 +0000 (10:03 +0000)]
[AArch64] Use 'x' constraint for vector HFmode multiplication by indexed element instructions
* config/aarch64/iterators.md (h_con): Return "x" for V4HF and V8HF.
* config/aarch64/aarch64-simd.md (*aarch64_fma4_elt_from_dup<mode>):
Use h_con constraint for operand 1.
(*aarch64_fnma4_elt_from_dup<mode>): Likewise.
(*aarch64_mulx_elt_from_dup<mode>): Likewise for operand 2.
Jeff Law [Thu, 16 Mar 2017 03:19:35 +0000 (21:19 -0600)]
re PR tree-optimization/71437 (Performance regression after r235817)
PR tree-optimization/71437
* tree-ssa-dom.c (struct cond_equivalence): Moved from here into
tree-ssa-scopedtables.
(lookup_avail_expr, build_and_record_new_cond): Likewise.
(record_conditions, record_cond, vuse_eq): Likewise.
(record_edge_info): Adjust to API tweak of record_conditions.
(simplify_stmt_for_jump_threading): Similarly for lookup_avail_expr.
(record_temporary_equivalences, optimize_stmt): Likewise.
(eliminate_redundant_computations): Likewise.
(record_equivalences_from_stmt): Likewise.
* tree-ssa-scopedtables.c: Include options.h and params.h.
(vuse_eq): New function, moved from tree-ssa-dom.c
(build_and_record_new_cond): Likewise.
(record_conditions): Likewise. Accept vector of conditions rather
than edge_equivalence structure for first argument.
for the first argument.
(avail_exprs_stack::lookup_avail_expr): New member function, moved
from tree-ssa-dom.c.
(avail_exprs_stack::record_cond): Likewise.
* tree-ssa-scopedtables.h (struct cond_equivalence): Moved here
from tree-ssa-dom.c.
(avail_exprs_stack): Add new member functions lookup_avail_expr
and record_cond.
(record_conditions): Declare.
Implement LWG 2857, {variant,optional,any}::emplace should return the constructed value.
Implement LWG 2857, {variant,optional,any}::emplace should
return the constructed value.
* include/std/any (emplace(_Args&&...)): Change the return type and
return a reference to the constructed value.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/optional (emplace(_Args&&...)): Likewise.
(emplace(initializer_list<_Up>, _Args&&...)): Likewise.
* include/std/variant (emplace<_Tp>(_Args&&...)): Likewise.
(emplace<_Tp>(initializer_list<_Up>, _Args&&...)): Likewise.
(emplace<_Np>(_Args&&...)): Likewise.
(emplace<_Np>(initializer_list<_Up>, _Args&&...)): Likewise.
* testsuite/20_util/any/assign/emplace.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/any/misc/any_cast_neg.cc: Adjust.
* testsuite/20_util/optional/assignment/6.cc: Add tests for
checking the return value of emplace.
* testsuite/20_util/variant/run.cc: Likewise.
It was XFAILed because there was a bug in glibc, but that bug was fixed
nine years ago. Nowadays everyone uses a version of glibc with the bug
fixed, so we should no longer XFAIL the test.
gcc/testsuite/
PR fortran/33271
* gfortran.dg/nint_2.f90: Do not xfail powerpc*-*-linux*.
PR bootstrap/79771
* gzguts.h (WIDECHAR): Do not define for __CYGWIN__.
* zlib.h (gzopen_w): Do not declare for __CYGWIN__.
* win32/zlib.def: Remove gzopen_w.
Bernd Schmidt [Tue, 14 Mar 2017 17:50:46 +0000 (11:50 -0600)]
re PR rtl-optimization/79728 (ICE in setup_pressure_classes, at ira.c:912)
PR rtl-optimization/79728
* regs.h (struct target_regs): New field
x_contains_allocatable_regs_of_mode.
(contains_allocatable_regs_of_mode): New macro.
* reginfo.c (init_reg_sets_1): Initialize it, and change
contains_reg_of_mode so it includes global regs as well.
* reload.c (push_reload): Use contains_allocatable_regs_of_mode
rather than contains_regs_of_mode.
PR rtl-optimization/79728
* gcc.target/i386/sse-globalreg.c: New test.
Nathan Sidwell [Tue, 14 Mar 2017 14:41:53 +0000 (14:41 +0000)]
PR c++/79393 DR 1658 workaround
PR c++/79393 DR 1658 workaround
* method.c (synthesized_method_base_walk): Inihibit abstract class
virtual base access check here.
(synthesized_method_walk): Not here.
git://gcc.gnu.org / gcc.git / log