* decl.c (builtin_function_1): Set DCL_ANTICIPATED before pushing.
(start_preparsed_function): Do decl pushing before setting
current_funciton_decl and announcing it.
From-SVN: r247754
* include/std/optional: Use a separate static_assert per condition.
* testsuite/20_util/optional/cons/value_neg.cc: Update dg-error line
numbers.
From-SVN: r247748
The movsi and movdi constraints allowed the source to be any
absolute symbolic expression ("S"). That's OK for operands that
have already been vetted by the aarch64_mov_operand predicate but
causes problems if the register allocator substitutes an equivalence
(the usual "the constraints can't accept more than the predicates"
restriction).
Although all other uses of "S" in the backend are redundant and could
in principle be removed, "S" itself is a publicly-documented constraint
and so we'd have to keep its definition. This patch therefore adds a
new "Usa" constraint for legitimate absolute address operands.
2017-05-08 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/constraints.md (Usa): New constraint.
* config/aarch64/aarch64.md (*movsi_aarch64, *movdi_aarch64): Use it.
From-SVN: r247746
TM_MULTILIB_CONFIG is not set in config.gcc when building with multilib
for arm targets, leading to config/arm/t-multilib not including any of
the files (t-aprofile and t-rmprofile) definining the architecture and
FPU to build multilib for. This patch fixes that by setting
TM_MULTILIB_CONFIG to with_multilib_list's value after it has been
checked. It also fix a trailing whitespace issue.
2017-05-08 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
* config.gcc (arm*-*-*): Set TM_MULTILIB_CONFIG from
with_multilib_list after it has been checked.
From-SVN: r247741
2017-05-08 Richard Biener <rguenther@suse.de>
* tree-vrp.c (gimple_assign_nonzero_warnv_p): Rename to ...
(gimple_assign_nonzero): ... this and remove strict_overflow_p
argument.
(gimple_stmt_nonzero_warnv_p): Rename to ...
(gimple_stmt_nonzero_p): ... this and remove strict_overflow_p
argument.
(vrp_stmt_computes_nonzero): Remove strict_overflow_p argument.
(extract_range_basic): Adjust, do not disable propagation on
strict overflow sensitive simplification.
(vrp_visit_cond_stmt): Likewise.
From-SVN: r247738
This fixes a few failures on ARM and AArch64 due to a recent change in
alignment peeling by switching the vector cost model off.
Tested on AArch64, ARM and x64 - committed as obvious.
testsuite/
* gcc.dg/vect/vect-44.c: Add -fno-vect-cost-model.
* gcc.dg/vect/vect-50.c: Likewise.
From-SVN: r247737
2017-05-07 Jeff Law <law@redhat.com>
Revert:
2017-05-06 Jeff Law <law@redhat.com>
PR tree-optimization/78496
* tree-vrp.c (simplify_assert_expr_using_ranges): Remove debugging
code.
PR tree-optimization/78496
* tree-vrp.c (simplify_assert_expr_using_ranges): New function.
(simplify_stmt_using_ranges): Call it.
(vrp_dom_walker::before_dom_children): Extract equivalences
from an ASSERT_EXPR with an equality comparison against a
constant.
Revert:
2017-05-06 Jeff Law <law@redhat.com>
PR tree-optimization/78496
* gcc.dg/tree-ssa/ssa-thread-16.c: New test.
* gcc.dg/tree-ssa/ssa-thread-17.c: New test.
From-SVN: r247727
PR tree-optimization/78496
* tree-vrp.c (simplify_assert_expr_using_ranges): New function.
(simplify_stmt_using_ranges): Call it.
(vrp_dom_walker::before_dom_children): Extract equivalences
from an ASSERT_EXPR with an equality comparison against a
constant.
PR tree-optimization/78496
* gcc.dg/tree-ssa/ssa-thread-16.c: New test.
* gcc.dg/tree-ssa/ssa-thread-17.c: New test.
From-SVN: r247721
If we decide to allocate a call-clobbered register R to a value that
is live across a call, LRA will create a new spill register TMPR,
insert:
TMPR <- R
before the call and
R <- TMPR
after it. But if we then failed to allocate a register to TMPR, we would
always spill it to the stack, even if R was known to be equivalent to
a constant or to some existing memory location. And on AArch64, we'd
always fail to allocate such a register for 128-bit Advanced SIMD modes,
since no registers of those modes are call-preserved.
This patch avoids the problem by copying the equivalence information
from the original pseudo to the spill register. It means that the
code for the testcase is as good with -O2 as it is with -O,
whereas previously the -O code was better.
[Based on the code ARM contributed in branches/ARM/sve-branch@247248]
2017-05-06 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
* lra-constraints.c (lra_copy_reg_equiv): New function.
(split_reg): Use it to copy equivalence information from the
original register to the spill register.
gcc/testsuite/
* gcc.target/aarch64/spill_1.c: New test.
From-SVN: r247720
RTL has no distinction between signed and unsigned values, so it
doesn't make sense to test for signed overflow.
2017-05-06 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
PR rtl-optimization/75964
* simplify-rtx.c (simplify_const_relational_operation): Remove
invalid handling of comparisons of integer ABS.
gcc/testsuite/
PR rtl-optimization/75964
* gcc.dg/torture/pr75964.c: New test.
From-SVN: r247719
* config/i386/i386.c (ext_80387_constant_init): Do not explicitly
initialize to zero.
(init_regs): Remove declaration.
(function_arg_advance_32): Initialize error_p as boolean variable.
From-SVN: r247711
diagnostic.h has a couple of macros (diagnostic_last_module_changed
and diagnostic_set_last_module) which are only used within
diagnostic_report_current_module.
This patch eliminates the macros in favor of static functions within
diagnostic.c.
No functional change intended.
gcc/ChangeLog:
* diagnostic.c (last_module_changed_p): New function.
(set_last_module): New function.
(diagnostic_report_current_module): Convert macro usage to
the above functions.
* diagnostic.h (diagnostic_context::last_module): Strengthen
from const line_map * to const line_map_ordinary *.
(diagnostic_last_module_changed): Delete macro.
(diagnostic_set_last_module): Delete macro.
From-SVN: r247664
This patch simplifies diagnostic_report_diagnostic by moving
option-printing to a new subroutine.
Doing so required a slight rewrite. In both the old and new
code, context->option_name returns a malloc-ed string.
The old behavior was to then use ACONCAT to manipulate the
format_spec, appending the option metadata.
ACONCAT calcs the buffer size, then uses alloca, and then copies the
data to the on-stack buffer.
Given the alloca, this needs rewriting when moving the printing to
a subroutine. In the new version, the metadata is simply printed
using pp_* calls (so it's hitting the obstack within the
pretty_printer).
This means we can get rid of the save/restore of format_spec: I don't
believe anything else in the code modifies it.
It also seems inherently simpler; it seems odd to me to be
appending metadata to the formatting string, rather than simply
printing the metadata after the formatted string is printed
(the old code also assumed that no option name contained a '%').
No functional change intended.
gcc/ChangeLog:
* diagnostic.c (diagnostic_report_diagnostic): Eliminate
save/restor of format_spec. Move option-printing code to...
(print_option_information): ...this new function, and
reimplement by simply printing to the pretty_printer,
rather than appending to the format string.
From-SVN: r247661
This patch simplifies diagnostic_report_diagnostic by moving the
pragma-handling logic into a subroutine.
No functional change intended.
gcc/ChangeLog:
* diagnostic.c (diagnostic_report_diagnostic): Split out pragma
handling logic into...
(update_effective_level_from_pragmas): ...this new function.
From-SVN: r247660
The RISC-V user ISA permits misaligned accesses, but they may trap
and be emulated. That emulation software needs to be compiled assuming
strict alignment.
Even when strict alignment is not required, set SLOW_UNALIGNED_ACCESS
based upon -mtune to avoid a performance pitfall.
gcc/ChangeLog:
2017-05-04 Andrew Waterman <andrew@sifive.com>
* config/riscv/riscv.opt (mstrict-align): New option.
* config/riscv/riscv.h (STRICT_ALIGNMENT): Use it. Update comment.
(SLOW_UNALIGNED_ACCESS): Define.
(riscv_slow_unaligned_access): Declare.
* config/riscv/riscv.c (riscv_tune_info): Add slow_unaligned_access
field.
(riscv_slow_unaligned_access): New variable.
(rocket_tune_info): Set slow_unaligned_access to true.
(optimize_size_tune_info): Set slow_unaligned_access to false.
(riscv_cpu_info_table): Add entry for optimize_size_tune_info.
(riscv_valid_lo_sum_p): Use TARGET_STRICT_ALIGN.
(riscv_option_override): Set riscv_slow_unaligned_access.
* doc/invoke.texi: Add -mstrict-align to RISC-V.
From-SVN: r247659
[gcc]
2017-05-05 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/79038
PR target/79202
PR target/79203
* config/rs6000/rs6000.md (u code attribute): Add FIX and
UNSIGNED_FIX.
(extendsi<mode>2): Add support for doing sign extension via
VUPKHSW and XXPERMDI if the value is in Altivec registers and we
don't have ISA 3.0 instructions.
(extendsi<mode>2 splitter): Likewise.
(fix_trunc<mode>si2): If we are at ISA 2.07 (VSX small integer),
generate the normal insns since SImode can now go in vector
registers. Disallow the special UNSPECs needed for previous
machines to hide SImode being used. Add new insns
fctiw{,w}_<mode>_smallint if SImode can go in vector registers.
(fix_trunc<mode>si2_stfiwx): Likewise.
(fix_trunc<mode>si2_internal): Likewise.
(fixuns_trunc<mode>si2): Likewise.
(fixuns_trunc<mode>si2_stfiwx): Likewise.
(fctiw<u>z_<mode>_smallint): Likewise.
(fctiw<u>z_<mode>_mem): New combiner pattern to prevent conversion
of floating point to 32-bit integer from doing a direct move to
the GPR registers to do a store.
(fctiwz_<mode>): Break long line.
[gcc/testsuite]
2017-05-05 Michael Meissner <meissner@linux.vnet.ibm.com>
PR target/79038
PR target/79202
PR target/79203
* gcc.target/powerpc/ppc-round3.c: New test.
* gcc.target/powerpc/ppc-round2.c: Update expected code.
From-SVN: r247657
* cp-tree.h (IDENTIFIER_GLOBAL_VALUE): Use get_namespace_value.
(SET_IDENTIFIER_GLOBAL_VALUE): Use set_global_value.
(IDENTIFIER_NAMESPACE_VALUE): Delete.
* name-lookup.h (namespace_binding, set_namespace_binding):
Replace
with ...
(get_namespace_value, set_global_value): ... these.
(get_global_value_if_present, is_typename_at_global_scope):
Delete.
* decl.c (poplevel): Use get_namespace_value.
(grokdeclarator): Use IDENTIFIER_GLOBAL_VALUE.
* class.c (build_vtbl_initializer): Stash library decl in
static var. Use IDENTIFIER_GLOBAL_VALUE.
* except.c (do_get_exception_ptr, do_begin_catch, do_end_catch)
do_allocate_exception, do_free_exception, build_throw): Likewise.
* init.c (throw_bad_array_new_length): Likewise.
* rtti.c (throw_bad_cast, throw_bad_typeid): Likewise.
* name-lookup.c (arg_assoc_namespace, pushdecl_maybe_friend_1)
check_for_our_of_scope_variable, push_overloaded_decl_1): Use
get_namespace_value.
(set_namespace_binding_1): Rename to
(set_namespace_binding): ... here.
(set_global_value): New.
(lookup_name_innermost_nonclass_level_1, push_namespace): Use
get_namespace_value.
* pt.c (listify): Use get_namespace_value.
((--This line, and those below, will be ignored--
M cp/name-lookup.c
M cp/name-lookup.h
M cp/ChangeLog
M cp/except.c
M cp/class.c
M cp/pt.c
M cp/init.c
M cp/cp-tree.h
M cp/decl.c
M cp/rtti.c
From-SVN: r247654
2017-05-05 Steve Ellcey <sellcey@cavium.com>
* doc/invoke.texi (-fopt-info): Explicitly say order of options
included in -fopt-info does not matter.
* doc/optinfo.texi (-fopt-info): Fix description of default
behavour. Explicitly say order of options included in -fopt-info
does not matter.
From-SVN: r247648
