Add multilib variants for -march=rv64imafd, e.g. to support the BOOMv2 core.
Add -mcmodel=medany as a variant of the 64-bit multilibs for RTEMS. The
rationale for this change is that several existing RISC-V chips map the
RAM at 0x80000000. In RTEMS, we do not use virtual memory, so
applications will run at this location which is outside the +-2GiB range
in a 64-bit configuration.
gcc/
* config.gcc (riscv*-*-elf* | riscv*-*-rtems*): Use custom
multilibs for *-*-rtems*.
* config/riscv/t-rtems: New file.
From-SVN: r261619
* include/std/future (__constrain_pkgdtask): Replace with ...
(packaged_task::__not_same): New alias template, using
__remove_cvref_t instead of decay.
* include/std/thread (thread::__not_same): Add comment.
From-SVN: r261618
P0624R2 - Default constructible and assignable stateless lambdas
* method.c (synthesized_method_walk): For C++2a don't mark
sfk_constructor or sfk_copy_assignment as deleted if lambda has
no lambda-captures.
* g++.dg/cpp2a/lambda1.C: New test.
* g++.dg/cpp0x/lambda/lambda-ice2.C: Adjust expected diagnostics
for -std=c++2a.
From-SVN: r261605
Defining std::tuple_element_t in <utility> makes it available wherever
std::tuple_element is available.
* include/std/tuple (__cpp_lib_tuple_element_t, tuple_element_t):
Move back to <utility>.
* include/std/utility (__cpp_lib_tuple_element_t. tuple_element_t):
Restore to here.
From-SVN: r261604
* include/std/tuple (__cpp_lib_tuple_element_t): Move feature test
macro from <utility> and change type to long.
* include/std/utility (__cpp_lib_tuple_element_t): Remove.
* testsuite/20_util/tuple/tuple_element_t.cc: Check for feature test
macro.
From-SVN: r261596
PR target/85945
* lower-subreg.c (find_decomposable_subregs): Don't decompose float
subregs of multi-word pseudos unless the float mode has word size.
* gcc.c-torture/compile/pr85945.c: New test.
From-SVN: r261593
Construct new elements before moving existing ones, so that if a default
constructor throws, the existing elements are not left in a moved-from
state.
2018-06-14 Daniel Trebbien <dtrebbien@gmail.com>
Jonathan Wakely <jwakely@redhat.com>
PR libstdc++/83982
* include/bits/vector.tcc (vector::_M_default_append(size_type)):
Default-construct new elements before moving existing ones.
* testsuite/23_containers/vector/capacity/resize/strong_guarantee.cc:
New.
Co-Authored-By: Jonathan Wakely <jwakely@redhat.com>
From-SVN: r261585
Common systems like glibc and FreeBSD define int32_t to int. This means
a lot of third party code works well in these cases:
#include <stdint.h>
void f(int32_t);
void f(int);
void g(int32_t *);
void h(void)
{
int i;
g(&i);
}
On RTEMS you got however in C
test.c:5:6: error: conflicting types for 'f'
void f(int);
^
test.c:3:6: note: previous declaration of 'f' was here
void f(int32_t);
^
test.c: In function 'h':
test.c:12:4: warning: passing argument 1 of 'g' from incompatible
pointer type [-Wincompatible-pointer-types]
g(&i);
^
test.c:7:6: note: expected 'int32_t * {aka long int *}' but argument
is of type 'int *' void g(int32_t *);
and C++
test.c: In function 'void h()':
test.c:12:4: error: invalid conversion from 'int*' to 'int32_t* {aka
long int*}' [-fpermissive]
g(&i);
^~
test.c:7:6: note: initializing argument 1 of 'void g(int32_t*)'
void g(int32_t *);
^
This was due to a Newlib speciality which uses long for int32_t if long
is a 32-bit type. To ease the use of third party software in RTEMS we
override this Newlib option now and use int for int32_t if int is a
32-bit type.
gcc/
* config/rtems.h (STDINT_LONG32): Define.
From-SVN: r261582
The traversal used by the write barrier insertion phase can sometimes
wind up visiting new statements inserted during the traversal, which
then results in duplicate / redundant write barrier guards. Example
program to reproduce:
package small
type S struct {
N *S
K int
}
var G *S = &S{N: nil, K: 101}
This patch changes the traversal code to keep track of statements
already added and avoid processing them again later in the traversal.
Fixesgolang/go#25867
Reviewed-on: https://go-review.googlesource.com/118637
From-SVN: r261568
gcc/c-family/
* c-opts.c (c_common_post_options): Bump the current ABI version to
13. Set warn_abi_version and flag_abi_compat_version to the current
version rather than 0. Fix defaulting flag_abi_compat_version from
warn_abi_version.
gcc/cp/
* class.c (classtype_has_non_deleted_move_ctor): New.
* tree.c (maybe_warn_parm_abi, type_has_nontrivial_copy_init):
Handle v12 breakage.
From-SVN: r261562
Dump out the blocks corresponding to variable pre-inits when
-fgo-dump-ast is in effect. Each preinit block is prefixed with a
comment indicating the variable it is initializing.
Reviewed-on: https://go-review.googlesource.com/118636
From-SVN: r261555
There is no need to use an allocator of the correct value_type when
calling allocator_traits::construct and allocator_traits::destroy. The
existing node allocator can be used, instead of constructing a new
allocator object every time.
There's also no benefit to using __gnu_cxx::__alloc_traits instead of
std::allocator_traits to get the pointer and const_pointer types.
std::forward_list is only available for C++11 and later, when
std::allocator_traits is available too.
PR libstdc++/86127
* include/bits/forward_list.h (_Fwd_list_base::_Tp_alloc_type): Remove
unused typedef.
(_Fwd_list_base::_Node_alloc_traits): Use allocator_traits instead of
__gnu_cxx::__alloc_traits.
(_Fwd_list_base::_M_create_node, _Fwd_list_base::_M_erase_after):
Use node allocator to create and destroy elements.
(forward_list::_Tp_alloc_type): Remove unused typedef.
(forward_list::_Alloc_traits): Use allocator_traits instead of
__gnu_cxx::__alloc_traits.
From-SVN: r261554
2018-06-13 Richard Biener <rguenther@suse.de>
* tree-vect-patterns.c (vect_recog_vector_vector_shift_pattern):
Properly set vector type of the intermediate stmt.
* tree-vect-stmts.c (vectorizable_operation): The destination
var always has vectype_out type.
From-SVN: r261553
This patch converts various rtx to rtx_insn * (or rtx_code_label *).
It also convert the various "_loc" params from int to location_t
gcc/ChangeLog:
* config/arc/arc.c (hwloop_optimize): Strengthen local "end_label"
from rtx to rtx_insn *.
* config/bfin/bfin.c (hwloop_optimize): Likewise for local
"label".
(add_sched_insns_for_speculation): Likewise for local "target",
converting usage of JUMP_LABEL to JUMP_LABEL_AS_INSN.
* config/c6x/c6x.c (reorg_split_calls): Strengthen param "call_labels"
from rtx_insn ** to rtx_code_label **.
(reorg_emit_nops): Likewise.
(c6x_reorg): Likewise for local "call_labels".
* config/sh/sh-protos.h (get_dest_uid): Strengthen 1st param from
rtx to rtx_insn *.
* config/sh/sh.c (dump_table): Strengthen local "lab" from rtx to
rtx_code_label *, adding safe_as_a <rtx_code_label *> casts to
the loops over LABEL_REFS.
(fixup_addr_diff_vecs): Add as_a <rtx_insn *> to usage of
braf_label.
(barrier_align): Convert usage of JUMP_LABEL to JUMP_LABEL_AS_INSN.
(get_dest_uid): Strengthen param "label" from rtx to rtx_insn *.
(split_branches): Strengthen local "olabel" from rtx to
rtx_insn *, adding a safe_as_a cast.
* emit-rtl.c (next_real_insn): Strengthen param from "rtx"
to "rtx_insn *".
(add_insn_after): Likewise for first two params.
(add_insn_before): Likewise.
(remove_insn): Likewise for param.
(emit_pattern_before_noloc): Likewise for second and third params.
(emit_jump_insn_before_noloc): Convert NULL_RTX to NULL.
(emit_call_insn_before_noloc): Likewise.
(emit_debug_insn_before_noloc): Strengthen "before" param from "rtx"
to "rtx_insn *".
(emit_barrier_before): Likewise.
(emit_label_before): Strengthen "label" param from "rtx" to
"rtx_code_label *". Strengthen "before" param from "rtx" to
"rtx_insn *".
(emit_insn_after_1): Strengthen "after" param from "rtx" to
"rtx_insn *".
(emit_pattern_after_noloc): Likewise.
(emit_insn_after_noloc): Likewise.
(emit_jump_insn_after_noloc): Likewise.
(emit_call_insn_after_noloc): Likewise.
(emit_debug_insn_after_noloc): Likewise.
(emit_barrier_after): Likewise.
(emit_label_after): Likewise for both params.
(emit_pattern_after_setloc): Likewise for "after" param. Convert
"loc" param from "int" to "location_t".
(emit_insn_after_setloc): Likewise.
(emit_jump_insn_after_setloc): Likewise.
(emit_call_insn_after_setloc): Likewise.
(emit_debug_insn_after_setloc): Likewise.
(emit_pattern_before_setloc): Likewise for "before" param. Convert
"loc" param from "int" to "location_t".
(emit_pattern_before): Convert NULL_RTX to NULL.
(emit_insn_before_setloc): Convert "loc" param from "int" to
"location_t".
(emit_jump_insn_before_setloc): Likewise.
(emit_call_insn_before_setloc): Likewise.
(emit_debug_insn_before_setloc): Strengthen "before" param from rtx to
rtx_insn *. Convert "loc" param from "int" to "location_t".
* rtl.h (emit_insn_before_setloc, emit_jump_insn_before_setloc,
emit_call_insn_before_setloc, emit_debug_insn_before_setloc):
Convert 3rd param from "int" to "location_t".
(emit_barrier_before, emit_barrier_after, next_real_insn):
Strengthen param from rtx to rtx_insn *.
(emit_label_before): Strengthen 1st param from "rtx" to
"rtx_code_label *". Strengthen 2nd param from "rtx" to
"rtx_insn *".
(emit_insn_after_noloc, emit_jump_insn_after_noloc,
emit_call_insn_after_noloc, emit_debug_insn_after_noloc):
Strengthen 2nd param from "rtx" to "rtx_insn *".
(emit_insn_after_setloc, emit_jump_insn_after_setloc)
emit_call_insn_after_setloc, emit_debug_insn_after_setloc):
Likewise. Convert 3rd param from "int" to "location_t".
(emit_label_after): Strengthen 1st param from "rtx" to
"rtx_code_label *".
(next_real_insn, remove_insn): Strengthen param from "rtx" to
"rtx_insn *".
(add_insn_before, add_insn_after): Strengthen 1st and 2nd params
from "rtx" to "rtx_insn *".
From-SVN: r261547
PR target/86048
* config/i386/winnt.c (i386_pe_seh_cold_init): Do not emit negative
offsets for register save directives. Emit a second batch of save
directives, if need be, when the function accesses prior frames.
From-SVN: r261544
Accept at most a single constant for fma patterns.
gcc/
2018-03-21 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/fpu.md (fmasf4): Force operand to register.
(fnmasf4): Likewise.
gcc/testsuite
2018-03-21 Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/fma-1.c: New test.
From-SVN: r261543
For ARC700, adding padding if necessary to avoid a mispredict. A
return could happen immediately after the function start. A
call/return and return/return must be 6 bytes apart to avoid
mispredict.
The old implementation was doing this operation very late in the
compilation process, and the additional nop instructions and/or
forcing some other instruction to take their long form was not taken
into account when generating brcc instructions. Thus, wrong code could
be generated.
gcc/
2017-03-24 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc-protos.h (arc_pad_return): Remove.
* config/arc/arc.c (machine_function): Remove force_short_suffix
and size_reason.
(arc_print_operand): Adjust printing of '&'.
(arc_verify_short): Remove conditional printing of short suffix.
(arc_final_prescan_insn): Remove reference to size_reason.
(pad_return): New function.
(arc_reorg): Call pad_return.
(arc_pad_return): Remove.
(arc_init_machine_status): Remove reference to force_short_suffix.
* config/arc/arc.md (vunspec): Add VUNSPEC_ARC_BLOCKAGE.
(attr length): When attribute iscompact is true force to 2
regardless; in the case of maybe check if we want to force the
instruction to have 4 bytes length.
(nopv): Change it to generate 4 byte long nop as well.
(blockage): New pattern.
(simple_return): Remove call to arc_pad_return.
(p_return_i): Likewise.
gcc/testsuite/
2017-03-24 Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/pr9001107555.c: New file.
From-SVN: r261542
gcc/
2017-05-02 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (atomic_exchangesi): EX instruction is default
for ARC700 and ARCv2.
From-SVN: r261539