* config/aarch64/aarch64-simd.md (*aarch64_simd_vec_copy_lane<mode>):
Use VALL_F16 iterator rather than VALL.
* gcc.target/aarch64/hfmode_ins_1.c: New test.
From-SVN: r248835
* config/aarch64/aarch64.c (aarch64_split_compare_and_swap):
Emit CBNZ inside loop when doing a strong exchange and comparing
against zero. Generate the CC flags after the loop.
* gcc.target/aarch64/atomic_cmp_exchange_zero_strong_1.c: New test.
From-SVN: r248832
* dwarf2out.c (DWARF_INITIAL_LENGTH_SIZE_STR): New.
(dl_section_ref): New.
(dwarf2out_finish): Copy debug_line_section_label to dl_section_ref.
On AIX, append an expression to subtract the size of the
section length to dl_section_ref.
From-SVN: r248831
2017-06-02 Richard Biener <rguenther@suse.de>
* tree-vect-slp.c (vect_detect_hybrid_slp_2): Match up
what we consider a relevant use stmt with vect_detect_hybrid_slp_stmts.
From-SVN: r248825
2017-06-02 Richard Biener <rguenther@suse.de>
PR tree-optimization/80948
* tree-tailcall.c (find_tail_calls): Track stmts to move in
stmt order as well.
From-SVN: r248824
* libsupc++/Makefile.am: Remove custom targets for files that need to
be compiled as C++11 or C++14.
* libsupc++/Makefile.in: Regenerate.
* libsupc++/del_ops.cc: Use pragma to disable -Wsized-deallocation
warnings.
* libsupc++/del_opvs.cc: Likewise.
From-SVN: r248823
2017-06-02 Richard Biener <rguenther@suse.de>
* tree-vect-loop.c (vect_analyze_loop_operations): Not relevant
PHIs are ok.
* tree-vect-stmts.c (process_use): Do not mark backedge defs
for inductions as relevant.
From-SVN: r248820
[gcc/testsuite]
2017-05-26 Will Schmidt <will_schmidt@vnet.ibm.com>
* gcc.target/powerpc/fold-vec-logical-ors-longlong.c:
Update the target to power8-vector.
From-SVN: r248805
In GNAT, we materialize renamings that cannot be described in standard
DWARF as synthetic variables that describe how to fetch the renamed
object. Look for "___XR" in gcc/ada/exp_dbug.ads for more details about
this convention.
In order to have a location for these variables in the debug info (GDB
requires it not to discard the variable) but also to avoid allocating
runtime space for them, we make these variable hold a DECL_VALUE_EXPR
tree. However, since GCC 7, the DWARF back-end no longer generates a
DW_AT_location attribute for those. This patch is an attempt to restore
this attribute.
gcc/
* dwarf2out.c (dwarf2out_late_global_decl): Add locations for
symbols that hold a DECL_VALUE_EXPR.
gcc/testsuite/
* debug12.adb, debug12.ads: New testcase.
From-SVN: r248792
2017-06-01 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/80898
* tree-sra.c (process_subtree_disqualification): Removed.
(disqualify_candidate): Do not acll
process_subtree_disqualification.
(subtree_mark_written_and_enqueue): New function.
(propagate_all_subaccesses): Set grp_write of LHS subtree if the
RHS has been disqualified and re-queue LHS if necessary. Apart
from that, ignore disqualified RHS.
testsuite/
* gcc.dg/tree-ssa/pr80898.c: New test.
* gcc.dg/tree-ssa/pr80898-2.c: Likewise.
From-SVN: r248790
We used to load the return address slot some time in advance. This
helped on older machines to resolve the data dependencies in time.
However, it is pointless on out of order CPUs. Disabled with that
patch.
gcc/ChangeLog:
2017-06-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/s390.c (s390_emit_epilogue): Disable early return
address fetch for z10 or later.
From-SVN: r248789
/cp
2017-06-01 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/80896
* cvt.c (convert_to_void): Possibly call maybe_warn_nodiscard
for case INDIRECT_REF too in the main switch.
/testsuite
2017-06-01 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/80896
* g++.dg/cpp1z/nodiscard5.C: New.
From-SVN: r248784
arc_can_eliminate is using arc_frmae_pointer_required() which is wrong
as the frame_pointer_needed can be set on different conditions. Fix it
by calling arc_frame_pointer_needed().
gcc/
2017-06-01 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (arc_can_eliminate): Test against
arc_frame_pointer_needed.
From-SVN: r248782
If the stack pointer is needed, emit a special barrier that will prevent
the scheduler from moving stores to the frame before the stack adjustment.
For example:
[snip]
mov_s fp,sp ; frame pointer is set here
[snip]
st r1,[fp,-24] ; frame pointer is used here
[snip]
sub_s sp,sp,0x20 ; stack pointer adjusted
So we can easily see that any interrupt between the `st` and `sub`
instruction will lead to faulty code as the interrupt routine will use
a faulty sp register, and, potentially, overwriting the value stored
by 'st' instruction. Thus, adding a scheduler barrier will force the
compiler to emit the `sub` instruction before the store one.
2017-06-01 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (arc_expand_prologue): Emit a special barrier
to prevent store reordering.
* config/arc/arc.md (UNSPEC_ARC_STKTIE): Define.
(type): Add block type.
(stack_tie): Define special instruction to be used in
expand_prologue.
From-SVN: r248781
gcc/
2017-06-01 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.md (commutative_binary_comparison): Remove 'I'
constraint. It is not valid for the pattern.
(noncommutative_binary_comparison): Likewise.
From-SVN: r248780
gcc/
2018-06-01 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (arc_conditional_register_usage): Allow r30 to
be used by the reg-alloc.
From-SVN: r248778
gcc/ChangeLog:
* config/sparc/sparc.md (*zero_extendsidi2_insn_sp64): Set insn
type for movstouw.
(*sign_extendsidi2_insn): Likewise for movstosw.
From-SVN: r248774
In Ada, the Character type is supposed to be unsigned. However,
depending on the sign of C char types, GNAT can materialize it as a
signed type for code generation purposes. When this is the case, GNAT
also attach a debug type to it so it is represented as an unsigned base
type in the debug information.
This change adapts record variant parts processing in the DWARF back-end
so that when the debug type of discriminant is unsigned while
discriminant values are signed themselves, we output unsigned
discriminant values in DWARF.
gcc/
* dwarf2out.c (get_discr_value): Call the get_debug_type hook on
the type of the input discriminant value. Convert the
discriminant value of signedness vary.
gcc/testsuite/
* gnat.dg/debug11.adb: New testcase.
From-SVN: r248773
Paolo Carlini