PR libgomp/69555
* gimplify.c (gimplify_decl_expr): For decls with REFERENCE_TYPE, also
gimplify_type_sizes the type they refer to.
(omp_notice_variable): Handle reference vars to VLAs.
* omp-low.c (lower_omp_target): Emit setup of OMP_CLAUSE_PRIVATE reference
to VLA decls in the second pass instead of first pass.
* testsuite/libgomp.c++/pr69555-1.C: New test.
* testsuite/libgomp.c++/pr69555-2.C: New test.
From-SVN: r233913
PR tree-optimization/69987
* gfortran.dg/pr69987.f90: Use "-w" to avoid failures when the
target does not support -fprefetch-loop-arrays.
From-SVN: r233912
libbacktrace/
2016-03-02 Maxim Ostapenko <m.ostapenko@partner.samsung.com>
* elf.c (backtrace_initialize): Properly initialize elf_fileline_fn to
avoid possible crash.
(elf_add): Don't set *fileline_fn to elf_nodebug value in case of
missing debug info anymore.
From-SVN: r233911
PR tree-optimization/69052
* loop-invariant.c (canonicalize_address): New function.
(inv_can_prop_to_addr_use): Check validity of address expression
which is canonicalized by above function.
gcc/testsuite/ChangeLog
PR tree-optimization/69052
* gcc.target/i386/pr69052.c: New test.
From-SVN: r233907
This patch cures a problem with ICF of read-only variables at the
intersection of -fsection-anchors, -ftree-loop-vectorize, and targets
with alignment restrictions.
What happens with the testcase is:
- "c" is referenced in a constructor, thus make_decl_rtl for "c",
- make_decl_rtl puts "c" in an anchor block (-fsection-anchors),
- anchor block contents can't move, so "c" alignment can't change by
ipa_increase_alignment (-ftree-loop-vectorize),
- however "a" alignment can be increased,
- ICF aliases "a" to "c".
So we have a decl for "a" saying it is aligned to 128 bits, using mem
for "c" which is only 16 bit aligned.
PR ipa/69990
gcc/
* ipa-icf.c (sem_variable::merge): Do not merge an alias with
larger alignment.
gcc/testsuite/
gcc.dg/pr69990.c: New.
From-SVN: r233906
PR target/70028
* config/i386/i386.md (kmovw): Move m constraint to 2nd alternative.
(*movhi_internal): Put mask moves from and to memory separately
from moves from/to GPRs.
* gcc.target/i386/pr70028.c: New test.
From-SVN: r233904
2016-03-02 Richard Biener <rguenther@suse.de>
* genmatch.c (dt_node::gen_kids): Fix match code-gen for embedded
GENERIC expressions in GIMPLE.
From-SVN: r233902
PR c/67854
* gimplify.c (gimplify_va_arg_expr): Use expanded location for the
"is promoted to" warning.
* gcc.dg/pr67854.c: New test.
From-SVN: r233891
2016-03-01 Vladimir Makarov <vmakarov@redhat.com>
PR middle-end/70025
* lra-constraints.c (regno_val_use_in): New.
(match_reload): Use it instead of regno_use_in.
From-SVN: r233876
PR tree-optimization/69196
* tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
Appropriately clamp the number of statements to copy when the
thread path does not traverse a loop backedge.
PR tree-optimization/69196
* gcc.dg/tree-ssa/pr69196.c: New test.
From-SVN: r233870
PR rtl-optimization/70007
* gcse.c (compute_ld_motion_mems): Tidy up and also invalidate memory
references present in REG_EQUAL notes attached to non-SET patterns.
From-SVN: r233867
PR tree-optimization/69196
* tree-ssa-threadbackward.c (fsm_find_control_statement_thread_paths):
Do count some PHIs in the thread path against the insn count. Decrease
final statement count by one as the control statement in the last
block will get removed. Remove special cased code for handling PHIs in the last block.
PR tree-optimization/69196
* gcc.dg/tree-ssa/vrp46.c: Twiddle threading params to keep it from
duplicating code and spoiling the expected output.
From-SVN: r233866
PR ada/70017
* ira.c (do_reload): Issue warning for generic stack checking here...
* reload1.c (reload): ...instead of here and streamline it.
From-SVN: r233862
2016-03-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/69983
* tree-chrec.c (eq_evolutions_p): Handle conversions, compare
types and fall back to operand_equal_p.
From-SVN: r233856
This does not work without:
https://gcc.gnu.org/ml/gcc-patches/2016-02/msg01575.html
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Revert
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/constraints.md ("jm8"): New constraint.
* config/s390/predicates.md ("const_int_8bitset_operand"): New predicate.
* config/s390/s390.md ("*setmem_long", "*setmem_long_and"): Merge
into ...
("*setmem_long<setmem_and>"): New pattern.
("*setmem_long_31z", "*setmem_long_and_31z"): Merge
into ...
("*setmem_long_31z<setmem_and>"): New pattern.
* config/s390/subst.md ("setmem_31z_subst", "setmem_and_subst"):
New substitution rules with the required attributes.
From-SVN: r233854
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Revert
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* gensupport.c (process_substs_on_one_elem): Split loop to
complete mark_operands_used_in_match_dup on all expressions in the
vector first.
(adjust_operands_numbers): Inline into process_substs_on_one_elem
and remove function.
From-SVN: r233853
After Y is never used anymore with SImode operands we can finally
disallow SImode (if != Pmode) in s390_decompose_address. In fact that
was the whole point of the patch series.
gcc/ChangeLog:
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/s390.c (s390_decompose_address): Don't accept SImode
anymore.
From-SVN: r233849
While trying to get rid of the Y constraint in the setmem patterns I
noticed that for these patterns it isn't even a problem since these
always only use the constraint with a Pmode match_operand. But while
being at it I've tried to fold some of the patterns a bit.
gcc/ChangeLog:
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/constraints.md ("jm8"): New constraint.
* config/s390/predicates.md ("const_int_8bitset_operand"): New predicate.
* config/s390/s390.md ("*setmem_long", "*setmem_long_and"): Merge
into ...
("*setmem_long<setmem_and>"): New pattern.
("*setmem_long_31z", "*setmem_long_and_31z"): Merge
into ...
("*setmem_long_31z<setmem_and>"): New pattern.
* config/s390/subst.md ("setmem_31z_subst", "setmem_and_subst"):
New substitution rules with the required attributes.
From-SVN: r233848
This finally removes the Y constraint from the vector patterns while
folding some of them using a code iterator.
gcc/ChangeLog:
2016-03-01 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/subst.md (DSI_VI): New mode iterator.
("addr_style_op_subst"): Use DSI_VI instead of DSI.
* config/s390/vector.md ("vec_set<mode>"): Move expander before
the insn definition.
("*vec_set<mode>"): Change predicate and add alternative to
support only either register or const_int operands as element
selector.
("*vec_set<mode>_plus"): New pattern to support reg + const_int
operands.
("vec_extract<mode>"): New expander.
("*vec_extract<mode>"): New insn definition supporting reg and
const_int element selectors.
("*vec_extract<mode>_plus"): New insn definition supporting
reg+const_int element selectors.
("rotl<mode>3", "ashl<mode>3", "ashr<mode>3"): Merge into the
following expander+insn definition.
("<vec_shifts_name><mode>3"): New expander.
("*<vec_shifts_name><mode>3<addr_style_op>"): New insn definition.
From-SVN: r233847
