The attached patch adds the a target specific attribute via the
new target macro TARGET_BEGIN_TRANSACTION_ATTRIBUTE to the
function begin_transaction(). S/390 uses this to set the
soft-float target attribute which is needed to fix a crash with
-m31.
As there seems to be no place in libitm to document internal macros like
USE_HTM_FASTPATH or the new macro, I've put the documentation in a
comment where the macro is used.
2016-03-03 Dominik Vogt <vogt@linux.vnet.ibm.com>
* config/s390/target.h (TARGET_BEGIN_TRANSACTION_ATTRIBUTE): Define
function attribute to disable floating point in begin_transaction() on
S/390.
* beginend.cc (begin_transaction): Use
TARGET_BEGIN_TRANSACTION_ATTRIBUTE.
From-SVN: r233929
2016-03-03 Richard Biener <rguenther@suse.de>
PR tree-optimization/55936
* tree-vrp.c (compare_name_with_value): Add use_equiv_p
parameter and guard unsafe equivalence use.
(vrp_evaluate_conditional_warnv_with_ops): Always use
safe equivalences but not via the quadratic compare_names
helper.
* gcc.dg/tree-ssa/vrp06.c: Remove XFAIL.
From-SVN: r233928
2016-03-03 Michael Collison <michael.collison@linaro.org>
PR target/70014
* config/arm/arm.md (*subsi3_carryin_const): Change predicate
for operand 1 to s_register_operand. Change predicate for operand
2 to arm_not_immediate_operand.
From-SVN: r233927
PR rtl-opt/67145
* simplify-rtx.c (simplify_plus_minus): Allow reassoc without
simplification when all args are positive non-fixed registers.
From-SVN: r233916
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
