From-SVN: r237788

From-SVN: r237784

re PR tree-optimization/71643 (internal compiler error: in redirect_eh_edge_1, at tree-eh.c:2318 after r237427)

	PR tree-optimization/71643
	* tree-ssa-tail-merge.c (find_clusters_1): Ignore basic blocks with
	EH preds.

	* tree-ssa-tail-merge.c (deps_ok_for_redirect_from_bb_to_bb): Don't
	leak a bitmap if dep_bb is NULL.

	* g++.dg/opt/pr71643.C: New test.

From-SVN: r237783

	PR tree-optimization/71631
	* tree-ssa-reassoc.c (reassociate_bb): Pass true as last argument
	to rewrite_expr_tree even if negate_result, move new_lhs var
	declaration and initialization earlier, for powi_result set afterwards
	new_lhs to lhs.  For negate_result, use new_lhs instead of tmp
	if new_lhs != lhs, and don't shadow gsi var.

	* gcc.c-torture/execute/pr71631.c: New test.

From-SVN: r237782

	* predict.c (predict_paths_leading_to, predict_paths_leading_to_edge):
	Add in_loop parameter.
	(predict_loops): Add loop guard heuristics.
	* predict.def (PRED_LOOP_GUARD): New heuristics.

	* gcc.dg/predict-11.c: New testcase.
	* gfortran.dg/predict-2.f90: New testcase.

From-SVN: r237781

	* predict.c: Include ipa-utils.h
	(tree_bb_level_prediction): Predict recursive calls.
	(tree_estimate_probability_bb): Skip inexpensive calls for call
	predictor.
	* predict.def (PRED_RECURSIVE_CALL): New.

	* gcc.dg/predict-10.c: New test.

From-SVN: r237780

From-SVN: r237779

gcc/c-common/
	* c-common.c (verify_tree) [COMPOUND_EXPR]: Fix handling on LHS of
	MODIFY_EXPR.
gcc/cp/
	* typeck.c (cp_build_modify_expr): Leave COMPOUND_EXPR on LHS.

From-SVN: r237775

[gcc]

2016-06-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/rs6000-builtin.def (BU_FLOAT128_2): New #define.
	(BU_FLOAT128_1): Likewise.
	(FABSQ): Likewise.
	(COPYSIGNQ): Likewise.
	(RS6000_BUILTIN_NANQ): Likewise.
	(RS6000_BUILTIN_NANSQ): Likewise.
	(RS6000_BUILTIN_INFQ): Likewise.
	(RS6000_BUILTIN_HUGE_VALQ): Likewise.
	* config/rs6000/rs6000.c (rs6000_fold_builtin): New prototype.
	(TARGET_FOLD_BUILTIN): New #define.
	(rs6000_builtin_mask_calculate): Add TARGET_FLOAT128 entry.
	(rs6000_invalid_builtin): Add handling for RS6000_BTM_FLOAT128.
	(rs6000_fold_builtin): New target hook implementation, handling
	folding of 128-bit NaNs and infinities.
	(rs6000_init_builtins): Initialize const_str_type_node; ensure all
	entries are filled in to avoid problems during bootstrap
	self-test; define builtins for 128-bit NaNs and infinities.
	(rs6000_opt_mask): Add entry for float128.
	* config/rs6000/rs6000.h (RS6000_BTM_FLOAT128): New #define.
	(RS6000_BTM_COMMON): Include RS6000_BTM_FLOAT128.
	(rs6000_builtin_type_index): Add RS6000_BTI_const_str.
	(const_str_type_node): New #define.
	* config/rs6000/rs6000.md (copysign<mode>3 for IEEE128): Convert
	to a define_expand that dispatches to either copysign<mode>3_soft
	or copysign<mode>3_hard.
	(copysign<mode>3_hard): Rename from copysign<mode>3.
	(copysign<mode>3_soft): New define_insn.
	* doc/extend.texi: Document new builtins.

[gcc/testsuite]

2016-06-24  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/abs128-1.c: New.
	* gcc.target/powerpc/copysign128-1.c: New.
	* gcc.target/powerpc/inf128-1.c: New.
	* gcc.target/powerpc/nan128-1.c: New.

From-SVN: r237774

	* tree.c (get_target_expr_sfinae): Handle bit-fields.
	(build_target_expr): Call mark_rvalue_use.

From-SVN: r237773

	* cfgloop.c (flow_loop_dump): Cast nit to uint64_t and print it using
	PRIu64 instead of lu.

From-SVN: r237772

	PR debug/71642
	* tree-inline.c (remap_decl): When fixing up DECL_ORIGINAL_TYPE, just
	copy the type name.

From-SVN: r237771

	PR tree-optimization/71647
	* omp-low.c (lower_rec_input_clauses): Convert
	omp_clause_aligned_alignment (c) to size_type_node for the
	last argument of __builtin_assume_aligned.

	* gcc.target/i386/pr71647.c: New test.

From-SVN: r237769

There are extensions to x86-64 psABI:

https://groups.google.com/forum/#!topic/x86-64-abi/de5_KnLHxtI

and i386 psABI:

https://groups.google.com/forum/#!topic/ia32-abi/awsRSvJOJfs

to call tls_get_addr via GOT.  X86 assembler and linker in binutils 2.27
implemented

call *__tls_get_addr@GOTPCREL(%rip)

in 64-bit and

call *___tls_get_addr@GOT(%reg)

in 32-bit to access global and local thread loal variables in shared
library.  We check if 32-bit x86 assembler and linker work with

call *___tls_get_addr@GOT(%reg)

as 32-bit and 64-bit assembler and linker are enabled togther.

In 32-bit, since any integer register except EAX, which is used to pass
parameter to ___tls_get_addr, and ESP, can be used as GOT base, a new
register class, TLS_GOTBASE_REGS, along with a new constraint, Yb, are
added.  They are used to improve register allocation for 32-bit dynamic
TLS patterns.

gcc/

	* configure.ac (calling ___tls_get_addr via GOT): New
	assembler/linker check.
	(HAVE_AS_IX86_TLS_GET_ADDR_GOT): New.  Defined to 1 if 32-bit
	assembler and linker supports calling ___tls_get_addr via GOT.
	Otherise, defined to 0.
	* config.in: Regenerated.
	* configure: Likewise.
	* config/i386/constraints.md (Yb): New constraint.
	* config/i386/i386.h (reg_class): Add TLS_GOTBASE_REGS.
	(REG_CLASS_NAMES): Likewise.
	(REG_CLASS_CONTENTS): Likewise.
	* config/i386/i386.md (*tls_global_dynamic_32_gnu): Replace
	the b constraint with the Yb constraint.  Call ___tls_get_addr
	via GOT for GNU TLS with -fno-plt if HAVE_AS_IX86_TLS_GET_ADDR_GOT
	is 1.
	(*tls_local_dynamic_base_32_gnu): Likewise.
	(*tls_global_dynamic_64_<mode>): Call _tls_get_addr via GOT for
	GNU TLS with -fno-plt if HAVE_AS_IX86_TLS_GET_ADDR_GOT is 1.
	(*tls_local_dynamic_base_64_<mode>): Likewise.

gcc/testsuite/

	* gcc.target/i386/noplt-gd-1.c: New test.
	* gcc.target/i386/noplt-gd-2.c: Likewise.
	* gcc.target/i386/noplt-gd-3.c: Likewise.
	* gcc.target/i386/noplt-ld-1.c: Likewise.
	* gcc.target/i386/noplt-ld-2.c: Likewise.
	* gcc.target/i386/noplt-ld-3.c: Likewise.
	* lib/target-supports.exp
	(check_effective_target_tls_get_addr_via_got): New.

From-SVN: r237765

From-SVN: r237764

	* analyze_brprob.py: Parse and display average number
	of loop iterations.
	* cfgloop.c (flow_loop_dump): Dump average number of loop iterations.
	* cfgloop.h: Change 'struct loop' to 'const struct loop' for a
	few functions.
	* cfgloopanal.c (expected_loop_iterations_unbounded): Set a new
	argument to true if the expected number of iterations is
	loop-based.

From-SVN: r237762

2016-06-24  Uros Bizjak  <ubizjak@gmail.com>

	* gcc.dg/vect/vect-nb-iter-ub-1.c: Remove default vector
	testsuite compile flags.
	* gcc.dg/vect/vect-nb-iter-ub-2.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-3.c: Ditto.

2016-06-24  Uros Bizjak  <ubizjak@gmail.com>

	* g++dg/vect/pr36684.cc: Add dg-do compile.
	* gcc.dg/vect/O3-pr70130.c: Remove dg-do run.
	* gcc.dg/vect/pr70021.c: Ditto.
	* gcc.dg/vect/pr70138-1.c: Ditto.
	* gcc.dg/vect/pr70138-2.c: Ditto.
	* gcc.dg/vect/pr70354-1.c: Ditto.
	* gcc.dg/vect/pr70354-2.c: Ditto.
	* gcc.dg/vect/pr71259.c: Ditto.
	* gcc.dg/vect/pr71416-1.c: Ditto.
	* gcc.dg/vect/slp-43.c: Ditto.
	* gcc.dg/vect/slp-45.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-1.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-2.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-3.c: Ditto.
	* gfortran.dg/vect/pr69980.f90: Ditto.

2016-06-24  Uros Bizjak  <ubizjak@gmail.com>

	* gcc.dg/vect/O3-pr70130.c: Include tree-vect.h and call check_vect.
	* gcc.dg/vect/bb-slp-30.c: Ditto.
	* gcc.dg/vect/costmodel/i386/costmodel-vect-33.c: Ditto.
	* gcc.dg/vect/fast-math-bb-slp-call-3.c: Ditto.
	* gcc.dg/vect/pr45902.c: Ditto.
	* gcc.dg/vect/pr48172.c: Ditto.
	* gcc.dg/vect/pr48377.c: Ditto.
	* gcc.dg/vect/pr49038.c: Ditto.
	* gcc.dg/vect/pr49771.c: Ditto.
	* gcc.dg/vect/pr52091.c: Ditto.
	* gcc.dg/vect/pr53185-2.c: Ditto.
	* gcc.dg/vect/pr56826.c: Ditto.
	* gcc.dg/vect/pr60276.c: Ditto.
	* gcc.dg/vect/pr62021.c: Ditto.
	* gcc.dg/vect/pr63530.c: Ditto.
	* gcc.dg/vect/pr65518.c: Ditto.
	* gcc.dg/vect/pr65947-1.c: Ditto.
	* gcc.dg/vect/pr65947-10.c: Ditto.
	* gcc.dg/vect/pr65947-11.c: Ditto.
	* gcc.dg/vect/pr65947-12.c: Ditto.
	* gcc.dg/vect/pr65947-13.c: Ditto.
	* gcc.dg/vect/pr65947-2.c: Ditto.
	* gcc.dg/vect/pr65947-3.c: Ditto.
	* gcc.dg/vect/pr65947-4.c: Ditto.
	* gcc.dg/vect/pr65947-5.c: Ditto.
	* gcc.dg/vect/pr65947-6.c: Ditto.
	* gcc.dg/vect/pr65947-7.c: Ditto.
	* gcc.dg/vect/pr65947-8.c: Ditto.
	* gcc.dg/vect/pr65947-9.c: Ditto.
	* gcc.dg/vect/pr71416-1.c: Ditto.
	* gcc.dg/vect/pr71439.c: Ditto.
	* gcc.dg/vect/slp-widen-mult-half.c: Ditto.
	* gcc.dg/vect/vect-bswap16.c: Ditto.
	* gcc.dg/vect/vect-bswap32.c: Ditto.
	* gcc.dg/vect/vect-bswap64.c: Ditto.
	* gcc.dg/vect/vect-live-1.c: Ditto.
	* gcc.dg/vect/vect-live-2.c: Ditto.
	* gcc.dg/vect/vect-live-3.c: Ditto.
	* gcc.dg/vect/vect-live-4.c: Ditto.
	* gcc.dg/vect/vect-live-5.c: Ditto.
	* gcc.dg/vect/vect-live-slp-1.c: Ditto.
	* gcc.dg/vect/vect-live-slp-2.c: Ditto.
	* gcc.dg/vect/vect-live-slp-3.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-1.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-2.c: Ditto.
	* gcc.dg/vect/vect-nb-iter-ub-3.c: Ditto.
	* gcc.dg/vect/vect-neg-store-1.c: Ditto.
	* gcc.dg/vect/vect-neg-store-2.c: Ditto.
	* gcc.dg/vect/vect-outer-pr69720.c: Ditto.
	* gcc.dg/vect/vect-reduc-mul_1.c: Ditto.
	* gcc.dg/vect/vect-reduc-mul_2.c: Ditto.
	* gcc.dg/vect/vect-reduc-or_1.c: Ditto.
	* gcc.dg/vect/vect-reduc-or_2.c: Ditto.
	* gcc.dg/vect/vect-widen-mult-const-s16.c: Ditto.
	* gcc.dg/vect/vect-widen-mult-const-u16.c: Ditto.
	* gcc.dg/vect/vect-widen-mult-half-u8.c: Ditto.
	* gcc.dg/vect/vect-widen-mult-half.c: Ditto.

From-SVN: r237761

	* gcc.dg/torture/float128-cmp-invalid.c (main): Use __builtin_nanq.

From-SVN: r237760

	* gcc.dg/vect/tree-vect.h (check_vect): Handle __SSE4_2__.

From-SVN: r237759

	* configure.ac (HAVE_AS_GOTOF_IN_DATA): Use $as_ix86_gas_32_opt to
	assemble for 32bit target.
	(HAVE_AS_IX86_TLSGDPLT): Use $as_ix86_gas_32_opt to assemble
	and $ld_ix86_gld_32_opt to link for 32bit target.
	(HAVE_AS_IX86_TLSLDMPLT): Ditto.
	* configure: Regenerate.

From-SVN: r237758

	* config/arm/arm.c (int_log2): Delete definition and prototype.
	(shift_op): Use exact_log2 instead of int_log2.
	(vfp3_const_double_for_fract_bits): Likewise.

From-SVN: r237757

Since non-PIC noplt works on 32-bit x86 target now with assembler/linker
support, enable non-PIC noplt tests on 32-bit x86 target.  main in
noplt-2.c and noplt-4.c are renamed to bar to avoid stack re-alignment
in main for 32-bit target, which disables tailcall optimization.

	* gcc.target/i386/noplt-1.c: Don't disable for ia32.  Scan for
	ia32 if R_386_GOT32X relocation is supported.
	* gcc.target/i386/noplt-3.c: Likewise.
	* gcc.target/i386/noplt-2.c: Likewise.
	(main): Renamed to ...
	(bar): This.
	* gcc.target/i386/noplt-4.c: Likewise.
	(main): Renamed to ...
	(bar): This.
	* gcc.target/i386/pr67400-3.c: Don't disable for ia32.
	* gcc.target/i386/pr67400-5.c: Likewise.

From-SVN: r237756

	* call.c (magic_varargs_p): Return 3 for __builtin_*_overflow_p.
	(build_over_call): For magic == 3, do no conversion only on 3rd
	argument.

	* c-c++-common/torture/builtin-arith-overflow-p-19.c: Run for C++ too.
	* g++.dg/ext/builtin-arith-overflow-2.C: New test.

From-SVN: r237755

	* internal-fn.c (expand_arith_set_overflow): New function.
	(expand_addsub_overflow, expand_neg_overflow, expand_mul_overflow):
	Use it.
	(expand_arith_overflow_result_store): Likewise.  Handle precision
	smaller than mode precision.
	* tree-vrp.c (extract_range_basic): For imag part, handle
	properly signed 1-bit precision result.
	* doc/extend.texi (__builtin_add_overflow): Document that last
	argument can't be pointer to enumerated or boolean type.
	(__builtin_add_overflow_p): Document that last argument can't
	have enumerated or boolean type.

	* c-common.c (check_builtin_function_arguments): Require last
	argument of BUILT_IN_*_OVERFLOW_P to have INTEGER_TYPE type.
	Adjust wording of diagnostics for BUILT_IN_*_OVERLFLOW
	if the last argument is pointer to enumerated or boolean type.

	* c-c++-common/builtin-arith-overflow-1.c (generic_wrong_type, f3,
	f4): Adjust expected diagnostics.
	* c-c++-common/torture/builtin-arith-overflow.h (TP): New macro.
	(T): If OVFP is defined, redefine to TP.
	* c-c++-common/torture/builtin-arith-overflow-12.c: Adjust comment.
	* c-c++-common/torture/builtin-arith-overflow-p-1.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-2.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-3.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-4.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-5.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-6.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-7.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-8.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-9.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-10.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-11.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-12.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-13.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-14.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-15.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-16.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-17.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-18.c: New test.
	* c-c++-common/torture/builtin-arith-overflow-p-19.c: New test.
	* g++.dg/ext/builtin-arith-overflow-1.C: Pass 0 instead of C
	as last argument to __builtin_add_overflow_p.

From-SVN: r237754

From-SVN: r237753

2016-06-23  François Dumont  <fdumont@gcc.gnu.org>

	* include/debug/array (array<>::swap): Fix noexcept qualificaton for
	zero-size array.

From-SVN: r237747

	* g++.dg/vect/pr33834_2.cc: Use dg-additional-options instead of
	dg-options and remove default vector testsuite compile flags.
	* g++.dg/vect/pr33860a.cc: Ditto.
	* g++.dg/vect/pr45470-a.cc: Ditto.
	* g++.dg/vect/pr45470-b.cc: Ditto.
	* g++.dg/vect/pr60896.cc: Ditto.
	* gcc.dg/vect/no-tree-pre-pr45241.c: Ditto.
	* gcc.dg/vect/pr18308.c: Ditto.
	* gcc.dg/vect/pr24049.c: Ditto.
	* gcc.dg/vect/pr33373.c: Ditto.
	* gcc.dg/vect/pr36228.c: Ditto.
	* gcc.dg/vect/pr42395.c: Ditto.
	* gcc.dg/vect/pr42604.c: Ditto.
	* gcc.dg/vect/pr46663.c: Ditto.
	* gcc.dg/vect/pr48765.c: Ditto.
	* gcc.dg/vect/pr49093.c: Ditto.
	* gcc.dg/vect/pr49352.c: Ditto.
	* gcc.dg/vect/pr52298.c: Ditto.
	* gcc.dg/vect/pr52870.c: Ditto.
	* gcc.dg/vect/pr53185.c: Ditto.
	* gcc.dg/vect/pr53773.c: Ditto.
	* gcc.dg/vect/pr56695.c: Ditto.
	* gcc.dg/vect/pr62171.c: Ditto.
	* gcc.dg/vect/pr63530.c: Ditto.
	* gcc.dg/vect/pr68339.c: Ditto.
	* gcc.dg/vect/pr71259.c: Ditto.
	* gcc.dg/vect/vect-82_64.c: Ditto.
	* gcc.dg/vect/vect-83_64.c: Ditto.
	* gcc.dg/vect/vect-debug-pr41926.c: Ditto.
	* gcc.dg/vect/vect-shift-2-big-array.c: Ditto.
	* gcc.dg/vect/vect-shift-2.c: Ditto.
	* gfortran.dg/vect/fast-math-mgrid-resid.f: Ditto.
	* gfortran.dg/vect/pr39318.f90: Ditto.
	* gfortran.dg/vect/pr45714-a.f: Ditto.
	* gfortran.dg/vect/pr45714-b.f: Ditto.
	* gfortran.dg/vect/pr46213.f90: Ditto.

From-SVN: r237745

[gcc]
2016-06-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/predicates.md (splat_input_operand): Rework.
	Don't allow constants, since the insns that use this predicate
	don't support constants.  Constants are handled by other insns
	that are created via combine.  During and after register
	allocation, only allow indexed or indirect addresses, and not
	general addresses.  Only allow modes supported by the hardware.
	* config/rs6000/rs6000.c (xxsplitb_constant_p): Update usage
	comment.  Move check for using VSPLTIS<x> to a common location,
	instead of doing it in two different places.

[gcc/testsuite]
2016-06-23  Michael Meissner  <meissner@linux.vnet.ibm.com>
	    Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* gcc.target/powerpc/p9-splat-5.c: New test.


Co-Authored-By: Bill Schmidt <wschmidt@linux.vnet.ibm.com>

From-SVN: r237743

driver-i386.c (host_detect_local_cpu): Set PROCESSOR_PENTIUMPRO for signature_CENTAUR_ebx family >= 9.

	* config/i386/driver-i386.c (host_detect_local_cpu): Set
	PROCESSOR_PENTIUMPRO for signature_CENTAUR_ebx family >= 9.
	<case PROCESSOR_PENTIMUMPRO>: Pass c7 or nehemiah for
	signature_CENTAUR_ebx.

From-SVN: r237741

re PR tree-optimization/71488 (Wrong code for vector comparisons with ivybridge and westmere targets)

	PR tree-optimization/71488
	* gcc.target/i386/i386.exp (check_effective_target_sse4): Move to ...
	* lib/target-supports.exp: ... here.
	(check_sse4_hw_available): New procedure.
	(check_effective_target_sse4_runtime): Ditto.
	* g++.dg/pr71488.C (dg-additional-options): Use -msse4 instead of
	-march=westmere for sse4_runtime targets.
	* gcc.dg/vect/vect-bool-cmp.c: Include "tree-vect.h".
	(dg-additional-options): Use for sse4_runtime targets.
	(main): Call check_vect ().
	(dg-final): Perform scan only for sse4_runtime targets.

From-SVN: r237738

From-SVN: r237737

i386 psABI has been updated to clarify that R_386_GOT32X and R_386_GOT32
relocations can be used to access GOT without base register when PIC is
disabled:

https://groups.google.com/forum/#!topic/ia32-abi/awsRSvJOJfs

32-bit x86 assembler and linker from binutils 2.26.1 and 2.27 support

call/jmp *_start@GOT
cmpl $0, bar@GOT

for both normal and IFUNC functions.  We check if 32-bit x86 assembler
and linker have the fix for:

https://sourceware.org/bugzilla/show_bug.cgi?id=20244

before accessing external function via GOT slot for -fno-plt in both PIC
and non-PIC modes.

	PR target/66232
	PR target/67400
	* configure.ac (as_ix86_tls_ldm_opt): Renamed to ...
	(as_ix86_gas_32_opt): This.
	(ld_ix86_tls_ldm_opt): Renamed to ...
	(ld_ix86_gld_32_opt): This.
	(R_386_TLS_LDM reloc): Updated.
	(R_386_GOT32X reloc): New assembler/linker check.
	(HAVE_AS_IX86_GOT32X): New.  Defined to 1 if 32-bit assembler and
	linker support "jmp *_start@GOT" and "cmpl $0, bar@GOT".  Otherise,
	defined to 0.
	* config.in: Regenerated.
	* configure: Likewise.
	* config/i386/i386.c (ix86_force_load_from_GOT_p): Return
	true if HAVE_AS_IX86_GOT32X is 1 in 32-bit mode.
	(ix86_legitimate_address_p): Allow UNSPEC_GOT for -fno-plt
	if ix86_force_load_from_GOT_p returns true.
	(ix86_print_operand_address_as): Also support UNSPEC_GOT if
	ix86_force_load_from_GOT_p returns true.
	(ix86_expand_move): Generate UNSPEC_GOT in 32-bit mode to load
	the external function address via the GOT slot.
	(ix86_nopic_noplt_attribute_p): Check both TARGET_64BIT and
	HAVE_AS_IX86_GOT32X before returning false.
	(ix86_output_call_insn): Generate "%!jmp/call\t*%p0@GOT" in
	32-bit mode if ix86_nopic_noplt_attribute_p returns true.

gcc/testsuite/

	PR target/66232
	PR target/67400
	* gcc.target/i386/pr66232-14.c: New file.
	* gcc.target/i386/pr66232-15.c: Likewise.
	* gcc.target/i386/pr66232-16.c: Likewise.
	* gcc.target/i386/pr66232-17.c: Likewise.
	* gcc.target/i386/pr67400-1.c: Don't disable for ia32.  Scan for
	ia32 if R_386_GOT32X relocation is supported.
	* gcc.target/i386/pr67400-2.c: Likewise.
	* gcc.target/i386/pr67400-3.c: Likewise.
	* gcc.target/i386/pr67400-4.c: Likewise.
	* gcc.target/i386/pr67400-6.c: Likewise.
	* gcc.target/i386/pr67400-7.c: Likewise.
	* lib/target-supports.exp (check_effective_target_got32x_reloc):
	New.

From-SVN: r237736

2016-06-23  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/48852
	* io/write.c: Cleaned up whitespace.
	(write_d, write_e, write_f, write_es, write_en): Use new helper function
	write_float_0. (write_float_0): New helper function.
	(get_precision, select_buffer, select_string, write_float_string): New
	helper functions used in remaining float writing functions. Helper function
	write_float_string now contains code for writing to kind=4 character
	internal units.
	(write_real): Modified to establish working buffers at this level and to
	use new helper functions.
	(write_real_g0): Likewise modified.
	(write_complex): Likewise modified. Gets both float strings before
	output so that final lengths can be determined which allows right
	justifying the complex number with no intervening spaces.
	* io/write_float.def (build_float_string): Renamed from previosly
	output_float, modified to use buffers passed in from higher functions,
	builds a null terminated string of the floating point value. Character
	kind=4 code eliminated.
	(write_infnan): Likewise modified to use incoming buffers and eliminate
	kind=4 related code.
	(OUTPUT_FLOAT_FMT_G): Deleted, functionality moved into FORMAT_FLOAT.
	(FORMAT_FLOAT): Renamed macro from WRITE_FLOAT. Use build_float_string.
	(get_float_string): Renamed from write_float, uses FORMAT_FLOAT macro.
	Buffer allocation removed, now at higher level.

	PR libgfortran/48852
	* gfortran.dg/char4_iunit_1.f03: Update test.
	* gfortran.dg/f2003_io_5.f03: Update test.
	* gfortran.dg/real_const_3.f90: Update test.

From-SVN: r237735

From-SVN: r237734

Add support for profiledbootstrap with autofdo. Will be useful
to get better testing coverage of autofdo.

This requires Linux perf and autofdo to be installed, only
really for x86_64 linux on Intel so far.

Profile the whole build process with perf, then convert the file,
and pass it back to the compiler in the feedback stage.

The conversion has to be done per language, as only that knows
the name of the binary. Currently we only do it for C and C++,
as the other languages don't have enough coverage during a normal
bootstrap.

For lto1 it is also disabled, because it would only be useful during a LTO
bootstrap, but right now autofdo and LTO are not working together due to
PR66229

For common backend files always the profile output of the C++ compiler
is used. In theory multiple inputs could be merged here, but so far
that is not implemented.

The method is not friendly to partial rebuilds, as only the profile
information from the current rebuild is used. So if an error
occurs it is best to clean and restart, otherwise the code
quality may be worse.

This patch is fairly large, but most of it is auto generated from
autogen in Makefile.in. for the new stage targets.

Passes profiledbootstrap and normal bootstrap on x86_64-linux.
autoprofiledbootstrap is currently not working due to
PR70427 (but it finishes with that worked around)

The autofdo'ed compiler is ~7% faster on insn-recog.i (vs ~11% for
profiledfeedback), and ~4% faster for tramp3d-v4 (vs 10% for
profiledfeedback) on a Sandy Bridge system.

gcc/lto/:

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in: Add support for autofdo (disabled for now)

gcc/cp/:

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in: Add support for autofdo.

gcc/:

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* Makefile.in: Regenerate.
	* doc/install.texi: Document autoprofiledbootstrap.

/:
2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* Makefile.def: Add autoprofiledbootstrap.
	* Makefile.tpl: Dito.
	* Makefile.in: Regenerate.

gcc/c/:

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* Make-lang.in: Add support for autofdo.

From-SVN: r237733

Extend the existing bprob and tree-prof tests to also run with autofdo.
The test runtimes are really a bit too short for autofdo, but it's
a reasonable sanity check.

This only works natively for now.

dejagnu doesn't seem to support a wrapper for unix tests, so I had
to open code running these tests.  That should be ok due to the
native run restrictions.

gcc/testsuite/:

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* g++.dg/bprob/bprob.exp: Support autofdo.
	* g++.dg/tree-prof/tree-prof.exp: dito.
	* gcc.dg/tree-prof/tree-prof.exp: dito.
	* gcc.misc-tests/bprob.exp: dito.
	* gfortran.dg/prof/prof.exp: dito.
	* lib/profopt.exp: dito.
	* lib/target-supports.exp: Check for autofdo.

From-SVN: r237732

Using autofdo is currently something difficult. It requires using the
model specific branches taken event, which differs on different CPUs.
The example shown in the manual requires a special patched version of
perf that is non standard, and also will likely not work everywhere.

This patch adds a new gcc-auto-profile script that figures out the
correct event and runs perf.

This is needed to actually make use of autofdo in a generic way
in the build system and in the test suite.

Since maintaining the script would be somewhat tedious (needs changes
every time a new CPU comes out) I auto generated it from the online
Intel event database. The script to do that is in contrib and can be
rerun.

Right now there is no test if perf works in configure. This
would vary depending on the build and target system, and since
it currently doesn't work in virtualization and needs uptodate
kernel it may often fail in common distribution build setups.

So far the script is not installed.

gcc/:
2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* config/i386/gcc-auto-profile: New file.

contrib/:

2016-06-23  Andi Kleen  <ak@linux.intel.com>

	* gen_autofdo_event.py: New file to regenerate
	gcc-auto-profile.

From-SVN: r237731

re PR middle-end/71619 (ICE: in predict_loops, at predict.c:1772 with --param=max-predicted-iterations=0)

Fix PR middle-end/71619

	PR middle-end/71619
	* predict.c (predict_loops): Revert the hunk that was removed
	in r237103.
	* gcc.dg/pr71619.c: New test.

From-SVN: r237730

2016-06-23  Jakub Sejdak  <jakub.sejdak@phoesys.com>

   * config.host: Add suport for arm*-*-phoenix* targets.

From-SVN: r237729

2016-06-23  Jakub Sejdak  <jakub.sejdak@phoesys.com>

	* config.gcc: Add support for arm*-*-phoenix* targets.
	* config/arm/t-phoenix: New.
	* config/phoenix.h: New.

From-SVN: r237728