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882 Commits

Author SHA1 Message Date
Cupertino Miranda 62440b4f0e [ARC] Fix PIE. 
gcc/
2016-12-05  Cupertino Miranda  <cmiranda@synopsys.com>

	* config/arc/arc.h (STARTFILE_SPEC): Use default linux specs.
	(ENDFILE_SPEC): Likewise.

libgcc/
2016-12-05  Cupertino Miranda  <cmiranda@synopsys.com>

	* config.host (arc*-*-linux-uclibc*): Use default extra
	objects. Include linux-android header.
	* config/arc/crti.S (_init): Declare symbol as function.
	(_fini): Likewise.

From-SVN: r243245
 2016-12-05 12:16:52 +01:00
Thomas Koenig 31cfd83286 re PR libfortran/78379 (Processor-specific versions for matmul) 
2016-12-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

        PR fortran/78379
        * config/i386/cpuinfo.c:  Move denums for processor vendors,
        processor type, processor subtypes and declaration of
        struct __processor_model into
        * config/i386/cpuinfo.h:  New header file.
        * Makefile.am:  Add dependence of m4/matmul_internal_m4 to
        mamtul files..
        * Makefile.in:  Regenerated.
        * acinclude.m4:  Check for AVX, AVX2 and AVX512F.
        * config.h.in:  Add HAVE_AVX, HAVE_AVX2 and HAVE_AVX512F.
        * configure:  Regenerated.
        * configure.ac:  Use checks for AVX, AVX2 and AVX_512F.
        * m4/matmul_internal.m4:  New file. working part of matmul.m4.
        * m4/matmul.m4:  Implement architecture-specific switching
        for AVX, AVX2 and AVX512F by including matmul_internal.m4
        multiple times.
        * generated/matmul_c10.c: Regenerated.
        * generated/matmul_c16.c: Regenerated.
        * generated/matmul_c4.c: Regenerated.
        * generated/matmul_c8.c: Regenerated.
        * generated/matmul_i1.c: Regenerated.
        * generated/matmul_i16.c: Regenerated.
        * generated/matmul_i2.c: Regenerated.
        * generated/matmul_i4.c: Regenerated.
        * generated/matmul_i8.c: Regenerated.
        * generated/matmul_r10.c: Regenerated.
        * generated/matmul_r16.c: Regenerated.
        * generated/matmul_r4.c: Regenerated.
        * generated/matmul_r8.c: Regenerated.

From-SVN: r243219
 2016-12-03 09:44:35 +00:00
Andre Vieira c92e08e3d7 ARMv8-M Security Extension's cmse_nonsecure_call: use __gnu_cmse_nonsecure_call 
gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/arm.c (detect_cmse_nonsecure_call): New.
	(cmse_nonsecure_call_clear_caller_saved): New.
	(arm_reorg): Use cmse_nonsecure_call_clear_caller_saved.
	(arm_function_ok_for_sibcall): Disable sibcalls for
	cmse_nonsecure_call.
	* config/arm/arm-protos.h (detect_cmse_nonsecure_call): New.
	* config/arm/arm.md (call): Handle cmse_nonsecure_entry.
	(call_value): Likewise.
	(nonsecure_call_internal): New.
	(nonsecure_call_value_internal): New.
	* config/arm/thumb1.md (*nonsecure_call_reg_thumb1_v5): New.
	(*nonsecure_call_value_reg_thumb1_v5): New.
	* config/arm/thumb2.md (*nonsecure_call_reg_thumb2): New.
	(*nonsecure_call_value_reg_thumb2): New.
	* config/arm/unspecs.md (UNSPEC_NONSECURE_MEM): New.

    libgcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	       Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/cmse_nonsecure_call.S: New.
	* config/arm/t-arm: Compile cmse_nonsecure_call.S

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
		Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse.exp: Run tests in mainline dir.
	* gcc.target/arm/cmse/cmse-9.c: Added some extra tests.
	* gcc.target/arm/cmse/cmse-14.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-4.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-5.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-6.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-7.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-8.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-9.c: New.
	* gcc.target/arm/cmse/baseline/bitfield-and-union-1.c: New.
	* gcc.target/arm/cmse/baseline/cmse-11.c: New.
	* gcc.target/arm/cmse/baseline/cmse-13.c: New.
	* gcc.target/arm/cmse/baseline/cmse-6.c: New.
	* gcc.target/arm/cmse/baseline/union-1.c: New.
	* gcc.target/arm/cmse/baseline/union-2.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-4.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-5.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-6.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-7.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-8.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-9.c: New.
	* gcc.target/arm/cmse/mainline/bitfield-and-union-1.c: New.
	* gcc.target/arm/cmse/mainline/union-1.c: New.
	* gcc.target/arm/cmse/mainline/union-2.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/hard-sp/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/hard/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/soft/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/softfp-sp/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/softfp-sp/cmse-8.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-13.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-7.c: New.
	* gcc.target/arm/cmse/mainline/softfp/cmse-8.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243192
 2016-12-02 15:33:26 +00:00
Andre Vieira de7b572345 Add support for ARMv8-M's Secure Extensions flag and intrinsics 
gcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	        Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config.gcc (extra_headers): Added arm_cmse.h.
	* config/arm/arm-arches.def (ARM_ARCH):
	(armv8-m): Add FL2_CMSE.
	(armv8-m.main): Likewise.
	(armv8-m.main+dsp): Likewise.
	* config/arm/arm-c.c
	(arm_cpu_builtins): Added __ARM_FEATURE_CMSE macro.
	* config/arm/arm-flags.h: Define FL2_CMSE.
	* config/arm.c (arm_arch_cmse): New.
	(arm_option_override): New error for unsupported cmse target.
	* config/arm/arm.h (arm_arch_cmse): New.
	* config/arm/arm.opt (mcmse): New.
	* config/arm/arm_cmse.h: New file.
	* doc/invoke.texi (ARM Options): Add -mcmse.
	* doc/sourcebuild.texi (arm_cmse_ok): Add new effective target.
	* doc/extend.texi: Add ARMv8-M Security Extensions entry.

    gcc/testsuite/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	        Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* gcc.target/arm/cmse/cmse.exp: New.
	* gcc.target/arm/cmse/cmse-1.c: New.
	* gcc.target/arm/cmse/cmse-12.c: New.
	* lib/target-supports.exp
	(check_effective_target_arm_cmse_ok): New.

    libgcc/ChangeLog:
    2016-12-02  Andre Vieira  <andre.simoesdiasvieira@arm.com>
	    Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/arm/t-arm (HAVE_CMSE): New.
	* config/arm/cmse.c: New.


Co-Authored-By: Thomas Preud'homme <thomas.preudhomme@arm.com>

From-SVN: r243187
 2016-12-02 15:22:43 +00:00
Thomas Petazzoni b3a5bff4d7 re PR target/74748 (libgcc_s.so.1 isn't created correctly for Blackfin FDPIC) 
PR gcc/74748
	* libgcc/config/bfin/libgcc-glibc.ver, libgcc/config/bfin/t-linux:
	use generic linker version information on Blackfin.

2016-11-27  Iain Sandoe  <iain@codesourcery.com>

From-SVN: r242934
 2016-11-28 14:30:40 -07:00
Thomas Petazzoni 7a0d2bce7f re PR target/74748 (libgcc_s.so.1 isn't created correctly for Blackfin FDPIC) 
PR gcc/74748
	* libgcc/mkmap-symver.awk: add support for skip_underscore

From-SVN: r242933
 2016-11-28 14:27:47 -07:00
Iain Sandoe b410cf1dc0 [Darwin] fix PR67710 by updating 'as' specs to handle newer assembler versions. 
A/ Newer versions of ld64 check the min_version command, and newer versions of
   the system assembler inserts this in response to "-mmacosx-version-min=" on
   the assembler line. Unless one makes sensible versions, some object is bound
   to conflict.

B/ Additionally, there's a difference in behaviour between "as" and "ld" when
   presented with xx.yy.zz (ld truncates to xx.yy, as doesn't); net result is
   that one needs to pass a truncated version to "as".

So (if the assembler supports minversion commands)
(a) provide a truncated minversion (as asm_macosx_version_min, which is a
    driver-only var).
(b) pass this to "as"
(c) Update tests to determine 'HAVE_AS_MMACOSX_VERSION_MIN_OPTION'
    (Rainer's patch)
(d) For some reason the testcases are "run" (it's not obvious they need to be,
    they are checking compile-time issues)
  - anyway, to preserve the status quo, I've left them as exec.  However, the
    minimum version that can be code-gened for is target-dependent (there are no
    released x86 versions before 10.4, for example).  To avoid conflicts where
    the "as" is assuming some minimum, I've set the testversion to 10.5 (which
    is supported by all the archs we have)
(e) We need to ensure that libgcc and crts are generated with a sufficiently
    old minversion not to conflict.

gcc/

2016-11-27  Iain Sandoe  <iain@codesourcery.com>
	    Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR target/67710
	* config.in: Regenerate
	* config/darwin-driver.c (darwin_driver_init): Emit a version string
	for the assembler.
	* config/darwin.h(ASM_MMACOSX_VERSION_MIN_SPEC): New, new tests.
	* config/darwin.opt(asm_macosx_version_min): New.
	* config/i386/darwin.h: Handle ASM_MMACOSX_VERSION_MIN_SPEC.
	* configure: Regenerate
	* configure.ac: Check for mmacosx-version-min handling.

gcc/testsuite/

2016-11-27  Iain Sandoe  <iain@codesourcery.com>
	    Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
	    Dominique d'Humieres  <dominiq@lps.ens.fr>

	PR target/67710
	*  gcc.dg/darwin-minversion-1.c: Update min version check.
	*  gcc.dg/darwin-minversion-2.c: Likewise.
	*  gcc.dg/darwin-minversion-3.c: Likewise.

libgcc/

2016-11-27  Iain Sandoe  <iain@codesourcery.com>
	    Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	PR target/67710
	*  config/t-darwin: Default builds to 10.5 codegen.


Co-Authored-By: Dominique d'Humieres <dominiq@lps.ens.fr>
Co-Authored-By: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>

From-SVN: r242898
 2016-11-27 15:07:22 +00:00
James Greenhalgh 2e5f8203d2 [Patch libgcc AArch64 12/17] Enable hfmode soft-float conversions and truncations 
gcc/

	* config/aarch64/aarch64-c.c (aarch64_scalar_mode_supported_p): New.
	(TARGET_SCALAR_MODE_SUPPORTED_P): Define.

libgcc/

	* config/aarch64/sfp-machine.h (_FP_NANFRAC_H): Define.
	(_FP_NANSIGN_H): Likewise.
	* config/aarch64/t-softfp (softfp_extensions): Add hftf.
	(softfp_truncations): Add tfhf.
	(softfp_extras): Add required conversion functions.

From-SVN: r242844
 2016-11-24 18:16:55 +00:00
James Greenhalgh bea64ca303 [Patch 15/17 libgcc ARM] Add double to half conversions. 
libgcc/

	* config/arm/fp16.c (binary64): New.
	(__gnu_d2h_internal): New.
	(__gnu_d2h_ieee): New.
	(__gnu_d2h_alternative): New.



Co-Authored-By: Matthew Wahab <matthew.wahab@arm.com>

From-SVN: r242782
 2016-11-23 17:31:25 +00:00
James Greenhalgh 8630cadbc5 [Patch 14/17] [libgcc, ARM] Generalise float-to-half conversion function. 
libgcc/

	* config/arm/fp16.c (struct format): New.
	(binary32): New.
	(__gnu_float2h_internal): New.  Body moved from
	__gnu_f2h_internal and generalize.
	(_gnu_f2h_internal): Move body to function __gnu_float2h_internal.
	Call it with binary32.



Co-Authored-By: Matthew Wahab <matthew.wahab@arm.com>

From-SVN: r242781
 2016-11-23 17:30:02 +00:00
James Greenhalgh 5823ef2335 [Patch libgcc 9/17] Update soft-fp from glibc 
libgcc/

	* soft-fp/extendhftf2.c: New.
	* soft-fp/fixhfti.c: Likewise.
	* soft-fp/fixunshfti.c: Likewise.
	* soft-fp/floattihf.c: Likewise.
	* soft-fp/floatuntihf.c: Likewise.
	* soft-fp/half.h: Likewise.
	* soft-fp/trunctfhf2.c: Likewise.

From-SVN: r242779
 2016-11-23 17:27:27 +00:00
Marc Glisse 62a7df9f59 Protect __TMC_END__ - __TMC_LIST__ == 0 
2016-11-20  Marc Glisse  <marc.glisse@inria.fr>

        PR libgcc/77813
        * crtstuff.c (deregister_tm_clones, register_tm_clones): Hide
        __TMC_END__ behind a passthrough asm.

From-SVN: r242635
 2016-11-20 13:35:27 +00:00
Walter Lee 7a384912f9 TILEPro: force gcc to link against libgcc.a when creating shared 
libraries.

        * config.host (tilepro*-*-linux*): Add t-slibgcc-libgcc.

From-SVN: r242615
 2016-11-19 02:28:00 +00:00
H.J. Lu 9775c1a5ea Add avx5124vnniw/avx5124fmaps to target attributes 
gcc/

2016-11-17  Andrew Senkevich <andrew.senkevich@intel.com>

	* config/i386/i386.c (processor_features): Add F_AVX5124VNNIW,
	F_AVX5124FMAPS.
	(isa_names_table): Handle new features.

gcc/testsuite/

2016-11-17  Andrew Senkevich <andrew.senkevich@intel.com>

	* gcc.target/i386/builtin_target.c: Handle new "avx5124vnniw",
	"avx5124fmaps".
	* gcc.target/i386/funcspec-56.inc: Test new attributes.

libgcc/

2016-11-17  Andrew Senkevich <andrew.senkevich@intel.com>

	* config/i386/cpuinfo.c (processor_features): Add
	FEATURE_AVX5124VNNIW, FEATURE_AVX5124FMAPS.

From-SVN: r242570
 2016-11-17 14:18:23 -08:00
Claudiu Zissulescu 48c842ab84 [ARC][libgcc] Add support for QuarkSE processor. 
libgcc/
2016-11-17  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/dp-hack.h (ARC_OPTFPE): Define.
	(__ARC_NORM__): Use instead ARC_OPTFPE.
	* config/arc/fp-hack.h: Likewise.
	* config/arc/lib1funcs.S (ARC_OPTFPE): Define.
	(__ARC_MPY__): Use it insetead of __ARC700__ and __HS__.

From-SVN: r242547
 2016-11-17 14:43:43 +01:00
Alexander Monakov 5012919d0b nvptx backend prerequisites for OpenMP offloading 
gcc/
	* config/nvptx/mkoffload.c (main): Check that either OpenACC or OpenMP
	is selected.  Pass -mgomp to offload compiler in OpenMP case.
	* config/nvptx/nvptx-protos.h (nvptx_shuffle_kind): Move enum
	declaration from nvptx.c.
	(nvptx_gen_shuffle): Declare.
	(nvptx_output_set_softstack): Declare.
	* config/nvptx/nvptx.c (nvptx_shuffle_kind): Move to nvptx-protos.h.
	(need_softstack_decl): New variable.
	(need_unisimt_decl): New variable.
	(diagnose_openacc_conflict): New.  Use it...
	(nvptx_option_override): ...here.  Handle TARGET_GOMP.
	(nvptx_encode_section_info): Handle "shared" attribute.
	(write_as_kernel): Restrict to OpenACC target regions.
	(init_softstack_frame): New.
	(nvptx_init_unisimt_predicate): New.
	(write_omp_entry): New.  Use it...
	(nvptx_declare_function_name): ...here to emit OpenMP target region
	entrypoints.  Handle TARGET_SOFT_STACK.  Call
	nvptx_init_unisimt_predicate.
	(nvptx_output_set_softstack): New.
	(nvptx_get_drap_rtx): Return %argp as the DRAP if needed.
	(nvptx_gen_shuffle): Export.
	(nvptx_output_call_insn): Handle COND_EXEC patterns.  Emit instruction
	predicate.
	(nvptx_print_operand): Fix handling of instruction predicates.
	(nvptx_get_unisimt_master): New helper function.
	(nvptx_get_unisimt_predicate): Ditto.
	(nvptx_call_insn_is_syscall_p): Ditto.
	(nvptx_unisimt_handle_set): Ditto.
	(nvptx_reorg_uniform_simt): New.  Transform code for -muniform-simt.
	(nvptx_reorg): Call nvptx_reorg_uniform_simt.
	(nvptx_handle_shared_attribute): New.  Use it...
	(nvptx_attribute_table): ... here (new entry).
	(nvptx_record_offload_symbol): Handle NULL attributes.
	(nvptx_file_end): Handle need_softstack_decl and need_unisimt_decl.
	(nvptx_simt_vf): New.
	(TARGET_SIMT_VF): Define.
	* config/nvptx/nvptx.h (TARGET_CPU_CPP_BUILTINS): Define
	__nvptx_softstack or __nvptx_unisimt__ when -msoft-stack, or resp.
	-muniform-simt option is active.
	(STACK_SIZE_MODE): Define.
	(FIXED_REGISTERS): Adjust.
	(SOFTSTACK_SLOT_REGNUM): New.
	(SOFTSTACK_PREV_REGNUM): New.
	(REGISTER_NAMES): Adjust.
	(struct machine_function): New fields.
	* config/nvptx/nvptx.md (UNSPEC_SET_SOFTSTACK): New.
	(UNSPEC_VOTE_BALLOT): Ditto.
	(UNSPEC_LANEID): Ditto.
	(UNSPECV_NOUNROLL): Ditto.
	(atomic): New attribute.
	(predicable): New attribute.  Generate predicated forms via
	define_cond_exec.
	(br_true): Mark as not predicable.
	(br_false): Ditto.
	(br_true_uni): Ditto.
	(br_false_uni): Ditto.
	(return): Ditto.
	(trap_if_true): Ditto.
	(trap_if_false): Ditto.
	(nvptx_fork): Ditto.
	(nvptx_forked): Ditto.
	(nvptx_joining): Ditto.
	(nvptx_join): Ditto.
	(nvptx_barsync): Ditto.
	(epilogue): Emit stack restore if TARGET_SOFT_STACK.
	(allocate_stack): Implement for TARGET_SOFT_STACK.  Remove unused code.
	(allocate_stack_<mode>): Remove unused pattern.
	(set_softstack_insn): New pattern.
	(restore_stack_block): Handle for TARGET_SOFT_STACK.
	(nvptx_vote_ballot): New pattern.
	(omp_simt_lane): Ditto.
	(omp_simt_last_lane): Ditto.
	(omp_simt_ordered): Ditto.
	(omp_simt_vote_any): Ditto.
	(omp_simt_xchg_bfly): Ditto.
	(omp_simt_xchg_idx): Ditto.
	(nvptx_nounroll): Ditto.
	(atomic_compare_and_swap<mode>_1): Mark with atomic attribute.
	(atomic_exchange<mode>): Ditto.
	(atomic_fetch_add<mode>): Ditto.
	(atomic_fetch_addsf): Ditto.
	(atomic_fetch_<logic><mode>): Ditto.
	* config/nvptx/nvptx.opt: (msoft-stack): New option.
	(muniform-simt): Ditto.
	(mgomp): Ditto.
	* config/nvptx/t-nvptx (MULTILIB_OPTIONS): New.
	* doc/extend.texi (Nvidia PTX Variable Attributes): New section.
	* doc/invoke.texi (msoft-stack): Document.
	(muniform-simt): Document
	(mgomp): Document.
	* doc/tm.texi: Regenerate.
	* doc/tm.texi.in: (TARGET_SIMT_VF): New hook.
	* target.def: Define it.
	* target-insns.def (omp_simt_lane): New.
	(omp_simt_last_lane): New.
	(omp_simt_ordered): New.
	(omp_simt_vote_any): New.
	(omp_simt_xchg_bfly): New.
	(omp_simt_xchg_idx): New.

libgcc/
	* config/nvptx/crt0.c (__main): Setup __nvptx_stacks and __nvptx_uni.
	* config/nvptx/mgomp.c: New file.
	* config/nvptx/t-nvptx: Add mgomp.c

gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_alloca): Use a
	compile test.
	* gcc.target/nvptx/softstack.c: New test.
	* gcc.target/nvptx/decl-shared.c: New test.
	* gcc.target/nvptx/decl-shared-init.c: New test.

From-SVN: r242503
 2016-11-16 20:17:00 +03:00
Waldemar Brodkorb 00178b98eb re PR libgcc/68468 (frv/bfin FDPIC toolchain build error) 
PR libgcc/68468
	* unwind-dw2-fde-dip.c: Fix build on FDPIC targets.

From-SVN: r242468
 2016-11-16 08:01:56 +01:00
Claudiu Zissulescu d64af69fd5 [ARC] [libgcc] Fix defines 
libgcc/
2016-11-15  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/lib1funcs.S (__mulsi3): Use feature defines instead
	of checking for cpus.
	(__umulsidi3, __umulsi3_highpart, __udivmodsi4, __divsi3)
	(__modsi3, __clzsi2): Likewise.

From-SVN: r242428
 2016-11-15 16:42:17 +01:00
Szabolcs Nagy 9d8f95deca [i386][musl] Add cpuinfo to static libgcc only on *-musl* 
The __cpu_indicator_init and __cpu_model symbols are not safe to use
from shared libgcc_s.so from ifunc resolvers, so since gcc-6, only
the definitions from static libgcc.a are used, however the symbols
are kept in libgcc_s as well for backward compatibility (with
appropriate symbol version).  On targets without such backward
compatibility concern add cpuinfo to the static library only (this
avoids running the ctor, reduces libgcc_s size and elf abi concerns
about the versioned symbols).

libgcc/
2016-11-11  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* config.host (i[3456]86-*-musl*, x86_64-*-musl*): Use
	i386/t-cpuinfo-static instead of i386/t-cpuinfo.
	* config/i386/t-cpuinfo-static: New.

From-SVN: r242268
 2016-11-11 17:31:07 +00:00
Martin Liska 7d29f8e3dc Make direct emission of time profiler counter 
* libgcov-profiler.c (__gcov_time_profiler): Remove.
	(__gcov_time_profiler_atomic): Likewise.
	* profile.c (instrument_values): Fix coding style.
	(branch_prob): Use renamed function.
	* tree-profile.c (init_ic_make_global_vars): Likewise.
	(gimple_init_edge_profiler): Rename to
	gimple_init_gcov_profiler.
	tree_time_profiler_counter variable declaration.
	(gimple_gen_time_profiler): Rewrite to do a direct gimple code
	emission.
	* value-prof.h: Remove an argument.
	* gcc.dg/no_profile_instrument_function-attr-1.c: Update scanned
	output.
	* gcc.dg/tree-prof/time-profiler-3.c: New test.

From-SVN: r241821
 2016-11-03 15:24:22 +00:00
Bernd Edlinger 5de3e2d862 re PR libgcc/78067 (libgcc2 calls count_leading_zero with 0) 
2016-11-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR libgcc/78067
        * libgcc2.c (__floatdisf, __floatdidf): Avoid undefined results from
        count_leading_zeros.

testsuite:
2016-11-03  Bernd Edlinger  <bernd.edlinger@hotmail.de>

        PR libgcc/78067
        * gcc.dg/torture/fp-int-convert.h: Add more conversion tests.

From-SVN: r241817
 2016-11-03 12:52:19 +00:00
Uros Bizjak 183624479f Makefile.in (LIB2_DIVMOD_FUNCS): Add _divmoddi4. 
* Makefile.in (LIB2_DIVMOD_FUNCS): Add _divmoddi4.
	* libgcc2.c (__divmoddi4): New function.
	* libgcc2.h (__divmoddi4): Declare.
	* libgcc-std.ver.in (GCC_7.0.0): New. Add __PFX_divmoddi4
	and __PFX_divmodti4.

From-SVN: r241804
 2016-11-02 23:23:13 +01:00
Florian Weimer 331075711a PR libgcc/78064: Add missing include directive to unwind-c.c 
PR libgcc/78064
	* unwind-c.c: Include auto-target.h.

From-SVN: r241491
 2016-10-24 20:25:09 +02:00
John David Anglin 4c6d7494fc pa64-hpux-lib.h: New file. 
libgcc/
	* config/pa/pa64-hpux-lib.h: New file.  
	(EH_FRAME_SECTION_NAME): Rename to __LIBGCC_EH_FRAME_SECTION_NAME__.
	(DTORS_SECTION_ASM_OP): Rename to __LIBGCC_DTORS_SECTION_ASM_OP__.
	* config.host (tm_file): Add pa/pa64-hpux-lib.h to tm_file on
	hppa*64*-*-hpux11*.
gcc/
	* config/pa/pa64-hpux.h (PA_INIT_FRAME_DUMMY_ASM_OP): Move to
	config/pa/pa64-hpux-lib.h.
	(PA_CRTBEGIN_HACK): Likewise.
	(DTOR_LIST_BEGIN): Likewise.

From-SVN: r241356
 2016-10-19 22:52:21 +00:00
Max Filippov 2a26adf1d8 xtensa: don't use unwind-dw2-fde-dip with elf targets 
Define LIB2ADDEH_XTENSA_UNWIND_DW2_FDE to unwind-dw2-fde.c in
xtensa/t-elf and to unwind-dw2-fde-dip.c in xtensa/t-linux and use
LIB2ADDEH_XTENSA_UNWIND_DW2_FDE in LIB2ADDEH definition.

This fixes build for elf target with windowed xtensa core that currently
breaks with the following error message:
    
  unwind-dw2-fde-dip.c:36:40: fatal error: elf.h: No such file or directory

2016-10-18  Max Filippov  <jcmvbkbc@gmail.com>
libgcc/
	* config/xtensa/t-elf (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
	definition.
	* config/xtensa/t-linux (LIB2ADDEH_XTENSA_UNWIND_DW2_FDE): New
	definition.
	* config/xtensa/t-windowed (LIB2ADDEH): Use
	LIB2ADDEH_XTENSA_UNWIND_DW2_FDE defined by either xtensa/t-elf
	or xtensa/t-linux.

From-SVN: r241313
 2016-10-18 19:12:19 +00:00
Ding-Kai Chen 66192aa129 xtensa: add HW FPU sequences for DIV/SQRT/RECIP/RSQRT 
Use new FPU instruction sequences documented in the ISA book to
implement __divsf3, __divdf3, __recipsf2, __recipdf2, __rsqrtsf2,
__rsqrtdf2 and __ieee754_sqrtf and __ieee754_sqrt.

2016-10-18  Ding-Kai Chen  <dkchen@cadence.com>
libgcc/
	* config/xtensa/ieee754-df.S (__recipdf2, __rsqrtdf2,
	__ieee754_sqrt): New functions.
	(__divdf3): Add implementation with new FPU instructions under
	#if XCHAL_HAVE_DFP_DIV.
	* config/xtensa/ieee754-sf.S (__recipsf2, __rsqrtsf2,
	__ieee754_sqrtf): New functions.
	(__divsf3): Add implementation with new FPU instructions under
	#if XCHAL_HAVE_FP_DIV.
	* config/xtensa/t-xtensa (LIB1ASMFUNCS): Add _sqrtf, _recipsf2
	_rsqrtsf2, _sqrt, _recipdf2 and _rsqrtdf2.

From-SVN: r241312
 2016-10-18 19:06:33 +00:00
Thomas Preud'homme 4d0cdd0ce6 Move MEMMODEL_* from coretypes.h to memmodel.h 
2016-10-13  Thomas Preud'homme  <thomas.preudhomme@arm.com>

    gcc/
    * coretypes.h: Move MEMMODEL_* macros and enum memmodel definition
    into ...
    * memmodel.h: This file.
    * alias.c, asan.c, auto-inc-dec.c, bb-reorder.c, bt-load.c,
      caller-save.c, calls.c, ccmp.c, cfgbuild.c, cfgcleanup.c,
      cfgexpand.c, cfgloopanal.c, cfgrtl.c, cilk-common.c, combine.c,
      combine-stack-adj.c, common/config/aarch64/aarch64-common.c,
      common/config/arm/arm-common.c, common/config/bfin/bfin-common.c,
      common/config/c6x/c6x-common.c, common/config/i386/i386-common.c,
      common/config/ia64/ia64-common.c, common/config/nvptx/nvptx-common.c,
      compare-elim.c, config/aarch64/aarch64-builtins.c,
      config/aarch64/aarch64-c.c, config/aarch64/cortex-a57-fma-steering.c,
      config/arc/arc.c, config/arc/arc-c.c, config/arm/arm-builtins.c,
      config/arm/arm-c.c, config/avr/avr.c, config/avr/avr-c.c,
      config/avr/avr-log.c, config/bfin/bfin.c, config/c6x/c6x.c,
      config/cr16/cr16.c, config/cris/cris.c, config/darwin-c.c,
      config/darwin.c, config/epiphany/epiphany.c,
      config/epiphany/mode-switch-use.c,
      config/epiphany/resolve-sw-modes.c, config/fr30/fr30.c,
      config/frv/frv.c, config/ft32/ft32.c, config/h8300/h8300.c,
      config/i386/i386-c.c, config/i386/winnt.c, config/iq2000/iq2000.c,
      config/lm32/lm32.c, config/m32c/m32c.c, config/m32r/m32r.c,
      config/m68k/m68k.c, config/mcore/mcore.c,
      config/microblaze/microblaze.c, config/mmix/mmix.c,
      config/mn10300/mn10300.c, config/moxie/moxie.c,
      config/msp430/msp430.c, config/nds32/nds32-cost.c,
      config/nds32/nds32-intrinsic.c, config/nds32/nds32-md-auxiliary.c,
      config/nds32/nds32-memory-manipulation.c,
      config/nds32/nds32-predicates.c, config/nds32/nds32.c,
      config/nios2/nios2.c, config/nvptx/nvptx.c, config/pa/pa.c,
      config/pdp11/pdp11.c, config/rl78/rl78.c, config/rs6000/rs6000-c.c,
      config/rx/rx.c, config/s390/s390-c.c, config/s390/s390.c,
      config/sh/sh.c, config/sh/sh-c.c, config/sh/sh-mem.cc,
      config/sh/sh_treg_combine.cc, config/sol2.c, config/spu/spu.c,
      config/stormy16/stormy16.c, config/tilegx/tilegx.c,
      config/tilepro/tilepro.c, config/v850/v850.c, config/vax/vax.c,
      config/visium/visium.c, config/vms/vms-c.c, config/xtensa/xtensa.c,
      coverage.c, cppbuiltin.c, cprop.c, cse.c, cselib.c, dbxout.c, dce.c,
      df-core.c, df-problems.c, df-scan.c, dojump.c, dse.c, dwarf2asm.c,
      dwarf2cfi.c, dwarf2out.c, emit-rtl.c, except.c, explow.c, expmed.c,
      expr.c, final.c, fold-const.c, function.c, fwprop.c, gcse.c,
      ggc-page.c, haifa-sched.c, hsa-brig.c, hsa-gen.c, hw-doloop.c,
      ifcvt.c, init-regs.c, internal-fn.c, ira-build.c, ira-color.c,
      ira-conflicts.c, ira-costs.c, ira-emit.c, ira-lives.c, ira.c, jump.c,
      loop-doloop.c, loop-invariant.c, loop-iv.c, loop-unroll.c,
      lower-subreg.c, lra.c, lra-assigns.c, lra-coalesce.c,
      lra-constraints.c, lra-eliminations.c, lra-lives.c, lra-remat.c,
      lra-spills.c, mode-switching.c, modulo-sched.c, omp-low.c, passes.c,
      postreload-gcse.c, postreload.c, predict.c, print-rtl-function.c,
      recog.c, ree.c, reg-stack.c, regcprop.c, reginfo.c, regrename.c,
      reload.c, reload1.c, reorg.c, resource.c, rtl-chkp.c, rtl-tests.c,
      rtlanal.c, rtlhooks.c, sched-deps.c, sched-rgn.c, sdbout.c,
      sel-sched-ir.c, sel-sched.c, shrink-wrap.c, simplify-rtx.c,
      stack-ptr-mod.c, stmt.c, stor-layout.c, target-globals.c,
      targhooks.c, toplev.c, tree-nested.c, tree-outof-ssa.c,
      tree-profile.c, tree-ssa-coalesce.c, tree-ssa-ifcombine.c,
      tree-ssa-loop-ivopts.c, tree-ssa-loop.c, tree-ssa-reassoc.c,
      tree-ssa-sccvn.c, tree-vect-data-refs.c, ubsan.c, valtrack.c,
      var-tracking.c, varasm.c: Include memmodel.h.
    * genattrtab.c (write_header): Include memmodel.h in generated file.
    * genautomata.c (main): Likewise.
    * gengtype.c (open_base_files): Likewise.
    * genopinit.c (main): Likewise.
    * genconditions.c (write_header): Include memmodel.h earlier in
    generated file.
    * genemit.c (main): Likewise.
    * genoutput.c (output_prologue): Likewise.
    * genpeep.c (main): Likewise.
    * genpreds.c (write_insn_preds_c): Likewise.
    * genrecog.c (write_header): Likewise.
    * Makefile.in (PLUGIN_HEADERS): Include memmodel.h

    gcc/ada/
    * gcc-interface/utils2.c: Include memmodel.h.

    gcc/c-family/
    * c-cppbuiltin.c: Include memmodel.h.
    * c-opts.c: Likewise.
    * c-pragma.c: Likewise.
    * c-warn.c: Likewise.

    gcc/c/
    * c-typeck.c: Include memmodel.h.

    gcc/cp/
    * decl2.c: Include memmodel.h.
    * rtti.c: Likewise.

    gcc/fortran/
    * trans-intrinsic.c: Include memmodel.h.

    gcc/go/
    * go-backend.c: Include memmodel.h.

    libgcc/
    * libgcov-profiler.c: Replace MEMMODEL_* macros by their __ATOMIC_*
    equivalent.
    * config/tilepro/atomic.c: Likewise and stop casting model to
    enum memmodel.

From-SVN: r241121
 2016-10-13 14:17:52 +00:00
Joseph Myers 73f01cca84 Always support float128 on ia64 (PR target/77586). 
Bug 77586, and previously
<https://gcc.gnu.org/ml/gcc-bugs/2016-08/msg03233.html>, reports
ia64-elf failing to build because of float128_type_node being NULL,
but being used by the back end for __float128.

The global float128_type_node is only available conditionally, if
target hooks indicate TFmode is not only available as a scalar mode
and of the right format, but also supported in libgcc.  The back-end
support, however, expects the type always to be available for
__float128 even if the libgcc support is missing.

Although a target-specific node could be restored in the case where
libgcc support is missing, it seems better to address the missing
libgcc support.  Thus, this patch enables TFmode soft-fp in libgcc
globally for all ia64 targets.  Support for XFmode in libgcc (that is,
for libgcc2.c XFmode functions, not soft-fp) is also enabled for all
ia64 targets so that ia64 no longer needs to define the
TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P hook.

I've confirmed that ia64-elf builds cc1 with this patch and it passes
-fself-test.  I have not otherwise tested the patch.  It's plausible
that ia64-elf and ia64-freebsd might work as-is, but ia64-vms probably
needs further changes, by someone familiar with VMS shared libraries,
to implement an equivalent of ia64/t-softfp-compat in that case
(avoiding conflicts between __divtf3 from soft-fp and the old alias
for __divxf3).

	PR target/77586
gcc:
	* config/ia64/ia64.c (ia64_libgcc_floating_mode_supported_p)
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove.
	* config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Likewise.
	* config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Likewise.
	* config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE)
	(IA64_NO_LIBGCC_TFMODE): Likewise.

libgcc:
	* config.host (ia64*-*-elf*, ia64*-*-freebsd*, ia64-hp-*vms*): Use
	soft-fp.

From-SVN: r240955
 2016-10-10 23:43:07 +01:00
Andreas Tobler b20e75328b configure.ac: Add aarch64-*-freebsd*. 
toplevel:

2016-10-10  Andreas Tobler <andreast@gcc.gnu.org>

    * configure.ac: Add aarch64-*-freebsd*.
    * configure: Regenerate.

gcc:

2016-10-10  Andreas Tobler  <andreast@gcc.gnu.org>

    * config.gcc: Add aarch64-*-freebsd* support.
    * config.host: Likewise.
    * config/aarch64/aarch64-freebsd.h: New file.
    * config/aarch64/t-aarch64-freebsd: Ditto.

libgcc:

2016-10-10  Andreas Tobler  <andreast@gcc.gnu.org>

    * config.host: Add support for aarch64-*-freebsd*.

From-SVN: r240949
 2016-10-10 23:31:17 +02:00
Andreas Schwab a786cec431 crtbegin.S (__do_jv_register_classes): Remove. 
* config/ia64/crtbegin.S (__do_jv_register_classes): Remove.
(.section .init_array): Don't call __do_jv_register_classes.
(.section .init): Likewise.

From-SVN: r240771
 2016-10-05 07:50:34 +00:00
Jakub Jelinek 5a79befbf4 defaults.h (JCR_SECTION_NAME, [...]): Remove. 
gcc/
	* defaults.h (JCR_SECTION_NAME, TARGET_USE_JCR_SECTION): Remove.
	* system.h (JCR_SECTION_NAME, TARGET_USE_JCR_SECTION): Poison.
	* doc/tm.texi.in (TARGET_USE_JCR_SECTION): Remove.
	* doc/tm.texi: Regenerated.
	* config/i386/mingw32.h (TARGET_USE_JCR_SECTION): Remove.
	* config/i386/cygming.h (TARGET_USE_JCR_SECTION): Remove.
	* config/darwin.h (JCR_SECTION_NAME): Remove.
	* config/pa/pa64-hpux.h (JCR_SECTION_NAME): Remove.
	* config/rs6000/aix71.h (TARGET_USE_JCR_SECTION): Remove.
	* config/rs6000/aix51.h (TARGET_USE_JCR_SECTION): Remove.
	* config/rs6000/aix52.h (TARGET_USE_JCR_SECTION): Remove.
	* config/rs6000/aix53.h (TARGET_USE_JCR_SECTION): Remove.
	* config/rs6000/aix61.h (TARGET_USE_JCR_SECTION): Remove.
gcc/c-family/
	* c-cppbuiltin.c (c_cpp_builtins): Don't define
	__LIBGCC_JCR_SECTION_NAME__.
libgcc/
	* config/i386/cygming-crtbegin.c (_Jv_RegisterClasses): Remove.
	(__JCR_LIST__): Remove.
	(__gcc_register_frame): Don't attempt to _Jv_RegisterClasses.
	* config/i386/cygming-crtend.c (__JCR_END__): Remove.
	* config/ia64/crtbegin.S (__JCR_LIST__): Remove.
	* config/ia64/crtend.S (__JCR_END__): Remove.
	* crtstuff.c: Remove __LIBGCC_JCR_SECTION_NAME__ from preprocessor
	conditionals.
	(__JCR_LIST__, __JCR_END__): Remove.
	(frame_dummy): Don't attempt to _Jv_RegisterClasses.
	(__do_global_ctors_1): Likewise.

From-SVN: r240739
 2016-10-04 09:49:44 +02:00
Uros Bizjak e0ab375340 cpuinfo.c (__get_cpuid_output): Remove. 
* config/i386/cpuinfo.c (__get_cpuid_output): Remove.
	(__cpu_indicator_init): Call __get_cpuid, not __get_cpuid_output.

From-SVN: r240590
 2016-09-28 20:22:16 +02:00
Martin Liska 8c9434c2f9 gcov: dump in a static dtor instead of in an atexit handler 
PR gcov-profile/7970
	PR gcov-profile/16855
	PR gcov-profile/44779
	* g++.dg/gcov/pr16855.C: New test.
	* coverage.c (build_gcov_exit_decl): New function.
	(coverage_obj_init): Call the function and generate __gcov_exit
	destructor.
	* doc/gcov.texi: Document when __gcov_exit function is called.
	* libgcov-driver.c (__gcov_init): Do not register a atexit
	handler.
	(__gcov_exit): Rename from gcov_exit.
	* libgcov.h (__gcov_exit): Declare.

From-SVN: r240529
 2016-09-27 11:07:11 +00:00
Martin Liska 56b653f1a3 Remove __gcov_merge_delta (PR bootstrap/77749) 
PR bootstrap/77749
	* gcov-counter.def: Remove GCOV_COUNTER_V_DELTA.
	PR bootstrap/77749
	* Makefile.in: Remove _gcov_merge_delta.
	* libgcov-merge.c (void __gcov_merge_delta): Remove.
	* libgcov-util.c (__gcov_delta_counter_op): Remove.
	* libgcov.h: Remove declaration of __gcov_merge_delta.

From-SVN: r240524
 2016-09-27 10:04:39 +00:00
Eric Botcazou 7e02fd1b7b configure.ac: Do not create links, only substitute the filenames. 
* configure.ac: Do not create links, only substitute the filenames.
	* configure: Regenerate.
	* Makefile.in: Assign the substitution results to variables.
	(LIBGCC_LINKS): Define.
	(enable-execute-stack.c): New rule.
	(unwind.h): Likewise.
	(md-unwind-support.h): Likewise.
	(sfp-machine.h): Likewise.
	(gthr-default.h): Likewise.
	Add $(LIBGCC_LINKS) to the prerequisites of all object files and
	unwind.h as prerequisite of install-unwind_h-forbuild.

From-SVN: r240312
 2016-09-21 12:53:20 +00:00
Jakub Jelinek 299910482f re PR libgcc/71744 (Concurrently throwing exceptions is not scalable) 
PR libgcc/71744
	* unwind-dw2-fde.c (ATOMIC_FDE_FAST_PATH): Define if __register_frame*
	is not the primary registry and atomics are available.
	(any_objects_registered): New variable.
	(__register_frame_info_bases, __register_frame_info_table_bases):
	Atomically store 1 to any_objects_registered after registering first
	unwind info.
	(_Unwind_Find_FDE): Return early if any_objects_registered is 0.

From-SVN: r240193
 2016-09-16 21:17:47 +02:00
James Greenhalgh 0abcd6cc73 [Patch libgcc] Enable HCmode multiply and divide (mulhc3/divhc3) 
This patch arranges for half-precision complex multiply and divide
routines to be built if __LIBGCC_HAS_HF_MODE__.  This will be true
if the target supports the _Float16 type.

libgcc/

	PR target/63250
	*  Makefile.in (lib2funcs): Build _mulhc3 and _divhc3.
	* libgcc2.h (LIBGCC_HAS_HF_MODE): Conditionally define.
	(HFtype): Likewise.
	(HCtype): Likewise.
	(__divhc3): Likewise.
	(__mulhc3): Likewise.
	* libgcc2.c: Support _mulhc3 and _divhc3.

From-SVN: r240043
 2016-09-09 09:40:22 +00:00
Joseph Myers d758aeb5ff Correct libgcc complex multiply excess precision handling (PR libgcc/77519). 
libgcc complex multiply is meant to eliminate excess
precision from certain internal values by forcing them to memory in
exactly those cases where the type has excess precision.  But in
https://gcc.gnu.org/ml/gcc-patches/2014-09/msg01894.html I
accidentally inverted the logic so that values get forced to memory in
exactly the cases where it's not needed.  (This is a pessimization in
the no-excess-precision case, in principle could lead to bad results
depending on code generation in the excess-precision case.  Note: I do
not have a test demonstrating bad results.)

Bootstrapped with no regressions on x86_64-pc-linux-gnu.  Code size
went down on x86_64 as expected; old sizes:

   text    data     bss     dec     hex filename
    887       0       0     887     377 _muldc3.o
    810       0       0     810     32a _mulsc3.o
   2032       0       0    2032     7f0 _multc3.o
    983       0       0     983     3d7 _mulxc3.o

New sizes:

    847       0       0     847     34f _muldc3.o
    770       0       0     770     302 _mulsc3.o
   2032       0       0    2032     7f0 _multc3.o
    951       0       0     951     3b7 _mulxc3.o

	PR libgcc/77519
	* libgcc2.c (NOTRUNC): Invert settings.

From-SVN: r240033
 2016-09-08 00:02:56 +01:00
Martin Liska 7fe76f6ae8 Detect whether target can use -fprofile-update=atomic 
PR gcov-profile/77378
	PR gcov-profile/77466
	* libgcov-profiler.c: Use __GCC_HAVE_SYNC_COMPARE_AND_SWAP_{4,8} to
	conditionaly enable/disable *_atomic functions.
	PR gcov-profile/77378
	PR gcov-profile/77466
	* tree-profile.c (tree_profiling): Detect whether target can use
	-fprofile-update=atomic.
	PR gcov-profile/77378
	PR gcov-profile/77466
	* gcc.dg/profile-update-warning.c: New test.

From-SVN: r240008
 2016-09-06 14:13:21 +00:00
Joseph Myers 21184026d5 Always support float128 on x86. 
In <https://gcc.gnu.org/ml/gcc-bugs/2016-08/msg03233.html>, Nick
reported i386-elf and ia64-elf failing to build because of
float128_type_node being NULL, but being used by the back end for
__float128.

The global float128_type_node is only available conditionally, if
target hooks indicate TFmode is not only available as a scalar mode
and of the right format, but also supported in libgcc.  The back-end
support, however, expects the type always to be available for
__float128 even if the libgcc support is missing.

Although a target-specific node could be restored in the case where
libgcc support is missing, it seems better to address the missing
libgcc support.  Thus, this patch enables TFmode soft-fp in libgcc
globally for all x86 targets - the only special cases needed being for
targets that use soft-fp for SFmode and DFmode, one of which already
had the support for TFmode as well (so I based the i[34567]86-*-rtems*
configuration on that present for i[34567]86-*-elfiamcu).  The i386
implementation of TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P is then
removed as no longer needed.

I can provide such a patch for ia64 if useful, but am not in a
position to test it (and while I'm reasonably confident that enabling
this support would be right for ia64-elf and ia64-freebsd, I've no
real idea if enabling libgcc support for TFmode, with or without also
enabling it for XFmode, would be safe for ia64-vms).

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

gcc:
	* config/i386/i386.c (ix86_libgcc_floating_mode_supported_p)
	(TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove.
	* config/i386/i386elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
	* config/i386/lynx.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
	* config/i386/netbsd-elf.h (IX86_MAYBE_NO_LIBGCC_TFMODE):
	Likewise.
	* config/i386/netbsd64.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
	* config/i386/nto.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
	* config/i386/openbsd.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.
	* config/i386/rtemself.h (IX86_NO_LIBGCC_TFMODE): Likewise.
	* config/i386/vxworks.h (IX86_MAYBE_NO_LIBGCC_TFMODE): Likewise.

libgcc:
	* config.host (i[34567]86-*-* | x86_64-*-*): Enable TFmode soft-fp
	where not already enabled.

From-SVN: r239775
 2016-08-26 12:13:42 +01:00
Szabolcs Nagy 726f49c3d9 [mips] Fix linux header use in libgcc 
libgcc/
	* config/mips/linux-unwind.h: Use sys/syscall.h.

From-SVN: r239759
 2016-08-25 14:08:27 +00:00
Joseph Myers feeb62681c Update soft-fp from glibc (PR libgcc/77265). 
This patch updates soft-fp from glibc, bringing in the fix for PR
libgcc/77265, XFmode extension to TFmode wrongly turning an infinity
into a NaN.  A test for that bug is added.

Bootstrapped with no regressions on x86_64-pc-linux-gnu.

	PR libgcc/77265
gcc/testsuite:
	* gcc.dg/torture/float128-extend-inf.c: New test.

libgcc:
	* soft-fp/adddf3.c: Update from glibc.
	* soft-fp/addsf3.c: Likewise.
	* soft-fp/addtf3.c: Likewise.
	* soft-fp/divdf3.c: Likewise.
	* soft-fp/divsf3.c: Likewise.
	* soft-fp/divtf3.c: Likewise.
	* soft-fp/double.h: Likewise.
	* soft-fp/eqdf2.c: Likewise.
	* soft-fp/eqsf2.c: Likewise.
	* soft-fp/eqtf2.c: Likewise.
	* soft-fp/extenddftf2.c: Likewise.
	* soft-fp/extended.h: Likewise.
	* soft-fp/extendsfdf2.c: Likewise.
	* soft-fp/extendsftf2.c: Likewise.
	* soft-fp/extendxftf2.c: Likewise.
	* soft-fp/fixdfdi.c: Likewise.
	* soft-fp/fixdfsi.c: Likewise.
	* soft-fp/fixdfti.c: Likewise.
	* soft-fp/fixsfdi.c: Likewise.
	* soft-fp/fixsfsi.c: Likewise.
	* soft-fp/fixsfti.c: Likewise.
	* soft-fp/fixtfdi.c: Likewise.
	* soft-fp/fixtfsi.c: Likewise.
	* soft-fp/fixtfti.c: Likewise.
	* soft-fp/fixunsdfdi.c: Likewise.
	* soft-fp/fixunsdfsi.c: Likewise.
	* soft-fp/fixunsdfti.c: Likewise.
	* soft-fp/fixunssfdi.c: Likewise.
	* soft-fp/fixunssfsi.c: Likewise.
	* soft-fp/fixunssfti.c: Likewise.
	* soft-fp/fixunstfdi.c: Likewise.
	* soft-fp/fixunstfsi.c: Likewise.
	* soft-fp/fixunstfti.c: Likewise.
	* soft-fp/floatdidf.c: Likewise.
	* soft-fp/floatdisf.c: Likewise.
	* soft-fp/floatditf.c: Likewise.
	* soft-fp/floatsidf.c: Likewise.
	* soft-fp/floatsisf.c: Likewise.
	* soft-fp/floatsitf.c: Likewise.
	* soft-fp/floattidf.c: Likewise.
	* soft-fp/floattisf.c: Likewise.
	* soft-fp/floattitf.c: Likewise.
	* soft-fp/floatundidf.c: Likewise.
	* soft-fp/floatundisf.c: Likewise.
	* soft-fp/floatunditf.c: Likewise.
	* soft-fp/floatunsidf.c: Likewise.
	* soft-fp/floatunsisf.c: Likewise.
	* soft-fp/floatunsitf.c: Likewise.
	* soft-fp/floatuntidf.c: Likewise.
	* soft-fp/floatuntisf.c: Likewise.
	* soft-fp/floatuntitf.c: Likewise.
	* soft-fp/gedf2.c: Likewise.
	* soft-fp/gesf2.c: Likewise.
	* soft-fp/getf2.c: Likewise.
	* soft-fp/ledf2.c: Likewise.
	* soft-fp/lesf2.c: Likewise.
	* soft-fp/letf2.c: Likewise.
	* soft-fp/muldf3.c: Likewise.
	* soft-fp/mulsf3.c: Likewise.
	* soft-fp/multf3.c: Likewise.
	* soft-fp/negdf2.c: Likewise.
	* soft-fp/negsf2.c: Likewise.
	* soft-fp/negtf2.c: Likewise.
	* soft-fp/op-1.h: Likewise.
	* soft-fp/op-2.h: Likewise.
	* soft-fp/op-4.h: Likewise.
	* soft-fp/op-8.h: Likewise.
	* soft-fp/op-common.h: Likewise.
	* soft-fp/quad.h: Likewise.
	* soft-fp/single.h: Likewise.
	* soft-fp/soft-fp.h: Likewise.
	* soft-fp/subdf3.c: Likewise.
	* soft-fp/subsf3.c: Likewise.
	* soft-fp/subtf3.c: Likewise.
	* soft-fp/truncdfsf2.c: Likewise.
	* soft-fp/trunctfdf2.c: Likewise.
	* soft-fp/trunctfsf2.c: Likewise.
	* soft-fp/trunctfxf2.c: Likewise.
	* soft-fp/unorddf2.c: Likewise.
	* soft-fp/unordsf2.c: Likewise.
	* soft-fp/unordtf2.c: Likewise.

From-SVN: r239513
 2016-08-16 22:30:56 +01:00
Gilles Gouaillardet 2e6fc1acd0 gcov-tool: Do not segfault in merge operation (PR 
PR gcov-profile/67097
	* libgcov-util.c (gcov_profile_merge): Skip missing files.

From-SVN: r239478
 2016-08-15 11:23:27 +00:00
Martin Liska a266236e85 Add new *_atomic counter update function 
PR gcov-profile/58306
	* Makefile.in: New functions (modules) are added.
	* libgcov-profiler.c (__gcov_interval_profiler_atomic): New
	function.
	(__gcov_pow2_profiler_atomic): New function.
	(__gcov_one_value_profiler_body): New argument is instroduced.
	(__gcov_one_value_profiler): Call with the new argument.
	(__gcov_one_value_profiler_atomic): Likewise.
	(__gcov_indirect_call_profiler_v2): Likewise.
	(__gcov_time_profiler_atomic): New function.
	(__gcov_average_profiler_atomic): Likewise.
	(__gcov_ior_profiler_atomic): Likewise.
	* libgcov.h: Declare the aforementioned functions.
	PR gcov-profile/58306
	* gcc.dg/tree-prof/val-profiler-threads-1.c: New test.
	PR gcov-profile/58306
	* tree-profile.c (gimple_init_edge_profiler): Create conditionally
	atomic variants of profile update functions.

From-SVN: r239324
 2016-08-10 13:14:56 +00:00
Martin Liska e0c8eebff7 Fix typo in gcov.texi 
* doc/gcov.texi: Change _gcov_dump to __gcov_dump and
	_gcov_reset to __gcov_reset.
	* doc/gcov-tool.texi: Fix typo.
	* libgcov-util.c: Fix typo and GNU coding style.

From-SVN: r239307
 2016-08-09 21:02:24 +00:00
Martin Liska 6dce6418c5 Remove __gcov_indirect_call_profiler 
* Makefile.in: Remove __gcov_indirect_call_profiler.
	* libgcov-profiler.c (__gcov_indirect_call_profiler): Remove
	function.
	* libgcov.h: And the declaration of the function.

From-SVN: r239306
 2016-08-09 21:01:19 +00:00
Martin Liska dcb1e1379e Fix POW2 histogram 
* gcc.dg/tree-prof/val-prof-8.c: New test.
	* value-prof.c (dump_histogram_value): Swap pow2 and non-pow2
	values.
	* libgcov-profiler.c (__gcov_pow2_profiler): Consider 0 as not
	power of two.

From-SVN: r239304
 2016-08-09 20:57:14 +00:00
Bill Schmidt d6e69705e2 _divkc3.c: Add copyright/license boilerplate. 
2016-07-29  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/_divkc3.c: Add copyright/license boilerplate.
	* config/rs6000/_mulkc3.c: Likewise.

From-SVN: r238894
 2016-07-29 20:15:54 +00:00
Georg-Johann Lay 96aa1f9558 lib1funcs.S (__muldi3): No need to clear zero_reg as previous call to __umulhisi3 already cleared it. 
* config/avr/lib1funcs.S (__muldi3) [have MUL]: No need to clear
	zero_reg as previous call to __umulhisi3 already cleared it.

From-SVN: r238850
 2016-07-29 09:14:02 +00:00
Aurelien Jarno a1b01d3403 [ARM] Fix PR target/59833 
For Aurelien Jarno <aurelien@aurel32.net>

On ARM soft-float, the float to double conversion doesn't convert a sNaN
to qNaN as the IEEE Std 754 standard mandates:

"Under default exception handling, any operation signaling an invalid
operation exception and for which a floating-point result is to be
delivered shall deliver a quiet NaN."

Given the soft float ARM code ignores exceptions and always provides a
result, a float to double conversion of a signaling NaN should return a
quiet NaN. Fix this in extendsfdf2.

gcc/ChangeLog:

	PR target/59833
	* config/arm/ieee754-df.S (extendsfdf2): Convert sNaN to qNaN.

gcc/testsuite/ChangeLog:

	* gcc.dg/pr59833.c: New testcase.

From-SVN: r238584
 2016-07-21 08:27:47 +00:00