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2018-03-22Fix PR85025: libgcc/config/i386/shadow-stack-unwind.h is wrong. Igor Tsimbalist2-1/+7
PR target/85025 * config/i386/shadow-stack-unwind.h (_Unwind_Frames_Extra): Fix a typo, tmp => 255. From-SVN: r258763
2018-03-20re PR target/84945 (UBSAN: gcc/config/i386/i386.c:33312:22: runtime error: ↵Jakub Jelinek3-36/+63
shift exponent 32 is too large for 32-bit type 'int') PR target/84945 * config/i386/i386.c (fold_builtin_cpu): For features above 31 use __cpu_features2 variable instead of __cpu_model.__cpu_features[0]. Use 1U instead of 1. Formatting fixes. * gcc.target/i386/pr84945.c: New test. * config/i386/cpuinfo.h (__cpu_features2): Declare. * config/i386/cpuinfo.c (__cpu_features2): New variable for ifndef SHARED only. (set_feature): Define. (get_available_features): Use set_feature macro. Set __cpu_features2 to the second word of features ifndef SHARED. From-SVN: r258673
2018-03-15Add builtin_cpu for cannonlake and new isa features.Julia Koval3-1/+25
gcc/ * config/i386/i386.c (F_AVX512VBMI2, F_GFNI, F_VPCLMULQDQ, F_AVX512VNNI, F_AVX512BITALG): New. gcc/testsuite/ * gcc.target/i386/builtin_target.c (check_intel_cpu_model): Add cannonlake. (check_features): Add avx512vbmi2, gfni, vpclmulqdq, avx512vnni, avx512bitalg. libgcc/ * config/i386/cpuinfo.c (get_available_features): Add FEATURE_AVX512VBMI2, FEATURE_GFNI, FEATURE_VPCLMULQDQ, FEATURE_AVX512VNNI, FEATURE_AVX512BITALG. * config/i386/cpuinfo.h (processor_features) Add FEATURE_AVX512VBMI2, FEATURE_GFNI, FEATURE_VPCLMULQDQ, FEATURE_AVX512VNNI, FEATURE_AVX512BITALG. From-SVN: r258551
2018-03-14Split-up -march=icelake on -march=icelake-server and -march=icelake-clientJulia Koval2-1/+7
Split-up -march=icelake on -march=icelake-server and -march=icelake-client gcc/ * config.gcc (icelake-client, icelake-server): New. (icelake): Remove. * config/i386/i386.c (initial_ix86_tune_features): Extend to 64 bit. (initial_ix86_arch_features): Ditto. (PTA_SKYLAKE): Add SGX. (PTA_ICELAKE): Remove. (PTA_ICELAKE_CLIENT): New. (PTA_ICELAKE_SERVER): New. (ix86_option_override_internal): Split up icelake on icelake client and icelake server. (get_builtin_code_for_version): Ditto. (fold_builtin_cpu): Ditto. * config/i386/driver-i386.c (config/i386/driver-i386.c): Ditto. * config/i386/i386-c.c (ix86_target_macros_internal): Ditto * config/i386/i386.h (processor_type): Ditto. * doc/invoke.texi: Ditto. gcc/testsuite/ * g++.dg/ext/mv16.C: Split up icelake on icelake client and icelake-server. * gcc.target/i386/funcspec-56.inc: Ditto. libgcc/ * config/i386/cpuinfo.h (processor_subtypes): Split up icelake on icelake-client and icelake-server. From-SVN: r258518
2018-03-07fptr.c (_dl_read_access_allowed): New.John David Anglin2-0/+25
* config/pa/fptr.c (_dl_read_access_allowed): New. (__canonicalize_funcptr_for_compare): Use it. From-SVN: r258310
2018-02-28re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call ↵Jakub Jelinek6-22/+89
restore stub gives bad backtrace) PR debug/83917 * configure.ac (AS_HIDDEN_DIRECTIVE): AC_DEFINE_UNQUOTED this to $asm_hidden_op if visibility ("hidden") attribute works. (HAVE_AS_CFI_SECTIONS): New AC_DEFINE. * config/i386/i386-asm.h: Don't include auto-host.h. (PACKAGE_VERSION, PACKAGE_NAME, PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Don't undefine. (USE_GAS_CFI_DIRECTIVES): Don't use nor define this macro, instead guard cfi_startproc only on ifdef __GCC_HAVE_DWARF2_CFI_ASM. (FN_HIDDEN): Change guard from #ifdef HAVE_GAS_HIDDEN to #ifdef AS_HIDDEN_DIRECTIVE, use AS_HIDDEN_DIRECTIVE macro in the definition instead of hardcoded .hidden. * config/i386/cygwin.S: Include i386-asm.h first before .cfi_sections directive. Use #ifdef HAVE_AS_CFI_SECTIONS rather than #ifdef HAVE_GAS_CFI_SECTIONS_DIRECTIVE to guard .cfi_sections. (USE_GAS_CFI_DIRECTIVES): Don't define. * configure: Regenerated. * config.in: Likewise. From-SVN: r258057
2018-02-26re PR debug/83917 (with -mcall-ms2sysv-xlogues, stepping into x86 tail-call ↵Jakub Jelinek5-22/+70
restore stub gives bad backtrace) PR debug/83917 * config/i386/i386-asm.h (PACKAGE_VERSION, PACKAGE_NAME, PACKAGE_STRING, PACKAGE_TARNAME, PACKAGE_URL): Undefine between inclusion of auto-target.h and auto-host.h. (USE_GAS_CFI_DIRECTIVES): Define if not defined already based on __GCC_HAVE_DWARF2_CFI_ASM. (cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset, cfi_def_cfa_register, cfi_def_cfa, cfi_register, cfi_offset, cfi_push, cfi_pop): Define. * config/i386/cygwin.S: Don't include auto-host.h here, just define USE_GAS_CFI_DIRECTIVES to 1 or 0 and include i386-asm.h. (cfi_startproc, cfi_endproc, cfi_adjust_cfa_offset, cfi_def_cfa_register, cfi_register, cfi_push, cfi_pop): Remove. * config/i386/resms64fx.h: Add cfi_* directives. * config/i386/resms64x.h: Likewise. From-SVN: r258010
2018-02-20libgcc: xtensa: fix build with -mtext-section-literalsMax Filippov3-0/+8
libgcc/ 2018-02-20 Max Filippov <jcmvbkbc@gmail.com> * config/xtensa/ieee754-df.S (__adddf3_aux): Add .literal_position directive. * config/xtensa/ieee754-sf.S (__addsf3_aux): Likewise. From-SVN: r257862
2018-02-19CET shouldn't be enabled in 32-bit run-time libraries by defualtIgor Tsimbalist2-1/+21
ENDBR32 and RDSSPD are multi-byte NOPs on x86-64 processors and newer x86 processors, starting Pentium Pro. They are UD on older 32-bit processors. Detect this at configure time and adjust the default value for enable_cet. GCC will enable CET in 32-bit run-time libraries in any case if --enable-cet is used to configure GCC. PR target/84148 * config/cet.m4: Check if target support multi-byte NOPS (SSE). * libatomic/configure: Regenerate. * libbacktrace/configure: Likewise. * libgcc/configure: Likewise. * libgfortran/configure: Likewise. * libgomp/configure: Likewise. * libitm/configure: Likewise. * libmpx/configure: Likewise. * libobjc/configure: Likewise. * libquadmath/configure: Likewise. * libsanitizer/configure: Likewise. * libssp/configure: Likewise. * libstdc++-v3/configure: Likewise. * libvtv/configure: Likewise. From-SVN: r257809
2018-02-16Additional fix for PR 84239.Igor Tsimbalist2-2/+15
PR target/84239 * libgcc/config/i386/shadow-stack-unwind.h (_Unwind_Frames_Extra): Include cetintrin.h not x86intrin.h. From-SVN: r257730
2018-02-14Reimplement CET intrinsics for rdssp/incssp insn.Igor Tsimbalist2-12/+11
Introduce a couple of new CET intrinsics for reading and updating a shadow stack pointer (_get_ssp and _inc_ssp). They replace the existing _rdssp[d|q] and _incssp[d|q] instrinsics. PR target/84239 * gcc/config/i386/cetintrin.h: Remove _rdssp[d|q] and add _get_ssp intrinsics. Remove argument from __builtin_ia32_rdssp[d|q]. * gcc/config/i386/i386-builtin-types.def: Add UINT_FTYPE_VOID. * gcc/config/i386/i386-builtin.def: Remove argument from __builtin_ia32_rdssp[d|q]. * gcc/config/i386/i386.c: Use UINT_FTYPE_VOID. Use ix86_expand_special_args_builtin for _rdssp[d|q]. * gcc/config/i386/i386.md: Remove argument from rdssp[si|di] insn. Clear register before usage. * doc/extend.texi: Remove argument from __builtin_ia32_rdssp[d|q]. Add documentation for new _get_ssp and _inc_ssp intrinsics. * testsuite/gcc.target/i386/cet-intrin-3.c: Use new _get_ssp and _inc_ssp intrinsics. * testsuite/gcc.target/i386/cet-intrin-4.c: Likewise. * testsuite/gcc.target/i386/cet-rdssp-1.c: Remove argument from __builtin_ia32_rdssp[d|q]. * libgcc/config/i386/shadow-stack-unwind.hi (_Unwind_Frames_Extra): Use new _get_ssp and _inc_ssp intrinsics. From-SVN: r257660
2018-02-02Add -march=icelake.Julia Koval2-0/+5
gcc/ * config.gcc: Add -march=icelake. * config/i386/driver-i386.c (host_detect_local_cpu): Detect icelake. * config/i386/i386-c.c (ix86_target_macros_internal): Handle icelake. * config/i386/i386.c (processor_costs): Add m_ICELAKE. (PTA_ICELAKE, PTA_AVX512VNNI, PTA_GFNI, PTA_VAES, PTA_AVX512VBMI2, PTA_VPCLMULQDQ, PTA_RDPID, PTA_AVX512BITALG): New. (processor_target_table): Add icelake. (ix86_option_override_internal): Handle new PTAs. (get_builtin_code_for_version): Handle icelake. (M_INTEL_COREI7_ICELAKE): New. (fold_builtin_cpu): Handle icelake. * config/i386/i386.h (TARGET_ICELAKE, PROCESSOR_ICELAKE): New. * doc/invoke.texi: Add -march=icelake. gcc/testsuite/ * gcc.target/i386/funcspec-56.inc: Handle new march. * g++.dg/ext/mv16.C: Ditto. libgcc/ * config/i386/cpuinfo.h (processor_subtypes): Add INTEL_COREI7_ICELAKE. From-SVN: r257331
2018-01-26[ARC] Add support for reduced register file setClaudiu Zissulescu2-11/+18
gcc/ 2018-01-26 Claudiu Zissulescu <claziss@synopsys.com> * config/arc/arc-arches.def: Option mrf16 valid for all architectures. * config/arc/arc-c.def (__ARC_RF16__): New predefined macro. * config/arc/arc-cpus.def (em_mini): New cpu with rf16 on. * config/arc/arc-options.def (FL_RF16): Add mrf16 option. * config/arc/arc-tables.opt: Regenerate. * config/arc/arc.c (arc_conditional_register_usage): Handle reduced register file case. (arc_file_start): Set must have build attributes. * config/arc/arc.h (MAX_ARC_PARM_REGS): Conditional define using mrf16 option value. * config/arc/arc.opt (mrf16): Add new option. * config/arc/elf.h (ATTRIBUTE_PCS): Define. * config/arc/genmultilib.awk: Handle new mrf16 option. * config/arc/linux.h (ATTRIBUTE_PCS): Define. * config/arc/t-multilib: Regenerate. * doc/invoke.texi (ARC Options): Document mrf16 option. libgcc/ 2018-01-26 Claudiu Zissulescu <claziss@synopsys.com> * config/arc/lib1funcs.S (__udivmodsi4): Use safe version for RF16 option. (__divsi3): Use RF16 safe registers. (__modsi3): Likewise. From-SVN: r257083
2018-01-23libgcc: xtensa: fix NaN return from add/sub/mul/div helpersMax Filippov3-31/+81
libgcc/ 2018-01-23 Max Filippov <jcmvbkbc@gmail.com> * config/xtensa/ieee754-df.S (__addsf3, __subsf3, __mulsf3) (__divsf3): Make NaN return value quiet. * config/xtensa/ieee754-sf.S (__adddf3, __subdf3, __muldf3) (__divdf3): Make NaN return value quiet. From-SVN: r257002
2018-01-22rl78.md: New define_expand "anddi3".Sebastian Perta3-1/+73
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/rl78.md: New define_expand "anddi3". 2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/anddi3.S: New assembly file. * config/rl78/t-rl78: Added anddi3.S to LIB2ADD. From-SVN: r256958
2018-01-22rl78.md: New define_expand "umindi3".Sebastian Perta3-0/+80
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/rl78.md: New define_expand "umindi3". 2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/umindi3.S: New assembly file. * config/rl78/t-rl78: Added umindi3.S to LIB2ADD. From-SVN: r256957
2018-01-22rl78.md: New define_expand "smindi3".Sebastian Perta3-0/+82
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/rl78.md: New define_expand "smindi3". 2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/smindi3.S: New assembly file. * config/rl78/t-rl78: Added smindi3.S to LIB2ADD. From-SVN: r256954
2018-01-22rl78.md: New define_expand "smaxdi3".Sebastian Perta3-1/+83
2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/rl78.md: New define_expand "smaxdi3". 2018-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/smaxdi3.S: New assembly file. * config/rl78/t-rl78: Added smaxdi3.S to LIB2ADD. From-SVN: r256953
2018-01-22fixed year in gcc/ChangeLog and libgcc/ChangeLogSebastian Perta1-1/+1
From-SVN: r256949
2018-01-22rl78.md: New define_expand "umaxdi3".Sebastian Perta3-1/+81
2017-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/rl78.md: New define_expand "umaxdi3". 2017-01-22 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/umaxdi3.S: New assembly file. * config/rl78/t-rl78: Added umaxdi3.S to LIB2ADD. From-SVN: r256948
2018-01-21re PR lto/83452 (FAIL: gfortran.dg/save_6.f90 -O0 (test for excess errors))John David Anglin3-1/+15
PR lto/83452 * config/pa/stublib.c (L_gnu_lto_v1): New stub definition. * config/pa/t-stublib (gnu_lto_v1-stub.o): Add make fragment. From-SVN: r256933
2018-01-13SVE unwindingRichard Sandiford3-4/+35
This patch adds support for unwinding frames that use the SVE pseudo VG register. We want this register to act like a normal register if the CFI explicitly sets it, but want to provide a default value otherwise. Computing the default value requires an SVE target, so we only want to compute it on demand. aarch64_vg uses a hard-coded .inst in order to avoid a build dependency on binutils 2.28 or later. 2018-01-13 Richard Sandiford <richard.sandiford@linaro.org> gcc/ * doc/tm.texi.in (DWARF_LAZY_REGISTER_VALUE): Document. * doc/tm.texi: Regenerate. libgcc/ * config/aarch64/value-unwind.h (aarch64_vg): New function. (DWARF_LAZY_REGISTER_VALUE): Define. * unwind-dw2.c (_Unwind_GetGR): Use DWARF_LAZY_REGISTER_VALUE to provide a fallback register value. gcc/testsuite/ * g++.target/aarch64/sve/aarch64-sve.exp: New harness. * g++.target/aarch64/sve/catch_1.C: New test. * g++.target/aarch64/sve/catch_2.C: Likewise. * g++.target/aarch64/sve/catch_3.C: Likewise. * g++.target/aarch64/sve/catch_4.C: Likewise. * g++.target/aarch64/sve/catch_5.C: Likewise. * g++.target/aarch64/sve/catch_6.C: Likewise. Reviewed-by: James Greenhalgh <james.greenhalgh@arm.com> From-SVN: r256615
2018-01-08quad-float128.h (IBM128_TYPE): Explicitly use __ibm128, instead of trying to ↵Michael Meissner1-0/+38
use long double. 2018-01-08 Michael Meissner <meissner@linux.vnet.ibm.com> * config/rs6000/quad-float128.h (IBM128_TYPE): Explicitly use __ibm128, instead of trying to use long double. (CVT_FLOAT128_TO_IBM128): Use TFtype instead of __float128 to accomidate -mabi=ieeelongdouble multilibs. (CVT_IBM128_TO_FLOAT128): Likewise. * config/rs6000/ibm-ldouble.c (IBM128_TYPE): New macro to define the appropriate IBM extended double type. (__gcc_qadd): Change all occurances of long double to IBM128_TYPE. (__gcc_qsub): Likewise. (__gcc_qmul): Likewise. (__gcc_qdiv): Likewise. (pack_ldouble): Likewise. (__gcc_qneg): Likewise. (__gcc_qeq): Likewise. (__gcc_qne): Likewise. (__gcc_qge): Likewise. (__gcc_qle): Likewise. (__gcc_stoq): Likewise. (__gcc_dtoq): Likewise. (__gcc_itoq): Likewise. (__gcc_utoq): Likewise. (__gcc_qunord): Likewise. * config/rs6000/_mulkc3.c (toplevel): Include soft-fp.h and quad-float128.h for the definitions. (COPYSIGN): Use the f128 version instead of the q version. (INFINITY): Likewise. (__mulkc3): Use TFmode/TCmode for float128 scalar/complex types. * config/rs6000/_divkc3.c (toplevel): Include soft-fp.h and quad-float128.h for the definitions. (COPYSIGN): Use the f128 version instead of the q version. (INFINITY): Likewise. (FABS): Likewise. (__divkc3): Use TFmode/TCmode for float128 scalar/complex types. * config/rs6000/extendkftf2-sw.c (__extendkftf2_sw): Likewise. * config/rs6000/trunctfkf2-sw.c (__trunctfkf2_sw): Likewise. From-SVN: r256354
2018-01-08quad-float128.h (IBM128_TYPE): Explicitly use __ibm128, instead of trying to ↵Michael Meissner6-74/+74
use long double. 2018-01-08 Michael Meissner <meissner@linux.vnet.ibm.com> * config/rs6000/quad-float128.h (IBM128_TYPE): Explicitly use __ibm128, instead of trying to use long double. (CVT_FLOAT128_TO_IBM128): Use TFtype instead of __float128 to accomidate -mabi=ieeelongdouble multilibs. (CVT_IBM128_TO_FLOAT128): Likewise. * config/rs6000/ibm-ldouble.c (IBM128_TYPE): New macro to define the appropriate IBM extended double type. (__gcc_qadd): Change all occurances of long double to IBM128_TYPE. (__gcc_qsub): Likewise. (__gcc_qmul): Likewise. (__gcc_qdiv): Likewise. (pack_ldouble): Likewise. (__gcc_qneg): Likewise. (__gcc_qeq): Likewise. (__gcc_qne): Likewise. (__gcc_qge): Likewise. (__gcc_qle): Likewise. (__gcc_stoq): Likewise. (__gcc_dtoq): Likewise. (__gcc_itoq): Likewise. (__gcc_utoq): Likewise. (__gcc_qunord): Likewise. * config/rs6000/_mulkc3.c (toplevel): Include soft-fp.h and quad-float128.h for the definitions. (COPYSIGN): Use the f128 version instead of the q version. (INFINITY): Likewise. (__mulkc3): Use TFmode/TCmode for float128 scalar/complex types. * config/rs6000/_divkc3.c (toplevel): Include soft-fp.h and quad-float128.h for the definitions. (COPYSIGN): Use the f128 version instead of the q version. (INFINITY): Likewise. (FABS): Likewise. (__divkc3): Use TFmode/TCmode for float128 scalar/complex types. * config/rs6000/extendkftf2-sw.c (__extendkftf2_sw): Likewise. * config/rs6000/trunctfkf2-sw.c (__trunctfkf2_sw): Likewise. From-SVN: r256353
2018-01-05RTEMS/EPIPHANY: Add RTEMS supportSebastian Huber2-2/+7
gcc/ * config.gcc (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration. * config/epiphany/rtems.h: New file. libgcc/ * config.host (epiphany-*-elf*): Add (epiphany-*-rtems*) configuration. From-SVN: r256273
2018-01-03Update copyright years.Jakub Jelinek1005-1007/+1015
From-SVN: r256169
2017-12-12Use C version of multi3 for RVE support.Kito Cheng4-91/+93
libgcc/ * config/riscv/t-elf: Use multi3.c instead of multi3.S. * config/riscv/multi3.c: New file. * config/riscv/multi3.S: Remove. From-SVN: r255598
2017-12-08Add .type and .size directives to riscv libgcc functions.Jim Wilson6-102/+182
libgcc/ * config/riscv/div.S: Use FUNC_* macros. * config/riscv/muldi3.S, config/riscv/multi3.S: Likewise * config/riscv/save-restore.S: Likewise. * config/riscv/riscv-asm.h: New. From-SVN: r255521
2017-12-01_mulkc3.c (__mulkc3): Add forward declaration.Michael Meissner3-0/+7
2017-11-30 Michael Meissner <meissner@linux.vnet.ibm.com> * config/rs6000/_mulkc3.c (__mulkc3): Add forward declaration. * config/rs6000/_divkc3.c (__divkc3): Likewise. From-SVN: r255289
2017-11-30re PR libgcc/83112 (Silence warnings from PowerPC libgcc float128-ifunc.c ↵Michael Meissner7-84/+166
compilation) 2017-11-30 Michael Meissner <meissner@linux.vnet.ibm.com> PR libgcc/83112 * config/rs6000/float128-ifunc.c (__addkf3_resolve): Use the correct type for all ifunc resolvers to silence -Wattribute-alias warnings. Eliminate the forward declaration of the resolver functions which is no longer needed. (__subkf3_resolve): Likewise. (__mulkf3_resolve): Likewise. (__divkf3_resolve): Likewise. (__negkf2_resolve): Likewise. (__eqkf2_resolve): Likewise. (__nekf2_resolve): Likewise. (__gekf2_resolve): Likewise. (__gtkf2_resolve): Likewise. (__lekf2_resolve): Likewise. (__ltkf2_resolve): Likewise. (__unordkf2_resolve): Likewise. (__extendsfkf2_resolve): Likewise. (__extenddfkf2_resolve): Likewise. (__trunckfsf2_resolve): Likewise. (__trunckfdf2_resolve): Likewise. (__fixkfsi_resolve): Likewise. (__fixkfdi_resolve): Likewise. (__fixunskfsi_resolve): Likewise. (__fixunskfdi_resolve): Likewise. (__floatsikf_resolve): Likewise. (__floatdikf_resolve): Likewise. (__floatunsikf_resolve): Likewise. (__floatundikf_resolve): Likewise. (__extendkftf2_resolve): Likewise. (__trunctfkf2_resolve): Likewise. PR libgcc/83103 * config/rs6000/quad-float128.h (TF): Don't define if long double is IEEE 128-bit floating point. (TCtype): Define as either TCmode or KCmode, depending on whether long double is IEEE 128-bit floating point. (__mulkc3_sw): Add declarations for software/hardware versions of complex multiply/divide. (__divkc3_sw): Likewise. (__mulkc3_hw): Likewise. (__divkc3_hw): Likewise. * config/rs6000/_mulkc3.c (_mulkc3): If we are building ifunc handlers to switch between using software emulation and hardware float128 instructions, build the complex multiply/divide functions for both software and hardware support. * config/rs6000/_divkc3.c (_divkc3): Likewise. * config/rs6000/float128-ifunc.c (__mulkc3_resolve): Likewise. (__divkc3_resolve): Likewise. (__mulkc3): Likewise. (__divkc3): Likewise. * config/rs6000/t-float128-hw (fp128_hardfp_src): Likewise. (fp128_hw_src): Likewise. (fp128_hw_static_obj): Likewise. (fp128_hw_shared_obj): Likewise. (_mulkc3-hw.c): Create _mulkc3-hw.c and _divkc3-hw.c from _mulkc3.c and _divkc3.c, changing the function name. (_divkc3-hw.c): Likewise. * config/rs6000/t-float128 (clean-float128): Delete _mulkc3-hw.c and _divkc3-hw.c. From-SVN: r255282
2017-11-26i386.c (processor_target_table): Add skylake_cost for skylake-avx512.Uros Bizjak3-0/+12
* config/i386/i386.c (processor_target_table): Add skylake_cost for skylake-avx512. * config/i386/x86-tune-costs.h (skylake_memcpy, skylake_memset, skylake_cost): New. * config/i386/driver-i386.c (host_detect_local_cpu): Detect skylake-avx512. * config.gcc: Add -march=cannonlake. * config/i386/driver-i386.c (host_detect_local_cpu): Detect cannonlake. * config/i386/i386-c.c (ix86_target_macros_internal): Handle cannonlake. * config/i386/i386.c (processor_costs): Add m_CANNONLAKE. (PTA_CANNONLAKE): New. (processor_target_table): Add cannonlake. (ix86_option_override_internal): Ditto. (fold_builtin_cpu): Ditto. (get_builtin_code_for_version): Handle cannonlake. (M_INTEL_COREI7_CANNONLAKE): New. * config/i386/i386.h (TARGET_CANNONLAKE, PROCESSOR_CANNONLAKE): New. * doc/invoke.texi: Add -march=cannonlake. gcc/testsuite/ * gcc.target/i386/funcspec-56.inc: Handle new march. * g++.dg/ext/mv16.C: Ditto. libgcc/ * config/i386/cpuinfo.c (get_intel_cpu): Handle cannonlake. * config/i386/cpuinfo.h (processor_subtypes): Add INTEL_COREI7_CANNONLAKE. From-SVN: r255155
2017-11-20re PR bootstrap/83015 (bootstrap comparison failure on ia64)Igor Tsimbalist5-5/+16
PR bootstrap/83015 * config/cr16/unwind-cr16.c (uw_install_context): Add FRAMES parameter. * config/xtensa/unwind-dw2-xtensa.c: Likewise * config/ia64/unwind-ia64.c: Add frames parameter. * unwind-sjlj.c: Likewise. From-SVN: r254951
2017-11-17Add Intel CET support for EH in libgcc.Igor Tsimbalist6-13/+106
Control-flow Enforcement Technology (CET), published by Intel, introduces the Shadow Stack feature, which ensures a return from a function is done to exactly the same location from where the function was called. When EH is present the control-flow transfer may skip some stack frames and the shadow stack has to be adjusted not to signal a violation of a control-flow transfer. It's done by counting a number of skiping frames and adjasting shadow stack pointer by this number. Having new semantic of the 'ret' instruction if CET is supported in HW the 'ret' instruction cannot be generated in ix86_expand_epilogue when we are returning after EH is processed. Added a code in ix86_expand_epilogue to adjust Shadow Stack pointer and to generate an indirect jump instead of 'ret'. As sp register is used during this adjustment thus the argument in pro_epilogue_adjust_stack is changed to update cfa_reg based on whether control-flow instrumentation is set. Without updating the cfa_reg field there is an assert later in dwarf2 pass related to mismatch the stack register and cfa_reg value. gcc/ * config/i386/i386.c (ix86_expand_epilogue): Change simple return to indirect jump for EH return if control-flow protection is enabled. Change explicit 'false' argument in pro_epilogue_adjust_stack with a value of flag_cf_protection. * config/i386/i386.md (simple_return_indirect_internal): Remove SImode restriction to support 64-bit. libgcc/ * config/i386/linux-unwind.h: Include config/i386/shadow-stack-unwind.h. * config/i386/shadow-stack-unwind.h: New file. * unwind-dw2.c: (uw_install_context): Add a frame parameter and pass it to _Unwind_Frames_Extra. * unwind-generic.h (_Unwind_Frames_Extra): New. * unwind.inc (_Unwind_RaiseException_Phase2): Add frames_p parameter. Add local variable frames to count number of frames. (_Unwind_ForcedUnwind_Phase2): Likewise. (_Unwind_RaiseException): Add local variable frames to count number of frames, pass it to _Unwind_RaiseException_Phase2 and uw_install_context. (_Unwind_ForcedUnwind): Likewise. (_Unwind_Resume): Likewise. (_Unwind_Resume_or_Rethrow): Likewise. From-SVN: r254876
2017-11-17Enable building libgcc with CET options.Igor Tsimbalist12-2/+115
Enable building libgcc with CET options by default on Linux/x86 if binutils supports CET v2.0. It can be disabled with --disable-cet. It is an error to configure GCC with --enable-cet if bintuiils doesn't support CET v2.0. ENDBR instruction is added to __morestack_large_model since it is called indirectly. 2017-11-17 Igor Tsimbalist <igor.v.tsimbalist@intel.com> config/ * cet.m4: New file. gcc/ * config.gcc (extra_headers): Add cet.h for x86 targets. * config/i386/cet.h: New file. * doc/install.texi: Add --enable-cet/--disable-cet. libgcc/ * Makefile.in (configure_deps): Add $(srcdir)/../config/cet.m4. (CET_FLAGS): New. * config/i386/morestack.S: Include <cet.h>. (__morestack_large_model): Add _CET_ENDBR at function entrance. * config/i386/resms64.h: Include <cet.h>. * config/i386/resms64f.h: Likewise. * config/i386/resms64fx.h: Likewise. * config/i386/resms64x.h: Likewise. * config/i386/savms64.h: Likewise. * config/i386/savms64f.h: Likewise. * config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Add $(CET_FLAGS). (CRTSTUFF_T_CFLAGS): Likewise. * configure.ac: Include ../config/cet.m4. Set and substitute CET_FLAGS. * configure: Regenerated. From-SVN: r254868
2017-11-14Adapt Solaris 12 referencesRainer Orth5-8/+15
libgcc: * config.host (*-*-solaris2*): Adapt comment for Solaris 12 renaming. * config/sol2/crtpg.c (__start_crt_compiler): Likewise. * configure.ac (libgcc_cv_solaris_crts): Likewise. * configure: Regenerate. gcc: * config.gcc (*-*-solaris2*): Enable default_use_cxa_atexit since Solaris 11. Update comment. * configure.ac (gcc_cv_ld_pid): Adapt comment for Solaris 12 renaming. * config/sol2.h (STARTFILE_SPEC): Likewise. * configure: Regenerate. gcc/testsuite: * lib/target-supports.exp (check_effective_target_pie): Adapt comment for Solaris 12 renaming. * gcc.dg/torture/pr60092.c: Remove *-*-solaris2.11* dg-xfail-run-if. From-SVN: r254737
2017-11-07[libgcc, rs6000] Remove semicolon after do {} while (0) in ↵Tom de Vries2-1/+6
REGISTER_CFA_OFFSET_FOR 2017-11-07 Tom de Vries <tom@codesourcery.com> * config/rs6000/aix-unwind.h (REGISTER_CFA_OFFSET_FOR): Remove semicolon after "do {} while (0)". From-SVN: r254491
2017-11-07[libgcc] Remove semicolon after do {} while (0) in FP_HANDLE_EXCEPTIONSTom de Vries6-5/+15
2017-11-07 Tom de Vries <tom@codesourcery.com> PR other/82784 * config/aarch64/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Remove semicolon after "do {} while (0)". * config/i386/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same. * config/ia64/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same. * config/mips/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same. * config/rs6000/sfp-machine.h (FP_HANDLE_EXCEPTIONS): Same. From-SVN: r254489
2017-11-04re PR libgcc/82635 (std::thread's join broken on FreeBSD with all GCCs >= 5)Andreas Tobler2-2/+49
2017-11-04 Andreas Tobler <andreast@gcc.gnu.org> PR libgcc/82635 * config/i386/freebsd-unwind.h (MD_FALLBACK_FRAME_STATE_FOR): Use a sysctl to determine whether we're in a trampoline. Keep the pattern matching method for systems without KERN_PROC_SIGTRAMP sysctl. From-SVN: r254411
2017-11-03[ARC] Fix to unwinding.Cupertino Miranda4-0/+203
gcc/ChangeLog: 2017-11-03 Cupertino Miranda <cmiranda@synopsys.com> * config/arc/arc.c (arc_save_restore): Corrected CFA note. (arc_expand_prologue): Restore blink for millicode. * config/arc/linux.h (LINK_EH_SPEC): Defined. libgcc/ChangeLog: 2017-11-03 Cupertino Miranda <cmiranda@synopsys.com> Vineet Gupta <vgupta@synopsys.com> * config.host (arc*-*-linux*): Set md_unwind_header variable. * config/arc/linux-unwind-reg.def: New file. * config/arc/linux-unwind.h: Likewise. Co-Authored-By: Vineet Gupta <vgupta@synopsys.com> From-SVN: r254367
2017-10-23rl78.md: New define_expand "subdi3".Sebastian Perta3-1/+65
* config/rl78/rl78.md: New define_expand "subdi3". * config/rl78/subdi3.S: New assembly file. * config/rl78/t-rl78: Added subdi3.S to LIB2ADD. From-SVN: r254019
2017-10-23Forgot to add the new file :-P 2017-10-13 Sebastian Perta ↵Sebastian Perta1-0/+58
<sebastian.perta@renesas.com> Forgot to add the new file :-P 2017-10-13 Sebastian Perta <sebastian.perta@renesas.com> * config/rl78/adddi3.S: New assembly file. * config/rl78/t-rl78: Added adddi3.S to LIB2ADD. From-SVN: r254016
2017-10-13rl78.c (rl78_emit_libcall): New function.Sebastian Perta2-1/+7
[gcc] * config/rl78/rl78.c (rl78_emit_libcall): New function. * config/rl78/rl78-protos.h (rl78_emit_libcall): New function. * config/rl78/rl78.md: New define_expand "adddi3". [libgcc] * config/rl78/adddi3.S: New assembly file. * config/rl78/t-rl78: Added adddi3.S to LIB2ADD. From-SVN: r253748
2017-10-13re PR target/82274 (__builtin_mul_overflow fails to detect overflow for ↵Jakub Jelinek2-1/+9
int64_t when compiled with -m32) PR target/82274 * internal-fn.c (expand_mul_overflow): If both operands have the same highpart of -1 or 0 and the topmost bit of lowpart is different, overflow is if res <= 0 rather than res < 0. * libgcc2.c (__mulvDI3): If both operands have the same highpart of -1 and the topmost bit of lowpart is 0, multiplication overflows even if both lowparts are 0. * gcc.dg/pr82274-1.c: New test. * gcc.dg/pr82274-2.c: New test. From-SVN: r253734
2017-09-29crti-hw.S: Add watchdog vector, FT930 IRQ support.James Bowman2-11/+21
libgcc/ * config/ft32/crti-hw.S: Add watchdog vector, FT930 IRQ support. From-SVN: r253276
2017-09-26Enable no-exec stacks for more targets using the Linux kernel.Joseph Myers12-0/+76
Building glibc for many different configurations and running the compilation parts of the testsuite runs into failures of the elf/check-execstack test for hppa and microblaze. Those configurations default to executable stacks in the Linux kernel because of VM_DATA_DEFAULT_FLAGS definitions including VM_EXEC (VM_DATA_DEFAULT_FLAGS being the default definition of VM_STACK_DEFAULT_FLAGS). This fails because those configurations are not generating .note.GNU-stack sections to indicate that programs do not need an executable stack. This patch fixes GCC to generate those sections on those architectures (when configured for a target using the Linux kernel), as it does on other architectures, together with adding that section to libgcc .S sources, with the same code as used on other architectures (or a variant using "#ifdef __linux__" instead of the usual "#if defined(__ELF__) && defined(__linux__)" for microblaze, as that configuration doesn't use elfos.h and so doesn't define __ELF__). This suffices to eliminate that glibc test failure. (For hppa, the compilation parts of the glibc testsuite still fail because of the separate elf/check-textrel failure.) gcc: * config/microblaze/linux.h (TARGET_ASM_FILE_END): Likewise. * config/pa/pa.h (NEED_INDICATE_EXEC_STACK): Likewise. * config/pa/pa-linux.h (NEED_INDICATE_EXEC_STACK): Likewise. * config/pa/pa.c (pa_hpux_file_end): Rename to pa_file_end. Define unconditionally, with [ASM_OUTPUT_EXTERNAL_REAL] conditionals inside the function instead of around it. Call file_end_indicate_exec_stack if NEED_INDICATE_EXEC_STACK. (TARGET_ASM_FILE_END): Define unconditionally to pa_file_end. libgcc: * config/microblaze/crti.S, config/microblaze/crtn.S, config/microblaze/divsi3.S, config/microblaze/moddi3.S, config/microblaze/modsi3.S, config/microblaze/muldi3_hard.S, config/microblaze/mulsi3.S, config/microblaze/stack_overflow_exit.S, config/microblaze/udivsi3.S, config/microblaze/umodsi3.S, config/pa/milli64.S: Add .note.GNU-stack section. From-SVN: r253204
2017-09-23PR target/82196 addendum: Fix Darwin build breakage and test FAILS on SolarisDaniel Santos5-8/+105
gcc/testsuite: * gcc.target/i386/pr82196-1.c: (b): Remove volatile asm. * gcc.target/i386/pr82196-2.c: (b): Likewise. libgcc: * configure.ac: Add Check for HAVE_AS_AVX. * config.in: Regenerate. * configure: Likewise. * config/i386/i386-asm.h: Include auto-target.h from libgcc. (SSE_SAVE, SSE_RESTORE): Emit .byte sequence for !HAVE_AS_AVX. Correct out-of-date comments. From-SVN: r253116
2017-09-20config.gcc: Support "knm".Sebastian Peryt3-20/+30
gcc/ * config.gcc: Support "knm". * config/i386/driver-i386.c (host_detect_local_cpu): Detect "knm". * config/i386/i386-c.c (ix86_target_macros_internal): Handle PROCESSOR_KNM. * config/i386/i386.c (m_KNM): Define. (processor_target_table): Add "knm". (PTA_KNM): Define. (ix86_option_override_internal): Add "knm". (ix86_issue_rate): Add PROCESSOR_KNM. (ix86_adjust_cost): Ditto. (ia32_multipass_dfa_lookahead): Ditto. (get_builtin_code_for_version): Handle PROCESSOR_KNM. (fold_builtin_cpu): Add M_INTEL_KNM. * config/i386/i386.h (processor_costs): Define TARGET_KNM. (processor_type): Add PROCESSOR_KNM. * config/i386/x86-tune.def: Add m_KNM. * doc/invoke.texi: Add knm as x86 -march=/-mtune= CPU type. libgcc/ * config/i386/cpuinfo.h (processor_types): Add INTEL_KNM. * config/i386/cpuinfo.c (get_intel_cpu): Detect Knights Mill. gcc/testsuite/ * gcc.target/i386/builtin_target.c: Test knm. * gcc.target/i386/funcspec-56.inc: Test arch=knm. From-SVN: r253013
2017-09-17PR target/82196 correct choice of avx/sse stubs for -mcall-ms2sysv-xloguesDaniel Santos21-96/+164
gcc: config/i386/i386.c: (xlogue_layout::STUB_NAME_MAX_LEN): Increase to 20 bytes. (xlogue_layout::s_stub_names): Add an additional size-2 diminsion. (xlogue_layout::get_stub_name): Modify to select the appropairate sse or avx version of the stub. gcc/testsuite: gcc.target/i386/pr82196-1.c: New test. gcc.target/i386/pr82196-2.c: Likewise. libgcc: config/i386/i386-asm.h (PASTE2): New macro. (ASMNAME): Modify to use PASTE2. (MS2SYSV_STUB_PREFIX): New macro for isa prefix. (MS2SYSV_STUB_BEGIN, MS2SYSV_STUB_END): New macros for stub headers. config/i386/resms64.S: Rename to a header file, use MS2SYSV_STUB_BEGIN instead of HIDDEN_FUNC and MS2SYSV_STUB_END instead of FUNC_END. config/i386/resms64f.S: Likewise. config/i386/resms64fx.S: Likewise. config/i386/resms64x.S: Likewise. config/i386/savms64.S: Likewise. config/i386/savms64f.S: Likewise. config/i386/avx_resms64.S: New file that only defines a macro and includes it's corresponding header file. config/i386/avx_resms64f.S: Likewise. config/i386/avx_resms64fx.S: Likewise. config/i386/avx_resms64x.S: Likewise. config/i386/avx_savms64.S: Likewise. config/i386/avx_savms64f.S: Likewise. config/i386/sse_resms64.S: Likewise. config/i386/sse_resms64f.S: Likewise. config/i386/sse_resms64fx.S: Likewise. config/i386/sse_resms64x.S: Likewise. config/i386/sse_savms64.S: Likewise. config/i386/sse_savms64f.S: Likewise. config/i386/t-msabi: Modified to add avx and sse versions of stubs. From-SVN: r252896
2017-09-01config.host (*-*-vxworks7): Widen scope to vxworks7*.Olivier Hainque2-1/+5
2017-09-01 Olivier Hainque <hainque@adacore.com> libgcc/ * config.host (*-*-vxworks7): Widen scope to vxworks7*. From-SVN: r251594
2017-08-31config.gcc (powerpc-wrs-vxworks|vxworksae|vxworksmils): Now match as ↵Olivier Hainque2-1/+6
powerpc-wrs-vxworks*. 2017-08-31 Olivier Hainque <hainque@adacore.com> gcc/ * config.gcc (powerpc-wrs-vxworks|vxworksae|vxworksmils): Now match as powerpc-wrs-vxworks*. libgcc/ * config.host: Likewise. From-SVN: r251573
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