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2019-09-09Simplify the implementation of HARD_REG_SETRichard Sandiford10-346/+139
We have two styles of HARD_REG_SET: a single integer based on HOST_WIDEST_FAST_INT (used when FIRST_PSEUDO_REGISTER is small enough) or an array of integers. One of the nice properties of this arrangement is that: void foo (const HARD_REG_SET); is passed by value as an integer when the set is small enough and by reference otherwise. (This is in constrast to "const HARD_REG_SET &", which would always be passed by reference, and in contrast to passing a structure wrapper like "struct s { T elts[1]; }" by value, where the structure might be passed like a T or by reference, depending on the ABI.) However, one of the disadvantages of using an array is that simple assignment doesn't work. We need to use COPY_HARD_REG_SET instead. This patch uses a structure wrapper around the array, and preserves the above "nice property" using a new const_hard_reg_set typedef. The patch also removes the manual unrolling for small array sizes; I think these days we can rely on the compiler to do that for us. This meant fixing two port-specific quirks: - epiphany passed NULL as a HARD_REG_SET whose value doesn't matter. The patch passes the NO_REGS set instead. - ia64 reused TEST_HARD_REG_BIT and SET_HARD_REG_BIT for arrays that are bigger than HARD_REG_SET. The patch just open-codes them. The patch is probably being too conservative. Very few places actually take advantage of the "nice property" above, and we could have a cleaner interface if we used a structure wrapper for all cases. 2019-09-09 Richard Sandiford <richard.sandiford@arm.com> gcc/ * hard-reg-set.h (HARD_REG_SET): Define using a typedef rather than a #define. Use a structure rather than an array as the fallback definition. Remove special cases for low array sizes. (const_hard_reg_set): New typedef. (hard_reg_set_subset_p): Use it instead of "const HARD_REG_SET". (hard_reg_set_equal_p, hard_reg_set_intersect_p): Likewise. (hard_reg_set_empty_p): Likewise. (SET_HARD_REG_BIT): Use a function rather than a macro to handle the case in which HARD_REG_SET is a structure. (CLEAR_HARD_REG_BIT, TEST_HARD_REG_BIT, CLEAR_HARD_REG_SET) (SET_HARD_REG_SET, COPY_HARD_REG_SET, COMPL_HARD_REG_SET) (AND_HARD_REG_SET, AND_COMPL_HARD_REG_SET, IOR_HARD_REG_SET) (IOR_COMPL_HARD_REG_SET): Likewise. (hard_reg_set_iterator::pset): Constify the pointer target. (hard_reg_set_iter_init): Take a const_hard_reg_set instead of a "const HARD_REG_SET". Update the handling of non-integer HARD_REG_SETs. * recog.h: Test HARD_CONST instead of CLEAR_HARD_REG_SET. * reload.h: Likewise. * rtl.h (choose_hard_reg_mode): Remove unnecessary line break. * regs.h (in_hard_reg_set_p): Take a const_hard_reg_set instead of a "const HARD_REG_SET". (overlaps_hard_reg_set_p, range_overlaps_hard_reg_set_p): Likewise. (range_in_hard_reg_set_p): Likewise. * ira-costs.c (restrict_cost_classes): Likewise. * shrink-wrap.c (move_insn_for_shrink_wrap): Likewise. * config/epiphany/resolve-sw-modes.c (pass_resolve_sw_modes::execute): Pass a NO_REGS HARD_REG_SET rather than NULL to emit_set_fp_mode. * config/ia64/ia64.c (rws_insn): In the CHECKING_P version, use unsigned HOST_WIDEST_FAST_INT rather than HARD_REG_ELT_TYPE. (rws_insn_set, rws_insn_test): In the CHECKING_P version, take an unsigned int and open-code the HARD_REG_SET operations. From-SVN: r275526
2019-09-09rs6000: Update rlwinm-[012].cSegher Boessenkool4-12/+18
gcc/testsuite/ * gcc.target/powerpc/rlwinm-0.c: Adjust expected instruction counts. * gcc.target/powerpc/rlwinm-1.c: Ditto. * gcc.target/powerpc/rlwinm-2.c: Ditto. From-SVN: r275525
2019-09-09Forgot Changelog from latest commit.Edward Smith-Rowland1-0/+7
From-SVN: r275524
2019-09-09Update docs for recent <span> and constexpr lib changes.Edward Smith-Rowland2-24/+21
2019-09-09 Edward Smith-Rowland <3dw4rd@verizon.net> Update docs for recent <span> and constexpr lib changes. * doc/xml/manual/status_cxx2020.xml: Update p0202r3, p0858r0, p0879r0, p1023r0, p1085r2 status. * doc/html/manual/status.html: Regenerate. From-SVN: r275522
2019-09-09Remove bt-load.cRichard Sandiford13-1676/+30
bt-load.c has AFAIK been dead code since the removal of the SH5 port in 2016. I have a patch series that would need to update the liveness tracking in a nontrivial way, so it seemed better to remove the pass rather than install an untested and probably bogus change. 2019-09-09 Richard Sandiford <richard.sandiford@arm.com> gcc/ * Makefile.in (OBJS): Remove bt-load.o. * doc/invoke.texi (fbranch-target-load-optimize): Delete. (fbranch-target-load-optimize2, fbtr-bb-exclusive): Likewise. * common.opt (fbranch-target-load-optimize): Mark as Ignore and document that the option no longer does anything. (fbranch-target-load-optimize2, fbtr-bb-exclusive): Likewise. * target.def (branch_target_register_class): Delete. (branch_target_register_callee_saved): Likewise. * doc/tm.texi.in (TARGET_BRANCH_TARGET_REGISTER_CLASS): Likewise. (TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED): Likewise. * doc/tm.texi: Regenerate. * tree-pass.h (make_pass_branch_target_load_optimize1): Delete. (make_pass_branch_target_load_optimize2): Likewise. * passes.def (pass_branch_target_load_optimize1): Likewise. (pass_branch_target_load_optimize2): Likewise. * targhooks.h (default_branch_target_register_class): Likewise. * targhooks.c (default_branch_target_register_class): Likewise. * opt-suggestions.c (test_completion_valid_options): Remove -fbtr-bb-exclusive from the list of test options. * bt-load.c: Remove. From-SVN: r275521
2019-09-09match.pd: Add flag_unsafe_math_optimizations check before deciding on the ↵Barnaby Wilks4-2/+77
widest type in... 2019-09-09 Barnaby Wilks <barnaby.wilks@arm.com> * match.pd: Add flag_unsafe_math_optimizations check before deciding on the widest type in a binary math operation. * gcc.dg/fold-binary-math-casts.c: New test. From-SVN: r275518
2019-09-09Update comment of removed options.Martin Liska4-25/+37
2019-09-09 Martin Liska <mliska@suse.cz> * config/i386/i386.opt: Update comment of removed options that are preserved only for backward compatibility. 2019-09-09 Martin Liska <mliska@suse.cz> * c.opt: Update comment of removed options that are preserved only for backward compatibility. From-SVN: r275517
2019-09-09Minor std::to_chars optimisation for base 10Antony Polukhin2-3/+8
__to_chars_10_impl is quite fast. According to the IACA the main loop takes only 6.0 cycles, the whole function with one iteration takes 10.0 cycles. Replacing the __first[pos] and __first[pos - 1] with __first[0] and __first[1] drops the function time to 7.53 cycles. 2019-09-09 Antony Polukhin <antoshkka@gmail.com> * include/bits/charconv.h (__detail::__to_chars_10_impl): Replace final offsets with constants. From-SVN: r275514
2019-09-09Improve constraints for std::span constructorsJonathan Wakely3-100/+155
This patch simplifies the constraints on the constructors from arrays by removing the redundant checks that element_type and value_type are convertible to element_type. The incorrect uses of __adl_data in those constructors are removed as well (they should use std::data not std::ranges::data, and the former doesn't use ADL). The range/container constructors are now constrained to exclude all specializations of std::span, not just the current instantiation. The range constructor now also checks s subset of the contiguous_range requirements. All relevant constructor constraints now use the _Require helper in order to short circuit and avoid unnecessary instantiations after the first failed constraint. A new constructor supports initialization from different specializations of std::span<OtherType, OtherExtent>, as specified in the C++20 draft. * include/bits/range_access.h (__adl_to_address): Remove. * include/std/span (__is_base_derived_safe_convertible_v): Replace with span::__is_compatible. (__is_std_array_v): Replace with __is_std_array class template and partial specializations. (__is_std_array, __is_std_span): New class templates and partial specializations. (span::__is_compatible): New alias template for SFINAE constraints. (span::span(element_type (&)[N])): Remove redundant constraints. Do not use __adl_data to obtain a pointer. (span::span(array<value_type, N>&)): Likewise. (span::span(const array<value_type, N>&)): Likewise. [_GLIBCXX_P1394] (span::iter_reference_t, span::iterator_t) (span::iter_value_t, span::derived_from): New alias templates for SFINAE constraints, until the equivalents are supported in <concepts> and <iterator>. [_GLIBCXX_P1394] (span::__is_compatible_iterator): New alias template for SFINAE constraints. [_GLIBCXX_P1394] (span::is_compatible_range): New class template for SFINAE constraints. [_GLIBCXX_P1394] (span::span(Range&&)): Improve constraints. [_GLIBCXX_P1394] (span::span(ContiguousIterator, Sentinel)): Likewise. Use std::to_address instead of __adl_to_address. [_GLIBCXX_P1394] (span::span(ContiguousIterator, size_type)): Likewise. [!_GLIBCXX_P1394] (span::__is_compatible_container): New alias template for SFINAE constraints. [!_GLIBCXX_P1394] (span::span(Container&)) (span::span(const Container&)): Improve constraints. [!_GLIBCXX_P1394] (span::span(pointer, size_type)) (span::span(pointer, pointer)): Remove redundant cast of pointer. (span(const span<OType, OExtent>&)): New constructor. From-SVN: r275513
2019-09-09re PR target/87853 (_mm_cmpgt_epi8 broken with -funsigned-char)Jakub Jelinek4-1/+28
PR target/87853 * config/i386/emmintrin.h (_mm_cmpeq_epi8): Use casts to __v16qi instead of __v16qs. * gcc.target/i386/pr87853.c: New test. From-SVN: r275508
2019-09-09re PR target/91704 ([X86] Codegen for _mm256_cmpgt_epi8 is affected by ↵Jakub Jelinek5-1/+28
-funsigned-char) PR target/91704 * config/i386/avxintrin.h (__v32qs): New typedef. * config/i386/avx2intrin.h (_mm256_cmpgt_epi8): Use casts to __v32qs instead of __v32qi. * gcc.target/i386/pr91704.c: New test. From-SVN: r275507
2019-09-09GCC port for eBPFJose E. Marchesi227-17/+5454
This patch series introduces a port of GCC to eBPF, which is a virtual machine that resides in the Linux kernel. Initially intended for user-level packet capture and filtering, eBPF is nowadays generalized to serve as a general-purpose infrastructure also for non-networking purposes. The binutils support is already upstream. See https://sourceware.org/ml/binutils/2019-05/msg00306.html. ChangeLog: * MAINTAINERS: Add myself as the maintainer of the eBPF port. Remove myself from Write After Approval section. * configure.ac: Support for bpf-*-* targets. * configure: Regenerate. contrib/ChangeLog: * config-list.mk (LIST): Disable go in bpf-*-* targets. gcc/ChangeLog: * doc/invoke.texi (Option Summary): Cover eBPF. (eBPF Options): New section. * doc/extend.texi (BPF Built-in Functions): Likewise. (BPF Kernel Helpers): Likewise. * config.gcc: Support for bpf-*-* targets. * common/config/bpf/bpf-common.c: New file. * config/bpf/t-bpf: Likewise. * config/bpf/predicates.md: Likewise. * config/bpf/constraints.md: Likewise. * config/bpf/bpf.opt: Likewise. * config/bpf/bpf.md: Likewise. * config/bpf/bpf.h: Likewise. * config/bpf/bpf.c: Likewise. * config/bpf/bpf-protos.h: Likewise. * config/bpf/bpf-opts.h: Likewise. * config/bpf/bpf-helpers.h: Likewise. * config/bpf/bpf-helpers.def: Likewise. gcc/testsuite/ChangeLog: * gcc.dg/builtins-config.h: eBPF doesn't support C99 standard functions. * gcc.c-torture/compile/20101217-1.c: Add a function prototype for printf. * gcc.c-torture/compile/20000211-1.c: Skip if target bpf-*-*. * gcc.c-torture/compile/poor.c: Likewise. * gcc.c-torture/compile/pr25311.c: Likewise. * gcc.c-torture/compile/pr39928-1.c: Likewise. * gcc.c-torture/compile/pr70061.c: Likewise. * gcc.c-torture/compile/920501-7.c: Likewise. * gcc.c-torture/compile/20000403-1.c: Likewise. * gcc.c-torture/compile/20001226-1.c: Likewise. * gcc.c-torture/compile/20030903-1.c: Likewise. * gcc.c-torture/compile/20031125-1.c: Likewise. * gcc.c-torture/compile/20040101-1.c: Likewise. * gcc.c-torture/compile/20040317-2.c: Likewise. * gcc.c-torture/compile/20040726-1.c: Likewise. * gcc.c-torture/compile/20051216-1.c: Likewise. * gcc.c-torture/compile/900313-1.c: Likewise. * gcc.c-torture/compile/920625-1.c: Likewise. * gcc.c-torture/compile/930421-1.c: Likewise. * gcc.c-torture/compile/930623-1.c: Likewise. * gcc.c-torture/compile/961004-1.c: Likewise. * gcc.c-torture/compile/980504-1.c: Likewise. * gcc.c-torture/compile/980816-1.c: Likewise. * gcc.c-torture/compile/990625-1.c: Likewise. * gcc.c-torture/compile/DFcmp.c: Likewise. * gcc.c-torture/compile/HIcmp.c: Likewise. * gcc.c-torture/compile/HIset.c: Likewise. * gcc.c-torture/compile/QIcmp.c: Likewise. * gcc.c-torture/compile/QIset.c: Likewise. * gcc.c-torture/compile/SFset.c: Likewise. * gcc.c-torture/compile/SIcmp.c: Likewise. * gcc.c-torture/compile/SIset.c: Likewise. * gcc.c-torture/compile/UHIcmp.c: Likewise. * gcc.c-torture/compile/UQIcmp.c: Likewise. * gcc.c-torture/compile/USIcmp.c: Likewise. * gcc.c-torture/compile/consec.c: Likewise. * gcc.c-torture/compile/limits-fndefn.c: Likewise. * gcc.c-torture/compile/lll.c: Likewise. * gcc.c-torture/compile/parms.c: Likewise. * gcc.c-torture/compile/pass.c: Likewise. * gcc.c-torture/compile/pp.c: Likewise. * gcc.c-torture/compile/pr32399.c: Likewise. * gcc.c-torture/compile/pr34091.c: Likewise. * gcc.c-torture/compile/pr34688.c: Likewise. * gcc.c-torture/compile/pr37258.c: Likewise. * gcc.c-torture/compile/pr37327.c: Likewise. * gcc.c-torture/compile/pr37381.c: Likewise. * gcc.c-torture/compile/pr37669-2.c: Likewise. * gcc.c-torture/compile/pr37669.c: Likewise. * gcc.c-torture/compile/pr37742-3.c: Likewise. * gcc.c-torture/compile/pr44063.c: Likewise. * gcc.c-torture/compile/pr48596.c: Likewise. * gcc.c-torture/compile/pr51856.c: Likewise. * gcc.c-torture/compile/pr54428.c: Likewise. * gcc.c-torture/compile/pr54713-1.c: Likewise. * gcc.c-torture/compile/pr54713-2.c: Likewise. * gcc.c-torture/compile/pr54713-3.c: Likewise. * gcc.c-torture/compile/pr55921.c: Likewise. * gcc.c-torture/compile/pr70240.c: Likewise. * gcc.c-torture/compile/pr70355.c: Likewise. * gcc.c-torture/compile/pr82052.c: Likewise. * gcc.c-torture/compile/pr83487.c: Likewise. * gcc.c-torture/compile/pr86122.c: Likewise. * gcc.c-torture/compile/pret-arg.c: Likewise. * gcc.c-torture/compile/regs-arg-size.c: Likewise. * gcc.c-torture/compile/structret.c: Likewise. * gcc.c-torture/compile/uuarg.c: Likewise. * gcc.dg/20001009-1.c: Likewise. * gcc.dg/20020418-1.c: Likewise. * gcc.dg/20020426-2.c: Likewise. * gcc.dg/20020430-1.c: Likewise. * gcc.dg/20040306-1.c: Likewise. * gcc.dg/20040622-2.c: Likewise. * gcc.dg/20050603-2.c: Likewise. * gcc.dg/20050629-1.c: Likewise. * gcc.dg/20061026.c: Likewise. * gcc.dg/Warray-bounds-3.c: Likewise. * gcc.dg/Warray-bounds-30.c: Likewise. * gcc.dg/Wframe-larger-than-2.c: Likewise. * gcc.dg/Wframe-larger-than.c: Likewise. * gcc.dg/Wrestrict-11.c: Likewise. * gcc.c-torture/compile/20000804-1.c: Likewise. * lib/target-supports.exp (check_effective_target_trampolines): Adapt to eBPF. (check_effective_target_indirect_jumps): Likewise. (check_effective_target_nonlocal_goto): Likewise. (check_effective_target_global_constructor): Likewise. (check_effective_target_return_address): Likewise. * gcc.target/bpf/bpf.exp: New file. * gcc.target/bpf/builtin-load.c: Likewise. * cc.target/bpf/constant-calls.c: Likewise. * gcc.target/bpf/diag-funargs.c: Likewise. * gcc.target/bpf/diag-funargs-2.c: Likewise. * gcc.target/bpf/diag-funargs-3.c: Likewise. * gcc.target/bpf/diag-indcalls.c: Likewise. * gcc.target/bpf/helper-bind.c: Likewise. * gcc.target/bpf/helper-bpf-redirect.c: Likewise. * gcc.target/bpf/helper-clone-redirect.c: Likewise. * gcc.target/bpf/helper-csum-diff.c: Likewise. * gcc.target/bpf/helper-csum-update.c: Likewise. * gcc.target/bpf/helper-current-task-under-cgroup.c: Likewise. * gcc.target/bpf/helper-fib-lookup.c: Likewise. * gcc.target/bpf/helper-get-cgroup-classid.c: Likewise. * gcc.target/bpf/helper-get-current-cgroup-id.c: Likewise. * gcc.target/bpf/helper-get-current-comm.c: Likewise. * gcc.target/bpf/helper-get-current-pid-tgid.c: Likewise. * gcc.target/bpf/helper-get-current-task.c: Likewise. * gcc.target/bpf/helper-get-current-uid-gid.c: Likewise. * gcc.target/bpf/helper-get-hash-recalc.c: Likewise. * gcc.target/bpf/helper-get-listener-sock.c: Likewise. * gcc.target/bpf/helper-get-local-storage.c: Likewise. * gcc.target/bpf/helper-get-numa-node-id.c: Likewise. * gcc.target/bpf/helper-get-prandom-u32.c: Likewise. * gcc.target/bpf/helper-get-route-realm.c: Likewise. * gcc.target/bpf/helper-get-smp-processor-id.c: Likewise. * gcc.target/bpf/helper-get-socket-cookie.c: Likewise. * gcc.target/bpf/helper-get-socket-uid.c: Likewise. * gcc.target/bpf/helper-getsockopt.c: Likewise. * gcc.target/bpf/helper-get-stack.c: Likewise. * gcc.target/bpf/helper-get-stackid.c: Likewise. * gcc.target/bpf/helper-ktime-get-ns.c: Likewise. * gcc.target/bpf/helper-l3-csum-replace.c: Likewise. * gcc.target/bpf/helper-l4-csum-replace.c: Likewise. * gcc.target/bpf/helper-lwt-push-encap.c: Likewise. * gcc.target/bpf/helper-lwt-seg6-action.c: Likewise. * gcc.target/bpf/helper-lwt-seg6-adjust-srh.c: Likewise. * gcc.target/bpf/helper-lwt-seg6-store-bytes.c: Likewise. * gcc.target/bpf/helper-map-delete-elem.c: Likewise. * gcc.target/bpf/helper-map-lookup-elem.c: Likewise. * gcc.target/bpf/helper-map-peek-elem.c: Likewise. * gcc.target/bpf/helper-map-pop-elem.c: Likewise. * gcc.target/bpf/helper-map-push-elem.c: Likewise. * gcc.target/bpf/helper-map-update-elem.c: Likewise. * gcc.target/bpf/helper-msg-apply-bytes.c: Likewise. * gcc.target/bpf/helper-msg-cork-bytes.c: Likewise. * gcc.target/bpf/helper-msg-pop-data.c: Likewise. * gcc.target/bpf/helper-msg-pull-data.c: Likewise. * gcc.target/bpf/helper-msg-push-data.c: Likewise. * gcc.target/bpf/helper-msg-redirect-hash.c: Likewise. * gcc.target/bpf/helper-msg-redirect-map.c: Likewise. * gcc.target/bpf/helper-override-return.c: Likewise. * gcc.target/bpf/helper-perf-event-output.c: Likewise. * gcc.target/bpf/helper-perf-event-read.c: Likewise. * gcc.target/bpf/helper-perf-event-read-value.c: Likewise. * gcc.target/bpf/helper-perf-prog-read-value.c: Likewise. * gcc.target/bpf/helper-probe-read.c: Likewise. * gcc.target/bpf/helper-probe-read-str.c: Likewise. * gcc.target/bpf/helper-probe-write-user.c: Likewise. * gcc.target/bpf/helper-rc-keydown.c: Likewise. * gcc.target/bpf/helper-rc-pointer-rel.c: Likewise. * gcc.target/bpf/helper-rc-repeat.c: Likewise. * gcc.target/bpf/helper-redirect-map.c: Likewise. * gcc.target/bpf/helper-set-hash.c: Likewise. * gcc.target/bpf/helper-set-hash-invalid.c: Likewise. * gcc.target/bpf/helper-setsockopt.c: Likewise. * gcc.target/bpf/helper-skb-adjust-room.c: Likewise. * gcc.target/bpf/helper-skb-cgroup-id.c: Likewise. * gcc.target/bpf/helper-skb-change-head.c: Likewise. * gcc.target/bpf/helper-skb-change-proto.c: Likewise. * gcc.target/bpf/helper-skb-change-tail.c: Likewise. * gcc.target/bpf/helper-skb-change-type.c: Likewise. * gcc.target/bpf/helper-skb-ecn-set-ce.c: Likewise. * gcc.target/bpf/helper-skb-get-tunnel-key.c: Likewise. * gcc.target/bpf/helper-skb-get-tunnel-opt.c: Likewise. * gcc.target/bpf/helper-skb-get-xfrm-state.c: Likewise. * gcc.target/bpf/helper-skb-load-bytes.c: Likewise. * gcc.target/bpf/helper-skb-load-bytes-relative.c: Likewise. * gcc.target/bpf/helper-skb-pull-data.c: Likewise. * gcc.target/bpf/helper-skb-set-tunnel-key.c: Likewise. * gcc.target/bpf/helper-skb-set-tunnel-opt.c: Likewise. * gcc.target/bpf/helper-skb-store-bytes.c: Likewise. * gcc.target/bpf/helper-skb-under-cgroup.c: Likewise. * gcc.target/bpf/helper-skb-vlan-pop.c: Likewise. * gcc.target/bpf/helper-skb-vlan-push.c: Likewise. * gcc.target/bpf/helper-skc-lookup-tcp.c: Likewise. * gcc.target/bpf/helper-sk-fullsock.c: Likewise. * gcc.target/bpf/helper-sk-lookup-tcp.c: Likewise. * gcc.target/bpf/helper-sk-lookup-upd.c: Likewise. * gcc.target/bpf/helper-sk-redirect-hash.c: Likewise. * gcc.target/bpf/helper-sk-redirect-map.c: Likewise. * gcc.target/bpf/helper-sk-release.c: Likewise. * gcc.target/bpf/helper-sk-select-reuseport.c: Likewise. * gcc.target/bpf/helper-sk-storage-delete.c: Likewise. * gcc.target/bpf/helper-sk-storage-get.c: Likewise. * gcc.target/bpf/helper-sock-hash-update.c: Likewise. * gcc.target/bpf/helper-sock-map-update.c: Likewise. * gcc.target/bpf/helper-sock-ops-cb-flags-set.c: Likewise. * gcc.target/bpf/helper-spin-lock.c: Likewise. * gcc.target/bpf/helper-spin-unlock.c: Likewise. * gcc.target/bpf/helper-strtol.c: Likewise. * gcc.target/bpf/helper-strtoul.c: Likewise. * gcc.target/bpf/helper-sysctl-get-current-value.c: Likewise. * gcc.target/bpf/helper-sysctl-get-name.c: Likewise. * gcc.target/bpf/helper-sysctl-get-new-value.c: Likewise. * gcc.target/bpf/helper-sysctl-set-new-value.c: Likewise. * gcc.target/bpf/helper-tail-call.c: Likewise. * gcc.target/bpf/helper-tcp-check-syncookie.c: Likewise. * gcc.target/bpf/helper-tcp-sock.c: Likewise. * gcc.target/bpf/helper-trace-printk.c: Likewise. * gcc.target/bpf/helper-xdp-adjust-head.c: Likewise. * gcc.target/bpf/helper-xdp-adjust-meta.c: Likewise. * gcc.target/bpf/helper-xdp-adjust-tail.c: Likewise. * gcc.target/bpf/skb-ancestor-cgroup-id.c: Likewise. * gcc.target/bpf/sync-fetch-and-add.c: Likewise. libgcc/ChangeLog: * config.host: Set cpu_type for bpf-*-* targets. * config/bpf/t-bpf: Likewise. * config/bpf/crtn.S: Likewise. * config/bpf/crti.S: New file. From-SVN: r275506
2019-09-09testsuite: new require effective target indirect_callsJose E. Marchesi53-0/+162
This patch adds a new dg_require_effective_target procedure to the testsuite infrastructure: indirect_calls. This new function tells whether a target supports calls to non-constant call targets. This patch also annotates the tests in the gcc.c-torture testuite that require support for indirect calls. gcc/ChangeLog: * doc/sourcebuild.texi (Effective-Target Keywords): Document indirect_calls. gcc/testsuite/ChangeLog: * lib/target-supports.exp (check_effective_target_indirect_calls): New proc. * gcc.c-torture/compile/20010102-1.c: Annotate with dg-require-effective-target indirect_calls. * gcc.c-torture/compile/20010107-1.c: Likewise. * gcc.c-torture/compile/20011109-1.c: Likewise. * gcc.c-torture/compile/20011218-1.c: Likewise. * gcc.c-torture/compile/20011229-1.c: Likewise. * gcc.c-torture/compile/20020129-1.c: Likewise. * gcc.c-torture/compile/20020320-1.c: Likewise. * gcc.c-torture/compile/20020706-1.c: Likewise. * gcc.c-torture/compile/20020706-2.c: Likewise. * gcc.c-torture/compile/20021205-1.c: Likewise. * gcc.c-torture/compile/20030921-1.c: Likewise. * gcc.c-torture/compile/20031023-1.c: Likewise. * gcc.c-torture/compile/20031023-2.c: Likewise. * gcc.c-torture/compile/20031023-3.c: Likewise. * gcc.c-torture/compile/20031023-4.c: Likewise. * gcc.c-torture/compile/20040614-1.c: Likewise. * gcc.c-torture/compile/20040909-1.c: Likewise. * gcc.c-torture/compile/20050122-1.c: Likewise. * gcc.c-torture/compile/20050202-1.c: Likewise. * gcc.c-torture/compile/20060208-1.c: Likewise. * gcc.c-torture/compile/20081108-1.c: Likewise. * gcc.c-torture/compile/20150327.c: Likewise. * gcc.c-torture/compile/920428-2.c: Likewise. * gcc.c-torture/compile/920928-5.c: Likewise. * gcc.c-torture/compile/930117-1.c: Likewise. * gcc.c-torture/compile/930607-1.c: Likewise. * gcc.c-torture/compile/991213-2.c: Likewise. * gcc.c-torture/compile/callind.c: Likewise. * gcc.c-torture/compile/calls-void.c: Likewise. * gcc.c-torture/compile/calls.c: Likewise. * gcc.c-torture/compile/pr21840.c: Likewise. * gcc.c-torture/compile/pr32139.c: Likewise. * gcc.c-torture/compile/pr35607.c: Likewise. * gcc.c-torture/compile/pr37433-1.c: Likewise. * gcc.c-torture/compile/pr37433.c: Likewise. * gcc.c-torture/compile/pr39941.c: Likewise. * gcc.c-torture/compile/pr40080.c: Likewise. * gcc.c-torture/compile/pr43635.c: Likewise. * gcc.c-torture/compile/pr43791.c: Likewise. * gcc.c-torture/compile/pr43845.c: Likewise. * gcc.c-torture/compile/pr44043.c: Likewise. * gcc.c-torture/compile/pr51694.c: Likewise. * gcc.c-torture/compile/pr77754-2.c: Likewise. * gcc.c-torture/compile/pr77754-3.c: Likewise. * gcc.c-torture/compile/pr77754-4.c: Likewise. * gcc.c-torture/compile/pr89663-2.c: Likewise. * gcc.c-torture/compile/pta-1.c: Likewise. * gcc.c-torture/compile/stack-check-1.c: Likewise. * gcc.dg/Walloc-size-larger-than-18.c: Likewise. From-SVN: r275505
2019-09-09testsuite: annotate c-torture/compile tests with dg-require-stack-sizeJose E. Marchesi32-0/+84
This patch annotates tests that make use of a significant a mount of stack space. Embedded and other restricted targets may have problems compiling and running these tests. Note that the annotations are in many cases not exact. testsuite/ChangeLog: * gcc.c-torture/compile/20000609-1.c: Annotate with dg-require-stack-size. * gcc.c-torture/compile/20000804-1.c: Likewise. * gcc.c-torture/compile/20020304-1.c: Likewise. * gcc.c-torture/compile/20020604-1.c: Likewise. * gcc.c-torture/compile/20021015-1.c: Likewise. * gcc.c-torture/compile/20050303-1.c: Likewise. * gcc.c-torture/compile/20060421-1.c: Likewise. * gcc.c-torture/compile/20071207-1.c: Likewise. * gcc.c-torture/compile/20080903-1.c: Likewise. * gcc.c-torture/compile/20121027-1.c: Likewise. * gcc.c-torture/compile/20151204.c: Likewise. * gcc.c-torture/compile/920501-12.c: Likewise. * gcc.c-torture/compile/920501-4.c: Likewise. * gcc.c-torture/compile/920723-1.c: Likewise. * gcc.c-torture/compile/921202-1.c: Likewise. * gcc.c-torture/compile/931003-1.c: Likewise. * gcc.c-torture/compile/931004-1.c: Likewise. * gcc.c-torture/compile/950719-1.c: Likewise. * gcc.c-torture/compile/951222-1.c: Likewise. * gcc.c-torture/compile/990517-1.c: Likewise. * gcc.c-torture/compile/bcopy.c: Likewise. * gcc.c-torture/compile/pr23929.c: Likewise. * gcc.c-torture/compile/pr25310.c: Likewise. * gcc.c-torture/compile/pr34458.c: Likewise. * gcc.c-torture/compile/pr39937.c: Likewise. * gcc.c-torture/compile/pr41181.c: Likewise. * gcc.c-torture/compile/pr41634.c: Likewise. * gcc.c-torture/compile/pr43415.c: Likewise. * gcc.c-torture/compile/pr43417.c: Likewise. * gcc.c-torture/compile/pr44788.c: Likewise. * gcc.c-torture/compile/sound.c: Likewise. From-SVN: r275504
2019-09-09opt-functions.awk: fix comparison of limit, begin and endJose E. Marchesi2-3/+9
The function integer_range_info makes sure that, if provided, the initial value fills in the especified range. However, it is necessary to convert the values to a numerical context before comparing, to make sure awk is using arithmetical order and not lexicographical order. gcc/ChangeLog: * opt-functions.awk (integer_range_info): Make sure values are in numeric context before operating with them. From-SVN: r275503
2019-09-09Update config.sub and config.guess.Jose E. Marchesi3-79/+240
* config.sub: Import upstream version 2019-06-30. * config.guess: Import upstream version 2019-07-24. From-SVN: r275502
2019-09-09Daily bump.GCC Administrator1-1/+1
From-SVN: r275501
2019-09-08genemit: Print file+line in the "Splitting with" messageSegher Boessenkool2-2/+12
It's tiresome to have to look in insn-emit.c to see where some split came from, so let's print that info to the dump file as well. But don't print the full path, just the basename, for greater readability. * genemit.c (gen_split): Print the filename and line number where the splitter (or peephole2) was defined, to the dump file. From-SVN: r275497
2019-09-08Daily bump.GCC Administrator1-1/+1
From-SVN: r275493
2019-09-07pr91684.c: Use effective-target arm_prefer_ldrd_strd.Bernd Edlinger2-1/+5
2019-09-07 Bernd Edlinger <bernd.edlinger@hotmail.de> * gcc.target/arm/pr91684.c: Use effective-target arm_prefer_ldrd_strd. From-SVN: r275489
2019-09-07decomp2.C: Add TLS options.David Edelsohn3-1/+7
* g++.dg/cpp2a/decomp2.C: Add TLS options. * gcc.target/powerpc/pr88233.c: Limit to lp64. From-SVN: r275488
2019-09-07re PR tree-optimization/91665 (ICE in build_vector_from_val, at tree.c:1904)Jakub Jelinek4-1/+30
PR tree-optimization/91665 * tree-vect-loop.c (vectorizable_reduction): Punt if base has type incompatible with the type of PHI result. * gcc.dg/vect/pr91665.c: New test. From-SVN: r275486
2019-09-07add PR target/91684 to ChangeLogBernd Edlinger2-0/+2
From-SVN: r275484
2019-09-07arm.c (arm_block_set_aligned_non_vect): Use gen_unaligned_storedi for 4-byte ↵Bernd Edlinger4-1/+28
aligned addresses. 2019-09-07 Bernd Edlinger <bernd.edlinger@hotmail.de> * config/arm/arm.c (arm_block_set_aligned_non_vect): Use gen_unaligned_storedi for 4-byte aligned addresses. testsuite: 2019-09-07 Bernd Edlinger <bernd.edlinger@hotmail.de> * gcc.target/arm/pr91684.c: New test. From-SVN: r275483
2019-09-07Daily bump.GCC Administrator1-1/+1
From-SVN: r275482
2019-09-06RISC-V: Re-enable -msave-restore for shared libraries.Jim Wilson4-12/+12
This re-enables -msave-restore for shared libraries, and uses the t-slibgcc-libgcc file to get the save-restore routines included directly in shared libraries so that we don't need to indirect through the PLT to reach them, which doesn't work. gcc/ * config/riscv/riscv.c (riscv_option_override): Revert 2019-08-30 change. libgcc/ * config.host (riscv*-*-linux*): Add t-slibgcc-libgcc to tmake_file. (riscv*-*-freebsd*): Likewise. From-SVN: r275478
2019-09-06rs6000: Delete UNSPEC_MV_CR_OV.Segher Boessenkool2-1/+4
This isn't used since 2018. (It's a remnant of paired single support). * config/rs6000/rs6000.md (unspec): Delete UNSPEC_MV_CR_OV. From-SVN: r275477
2019-09-06rs6000: Delete UNSPEC_FRSPSegher Boessenkool3-14/+6
This isn't used since 2012. (It's a remnant of RIOS support). * config/rs6000/rs6000.c (rs6000_rtx_costs) <case UNSPEC>: Delete. * config/rs6000/rs6000.md (unspec): Delete UNSPEC_FRSP. From-SVN: r275476
2019-09-06re PR target/91654 (Regressions of SPEC2017 rate caused by r274994)Uros Bizjak2-2/+9
PR target/91654 * config/i386/x86-tune-costs.h (skylake_cost): Raise the cost of SSE->integer and integer->SSE moves from 2 to 6. (core_cost): Ditto. From-SVN: r275475
2019-09-06libgo: update to Go 1.13beta1 releaseIan Lance Taylor1843-63545/+122494
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/193497 From-SVN: r275473
2019-09-06function.c (assign_parm_find_data_types): Use RECORD_OR_UNION_TYPE_P before ↵Jakub Jelinek3-7/+10
testing TYPE_TRANSPARENT_AGGR. * function.c (assign_parm_find_data_types): Use RECORD_OR_UNION_TYPE_P before testing TYPE_TRANSPARENT_AGGR. * calls.c (initialize_argument_information, load_register_parameters): Likewise. From-SVN: r275472
2019-09-06inf-compare-1.c: Skip AIX.David Edelsohn8-0/+15
* gcc.dg/torture/inf-compare-1.c: Skip AIX. * gcc.dg/torture/inf-compare-2.c: Skip AIX. * gcc.dg/torture/inf-compare-3.c: Skip AIX. * gcc.dg/torture/inf-compare-4.c: Skip AIX. * gcc.dg/torture/pr52451.c: Skip AIX. * gcc.dg/torture/pr68264.c: Skip AIX * gcc.dg/torture/pr91323.c: Skip AIX. From-SVN: r275464
2019-09-06Warray-bounds-4.C: Skip AIX.David Edelsohn5-1/+12
* g++.dg/warn/Warray-bounds-4.C: Skip AIX. * g++.dg/warn/Warray-bounds-8.C: Skip AIX. * g++.dg/opt/flifetime-dse2.C: XFAIL AIX. * g++.dg/opt/flifetime-dse4.C: XFAIL AIX. From-SVN: r275462
2019-09-06Fix testcase to not use LTO with -fvtable-verify.Caroline Tice2-1/+8
2019-09-05 Caroline Tice <cmtice@google.com> PR testsuite/91670 * g++.dg/ubsan/pr59415.C: Disable LTO, since test uses -fvtable-verify, and the two options are no longer allowed together. From-SVN: r275460
2019-09-06Define std::ssize for C++20 (P1227R2)Jonathan Wakely5-4/+92
* include/bits/range_access.h (ssize): Define for C++20. * testsuite/24_iterators/range_access_cpp20.cc: New test. * doc/xml/manual/status_cxx2020.xml: Update P1227R2 status. * doc/html/*: Regenerate. From-SVN: r275458
2019-09-06[preprocessor] Popping "" file namesNathan Sidwell4-3/+43
https://gcc.gnu.org/ml/gcc-patches/2019-08/msg02069.html New # semantics for popping to "" name. libcpp/ * directives.c (do_linemarker): Popping to "" name means get the name from the include stack.. From-SVN: r275457
2019-09-06[PATCH] Deprecate -frepo option.Nathan Sidwell3-18/+8
https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00379.html PR c++/91125 * cp-tree.h (IDENTIFIER_REPO_CHOSEN, DECL_REPO_AVAILABLE_P): Delete. (struct lang_decl_base): Remove repo_available_p. * decl.c (duplicate_decls): Don't copy DECL_REPO_AVAILABLE_P. From-SVN: r275456
2019-09-06[C++ PATCH] Reserve a decl_lang bitNathan Sidwell4-16/+16
https://gcc.gnu.org/ml/gcc-patches/2019-09/msg00365.html Reserve TREE_LANG_FLAG_3 for modules. gcc/cp/ * cp-tree.h (DECL_CONSTRUCTION_VTABLE_P): Delete. (DECL_NON_TRIVIALLY_INITIALIZED_P): Move to TREE_LANG_FLAG_6. * class.c (build_ctor_vtbl_group): Don't set DECL_CONSTRUCTION_VTABLE_P. * decl2.c (determine_visibility_from_class): Don't check DECL_CONSTRUCTION_VTABLE_P anymore. From-SVN: r275455
2019-09-06Fix GCC_LINUX_FUTEX to work with C99 compilersFlorian Weimer8-0/+25
Without this change, libstdc++ is built without futex symbols if GCC rejects implicit function declarations by default. From-SVN: r275454
2019-09-06[arm] Add missing predicated-short-it variants to cmp_and and cmp_ior patternsRichard Earnshaw2-22/+32
The cmp_and and cmp_ior patterns were missing a couple of short-it variants for thumb2, where the comparisons are all using registers some of which were HI_REGS. * config/arm/arm.md (cmp_and): Add short-it variant for thumb2 with high regs. (cmp_ior): Likewise. From-SVN: r275453
2019-09-06Improve documentation of for statement.Martin Liska2-2/+6
2019-09-06 Martin Liska <mliska@suse.cz> * doc/match-and-simplify.texi: Separate tuples with ;. From-SVN: r275452
2019-09-06Remove support for repo files (PR c++/91125).Martin Liska45-1855/+112
2019-09-06 Martin Liska <mliska@suse.cz> PR c++/91125 * Makefile.in: Remove tlink.o. * collect2.c (do_link): New function isolated from do_tlink. (main): Use. * collect2.h (do_tlink): Remove declaration of do_tlink. * doc/extend.texi: Remove documentation of -frepo. * doc/invoke.texi: Likewise. * doc/sourcebuild.texi: Remove cleanup-repo-files. * tlink.c: Remove. 2019-09-06 Martin Liska <mliska@suse.cz> PR c++/91125 * c-common.c: Remove definition of flag_use_repository. * c-common.h: Likewise. * c-opts.c (c_common_handle_option): Do not handle OPT_frepo option. * c.opt: Mark the option with Deprecated. 2019-09-06 Martin Liska <mliska@suse.cz> PR c++/91125 * Make-lang.in: Remove repo.o. * config-lang.in: Likewise. * cp-tree.h (init_repo): Remove declarations of repo-related functions. (repo_emit_p): Likewise. (repo_export_class_p): Likewise. (finish_repo): Likewise. * decl2.c (import_export_class): Always set -1 value/ (mark_needed): Remove -frepo from comment. (import_export_decl): Similarly here. (c_parse_final_cleanups): Remove call of finish_repo. * lex.c (cxx_init): Remove call to init_repo. * optimize.c (can_alias_cdtor): Remove dead condition. * pt.c (push_template_decl_real): Update comment. (instantiate_decl): Remove dead code used for -frepo. * repo.c: Remove. 2019-09-06 Martin Liska <mliska@suse.cz> PR c++/91125 * g++.dg/parse/repo1.C: Remove. * g++.dg/rtti/repo1.C: Remove. * g++.dg/template/repo1.C: Remove. * g++.dg/template/repo10.C: Remove. * g++.dg/template/repo11.C: Remove. * g++.dg/template/repo2.C: Remove. * g++.dg/template/repo3.C: Remove. * g++.dg/template/repo4.C: Remove. * g++.dg/template/repo5.C: Remove. * g++.dg/template/repo6.C: Remove. * g++.dg/template/repo7.C: Remove. * g++.dg/template/repo8.C: Remove. * g++.dg/template/repo9.C: Remove. * g++.old-deja/g++.pt/instantiate4.C: Remove. * g++.old-deja/g++.pt/instantiate6.C: Remove. * g++.old-deja/g++.pt/repo1.C: Remove. * g++.old-deja/g++.pt/repo2.C: Remove. * g++.old-deja/g++.pt/repo3.C: Remove. * g++.old-deja/g++.pt/repo4.C: Remove. * lib/g++.exp: Remove removal of repo files. * lib/gcc-dg.exp: Likewise. * lib/obj-c++.exp: Likewise. From-SVN: r275450
2019-09-06Daily bump.GCC Administrator1-1/+1
From-SVN: r275449
2019-09-05RISC-V: Fix bad insn splits with paradoxical subregs.Jakub Jelinek6-9/+125
Shifting by more than the size of a SUBREG_REG doesn't work, so we either need to disable splits if an input is paradoxical, or else we need to generate a clean temporary for intermediate results. Jakub wrote the first version of this patch, so gets primary credit for it. gcc/ PR target/91635 * config/riscv/riscv.md (zero_extendsidi2, zero_extendhi<GPR:mode>2, extend<SHORT:mode><SUPERQI:mode>2): Don't split if paradoxical_subreg_p (operands[0]). (*lshrsi3_zero_extend_3+1, *lshrsi3_zero_extend_3+2): Add clobber and use as intermediate value. gcc/testsuite/ PR target/91635 * gcc.c-torture/execute/pr91635.c: New test. * gcc.target/riscv/shift-shift-4.c: New test. * gcc.target/riscv/shift-shift-5.c: New test. Co-Authored-By: Jim Wilson <jimw@sifive.com> From-SVN: r275444
2019-09-05re PR fortran/91496 (!GCC$ directives error if mistyped or unknown)Harald Anlauf4-5/+17
2019-09-05 Harald Anlauf <anlauf@gmx.de> PR fortran/91496 * parse.c (parse_executable): Improve error messages for improperly placed pragmas not preceeding a loop. PR fortran/91496 * gfortran.dg/directive_unroll_5.f90: Adjust error message. From-SVN: r275442
2019-09-05re PR fortran/91660 (Missing error on invalid type declaration)Steven G. Kargl6-7/+53
2019-09-05 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/91660 * decl.c (gfc_match_decl_type_spec): Improve and restore error message for malformed types-spec. 2019-09-05 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/91660 * gfortran.dg/pdt_4.f03: Fix invalid code. * gfortran.dg/pr91660_1.f90: New test. * gfortran.dg/pr91660_2.f90: Ditto. From-SVN: r275426
2019-09-05PR c++/91644 - ICE with constinit in function template.Marek Polacek5-3/+63
* decl.c (start_decl): Call retrofit_lang_decl for constinit variables. * pt.c (tsubst_expr): Pass LOOKUP_CONSTINIT down to cp_finish_decl for constinit variables. * g++.dg/cpp2a/constinit13.C: New test. From-SVN: r275421
2019-09-05Global GCN instructions need nops too.Andrew Stubbs2-2/+7
2019-09-05 Andrew Stubbs <ams@codesourcery.com> gcc/ * config/gcn/gcn.md (*movti_insn): Set delayeduse for global_store. (sync_compare_and_swap<mode>_insn): Likewise. From-SVN: r275414
2019-09-05Improve precondition checks for std::spanJonathan Wakely26-123/+733
* doc/xml/manual/status_cxx2020.xml: Update status for P0122R7 and P1024R3. Remove entry for P0920R2. * include/std/span (__cpp_lib_span): Change value. (__extent_storage, __extent_storage<dynamic_extent>): Remove default constructor. (span): Replace __extent_storage base class with data member. (span::_S_subspan_extent): New function. (span::empty()): Add nodiscard attribute. (span::front, span::back, span::operator[]): Check preconditions. (span::first, span::last, span::subspan): Add noexcept. Improve precondition checks (LWG 3103). (get): Remove redundant condition from static_assert. (tuple_element<I, span<T, E>>): Fix static_assert message and simplify. (as_writable_bytes): Add inline specifier. * include/std/version (__cpp_lib_span): Change value. * testsuite/23_containers/span/back_neg.cc: Remove stray semi-colon. * testsuite/23_containers/span/front_neg.cc: Likewise. * testsuite/23_containers/span/index_op_neg.cc: Likewise. * testsuite/23_containers/span/last_neg.cc: Improve test. * testsuite/23_containers/span/subspan_neg.cc: Likewise. * testsuite/23_containers/span/1.cc: New test. * testsuite/23_containers/span/2.cc: New test. * testsuite/23_containers/span/back_assert_neg.cc: New test. * testsuite/23_containers/span/first_2_assert_neg.cc: New test. * testsuite/23_containers/span/first_assert_neg.cc: New test. * testsuite/23_containers/span/first_neg.cc: New test. * testsuite/23_containers/span/front_assert_neg.cc: New test. * testsuite/23_containers/span/index_op_assert_neg.cc: New test. * testsuite/23_containers/span/last_2_assert_neg.cc: New test. * testsuite/23_containers/span/last_assert_neg.cc: New test. * testsuite/23_containers/span/subspan_2_assert_neg.cc: New test. * testsuite/23_containers/span/subspan_3_assert_neg.cc: New test. * testsuite/23_containers/span/subspan_4_assert_neg.cc: New test. * testsuite/23_containers/span/subspan_5_assert_neg.cc: New test. * testsuite/23_containers/span/subspan_6_assert_neg.cc: New test. * testsuite/23_containers/span/subspan_assert_neg.cc: New test. From-SVN: r275411
2019-09-05re PR target/91615 ([armeb] ICEs since r274986)Bernd Edlinger2-14/+25
2019-09-05 Bernd Edlinger <bernd.edlinger@hotmail.de> PR middle-end/91615 * expr.c (expand_expr_real_1): Handle misaligned TARGET_MEM_REF without movmisalign optab. From-SVN: r275409
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