and though bugs are the bane of my existence, rest assured the wretched thing will get the best of care here

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  9. 14 Feb, 2019 21 commits
    • David Malcolm's avatar
      C++ concepts: fix ICE with requires on dtors (PR c++/89036) · de0fecd9
      David Malcolm authored
      PR c++/89036 reports an ICE due to this assertion failing
      
      1136	  /* A class should never have more than one destructor.  */
      1137	  gcc_assert (!current_fns || via_using || !DECL_DESTRUCTOR_P (method));
      
      on this template with a pair of dtors, with
      mutually exclusive "requires" clauses:
      
      template<typename T>
      struct Y {
          ~Y() requires(true) = default;
          ~Y() requires(false) {}
      };
      
      Nathan introduced this assertion as part of:
      
        ca9219bf18c68a001d62ecb981bc9176b0feaf12 (aka r251340):
          2017-08-24  Nathan Sidwell  <nathan@acm.org>
             Conversion operators kept on single overload set
      
      which, amongst other changes to add_method had this:
           /* A class should never have more than one destructor.  */
        -  if (current_fns && DECL_MAYBE_IN_CHARGE_DESTRUCTOR_P (method))
        -    return false;
        +  gcc_assert (!current_fns || !DECL_DESTRUCTOR_P (method));
      
      The following patch drops the assertion.
      
      gcc/cp/ChangeLog:
      	2019-02-13  David Malcolm  <dmalcolm@redhat.com>
      	Backport of r268847 from trunk.
      
      	PR c++/89036
      	* class.c (add_method): Drop destructor assertion.
      
      gcc/testsuite/ChangeLog:
      	2019-02-13  David Malcolm  <dmalcolm@redhat.com>
      	Backport of r268847 from trunk.
      
      	PR c++/89036
      	* g++.dg/concepts/pr89036.C: New test.
      
      From-SVN: r268916
      de0fecd9
    • David Malcolm's avatar
      Fix ICE on class-template argument deduction (PR c++/88795) · 2a6473c6
      David Malcolm authored
      PR c++/88795 reports an ICE building a function_type for a deduction guide
      when the substitution into the function signature fails, due to an
      error_mark_node being returned from tsubst_arg_types but not being checked
      for.  This error_mark_node gets used as the TYPE_ARG_TYPES, leading to
      ICEs in various places that assume this is a TREE_LIST.
      
      This patch checks the result of tsubst_arg_types and propagates the failure
      if it returns error_mark_node.  It also adds an assertion to
      build_function_type, to fail faster if passed in error_mark_node.
      
      gcc/cp/ChangeLog:
      	Backport of r267957 from trunk.
      	2019-01-15  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/88795
      	* pt.c (build_deduction_guide): Bail out if tsubst_arg_types
      	fails.
      
      gcc/testsuite/ChangeLog:
      	Backport of r267957 from trunk.
      	2019-01-15  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/88795
      	* g++.dg/template/pr88795.C: New test.
      
      gcc/ChangeLog:
      	Backport of r267957 from trunk.
      	2019-01-15  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/88795
      	* tree.c (build_function_type): Assert that arg_types is not
      	error_mark_node.
      
      From-SVN: r268915
      2a6473c6
    • Jakub Jelinek's avatar
      re PR rtl-optimization/89354 (Combine pass yields wrong code with -O2 and -msse2 for 32bit target) · b375be6b
      Jakub Jelinek authored
      	PR rtl-optimization/89354
      	* combine.c (make_extraction): Punt if extraction_mode is narrower
      	than len bits.
      
      	* gcc.dg/pr89354.c: New test.
      
      From-SVN: r268914
      b375be6b
    • David Malcolm's avatar
      Fix memory leak in selftest::test_expansion_to_rtl · 3cbf0ab8
      David Malcolm authored
      "make selftest-valgrind" shows:
      
      187 bytes in 1 blocks are definitely lost in loss record 567 of 669
          at 0x4A081D4: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
          by 0x1F08260: xcalloc (xmalloc.c:162)
          by 0xB24F32: init_emit() (emit-rtl.c:5843)
          by 0xC10080: prepare_function_start() (function.c:4803)
          by 0xC10254: init_function_start(tree_node*) (function.c:4877)
          by 0x1CDF92A: selftest::test_expansion_to_rtl() (function-tests.c:595)
          by 0x1CE007C: selftest::function_tests_c_tests() (function-tests.c:676)
          by 0x1E010E7: selftest::run_tests() (selftest-run-tests.c:98)
          by 0x1062D1E: toplev::run_self_tests() (toplev.c:2225)
          by 0x1062F40: toplev::main(int, char**) (toplev.c:2303)
          by 0x1E5B90A: main (main.c:39)
      
      The allocation in question is:
      
        crtl->emit.regno_pointer_align
          = XCNEWVEC (unsigned char, crtl->emit.regno_pointer_align_length);
      
      This patch fixes this leak (and makes the output of
      "make selftest-valgrind" clean) by calling free_after_compilation at the
      end of the selftest in question.
      
      gcc/ChangeLog:
      	Backport of r263339 from trunk.
      	2018-08-06  David Malcolm  <dmalcolm@redhat.com>
      
      	* function-tests.c (selftest::test_expansion_to_rtl): Call
      	free_after_compilation.
      
      From-SVN: r268912
      3cbf0ab8
    • David Malcolm's avatar
      docs: fix stray duplicated words · 533594b5
      David Malcolm authored
      gcc/ChangeLog:
      	Backport of r263295 from trunk.
      	2018-08-03  David Malcolm  <dmalcolm@redhat.com>
      
      	* doc/gcov.texi (-x): Remove duplicate "to".
      	* doc/invoke.texi (-Wnoexcept-type): Remove duplicate "calls".
      	(-Wif-not-aligned): Remove duplicate "is".
      	(-flto): Remove duplicate "the".
      	(MicroBlaze Options): In examples of "-mcpu=cpu-type", remove
      	duplicate "v5.00.b".
      	(MSP430 Options): Remove duplicate "and" from the description
      	of "-mgprel-sec=regexp".
      	(x86 Options): Remove duplicate copies of "vmldLog102" and
      	vmlsLog104 from description of "-mveclibabi=type".
      
      From-SVN: r268911
      533594b5
    • David Malcolm's avatar
      Fix memory leak of pretty_printer prefixes · 873b9e02
      David Malcolm authored
      We were rather sloppy about handling the ownership of prefixes for
      pretty_printer, and this lead to a memory leak for any time a
      diagnostic_show_locus call emits multiple line spans.
      
      This showed up in "make selftest-valgrind" as:
      
      3,976 bytes in 28 blocks are definitely lost in loss record 632 of 669
         at 0x4A0645D: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
         by 0x1F08227: xmalloc (xmalloc.c:147)
         by 0x1F083E6: xvasprintf (xvasprintf.c:58)
         by 0x1E7EC7D: build_message_string(char const*, ...) (diagnostic.c:78)
         by 0x1E7F438: diagnostic_get_location_text(diagnostic_context*, expanded_location) (diagnostic.c:328)
         by 0x1E7FD54: default_diagnostic_start_span_fn(diagnostic_context*, expanded_location) (diagnostic.c:626)
         by 0x1EB3508: selftest::test_diagnostic_context::start_span_cb(diagnostic_context*, expanded_location) (selftest-diagnostic.c:57)
         by 0x1E89215: diagnostic_show_locus(diagnostic_context*, rich_location*, diagnostic_t) (diagnostic-show-locus.c:1992)
         by 0x1E8ECAD: selftest::test_fixit_insert_containing_newline_2(selftest::line_table_case const&) (diagnostic-show-locus.c:3044)
         by 0x1EB0606: selftest::for_each_line_table_case(void (*)(selftest::line_table_case const&)) (input.c:3525)
         by 0x1E8F3F5: selftest::diagnostic_show_locus_c_tests() (diagnostic-show-locus.c:3164)
         by 0x1E010BF: selftest::run_tests() (selftest-run-tests.c:88)
      
      4,004 bytes in 28 blocks are definitely lost in loss record 633 of 669
         at 0x4A0645D: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
         by 0x1F08227: xmalloc (xmalloc.c:147)
         by 0x1F083E6: xvasprintf (xvasprintf.c:58)
         by 0x1E7EC7D: build_message_string(char const*, ...) (diagnostic.c:78)
         by 0x1E7F438: diagnostic_get_location_text(diagnostic_context*, expanded_location) (diagnostic.c:328)
         by 0x1E7FD54: default_diagnostic_start_span_fn(diagnostic_context*, expanded_location) (diagnostic.c:626)
         by 0x1EB3508: selftest::test_diagnostic_context::start_span_cb(diagnostic_context*, expanded_location) (selftest-diagnostic.c:57)
         by 0x1E89215: diagnostic_show_locus(diagnostic_context*, rich_location*, diagnostic_t) (diagnostic-show-locus.c:1992)
         by 0x1E8B373: selftest::test_diagnostic_show_locus_fixit_lines(selftest::line_table_case const&) (diagnostic-show-locus.c:2500)
         by 0x1EB0606: selftest::for_each_line_table_case(void (*)(selftest::line_table_case const&)) (input.c:3525)
         by 0x1E8F3B9: selftest::diagnostic_show_locus_c_tests() (diagnostic-show-locus.c:3159)
         by 0x1E010BF: selftest::run_tests() (selftest-run-tests.c:88)
      
      This patch fixes the leaks by ensuring that the pretty_printer "owns"
      the prefix if it's non-NULL, freeing it in the dtor and in pp_set_prefix.
      
      gcc/cp/ChangeLog:
      	Backport of r263275 from trunk.
      	2018-08-02  David Malcolm  <dmalcolm@redhat.com>
      
      	* error.c (cxx_print_error_function): Duplicate "file" before
      	passing it to pp_set_prefix.
      	(cp_print_error_function): Use pp_take_prefix when saving the
      	existing prefix.
      
      gcc/ChangeLog:
      	Backport of r263275 from trunk.
      	2018-08-02  David Malcolm  <dmalcolm@redhat.com>
      
      	* diagnostic-show-locus.c (diagnostic_show_locus): Use
      	pp_take_prefix when saving the existing prefix.
      	* diagnostic.c (diagnostic_append_note): Likewise.
      	* langhooks.c (lhd_print_error_function): Likewise.
      	* pretty-print.c (pp_set_prefix): Drop the "const" from "prefix"
      	param's type.  Free the existing prefix.
      	(pp_take_prefix): New function.
      	(pretty_printer::pretty_printer): Drop the prefix parameter.
      	Rename the length parameter to match the comment.
      	(pretty_printer::~pretty_printer): Free the prefix.
      	* pretty-print.h (pretty_printer::pretty_printer): Drop the prefix
      	parameter.
      	(struct pretty_printer): Drop the "const" from "prefix" field's
      	type and clarify memory management.
      	(pp_set_prefix): Drop the "const" from the 2nd param.
      	(pp_take_prefix): New decl.
      
      From-SVN: r268910
      873b9e02
    • David Malcolm's avatar
      C++: don't offer bogus "._0" suggestions (PR c++/86329) · 96ca9b2f
      David Malcolm authored
      PR c++/86329 reports that the C++ frontend can offer bogus suggestions like:
      
        #include <string>
      
        int compare()
        {
          return __n1 - __n2;
        }
      
      suggested.cc: In function 'int compare()':
      suggested.cc:5:10: error: '__n1' was not declared in this scope
         return __n1 - __n2;
                ^~~~
      suggested.cc:5:10: note: suggested alternative: '._61'
         return __n1 - __n2;
                ^~~~
                ._61
      suggested.cc:5:17: error: '__n2' was not declared in this scope
         return __n1 - __n2;
                       ^~~~
      suggested.cc:5:17: note: suggested alternative: '._72'
         return __n1 - __n2;
                       ^~~~
                       ._72
      
      The dot-prefixed names are an implementation detail of how we implement
      anonymous enums found in the header files, generated via
      anon_aggrname_format in make_anon_name.
      
      This patch uses anon_aggrname_p to filter them out when considering
      which names to suggest.
      
      gcc/cp/ChangeLog:
      	Backport of r262199 from trunk.
      	2018-06-27  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/86329
      	* name-lookup.c (consider_binding_level): Filter out names that
      	match anon_aggrname_p.
      
      gcc/testsuite/ChangeLog:
      	Backport of r262199 from trunk.
      	2018-06-27  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/86329
      	* g++.dg/lookup/pr86329.C: New test.
      
      From-SVN: r268909
      96ca9b2f
    • David Malcolm's avatar
      Don't offer suggestions for compiler-generated variables (PR c++/85515) · 8d705c02
      David Malcolm authored
      gcc/cp/ChangeLog:
      	Backport of r259720 from trunk.
      	2018-04-27  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/85515
      	* name-lookup.c (consider_binding_level): Skip compiler-generated
      	variables.
      	* search.c (lookup_field_fuzzy_info::fuzzy_lookup_field): Flatten
      	nested if statements into a series of rejection tests.  Reject
      	lambda-ignored entities as suggestions.
      
      gcc/testsuite/ChangeLog:
      	Backport of r259720 from trunk.
      	2018-04-27  David Malcolm  <dmalcolm@redhat.com>
      
      	PR c++/85515
      	* g++.dg/pr85515-1.C: New test.
      	* g++.dg/pr85515-2.C: New test.
      
      From-SVN: r268908
      8d705c02
    • Segher Boessenkool's avatar
      backport: re PR target/86684 (ICE in extract_insn, at recog.c:2304 on ppc64le) · 346de905
      Segher Boessenkool authored
      	Backport from trunk
      	2018-08-31  Segher Boessenkool  <segher@kernel.crashing.org>
      
      	PR target/86684
      	PR target/87149
      	* config/rs6000/rs6000.md (lround<mode>di2): Gate on TARGET_FPRND.
      
      From-SVN: r268890
      346de905
    • Segher Boessenkool's avatar
      backport: re PR target/88892 (Double-to-float conversion uses wrong rounding... · e469964f
      Segher Boessenkool authored
      backport: re PR target/88892 (Double-to-float conversion uses wrong rounding mode when followed by memcpy)
      
      	Backport from trunk
      	2019-01-18  Segher Boessenkool  <segher@kernel.crashing.org>
      
      	PR target/88892
      	* config/rs6000/rs6000.md (*movsi_from_df): Allow only register
      	operands.
      
      From-SVN: r268889
      e469964f
    • Segher Boessenkool's avatar
      backport: re PR rtl-optimization/85805 (Wrong code for 64 bit comparisons on avr-gcc) · aecd55e2
      Segher Boessenkool authored
      	Backport from trunk
      	2018-07-26  Segher Boessenkool  <segher@kernel.crashing.org>
      
      	PR rtl-optimization/85805
      	* combine.c (reg_nonzero_bits_for_combine): Only use the last set
      	value for hard registers if that was written in the same mode.
      
      From-SVN: r268888
      aecd55e2
    • Martin Liska's avatar
      Backport r268873 · 247a8293
      Martin Liska authored
      2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	Backport from mainline
      	2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	PR rtl-optimization/89242
      	* dce.c (delete_unmarked_insns): Call free_dominance_info we
      	process a transformation.
      2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	Backport from mainline
      	2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	PR rtl-optimization/89242
      	* g++.dg/pr89242.C: New test.
      
      From-SVN: r268876
      247a8293
    • Jonathan Wakely's avatar
      PR middle-end/89303 add testcase for std::enable_shared_from_this · a142f0b7
      Jonathan Wakely authored
      	* testsuite/20_util/enable_shared_from_this/89303.cc: New test.
      
      From-SVN: r268874
      a142f0b7
    • Martin Liska's avatar
      Backport r268835 · 3ede27b7
      Martin Liska authored
      2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	Backport from mainline
      	2019-02-13  Martin Liska  <mliska@suse.cz>
      
      	PR lto/88858
      	* cfgrtl.c (remove_barriers_from_footer): New function.
      	(try_redirect_by_replacing_jump): Use it.
      	(cfg_layout_redirect_edge_and_branch): Likewise.
      
      From-SVN: r268872
      3ede27b7
    • Martin Liska's avatar
      Backport r268762 · 46facf7c
      Martin Liska authored
      2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	Backport from mainline
      	2019-02-11  Martin Liska  <mliska@suse.cz>
      
      	PR ipa/89009
      	* ipa-cp.c (build_toporder_info): Remove usage of a param.
      	* ipa-inline.c (inline_small_functions): Likewise.
      	* ipa-pure-const.c (propagate_pure_const): Likewise.
      	(propagate_nothrow): Likewise.
      	* ipa-reference.c (propagate): Likewise.
      	* ipa-utils.c (struct searchc_env): Remove unused field.
      	(searchc): Always search across AVAIL_INTERPOSABLE.
      	(ipa_reduced_postorder): Always allow AVAIL_INTERPOSABLE as
      	the only called IPA pure const can properly not propagate
      	across interposable boundary.
      	* ipa-utils.h (ipa_reduced_postorder): Remove param.
      2019-02-14  Martin Liska  <mliska@suse.cz>
      
      	Backport from mainline
      	2019-02-11  Martin Liska  <mliska@suse.cz>
      
      	PR ipa/89009
      	* g++.dg/ipa/pr89009.C: New test.
      
      From-SVN: r268871
      46facf7c
    • Jakub Jelinek's avatar
      re PR tree-optimization/89314 (ICE in wide_int_to_tree_1, at tree.c:1561) · 3fc33cd4
      Jakub Jelinek authored
      	PR tree-optimization/89314
      	* fold-const.c (fold_binary_loc): Cast strlen argument to
      	const char * before dereferencing it.  Formatting fixes.
      
      	* gcc.dg/pr89314.c: New test.
      
      From-SVN: r268870
      3fc33cd4
    • Jakub Jelinek's avatar
      backport: re PR middle-end/89303 (memory leak with shared_ptr and enable_shared_from_this) · 3319162e
      Jakub Jelinek authored
      	Backported from mainline
      	2019-02-13  Jakub Jelinek  <jakub@redhat.com>
      
      	PR middle-end/89303
      	* tree-ssa-structalias.c (set_uids_in_ptset): Or in vi->is_heap_var
      	into pt->vars_contains_escaped_heap instead of setting
      	pt->vars_contains_escaped_heap to it.
      
      	2019-02-13  Jonathan Wakely  <jwakely@redhat.com>
      		    Jakub Jelinek  <jakub@redhat.com>
      
      	PR middle-end/89303
      	* g++.dg/torture/pr89303.C: New test.
      
      From-SVN: r268866
      3319162e
    • Jakub Jelinek's avatar
      backport: re PR middle-end/89281 (gcc/optabs.c:3901:30: runtime error: shift... · a6f2048f
      Jakub Jelinek authored
      backport: re PR middle-end/89281 (gcc/optabs.c:3901:30: runtime error: shift exponent 32 is too large for 32-bit type 'int')
      
      	Backported from mainline
      	2019-02-13  Jakub Jelinek  <jakub@redhat.com>
      
      	PR middle-end/89281
      	* optabs.c (prepare_cmp_insn): Use UINTVAL (size) instead of
      	INTVAL (size), compare it to GET_MODE_MASK instead of
      	1 << GET_MODE_BITSIZE.
      
      From-SVN: r268865
      a6f2048f
    • Jakub Jelinek's avatar
      backport: re PR target/89290 (ICE in change_address_1, at emit-rtl.c:2286) · 2c1b2a9f
      Jakub Jelinek authored
      	Backported from mainline
      	2019-02-13  Jakub Jelinek  <jakub@redhat.com>
      
      	PR target/89290
      	* config/i386/predicates.md (x86_64_immediate_operand): Allow
      	TLS UNSPECs offsetted by signed 32-bit CONST_INT even with
      	-mcmodel=large.
      
      	* gcc.target/i386/pr89290.c: New test.
      
      From-SVN: r268864
      2c1b2a9f
    • Jakub Jelinek's avatar
      backport: re PR middle-end/89246 (LTO produces references to cloned symbols... · bdaf4885
      Jakub Jelinek authored
      backport: re PR middle-end/89246 (LTO produces references to cloned symbols which the compiler failed to clone)
      
      	Backported from mainline
      	2019-02-09  Jakub Jelinek  <jakub@redhat.com>
      
      	PR middle-end/89246
      	* config/i386/i386.c (ix86_simd_clone_compute_vecsize_and_simdlen):
      	If !node->definition and TYPE_ARG_TYPES is non-NULL, use
      	TYPE_ARG_TYPES instead of DECL_ARGUMENTS.
      
      	* gcc.dg/gomp/pr89246-1.c: New test.
      	* gcc.dg/gomp/pr89246-2.c: New test.
      
      From-SVN: r268863
      bdaf4885
    • GCC Administrator's avatar
      Daily bump. · 986d687f
      GCC Administrator authored
      From-SVN: r268858
      986d687f
  10. 13 Feb, 2019 3 commits
    • Bill Schmidt's avatar
      backport: rs6000.c (rs6000_gimple_fold_builtin): Shift-right and shift-left... · 25fd8e01
      Bill Schmidt authored
      backport: rs6000.c (rs6000_gimple_fold_builtin): Shift-right and shift-left vector built-ins need to include a TRUNC_MOD_EXPR...
      
      [gcc]
      
      2019-02-13  Bill Schmidt  <wschmidt@linux.ibm.com>
      
      	Backport from mainline
      	2019-02-11  Bill Schmidt  <wschmidt@linux.ibm.com>
      
      	* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Shift-right
      	and shift-left vector built-ins need to include a TRUNC_MOD_EXPR
      	for correct semantics.
      
      [gcc/testsuite]
      
      2019-02-13  Bill Schmidt  <wschmidt@linux.ibm.com>
      
      	Backport from mainline
      	2019-02-11  Bill Schmidt  <wschmidt@linux.ibm.com>
      
      	* gcc.target/powerpc/vec-sld-modulo.c: New.
      	* gcc.target/powerpc/vec-srad-modulo.c: New.
      	* gcc.target/powerpc/vec-srd-modulo.c: New.
      
      	2018-01-12  Bill Schmidt  <wschmidt@linux.ibm.com>
      
      	* gcc.target/powerpc/vec-sld-modulo.c: Require p8vector_hw.
      	* gcc.target/powerpc/vec-srad-modulo.c: Likewise.
      	* gcc.target/powerpc/vec-srd-modulo.c: Likewise.
      
      From-SVN: r268852
      25fd8e01
    • Richard Biener's avatar
      backport: re PR middle-end/86554 (Incorrect code generation with signed/unsigned comparison) · 95eddce8
      Richard Biener authored
      2019-02-13  Richard Biener  <rguenther@suse.de>
      
      	Backport from mainline
      	2019-01-08  Richard Biener  <rguenther@suse.de>
      
      	PR tree-optimization/86554
      	* tree-ssa-sccvn.c (visit_nary_op): When value-numbering to
      	expressions with different overflow behavior make sure there's an
      	available expression on the path.
      
      	* gcc.dg/torture/pr86554-1.c: New testcase.
      	* gcc.dg/torture/pr86554-2.c: Likewise.
      
      From-SVN: r268846
      95eddce8
    • Martin Liska's avatar
      Bump LTO_minor_version on GCC-8 branch (PR lto/89260). · 624dae6a
      Martin Liska authored
      2019-02-13  Martin Liska  <mliska@suse.cz>
      
      	PR lto/89260
      	* lto-streamer.h (LTO_minor_version): Bump version due
      	to r268698.
      
      From-SVN: r268840
      624dae6a