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from 6cca7e50ab9 Allow libcalls for complex memcpy when optimizing for size. new e344d69728d Various small C++ changes. new 8a8c87f2bc3 Use vec instead of raw array for built-in candidates. new b21df192478 Fix conversions for built-in operator overloading candidates. new fff9b0f386c Implement C++20 operator<=>.
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Summary of changes: gcc/ChangeLog | 5 + gcc/c-family/c-cppbuiltin.c | 1 + gcc/cp/ChangeLog | 86 +++ gcc/cp/call.c | 558 +++++++++++----- gcc/cp/class.c | 49 ++ gcc/cp/constexpr.c | 13 +- gcc/cp/cp-gimplify.c | 15 + gcc/cp/cp-objcp-common.c | 1 + gcc/cp/cp-tree.def | 1 + gcc/cp/cp-tree.h | 41 +- gcc/cp/decl.c | 8 + gcc/cp/decl2.c | 16 +- gcc/cp/error.c | 1 + gcc/cp/method.c | 735 ++++++++++++++++++++- gcc/cp/name-lookup.c | 16 +- gcc/cp/name-lookup.h | 3 +- gcc/cp/operators.def | 4 + gcc/cp/parser.c | 12 +- gcc/cp/pt.c | 15 +- gcc/cp/rtti.c | 2 +- gcc/cp/tree.c | 3 + gcc/cp/typeck.c | 71 +- gcc/cp/typeck2.c | 3 +- gcc/expmed.c | 2 + gcc/testsuite/c-c++-common/cpp/spaceship-1.c | 6 + gcc/testsuite/g++.dg/cpp/spaceship-1.C | 8 + gcc/testsuite/g++.dg/cpp2a/spaceship-constexpr1.C | 15 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq1.C | 17 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq1a.C | 24 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq2.C | 12 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq3.C | 16 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq4.C | 8 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq5.C | 10 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq6.C | 10 + gcc/testsuite/g++.dg/cpp2a/spaceship-eq7.C | 10 + gcc/testsuite/g++.dg/cpp2a/spaceship-err1.C | 5 + gcc/testsuite/g++.dg/cpp2a/spaceship-err2.C | 7 + gcc/testsuite/g++.dg/cpp2a/spaceship-rewrite1.C | 15 + gcc/testsuite/g++.dg/cpp2a/spaceship-scalar1.C | 93 +++ gcc/testsuite/g++.dg/cpp2a/spaceship-scalar1a.C | 41 ++ gcc/testsuite/g++.dg/cpp2a/spaceship-scalar2.C | 11 + gcc/testsuite/g++.dg/cpp2a/spaceship-scalar3.C | 21 + gcc/testsuite/g++.dg/cpp2a/spaceship-sfinae1.C | 7 + gcc/testsuite/g++.dg/cpp2a/spaceship-synth1.C | 43 ++ gcc/testsuite/g++.dg/cpp2a/spaceship-synth1a.C | 113 ++++ gcc/testsuite/g++.dg/cpp2a/spaceship-synth2.C | 43 ++ gcc/testsuite/g++.dg/cpp2a/spaceship-synth3.C | 48 ++ gcc/testsuite/g++.dg/cpp2a/spaceship-synth3a.C | 54 ++ gcc/testsuite/g++.dg/cpp2a/spaceship-weak1.C | 15 + gcc/testsuite/g++.dg/lookup/pr21802.C | 5 +- gcc/testsuite/g++.old-deja/g++.robertl/eb22.C | 7 +- libcpp/ChangeLog | 5 + libcpp/include/cpplib.h | 1 + libcpp/lex.c | 9 +- libstdc++-v3/ChangeLog | 5 + libstdc++-v3/include/Makefile.am | 5 +- libstdc++-v3/include/std/functional | 1 + libstdc++-v3/include/std/version | 3 + libstdc++-v3/libsupc++/Makefile.am | 2 +- libstdc++-v3/libsupc++/compare | 644 ++++++++++++++++++ .../std/concepts/concepts.object/regular.cc | 2 +- 61 files changed, 2789 insertions(+), 213 deletions(-) create mode 100644 gcc/testsuite/c-c++-common/cpp/spaceship-1.c create mode 100644 gcc/testsuite/g++.dg/cpp/spaceship-1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-constexpr1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq1a.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq2.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq3.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq4.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq5.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq6.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-eq7.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-err1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-err2.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-rewrite1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-scalar1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-scalar1a.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-scalar2.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-scalar3.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-sfinae1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-synth1.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-synth1a.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-synth2.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-synth3.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-synth3a.C create mode 100644 gcc/testsuite/g++.dg/cpp2a/spaceship-weak1.C create mode 100644 libstdc++-v3/libsupc++/compare