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from a8d0978 2016-09-26 Richard Biener rguenther@suse.de new 3c77f69 Implement -Wimplicit-fallthrough. new b821847 PR libstdc++/77717 * testsuite/21_strings/basic_string_view [...]

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Summary of changes: gcc/ChangeLog | 56 +++ gcc/Makefile.in | 5 + gcc/builtins.c | 5 +- gcc/c-family/ChangeLog | 8 + gcc/c-family/c-common.c | 42 ++ gcc/c-family/c-common.h | 1 + gcc/c/ChangeLog | 16 + gcc/c/c-decl.c | 2 +- gcc/c/c-parser.c | 97 +++- gcc/common.opt | 4 + gcc/config/rs6000/rs6000.c | 2 +- gcc/convert.c | 4 +- gcc/cp/ChangeLog | 30 ++ gcc/cp/constexpr.c | 2 + gcc/cp/constraint.cc | 3 +- gcc/cp/parser.c | 81 ++- gcc/cp/pt.c | 13 +- gcc/cp/semantics.c | 1 + gcc/cp/typeck.c | 4 +- gcc/doc/extend.texi | 62 ++- gcc/doc/invoke.texi | 91 +++- gcc/final.c | 2 + gcc/fortran/ChangeLog | 12 + gcc/fortran/arith.c | 2 +- gcc/fortran/frontend-passes.c | 3 +- gcc/fortran/parse.c | 2 +- gcc/fortran/primary.c | 1 + gcc/fortran/trans-array.c | 1 + gcc/fortran/trans-expr.c | 1 + gcc/fortran/trans-io.c | 1 + gcc/genattrtab.c | 2 + gcc/genpreds.c | 2 +- gcc/gimple-ssa-strength-reduction.c | 2 +- gcc/gimple.h | 10 + gcc/gimplify.c | 454 ++++++++++++++++- gcc/godump.c | 1 + gcc/internal-fn.c | 9 + gcc/internal-fn.def | 3 + gcc/langhooks.c | 9 + gcc/langhooks.h | 3 +- gcc/reload1.c | 1 + gcc/resource.c | 2 + gcc/system.h | 6 + gcc/testsuite/ChangeLog | 34 ++ .../c-c++-common/Wimplicit-fallthrough-1.c | 38 ++ .../c-c++-common/Wimplicit-fallthrough-10.c | 239 +++++++++ .../c-c++-common/Wimplicit-fallthrough-11.c | 23 + .../c-c++-common/Wimplicit-fallthrough-12.c | 26 + .../c-c++-common/Wimplicit-fallthrough-13.c | 63 +++ .../c-c++-common/Wimplicit-fallthrough-14.c | 162 ++++++ .../c-c++-common/Wimplicit-fallthrough-15.c | 31 ++ .../c-c++-common/Wimplicit-fallthrough-16.c | 32 ++ .../c-c++-common/Wimplicit-fallthrough-17.c | 29 ++ .../c-c++-common/Wimplicit-fallthrough-18.c | 42 ++ .../c-c++-common/Wimplicit-fallthrough-19.c | 85 ++++ .../c-c++-common/Wimplicit-fallthrough-2.c | 223 +++++++++ .../c-c++-common/Wimplicit-fallthrough-20.c | 41 ++ .../c-c++-common/Wimplicit-fallthrough-21.c | 25 + .../c-c++-common/Wimplicit-fallthrough-3.c | 543 +++++++++++++++++++++ .../c-c++-common/Wimplicit-fallthrough-4.c | 250 ++++++++++ .../c-c++-common/Wimplicit-fallthrough-5.c | 109 +++++ .../c-c++-common/Wimplicit-fallthrough-6.c | 305 ++++++++++++ .../c-c++-common/Wimplicit-fallthrough-7.c | 124 +++++ .../c-c++-common/Wimplicit-fallthrough-8.c | 101 ++++ .../c-c++-common/Wimplicit-fallthrough-9.c | 26 + gcc/testsuite/c-c++-common/attr-fallthrough-1.c | 57 +++ gcc/testsuite/c-c++-common/attr-fallthrough-2.c | 54 ++ gcc/testsuite/g++.dg/cpp0x/fallthrough1.C | 57 +++ gcc/testsuite/g++.dg/cpp0x/fallthrough2.C | 21 + gcc/testsuite/g++.dg/cpp1z/fallthrough1.C | 20 + gcc/testsuite/g++.dg/warn/Wunused-label-1.C | 2 +- gcc/testsuite/gcc.dg/Wimplicit-fallthrough-1.c | 22 + .../obj-c++.dg/Wimplicit-fallthrough-1.mm | 38 ++ gcc/testsuite/objc.dg/Wimplicit-fallthrough-1.m | 38 ++ gcc/tree-core.h | 3 + gcc/tree-ssa-loop-ivopts.c | 2 +- gcc/tree.h | 5 + gcc/varasm.c | 2 +- libcpp/ChangeLog | 10 + libcpp/include/cpplib.h | 4 +- libcpp/lex.c | 100 +++- libstdc++-v3/ChangeLog | 11 + libstdc++-v3/libsupc++/hash_bytes.cc | 2 + .../basic_string_view/operations/compare/char/1.cc | 4 +- 84 files changed, 4013 insertions(+), 48 deletions(-) create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-1.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-10.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-11.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-12.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-13.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-14.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-15.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-16.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-17.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-18.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-19.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-2.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-20.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-21.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-3.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-4.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-5.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-6.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-7.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-8.c create mode 100644 gcc/testsuite/c-c++-common/Wimplicit-fallthrough-9.c create mode 100644 gcc/testsuite/c-c++-common/attr-fallthrough-1.c create mode 100644 gcc/testsuite/c-c++-common/attr-fallthrough-2.c create mode 100644 gcc/testsuite/g++.dg/cpp0x/fallthrough1.C create mode 100644 gcc/testsuite/g++.dg/cpp0x/fallthrough2.C create mode 100644 gcc/testsuite/g++.dg/cpp1z/fallthrough1.C create mode 100644 gcc/testsuite/gcc.dg/Wimplicit-fallthrough-1.c create mode 100644 gcc/testsuite/obj-c++.dg/Wimplicit-fallthrough-1.mm create mode 100644 gcc/testsuite/objc.dg/Wimplicit-fallthrough-1.m