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from 16ec267063c c++: Excess precision for ? int : float or int == float [PR [...] new c2565a31c16 middle-end, c++, i386, libgcc: std::bfloat16_t and __bf16 a [...]

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Summary of changes: gcc/builtin-types.def | 4 + gcc/builtins.def | 1 + gcc/c-family/c-cppbuiltin.cc | 21 ++- gcc/c-family/c-lex.cc | 16 ++ gcc/c/c-typeck.cc | 3 + gcc/config/i386/i386-builtin-types.def | 2 +- gcc/config/i386/i386-builtins.cc | 17 +- gcc/config/i386/i386.cc | 63 +------ gcc/config/i386/i386.md | 81 +++++++++ gcc/cp/cp-tree.h | 2 + gcc/cp/typeck.cc | 8 +- gcc/expmed.cc | 2 +- gcc/expmed.h | 2 + gcc/expr.cc | 150 +++++++++++++++- gcc/fold-const-call.cc | 1 + .../g++.target/i386/bfloat_cpp_typecheck.C | 4 +- gcc/testsuite/gcc.dg/torture/bfloat16-basic.c | 11 ++ .../torture/bfloat16-builtin-issignaling-1.c | 21 +++ gcc/testsuite/gcc.dg/torture/bfloat16-builtin.c | 47 +++++ gcc/testsuite/gcc.dg/torture/bfloat16-complex.c | 61 +++++++ .../gcc.dg/torture/builtin-issignaling-1.c | 47 +++-- gcc/testsuite/gcc.dg/torture/floatn-basic.h | 18 +- .../i386/sse2-bfloat16-scalar-typecheck.c | 196 ++++++++++----------- .../gcc.target/i386/vect-bfloat16-typecheck_1.c | 100 +++++------ .../gcc.target/i386/vect-bfloat16-typecheck_2.c | 98 +++++------ gcc/testsuite/lib/target-supports.exp | 16 ++ gcc/tree-core.h | 3 + gcc/tree.cc | 26 ++- gcc/tree.h | 1 + libcpp/expr.cc | 23 ++- libcpp/include/cpplib.h | 1 + libgcc/config/i386/32/sfp-machine.h | 1 + libgcc/config/i386/64/sfp-machine.h | 1 + libgcc/config/i386/libgcc-glibc.ver | 10 ++ libgcc/config/i386/sfp-machine.h | 1 + libgcc/config/i386/t-softfp | 11 +- libgcc/soft-fp/brain.h | 172 ++++++++++++++++++ libgcc/soft-fp/{extendhfsf2.c => extendbfsf2.c} | 14 +- libgcc/soft-fp/{truncsfhf2.c => truncbfhf2.c} | 41 ++++- libgcc/soft-fp/{truncdfhf2.c => truncdfbf2.c} | 20 +-- libgcc/soft-fp/{fixunshfsi.c => trunchfbf2.c} | 25 ++- libgcc/soft-fp/{truncsfhf2.c => truncsfbf2.c} | 18 +- libgcc/soft-fp/{trunctfhf2.c => trunctfbf2.c} | 20 +-- libgcc/soft-fp/{truncxfhf2.c => truncxfbf2.c} | 20 +-- libiberty/cp-demangle.c | 14 +- libiberty/cp-demangle.h | 2 +- libiberty/testsuite/demangle-expected | 4 + 47 files changed, 1052 insertions(+), 368 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/torture/bfloat16-basic.c create mode 100644 gcc/testsuite/gcc.dg/torture/bfloat16-builtin-issignaling-1.c create mode 100644 gcc/testsuite/gcc.dg/torture/bfloat16-builtin.c create mode 100644 gcc/testsuite/gcc.dg/torture/bfloat16-complex.c create mode 100644 libgcc/soft-fp/brain.h copy libgcc/soft-fp/{extendhfsf2.c => extendbfsf2.c} (87%) copy libgcc/soft-fp/{truncsfhf2.c => truncbfhf2.c} (58%) copy libgcc/soft-fp/{truncdfhf2.c => truncdfbf2.c} (84%) copy libgcc/soft-fp/{fixunshfsi.c => trunchfbf2.c} (75%) copy libgcc/soft-fp/{truncsfhf2.c => truncsfbf2.c} (86%) copy libgcc/soft-fp/{trunctfhf2.c => trunctfbf2.c} (84%) copy libgcc/soft-fp/{truncxfhf2.c => truncxfbf2.c} (84%)