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Based on GCC docs[1], we use the '-mpower8-vector' flag at config-time to detect the toolchain support to the bcdsub instruction. LLVM/Clang supports this flag since version 3.6[2], but the instruction and related builtins were only added in LLVM 14[3]. In the absence of other means to detect this support at config-time, we resort to __has_builtin to identify the presence of __builtin_bcdsub at compile-time. If the builtin is not available, the instruction is emitted with a ".long". [1] https://gcc.gnu.org/onlinedocs/gcc-8.3.0/gcc/PowerPC-AltiVec_002fVSX-Built-in-Functions.html [2]59eb767e11[3]c933c2eb33Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20220304165417.1981159-5-matheus.ferst@eldorado.org.br> Signed-off-by: Cédric Le Goater <clg@kaod.org>
This directory contains various interesting guest programs for regression testing. Tests are either multi-arch, meaning they can be built for all guest architectures that support linux-user executable, or they are architecture specific. CRIS ==== The testsuite for CRIS is in tests/tcg/cris. You can run it with "make test-cris".