-frename-registers GCC 8 regression
HTML result view exported from: https://openbenchmarking.org/result/1707307-RI-CORTEXA5313.
cortex-a53-rename-registersProcessorMotherboardMemoryDiskGraphicsOSKernelCompilerFile-SystemScreen Resolution-fno-rename-registers-frename-registersUnknown @ 1.54GHz (4 Cores)Amlogic2048MB16GB NCard + 32GB 00000OSDUbuntu 16.043.14.79-vegas95 (aarch64)GCC 8.0.0 20170730 + Clang 3.8.0-2ubuntu4 + LLVM 3.8.0ext41280x1440OpenBenchmarking.orgCompiler Details- --build=aarch64-linux-gnu --build=aarch64-linux-gnu --build=aarch64-linux-gnu --disable-bootstrap --disable-bootstrap --disable-bootstrap --disable-browser-plugin --disable-browser-plugin --disable-browser-plugin --disable-libquadmath --disable-libquadmath --disable-libquadmath --disable-werror --disable-werror --disable-werror --enable-checking=release --enable-checking=release --enable-checking=release --enable-clocale=gnu --enable-clocale=gnu --enable-clocale=gnu --enable-gnu-unique-object --enable-gnu-unique-object --enable-gnu-unique-object --enable-languages=c,c++,fortran --enable-languages=c,c++,fortran,lto --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes --enable-libstdcxx-time=yes --enable-libstdcxx-time=yes --enable-multiarch --enable-multiarch --enable-multiarch --enable-nls --enable-nls --enable-nls --enable-plugin --enable-plugin --enable-plugin --enable-shared --enable-shared --enable-shared --enable-threads=posix --enable-threads=posix --enable-threads=posix --host=aarch64-linux-gnu --host=aarch64-linux-gnu --host=aarch64-linux-gnu --no-create --no-create --no-recursion --no-recursion --target=aarch64-linux-gnu --target=aarch64-linux-gnu --target=aarch64-linux-gnu --with-arch-directory=aarch64 --with-arch-directory=aarch64 --with-arch-directory=aarch64 --with-default-libstdcxx-abi=new --with-default-libstdcxx-abi=new --with-default-libstdcxx-abi=new -fipa-pta -fipa-pta -fipa-pta -fipa-pta -fomit-frame-pointer -fomit-frame-pointer -fomit-frame-pointer -fomit-frame-pointer -march=armv8-a+crc' -march=armv8-a+crc' -march=armv8-a+crc' -march=armv8-a+crc' -mtune=cortex-a57 -mtune=cortex-a57 -mtune=cortex-a57 -mtune=cortex-a57 Processor Details- Scaling Governor: meson_cpufreq performance
cortex-a53-rename-registersc-ray: Total TimeDifferenceStandard ErrorStandard Deviation-fno-rename-registers-frename-registers145.411.09x1.341.60%159.091.00x0.090.10%OpenBenchmarking.org
OpenBenchmarking.orgSeconds, Fewer Is BetterC-Ray 1.1Total Time-fno-rename-registers-frename-registers4080120160200SE +/- 1.34, N = 3SE +/- 0.09, N = 3145.41159.09-frename-registers1. (CC) gcc options: -lm -lpthread -O3 -Ofast -mcpu=cortex-a53 -fomit-frame-pointer -fipa-pta -march=armv8-a+crc -ftree-vectorize
Phoronix Test Suite v10.8.4