Bin.Cheng wrote: > do we have some compilation time benchmarks for GCC? I'm using the llvm test-suite to see compile time differences:
$ git clone http://llvm.org/git/test-suite.git /path/to/test-suite $ /path/to/test-suite/configure --without-llvmsrc --without-llvmobj --with-externals=/path/to/spec $ make -k TEST=simple TARGET_LLVMGCC=/path/to/gcc TARGET_CXX=/path/to/g++ TARGET_CC=/path/to/gcc TARGET_LLVMGXX=/path/to/g++ CC_UNDER_TEST_IS_GCC=1 TARGET_FLAGS= USE_REFERENCE_OUTPUT=1 CC_UNDER_TEST_TARGET_IS_AARCH64=1 OPTFLAGS="-O3" LLC_OPTFLAGS="-O3" ENABLE_OPTIMIZED=1 ARCH=AArch64 ENABLE_HASHED_PROGRAM_OUTPUT=1 DISABLE_JIT=1 report report.simple.csv $ head -1 report.simple.csv Program,CC,CC_Time,CC_Real_Time,Exec,Exec_Time,Exec_Real_Time $ awk -F, '{print $1, $3 }' < report.simple.csv Here is how to get benchmark code size: $ make -k TEST=codesize TARGET_LLVMGCC=/path/to/gcc TARGET_CXX=/path/to/g++ TARGET_CC=/path/to/gcc TARGET_LLVMGXX=/path/to/g++ TARGET_FLAGS= USE_REFERENCE_OUTPUT=1 CC_UNDER_TEST_TARGET_IS_AARCH64=1 CC_UNDER_TEST_IS_CLANG=1 OPTFLAGS="-O3" LLC_OPTFLAGS="-O3" ENABLE_OPTIMIZED=1 ARCH=AArch64 ENABLE_HASHED_PROGRAM_OUTPUT=1 DISABLE_JIT=1 2>/dev/null | grep ^size: > test.codesize.txt
