$ i++ -march="MAX 10" calibration_hls.c
In file included from calibration_hls.c:12:
In file included from ./calibration_hls.h:17:
In file included from /soft/quartus_prime-17.1.0/hls/include/HLS/ac_int.h:99:
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/iostream:38:
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/ostream:37:
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/ios:41:
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/bits/ios_base.h:38:
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/ext/atomicity.h:48:45: error: use of undeclared identifier '__ATOMIC_ACQ_REL'
  { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
                                            ^
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/ext/atomicity.h:52:38: error: use of undeclared identifier '__ATOMIC_ACQ_REL'
  { __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
                                     ^
In file included from calibration_hls.c:12:
In file included from ./calibration_hls.h:17:
In file included from /soft/quartus_prime-17.1.0/hls/include/HLS/ac_int.h:108:
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/algorithm:61:
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/bits/stl_algo.h:59:
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/cstdlib:165:26: error: use of undeclared identifier '__builtin_labs'
  abs(long __i) { return __builtin_labs(__i); }
                         ^
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/cstdlib:173:31: error: use of undeclared identifier '__builtin_llabs'
  abs(long long __x) { return __builtin_llabs (__x); }
                              ^
4 errors generated.
HLS Testbench parse FAILED.