-msse4.1 causes "SSE4.2 instruction set not enabled"

[Jeffrey Walton <noloader@xxxxxxxxx>]

Hi Everyone,

I'm working on fully patched Solaris 11.3 that uses GCC 4.8.2 compiler.

$ cat test.cxx
#if defined(__SSE4_1__)
# include <emmintrin.h>
# include <nmmintrin.h>
#endif

int main(int argc, char* argv[])
{
    int x = _mm_extract_epi32(_mm_set_epi32(01,1,2,3), 0);
    return 0;
}

$ g++ -msse4.1 -m64 test.cxx -c
In file included from test.cxx:3:0:
/usr/gcc/4.8/lib/gcc/i386-pc-solaris2.11/4.8.2/include/nmmintrin.h:31:3:
error: #error "SSE4.2 instruction set not enabled"
 # error "SSE4.2 instruction set not enabled"
   ^
test.cxx: In function 'int main(int, char**)':
test.cxx:8:57: error: '_mm_extract_epi32' was not declared in this scope
     int x = _mm_extract_epi32(_mm_set_epi32(01,1,2,3), 0);
                                                         ^

According to Intel, they are SSE4.1 instructions.
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_extract

Any ideas how this can be worked around without adding additional arch
options? We don't want to add the arch option because it could result
in a SIGILL if GCC selects instructions from the SSE4.2 ISA.

Jeff