33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
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#if defined(DETECT_FEATURES) && defined(__INTEL_COMPILER)
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/*
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* Unlike GCC and CLANG, Intel Compiler exposes all supported intrinsics,
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* whether or not the build options for those features are specified.
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* Therefore, we must test #definitions of CPU features when option native/host
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* is enabled via `--cpu-baseline` or through env vr `CFLAGS` otherwise
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* the test will be broken and leads to enable all possible features.
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*/
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#if !defined(__SSE4_2__) && !defined(__POPCNT__)
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#error "HOST/ARCH doesn't support POPCNT"
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#endif
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#endif
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#ifdef _MSC_VER
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#include <nmmintrin.h>
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#else
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#include <popcntintrin.h>
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#endif
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int main(int argc, char **argv)
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{
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// To make sure popcnt instructions are generated
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// and been tested against the assembler
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unsigned long long a = *((unsigned long long*)argv[argc-1]);
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unsigned int b = *((unsigned int*)argv[argc-2]);
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#if defined(_M_X64) || defined(__x86_64__)
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a = _mm_popcnt_u64(a);
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#endif
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b = _mm_popcnt_u32(b);
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return (int)a + b;
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}
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