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Make up for the lack of intrinsic headers in Open Enclave #195

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merged 1 commit into from
May 21, 2020
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Make up for the lack of intrinsic headers in Open Enclave #195

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10 changes: 8 additions & 2 deletions src/aal/aal_x86_sgx.h
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,6 @@
#ifdef _MSC_VER
# include <immintrin.h>
# include <intrin.h>
#else
# include <emmintrin.h>
#endif

#if defined(__amd64__) || defined(__x86_64__) || defined(_M_X64) || \
Expand Down Expand Up @@ -34,15 +32,23 @@ namespace snmalloc
*/
static inline void pause()
{
#ifdef _MSC_VER
_mm_pause();
#else
asm volatile("pause");
#endif
}

/**
* Issue a prefetch hint at the specified address.
*/
static inline void prefetch(void* ptr)
{
#ifdef _MSC_VER
_mm_prefetch(reinterpret_cast<const char*>(ptr), _MM_HINT_T0);
#else
asm volatile("prefetcht0 %0" ::"m"(ptr));
#endif
}

/**
Expand Down