_mm_mfence
Classification
SSE_ALL, General Support, CPUID Test: SSE2
Header File
emmintrin.h
Instruction
MFENCE
Synopsis
 _mm_mfence(void);
Description
Perform a serializing operation on all load-from-memory and store-to-memory instructions that were issued prior to this instruction. Guarantees that every memory access that precedes, in program order, the memory fence instruction is globally visible before any memory instruction which follows the fence in program order.