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#include <math.h> #if __FMA__ double fma(double x, double y, double z) { __asm__ ("vfmadd132sd %1, %2, %0" : "+x" (x) : "x" (y), "x" (z)); return x; } #elif __FMA4__ double fma(double x, double y, double z) { __asm__ ("vfmaddsd %3, %2, %1, %0" : "=x" (x) : "x" (x), "x" (y), "x" (z)); return x; } #else #include "../fma.c" #endif