Symbol: SETFLOAT64
regress/lib/libc/ieeefp/testfloat/testCases.c
1178
#define SETFLOAT64( z, zHigh, zLow ) z = ( ( (float64) zHigh )<<32 ) | zLow
regress/lib/libc/ieeefp/testfloat/testCases.c
1180
#define SETFLOAT64( z, zHigh, zLow ) z.low = zLow; z.high = zHigh