Clean up intrinsic Math.abs(float/double).
Clean up intrinsic Math.abs(float/double).

Don't load 0x7fffffff into register.

Change-Id: I0197f9f3ad33db1f6eb09a9b4113299c00f500e3

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst