7079329: Adjust allocation prefetching for T4
Summary: on T4 2 BIS instructions should be issued to prefetch 64 bytes
Reviewed-by: iveresov, phh, twisti
os_family = linux
arch = sparc
arch_model = sparc
os_arch = linux_sparc
os_arch_model = linux_sparc
lib_arch = sparc
compiler = gcc
sysdefs = -DLINUX -D_GNU_SOURCE -DSPARC