ifeq ($(CORE), Z13)
CCOMMON_OPT += -march=z13 -mzvector
FCOMMON_OPT += -march=z13 -mzvector
endif

ifeq ($(CORE), Z14)
CCOMMON_OPT += -march=z14 -mzvector -O3
FCOMMON_OPT += -march=z14 -mzvector
endif

# Enable floating-point expression contraction for clang, since it is the
# default for gcc
ifeq ($(C_COMPILER), CLANG)
CCOMMON_OPT += -ffp-contract=on
endif