123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126 |
- # Support for adding __float128 to the powerpc.
- # The standard 128-bit floating point support functions are TFmode. Most
- # PowerPC targets use a long double format that has a pair of doubles to give
- # you more precision, but no extra expoenent range. This long double format is
- # mostly compatible with the format used by the IBM XL compilers. Some of the
- # names used by the IBM double-double format use TF in them, so we rename
- # all of the functions provided for the new IEEE 128-bit support.
- #
- # We use the TF functions in soft-fp for 128-bit floating point support, using
- # sed to transform the names in the files from TF names to KF names.
- # Emulator functions from the soft-fp directory
- fp128_softfp_funcs = addkf3 subkf3 mulkf3 divkf3 negkf2 \
- unordkf2 eqkf2 gekf2 lekf2 \
- extendsfkf2 extenddfkf2 trunckfsf2 trunckfdf2 \
- fixkfsi fixkfdi fixunskfsi fixunskfdi \
- floatsikf floatdikf floatunsikf floatundikf
- fp128_softfp_src = $(addsuffix -sw.c,$(fp128_softfp_funcs))
- fp128_softfp_static_obj = $(addsuffix -sw$(objext),$(fp128_softfp_funcs))
- fp128_softfp_shared_obj = $(addsuffix -sw_s$(objext),$(fp128_softfp_funcs))
- fp128_softfp_obj = $(fp128_softfp_static_obj) $(fp128_softfp_shared_obj)
- # Decimal <-> _Float128 conversions
- fp128_dec_funcs = _kf_to_sd _kf_to_dd _kf_to_td \
- _sd_to_kf _dd_to_kf _td_to_kf
- # Decimal <-> __ibm128 conversions
- ibm128_dec_funcs = _tf_to_sd _tf_to_dd _tf_to_td \
- _sd_to_tf _dd_to_tf _td_to_tf
- # New functions for software emulation
- fp128_ppc_funcs = floattikf-sw floatuntikf-sw \
- fixkfti-sw fixunskfti-sw \
- extendkftf2-sw trunctfkf2-sw \
- sfp-exceptions _mulkc3 _divkc3 _powikf2
- ifeq ($(decimal_float),yes)
- fp128_ppc_funcs += $(fp128_dec_funcs)
- endif
- fp128_ppc_src = $(addprefix $(srcdir)/config/rs6000/,$(addsuffix \
- .c,$(fp128_ppc_funcs)))
- fp128_ppc_static_obj = $(addsuffix $(objext),$(fp128_ppc_funcs))
- fp128_ppc_shared_obj = $(addsuffix _s$(objext),$(fp128_ppc_funcs))
- fp128_ppc_obj = $(fp128_ppc_static_obj) $(fp128_ppc_shared_obj)
- # All functions
- fp128_funcs = $(fp128_softfp_funcs) $(fp128_ppc_funcs) \
- $(fp128_hw_funcs) $(fp128_ifunc_funcs) \
- $(fp128_3_1_hw_funcs)
- fp128_src = $(fp128_softfp_src) $(fp128_ppc_src) \
- $(fp128_hw_src) $(fp128_ifunc_src) \
- $(fp128_3_1_hw_src)
- fp128_obj = $(fp128_softfp_obj) $(fp128_ppc_obj) \
- $(fp128_hw_obj) $(fp128_ifunc_obj) \
- $(fp128_3_1_hw_obj)
- fp128_sed = $(srcdir)/config/rs6000/float128-sed$(fp128_sed_hw)
- fp128_dep = $(fp128_sed) $(srcdir)/config/rs6000/t-float128
- fp128_includes = $(srcdir)/soft-fp/double.h \
- $(srcdir)/soft-fp/op-1.h \
- $(srcdir)/soft-fp/op-4.h \
- $(srcdir)/soft-fp/op-common.h \
- $(srcdir)/soft-fp/single.h \
- $(srcdir)/soft-fp/extended.h \
- $(srcdir)/soft-fp/op-2.h \
- $(srcdir)/soft-fp/op-8.h \
- $(srcdir)/soft-fp/quad.h \
- $(srcdir)/soft-fp/soft-fp.h
- # Build the emulator without ISA 3.0 hardware support.
- FP128_CFLAGS_SW = -Wno-type-limits -mvsx -mfloat128 \
- -mno-float128-hardware -mno-gnu-attribute \
- -I$(srcdir)/soft-fp \
- -I$(srcdir)/config/rs6000 \
- $(FLOAT128_HW_INSNS)
- $(fp128_softfp_obj) : INTERNAL_CFLAGS += $(FP128_CFLAGS_SW)
- $(fp128_ppc_obj) : INTERNAL_CFLAGS += $(FP128_CFLAGS_SW)
- $(fp128_obj) : $(fp128_includes)
- $(fp128_obj) : $(srcdir)/config/rs6000/quad-float128.h
- # Force the TF mode to/from decimal functions to be compiled with IBM long
- # double. Add building the KF mode to/from decimal conversions with explict
- # IEEE long double.
- fp128_dec_objs = $(addsuffix $(objext),$(fp128_dec_funcs)) \
- $(addsuffix _s$(objext),$(fp128_dec_funcs))
- ibm128_dec_objs = $(addsuffix $(objext),$(ibm128_dec_funcs)) \
- $(addsuffix _s$(objext),$(ibm128_dec_funcs))
- FP128_CFLAGS_DECIMAL = -mno-gnu-attribute -Wno-psabi -mabi=ieeelongdouble
- IBM128_CFLAGS_DECIMAL = -mno-gnu-attribute -Wno-psabi -mabi=ibmlongdouble
- $(fp128_dec_objs) : INTERNAL_CFLAGS += $(FP128_CFLAGS_DECIMAL)
- $(ibm128_dec_objs) : INTERNAL_CFLAGS += $(IBM128_CFLAGS_DECIMAL)
- $(fp128_softfp_src) : $(srcdir)/soft-fp/$(subst -sw,,$(subst kf,tf,$@)) $(fp128_dep)
- @src="$(srcdir)/soft-fp/$(subst -sw,,$(subst kf,tf,$@))"; \
- echo "Create $@"; \
- (echo "/* file created from $$src */"; \
- echo; \
- sed -f $(fp128_sed) < $$src) > $@
- .PHONY: test clean-float128
- test:
- @echo "fp128_src:"; \
- for x in $(fp128_src); do echo " $$x"; done; \
- echo; \
- echo "fp128_obj:"; \
- for x in $(fp128_obj); do echo " $$x"; done;
- clean-float128:
- -rm -f $(fp128_softfp_src) $(fp128_hardfp_src)
- @$(MULTICLEAN) multi-clean DO=clean-float128
- # For now, only put it in the static library
- # LIB2ADD += $(fp128_src)
- LIB2ADD_ST += $(fp128_src)
|