47749c43ac
The recent float128 ISA3.1 support (r12-1340) has some typos,
it makes the libgcc build fail if it's with one binutils
(assembler) which doesn't support Power10 insns. The error
looks like:
Error: invalid switch -mpower10
Error: unrecognized option -mpower10
... [...libgcc/shared-object.mk:14: float128-p10.o] Error 1
What this patch does are:
- fix test target typo libgcc_cv_powerpc_3_1_float128_hw
(written wrongly as libgcc_cv_powerpc_float128_hw, so it's
going to build ISA3.1 stuffs just when detecting ISA3.0).
- fix test used for libgcc_cv_powerpc_3_1_float128_hw check.
- fix test option used for libgcc_cv_powerpc_3_1_float128_hw
check.
- remove the ISA3.1 related contents from t-float128-hw.
- add new macro FLOAT128_HW_INSNS_ISA3_1 to differentiate
ISA3.1 content from ISA3.0 part in ifunc support.
Bootstrapped/regtested on:
- powerpc64le-linux-gnu P10
- powerpc64le-linux-gnu P9 (w/i and w/o p10 supported as)
- powerpc64-linux-gnu P8 (w/i and w/o p10 supported as)
libgcc/ChangeLog:
* configure: Regenerate.
* configure.ac (test for libgcc_cv_powerpc_3_1_float128_hw): Fix
typos among the name, CFLAGS and the test.
* config/rs6000/t-float128-hw (fp128_3_1_hw_funcs, fp128_3_1_hw_src,
fp128_3_1_hw_static_obj, fp128_3_1_hw_shared_obj, fp128_3_1_hw_obj):
Remove.
* config/rs6000/t-float128-p10-hw (FLOAT128_HW_INSNS): Append
macro FLOAT128_HW_INSNS_ISA3_1.
(FP128_3_1_CFLAGS_HW): Fix option typo.
* config/rs6000/float128-ifunc.c (SW_OR_HW_ISA3_1): Guard this with
FLOAT128_HW_INSNS_ISA3_1.
(__floattikf_resolve): Likewise.
(__floatuntikf_resolve): Likewise.
(__fixkfti_resolve): Likewise.
(__fixunskfti_resolve): Likewise.
(__floattikf): Likewise.
(__floatuntikf): Likewise.
(__fixkfti): Likewise.
(__fixunskfti): Likewise.
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
# Support for adding __float128 hardware support to the powerpc.
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# Tell the float128 functions that the ISA 3.0 hardware support can
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# be compiled it to be selected via IFUNC functions.
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FLOAT128_HW_INSNS = -DFLOAT128_HW_INSNS
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# New functions for hardware support
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fp128_hardfp_src = _mulkc3-hw.c _divkc3-hw.c
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fp128_hw_funcs = float128-hw _mulkc3-hw _divkc3-hw _powikf2-hw
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fp128_hw_src = $(srcdir)/config/rs6000/float128-hw.c _mulkc3-hw.c \
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_divkc3-hw.c _powikf2-hw.c
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fp128_hw_static_obj = $(addsuffix $(objext),$(fp128_hw_funcs))
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fp128_hw_shared_obj = $(addsuffix _s$(objext),$(fp128_hw_funcs))
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fp128_hw_obj = $(fp128_hw_static_obj) $(fp128_hw_shared_obj)
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fp128_ifunc_funcs = float128-ifunc
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fp128_ifunc_src = $(srcdir)/config/rs6000/float128-ifunc.c
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fp128_ifunc_static_obj = float128-ifunc$(objext)
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fp128_ifunc_shared_obj = float128-ifunc_s$(objext)
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fp128_ifunc_obj = $(fp128_ifunc_static_obj) $(fp128_ifunc_shared_obj)
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# Add _sw suffix to names to allow ifunc support.
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fp128_sed_hw = -hw
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# Build the hardware support functions with appropriate hardware support
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FP128_CFLAGS_HW = -Wno-type-limits -mvsx -mfloat128 \
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-mpower8-vector -mpower9-vector \
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-mfloat128-hardware -mno-gnu-attribute \
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-I$(srcdir)/soft-fp \
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-I$(srcdir)/config/rs6000 \
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$(FLOAT128_HW_INSNS)
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$(fp128_hw_obj) : INTERNAL_CFLAGS += $(FP128_CFLAGS_HW)
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$(fp128_hw_obj) : $(srcdir)/config/rs6000/t-float128-hw
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$(fp128_ifunc_obj) : INTERNAL_CFLAGS += $(FP128_CFLAGS_SW)
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$(fp128_ifunc_obj) : $(srcdir)/config/rs6000/t-float128-hw
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_mulkc3-hw.c: $(srcdir)/config/rs6000/_mulkc3.c
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(echo "#define __mulkc3 __mulkc3_hw"; \
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cat $(srcdir)/config/rs6000/_mulkc3.c) > _mulkc3-hw.c
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_divkc3-hw.c: $(srcdir)/config/rs6000/_divkc3.c
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(echo "#define __divkc3 __divkc3_hw"; \
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cat $(srcdir)/config/rs6000/_divkc3.c) > _divkc3-hw.c
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_powikf2-hw.c: $(srcdir)/config/rs6000/_powikf2.c
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(echo "#define __powikf2 __powikf2_hw"; \
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cat $(srcdir)/config/rs6000/_powikf2.c) > _powikf2-hw.c
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