a71c0334f7
2016-01-21 Michael Meissner <meissner@linux.vnet.ibm.com> Steven Munroe <munroesj@linux.vnet.ibm.com> Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com> * config/rs6000/float128-sed: New files to convert TF names to KF names for PowerPC IEEE 128-bit floating point support. * config/rs6000/float128-sed-hw: Likewise. * config/rs6000/float128-hw.c: New file for ISA 3.0 IEEE 128-bit floating point hardware support. * config/rs6000/float128-ifunc.c: New file to pick either IEEE 128-bit floating point software emulation or use ISA 3.0 hardware support if it is available. * config/rs6000/quad-float128.h: New file to support IEEE 128-bit floating point. * config/rs6000/extendkftf2-sw.c: New file, convert IEEE 128-bit floating point to IBM extended double. * config/rs6000/trunctfkf2-sw.c: New file, convert IBM extended double to IEEE 128-bit floating point. * config/rs6000/t-float128: New Makefile fragments to enable building __float128 emulation support. * config/rs6000/t-float128-hw: Likewise. * config/rs6000/sfp-exceptions.c: New file to provide exception support for IEEE 128-bit floating point. * config/rs6000/floattikf.c: New files for converting between IEEE 128-bit floating point and signed/unsigned 128-bit integers. * config/rs6000/fixunskfti.c: Likewise. * config/rs6000/fixkfti.c: Likewise. * config/rs6000/floatuntikf.c: Likewise. * config/rs6000/sfp-machine.h (_FP_W_TYPE_SIZE): Use 64-bit types when building on 64-bit systems, or when VSX is enabled. (_FP_W_TYPE): Likewise. (_FP_WS_TYPE): Likewise. (_FP_I_TYPE): Likewise. (TItype): Define on 64-bit systems. (UTItype): Likewise. (TI_BITS): Likewise. (_FP_MUL_MEAT_D): Add support for using 64-bit types. (_FP_MUL_MEAT_Q): Likewise. (_FP_DIV_MEAT_D): Likewise. (_FP_DIV_MEAT_Q): Likewise. (_FP_NANFRAC_D): Likewise. (_FP_NANFRAC_Q): Likewise. (ISA_BIT): Add exception support if we are being compiled on a machine with hardware floating point support to build the IEEE 128-bit emulation functions. (FP_EX_INVALID): Likewise. (FP_EX_OVERFLOW): Likewise. (FP_EX_UNDERFLOW): Likewise. (FP_EX_DIVZERO): Likewise. (FP_EX_INEXACT): Likewise. (FP_EX_ALL): Likewise. (__sfp_handle_exceptions): Likewise. (FP_HANDLE_EXCEPTIONS): Likewise. (FP_RND_NEAREST): Likewise. (FP_RND_ZERO): Likewise. (FP_RND_PINF): Likewise. (FP_RND_MINF): Likewise. (FP_RND_MASK): Likewise. (_FP_DECL_EX): Likewise. (FP_INIT_ROUNDMODE): Likewise. (FP_ROUNDMODE): Likewise. * libgcc/config.host (powerpc*-*-linux*): If compiler can compile VSX code, enable IEEE 128-bit floating point. If the compiler can compile IEEE 128-bit floating point code with ISA 3.0 IEEE 128-bit floating point hardware instructions and it supports declaring functions with the ifunc attribute, enable ifunc functions to switch between software and hardware support. * configure.ac (powerpc*-*-linux*): Likewise. * configure: Regenerate. Co-Authored-By: Steven Munroe <munroesj@linux.vnet.ibm.com> Co-Authored-By: Tulio Magno Quites Machado Filho <tulioqm@br.ibm.com> From-SVN: r232685
36 lines
1.3 KiB
Plaintext
36 lines
1.3 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_hw_funcs = float128-hw
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fp128_hw_src = $(srcdir)/config/rs6000/float128-hw.c
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fp128_hw_static_obj = float128-hw$(objext)
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fp128_hw_shared_obj = float128-hw_s$(objext)
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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) $(fp128_ifunc_shared_obj)
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# Add _sw suffix to names to allow ifunc support.
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fp128_sed_hw = -hw
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# Build the hardware support functions with appropriate hardware support
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FP128_CFLAGS_HW = -Wno-type-limits -mvsx -mfloat128 \
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-mpower8-vector -mpower9-vector \
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-mfloat128-hardware \
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-I$(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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