On Sun, Nov 08, 2015 at 07:44:52PM -0500, Michael Meissner wrote: > +/* Split a conversion from __float128 to an integer type into separate insns. > + OPERANDS points to the destination, source, and V2DI temporary > + register. CODE is either FIX or UNSIGNED_FIX. */
dot space space > +;; ISA 2.08 IEEE 128-bit floating point support. 3.0 > +(define_code_attr fix_fixuns [(fix "fix") (unsigned_fix "fixuns")]) > +(define_code_attr float_floatuns [(float "float") (unsigned_float > "floatuns")]) You could instead do an "uns" attribute so you would write fix<uns> etc. > +;; 0 says do sign-extension, 1 says zero-extension > +(define_insn "*ieee128_mtvsrw" > + [(set (match_operand:V2DI 0 "altivec_register_operand" "=v,v,v,v") > + (unspec:V2DI [(match_operand:SI 1 "nonimmediate_operand" "r,Z,r,Z") > + (match_operand:SI 2 "const_0_to_1_operand" "O,O,n,n")] > + UNSPEC_IEEE128_MOVE))] > + "TARGET_FLOAT128_HW" > + "@ > + mtvsrwa %x0,%1 > + lxsiwax %x0,%y1 > + mtvsrwz %x0,%1 > + lxsiwzx %x0,%y1" > + [(set_attr "type" "mffgpr,fpload,mffgpr,fpload")]) Tricky, is there no cleaner way to do this? Segher
