Hi Bill,
> 2014-02-20 Bill Schmidt <wschm...@linux.vnet.ibm.com>
>
> * config/rs6000/altivec.md (altivec_lvxl): Rename as
> *altivec_lvxl_<mode>_internal and use VM2 iterator instead of
> V4SI.
> (altivec_lvxl_<mode>): New define_expand incorporating
> -maltivec=be semantics where needed.
I just noticed that this:
> -(define_insn "altivec_lvxl"
> +(define_expand "altivec_lvxl_<mode>"
> [(parallel
> - [(set (match_operand:V4SI 0 "register_operand" "=v")
> - (match_operand:V4SI 1 "memory_operand" "Z"))
> + [(set (match_operand:VM2 0 "register_operand" "=v")
> + (match_operand:VM2 1 "memory_operand" "Z"))
> (unspec [(const_int 0)] UNSPEC_SET_VSCR)])]
> "TARGET_ALTIVEC"
> - "lvxl %0,%y1"
> +{
> + if (!BYTES_BIG_ENDIAN && VECTOR_ELT_ORDER_BIG)
> + {
> + altivec_expand_lvx_be (operands[0], operands[1], <MODE>mode,
> UNSPEC_SET_VSCR);
> + DONE;
> + }
> +})
> +
> +(define_insn "*altivec_lvxl_<mode>_internal"
> + [(parallel
> + [(set (match_operand:VM2 0 "register_operand" "=v")
> + (match_operand:VM2 1 "memory_operand" "Z"))
> + (unspec [(const_int 0)] UNSPEC_SET_VSCR)])]
> + "TARGET_ALTIVEC"
> + "lvx %0,%y1"
> [(set_attr "type" "vecload")])
now causes vec_ldl to emit the lvx instead of the lvxl instruction.
I assume this was not actually intended?
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU/Linux compilers and toolchain
ulrich.weig...@de.ibm.com
