This patch fixes the prefixed and non-prefixed instruction sizes for the 128-bit types that aren't loaded into 128-bit vectors (TDmode, TFmode, IFmode, PTImode).
Along with the other patches, I have done bootstraps on a little endian power8 system, and there were no regressions in the test suite. Can I check this into the trunk? 2019-10-08 Michael Meissner <meiss...@linux.ibm.com> * config/rs6000/rs6000.md (mov<mode>_64bit_dm): Set prefixed and non-prefixed length. (movtd_64bit_nodm): Set prefixed and non-prefixed length. (mov<mode>_ppc64): Set prefixed and non-prefixed length. Index: gcc/config/rs6000/rs6000.md =================================================================== --- gcc/config/rs6000/rs6000.md (revision 276713) +++ gcc/config/rs6000/rs6000.md (working copy) @@ -7773,9 +7773,13 @@ (define_insn_and_split "*mov<mode>_64bit "#" "&& reload_completed" [(pc)] -{ rs6000_split_multireg_move (operands[0], operands[1]); DONE; } - [(set_attr "length" "8") - (set_attr "isa" "*,*,*,*,*,*,*,*,p8v,p8v")]) +{ + rs6000_split_multireg_move (operands[0], operands[1]); + DONE; +} + [(set_attr "isa" "*,*,*,*,*,*,*,*,p8v,p8v") + (set_attr "non_prefixed_length" "8") + (set_attr "prefixed_length" "20")]) (define_insn_and_split "*movtd_64bit_nodm" [(set (match_operand:TD 0 "nonimmediate_operand" "=m,d,d,Y,r,r") @@ -7786,8 +7790,12 @@ (define_insn_and_split "*movtd_64bit_nod "#" "&& reload_completed" [(pc)] -{ rs6000_split_multireg_move (operands[0], operands[1]); DONE; } - [(set_attr "length" "8,8,8,12,12,8")]) +{ + rs6000_split_multireg_move (operands[0], operands[1]); + DONE; +} + [(set_attr "non_prefixed_length" "8") + (set_attr "prefixed_length" "20")]) (define_insn_and_split "*mov<mode>_32bit" [(set (match_operand:FMOVE128_FPR 0 "nonimmediate_operand" "=m,d,d,d,Y,r,r") @@ -8984,7 +8992,8 @@ (define_insn "*mov<mode>_ppc64" return rs6000_output_move_128bit (operands); } [(set_attr "type" "store,store,load,load,*,*") - (set_attr "length" "8")]) + (set_attr "prefixed_length" "20") + (set_attr "non_prefixed_length" "8")]) (define_split [(set (match_operand:TI2 0 "int_reg_operand") -- Michael Meissner, IBM IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA email: meiss...@linux.ibm.com, phone: +1 (978) 899-4797