+2014-02-18 Michael Meissner <meissner@linux.vnet.ibm.com>
+
+ PR target/60203
+ * config/rs6000/rs6000.md (mov<mode>_64bit, TF/TDmode moves):
+ Split 64-bit moves into 2 patterns. Do not allow the use of
+ direct move for TDmode in little endian, since the decimal value
+ has little endian bytes within a word, but the 64-bit pieces are
+ ordered in a big endian fashion, and normal subreg's of TDmode are
+ not allowed.
+ (mov<mode>_64bit_dm): Likewise.
+ (movtd_64bit_nodm): Likewise.
+
2014-02-18 Eric Botcazou <ebotcazou@adacore.com>
PR tree-optimization/60174
;; It's important to list Y->r and r->Y before r->r because otherwise
;; reload, given m->r, will try to pick r->r and reload it, which
;; doesn't make progress.
-(define_insn_and_split "*mov<mode>_64bit"
+
+;; We can't split little endian direct moves of TDmode, because the words are
+;; not swapped like they are for TImode or TFmode. Subregs therefore are
+;; problematical. Don't allow direct move for this case.
+
+(define_insn_and_split "*mov<mode>_64bit_dm"
[(set (match_operand:FMOVE128 0 "nonimmediate_operand" "=m,d,d,Y,r,r,r,wm")
(match_operand:FMOVE128 1 "input_operand" "d,m,d,r,YGHF,r,wm,r"))]
"TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_POWERPC64
+ && (<MODE>mode != TDmode || WORDS_BIG_ENDIAN)
&& (gpc_reg_operand (operands[0], <MODE>mode)
|| gpc_reg_operand (operands[1], <MODE>mode))"
"#"
{ rs6000_split_multireg_move (operands[0], operands[1]); DONE; }
[(set_attr "length" "8,8,8,12,12,8,8,8")])
+(define_insn_and_split "*movtd_64bit_nodm"
+ [(set (match_operand:TD 0 "nonimmediate_operand" "=m,d,d,Y,r,r")
+ (match_operand:TD 1 "input_operand" "d,m,d,r,YGHF,r"))]
+ "TARGET_HARD_FLOAT && TARGET_FPRS && TARGET_POWERPC64 && !WORDS_BIG_ENDIAN
+ && (gpc_reg_operand (operands[0], TDmode)
+ || gpc_reg_operand (operands[1], TDmode))"
+ "#"
+ "&& reload_completed"
+ [(pc)]
+{ rs6000_split_multireg_move (operands[0], operands[1]); DONE; }
+ [(set_attr "length" "8,8,8,12,12,8")])
+
(define_insn_and_split "*mov<mode>_32bit"
[(set (match_operand:FMOVE128 0 "nonimmediate_operand" "=m,d,d,Y,r,r")
(match_operand:FMOVE128 1 "input_operand" "d,m,d,r,YGHF,r"))]