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IBM Z: Improve FPRX2 <-> TF conversions

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gcc/ChangeLog:

	* config/s390/vector.md (*fprx2_to_tf): Rename to fprx2_to_tf,
	add memory alternative.
	(tf_to_fprx2): New pattern.
This commit is contained in:
Ilya Leoshkevich 2021-02-17 16:15:42 +01:00
parent 50352c6cd2
commit a974b8a592
1 changed files with 31 additions and 5 deletions
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36
gcc/config/s390/vector.md
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@ -616,12 +616,23 @@
vlvgp\t%v0,%1,%N1"
[(set_attr "op_type" "VRR,VRX,VRX,VRI,VRR")])
(define_insn "*fprx2_to_tf"
[(set (match_operand:TF 0 "nonimmediate_operand" "=v")
(subreg:TF (match_operand:FPRX2 1 "general_operand" "f") 0))]
(define_insn_and_split "fprx2_to_tf"
[(set (match_operand:TF 0 "nonimmediate_operand" "=v,AR")
(subreg:TF (match_operand:FPRX2 1 "general_operand" "f,f") 0))]
"TARGET_VXE"
"vmrhg\t%v0,%1,%N1"
[(set_attr "op_type" "VRR")])
"@
vmrhg\t%v0,%1,%N1
#"
"!(MEM_P (operands[0]) && MEM_VOLATILE_P (operands[0]))"
[(set (match_dup 2) (match_dup 3))
(set (match_dup 4) (match_dup 5))]
{
operands[2] = simplify_gen_subreg (DFmode, operands[0], TFmode, 0);
operands[3] = simplify_gen_subreg (DFmode, operands[1], FPRX2mode, 0);
operands[4] = simplify_gen_subreg (DFmode, operands[0], TFmode, 8);
operands[5] = simplify_gen_subreg (DFmode, operands[1], FPRX2mode, 8);
}
[(set_attr "op_type" "VRR,*")])
(define_insn "*vec_ti_to_v1ti"
[(set (match_operand:V1TI 0 "nonimmediate_operand" "=v,v,R, v, v,v")
@ -753,6 +764,21 @@
"vpdi\t%V0,%v1,%V0,5"
[(set_attr "op_type" "VRR")])
(define_insn_and_split "tf_to_fprx2"
[(set (match_operand:FPRX2 0 "nonimmediate_operand" "=f,f")
(subreg:FPRX2 (match_operand:TF 1 "general_operand" "v,AR") 0))]
"TARGET_VXE"
"#"
"!(MEM_P (operands[1]) && MEM_VOLATILE_P (operands[1]))"
[(set (match_dup 2) (match_dup 3))
(set (match_dup 4) (match_dup 5))]
{
operands[2] = simplify_gen_subreg (DFmode, operands[0], FPRX2mode, 0);
operands[3] = simplify_gen_subreg (DFmode, operands[1], TFmode, 0);
operands[4] = simplify_gen_subreg (DFmode, operands[0], FPRX2mode, 8);
operands[5] = simplify_gen_subreg (DFmode, operands[1], TFmode, 8);
})
; vec_perm_const for V2DI using vpdi?
;;