// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Lowering arithmetic
(Add(Ptr|64|32|16|8) ...) => (ADD ...)
(Add(64|32)F ...) => (FADD(D|S) ...)

(Sub(Ptr|64|32|16|8) ...) => (SUB ...)
(Sub(64|32)F ...) => (FSUB(D|S) ...)

(Mul64 ...) => (MUL  ...)
(Mul64uhilo ...) => (LoweredMuluhilo ...)
(Mul64uover ...) => (LoweredMuluover ...)

	FMOVD	F0, 4096(R1)           // ed0010000167
	FMOVS	F13, 4095(R2)(R3)      // 70d32fff
	FMOVS	F13, 4096(R2)(R3)      // edd320000166

	FADDS	F0, F15                // b30a00f0
	FADD	F1, F14                // b31a00e1
	FSUBS	F2, F13                // b30b00d2
	FSUB	F3, F12                // b31b00c3
	FMULS	F4, F11                // b31700b4
	FMUL	F5, F10                // b31c00a5

	}
	return ""
}

func argBytes(inst *Inst, arg Arg) int {
	if isMem(arg) {
		return inst.MemBytes
	}
	return regBytes(arg)
}

func isFloat(op Op) bool {
	switch op {
	case FADD, FCOM, FCOMP, FDIV, FDIVR, FIADD, FICOM, FICOMP, FIDIV, FIDIVR, FILD, FIMUL, FIST, FISTP, FISTTP, FISUB, FISUBR, FLD, FMUL, FST, FSTP, FSUB, FSUBR:
		return true
	}
	return false
}

func isFloatInt(op Op) bool {

		{name: "ADDCCconst", argLength: 1, reg: gp11cxer, asm: "ADDCCC", aux: "Int64", typ: "(Int,Flags)"}, // arg0 + auxInt sets CC, clobbers XER
		{name: "FADD", argLength: 2, reg: fp21, asm: "FADD", commutative: true},                            // arg0+arg1
		{name: "FADDS", argLength: 2, reg: fp21, asm: "FADDS", commutative: true},                          // arg0+arg1