Rémy Oudompheng <******@****.***> 1349644921 +0200

		// negative int is divided by -1.
		var j *obj.Prog
		if v.Op == ssa.Op386DIVL || v.Op == ssa.Op386DIVW ||
			v.Op == ssa.Op386MODL || v.Op == ssa.Op386MODW {

			if ssa.DivisionNeedsFixUp(v) {
				var c *obj.Prog
				switch v.Op {
				case ssa.Op386DIVL, ssa.Op386MODL:
					c = s.Prog(x86.ACMPL)
					j = s.Prog(x86.AJEQ)

				case ssa.Op386DIVW, ssa.Op386MODW:
					c = s.Prog(x86.ACMPW)
					j = s.Prog(x86.AJEQ)
				}

		p.To.Type = obj.TYPE_CONST
		p.To.Offset = -1

		pbahead := s.Prog(ppc64.ABEQ)
		pbahead.To.Type = obj.TYPE_BRANCH

		p = s.Prog(v.Op.Asm())
		p.From.Type = obj.TYPE_REG
		p.From.Reg = r1
		p.Reg = r0
		p.To.Type = obj.TYPE_REG
		p.To.Reg = r

		pbover := s.Prog(obj.AJMP)
		pbover.To.Type = obj.TYPE_BRANCH

		p = s.Prog(ppc64.ANEG)
		p.To.Type = obj.TYPE_REG
		p.To.Reg = r

	"float64",
}

func main() {
	var prog bytes.Buffer
	fmt.Fprintf(&prog, "package main\n\n")
	fmt.Fprintf(&prog, "import ( \"fmt\"; \"math\" )\n")
	for _, t1 := range types {
		for _, t2 := range types {
			fmt.Fprintf(&prog, "func %[1]s_to_%[2]s(x %[1]s) %[2]s { return %[2]s(x) }\n", t1, t2)
		}
	}

	var outputs []string
	var exprs []string

	fmt.Fprintf(&prog, "var (\n")
	for _, t1 := range types {

				prog.Reg = p.getRegister(prog, op, &a[2])
				prog.To = a[3]
				break
			}
			if arch.IsARMMULA(op) {
				// All must be registers.
				p.getRegister(prog, op, &a[0])
				r1 := p.getRegister(prog, op, &a[1])
				r2 := p.getRegister(prog, op, &a[2])
				p.getRegister(prog, op, &a[3])
				prog.From = a[0]
				prog.To = a[3]
				prog.To.Type = obj.TYPE_REGREG2
				prog.To.Offset = int64(r2)
				prog.Reg = r1
				break

			s.Prog(wasm.AIf)
			s.Br(obj.AJMP, b.Succs[0].Block())
			s.Prog(wasm.AEnd)
			s.Br(obj.AJMP, b.Succs[1].Block())
		}

	case ssa.BlockRet:
		s.Prog(obj.ARET)

	case ssa.BlockExit, ssa.BlockRetJmp:

	case ssa.BlockDefer:
		p := s.Prog(wasm.AGet)
		p.From = obj.Addr{Type: obj.TYPE_REG, Reg: wasm.REG_RET0}
		s.Prog(wasm.AI64Eqz)
		s.Prog(wasm.AI32Eqz)
		s.Prog(wasm.AIf)

		// CPU faults upon signed overflow, which occurs when most
		// negative int is divided by -1.
		var j *obj.Prog
		if v.Op == ssa.OpS390XDIVD || v.Op == ssa.OpS390XDIVW ||
			v.Op == ssa.OpS390XMODD || v.Op == ssa.OpS390XMODW {

			var c *obj.Prog
			c = s.Prog(s390x.ACMP)
			j = s.Prog(s390x.ABEQ)

			c.From.Type = obj.TYPE_REG
			c.From.Reg = divisor
			c.To.Type = obj.TYPE_CONST
			c.To.Offset = -1

			prog.Inst[ix].Next = nil
			prog.Inst[ix] = onePassInst{Inst: instOriginal}
		}
	}
}

// onePassCopy creates a copy of the original Prog, as we'll be modifying it.
func onePassCopy(prog *syntax.Prog) *onePassProg {
	p := &onePassProg{
		Start:  prog.Start,
		NumCap: prog.NumCap,
		Inst:   make([]onePassInst, len(prog.Inst)),
	}
	for i, inst := range prog.Inst {
		p.Inst[i] = onePassInst{Inst: inst}
	}

	// at function entry, and it is ok to clobber registers.
	ZeroRange func(*objw.Progs, *obj.Prog, int64, int64, *uint32) *obj.Prog

	Ginsnop func(*objw.Progs) *obj.Prog

	// SSAMarkMoves marks any MOVXconst ops that need to avoid clobbering flags.
	SSAMarkMoves func(*State, *ssa.Block)

	// SSAGenValue emits Prog(s) for the Value.
	SSAGenValue func(*State, *ssa.Value)

//
// The other fields not yet mentioned are for use by the back ends and should
// be left zeroed by creators of Prog lists.
type Prog struct {
	Ctxt     *Link     // linker context
	Link     *Prog     // next Prog in linked list
	From     Addr      // first source operand