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

package ssa

// machine-independent optimization.
func opt(f *Func) {
	applyRewrite(f, rewriteBlockgeneric, rewriteValuegeneric, removeDeadValues)

		if x_1.Op != OpConst64 {
			break
		}
		s := auxIntToInt64(x_1.AuxInt)
		if !(s >= 56) {
			break
		}
		v.copyOf(x)
		return true
	}
	return false
}
func rewriteBlockgeneric(b *Block) bool {
	switch b.Kind {
	case BlockIf:
		// match: (If (Not cond) yes no)
		// result: (If cond no yes)
		for b.Controls[0].Op == OpNot {
			v_0 := b.Controls[0]