//
// Copyright 2024 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

package x86_64

import (
    `bytes`
    `testing`

    `github.com/cloudwego/iasm/expr`
    `github.com/davecgh/go-spew/spew`
)

func TestProgram_Assemble(t *testing.T) {
    a := CreateArch()
    b := CreateLabel("bak")
    s := CreateLabel("tab")
    j := CreateLabel("jmp")
    p := a.CreateProgram()
    p.JMP    (j)
    p.JMP    (j)
    p.Link   (b)
    p.Data   (bytes.Repeat([]byte { 0x0f, 0x1f, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00 }, 15))
    p.Data   ([]byte { 0x0f, 0x1f, 0x00 })
    p.JMP    (b)
    p.Link   (j)
    p.LEAQ   (Ref(s), RDI)
    p.MOVSLQ (Sib(RDI, RAX, 4, -4), RAX)
    p.ADDQ   (RDI, RAX)
    p.JMPQ   (RAX)
    p.Align  (32, expr.Int(0xcc))
    p.Link   (s)
    p.Long   (expr.Ref(s.Retain()).Sub(expr.Ref(j.Retain())))
    p.Long   (expr.Ref(s.Retain()).Sub(expr.Ref(b.Retain())))
    spew.Dump(p.AssembleAndFree(0))
}