github.com/cloudwego/iasm@v0.2.0/x86_64/instructions_test.go (about)

     1  //
     2  // Copyright 2024 CloudWeGo Authors
     3  //
     4  // Licensed under the Apache License, Version 2.0 (the "License");
     5  // you may not use this file except in compliance with the License.
     6  // You may obtain a copy of the License at
     7  //
     8  //     http://www.apache.org/licenses/LICENSE-2.0
     9  //
    10  // Unless required by applicable law or agreed to in writing, software
    11  // distributed under the License is distributed on an "AS IS" BASIS,
    12  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  // See the License for the specific language governing permissions and
    14  // limitations under the License.
    15  //
    16  
    17  package x86_64
    18  
    19  import (
    20      `testing`
    21  
    22      `github.com/davecgh/go-spew/spew`
    23  )
    24  
    25  func TestInstr_Encode(t *testing.T) {
    26      m := []byte(nil)
    27      a := CreateArch()
    28      p := a.CreateProgram()
    29      p.VPERMIL2PD(7, Sib(R8, R9, 1, 12345), YMM1, YMM2, YMM3).encode(&m)
    30      spew.Dump(m)
    31  }
    32  
    33  func TestInstr_EncodeSegment(t *testing.T) {
    34      m := []byte(nil)
    35      a := CreateArch()
    36      p := a.CreateProgram()
    37      p.MOVQ(Abs(0x30), RCX).GS().encode(&m)
    38      spew.Dump(m)
    39  }
    40  
    41  func BenchmarkInstr_Encode(b *testing.B) {
    42      a := CreateArch()
    43      m := make([]byte, 0, 16)
    44      p := a.CreateProgram()
    45      p.VPERMIL2PD(7, Sib(R8, R9, 1, 12345), YMM1, YMM2, YMM3).encode(&m)
    46      p.Free()
    47      b.SetBytes(int64(len(m)))
    48      b.ResetTimer()
    49      for i := 0; i < b.N; i++ {
    50          m = m[:0]
    51          p = a.CreateProgram()
    52          p.VPERMIL2PD(7, Sib(R8, R9, 1, 12345), YMM1, YMM2, YMM3).encode(&m)
    53          p.Free()
    54      }
    55  }