C# ProcedureBuilder.Reg32方法代码示例

        private void AssertSmallConst(string sExp, int shift, uint mult)
        {
            var m = new ProcedureBuilder();
            var c = Constant.Int32((int)mult);
            var r1 = m.Reg32("r1", 1);
            var r2 = m.Reg32("r2", 2);
            var r2_r1 = m.Frame.EnsureSequence(r2.Storage, r1.Storage, PrimitiveType.Word64);

            var ass = m.Assign(r2_r1, m.SMul(r1, c));
            m.Emit(new AliasAssignment(r2, m.Slice(PrimitiveType.Word32, r2_r1, 32)));
            if (shift != 0)
                m.Assign(r2, m.Sar(r2, shift));

            var proc = m.Procedure;
            var ssa = new SsaTransform(
                null, 
                proc,
                null,
                proc.CreateBlockDominatorGraph(),
                new HashSet<RegisterStorage>()).Transform();
            var ctx = new SsaEvaluationContext(null, ssa.Identifiers);
            var rule = new ConstDivisionImplementedByMultiplication(ssa);
            ctx.Statement = proc.EntryBlock.Succ[0].Statements[0];
            Assert.IsTrue(rule.Match(ass));
            ass = rule.TransformInstruction();
            Assert.AreEqual(sExp, ass.Src.ToString());
        }

        public void SsaCallIndirect()
        {
            var m = new ProcedureBuilder("SsaCallIndirect");
            var r1 = m.Reg32("r1");
            var r2 = m.Reg32("r2");
            m.Assign(r1, m.LoadDw(r2));
            m.Call(r1, 4);
            m.Return();

            RunUnitTest(m, "Analysis/SsaCallIndirect.txt");
        }

        public void VpAddress32Const()
        {
            var m = new ProcedureBuilder("VpAddress32Const");
            var r1 = m.Reg32("r1", 1);
            m.Assign(r1, Address.Ptr32(0x00123400));
            m.Assign(r1, m.Load(r1.DataType, m.IAdd(r1, 0x56)));
            m.Return();

            mr.ReplayAll();
            RunFileTest(m, "Analysis/VpAddress32Const.txt");
        }

        public void VpIndirectCall()
        {
            var callee = CreateExternalProcedure("foo", RegArg(1, "r1"), StackArg(4), StackArg(8));
            var pc = new ProcedureConstant(PrimitiveType.Pointer32, callee);

            var m = new ProcedureBuilder();
            var r1 = m.Reg32("r1", 1);
            var sp = m.Frame.EnsureRegister(m.Architecture.StackRegister);
            m.Assign(r1, pc);
            m.Assign(sp, m.ISub(sp, 4));
            m.Store(sp, 3);
            m.Assign(sp, m.ISub(sp, 4));
            m.Store(sp, m.LoadW(m.Word32(0x1231230)));
            m.Call(r1, 4);
            m.Return();

            arch.Stub(a => a.CreateStackAccess(null, 0, null))
                .IgnoreArguments()
                .Do(new Func<Frame, int, DataType, Expression>((f, off, dt) => m.Load(dt, m.IAdd(sp, off))));
            mr.ReplayAll();

            var ssa = RunTest(m);
            var sExp =
            #region Expected
@"r1_0: orig: r1
    def:  r1_0 = foo
r63:r63
    def:  def r63
    uses: r63_2 = r63 - 0x00000004
          Mem3[r63 - 0x00000004:word32] = 0x00000003
          r63_4 = r63 - 0x00000008
          Mem5[r63 - 0x00000008:word16] = Mem3[0x01231230:word16]
          r1_6 = foo(Mem8[r63 - 0x00000008:word32], Mem9[r63 - 0x00000004:word32])
          r1_6 = foo(Mem8[r63 - 0x00000008:word32], Mem9[r63 - 0x00000004:word32])
r63_2: orig: r63
    def:  r63_2 = r63 - 0x00000004
Mem3: orig: Mem0
    def:  Mem3[r63 - 0x00000004:word32] = 0x00000003
    uses: Mem5[r63 - 0x00000008:word16] = Mem3[0x01231230:word16]
r63_4: orig: r63
    def:  r63_4 = r63 - 0x00000008
Mem5: orig: Mem0
    def:  Mem5[r63 - 0x00000008:word16] = Mem3[0x01231230:word16]
r1_6: orig: r1
    def:  r1_6 = foo(Mem8[r63 - 0x00000008:word32], Mem9[r63 - 0x00000004:word32])
r63_7: orig: r63
Mem8: orig: Mem0
    uses: r1_6 = foo(Mem8[r63 - 0x00000008:word32], Mem9[r63 - 0x00000004:word32])
Mem9: orig: Mem0
    uses: r1_6 = foo(Mem8[r63 - 0x00000008:word32], Mem9[r63 - 0x00000004:word32])
// ProcedureBuilder
// Return size: 0
void ProcedureBuilder()
ProcedureBuilder_entry:
	def r63
	// succ:  l1
l1:
	r1_0 = foo
	r63_2 = r63 - 0x00000004
	Mem3[r63 - 0x00000004:word32] = 0x00000003
	r63_4 = r63 - 0x00000008
	Mem5[r63 - 0x00000008:word16] = Mem3[0x01231230:word16]
	r1_6 = foo(Mem8[r63 - 0x00000008:word32], Mem9[r63 - 0x00000004:word32])
	return
	// succ:  ProcedureBuilder_exit
ProcedureBuilder_exit:
";
            #endregion
            AssertStringsEqual(sExp, ssa);
        }

        public void VpCastRealConstant()
        {
            var m = new ProcedureBuilder();
            var r1 = m.Reg32("r1", 1);

            m.Assign(r1, m.Cast(PrimitiveType.Real32, ConstantReal.Real64(1)));

            var ssa = RunTest(m);
            var sExp =
            #region Expected
@"r1_0: orig: r1
    def:  r1_0 = 1.0F
// ProcedureBuilder
// Return size: 0
void ProcedureBuilder()
ProcedureBuilder_entry:
	// succ:  l1
l1:
	r1_0 = 1.0F
ProcedureBuilder_exit:
";
            #endregion

            AssertStringsEqual(sExp, ssa);
        }

        public void VpLoadDpbSmallerCast()
        {
            var m = new ProcedureBuilder();
            var a2 = m.Reg32("a2", 10);
            var d3 = m.Reg32("d3", 3);
            var tmp = m.Temp(PrimitiveType.Word16, "tmp");

            m.Assign(tmp, m.LoadW(a2));
            m.Assign(d3, m.Dpb(d3, tmp, 0));
            m.Store(m.IAdd(a2, 4), m.Cast(PrimitiveType.Byte, d3));

            SsaState ssa = RunTest(m);

            var sExp =
            #region Expected
@"a2:a2
    def:  def a2
    uses: tmp_2 = Mem0[a2:word16]
          Mem5[a2 + 0x00000004:byte] = (byte) tmp_2
Mem0:Global memory
    def:  def Mem0
    uses: tmp_2 = Mem0[a2:word16]
tmp_2: orig: tmp
    def:  tmp_2 = Mem0[a2:word16]
    uses: d3_4 = DPB(d3, tmp_2, 0)
          Mem5[a2 + 0x00000004:byte] = (byte) tmp_2
d3:d3
    def:  def d3
    uses: d3_4 = DPB(d3, tmp_2, 0)
d3_4: orig: d3
    def:  d3_4 = DPB(d3, tmp_2, 0)
Mem5: orig: Mem0
    def:  Mem5[a2 + 0x00000004:byte] = (byte) tmp_2
// ProcedureBuilder
// Return size: 0
void ProcedureBuilder()
ProcedureBuilder_entry:
	def a2
	def Mem0
	def d3
	// succ:  l1
l1:
	tmp_2 = Mem0[a2:word16]
	d3_4 = DPB(d3, tmp_2, 0)
	Mem5[a2 + 0x00000004:byte] = (byte) tmp_2
ProcedureBuilder_exit:
";
            #endregion

            AssertStringsEqual(sExp, ssa);
        }

        public void VpDbpDbp()
        {
            var m = new ProcedureBuilder();
            var d1 = m.Reg32("d32",0);
            var a1 = m.Reg32("a32",1);

            m.Assign(d1, m.Dpb(d1, m.LoadW(a1), 0));
            m.Assign(d1, m.Dpb(d1, m.LoadW(m.IAdd(a1, 4)), 0));

			Procedure proc = m.Procedure;
			var gr = proc.CreateBlockDominatorGraph();
            var importResolver = MockRepository.GenerateStub<IImportResolver>();
            importResolver.Replay();
			var sst = new SsaTransform(new ProgramDataFlow(), proc, importResolver, gr, new HashSet<RegisterStorage>());
			var ssa = sst.SsaState;

			var vp = new ValuePropagator(arch, ssa);
			vp.Transform();

			using (FileUnitTester fut = new FileUnitTester("Analysis/VpDpbDpb.txt"))
			{
				proc.Write(false, fut.TextWriter);
				fut.TextWriter.WriteLine();
				fut.AssertFilesEqual();
			}
		}

        public void Usb_ParseFunctionDeclaration_WithRegisterArgs()
        {
            var arch = new FakeArchitecture();
            var m = new ProcedureBuilder(arch, "test");
            var r1 = m.Reg32("r1", 1);
            var r2 = m.Reg32("r2", 2);
            m.Store(m.Word32(0x123400), m.Cast(PrimitiveType.Byte, r1));
            m.Store(m.Word32(0x123404), m.Cast(PrimitiveType.Real32, r2));
            m.Return();

            var usb = new UserSignatureBuilder(program);
            usb.ApplySignatureToProcedure(
                Address.Create(PrimitiveType.Pointer32, 0x1000),
                new ProcedureSignature(
                    null,
                    new Identifier("r2", PrimitiveType.Char, r1.Storage),  // perverse but legal.
                    new Identifier("r1", PrimitiveType.Real32, r2.Storage)),
                m.Procedure);
            var sExp = @"// test
// Return size: 0
void test(char r2, real32 r1)
test_entry:
	// succ:  l1
l1:
	r1 = r2
	r2 = r1
	Mem0[0x00123400:byte] = (byte) r1
	Mem0[0x00123404:real32] = (real32) r2
	return
	// succ:  test_exit
test_exit:
";
            var sb = new StringWriter();
            m.Procedure.Write(false, sb);
            Assert.AreEqual(sExp, sb.ToString());
        }

        public void VpDbpDbp()
        {
            var m = new ProcedureBuilder();
            var d1 = m.Reg32("d32");
            var a1 = m.Reg32("a32");
            var tmp = m.Frame.CreateTemporary(PrimitiveType.Word16);

            m.Assign(d1, m.Dpb(d1, m.LoadW(a1), 0, 16));
            m.Assign(d1, m.Dpb(d1, m.LoadW(m.IAdd(a1, 4)), 0, 16));

            Procedure proc = m.Procedure;
            var gr = proc.CreateBlockDominatorGraph();
            SsaTransform sst = new SsaTransform(new ProgramDataFlow(), proc, gr);
            SsaState ssa = sst.SsaState;

            ssa.DebugDump(true);

            var vp = new ValuePropagator(arch, ssa.Identifiers, proc);
            vp.Transform();

            using (FileUnitTester fut = new FileUnitTester("Analysis/VpDpbDpb.txt"))
            {
                proc.Write(false, fut.TextWriter);
                fut.TextWriter.WriteLine();
                fut.AssertFilesEqual();
            }
        }