public void Spbp_TwoExits()
{
var m = new SsaProcedureBuilder(nameof(Spbp_TwoExits));
Given_FramePointer(m);
Given_StackPointer(m);
var sp_1 = m.Reg("sp_1", m.Architecture.StackRegister);
var sp_2 = m.Reg("sp_2", m.Architecture.StackRegister);
var sp_3 = m.Reg("sp_3", m.Architecture.StackRegister);
var sp_4 = m.Reg("sp_4", m.Architecture.StackRegister);
var sp_5 = m.Reg("sp_5", m.Architecture.StackRegister);
var sp_6 = m.Reg("sp_6", m.Architecture.StackRegister);
m.AddDefToEntryBlock(fp);
m.Assign(sp_1, m.ISub(fp, m.Int32(4)));
m.BranchIf(m.Eq0(m.Mem32(m.Word32(0x1))), "m_eq0");
m.Label("m_ne0");
// Indirect call = hell node
m.Call(m.Mem32(m.Word32(0x4)), 4,
new[] { sp_1 },
new[] { sp_2 });
m.Assign(sp_3, m.IAdd(sp_2, m.Int32(4)));
m.Return();
m.Label("m_eq0");
// Indirect call = hell node
m.Call(m.Mem32(m.Word32(0x8)), 4,
new[] { sp_1 },
new[] { sp_4 });
m.Assign(sp_5, m.IAdd(sp_4, m.Int32(4)));
m.Return();
m.AddPhiToExitBlock(sp_6, (sp_3, "m_ne0"), (sp_5, "m_eq0"));
m.AddUseToExitBlock(sp_6);
RunTest(m.Ssa);
var sExp =
#region Expected
@"Spbp_TwoExits_entry:
def fp
l1:
sp_1 = fp - 4
branch Mem7[0x00000001:word32] == 0x00000000 m_eq0
goto m_ne0
m_eq0:
call Mem9[0x00000008:word32] (retsize: 4;)
uses: sp:sp_1
sp_4 = fp - 4
sp_5 = fp
return
m_ne0:
call Mem8[0x00000004:word32] (retsize: 4;)
uses: sp:sp_1
sp_2 = fp - 4
sp_3 = fp
return
Spbp_TwoExits_exit:
sp_6 = PHI((sp_3, m_ne0), (sp_5, m_eq0))
use sp_6
";
#endregion
AssertStringsEqual(sExp, m.Ssa);
}
