private static void CreateDelegateCtor(TypeSpec ts, Target t, TysilaState s)
{
var ms = ts.m.GetMethodSpec(ts, ".ctor", 0, null);
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
List <cil.CilNode.IRNode> ret = new List <cil.CilNode.IRNode>();
util.Stack <StackItem> stack_before = new util.Stack <StackItem>(0);
TypeSpec fld_ts;
// Enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Store m_target
stack_before = ConvertToIR.ldarg(n, c, stack_before, 0);
stack_before = ConvertToIR.ldarg(n, c, stack_before, 1);
stack_before = ConvertToIR.ldflda(n, c, stack_before, false, out fld_ts, 1, delegate_m_target);
stack_before = ConvertToIR.binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr, 2);
stack_before = ConvertToIR.stind(n, c, stack_before, c.t.GetSize(fld_ts), 1, 0);
stack_before.Pop();
// Store method_ptr
stack_before = ConvertToIR.ldarg(n, c, stack_before, 0);
stack_before = ConvertToIR.ldarg(n, c, stack_before, 2);
stack_before = ConvertToIR.ldflda(n, c, stack_before, false, out fld_ts, 1, delegate_method_ptr);
stack_before = ConvertToIR.binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr, 2);
stack_before = ConvertToIR.stind(n, c, stack_before, c.t.GetSize(fld_ts), 1, 0);
stack_before.Pop();
// Ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, stack_before = stack_before, stack_after = stack_before
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
var msc = new layout.Layout.MethodSpecWithEhdr
{
ms = ms,
c = c
};
s.r.MethodRequestor.Remove(msc);
s.r.MethodRequestor.Request(msc);
}
private static void CreateDelegateEndInvoke(TypeSpec ts, Target t, TysilaState s)
{
var ms = ts.m.GetMethodSpec(ts, "EndInvoke", 0, null);
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
List <cil.CilNode.IRNode> ret = new List <cil.CilNode.IRNode>();
util.Stack <StackItem> stack_before = new util.Stack <StackItem>();
// Enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Error message
stack_before = ConvertToIR.ldstr(n, c, stack_before, "BeginInvoke is currently implemented");
// Create NotImplementedException
var ni_ts = c.ms.m.al.GetAssembly("mscorlib").GetTypeSpec("System", "NotImplementedException");
var ni_ctor_row = ni_ts.m.GetMethodDefRow(ni_ts, ".ctor",
c.special_meths.inst_Rv_s, c.special_meths);
var ni_ctor_ms = new MethodSpec
{
m = ni_ts.m,
type = ni_ts,
mdrow = ni_ctor_row,
msig = (int)ni_ts.m.GetIntEntry(MetadataStream.tid_MethodDef, ni_ctor_row, 4),
};
stack_before = ConvertToIR.newobj(n, c, stack_before, ni_ctor_ms);
stack_before = ConvertToIR.throw_(n, c, stack_before);
// Ret - not reached
//n.irnodes.Add(new cil.CilNode.IRNode { parent = n, opcode = Opcode.oc_ret, ct = ((ret_ts == null) ? ir.Opcode.ct_unknown : Opcode.GetCTFromType(ret_ts)), stack_before = stack_before, stack_after = stack_before });
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
var msc = new layout.Layout.MethodSpecWithEhdr
{
ms = ms,
c = c
};
s.r.MethodRequestor.Remove(msc);
s.r.MethodRequestor.Request(msc);
}
private static util.Stack <StackItem> exit_cli(cil.CilNode n, Code c, util.Stack <StackItem> stack_before)
{
var stack_after = new util.Stack <StackItem>(stack_before);
stack_after.Pop();
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_target_specific, imm_l = x86_exit_cli, stack_before = stack_before, stack_after = stack_after
});
return(stack_after);
}
internal static Code CreateVectorCopyTo(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
util.Stack <StackItem> stack_before = new util.Stack <StackItem>();
// enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// We call a libsupcs method here that expects arguments in the order
// srcInnerArr, dstArr, startIndex (in dstArr), count
var stack_after = ldarg(n, c, stack_before, 0);
stack_after = ldc(n, c, stack_after, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.DataArrayPointer, c.t));
stack_after = binnumop(n, c, stack_after, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_after = ldind(n, c, stack_after, ms.m.SystemIntPtr);
stack_after = ldarg(n, c, stack_after, 1);
stack_after = ldarg(n, c, stack_after, 2);
stack_after = ldarg(n, c, stack_after, 0);
stack_after = ldlen(n, c, stack_after);
//stack_after = ldarg(n, c, stack_after, 2);
//stack_after = binnumop(n, c, stack_after, cil.Opcode.SingleOpcodes.sub, Opcode.ct_int32);
//stack_after = debugger_Break(n, c, stack_after);
stack_after = call(n, c, stack_after, false,
"_ZW34System#2ERuntime#2EInteropServices7Marshal_13CopyToManaged_Rv_P4u1Iu1Oii",
c.special_meths, c.special_meths.array_copyToManaged);
// ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ir.Opcode.ct_unknown, stack_before = stack_after, stack_after = stack_after
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
private static util.Stack <StackItem> portout_dword(cil.CilNode n, Code c, util.Stack <StackItem> stack_before)
{
var stack_after = new util.Stack <StackItem>(stack_before);
stack_after.Pop();
stack_after.Pop();
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = ir.Opcode.oc_x86_portout, vt_size = 4, stack_before = stack_before, stack_after = stack_after, arg_a = 1, arg_b = 0
});
return(stack_after);
}
private static util.Stack <StackItem> enter_cli(cil.CilNode n, Code c, util.Stack <StackItem> stack_before)
{
var stack_after = new util.Stack <StackItem>(stack_before);
stack_after.Push(new StackItem {
ts = c.ms.m.SystemIntPtr
});
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_target_specific, imm_l = x86_enter_cli, stack_before = stack_before, stack_after = stack_after
});
return(stack_after);
}
internal static Code CreateArraySet(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
util.Stack <StackItem> stack_before = new util.Stack <StackItem>(0);
// Returns void
c.ret_ts = ms.m.SystemVoid;
// Get array item type
var given_type = c.la_types[c.la_types.Length - 1];
if (!given_type.Equals(ms.type.other))
{
throw new Exception("Array Set given type not the same as element type");
}
// Enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Get offset to the data item
stack_before = ArrayGetDataItemPtr(n, c, stack_before, ms);
// Load given value and store to the address
stack_before = ldarg(n, c, stack_before, c.la_types.Length - 1);
stack_before = stind(n, c, stack_before, t.GetSize(given_type));
// Ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ir.Opcode.ct_unknown, stack_before = stack_before, stack_after = stack_before
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
internal static Code CreateArrayGet(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
util.Stack <StackItem> stack_before = new util.Stack <StackItem>(0);
// Get return type
var sig_idx = ms.m.GetMethodDefSigRetTypeIndex(ms.msig);
var ret_ts = ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams);
c.ret_ts = ret_ts;
if (!ret_ts.Equals(ms.type.other))
{
throw new Exception("Array Get return type not the same as element type");
}
// Enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Get offset to the data item
stack_before = ArrayGetDataItemPtr(n, c, stack_before, ms);
// Load it
stack_before = ldind(n, c, stack_before, ret_ts);
// Ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ((ret_ts == null) ? ir.Opcode.ct_unknown : Opcode.GetCTFromType(ret_ts)), stack_before = stack_before, stack_after = stack_before
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
private static util.Stack <StackItem> portin_dword(cil.CilNode n, Code c, util.Stack <StackItem> stack_before)
{
var stack_after = new util.Stack <StackItem>(stack_before);
stack_after.Pop();
stack_after.Push(new StackItem {
ts = c.ms.m.SystemUInt32, min_ul = 0, max_ul = uint.MaxValue
});
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = ir.Opcode.oc_x86_portin, vt_size = 4, stack_before = stack_before, stack_after = stack_after, arg_a = 0, res_a = 0
});
return(stack_after);
}
/*internal static Code CreateVectorGetEnumerator(MethodSpec ms,
* Target t)
* {
* Code c = new Code { t = t, ms = ms, s = s };
* t.AllocateLocalVarsArgs(c);
* cil.CilNode n = new cil.CilNode(ms, 0);
*
* util.Stack<StackItem> stack_before = new util.Stack<StackItem>();
*
* // enter
* n.irnodes.Add(new cil.CilNode.IRNode { parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before });
*
*
* }
*/
internal static Code CreateVectorget_Item(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
util.Stack <StackItem> stack_before = new util.Stack <StackItem>();
// enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Get return type
var sig_idx = ms.m.GetMethodDefSigRetTypeIndex(ms.msig);
var ret_ts = ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams);
c.ret_ts = ret_ts;
// implement with ldelem
var stack_after = ldarg(n, c, stack_before, 0);
stack_after = ldarg(n, c, stack_after, 1);
stack_after = ldelem(n, c, stack_after, ms.type.other);
// ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ir.Opcode.ct_unknown, stack_before = stack_before, stack_after = stack_before
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
private static util.Stack <StackItem> math_Round(cil.CilNode n, Code c, util.Stack <StackItem> stack_before)
{
var stack_after = new util.Stack <StackItem>(stack_before);
var old = stack_after.Pop();
// propagate immediate value if there is one
double min_imm = Math.Round(BitConverter.ToDouble(BitConverter.GetBytes(old.min_ul), 0));
double max_imm = Math.Round(BitConverter.ToDouble(BitConverter.GetBytes(old.max_ul), 0));
stack_after.Push(new StackItem {
ts = c.ms.m.GetSimpleTypeSpec(0xd), min_ul = BitConverter.ToUInt64(BitConverter.GetBytes(min_imm), 0), max_ul = BitConverter.ToUInt64(BitConverter.GetBytes(max_imm), 0)
});
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = ir.Opcode.oc_target_specific, imm_l = x86_roundsd_xmm_xmmm64_imm8, stack_before = stack_before, stack_after = stack_after, arg_a = 0, res_a = 0
});
return(stack_after);
}
internal static Code CreateVectorget_Count(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
util.Stack <StackItem> stack_before = new util.Stack <StackItem>();
// enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// ldarg, ldlen
var stack_after = ldarg(n, c, stack_before, 0);
stack_after = ldlen(n, c, stack_after);
// ret
var stack_after2 = new util.Stack <StackItem>(stack_after);
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ir.Opcode.ct_int32, stack_before = stack_after, stack_after = stack_after2
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
internal static Code CreateVectorUnimplemented(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
util.Stack <StackItem> stack_before = new util.Stack <StackItem>();
// Get return type
var sig_idx = ms.m.GetMethodDefSigRetTypeIndex(ms.msig);
var ret_ts = ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams);
c.ret_ts = ret_ts;
// enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// break
var stack_after = debugger_Break(n, c, stack_before);
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
private static util.Stack <StackItem> ArrayGetIndex(Code c, cil.CilNode n, MethodSpec ms, util.Stack <StackItem> stack_before, Target t)
{
/* For a rank 4 array this simplifies to:
*
* (r4-r4lb) + r4len[(r3-r3lb) + r3len[(r2-r2lb) + r2len[(r1-r1lb)]]]
*
* where len is the 'size' member and lb is the lobounds
*
* in ir:
*
* ldc r1
* sub r1lb
*
* mul r2len
* add r2
* sub r2lb
*
* mul r3len
* add r3
* sub r3lb
*
* mul r4len
* add r4
* sub r4lb
*
* and we can simplify lobounds/sizes lookups if we know them
*/
var stack_after = new util.Stack <StackItem>(stack_before);
// ldc r1
stack_after = ldarg(n, c, stack_after, 1);
// sub r1lb
bool lbzero, szone; // optimize away situation where lobounds is zero
stack_after = ArrayGetLobounds(n, c, stack_after, ms, 1, out lbzero);
if (!lbzero)
{
stack_after = binnumop(n, c, stack_after, cil.Opcode.SingleOpcodes.sub, ir.Opcode.ct_int32);
}
for (int rank = 2; rank <= ms.type.arr_rank; rank++)
{
// mul rnlen
stack_after = ArrayGetSize(n, c, stack_after, ms, rank, out szone);
if (!szone)
{
stack_after = binnumop(n, c, stack_after, cil.Opcode.SingleOpcodes.mul, Opcode.ct_int32);
}
// add rn
stack_after = ldarg(n, c, stack_after, rank);
stack_after = binnumop(n, c, stack_after, cil.Opcode.SingleOpcodes.add, Opcode.ct_int32);
// sub rnlb
stack_after = ArrayGetLobounds(n, c, stack_after, ms, rank, out lbzero);
if (!lbzero)
{
stack_after = binnumop(n, c, stack_after, cil.Opcode.SingleOpcodes.sub, ir.Opcode.ct_int32);
}
}
return(stack_after);
}
private static void CreateDelegateInvoke(TypeSpec ts, Target t, TysilaState s)
{
var ms = ts.m.GetMethodSpec(ts, "Invoke", 0, null);
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
List <cil.CilNode.IRNode> ret = new List <cil.CilNode.IRNode>();
util.Stack <StackItem> stack_before = new util.Stack <StackItem>();
TypeSpec fld_ts;
// Enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Load m_target
stack_before = ConvertToIR.ldarg(n, c, stack_before, 0);
stack_before = ConvertToIR.ldflda(n, c, stack_before, false, out fld_ts, 0, delegate_m_target);
stack_before = ConvertToIR.binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ConvertToIR.ldind(n, c, stack_before, fld_ts);
// Duplicate and branch to the static implementation if null
stack_before = ConvertToIR.copy_to_front(n, c, stack_before);
stack_before = ConvertToIR.ldc(n, c, stack_before, 0, (int)CorElementType.Object);
var tstatic = c.next_mclabel--;
stack_before = ConvertToIR.brif(n, c, stack_before, Opcode.cc_eq, tstatic);
var tstatic_stack_in = new util.Stack <StackItem>(stack_before);
// Get number of params and push left to right
var sig_idx = ms.msig;
var pcount = ms.m.GetMethodDefSigParamCount(sig_idx);
for (int i = 0; i < pcount; i++)
{
stack_before = ConvertToIR.ldarg(n, c, stack_before, i + 1);
}
// Load method_ptr
stack_before = ConvertToIR.ldarg(n, c, stack_before, 0);
stack_before = ConvertToIR.ldflda(n, c, stack_before, false, out fld_ts, 0, delegate_method_ptr);
stack_before = ConvertToIR.binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ConvertToIR.ldind(n, c, stack_before, fld_ts);
// Build new method signature containing System.Object followed by the parameters of Invoke
sig_idx = ms.m.GetMethodDefSigRetTypeIndex(sig_idx);
var ret_ts = ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams);
List <TypeSpec> p = new List <TypeSpec>();
p.Add(ms.m.SystemObject);
for (int i = 0; i < pcount; i++)
{
p.Add(ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams));
}
var new_msig = c.special_meths.CreateMethodSignature(ret_ts, p.ToArray());
c.ret_ts = ret_ts;
// Calli
stack_before = ConvertToIR.call(n, c, stack_before, true, "noname", c.special_meths, new_msig);
// Ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ((ret_ts == null) ? ir.Opcode.ct_unknown : Opcode.GetCTFromType(ret_ts)), stack_before = stack_before, stack_after = stack_before
});
// Static version of above
stack_before = mclabel(n, c, tstatic_stack_in, tstatic);
stack_before = ConvertToIR.pop(n, c, stack_before); // remove null m_target pointer
// Get number of params and push left to right
sig_idx = ms.msig;
pcount = ms.m.GetMethodDefSigParamCount(sig_idx);
for (int i = 0; i < pcount; i++)
{
stack_before = ConvertToIR.ldarg(n, c, stack_before, i + 1);
}
// Load method_ptr
stack_before = ConvertToIR.ldarg(n, c, stack_before, 0);
stack_before = ConvertToIR.ldflda(n, c, stack_before, false, out fld_ts, 0, delegate_method_ptr);
stack_before = ConvertToIR.binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ConvertToIR.ldind(n, c, stack_before, fld_ts);
// Build new method signature containing the parameters of Invoke
sig_idx = ms.m.GetMethodDefSigRetTypeIndex(sig_idx);
ret_ts = ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams);
p = new List <TypeSpec>();
for (int i = 0; i < pcount; i++)
{
p.Add(ms.m.GetTypeSpec(ref sig_idx, ms.gtparams, ms.gmparams));
}
new_msig = c.special_meths.CreateMethodSignature(ret_ts, p.ToArray());
c.ret_ts = ret_ts;
// Calli
stack_before = ConvertToIR.call(n, c, stack_before, true, "noname", c.special_meths, new_msig);
// Ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ((ret_ts == null) ? ir.Opcode.ct_unknown : Opcode.GetCTFromType(ret_ts)), stack_before = stack_before, stack_after = stack_before
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
var msc = new layout.Layout.MethodSpecWithEhdr
{
ms = ms,
c = c
};
s.r.MethodRequestor.Remove(msc);
s.r.MethodRequestor.Request(msc);
}
internal static Code CreateArrayCtor1(MethodSpec ms,
Target t, TysilaState s)
{
Code c = new Code {
t = t, ms = ms, s = s
};
t.AllocateLocalVarsArgs(c);
cil.CilNode n = new cil.CilNode(ms, 0);
List <cil.CilNode.IRNode> ret = new List <cil.CilNode.IRNode>();
util.Stack <StackItem> stack_before = new util.Stack <StackItem>(0);
// Enter
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_enter, stack_before = stack_before, stack_after = stack_before
});
// Set elem type vtbl pointer
stack_before = ldarg(n, c, stack_before, 0);
stack_before = ldc(n, c, stack_before, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.ElemTypeVtblPointer, t), 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ldlab(n, c, stack_before, ms.type.other.MangleType());
s.r.VTableRequestor.Request(ms.type.other.Box);
stack_before = stind(n, c, stack_before, t.GetPointerSize());
// Set lobounds array and pointer
stack_before = ldarg(n, c, stack_before, 0);
stack_before = ldc(n, c, stack_before, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.LoboundsPointer, t), 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ldc(n, c, stack_before, t.GetSize(ms.m.SystemInt32) * ms.type.arr_rank);
stack_before = call(n, c, stack_before, false, "gcmalloc", c.special_meths, c.special_meths.gcmalloc);
for (int i = 0; i < ms.type.arr_rank; i++)
{
stack_before = copy_to_front(n, c, stack_before);
if (i != 0)
{
stack_before = ldc(n, c, stack_before, t.GetSize(ms.m.SystemInt32) * i, 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
}
stack_before = ldc(n, c, stack_before, 0); // lobounds implied to be 0
stack_before = stind(n, c, stack_before, t.GetSize(ms.m.SystemInt32));
}
stack_before = stind(n, c, stack_before, t.GetPointerSize());
// Set sizes array and pointer
stack_before = ldarg(n, c, stack_before, 0);
stack_before = ldc(n, c, stack_before, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.SizesPointer, t), 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ldc(n, c, stack_before, t.GetSize(ms.m.SystemInt32) * ms.type.arr_rank);
stack_before = call(n, c, stack_before, false, "gcmalloc", c.special_meths, c.special_meths.gcmalloc);
for (int i = 0; i < ms.type.arr_rank; i++)
{
stack_before = copy_to_front(n, c, stack_before);
if (i != 0)
{
stack_before = ldc(n, c, stack_before, t.GetSize(ms.m.SystemInt32) * i, 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
}
stack_before = ldarg(n, c, stack_before, 1 + i);
stack_before = stind(n, c, stack_before, t.GetSize(ms.m.SystemInt32));
}
stack_before = stind(n, c, stack_before, t.GetPointerSize());
// Set data array pointer
stack_before = ldarg(n, c, stack_before, 0);
stack_before = ldc(n, c, stack_before, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.DataArrayPointer, t), 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
if (ms.type.arr_rank == 0)
{
stack_before = ldc(n, c, stack_before, 0);
}
else
{
stack_before = ldarg(n, c, stack_before, 1); // don't need to subtract lobounds for ctor1
}
for (int i = 1; i < ms.type.arr_rank; i++)
{
stack_before = ldarg(n, c, stack_before, 1 + i); // load size
// don't need to subtract lobounds here
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.mul);
}
var et_size = t.GetSize(ms.type.other);
if (et_size > 1)
{
stack_before = ldc(n, c, stack_before, et_size);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.mul);
}
stack_before = call(n, c, stack_before, false, "gcmalloc", c.special_meths, c.special_meths.gcmalloc);
stack_before = stind(n, c, stack_before, t.GetPointerSize());
// Set Rank
stack_before = ldarg(n, c, stack_before, 0);
stack_before = ldc(n, c, stack_before, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.Rank, t), 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ldc(n, c, stack_before, ms.type.arr_rank);
stack_before = stind(n, c, stack_before, t.GetSize(ms.m.SystemInt32));
// Set Elem Size
stack_before = ldarg(n, c, stack_before, 0);
stack_before = ldc(n, c, stack_before, layout.Layout.GetArrayFieldOffset(layout.Layout.ArrayField.ElemTypeSize, t), 0x18);
stack_before = binnumop(n, c, stack_before, cil.Opcode.SingleOpcodes.add, Opcode.ct_intptr);
stack_before = ldc(n, c, stack_before, et_size);
stack_before = stind(n, c, stack_before, t.GetSize(ms.m.SystemInt32));
// Ret
n.irnodes.Add(new cil.CilNode.IRNode {
parent = n, opcode = Opcode.oc_ret, ct = ir.Opcode.ct_unknown, stack_before = stack_before, stack_after = stack_before
});
c.cil = new List <cil.CilNode> {
n
};
c.ir = n.irnodes;
c.starts = new List <cil.CilNode> {
n
};
return(c);
}
protected internal override Code AssembleBoxRetTypeMethod(MethodSpec ms, TysilaState s)
{
// Move all parameters up one - this will require knowledge of the param locs
// if the return type is an object (to get the 'from' locations) and
// knowledge of the param locs in the target method (the 'to' locations)
// Allocate space on heap (boxed return object)
var cc = cc_map[ms.CallingConvention];
var cc_class_map = cc_classmap[ms.CallingConvention];
int stack_loc = 0;
var from_locs = GetRegLocs(new ir.Param
{
m = ms.m,
ms = ms,
}, ref stack_loc, cc, cc_class_map,
ms.CallingConvention,
out var from_sizes, out var from_types,
null);
stack_loc = 0;
var to_locs = GetRegLocs(new ir.Param
{
m = ms.m,
ms = ms,
}, ref stack_loc, cc, cc_class_map,
ms.CallingConvention,
out var to_sizes, out var to_types,
ms.m.SystemIntPtr);
// Generate code
var c = new Code();
c.mc = new List <MCInst>();
c.s = s;
var n = new cil.CilNode(ms, 0);
var ir = new cil.CilNode.IRNode {
parent = n, mc = c.mc
};
ir.opcode = Opcode.oc_nop;
n.irnodes.Add(ir);
c.starts = new List <cil.CilNode>();
c.starts.Add(n);
c.ms = ms;
c.t = this;
// copy from[0:n] to to[1:n+1] in reverse order so
// we don't overwrite the previous registers
ulong defined = 0;
for (int i = from_locs.Length - 1; i >= 0; i--)
{
handle_move(to_locs[i + 1], from_locs[i], c.mc, ir, c, x86_64.x86_64_Assembler.r_rax, from_sizes[i]);
defined |= to_locs[i + 1].mask;
}
// call gcmalloc with the size of the boxed version of the return
// type
var ts = ms.ReturnType;
var tsize = GetSize(ts);
var sysobj_size = layout.Layout.GetTypeSize(c.ms.m.SystemObject, c.t);
var boxed_size = util.util.align(sysobj_size + tsize, psize);
// decide on the registers we need to save around gcmalloc
var caller_preserves = cc_caller_preserves_map[ms.CallingConvention];
var to_push = new util.Set();
to_push.Union(defined);
to_push.Intersect(caller_preserves);
List <Reg> push_list = new List <Reg>();
while (!to_push.Empty)
{
var first_set = to_push.get_first_set();
push_list.Add(c.t.regs[first_set]);
to_push.unset(first_set);
}
int push_length = 0;
foreach (var r in push_list)
{
handle_push(r, ref push_length, c.mc, ir, c);
}
c.mc.Add(inst(x86_call_rel32, new Param {
t = Opcode.vl_call_target, str = "gcmalloc"
},
new Param {
t = Opcode.vl_c32, v = boxed_size
}, ir));
for (int i = push_list.Count - 1; i >= 0; i--)
{
handle_pop(push_list[i], ref push_length, c.mc, ir, c);
}
// put vtable pointer into gcmalloc result
c.mc.Add(inst(x86_mov_rm32_lab, new ContentsReg {
basereg = r_eax, size = 4
},
new Param {
t = Opcode.vl_str, str = ts.MangleType()
}, ir));
// put rax into to[0]
handle_move(to_locs[0], r_eax, c.mc, ir, c);
// unbox to[0] (i.e. increment pointer so it points to the inner data)
c.mc.Add(inst(psize == 4 ? x86_add_rm32_imm8 : x86_add_rm64_imm8, to_locs[0], sysobj_size, ir));
// call the actual function (see AssembleBoxedMethod below)
var unboxed = ms.Unbox;
var act_meth = unboxed.MangleMethod();
s.r.MethodRequestor.Request(unboxed);
// Save rax around the call and return it
// We do this because the actual method returns the address of a value type in rax
// and we want to return the address of the boxed object instead
c.mc.Add(inst(x86_push_r32, r_eax, ir));
c.mc.Add(inst(x86_call_rel32, new Param {
t = Opcode.vl_str, str = act_meth
}, ir));
c.mc.Add(inst(x86_pop_r32, r_eax, ir));
c.mc.Add(inst(x86_ret, ir));
return(c);
}