// Ranjay
public static ExpressionInstruction generateTile(MemIR mem, TempTable tTable) {
ExpressionInstruction inst = new ExpressionInstruction();
SyntaxIR address = (SyntaxIR) mem.getChildren().get(0);
Instruction childInst = generateTile(address, tTable);
inst.addAll(childInst.getTiles());
AddressingMode addr = ((ExpressionInstruction) childInst).getAddr();
if (addr.getMemAccess()) {
inst.add(new Tile(1, "movq", addr, new AddressingMode("r12")));
inst.setAddr(new AddressingMode(true, "r12"));
} else {
inst.setAddr(new AddressingMode(true, addr.getBaseReg()));
}
return inst;
}
// Ranjay
public static Instruction generateTile(CallIR call, TempTable tTable) {
ExpressionInstruction inst = new ExpressionInstruction();
// Push caller saved: rcx,rdx,rsp,rsi,rdi,r8,r9,r10,r11
inst.add(
new Tile(
1,
"movq",
new AddressingMode("rcx"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rcx"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("rdx"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rdx"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("rsp"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rsp"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("rsi"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rsi"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("rdi"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rdi"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("r8"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r8"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("r9"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r9"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("r10"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r10"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("r11"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r11"), "rbp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode("r15"),
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r15"), "rbp")));
inst.add(new Tile(1, "pushq", new AddressingMode("rbx"), null));
inst.add(new Tile(1, "pushq", new AddressingMode("rbp"), null));
// handle arguments
Instruction args = handleArguments(call, tTable);
inst.addAll(args.getTiles());
// make call
Instruction ooo = makeCall(call, tTable);
inst.addAll(ooo.getTiles());
// pop caller saved
inst.add(new Tile(1, "popq", new AddressingMode("rbp"), null));
inst.add(new Tile(1, "popq", new AddressingMode("rbx"), null));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r15"), "rbp"),
new AddressingMode("r15")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r11"), "rbp"),
new AddressingMode("r11")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r10"), "rbp"),
new AddressingMode("r10")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r9"), "rbp"),
new AddressingMode("r9")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("r8"), "rbp"),
new AddressingMode("r8")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rdi"), "rbp"),
new AddressingMode("rdi")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rsi"), "rbp"),
new AddressingMode("rsi")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rsp"), "rbp"),
new AddressingMode("rsp")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rdx"), "rbp"),
new AddressingMode("rdx")));
inst.add(
new Tile(
1,
"movq",
new AddressingMode(
-1 * tTable.getCurrentFunction().getStackLocation().get("rcx"), "rbp"),
new AddressingMode("rcx")));
inst.setAddr(new AddressingMode("rax"));
return inst;
}
// Ranjay
public static ExpressionInstruction generateTile(OpIR op, TempTable tTable) {
ExpressionInstruction inst = new ExpressionInstruction();
if (op.getChildren().size() > 1) {
ExpressionInstruction child1 =
(ExpressionInstruction) generateTile((SyntaxIR) op.getChildren().get(0), tTable);
ExpressionInstruction child2 =
(ExpressionInstruction) generateTile((SyntaxIR) op.getChildren().get(1), tTable);
inst.addAll(child1.getTiles());
inst.add(new Tile(1, "pushq", child1.getAddr(), null));
inst.addAll(child2.getTiles());
inst.add(new Tile(1, "movq", child2.getAddr(), new AddressingMode("r12")));
inst.add(new Tile(1, "popq", new AddressingMode("r13"), null));
if (op.getOp() == opEnum.DIVIDE || op.getOp() == opEnum.MODULO) {
inst.add(new Tile(1, "pushq", new AddressingMode("rdx"), null));
inst.add(new Tile(1, "pushq", new AddressingMode("rax"), null));
inst.add(new Tile(1, "movq", new AddressingMode("r13"), new AddressingMode("rax")));
// we need to sign extend r13 into rdx
inst.add(new Tile(1, "cmp", new AddressingMode(0), new AddressingMode("r13")));
// if r12 is less than 0 we move FFFFFFFFFFFFFFFF to rdx otherwise move zero
int div = tTable.getNewJumpLabel();
inst.add(new Tile(1, "jl", new AddressingMode("div" + div, true), null));
// fall through to moving zero
inst.add(new Tile(1, "movq", new AddressingMode(0), new AddressingMode("rdx")));
inst.add(new Tile(1, "jmp", new AddressingMode("divEnd" + div, true), null));
inst.add(new Tile(1, "div" + div + ":", null, null));
inst.add(new Tile(1, "movq", new AddressingMode(-1), new AddressingMode("rdx")));
inst.add(new Tile(1, "divEnd" + div + ":", null, null));
inst.add(new Tile(1, "idiv", new AddressingMode("r12"), null));
// The result is put in RAX so we need to push that on the stack
if (op.getOp() == opEnum.DIVIDE)
inst.add(new Tile(1, "movq", new AddressingMode("rax"), new AddressingMode("r12")));
else inst.add(new Tile(1, "movq", new AddressingMode("rdx"), new AddressingMode("r12")));
inst.add(new Tile(1, "popq", new AddressingMode("rax"), null));
inst.add(new Tile(1, "popq", new AddressingMode("rdx"), null));
inst.setAddr(new AddressingMode("r12"));
} else if (op.returnsBool() && op.getOp() != opEnum.AND && op.getOp() != opEnum.OR) {
int x = tTable.getNewJumpLabel();
inst.add(new Tile(1, "cmp", new AddressingMode("r12"), new AddressingMode("r13")));
inst.add(new Tile(1, op.opToAssembly(), new AddressingMode("_true" + x, true), null));
inst.add(new Tile(1, "movq", new AddressingMode(0), new AddressingMode("r12")));
inst.add(new Tile(1, "jmp", new AddressingMode("_end" + x, true), null));
inst.add(new Tile(1, "_true" + x + ": ", null, null));
inst.add(new Tile(1, "movq", new AddressingMode(1), new AddressingMode("r12")));
inst.add(new Tile(1, "_end" + x + ": ", null, null));
inst.setAddr(new AddressingMode("r12"));
} else if (op.getOp() == opEnum.LSHIFT || op.getOp() == opEnum.RSHIFT) {
inst.add(new Tile(1, op.opToAssembly(), new AddressingMode(3), new AddressingMode("r13")));
inst.setAddr(new AddressingMode("r13"));
} else {
inst.add(
new Tile(1, op.opToAssembly(), new AddressingMode("r12"), new AddressingMode("r13")));
inst.setAddr(new AddressingMode("r13"));
}
} else {
ExpressionInstruction child =
(ExpressionInstruction) generateTile((SyntaxIR) op.getChildren().get(0), tTable);
inst.addAll(child.getTiles());
switch (op.getOp()) {
case NOT:
inst.add(new Tile(1, "btc", new AddressingMode(0), child.getAddr()));
inst.setAddr(child.getAddr());
break;
case UNARY_MINUS:
inst.add(new Tile(1, "neg", child.getAddr(), null));
inst.setAddr(child.getAddr());
break;
}
}
return inst;
}
