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stage2: sparc64: Implement airIntCast basics

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This commit is contained in:
Koakuma 2022-06-16 23:31:04 +07:00
parent 36bfe4b7ef
commit 513ab4eb56
1 changed files with 19 additions and 1 deletions
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20
src/arch/sparc64/CodeGen.zig
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@ -583,7 +583,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
.dbg_stmt => try self.airDbgStmt(inst),
.fptrunc => @panic("TODO try self.airFptrunc(inst)"),
.fpext => @panic("TODO try self.airFpext(inst)"),
.intcast => @panic("TODO try self.airIntCast(inst)"),
.intcast => try self.airIntCast(inst),
.trunc => @panic("TODO try self.airTrunc(inst)"),
.bool_to_int => @panic("TODO try self.airBoolToInt(inst)"),
.is_non_null => @panic("TODO try self.airIsNonNull(inst)"),
@ -1465,6 +1465,24 @@ fn airFence(self: *Self, inst: Air.Inst.Index) !void {
return self.finishAir(inst, .dead, .{ .none, .none, .none });
}
fn airIntCast(self: *Self, inst: Air.Inst.Index) !void {
const ty_op = self.air.instructions.items(.data)[inst].ty_op;
if (self.liveness.isUnused(inst))
return self.finishAir(inst, .dead, .{ ty_op.operand, .none, .none });
const operand_ty = self.air.typeOf(ty_op.operand);
const operand = try self.resolveInst(ty_op.operand);
const info_a = operand_ty.intInfo(self.target.*);
const info_b = self.air.typeOfIndex(inst).intInfo(self.target.*);
if (info_a.signedness != info_b.signedness)
return self.fail("TODO gen intcast sign safety in semantic analysis", .{});
if (info_a.bits == info_b.bits)
return self.finishAir(inst, operand, .{ ty_op.operand, .none, .none });
return self.fail("TODO implement intCast for {}", .{self.target.cpu.arch});
}
fn airIsErr(self: *Self, inst: Air.Inst.Index) !void {
const un_op = self.air.instructions.items(.data)[inst].un_op;
const result: MCValue = if (self.liveness.isUnused(inst)) .dead else result: {