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stage2: sparc64: Implement airWrapOptional

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Koakuma 2022-07-08 19:56:34 +07:00 committed by Andrew Kelley
parent b6307144c0
commit f01867f78e
1 changed files with 15 additions and 1 deletions
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16
src/arch/sparc64/CodeGen.zig
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@ -677,7 +677,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
.err_return_trace => @panic("TODO try self.airErrReturnTrace(inst)"),
.set_err_return_trace => @panic("TODO try self.airSetErrReturnTrace(inst)"),
.wrap_optional => @panic("TODO try self.airWrapOptional(inst)"),
.wrap_optional => try self.airWrapOptional(inst),
.wrap_errunion_payload => @panic("TODO try self.airWrapErrUnionPayload(inst)"),
.wrap_errunion_err => try self.airWrapErrUnionErr(inst),
@ -2175,6 +2175,20 @@ fn airWrapErrUnionErr(self: *Self, inst: Air.Inst.Index) !void {
return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
}
fn airWrapOptional(self: *Self, inst: Air.Inst.Index) !void {
const ty_op = self.air.instructions.items(.data)[inst].ty_op;
const result: MCValue = if (self.liveness.isUnused(inst)) .dead else result: {
const optional_ty = self.air.typeOfIndex(inst);
// Optional with a zero-bit payload type is just a boolean true
if (optional_ty.abiSize(self.target.*) == 1)
break :result MCValue{ .immediate = 1 };
return self.fail("TODO implement wrap optional for {}", .{self.target.cpu.arch});
};
return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
}
// Common helper functions
/// Adds a Type to the .debug_info at the current position. The bytes will be populated later,