tiny.choir.backends.wasm.emission.function.instruction.call

1const wasm = @import("../../../root.zig");2const ir = @import("../../../../../core/root.zig");3const dialects = @import("../../../../../dialects/root.zig");4const emission = @import("../../root.zig");5const instruction = @import("root.zig");67const FuncDialect = dialects.FuncDialect;89pub fn write(10    comptime Out: type,11    writer: *instruction.Writer(Out),12    operation: *ir.Operation,13) emission.Error!void {14    const call = FuncDialect.CallOp{ .op = operation };15    const callee = call.getCallee() orelse return error.CodeGenFailed;16    const function_index = writer.plan.functionIndex(callee) orelse17        return error.FunctionNotFound;18    for (call.getOperands()) |operand| try writer.writeValue(operand);19    try writer.out.writeByte(0x10);20    try wasm.binary.writeUleb(writer.out, function_index);21    var index = call.getNumResults();22    while (index > 0) {23        index -= 1;24        const result = call.getResult(index) orelse return error.CodeGenFailed;25        try writer.writeLocalSet(try writer.localFor(result));26    }27}

1pub const call = @import("call.zig");