1//===- WebAssemblyInstrCall.td-WebAssembly Call codegen support -*- tablegen -*-
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9///
10/// \file
11/// \brief WebAssembly Call operand code-gen constructs.
12///
13//===----------------------------------------------------------------------===//
14
15// The call sequence start/end LLVM-isms isn't useful to WebAssembly since it's
16// a virtual ISA.
17let isCodeGenOnly = 1 in {
18def : I<(outs), (ins i64imm:$amt),
19        [(WebAssemblycallseq_start timm:$amt)]>;
20def : I<(outs), (ins i64imm:$amt1, i64imm:$amt2),
21        [(WebAssemblycallseq_end timm:$amt1, timm:$amt2)]>;
22} // isCodeGenOnly = 1
23
24multiclass CALL<WebAssemblyRegClass vt> {
25  def CALL_#vt : I<(outs vt:$dst), (ins Int32:$callee, variable_ops),
26                   [(set vt:$dst, (WebAssemblycall1 Int32:$callee))]>;
27}
28let Uses = [SP32, SP64], isCall = 1 in {
29  defm : CALL<Int32>;
30  defm : CALL<Int64>;
31  defm : CALL<Float32>;
32  defm : CALL<Float64>;
33
34  def CALL_VOID : I<(outs), (ins Int32:$callee, variable_ops),
35                    [(WebAssemblycall0 Int32:$callee)]>;
36} // Uses = [SP32,SP64], isCall = 1
37
38/*
39 * TODO(jfb): Add the following.
40 *
41 * call_direct: call function directly
42 * call_indirect: call function indirectly
43 * addressof: obtain a function pointer value for a given function
44 */
45