WebAssemblyInstrCall.td revision 296417 
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// TODO: addr64: These currently assume the callee address is 32-bit.
16
17let Defs = [ARGUMENTS] in {
18
19// Call sequence markers. These have an immediate which represents the amount of
20// stack space to allocate or free, which is used for varargs lowering.
21let Uses = [SP32, SP64], Defs = [SP32, SP64], isCodeGenOnly = 1 in {
22def ADJCALLSTACKDOWN : I<(outs), (ins i32imm:$amt),
23                         [(WebAssemblycallseq_start timm:$amt)]>;
24def ADJCALLSTACKUP : I<(outs), (ins i32imm:$amt, i32imm:$amt2),
25                       [(WebAssemblycallseq_end timm:$amt, timm:$amt2)]>;
26} // isCodeGenOnly = 1
27
28multiclass CALL<WebAssemblyRegClass vt, string prefix> {
29  def CALL_#vt : I<(outs vt:$dst), (ins i32imm:$callee, variable_ops),
30                   [(set vt:$dst, (WebAssemblycall1 (i32 imm:$callee)))],
31                   !strconcat(prefix, "call\t$dst, $callee")>;
32  def CALL_INDIRECT_#vt : I<(outs vt:$dst), (ins I32:$callee, variable_ops),
33                            [(set vt:$dst, (WebAssemblycall1 I32:$callee))],
34                            !strconcat(prefix, "call_indirect\t$dst, $callee")>;
35}
36let Uses = [SP32, SP64], isCall = 1 in {
37  defm : CALL<I32, "i32.">;
38  defm : CALL<I64, "i64.">;
39  defm : CALL<F32, "f32.">;
40  defm : CALL<F64, "f64.">;
41
42  def CALL_VOID : I<(outs), (ins i32imm:$callee, variable_ops),
43                    [(WebAssemblycall0 (i32 imm:$callee))],
44                    "call    \t$callee">;
45  def CALL_INDIRECT_VOID : I<(outs), (ins I32:$callee, variable_ops),
46                             [(WebAssemblycall0 I32:$callee)],
47                             "call_indirect\t$callee">;
48} // Uses = [SP32,SP64], isCall = 1
49
50} // Defs = [ARGUMENTS]
51
52// Patterns for matching a direct call to a global address.
53def : Pat<(i32 (WebAssemblycall1 (WebAssemblywrapper tglobaladdr:$callee))),
54          (CALL_I32 tglobaladdr:$callee)>;
55def : Pat<(i64 (WebAssemblycall1 (WebAssemblywrapper tglobaladdr:$callee))),
56          (CALL_I64 tglobaladdr:$callee)>;
57def : Pat<(f32 (WebAssemblycall1 (WebAssemblywrapper tglobaladdr:$callee))),
58          (CALL_F32 tglobaladdr:$callee)>;
59def : Pat<(f64 (WebAssemblycall1 (WebAssemblywrapper tglobaladdr:$callee))),
60          (CALL_F64 tglobaladdr:$callee)>;
61def : Pat<(WebAssemblycall0 (WebAssemblywrapper tglobaladdr:$callee)),
62          (CALL_VOID tglobaladdr:$callee)>;
63
64// Patterns for matching a direct call to an external symbol.
65def : Pat<(i32 (WebAssemblycall1 (WebAssemblywrapper texternalsym:$callee))),
66          (CALL_I32 texternalsym:$callee)>;
67def : Pat<(i64 (WebAssemblycall1 (WebAssemblywrapper texternalsym:$callee))),
68          (CALL_I64 texternalsym:$callee)>;
69def : Pat<(f32 (WebAssemblycall1 (WebAssemblywrapper texternalsym:$callee))),
70          (CALL_F32 texternalsym:$callee)>;
71def : Pat<(f64 (WebAssemblycall1 (WebAssemblywrapper texternalsym:$callee))),
72          (CALL_F64 texternalsym:$callee)>;
73def : Pat<(WebAssemblycall0 (WebAssemblywrapper texternalsym:$callee)),
74          (CALL_VOID texternalsym:$callee)>;
75