1//===-- WebAssemblyInstrConv.td-WebAssembly Conversion 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 datatype conversions, truncations, reinterpretations,
12/// promotions, and demotions operand code-gen constructs.
13///
14//===----------------------------------------------------------------------===//
15
16let Defs = [ARGUMENTS] in {
17
18def I32_WRAP_I64 : I<(outs I32:$dst), (ins I64:$src),
19                      [(set I32:$dst, (trunc I64:$src))],
20                      "i32.wrap/i64\t$dst, $src", 0xa7>;
21
22def I64_EXTEND_S_I32 : I<(outs I64:$dst), (ins I32:$src),
23                          [(set I64:$dst, (sext I32:$src))],
24                          "i64.extend_s/i32\t$dst, $src", 0xac>;
25def I64_EXTEND_U_I32 : I<(outs I64:$dst), (ins I32:$src),
26                         [(set I64:$dst, (zext I32:$src))],
27                         "i64.extend_u/i32\t$dst, $src", 0xad>;
28
29let Predicates = [HasAtomics] in {
30def I32_EXTEND8_S_I32 : I<(outs I32:$dst), (ins I32:$src),
31                          [(set I32:$dst, (sext_inreg I32:$src, i8))],
32                          "i32.extend8_s\t$dst, $src", 0xc0>;
33def I32_EXTEND16_S_I32 : I<(outs I32:$dst), (ins I32:$src),
34                           [(set I32:$dst, (sext_inreg I32:$src, i16))],
35                           "i32.extend16_s\t$dst, $src", 0xc1>;
36def I64_EXTEND8_S_I64 : I<(outs I64:$dst), (ins I64:$src),
37                           [(set I64:$dst, (sext_inreg I64:$src, i8))],
38                           "i64.extend8_s\t$dst, $src", 0xc2>;
39def I64_EXTEND16_S_I64 : I<(outs I64:$dst), (ins I64:$src),
40                           [(set I64:$dst, (sext_inreg I64:$src, i16))],
41                           "i64.extend16_s\t$dst, $src", 0xc3>;
42def I64_EXTEND32_S_I64 : I<(outs I64:$dst), (ins I64:$src),
43                           [(set I64:$dst, (sext_inreg I64:$src, i32))],
44                           "i64.extend32_s\t$dst, $src", 0xc4>;
45} // Predicates = [HasAtomics]
46
47} // defs = [ARGUMENTS]
48
49// Expand a "don't care" extend into zero-extend (chosen over sign-extend
50// somewhat arbitrarily, although it favors popular hardware architectures
51// and is conceptually a simpler operation).
52def : Pat<(i64 (anyext I32:$src)), (I64_EXTEND_U_I32 I32:$src)>;
53
54let Defs = [ARGUMENTS] in {
55
56// Conversion from floating point to integer traps on overflow and invalid.
57let hasSideEffects = 1 in {
58def I32_TRUNC_S_F32 : I<(outs I32:$dst), (ins F32:$src),
59                        [(set I32:$dst, (fp_to_sint F32:$src))],
60                        "i32.trunc_s/f32\t$dst, $src", 0xa8>;
61def I32_TRUNC_U_F32 : I<(outs I32:$dst), (ins F32:$src),
62                        [(set I32:$dst, (fp_to_uint F32:$src))],
63                        "i32.trunc_u/f32\t$dst, $src", 0xa9>;
64def I64_TRUNC_S_F32 : I<(outs I64:$dst), (ins F32:$src),
65                        [(set I64:$dst, (fp_to_sint F32:$src))],
66                        "i64.trunc_s/f32\t$dst, $src", 0xae>;
67def I64_TRUNC_U_F32 : I<(outs I64:$dst), (ins F32:$src),
68                        [(set I64:$dst, (fp_to_uint F32:$src))],
69                        "i64.trunc_u/f32\t$dst, $src", 0xaf>;
70def I32_TRUNC_S_F64 : I<(outs I32:$dst), (ins F64:$src),
71                        [(set I32:$dst, (fp_to_sint F64:$src))],
72                        "i32.trunc_s/f64\t$dst, $src", 0xaa>;
73def I32_TRUNC_U_F64 : I<(outs I32:$dst), (ins F64:$src),
74                        [(set I32:$dst, (fp_to_uint F64:$src))],
75                        "i32.trunc_u/f64\t$dst, $src", 0xab>;
76def I64_TRUNC_S_F64 : I<(outs I64:$dst), (ins F64:$src),
77                        [(set I64:$dst, (fp_to_sint F64:$src))],
78                        "i64.trunc_s/f64\t$dst, $src", 0xb0>;
79def I64_TRUNC_U_F64 : I<(outs I64:$dst), (ins F64:$src),
80                        [(set I64:$dst, (fp_to_uint F64:$src))],
81                        "i64.trunc_u/f64\t$dst, $src", 0xb1>;
82} // hasSideEffects = 1
83
84def F32_CONVERT_S_I32 : I<(outs F32:$dst), (ins I32:$src),
85                          [(set F32:$dst, (sint_to_fp I32:$src))],
86                          "f32.convert_s/i32\t$dst, $src", 0xb2>;
87def F32_CONVERT_U_I32 : I<(outs F32:$dst), (ins I32:$src),
88                          [(set F32:$dst, (uint_to_fp I32:$src))],
89                          "f32.convert_u/i32\t$dst, $src", 0xb3>;
90def F64_CONVERT_S_I32 : I<(outs F64:$dst), (ins I32:$src),
91                          [(set F64:$dst, (sint_to_fp I32:$src))],
92                          "f64.convert_s/i32\t$dst, $src", 0xb7>;
93def F64_CONVERT_U_I32 : I<(outs F64:$dst), (ins I32:$src),
94                          [(set F64:$dst, (uint_to_fp I32:$src))],
95                          "f64.convert_u/i32\t$dst, $src", 0xb8>;
96def F32_CONVERT_S_I64 : I<(outs F32:$dst), (ins I64:$src),
97                          [(set F32:$dst, (sint_to_fp I64:$src))],
98                          "f32.convert_s/i64\t$dst, $src", 0xb4>;
99def F32_CONVERT_U_I64 : I<(outs F32:$dst), (ins I64:$src),
100                          [(set F32:$dst, (uint_to_fp I64:$src))],
101                          "f32.convert_u/i64\t$dst, $src", 0xb5>;
102def F64_CONVERT_S_I64 : I<(outs F64:$dst), (ins I64:$src),
103                          [(set F64:$dst, (sint_to_fp I64:$src))],
104                          "f64.convert_s/i64\t$dst, $src", 0xb9>;
105def F64_CONVERT_U_I64 : I<(outs F64:$dst), (ins I64:$src),
106                          [(set F64:$dst, (uint_to_fp I64:$src))],
107                          "f64.convert_u/i64\t$dst, $src", 0xba>;
108
109def F64_PROMOTE_F32 : I<(outs F64:$dst), (ins F32:$src),
110                        [(set F64:$dst, (fpextend F32:$src))],
111                        "f64.promote/f32\t$dst, $src", 0xbb>;
112def F32_DEMOTE_F64 : I<(outs F32:$dst), (ins F64:$src),
113                       [(set F32:$dst, (fpround F64:$src))],
114                       "f32.demote/f64\t$dst, $src", 0xb6>;
115
116def I32_REINTERPRET_F32 : I<(outs I32:$dst), (ins F32:$src),
117                            [(set I32:$dst, (bitconvert F32:$src))],
118                            "i32.reinterpret/f32\t$dst, $src", 0xbc>;
119def F32_REINTERPRET_I32 : I<(outs F32:$dst), (ins I32:$src),
120                            [(set F32:$dst, (bitconvert I32:$src))],
121                            "f32.reinterpret/i32\t$dst, $src", 0xbe>;
122def I64_REINTERPRET_F64 : I<(outs I64:$dst), (ins F64:$src),
123                            [(set I64:$dst, (bitconvert F64:$src))],
124                            "i64.reinterpret/f64\t$dst, $src", 0xbd>;
125def F64_REINTERPRET_I64 : I<(outs F64:$dst), (ins I64:$src),
126                            [(set F64:$dst, (bitconvert I64:$src))],
127                            "f64.reinterpret/i64\t$dst, $src", 0xbf>;
128
129} // Defs = [ARGUMENTS]
130