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:$src)>;
53
54let Defs = [ARGUMENTS] in {
55
56// Conversion from floating point to integer instructions which don't trap on
57// overflow or invalid.
58def I32_TRUNC_S_SAT_F32 : I<(outs I32:$dst), (ins F32:$src),
59                            [(set I32:$dst, (fp_to_sint F32:$src))],
60                            "i32.trunc_s:sat/f32\t$dst, $src", 0xfc00>,
61                            Requires<[HasNontrappingFPToInt]>;
62def I32_TRUNC_U_SAT_F32 : I<(outs I32:$dst), (ins F32:$src),
63                            [(set I32:$dst, (fp_to_uint F32:$src))],
64                            "i32.trunc_u:sat/f32\t$dst, $src", 0xfc01>,
65                            Requires<[HasNontrappingFPToInt]>;
66def I64_TRUNC_S_SAT_F32 : I<(outs I64:$dst), (ins F32:$src),
67                            [(set I64:$dst, (fp_to_sint F32:$src))],
68                            "i64.trunc_s:sat/f32\t$dst, $src", 0xfc04>,
69                            Requires<[HasNontrappingFPToInt]>;
70def I64_TRUNC_U_SAT_F32 : I<(outs I64:$dst), (ins F32:$src),
71                            [(set I64:$dst, (fp_to_uint F32:$src))],
72                            "i64.trunc_u:sat/f32\t$dst, $src", 0xfc05>,
73                            Requires<[HasNontrappingFPToInt]>;
74def I32_TRUNC_S_SAT_F64 : I<(outs I32:$dst), (ins F64:$src),
75                            [(set I32:$dst, (fp_to_sint F64:$src))],
76                            "i32.trunc_s:sat/f64\t$dst, $src", 0xfc02>,
77                            Requires<[HasNontrappingFPToInt]>;
78def I32_TRUNC_U_SAT_F64 : I<(outs I32:$dst), (ins F64:$src),
79                            [(set I32:$dst, (fp_to_uint F64:$src))],
80                            "i32.trunc_u:sat/f64\t$dst, $src", 0xfc03>,
81                            Requires<[HasNontrappingFPToInt]>;
82def I64_TRUNC_S_SAT_F64 : I<(outs I64:$dst), (ins F64:$src),
83                            [(set I64:$dst, (fp_to_sint F64:$src))],
84                            "i64.trunc_s:sat/f64\t$dst, $src", 0xfc06>,
85                            Requires<[HasNontrappingFPToInt]>;
86def I64_TRUNC_U_SAT_F64 : I<(outs I64:$dst), (ins F64:$src),
87                            [(set I64:$dst, (fp_to_uint F64:$src))],
88                            "i64.trunc_u:sat/f64\t$dst, $src", 0xfc07>,
89                            Requires<[HasNontrappingFPToInt]>;
90
91// Conversion from floating point to integer pseudo-instructions which don't
92// trap on overflow or invalid.
93let usesCustomInserter = 1, isCodeGenOnly = 1 in {
94def FP_TO_SINT_I32_F32 : I<(outs I32:$dst), (ins F32:$src),
95                        [(set I32:$dst, (fp_to_sint F32:$src))], "", 0>,
96                        Requires<[NotHasNontrappingFPToInt]>;
97def FP_TO_UINT_I32_F32 : I<(outs I32:$dst), (ins F32:$src),
98                        [(set I32:$dst, (fp_to_uint F32:$src))], "", 0>,
99                        Requires<[NotHasNontrappingFPToInt]>;
100def FP_TO_SINT_I64_F32 : I<(outs I64:$dst), (ins F32:$src),
101                        [(set I64:$dst, (fp_to_sint F32:$src))], "", 0>,
102                        Requires<[NotHasNontrappingFPToInt]>;
103def FP_TO_UINT_I64_F32 : I<(outs I64:$dst), (ins F32:$src),
104                        [(set I64:$dst, (fp_to_uint F32:$src))], "", 0>,
105                        Requires<[NotHasNontrappingFPToInt]>;
106def FP_TO_SINT_I32_F64 : I<(outs I32:$dst), (ins F64:$src),
107                        [(set I32:$dst, (fp_to_sint F64:$src))], "", 0>,
108                        Requires<[NotHasNontrappingFPToInt]>;
109def FP_TO_UINT_I32_F64 : I<(outs I32:$dst), (ins F64:$src),
110                        [(set I32:$dst, (fp_to_uint F64:$src))], "", 0>,
111                        Requires<[NotHasNontrappingFPToInt]>;
112def FP_TO_SINT_I64_F64 : I<(outs I64:$dst), (ins F64:$src),
113                        [(set I64:$dst, (fp_to_sint F64:$src))], "", 0>,
114                        Requires<[NotHasNontrappingFPToInt]>;
115def FP_TO_UINT_I64_F64 : I<(outs I64:$dst), (ins F64:$src),
116                        [(set I64:$dst, (fp_to_uint F64:$src))], "", 0>,
117                        Requires<[NotHasNontrappingFPToInt]>;
118} // usesCustomInserter, isCodeGenOnly = 1
119
120// Conversion from floating point to integer traps on overflow and invalid.
121let hasSideEffects = 1 in {
122def I32_TRUNC_S_F32 : I<(outs I32:$dst), (ins F32:$src),
123                        [], "i32.trunc_s/f32\t$dst, $src", 0xa8>;
124def I32_TRUNC_U_F32 : I<(outs I32:$dst), (ins F32:$src),
125                        [], "i32.trunc_u/f32\t$dst, $src", 0xa9>;
126def I64_TRUNC_S_F32 : I<(outs I64:$dst), (ins F32:$src),
127                        [], "i64.trunc_s/f32\t$dst, $src", 0xae>;
128def I64_TRUNC_U_F32 : I<(outs I64:$dst), (ins F32:$src),
129                        [], "i64.trunc_u/f32\t$dst, $src", 0xaf>;
130def I32_TRUNC_S_F64 : I<(outs I32:$dst), (ins F64:$src),
131                        [], "i32.trunc_s/f64\t$dst, $src", 0xaa>;
132def I32_TRUNC_U_F64 : I<(outs I32:$dst), (ins F64:$src),
133                        [], "i32.trunc_u/f64\t$dst, $src", 0xab>;
134def I64_TRUNC_S_F64 : I<(outs I64:$dst), (ins F64:$src),
135                        [], "i64.trunc_s/f64\t$dst, $src", 0xb0>;
136def I64_TRUNC_U_F64 : I<(outs I64:$dst), (ins F64:$src),
137                        [], "i64.trunc_u/f64\t$dst, $src", 0xb1>;
138} // hasSideEffects = 1
139
140def F32_CONVERT_S_I32 : I<(outs F32:$dst), (ins I32:$src),
141                          [(set F32:$dst, (sint_to_fp I32:$src))],
142                          "f32.convert_s/i32\t$dst, $src", 0xb2>;
143def F32_CONVERT_U_I32 : I<(outs F32:$dst), (ins I32:$src),
144                          [(set F32:$dst, (uint_to_fp I32:$src))],
145                          "f32.convert_u/i32\t$dst, $src", 0xb3>;
146def F64_CONVERT_S_I32 : I<(outs F64:$dst), (ins I32:$src),
147                          [(set F64:$dst, (sint_to_fp I32:$src))],
148                          "f64.convert_s/i32\t$dst, $src", 0xb7>;
149def F64_CONVERT_U_I32 : I<(outs F64:$dst), (ins I32:$src),
150                          [(set F64:$dst, (uint_to_fp I32:$src))],
151                          "f64.convert_u/i32\t$dst, $src", 0xb8>;
152def F32_CONVERT_S_I64 : I<(outs F32:$dst), (ins I64:$src),
153                          [(set F32:$dst, (sint_to_fp I64:$src))],
154                          "f32.convert_s/i64\t$dst, $src", 0xb4>;
155def F32_CONVERT_U_I64 : I<(outs F32:$dst), (ins I64:$src),
156                          [(set F32:$dst, (uint_to_fp I64:$src))],
157                          "f32.convert_u/i64\t$dst, $src", 0xb5>;
158def F64_CONVERT_S_I64 : I<(outs F64:$dst), (ins I64:$src),
159                          [(set F64:$dst, (sint_to_fp I64:$src))],
160                          "f64.convert_s/i64\t$dst, $src", 0xb9>;
161def F64_CONVERT_U_I64 : I<(outs F64:$dst), (ins I64:$src),
162                          [(set F64:$dst, (uint_to_fp I64:$src))],
163                          "f64.convert_u/i64\t$dst, $src", 0xba>;
164
165def F64_PROMOTE_F32 : I<(outs F64:$dst), (ins F32:$src),
166                        [(set F64:$dst, (fpextend F32:$src))],
167                        "f64.promote/f32\t$dst, $src", 0xbb>;
168def F32_DEMOTE_F64 : I<(outs F32:$dst), (ins F64:$src),
169                       [(set F32:$dst, (fpround F64:$src))],
170                       "f32.demote/f64\t$dst, $src", 0xb6>;
171
172def I32_REINTERPRET_F32 : I<(outs I32:$dst), (ins F32:$src),
173                            [(set I32:$dst, (bitconvert F32:$src))],
174                            "i32.reinterpret/f32\t$dst, $src", 0xbc>;
175def F32_REINTERPRET_I32 : I<(outs F32:$dst), (ins I32:$src),
176                            [(set F32:$dst, (bitconvert I32:$src))],
177                            "f32.reinterpret/i32\t$dst, $src", 0xbe>;
178def I64_REINTERPRET_F64 : I<(outs I64:$dst), (ins F64:$src),
179                            [(set I64:$dst, (bitconvert F64:$src))],
180                            "i64.reinterpret/f64\t$dst, $src", 0xbd>;
181def F64_REINTERPRET_I64 : I<(outs F64:$dst), (ins I64:$src),
182                            [(set F64:$dst, (bitconvert I64:$src))],
183                            "f64.reinterpret/i64\t$dst, $src", 0xbf>;
184
185} // Defs = [ARGUMENTS]
186