1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// WebAssemblyInstrMemory.td-WebAssembly Memory codegen support -*- tablegen -*-
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief WebAssembly Memory operand code-gen constructs.
///
//===----------------------------------------------------------------------===//
/*
* TODO(jfb): Add the following.
*
* load_global: load the value of a given global variable
* store_global: store a given value to a given global variable
*/
// FIXME:
// - HasAddr64
// - WebAssemblyTargetLowering::isLegalAddressingMode
// - WebAssemblyTargetLowering having to do with atomics
// - Each has optional alignment and immediate byte offset.
// WebAssembly has i8/i16/i32/i64/f32/f64 memory types, but doesn't have i8/i16
// local types. These memory-only types instead zero- or sign-extend into local
// types when loading, and truncate when storing.
// Basic load.
def LOAD_I32_ : I<(outs Int32:$dst), (ins Int32:$addr),
[(set Int32:$dst, (load Int32:$addr))]>;
def LOAD_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (load Int32:$addr))]>;
def LOAD_F32_ : I<(outs Float32:$dst), (ins Int32:$addr),
[(set Float32:$dst, (load Int32:$addr))]>;
def LOAD_F64_ : I<(outs Float64:$dst), (ins Int32:$addr),
[(set Float64:$dst, (load Int32:$addr))]>;
// Extending load.
def LOAD_SX_I8_I32_ : I<(outs Int32:$dst), (ins Int32:$addr),
[(set Int32:$dst, (sextloadi8 Int32:$addr))]>;
def LOAD_ZX_I8_I32_ : I<(outs Int32:$dst), (ins Int32:$addr),
[(set Int32:$dst, (zextloadi8 Int32:$addr))]>;
def LOAD_SX_I16_I32_ : I<(outs Int32:$dst), (ins Int32:$addr),
[(set Int32:$dst, (sextloadi16 Int32:$addr))]>;
def LOAD_ZX_I16_I32_ : I<(outs Int32:$dst), (ins Int32:$addr),
[(set Int32:$dst, (zextloadi16 Int32:$addr))]>;
def LOAD_SX_I8_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (sextloadi8 Int32:$addr))]>;
def LOAD_ZX_I8_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (zextloadi8 Int32:$addr))]>;
def LOAD_SX_I16_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (sextloadi16 Int32:$addr))]>;
def LOAD_ZX_I16_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (zextloadi16 Int32:$addr))]>;
def LOAD_SX_I32_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (sextloadi32 Int32:$addr))]>;
def LOAD_ZX_I32_I64_ : I<(outs Int64:$dst), (ins Int32:$addr),
[(set Int64:$dst, (zextloadi32 Int32:$addr))]>;
// "Don't care" extending load become zero-extending load.
def : Pat<(i32 (extloadi8 Int32:$addr)), (LOAD_ZX_I8_I32_ $addr)>;
def : Pat<(i32 (extloadi16 Int32:$addr)), (LOAD_ZX_I16_I32_ $addr)>;
def : Pat<(i64 (extloadi8 Int32:$addr)), (LOAD_ZX_I8_I64_ $addr)>;
def : Pat<(i64 (extloadi16 Int32:$addr)), (LOAD_ZX_I16_I64_ $addr)>;
def : Pat<(i64 (extloadi32 Int32:$addr)), (LOAD_ZX_I32_I64_ $addr)>;
// Basic store.
// Note: WebAssembly inverts SelectionDAG's usual operand order.
def STORE_I32_ : I<(outs), (ins Int32:$addr, Int32:$val),
[(store Int32:$val, Int32:$addr)]>;
def STORE_I64_ : I<(outs), (ins Int32:$addr, Int64:$val),
[(store Int64:$val, Int32:$addr)]>;
def STORE_F32_ : I<(outs), (ins Int32:$addr, Float32:$val),
[(store Float32:$val, Int32:$addr)]>;
def STORE_F64_ : I<(outs), (ins Int32:$addr, Float64:$val),
[(store Float64:$val, Int32:$addr)]>;
// Truncating store.
def STORE_I8_I32 : I<(outs), (ins Int32:$addr, Int32:$val),
[(truncstorei8 Int32:$val, Int32:$addr)]>;
def STORE_I16_I32 : I<(outs), (ins Int32:$addr, Int32:$val),
[(truncstorei16 Int32:$val, Int32:$addr)]>;
def STORE_I8_I64 : I<(outs), (ins Int32:$addr, Int64:$val),
[(truncstorei8 Int64:$val, Int32:$addr)]>;
def STORE_I16_I64 : I<(outs), (ins Int32:$addr, Int64:$val),
[(truncstorei16 Int64:$val, Int32:$addr)]>;
def STORE_I32_I64 : I<(outs), (ins Int32:$addr, Int64:$val),
[(truncstorei32 Int64:$val, Int32:$addr)]>;
// Page size.
def page_size_I32 : I<(outs Int32:$dst), (ins),
[(set Int32:$dst, (int_wasm_page_size))]>,
Requires<[HasAddr32]>;
def page_size_I64 : I<(outs Int64:$dst), (ins),
[(set Int64:$dst, (int_wasm_page_size))]>,
Requires<[HasAddr64]>;
|
