aboutsummaryrefslogtreecommitdiff
path: root/llvm/test/CodeGen/WebAssembly/offset-fastisel.ll
blob: b896f8fde247e715d005212f1d164f289de60b6c (plain)
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -wasm-disable-explicit-locals -wasm-keep-registers -fast-isel -fast-isel-abort=1 | FileCheck %s

; TODO: Merge this with offset.ll when fast-isel matches better.

target triple = "wasm32-unknown-unknown"

define void @store_i8_with_variable_gep_offset(ptr %p, i32 %idx) {
; CHECK-LABEL: store_i8_with_variable_gep_offset:
; CHECK:         .functype store_i8_with_variable_gep_offset (i32, i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.add $push1=, $0, $1
; CHECK-NEXT:    i32.const $push0=, 0
; CHECK-NEXT:    i32.store8 0($pop1), $pop0
; CHECK-NEXT:    # fallthrough-return
  %s = getelementptr inbounds i8, ptr %p, i32 %idx
  store i8 0, ptr %s
  ret void
}

define hidden void @store_i8_with_array_alloca_gep(i32 %idx) {
; CHECK-LABEL: store_i8_with_array_alloca_gep:
; CHECK:         .functype store_i8_with_array_alloca_gep (i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    global.get $push3=, __stack_pointer
; CHECK-NEXT:    i32.const $push4=, 32
; CHECK-NEXT:    i32.sub $push5=, $pop3, $pop4
; CHECK-NEXT:    local.copy $push1=, $pop5
; CHECK-NEXT:    i32.add $push2=, $pop1, $0
; CHECK-NEXT:    i32.const $push0=, 0
; CHECK-NEXT:    i32.store8 0($pop2), $pop0
; CHECK-NEXT:    # fallthrough-return
  %A = alloca [30 x i8], align 16
  %s = getelementptr inbounds [30 x i8], ptr %A, i32 0, i32 %idx
  store i8 0, ptr %s, align 1
  ret void
}

define void @store_i32_with_unfolded_gep_offset(ptr %p) {
; CHECK-LABEL: store_i32_with_unfolded_gep_offset:
; CHECK:         .functype store_i32_with_unfolded_gep_offset (i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.const $push1=, 24
; CHECK-NEXT:    i32.add $push2=, $0, $pop1
; CHECK-NEXT:    i32.const $push0=, 0
; CHECK-NEXT:    i32.store 0($pop2), $pop0
; CHECK-NEXT:    # fallthrough-return
  %s = getelementptr i32, ptr %p, i32 6
  store i32 0, ptr %s
  ret void
}

define void @store_i32_with_folded_gep_offset(ptr %p) {
; CHECK-LABEL: store_i32_with_folded_gep_offset:
; CHECK:         .functype store_i32_with_folded_gep_offset (i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.const $push0=, 0
; CHECK-NEXT:    i32.store 24($0), $pop0
; CHECK-NEXT:    # fallthrough-return
  %s = getelementptr inbounds i32, ptr %p, i32 6
  store i32 0, ptr %s
  ret void
}

define i32 @load_i32_with_folded_gep_offset(ptr %p) {
; CHECK-LABEL: load_i32_with_folded_gep_offset:
; CHECK:         .functype load_i32_with_folded_gep_offset (i32) -> (i32)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.load $push0=, 24($0)
; CHECK-NEXT:    # fallthrough-return
  %s = getelementptr inbounds i32, ptr %p, i32 6
  %t = load i32, ptr %s
  ret i32 %t
}

define void @store_i64_with_unfolded_gep_offset(ptr %p) {
; CHECK-LABEL: store_i64_with_unfolded_gep_offset:
; CHECK:         .functype store_i64_with_unfolded_gep_offset (i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.const $push1=, 24
; CHECK-NEXT:    i32.add $push2=, $0, $pop1
; CHECK-NEXT:    i64.const $push0=, 0
; CHECK-NEXT:    i64.store 0($pop2), $pop0
; CHECK-NEXT:    # fallthrough-return
  %s = getelementptr i64, ptr %p, i32 3
  store i64 0, ptr %s
  ret void
}

define void @store_i8_with_folded_gep_offset(ptr %p) {
; CHECK-LABEL: store_i8_with_folded_gep_offset:
; CHECK:         .functype store_i8_with_folded_gep_offset (i32) -> ()
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.const $push0=, 0
; CHECK-NEXT:    i32.store8 24($0), $pop0
; CHECK-NEXT:    # fallthrough-return
  %s = getelementptr inbounds i8, ptr %p, i32 24
  store i8 0, ptr %s
  ret void
}

define i32 @load_i8_u_with_folded_offset(ptr %p) {
; CHECK-LABEL: load_i8_u_with_folded_offset:
; CHECK:         .functype load_i8_u_with_folded_offset (i32) -> (i32)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.load8_u $push2=, 24($0)
; CHECK-NEXT:    i32.const $push0=, 255
; CHECK-NEXT:    i32.and $push1=, $pop2, $pop0
; CHECK-NEXT:    # fallthrough-return
  %q = ptrtoint ptr %p to i32
  %r = add nuw i32 %q, 24
  %s = inttoptr i32 %r to ptr
  %t = load i8, ptr %s
  %u = zext i8 %t to i32
  ret i32 %u
}

; TODO: this should be load8_s, need to fold sign-/zero-extend in fast-isel
define i32 @load_i8_s_with_folded_offset(ptr %p) {
; CHECK-LABEL: load_i8_s_with_folded_offset:
; CHECK:         .functype load_i8_s_with_folded_offset (i32) -> (i32)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    i32.load8_u $push3=, 24($0)
; CHECK-NEXT:    i32.const $push0=, 24
; CHECK-NEXT:    i32.shl $push1=, $pop3, $pop0
; CHECK-NEXT:    i32.const $push4=, 24
; CHECK-NEXT:    i32.shr_s $push2=, $pop1, $pop4
; CHECK-NEXT:    # fallthrough-return
  %q = ptrtoint ptr %p to i32
  %r = add nuw i32 %q, 24
  %s = inttoptr i32 %r to ptr
  %t = load i8, ptr %s
  %u = sext i8 %t to i32
  ret i32 %u
}