1 ; RUN: llc < %s --mtriple=wasm32-unknown-unknown -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers | FileCheck -DPTR=32 %s
2 ; RUN: llc < %s --mtriple=wasm64-unknown-unknown -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers | FileCheck -DPTR=64 %s
4 declare void @somefunc(i32*)
6 ; CHECK-LABEL: underalign:
7 ; CHECK: global.get $push[[L1:.+]]=, __stack_pointer{{$}}
8 ; CHECK-NEXT: i[[PTR]].const $push[[L2:.+]]=, 16
9 ; CHECK-NEXT: i[[PTR]].sub $push[[L10:.+]]=, $pop[[L1]], $pop[[L2]]
10 ; CHECK-NEXT: local.tee $push{{.+}}=, [[SP:.+]], $pop[[L10]]
12 ; CHECK: local.get $push[[L3:.+]]=, [[SP]]{{$}}
13 ; CHECK: i[[PTR]].add $push[[underaligned:.+]]=, $pop[[L3]], $pop{{.+}}
14 ; CHECK-NEXT: call somefunc, $pop[[underaligned]]
16 ; CHECK: local.get $push[[M4:.+]]=, [[SP]]{{$}}
17 ; CHECK: i[[PTR]].add $push[[L5:.+]]=, $pop[[M4]], $pop{{.+}}
18 ; CHECK-NEXT: global.set __stack_pointer, $pop[[L5]]
19 define void @underalign() {
21 %underaligned = alloca i32, align 8
22 call void @somefunc(i32* %underaligned)
26 ; CHECK-LABEL: overalign:
27 ; CHECK: global.get $push[[L10:.+]]=, __stack_pointer{{$}}
28 ; CHECK-NEXT: local.tee $push[[L9:.+]]=, [[BP:.+]], $pop[[L10]]
29 ; CHECK-NEXT: i[[PTR]].const $push[[L2:.+]]=, 32
30 ; CHECK-NEXT: i[[PTR]].sub $push[[L8:.+]]=, $pop[[L9]], $pop[[L2]]
31 ; CHECK-NEXT: i[[PTR]].const $push[[L3:.+]]=, -32
32 ; CHECK-NEXT: i[[PTR]].and $push[[L7:.+]]=, $pop[[L8]], $pop[[L3]]
33 ; CHECK-NEXT: local.tee $push{{.+}}=, [[SP:.+]], $pop[[L7]]
35 ; CHECK: local.get $push[[M5:.+]]=, [[SP]]{{$}}
36 ; CHECK: call somefunc, $pop[[M5]]{{$}}
38 ; CHECK: local.get $push[[M6:.+]]=, [[BP]]{{$}}
39 ; CHECK-NEXT: global.set __stack_pointer, $pop[[M6]]
40 define void @overalign() {
42 %overaligned = alloca i32, align 32
43 call void @somefunc(i32* %overaligned)
47 ; CHECK-LABEL: over_and_normal_align:
48 ; CHECK: global.get $push[[L14:.+]]=, __stack_pointer{{$}}
49 ; CHECK-NEXT: local.tee $push[[L13:.+]]=, [[BP:.+]], $pop[[L14]]
50 ; CHECK: i[[PTR]].sub $push[[L12:.+]]=, $pop[[L13]], $pop{{.+}}
51 ; CHECK: i[[PTR]].and $push[[L11:.+]]=, $pop[[L12]], $pop{{.+}}
52 ; CHECK-NEXT: local.tee $push{{.+}}=, [[SP:.+]], $pop[[L11]]
54 ; CHECK: local.get $push[[M6:.+]]=, [[SP]]{{$}}
55 ; CHECK: i[[PTR]].add $push[[L6:.+]]=, $pop[[M6]], $pop{{.+}}
56 ; CHECK-NEXT: call somefunc, $pop[[L6]]
57 ; CHECK: local.get $push[[M7:.+]]=, [[SP]]{{$}}
58 ; CHECK: i[[PTR]].add $push[[L8:.+]]=, $pop[[M7]], $pop{{.+}}
59 ; CHECK-NEXT: call somefunc, $pop[[L8]]
61 ; CHECK: local.get $push[[L6:.+]]=, [[BP]]{{$}}
62 ; CHECK-NEXT: global.set __stack_pointer, $pop[[L6]]
63 define void @over_and_normal_align() {
65 %over = alloca i32, align 32
67 call void @somefunc(i32* %over)
68 call void @somefunc(i32* %normal)
72 ; CHECK-LABEL: dynamic_overalign:
73 ; CHECK: global.get $push[[L18:.+]]=, __stack_pointer{{$}}
74 ; CHECK-NEXT: local.tee $push[[L17:.+]]=, [[SP:.+]], $pop[[L18]]
75 ; CHECK-NEXT: local.set [[BP:.+]], $pop[[L17]]
76 ; CHECK: local.tee $push{{.+}}=, [[SP_2:.+]], $pop{{.+}}
78 ; CHECK: local.get $push[[M8:.+]]=, [[SP_2]]{{$}}
79 ; CHECK: call somefunc, $pop[[M8]]
81 ; CHECK: local.get $push[[M9:.+]]=, [[BP]]{{$}}
82 ; CHECK-NEXT: global.set __stack_pointer, $pop[[M9]]
83 define void @dynamic_overalign(i32 %num) {
85 %dynamic = alloca i32, i32 %num, align 32
86 call void @somefunc(i32* %dynamic)
90 ; CHECK-LABEL: overalign_and_dynamic:
91 ; CHECK: global.get $push[[L21:.+]]=, __stack_pointer{{$}}
92 ; CHECK-NEXT: local.tee $push[[L20:.+]]=, [[BP:.+]], $pop[[L21]]
93 ; CHECK: i[[PTR]].sub $push[[L19:.+]]=, $pop[[L20]], $pop{{.+}}
94 ; CHECK: i[[PTR]].and $push[[L18:.+]]=, $pop[[L19]], $pop{{.+}}
95 ; CHECK: local.tee $push{{.+}}=, [[FP:.+]], $pop[[L18]]
96 ; CHECK: local.get $push[[M10:.+]]=, [[FP]]{{$}}
97 ; CHECK: i[[PTR]].sub $push[[L16:.+]]=, $pop[[M10]], $pop{{.+}}
98 ; CHECK-NEXT: local.tee $push{{.+}}=, [[SP:.+]], $pop[[L16]]
100 ; CHECK: local.get $push[[over:.+]]=, [[FP]]
101 ; CHECK-NEXT: call somefunc, $pop[[over]]
102 ; CHECK: local.get $push[[another:.+]]=, [[SP]]
103 ; CHECK-NEXT: call somefunc, $pop[[another]]
105 ; CHECK: local.get $push[[M11:.+]]=, [[BP]]{{$}}
106 ; CHECK-NEXT: global.set __stack_pointer, $pop[[M11]]
107 define void @overalign_and_dynamic(i32 %num) {
109 %over = alloca i32, align 32
110 %dynamic = alloca i32, i32 %num
111 call void @somefunc(i32* %over)
112 call void @somefunc(i32* %dynamic)
116 ; CHECK-LABEL: overalign_static_and_dynamic:
117 ; CHECK: global.get $push[[L26:.+]]=, __stack_pointer{{$}}
118 ; CHECK-NEXT: local.tee $push[[L25:.+]]=, [[BP:.+]], $pop[[L26]]
119 ; CHECK: i[[PTR]].sub $push[[L24:.+]]=, $pop[[L25]], $pop{{.+}}
120 ; CHECK: i[[PTR]].and $push[[L23:.+]]=, $pop[[L24]], $pop{{.+}}
121 ; CHECK: local.tee $push{{.+}}=, [[FP:.+]], $pop[[L23]]
122 ; CHECK: local.get $push[[M12:.+]]=, [[FP]]{{$}}
123 ; CHECK: i[[PTR]].sub $push[[L21:.+]]=, $pop[[M12]], $pop{{.+}}
124 ; CHECK-NEXT: local.tee $push{{.+}}=, [[SP:.+]], $pop[[L21]]
126 ; CHECK: local.get $push[[L19:.+]]=, [[FP]]
127 ; CHECK: local.tee $push[[L18:.+]]=, [[FP_2:.+]], $pop[[L19]]
128 ; CHECK: i[[PTR]].add $push[[over:.+]]=, $pop[[L18]], $pop{{.+}}
129 ; CHECK-NEXT: call somefunc, $pop[[over]]
130 ; CHECK: local.get $push[[M12:.+]]=, [[SP]]
131 ; CHECK: call somefunc, $pop[[M12]]
132 ; CHECK: local.get $push[[M13:.+]]=, [[FP_2]]
133 ; CHECK: i[[PTR]].add $push[[static:.+]]=, $pop[[M13]], $pop{{.+}}
134 ; CHECK-NEXT: call somefunc, $pop[[static]]
136 ; CHECK: local.get $push[[M14:.+]]=, [[BP]]{{$}}
137 ; CHECK-NEXT: global.set __stack_pointer, $pop[[M14]]
138 define void @overalign_static_and_dynamic(i32 %num) {
140 %over = alloca i32, align 32
141 %dynamic = alloca i32, i32 %num
143 call void @somefunc(i32* %over)
144 call void @somefunc(i32* %dynamic)
145 call void @somefunc(i32* %static)