1; RUN: llc < %s -asm-verbose=false -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s -check-prefixes=NON-PIC,CHECK
2
3target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
4target triple = "wasm32-unknown-emscripten"
5
6@hidden_global         = external hidden global i32
7@hidden_global_array   = external hidden global [10 x i32]
8@external_global       = external dso_local global i32
9@external_global_array = external dso_local global [10 x i32]
10
11declare i32 @foo();
12
13; For hidden symbols PIC code needs to offset all loads and stores
14; by the value of the __memory_base global
15
16define i32 @load_hidden_global() {
17; CHECK-LABEL: load_hidden_global:
18; NON-PIC:         i32.const $push0=, 0{{$}}
19; NON-PIC-NEXT:    i32.load $push1=, hidden_global($pop0){{$}}
20; CHECK-NEXT:    end_function
21
22  %1 = load i32, i32* @hidden_global
23  ret i32 %1
24}
25
26define i32 @load_hidden_global_offset() {
27; CHECK-LABEL: load_hidden_global_offset:
28; NON-PIC:     i32.const $push0=, 0{{$}}
29; NON-PIC-NEXT:i32.load  $push1=, hidden_global_array+20($pop0){{$}}
30; CHECK-NEXT:  end_function
31
32  %1 = getelementptr [10 x i32], [10 x i32]* @hidden_global_array, i32 0, i32 5
33  %2 = load i32, i32* %1
34  ret i32 %2
35}
36
37; Store to a hidden global
38
39define void @store_hidden_global(i32 %n) {
40; CHECK-LABEL: store_hidden_global:
41; NON-PIC:       i32.const $push0=, 0{{$}}
42; NON-PIC-NEXT:  i32.store hidden_global($pop0), $0{{$}}
43; CHECK-NEXT:    end_function
44
45  store i32 %n, i32* @hidden_global
46  ret void
47}
48
49define void @store_hidden_global_offset(i32 %n) {
50; CHECK-LABEL: store_hidden_global_offset:
51; NON-PIC:      i32.const $push0=, 0{{$}}
52; NON-PIC-NEXT: i32.store hidden_global_array+20($pop0), $0{{$}}
53; CHECK-NEXT:   end_function
54
55  %1 = getelementptr [10 x i32], [10 x i32]* @hidden_global_array, i32 0, i32 5
56  store i32 %n, i32* %1
57  ret void
58}
59
60; For non-hidden globals PIC code has to load the address from a wasm global
61; using the @GOT relocation type.
62
63
64define i32 @load_external_global() {
65; CHECK-LABEL:  load_external_global:
66; NON-PIC:      i32.const $push0=, 0{{$}}
67; NON-PIC-NEXT: i32.load $push1=, external_global($pop0){{$}}
68; CHECK-NEXT:   end_function
69
70  %1 = load i32, i32* @external_global
71  ret i32 %1
72}
73
74define i32 @load_external_global_offset() {
75; CHECK-LABEL:  load_external_global_offset:
76; NON-PIC:      i32.const $push[[L0:[0-9]+]]=, 0{{$}}
77; NON-PIC-NEXT: i32.load $push{{[0-9]+}}=, external_global_array+20($pop[[L0]]){{$}}
78; CHECK-NEXT:   end_function
79
80  %1 = getelementptr [10 x i32], [10 x i32]* @external_global_array, i32 0, i32 5
81  %2 = load i32, i32* %1
82  ret i32 %2
83}
84
85; Store to a non-hidden global via the wasm global.
86
87define void @store_external_global(i32 %n) {
88; CHECK-LABEL:  store_external_global:
89; NON-PIC:      i32.const $push0=, 0{{$}}
90; NON-PIC-NEXT: i32.store external_global($pop0), $0{{$}}
91; CHECK-NEXT:   end_function
92
93  store i32 %n, i32* @external_global
94  ret void
95}
96
97define void @store_external_global_offset(i32 %n) {
98; CHECK-LABEL:  store_external_global_offset:
99; NON-PIC:      i32.const $push0=, 0{{$}}
100; NON-PIC-NEXT: i32.store external_global_array+20($pop0), $0{{$}}
101; CHECK-NEXT:   end_function
102
103  %1 = getelementptr [10 x i32], [10 x i32]* @external_global_array, i32 0, i32 5
104  store i32 %n, i32* %1
105  ret void
106}
107