1; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-temporary-workarounds=false | FileCheck %s
2; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -fast-isel -fast-isel-abort=1 -wasm-temporary-workarounds=false | FileCheck %s
3
4; Test that basic call operations assemble as expected.
5
6target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
7target triple = "wasm32-unknown-unknown"
8
9declare i32 @i32_nullary()
10declare i32 @i32_unary(i32)
11declare i32 @i32_binary(i32, i32)
12declare i64 @i64_nullary()
13declare float @float_nullary()
14declare double @double_nullary()
15declare void @void_nullary()
16
17; CHECK-LABEL: call_i32_nullary:
18; CHECK-NEXT: .result i32{{$}}
19; CHECK-NEXT: {{^}} i32.call $push[[NUM:[0-9]+]]=, i32_nullary@FUNCTION{{$}}
20; CHECK-NEXT: return $pop[[NUM]]{{$}}
21define i32 @call_i32_nullary() {
22  %r = call i32 @i32_nullary()
23  ret i32 %r
24}
25
26; CHECK-LABEL: call_i64_nullary:
27; CHECK-NEXT: .result i64{{$}}
28; CHECK-NEXT: {{^}} i64.call $push[[NUM:[0-9]+]]=, i64_nullary@FUNCTION{{$}}
29; CHECK-NEXT: return $pop[[NUM]]{{$}}
30define i64 @call_i64_nullary() {
31  %r = call i64 @i64_nullary()
32  ret i64 %r
33}
34
35; CHECK-LABEL: call_float_nullary:
36; CHECK-NEXT: .result f32{{$}}
37; CHECK-NEXT: {{^}} f32.call $push[[NUM:[0-9]+]]=, float_nullary@FUNCTION{{$}}
38; CHECK-NEXT: return $pop[[NUM]]{{$}}
39define float @call_float_nullary() {
40  %r = call float @float_nullary()
41  ret float %r
42}
43
44; CHECK-LABEL: call_double_nullary:
45; CHECK-NEXT: .result f64{{$}}
46; CHECK-NEXT: {{^}} f64.call $push[[NUM:[0-9]+]]=, double_nullary@FUNCTION{{$}}
47; CHECK-NEXT: return $pop[[NUM]]{{$}}
48define double @call_double_nullary() {
49  %r = call double @double_nullary()
50  ret double %r
51}
52
53; CHECK-LABEL: call_void_nullary:
54; CHECK-NEXT: {{^}} call void_nullary@FUNCTION{{$}}
55; CHECK-NEXT: return{{$}}
56define void @call_void_nullary() {
57  call void @void_nullary()
58  ret void
59}
60
61; CHECK-LABEL: call_i32_unary:
62; CHECK-NEXT: .param i32{{$}}
63; CHECK-NEXT: .result i32{{$}}
64; CHECK-NEXT: get_local $push[[L0:[0-9]+]]=, 0{{$}}
65; CHECK-NEXT: {{^}} i32.call $push[[NUM:[0-9]+]]=, i32_unary@FUNCTION, $pop[[L0]]{{$}}
66; CHECK-NEXT: return $pop[[NUM]]{{$}}
67define i32 @call_i32_unary(i32 %a) {
68  %r = call i32 @i32_unary(i32 %a)
69  ret i32 %r
70}
71
72; CHECK-LABEL: call_i32_binary:
73; CHECK-NEXT: .param i32, i32{{$}}
74; CHECK-NEXT: .result i32{{$}}
75; CHECK-NEXT: get_local $push[[L0:[0-9]+]]=, 0{{$}}
76; CHECK-NEXT: get_local $push[[L1:[0-9]+]]=, 1{{$}}
77; CHECK-NEXT: {{^}} i32.call $push[[NUM:[0-9]+]]=, i32_binary@FUNCTION, $pop[[L0]], $pop[[L1]]{{$}}
78; CHECK-NEXT: return $pop[[NUM]]{{$}}
79define i32 @call_i32_binary(i32 %a, i32 %b) {
80  %r = call i32 @i32_binary(i32 %a, i32 %b)
81  ret i32 %r
82}
83
84; CHECK-LABEL: call_indirect_void:
85; CHECK-NEXT: .param i32{{$}}
86; CHECK-NEXT: get_local $push[[L0:[0-9]+]]=, 0{{$}}
87; CHECK-NEXT: {{^}} call_indirect $pop[[L0]]{{$}}
88; CHECK-NEXT: return{{$}}
89define void @call_indirect_void(void ()* %callee) {
90  call void %callee()
91  ret void
92}
93
94; CHECK-LABEL: call_indirect_i32:
95; CHECK-NEXT: .param i32{{$}}
96; CHECK-NEXT: .result i32{{$}}
97; CHECK-NEXT: get_local $push[[L0:[0-9]+]]=, 0{{$}}
98; CHECK-NEXT: {{^}} i32.call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]]{{$}}
99; CHECK-NEXT: return $pop[[NUM]]{{$}}
100define i32 @call_indirect_i32(i32 ()* %callee) {
101  %t = call i32 %callee()
102  ret i32 %t
103}
104
105; CHECK-LABEL: call_indirect_arg:
106; CHECK-NEXT: .param i32, i32{{$}}
107; CHECK-NEXT: get_local $push[[L0:[0-9]+]]=, 1{{$}}
108; CHECK-NEXT: get_local $push[[L1:[0-9]+]]=, 0{{$}}
109; CHECK-NEXT: {{^}} call_indirect $pop[[L0]], $pop[[L1]]{{$}}
110; CHECK-NEXT: return{{$}}
111define void @call_indirect_arg(void (i32)* %callee, i32 %arg) {
112  call void %callee(i32 %arg)
113  ret void
114}
115
116; CHECK-LABEL: call_indirect_arg_2:
117; CHECK-NEXT: .param i32, i32, i32{{$}}
118; CHECK-NEXT: get_local $push[[L0:[0-9]+]]=, 1{{$}}
119; CHECK-NEXT: get_local $push[[L1:[0-9]+]]=, 2{{$}}
120; CHECK-NEXT: get_local $push[[L2:[0-9]+]]=, 0{{$}}
121; CHECK-NEXT: {{^}} i32.call_indirect $push[[NUM:[0-9]+]]=, $pop[[L0]], $pop[[L1]], $pop[[L2]]{{$}}
122; CHECK-NEXT: drop $pop[[NUM]]{{$}}
123; CHECK-NEXT: return{{$}}
124define void @call_indirect_arg_2(i32 (i32, i32)* %callee, i32 %arg, i32 %arg2) {
125  call i32 %callee(i32 %arg, i32 %arg2)
126  ret void
127}
128
129; CHECK-LABEL: tail_call_void_nullary:
130; CHECK-NEXT: {{^}} call void_nullary@FUNCTION{{$}}
131; CHECK-NEXT: return{{$}}
132define void @tail_call_void_nullary() {
133  tail call void @void_nullary()
134  ret void
135}
136
137; CHECK-LABEL: fastcc_tail_call_void_nullary:
138; CHECK-NEXT: {{^}} call void_nullary@FUNCTION{{$}}
139; CHECK-NEXT: return{{$}}
140define void @fastcc_tail_call_void_nullary() {
141  tail call fastcc void @void_nullary()
142  ret void
143}
144
145; CHECK-LABEL: coldcc_tail_call_void_nullary:
146; CHECK-NEXT: {{^}} call void_nullary@FUNCTION{{$}}
147; CHECK-NEXT: return{{$}}
148define void @coldcc_tail_call_void_nullary() {
149  tail call coldcc void @void_nullary()
150  ret void
151}
152
153; CHECK-LABEL: call_constexpr:
154; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}
155; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 3{{$}}
156; CHECK-NEXT: call .Lbitcast@FUNCTION, $pop[[L0]], $pop[[L1]]{{$}}
157; CHECK-NEXT: call other_void_nullary@FUNCTION{{$}}
158; CHECK-NEXT: call void_nullary@FUNCTION{{$}}
159; CHECK-NEXT: return{{$}}
160declare void @vararg_func(...)
161declare void @other_void_nullary()
162define void @call_constexpr() {
163bb0:
164  call void bitcast (void (...)* @vararg_func to void (i32, i32)*)(i32 2, i32 3)
165  br label %bb1
166bb1:
167  call void select (i1 0, void ()* @void_nullary, void ()* @other_void_nullary)()
168  br label %bb2
169bb2:
170  call void inttoptr (i32 ptrtoint (void ()* @void_nullary to i32) to void ()*)()
171  ret void
172}
173
174; TODO: test the following:
175;  - More argument combinations.
176;  - Tail call.
177;  - Interesting returns (struct, multiple).
178;  - Vararg.
179