xref: /llvm-project/llvm/test/CodeGen/WebAssembly/func.ll (revision 349a2c37f929ea428f27c4d69601343296e71be4)
1; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s
2
3; Test that basic functions assemble as expected.
4
5target triple = "wasm32-unknown-unknown"
6
7; CHECK-LABEL: f0:
8; CHECK: return{{$}}
9; CHECK: end_function{{$}}
10define void @f0() {
11  ret void
12}
13
14; CHECK-LABEL: f1:
15; CHECK-NEXT: .functype f1 () -> (i32){{$}}
16; CHECK-NEXT: i32.const $push[[NUM:[0-9]+]]=, 0{{$}}
17; CHECK-NEXT: return $pop[[NUM]]{{$}}
18; CHECK: end_function{{$}}
19define i32 @f1() {
20  ret i32 0
21}
22
23; CHECK-LABEL: f2:
24; CHECK-NEXT: .functype f2 (i32, f32) -> (i32){{$}}
25; CHECK-NEXT: i32.const $push[[NUM:[0-9]+]]=, 0{{$}}
26; CHECK-NEXT: return $pop[[NUM]]{{$}}
27; CHECK: end_function{{$}}
28define i32 @f2(i32 %p1, float %p2) {
29  ret i32 0
30}
31
32; CHECK-LABEL: f3:
33; CHECK-NEXT: .functype f3 (i32, f32) -> (){{$}}
34; CHECK-NOT: local
35; CHECK-NEXT: return{{$}}
36; CHECK: end_function{{$}}
37define void @f3(i32 %p1, float %p2) {
38  ret void
39}
40
41; CHECK-LABEL: f4:
42; CHECK-NEXT: .functype f4 (i32) -> (i32){{$}}
43; CHECK-NOT: local
44; CHECK: end_function{{$}}
45define i32 @f4(i32 %x) {
46entry:
47   %c = trunc i32 %x to i1
48   br i1 %c, label %true, label %false
49true:
50   ret i32 0
51false:
52   ret i32 1
53}
54
55; CHECK-LABEL: f5:
56; CHECK-NEXT: .functype f5 () -> (f32){{$}}
57; CHECK-NEXT: unreachable
58define float @f5()  {
59 unreachable
60}
61