1; RUN: llc < %s -asm-verbose=false -disable-wasm-explicit-locals | FileCheck %s
2
3; Test that function pointer casts are replaced with wrappers.
4
5target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
6target triple = "wasm32-unknown-unknown-wasm"
7
8; CHECK-LABEL: test:
9; CHECK-NEXT: call        .Lbitcast@FUNCTION{{$}}
10; CHECK-NEXT: call        .Lbitcast@FUNCTION{{$}}
11; CHECK-NEXT: call        .Lbitcast.1@FUNCTION{{$}}
12; CHECK-NEXT: i32.const   $push[[L0:[0-9]+]]=, 0
13; CHECK-NEXT: call        .Lbitcast.2@FUNCTION, $pop[[L0]]{{$}}
14; CHECK-NEXT: i32.const   $push[[L1:[0-9]+]]=, 0
15; CHECK-NEXT: call        .Lbitcast.2@FUNCTION, $pop[[L1]]{{$}}
16; CHECK-NEXT: i32.const   $push[[L2:[0-9]+]]=, 0
17; CHECK-NEXT: call        .Lbitcast.2@FUNCTION, $pop[[L2]]{{$}}
18; CHECK-NEXT: call        foo0@FUNCTION
19; CHECK-NEXT: i32.call    $drop=, .Lbitcast.3@FUNCTION{{$}}
20; CHECK-NEXT: call        foo2@FUNCTION{{$}}
21; CHECK-NEXT: call        foo1@FUNCTION{{$}}
22; CHECK-NEXT: call        foo3@FUNCTION{{$}}
23; CHECK-NEXT: end_function
24
25; CHECK-LABEL: test_varargs:
26; CHECK:      set_global
27; CHECK:      i32.const   $push[[L3:[0-9]+]]=, 0{{$}}
28; CHECK-NEXT: call        vararg@FUNCTION, $pop[[L3]]{{$}}
29; CHECK-NEXT: i32.const   $push[[L4:[0-9]+]]=, 0{{$}}
30; CHECK-NEXT: i32.store   0($[[L5:[0-9]+]]), $pop[[L4]]{{$}}
31; CHECK-NEXT: call        plain@FUNCTION, $[[L5]]{{$}}
32
33; CHECK-LABEL: .Lbitcast:
34; CHECK-NEXT: call        has_i32_arg@FUNCTION, $0{{$}}
35; CHECK-NEXT: end_function
36
37; CHECK-LABEL: .Lbitcast.1:
38; CHECK-NEXT: call        $drop=, has_i32_ret@FUNCTION{{$}}
39; CHECK-NEXT: end_function
40
41; CHECK-LABEL: .Lbitcast.2:
42; CHECK-NEXT: .param      i32
43; CHECK-NEXT: call        foo0@FUNCTION{{$}}
44; CHECK-NEXT: end_function
45
46; CHECK-LABEL: .Lbitcast.3:
47; CHECK-NEXT: .result     i32
48; CHECK-NEXT: call        foo1@FUNCTION{{$}}
49; CHECK-NEXT: copy_local  $push0=, $0
50; CHECK-NEXT: end_function
51
52declare void @has_i32_arg(i32)
53declare i32 @has_i32_ret()
54declare void @vararg(...)
55declare void @plain(i32)
56
57declare void @foo0()
58declare void @foo1()
59declare void @foo2()
60declare void @foo3()
61
62define void @test() {
63entry:
64  call void bitcast (void (i32)* @has_i32_arg to void ()*)()
65  call void bitcast (void (i32)* @has_i32_arg to void ()*)()
66  call void bitcast (i32 ()* @has_i32_ret to void ()*)()
67  call void bitcast (void ()* @foo0 to void (i32)*)(i32 0)
68  %p = bitcast void ()* @foo0 to void (i32)*
69  call void %p(i32 0)
70  %q = bitcast void ()* @foo0 to void (i32)*
71  call void %q(i32 0)
72  %r = bitcast void (i32)* %q to void ()*
73  call void %r()
74  %t = call i32 bitcast (void ()* @foo1 to i32 ()*)()
75  call void bitcast (void ()* @foo2 to void ()*)()
76  call void @foo1()
77  call void @foo3()
78
79  ret void
80}
81
82define void @test_varargs() {
83  call void bitcast (void (...)* @vararg to void (i32)*)(i32 0)
84  call void (...) bitcast (void (i32)* @plain to void (...)*)(i32 0)
85  ret void
86}
87