1; RUN: llc < %s -enable-emscripten-cxx-exceptions | FileCheck %s --check-prefix=EH
2; RUN: llc < %s -enable-emscripten-sjlj | FileCheck %s --check-prefix=SJLJ
3; RUN: llc < %s | FileCheck %s --check-prefix=NONE
4; RUN: not --crash llc < %s -enable-emscripten-cxx-exceptions -mtriple=wasm64-unknown-unknown 2>&1 | FileCheck %s --check-prefix=WASM64-EH
5; RUN: not --crash llc < %s -enable-emscripten-sjlj -mtriple=wasm64-unknown-unknown 2>&1 | FileCheck %s --check-prefix=WASM64-SJLJ
6
7target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
8target triple = "wasm32-unknown-unknown"
9
10%struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] }
11
12define void @exception() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
13; EH-LABEL:   type exception,@function
14; NONE-LABEL: type exception,@function
15entry:
16  invoke void @foo(i32 3)
17          to label %invoke.cont unwind label %lpad
18; EH:     call invoke_vi
19; EH-NOT: call __invoke_void_i32
20; NONE:   call foo
21
22invoke.cont:
23  invoke void @bar()
24          to label %try.cont unwind label %lpad
25; EH:     call invoke_v
26; EH-NOT: call __invoke_void
27; NONE:   call bar
28
29lpad:                                             ; preds = %entry
30  %0 = landingpad { i8*, i32 }
31          catch i8* null
32  %1 = extractvalue { i8*, i32 } %0, 0
33  %2 = extractvalue { i8*, i32 } %0, 1
34  %3 = call i8* @__cxa_begin_catch(i8* %1) #2
35  call void @__cxa_end_catch()
36  br label %try.cont
37
38try.cont:                                         ; preds = %entry, %lpad
39  ret void
40}
41
42define void @setjmp_longjmp() {
43; SJLJ-LABEL: type setjmp_longjmp,@function
44; NONE-LABEL: type setjmp_longjmp,@function
45entry:
46  %buf = alloca [1 x %struct.__jmp_buf_tag], align 16
47  %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0
48  %call = call i32 @setjmp(%struct.__jmp_buf_tag* %arraydecay) #0
49  %arraydecay1 = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0
50  call void @longjmp(%struct.__jmp_buf_tag* %arraydecay1, i32 1) #1
51  unreachable
52; SJLJ: call saveSetjmp
53; SJLJ: i32.const emscripten_longjmp
54; SJLJ-NOT: i32.const emscripten_longjmp_jmpbuf
55; SJLJ: call invoke_vii
56; SJLJ-NOT: call "__invoke_void_%struct.__jmp_buf_tag*_i32"
57; SJLJ: call testSetjmp
58
59; NONE: call setjmp
60; NONE: call longjmp
61}
62
63; Tests whether a user function with 'invoke_' prefix can be used
64declare void @invoke_ignoreme()
65define void @test_invoke_ignoreme() {
66; EH-LABEL:   type test_invoke_ignoreme,@function
67; SJLJ-LABEL: type test_invoke_ignoreme,@function
68entry:
69  call void @invoke_ignoreme()
70; EH:   call invoke_ignoreme
71; SJLJ: call invoke_ignoreme
72  ret void
73}
74
75declare void @foo(i32)
76declare void @bar()
77declare i32 @__gxx_personality_v0(...)
78declare i8* @__cxa_begin_catch(i8*)
79declare void @__cxa_end_catch()
80; Function Attrs: returns_twice
81declare i32 @setjmp(%struct.__jmp_buf_tag*) #0
82; Function Attrs: noreturn
83declare void @longjmp(%struct.__jmp_buf_tag*, i32) #1
84declare i8* @malloc(i32)
85declare void @free(i8*)
86
87attributes #0 = { returns_twice }
88attributes #1 = { noreturn }
89attributes #2 = { nounwind }
90
91; EH: .functype  invoke_vi (i32, i32) -> ()
92; EH: .import_module  invoke_vi, env
93; EH: .import_name  invoke_vi, invoke_vi
94; EH-NOT: .functype  __invoke_void_i32
95; EH-NOT: .import_module  __invoke_void_i32
96; EH-NOT: .import_name  __invoke_void_i32
97
98; SJLJ: .functype  emscripten_longjmp (i32, i32) -> ()
99; SJLJ: .import_module  emscripten_longjmp, env
100; SJLJ: .import_name  emscripten_longjmp, emscripten_longjmp
101; SJLJ-NOT: .functype  emscripten_longjmp_jmpbuf
102; SJLJ-NOT: .import_module  emscripten_longjmp_jmpbuf
103; SJLJ-NOT: .import_name  emscripten_longjmp_jmpbuf
104
105; WASM64-EH: LLVM ERROR: Emscripten EH/SjLj is not supported with wasm64 yet
106; WASM64-SJLJ: LLVM ERROR: Emscripten EH/SjLj is not supported with wasm64 yet
107