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; RUN: not --crash llc < %s -enable-emscripten-cxx-exceptions -exception-model=wasm 2>&1 | FileCheck %s --check-prefix=WASM-EH-EM-EH
7; RUN: not --crash llc < %s -enable-emscripten-sjlj -exception-model=wasm 2>&1 | FileCheck %s --check-prefix=WASM-EH-EM-SJLJ
8
9target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
10target triple = "wasm32-unknown-unknown"
11
12%struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] }
13
14define void @exception() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
15; EH-LABEL:   type exception,@function
16; NONE-LABEL: type exception,@function
17entry:
18  invoke void @foo(i32 3)
19          to label %invoke.cont unwind label %lpad
20; EH:     call invoke_vi
21; EH-NOT: call __invoke_void_i32
22; NONE:   call foo
23
24invoke.cont:
25  invoke void @bar()
26          to label %try.cont unwind label %lpad
27; EH:     call invoke_v
28; EH-NOT: call __invoke_void
29; NONE:   call bar
30
31lpad:                                             ; preds = %entry
32  %0 = landingpad { i8*, i32 }
33          catch i8* null
34  %1 = extractvalue { i8*, i32 } %0, 0
35  %2 = extractvalue { i8*, i32 } %0, 1
36  %3 = call i8* @__cxa_begin_catch(i8* %1) #2
37  call void @__cxa_end_catch()
38  br label %try.cont
39
40try.cont:                                         ; preds = %entry, %lpad
41  ret void
42}
43
44define void @setjmp_longjmp() {
45; SJLJ-LABEL: type setjmp_longjmp,@function
46; NONE-LABEL: type setjmp_longjmp,@function
47entry:
48  %buf = alloca [1 x %struct.__jmp_buf_tag], align 16
49  %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0
50  %call = call i32 @setjmp(%struct.__jmp_buf_tag* %arraydecay) #0
51  %arraydecay1 = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0
52  call void @longjmp(%struct.__jmp_buf_tag* %arraydecay1, i32 1) #1
53  unreachable
54; SJLJ: call saveSetjmp
55; SJLJ: i32.const emscripten_longjmp
56; SJLJ-NOT: i32.const emscripten_longjmp_jmpbuf
57; SJLJ: call invoke_vii
58; SJLJ-NOT: call "__invoke_void_%struct.__jmp_buf_tag*_i32"
59; SJLJ: call testSetjmp
60
61; NONE: call setjmp
62; NONE: call longjmp
63}
64
65; Tests whether a user function with 'invoke_' prefix can be used
66declare void @invoke_ignoreme()
67define void @test_invoke_ignoreme() {
68; EH-LABEL:   type test_invoke_ignoreme,@function
69; SJLJ-LABEL: type test_invoke_ignoreme,@function
70entry:
71  call void @invoke_ignoreme()
72; EH:   call invoke_ignoreme
73; SJLJ: call invoke_ignoreme
74  ret void
75}
76
77declare void @foo(i32)
78declare void @bar()
79declare i32 @__gxx_personality_v0(...)
80declare i8* @__cxa_begin_catch(i8*)
81declare void @__cxa_end_catch()
82; Function Attrs: returns_twice
83declare i32 @setjmp(%struct.__jmp_buf_tag*) #0
84; Function Attrs: noreturn
85declare void @longjmp(%struct.__jmp_buf_tag*, i32) #1
86declare i8* @malloc(i32)
87declare void @free(i8*)
88
89attributes #0 = { returns_twice }
90attributes #1 = { noreturn }
91attributes #2 = { nounwind }
92
93; EH: .functype  invoke_vi (i32, i32) -> ()
94; EH: .import_module  invoke_vi, env
95; EH: .import_name  invoke_vi, invoke_vi
96; EH-NOT: .functype  __invoke_void_i32
97; EH-NOT: .import_module  __invoke_void_i32
98; EH-NOT: .import_name  __invoke_void_i32
99
100; SJLJ: .functype  emscripten_longjmp (i32, i32) -> ()
101; SJLJ: .import_module  emscripten_longjmp, env
102; SJLJ: .import_name  emscripten_longjmp, emscripten_longjmp
103; SJLJ-NOT: .functype  emscripten_longjmp_jmpbuf
104; SJLJ-NOT: .import_module  emscripten_longjmp_jmpbuf
105; SJLJ-NOT: .import_name  emscripten_longjmp_jmpbuf
106
107; WASM64-EH: LLVM ERROR: Emscripten EH/SjLj is not supported with wasm64 yet
108; WASM64-SJLJ: LLVM ERROR: Emscripten EH/SjLj is not supported with wasm64 yet
109; WASM-EH-EM-EH: LLVM ERROR: -exception-model=wasm not allowed with -enable-emscripten-cxx-exceptions
110; WASM-EH-EM-SJLJ: LLVM ERROR: Emscripten SjLj is not supported with Wasm EH yet
111