1; RUN: opt -S -winehprepare -dwarfehprepare -mtriple x86_64-pc-windows-msvc < %s | FileCheck %s
2
3; FIXME: Add and test outlining here.
4
5declare void @maybe_throw()
6
7@_ZTIi = external constant i8*
8@g = external global i32
9
10declare i32 @__C_specific_handler(...)
11declare i32 @__gxx_personality_seh0(...)
12declare i32 @llvm.eh.typeid.for(i8*) readnone nounwind
13
14define i32 @use_seh() {
15entry:
16  invoke void @maybe_throw()
17      to label %cont unwind label %lpad
18
19cont:
20  ret i32 0
21
22lpad:
23  %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__C_specific_handler
24      cleanup
25      catch i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*)
26  %ehsel = extractvalue { i8*, i32 } %ehvals, 1
27  %filt_g_sel = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*))
28  %matches = icmp eq i32 %ehsel, %filt_g_sel
29  br i1 %matches, label %ret1, label %eh.resume
30
31ret1:
32  ret i32 1
33
34eh.resume:
35  resume { i8*, i32 } %ehvals
36}
37
38define internal i32 @filt_g(i8*, i8*) {
39  %g = load i32, i32* @g
40  ret i32 %g
41}
42
43; CHECK-LABEL: define i32 @use_seh()
44; CHECK: invoke void @maybe_throw()
45; CHECK-NEXT: to label %cont unwind label %lpad
46; CHECK: eh.resume:
47; CHECK-NEXT: unreachable
48
49
50; A MinGW64-ish EH style. It could happen if a binary uses both MSVC CRT and
51; mingw CRT and is linked with LTO.
52define i32 @use_gcc() {
53entry:
54  invoke void @maybe_throw()
55      to label %cont unwind label %lpad
56
57cont:
58  ret i32 0
59
60lpad:
61  %ehvals = landingpad { i8*, i32 } personality i32 (...)* @__gxx_personality_seh0
62      cleanup
63      catch i8* bitcast (i8** @_ZTIi to i8*)
64  %ehsel = extractvalue { i8*, i32 } %ehvals, 1
65  %filt_g_sel = call i32 @llvm.eh.typeid.for(i8* bitcast (i32 (i8*, i8*)* @filt_g to i8*))
66  %matches = icmp eq i32 %ehsel, %filt_g_sel
67  br i1 %matches, label %ret1, label %eh.resume
68
69ret1:
70  ret i32 1
71
72eh.resume:
73  resume { i8*, i32 } %ehvals
74}
75
76; CHECK-LABEL: define i32 @use_gcc()
77; CHECK: invoke void @maybe_throw()
78; CHECK-NEXT: to label %cont unwind label %lpad
79; CHECK: eh.resume:
80; CHECK: call void @_Unwind_Resume(i8* %exn.obj)
81