1; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
2
3; This test is based on the following code:
4;
5; void test()
6; {
7;   try {
8;     may_throw();
9;   } catch (...) {
10;     handle_exception();
11;   }
12; }
13;
14; Parts of the IR have been hand-edited to simplify the test case.
15; The full IR will be restored when Windows C++ EH support is complete.
16
17; ModuleID = 'catch-all.cpp'
18target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
19target triple = "x86_64-pc-windows-msvc"
20
21; The function entry in this case remains unchanged.
22; CHECK: define void @_Z4testv()
23; CHECK: entry:
24; CHECK:   invoke void @_Z9may_throwv()
25; CHECK:           to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]]
26
27; Function Attrs: uwtable
28define void @_Z4testv() #0 {
29entry:
30  %exn.slot = alloca i8*
31  %ehselector.slot = alloca i32
32  invoke void @_Z9may_throwv()
33          to label %invoke.cont unwind label %lpad
34
35invoke.cont:                                      ; preds = %entry
36  br label %try.cont
37
38; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry
39; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
40; CHECK-NEXT:           catch i8* null
41; CHECK-NEXT:   [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @_Z4testv.catch)
42; CHECK-NEXT:   indirectbr i8* [[RECOVER]], [label %try.cont]
43
44lpad:                                             ; preds = %entry
45  %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
46          catch i8* null
47  %tmp1 = extractvalue { i8*, i32 } %tmp, 0
48  store i8* %tmp1, i8** %exn.slot
49  %tmp2 = extractvalue { i8*, i32 } %tmp, 1
50  store i32 %tmp2, i32* %ehselector.slot
51  br label %catch
52
53; CHECK-NOT: catch:
54
55catch:                                            ; preds = %lpad
56  %exn = load i8*, i8** %exn.slot
57  call void @llvm.eh.begincatch(i8* %exn, i8* null) #2
58  call void @_Z16handle_exceptionv()
59  br label %invoke.cont2
60
61; CHECK-NOT: invoke.cont2:
62
63invoke.cont2:                                     ; preds = %catch
64  call void @llvm.eh.endcatch()
65  br label %try.cont
66
67try.cont:                                         ; preds = %invoke.cont2, %invoke.cont
68  ret void
69
70; CHECK: }
71}
72
73; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*)
74; CHECK: entry:
75; CHECK:   call void @_Z16handle_exceptionv()
76; CHECK:   ret i8* blockaddress(@_Z4testv, %try.cont)
77; CHECK: }
78
79declare void @_Z9may_throwv() #1
80
81declare i32 @__CxxFrameHandler3(...)
82
83declare void @llvm.eh.begincatch(i8*, i8*)
84
85declare void @_Z16handle_exceptionv() #1
86
87declare void @llvm.eh.endcatch()
88
89attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
90attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
91attributes #2 = { noinline noreturn nounwind }
92attributes #3 = { nounwind }
93attributes #4 = { noreturn nounwind }
94
95!llvm.ident = !{!0}
96
97!0 = !{!"clang version 3.7.0 (trunk 226027)"}
98