1; RUN: llc %s -o - | FileCheck %s
2
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-unknown-linux-gnu"
5
6$__clang_call_terminate = comdat any
7
8@_ZL11ShouldThrow = internal unnamed_addr global i1 false, align 1
9@_ZTIi = external constant i8*
10@str = private unnamed_addr constant [20 x i8] c"Threw an exception!\00"
11
12; Function Attrs: uwtable
13define void @_Z6throwsv() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
14
15; CHECK-LABEL:   _Z6throwsv:
16; CHECK:         popq	%rbx
17; CHECK-NEXT:    .cfi_def_cfa_offset 8
18; CHECK-NEXT:    retq
19; CHECK-NEXT:    .LBB0_1:
20; CHECK-NEXT:    .cfi_def_cfa_offset 16
21
22entry:
23  %.b5 = load i1, i1* @_ZL11ShouldThrow, align 1
24  br i1 %.b5, label %if.then, label %try.cont
25
26if.then:                                          ; preds = %entry
27  %exception = tail call i8* @__cxa_allocate_exception(i64 4)
28  %0 = bitcast i8* %exception to i32*
29  store i32 1, i32* %0, align 16
30  invoke void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null)
31          to label %unreachable unwind label %lpad
32
33lpad:                                             ; preds = %if.then
34  %1 = landingpad { i8*, i32 }
35          catch i8* null
36  %2 = extractvalue { i8*, i32 } %1, 0
37  %3 = tail call i8* @__cxa_begin_catch(i8* %2)
38  %puts = tail call i32 @puts(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @str, i64 0, i64 0))
39  invoke void @__cxa_rethrow() #4
40          to label %unreachable unwind label %lpad1
41
42lpad1:                                            ; preds = %lpad
43  %4 = landingpad { i8*, i32 }
44          cleanup
45  invoke void @__cxa_end_catch()
46          to label %eh.resume unwind label %terminate.lpad
47
48try.cont:                                         ; preds = %entry
49  ret void
50
51eh.resume:                                        ; preds = %lpad1
52  resume { i8*, i32 } %4
53
54terminate.lpad:                                   ; preds = %lpad1
55  %5 = landingpad { i8*, i32 }
56          catch i8* null
57  %6 = extractvalue { i8*, i32 } %5, 0
58  tail call void @__clang_call_terminate(i8* %6)
59  unreachable
60
61unreachable:                                      ; preds = %lpad, %if.then
62  unreachable
63}
64
65declare i8* @__cxa_allocate_exception(i64)
66
67declare void @__cxa_throw(i8*, i8*, i8*)
68
69declare i32 @__gxx_personality_v0(...)
70
71declare i8* @__cxa_begin_catch(i8*)
72
73declare void @__cxa_rethrow()
74
75declare void @__cxa_end_catch()
76
77; Function Attrs: noinline noreturn nounwind
78declare void @__clang_call_terminate(i8*)
79
80declare void @_ZSt9terminatev()
81
82
83; Function Attrs: nounwind
84declare i32 @puts(i8* nocapture readonly)
85
86