1 ; RUN: opt < %s -simplifycfg -S | FileCheck %s
2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4 declare i32 @__gxx_personality_v0(...)
5 declare void @__cxa_call_unexpected(i8*)
6 declare void @purefn() nounwind readnone
7 declare i32 @read_only() nounwind readonly
8 declare i32 @nounwind_fn() nounwind
13 define i8* @f1() nounwind uwtable ssp {
15 ; CHECK: call void @llvm.trap()
17 %call = invoke noalias i8* undef()
18 to label %invoke.cont unwind label %lpad
24 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
25 filter [0 x i8*] zeroinitializer
26 %1 = extractvalue { i8*, i32 } %0, 0
27 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
32 define i8* @f2() nounwind uwtable ssp {
34 ; CHECK: call void @llvm.trap()
36 %call = invoke noalias i8* null()
37 to label %invoke.cont unwind label %lpad
43 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
44 filter [0 x i8*] zeroinitializer
45 %1 = extractvalue { i8*, i32 } %0, 0
46 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
51 define i32 @f3() nounwind uwtable ssp {
54 ; CHECK-NEXT: ret i32 3
55 %call = invoke i32 @read_only()
56 to label %invoke.cont unwind label %lpad
62 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
63 filter [0 x i8*] zeroinitializer
64 %1 = extractvalue { i8*, i32 } %0, 0
65 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
70 define i32 @f4() nounwind uwtable ssp {
73 ; CHECK-NEXT: call i32 @read_only()
74 %call = invoke i32 @read_only()
75 to label %invoke.cont unwind label %lpad
78 ; CHECK-NEXT: ret i32 %call
82 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
83 filter [0 x i8*] zeroinitializer
84 %1 = extractvalue { i8*, i32 } %0, 0
85 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
90 define i32 @f5(i1 %cond, i8* %a, i8* %b) {
92 br i1 %cond, label %x, label %y
95 ; CHECK: invoke i32 @fn()
96 %call = invoke i32 @fn()
97 to label %cont unwind label %lpad
100 ; CHECK: call i32 @nounwind_fn()
101 %call2 = invoke i32 @nounwind_fn()
102 to label %cont unwind label %lpad
106 ; CHECK: ret i32 %phi
107 %phi = phi i32 [%call, %x], [%call2, %y]
112 %phi2 = phi i8* [%a, %x], [%b, %y]
113 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
114 filter [0 x i8*] zeroinitializer
115 ; CHECK: __cxa_call_unexpected(i8* %a)
116 tail call void @__cxa_call_unexpected(i8* %phi2) noreturn nounwind
123 invoke void @purefn()
124 to label %invoke.cont1 unwind label %lpad
127 %foo = invoke i32 @fn()
128 to label %invoke.cont2 unwind label %lpad
135 %tmp = phi i8* [ null, %invoke.cont1 ], [ null, %entry ]
136 landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)