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 i32 @read_only() nounwind readonly
7 declare i32 @nounwind_fn() nounwind
12 define i8* @f1() nounwind uwtable ssp {
14 ; CHECK: call void @llvm.trap()
16 %call = invoke noalias i8* undef()
17 to label %invoke.cont unwind label %lpad
23 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
24 filter [0 x i8*] zeroinitializer
25 %1 = extractvalue { i8*, i32 } %0, 0
26 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
31 define i8* @f2() nounwind uwtable ssp {
33 ; CHECK: call void @llvm.trap()
35 %call = invoke noalias i8* null()
36 to label %invoke.cont unwind label %lpad
42 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
43 filter [0 x i8*] zeroinitializer
44 %1 = extractvalue { i8*, i32 } %0, 0
45 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
50 define i32 @f3() nounwind uwtable ssp {
53 ; CHECK-NEXT: ret i32 3
54 %call = invoke i32 @read_only()
55 to label %invoke.cont unwind label %lpad
61 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
62 filter [0 x i8*] zeroinitializer
63 %1 = extractvalue { i8*, i32 } %0, 0
64 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
69 define i32 @f4() nounwind uwtable ssp {
72 ; CHECK-NEXT: call i32 @read_only()
73 %call = invoke i32 @read_only()
74 to label %invoke.cont unwind label %lpad
77 ; CHECK-NEXT: ret i32 %call
81 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
82 filter [0 x i8*] zeroinitializer
83 %1 = extractvalue { i8*, i32 } %0, 0
84 tail call void @__cxa_call_unexpected(i8* %1) noreturn nounwind
89 define i32 @f5(i1 %cond, i8* %a, i8* %b) {
91 br i1 %cond, label %x, label %y
94 ; CHECK: invoke i32 @fn()
95 %call = invoke i32 @fn()
96 to label %cont unwind label %lpad
99 ; CHECK: call i32 @nounwind_fn()
100 %call2 = invoke i32 @nounwind_fn()
101 to label %cont unwind label %lpad
105 ; CHECK: ret i32 %phi
106 %phi = phi i32 [%call, %x], [%call2, %y]
111 %phi2 = phi i8* [%a, %x], [%b, %y]
112 %0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
113 filter [0 x i8*] zeroinitializer
114 ; CHECK: __cxa_call_unexpected(i8* %a)
115 tail call void @__cxa_call_unexpected(i8* %phi2) noreturn nounwind