1 ; RUN: opt -prune-eh -inline -jump-threading -S < %s | FileCheck %s
3 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4 target triple = "x86_64-unknown-linux-gnu"
6 @d = external global i32*, align 8
8 define void @fn3(i1 %B) {
10 br i1 %B, label %if.end, label %if.then
12 if.then: ; preds = %entry
16 if.end: ; preds = %entry
21 define internal void @fn2() unnamed_addr {
29 ; CHECK-LABEL: define internal void @fn2(
30 ; CHECK: %[[LOAD:.*]] = load i32*, i32** @d, align 8
31 ; CHECK: %tobool1.i = icmp eq i32* %[[LOAD]], null
33 define internal void @fn1() unnamed_addr {
37 for.body: ; preds = %entry
38 %0 = load i32*, i32** @d, align 8
39 %tobool1 = icmp eq i32* %0, null
40 br i1 %tobool1, label %cond.false, label %cond.end
42 cond.false: ; preds = %for.body
43 call void @__assert_fail(i8* null)
46 cond.end: ; preds = %for.body
47 %1 = load i32*, i32** @d, align 8
48 %cmp = icmp eq i32* %1, null
49 br i1 %cmp, label %cond.end4, label %cond.false3
51 cond.false3: ; preds = %cond.end
52 call void @__assert_fail(i8* null)
55 cond.end4: ; preds = %cond.end
56 call void @__assert_fail(i8* null)
59 for.end: ; No predecessors!
63 declare void @__assert_fail(i8*)
65 ; Function Attrs: noreturn nounwind
66 declare void @llvm.trap() #0
68 attributes #0 = { noreturn nounwind }