| ; RUN: opt -prune-eh -inline -jump-threading -S < %s | FileCheck %s |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @d = external global i32*, align 8 |
| |
| define void @fn3(i1 %B) { |
| entry: |
| br i1 %B, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| call void @fn2(i1 %B) |
| ret void |
| |
| if.end: ; preds = %entry |
| call void @fn2(i1 %B) |
| ret void |
| } |
| |
| define internal void @fn2(i1 %B) unnamed_addr { |
| entry: |
| call void @fn1() |
| call void @fn1() |
| call void @fn1() |
| br i1 %B, label %if.end, label %if.then |
| if.then: |
| unreachable |
| |
| if.end: |
| unreachable |
| } |
| |
| ; CHECK-LABEL: define internal void @fn2( |
| ; CHECK: %[[LOAD:.*]] = load i32*, i32** @d, align 8 |
| ; CHECK: %tobool1.i = icmp eq i32* %[[LOAD]], null |
| |
| define internal void @fn1() unnamed_addr { |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry |
| %0 = load i32*, i32** @d, align 8 |
| %tobool1 = icmp eq i32* %0, null |
| br i1 %tobool1, label %cond.false, label %cond.end |
| |
| cond.false: ; preds = %for.body |
| call void @__assert_fail(i8* null) |
| unreachable |
| |
| cond.end: ; preds = %for.body |
| %1 = load i32*, i32** @d, align 8 |
| %cmp = icmp eq i32* %1, null |
| br i1 %cmp, label %cond.end4, label %cond.false3 |
| |
| cond.false3: ; preds = %cond.end |
| call void @__assert_fail(i8* null) |
| unreachable |
| |
| cond.end4: ; preds = %cond.end |
| call void @__assert_fail(i8* null) |
| unreachable |
| |
| for.end: ; No predecessors! |
| ret void |
| } |
| |
| declare void @__assert_fail(i8*) |
| |
| ; Function Attrs: noreturn nounwind |
| declare void @llvm.trap() #0 |
| |
| attributes #0 = { noreturn nounwind } |
