1; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=0 -S < %s | FileCheck %s 2 3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-apple-macosx10.14.0" 5 6; CHECK-LABEL: define {{.*}}@fun 7; CHECK: call {{.*}}@fun.cold.1( 8define void @fun() { 9entry: 10 br i1 undef, label %if.then, label %if.else 11 12if.then: 13 ; This will be marked by the inverse DFS on sink-predecesors. 14 br label %sink 15 16sink: 17 call void @sink() 18 19 ; Do not allow the forward-DFS on sink-successors to mark the block again. 20 br i1 undef, label %if.then, label %if.then.exit 21 22if.then.exit: 23 ret void 24 25if.else: 26 ret void 27} 28 29declare void @sink() cold 30