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; RUN: opt -loop-unswitch -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s
; RUN: opt -S -loop-unswitch -verify-loop-info -verify-dom-info %s | FileCheck %s
; STATS: 1 loop-unswitch - Total number of instructions analyzed
; CHECK: %0 = icmp eq i64 undef, 0
; CHECK-NEXT: br i1 %0, label %"5", label %"4"
; CHECK: "5": ; preds = %entry
; CHECK-NEXT: br label %"5.split"
; CHECK: "5.split": ; preds = %"5"
; CHECK-NEXT: br label %"16"
; CHECK: "16": ; preds = %"22", %"5.split"
; CHECK-NEXT: indirectbr i8* undef, [label %"22", label %"33"]
; CHECK: "22": ; preds = %"16"
; CHECK-NEXT: br i1 %0, label %"16", label %"26"
; CHECK: "26": ; preds = %"22"
; CHECK-NEXT: unreachable
define void @foo() {
entry:
%0 = icmp eq i64 undef, 0
br i1 %0, label %"5", label %"4"
"4": ; preds = %entry
unreachable
"5": ; preds = %entry
br label %"16"
"16": ; preds = %"22", %"5"
indirectbr i8* undef, [label %"22", label %"33"]
"22": ; preds = %"16"
br i1 %0, label %"16", label %"26"
"26": ; preds = %"22"
unreachable
"33": ; preds = %"16"
unreachable
}
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