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1; RUN: opt -S -passes=loop-unroll -unroll-runtime -unroll-count=2 -verify-loop-info -pass-remarks=loop-unroll < %s 2>&1 | FileCheck %s2 3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"4target triple = "x86_64-unknown-linux-gnu"5 6; Verify that runtime-unrolling a top-level loop that has nested loops does not7; make the unroller produce invalid loop-info.8; CHECK: remark: {{.*}}: unrolled loop by a factor of 2 with run-time trip count9; CHECK: @widget10; CHECK: ret void11define void @widget(ptr %arg, ptr %arg1, ptr %p, ptr %q1, ptr %q2, i1 %c) local_unnamed_addr {12entry:13 br label %header.outer14 15header.outer: ; preds = %latch.outer, %entry16 %tmp = phi ptr [ %tmp8, %latch.outer ], [ %arg, %entry ]17 br label %header.inner18 19header.inner: ; preds = %latch.inner, %header.outer20 %tmp5 = load i64, ptr %q1, align 821 %tmp6 = icmp eq ptr %p, %arg22 br i1 %c, label %exiting.inner, label %latch.outer23 24exiting.inner: ; preds = %latch.inner, %header.outer25 br i1 %c, label %latch.inner, label %latch.outer26 27latch.inner: ; preds = %header.inner28 store i64 %tmp5, ptr %q2, align 829 br label %header.inner30 31latch.outer: ; preds = %header.inner32 store double 0.0, ptr %p, align 833 %tmp8 = getelementptr inbounds double, ptr %tmp, i64 134 %tmp9 = icmp eq ptr %tmp8, %arg135 br i1 %tmp9, label %exit, label %header.outer36 37exit: ; preds = %latch.outer38 ret void39}40