; RUN: opt -S -loop-simplifycfg < %s | FileCheck %s ; RUN: opt -S -passes='require<domtree>,loop(simplify-cfg)' < %s | FileCheck %s ; CHECK-LABEL: foo ; CHECK: entry: ; CHECK-NEXT: br label %[[LOOP:[a-z]+]] ; CHECK: [[LOOP]]: ; CHECK-NEXT: phi ; CHECK-NOT: br label ; CHECK: br i1 define i32 @foo(i32* %P, i64* %Q) { entry: br label %outer outer: ; preds = %outer.latch2, %entry %y.2 = phi i32 [ 0, %entry ], [ %y.inc2, %outer.latch2 ] br label %inner inner: ; preds = %outer store i32 0, i32* %P store i32 1, i32* %P store i32 2, i32* %P %y.inc2 = add nsw i32 %y.2, 1 %exitcond.outer = icmp eq i32 %y.inc2, 3 store i32 %y.2, i32* %P br i1 %exitcond.outer, label %exit, label %outer.latch2 outer.latch2: ; preds = %inner %t = sext i32 %y.inc2 to i64 store i64 %t, i64* %Q br label %outer exit: ; preds = %inner ret i32 0 }