8: ; preds = %4, %2
ret void
}
+
+define void @baz(i32 %0, i32 %1) nounwind {
+; CHECK-LABEL: baz:
+; CHECK: # %bb.0:
+; CHECK-NEXT: pushq %rbx
+; CHECK-NEXT: testl %edi, %edi
+; CHECK-NEXT: je .LBB1_3
+; CHECK-NEXT: # %bb.1: # %.preheader
+; CHECK-NEXT: movl %edi, %ebx
+; CHECK-NEXT: decl %ebx
+; CHECK-NEXT: .p2align 4, 0x90
+; CHECK-NEXT: .LBB1_2: # =>This Inner Loop Header: Depth=1
+; CHECK-NEXT: movl %ebx, %edi
+; CHECK-NEXT: callq foo
+; CHECK-NEXT: decl %ebx
+; CHECK-NEXT: cmpl $-1, %ebx
+; CHECK-NEXT: je .LBB1_2
+; CHECK-NEXT: .LBB1_3:
+; CHECK-NEXT: popq %rbx
+; CHECK-NEXT: retq
+ %3 = icmp eq i32 %0, 0
+ br i1 %3, label %8, label %4
+
+4: ; preds = %2, %4
+ %5 = phi i32 [ %6, %4 ], [ %0, %2 ]
+ %6 = add nsw i32 %5, -1
+ tail call void @foo(i32 %6)
+ %7 = icmp ne i32 %6, 0
+ br i1 %7, label %8, label %4
+
+8: ; preds = %4, %2
+ ret void
+}
+
declare void @foo(i32)