; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -gvn -S | FileCheck %s define i1 @foo() { ; CHECK-LABEL: @foo( ; CHECK-NEXT: call void @llvm.assume(i1 undef) ; CHECK-NEXT: ret i1 undef ; call void @llvm.assume(i1 undef) ret i1 undef } declare void @llvm.assume(i1)