1; Test checking that distinct metadata reduction pass handles null pointers properly. 2; This test will lead to a crash if nullptrs inside distinct metadata are not handled correctly, in this case inside DICompileUnit 3 4; RUN: llvm-reduce --delta-passes=distinct-metadata --aggressive-named-md-reduction --test FileCheck --test-arg %s --test-arg --input-file %s -o %t 5; CHECK: {{.*}}distinct !DICompileUnit{{.*}} 6 7 8!llvm.module.flags = !{!0, !1, !6} 9!llvm.dbg.cu = !{!4} 10 11!0 = !{i32 7, !"Dwarf Version", i32 4} 12!1 = !{i32 2, !"Source Lang Literal", !2} 13!2 = !{!3} 14!3 = !{!4, i32 33} 15!4 = distinct !DICompileUnit(language: DW_LANG_OpenCL, file: !5, producer: "foobar", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug) 16!5 = !DIFile(filename: "main.cpp", directory: "foodir") 17!6 = !{i32 2, !"Debug Info Version", i32 3} 18