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1; RUN: llvm-link %S/Inputs/errno-tbaa-metadata.ll %S/Inputs/errno-tbaa-cxx-metadata.ll -S -o - | FileCheck %s --check-prefix=CHECK-MERGE2; RUN: llvm-link %S/Inputs/errno-tbaa-metadata.ll %S/Inputs/errno-tbaa-metadata.ll -S -o - | FileCheck %s --check-prefix=CHECK-DEDUP3 4; Ensure merging when linking modules w/ different errno TBAA hierarchies.5; CHECK-MERGE: !llvm.errno.tbaa = !{![[NODE0:[0-9]+]], ![[NODE1:[0-9]+]]}6 7; Ensure deduplication when linking modules w/ identical errno TBAA nodes.8; CHECK-DEDUP: !llvm.errno.tbaa = !{![[NODE:[0-9]+]]}9