llvm-6502/distinct-cycles.ll at a4d6a35bf86591bff00e6a6b599a56dc581d4fe0 - llvm-6502 - Applefritter: Git

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Duncan P. N. Exon Smith a7a6be22eb Utils: Resolve cycles under distinct MDNodes

Track unresolved nodes under distinct `MDNode`s during `MapMetadata()`,
and resolve them at the end.  Previously, these cycles wouldn't get
resolved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228180 91177308-0d34-0410-b5e6-96231b3b80d8

2015-02-04 19:44:34 +00:00

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 ; RUN: llvm-link -o - -S %s | FileCheck %s
 ; Crasher for PR22456: MapMetadata() should resolve all cycles.
 ; CHECK: !named = !{!0}
 !named = !{!0}
 ; CHECK: !0 = distinct !{!1}
 !0 = distinct !{!1}
 ; CHECK-NEXT: !1 = !{!2}
 ; CHECK-NEXT: !2 = !{!1}
 !1 = !{!2}
 !2 = !{!1}