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0d2cbb7da2
`MDNode::replaceOperandWith()` changes all instances of metadata. Stop using it when linking module flags, since (due to uniquing) the flag values could be used by other metadata. Instead, use new API `NamedMDNode::setOperand()` to update the reference directly. llvm-svn: 225397
27 lines
842 B
LLVM
27 lines
842 B
LLVM
; RUN: llvm-link %s %S/Inputs/module-flags-dont-change-others.ll -S -o - | FileCheck %s
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; Test that module-flag linking doesn't change other metadata. In particular,
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; !named should still point at the unmodified tuples (!3, !4, and !5) that
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; happen to also serve as module flags.
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; CHECK: !named = !{!0, !1, !2, !3, !4, !5}
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; CHECK: !llvm.module.flags = !{!6, !7, !8}
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!named = !{!0, !1, !2, !3, !4, !5}
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!llvm.module.flags = !{!3, !4, !5}
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; CHECK: !0 = !{}
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; CHECK: !1 = !{!0}
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; CHECK: !2 = !{!0, !1}
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; CHECK: !3 = !{i32 1, !"foo", i32 927}
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; CHECK: !4 = !{i32 5, !"bar", !0}
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; CHECK: !5 = !{i32 6, !"baz", !1}
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; CHECK: !6 = !{i32 4, !"foo", i32 37}
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; CHECK: !7 = !{i32 5, !"bar", !1}
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; CHECK: !8 = !{i32 6, !"baz", !2}
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!0 = !{}
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!1 = !{!0}
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!2 = !{!0, !1}
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!3 = !{i32 1, !"foo", i32 927}
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!4 = !{i32 5, !"bar", !0}
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!5 = !{i32 6, !"baz", !1}
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