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llvm-mirror/test/Linker/module-flags-dont-change-others.ll
Duncan P. N. Exon Smith 0d2cbb7da2 Linker: Don't use MDNode::replaceOperandWith()
`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
2015-01-07 21:32:27 +00:00

27 lines
842 B
LLVM

; RUN: llvm-link %s %S/Inputs/module-flags-dont-change-others.ll -S -o - | FileCheck %s
; Test that module-flag linking doesn't change other metadata. In particular,
; !named should still point at the unmodified tuples (!3, !4, and !5) that
; happen to also serve as module flags.
; CHECK: !named = !{!0, !1, !2, !3, !4, !5}
; CHECK: !llvm.module.flags = !{!6, !7, !8}
!named = !{!0, !1, !2, !3, !4, !5}
!llvm.module.flags = !{!3, !4, !5}
; CHECK: !0 = !{}
; CHECK: !1 = !{!0}
; CHECK: !2 = !{!0, !1}
; CHECK: !3 = !{i32 1, !"foo", i32 927}
; CHECK: !4 = !{i32 5, !"bar", !0}
; CHECK: !5 = !{i32 6, !"baz", !1}
; CHECK: !6 = !{i32 4, !"foo", i32 37}
; CHECK: !7 = !{i32 5, !"bar", !1}
; CHECK: !8 = !{i32 6, !"baz", !2}
!0 = !{}
!1 = !{!0}
!2 = !{!0, !1}
!3 = !{i32 1, !"foo", i32 927}
!4 = !{i32 5, !"bar", !0}
!5 = !{i32 6, !"baz", !1}