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| author | Mehdi Amini <mehdi.amini@apple.com> | 2016-12-23 02:20:09 +0000 |
|---|---|---|
| committer | Mehdi Amini <mehdi.amini@apple.com> | 2016-12-23 02:20:09 +0000 |
| commit | 5ae6170fc29271ea76c18c09ef102f8613ae70fa (patch) | |
| tree | a8b00839bcfda24098687b950cb91ed6c8cf2555 /llvm/lib/Bitcode/Reader/MetadataLoader.cpp | |
| parent | 70a9cd4cbe20dfdd26051c3683c5d0bf3b8a2ec0 (diff) | |
| download | bcm5719-llvm-5ae6170fc29271ea76c18c09ef102f8613ae70fa.tar.gz bcm5719-llvm-5ae6170fc29271ea76c18c09ef102f8613ae70fa.zip | |
MetadataLoader: Add an assertion for the implicit invariant of PlaceHolder while loading Metadata (NFC)
llvm-svn: 290408
Diffstat (limited to 'llvm/lib/Bitcode/Reader/MetadataLoader.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Reader/MetadataLoader.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp index 1cfa1a82182..93212b0aa77 100644 --- a/llvm/lib/Bitcode/Reader/MetadataLoader.cpp +++ b/llvm/lib/Bitcode/Reader/MetadataLoader.cpp @@ -372,8 +372,14 @@ DistinctMDOperandPlaceholder &PlaceholderQueue::getPlaceholderOp(unsigned ID) { void PlaceholderQueue::flush(BitcodeReaderMetadataList &MetadataList) { while (!PHs.empty()) { - PHs.front().replaceUseWith( - MetadataList.getMetadataFwdRef(PHs.front().getID())); + auto *MD = MetadataList.getMetadataFwdRef(PHs.front().getID()); +#ifndef NDEBUG + if (auto MDN = dyn_cast<MDNode>(MD)) { + assert(MDN->isResolved() && + "Flushing Placeholder while cycles aren't resolved"); + } +#endif + PHs.front().replaceUseWith(MD); PHs.pop_front(); } } |
