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author | YASHASVI KHATAVKAR <yashasvi.khatavkar@intel.com> | 2022-04-25 20:46:14 -0400 |
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committer | YASHASVI KHATAVKAR <yashasvi.khatavkar@intel.com> | 2022-04-25 20:50:00 -0400 |
commit | e83543f8c2ef79f82f2e291072a956e23ab08efa (patch) | |
tree | e90d0a8f70be2067b8ae395036f2796edc9b8277 /llvm/lib/IR/Constants.cpp | |
parent | 8e4cd7295cb56c2baa6fbed1b739ed974738c307 (diff) | |
download | llvm-e83543f8c2ef79f82f2e291072a956e23ab08efa.zip llvm-e83543f8c2ef79f82f2e291072a956e23ab08efa.tar.gz llvm-e83543f8c2ef79f82f2e291072a956e23ab08efa.tar.bz2 |
Don't replace Undef with null value for Constants Differential Revision:https://reviews.llvm.org/D124098
Diffstat (limited to 'llvm/lib/IR/Constants.cpp')
-rw-r--r-- | llvm/lib/IR/Constants.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp index 1a7c9d3..5dcf1ba 100644 --- a/llvm/lib/IR/Constants.cpp +++ b/llvm/lib/IR/Constants.cpp @@ -741,9 +741,13 @@ static bool constantIsDead(const Constant *C, bool RemoveDeadUsers) { ++I; } - if (RemoveDeadUsers) + if (RemoveDeadUsers) { + // If C is only used by metadata, it should not be preserved but should + // have its uses replaced. + ReplaceableMetadataImpl::SalvageDebugInfo(*C); const_cast<Constant *>(C)->destroyConstant(); - + } + return true; } |