diff options
Diffstat (limited to 'llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp index 37905daee4c..48bd0cda759 100644 --- a/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp +++ b/llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp @@ -1563,6 +1563,17 @@ bool DevirtModule::run() { M.getFunction(Intrinsic::getName(Intrinsic::type_checked_load)); Function *AssumeFunc = M.getFunction(Intrinsic::getName(Intrinsic::assume)); + // If only some of the modules were split, we cannot correctly handle + // code that contains type tests or type checked loads. + if ((ExportSummary && ExportSummary->partiallySplitLTOUnits()) || + (ImportSummary && ImportSummary->partiallySplitLTOUnits())) { + if ((TypeTestFunc && !TypeTestFunc->use_empty()) || + (TypeCheckedLoadFunc && !TypeCheckedLoadFunc->use_empty())) + report_fatal_error("inconsistent LTO Unit splitting with llvm.type.test " + "or llvm.type.checked.load"); + return false; + } + // Normally if there are no users of the devirtualization intrinsics in the // module, this pass has nothing to do. But if we are exporting, we also need // to handle any users that appear only in the function summaries. |
