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-rw-r--r--llvm/lib/Bitcode/Reader/BitcodeReader.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 74a5553ce6e..c874a84e0cb 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -3055,7 +3055,9 @@ std::error_code BitcodeReader::rememberAndSkipFunctionBodies() {
if (Stream.AtEndOfStream())
return error("Could not find function in stream");
- assert(SeenFirstFunctionBody);
+ if (!SeenFirstFunctionBody)
+ return error("Trying to materialize functions before seeing function blocks");
+
// An old bitcode file with the symbol table at the end would have
// finished the parse greedily.
assert(SeenValueSymbolTable);
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