summaryrefslogtreecommitdiffstats
path: root/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
-rw-r--r--llvm/lib/Bitcode/Reader/BitcodeReader.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 57b03e80fa6..23876ffcb99 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -4347,6 +4347,12 @@ Expected<std::string> BitcodeReader::parseIdentificationBlock() {
// We expect a number of well-defined blocks, though we don't necessarily
// need to understand them all.
while (true) {
+ // This loop iterates at the top-level: since there is no enclosing block
+ // we need to make sure we aren't at the end of the stream before calling
+ // advance, otherwise we'll get an error.
+ if (Stream.AtEndOfStream())
+ return Error::success();
+
BitstreamEntry Entry = Stream.advance();
switch (Entry.Kind) {
case BitstreamEntry::Error:
OpenPOWER on IntegriCloud