Add support for comdats with names larger than 256 characters.

llvm-svn: 226012

1 files changed, 4 insertions, 2 deletions

diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index a96e866ed2c..5e8c64ee9cd 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -549,11 +549,13 @@ static unsigned getEncodedComdatSelectionKind(const Comdat &C) {
 }
 
 static void writeComdats(const ValueEnumerator &VE, BitstreamWriter &Stream) {
-  SmallVector<uint8_t, 64> Vals;
+  SmallVector<uint16_t, 64> Vals;
   for (const Comdat *C : VE.getComdats()) {
     // COMDAT: [selection_kind, name]
     Vals.push_back(getEncodedComdatSelectionKind(*C));
-    Vals.push_back(C->getName().size());
+    size_t Size = C->getName().size();
+    assert(isUInt<16>(Size));
+    Vals.push_back(Size);
     for (char Chr : C->getName())
       Vals.push_back((unsigned char)Chr);
     Stream.EmitRecord(bitc::MODULE_CODE_COMDAT, Vals, /*AbbrevToUse=*/0);