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-rw-r--r--contrib/llvm/lib/Support/MemoryBuffer.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/contrib/llvm/lib/Support/MemoryBuffer.cpp b/contrib/llvm/lib/Support/MemoryBuffer.cpp
index 98862e9..d09ef3a 100644
--- a/contrib/llvm/lib/Support/MemoryBuffer.cpp
+++ b/contrib/llvm/lib/Support/MemoryBuffer.cpp
@@ -57,7 +57,8 @@ void MemoryBuffer::init(const char *BufStart, const char *BufEnd,
/// CopyStringRef - Copies contents of a StringRef into a block of memory and
/// null-terminates it.
static void CopyStringRef(char *Memory, StringRef Data) {
- memcpy(Memory, Data.data(), Data.size());
+ if (!Data.empty())
+ memcpy(Memory, Data.data(), Data.size());
Memory[Data.size()] = 0; // Null terminate string.
}
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