From fc2a3c98e959be27e87d8b09b6579fc4fb0381d8 Mon Sep 17 00:00:00 2001
From: Filipe Cabecinhas <me@filcab.net>
Date: Sun, 5 Jun 2016 18:43:26 +0000
Subject: [BitCode] Diagnose GEPs with no indices

llvm-svn: 271849
---
 llvm/lib/Bitcode/Reader/BitcodeReader.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')

diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 91eb3f603f2..c66b60681e5 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -3090,6 +3090,9 @@ std::error_code BitcodeReader::parseConstants() {
         return error("Explicit gep operator type does not match pointee type "
                      "of pointer operand");
 
+      if (Elts.size() < 1)
+        return error("Invalid gep with no operands");
+
       ArrayRef<Constant *> Indices(Elts.begin() + 1, Elts.end());
       V = ConstantExpr::getGetElementPtr(PointeeType, Elts[0], Indices,
                                          BitCode ==
-- 
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