From 452e2627dc1de4fb5a2b1c9ac999f1b3396f82c7 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 28 Feb 2009 18:12:41 +0000
Subject: [PATCH] reject 0 element vectors with: @a = internal constant void
 bitcast(<0 x i8> <> to void)                                      ^

Fixes PR3685


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65698 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/AsmParser/LLParser.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index abddc59bde1..85b4966a7bd 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -1262,6 +1262,8 @@ bool LLParser::ParseArrayVectorType(PATypeHolder &Result, bool isVector) {
     return true;
   
   if (isVector) {
+    if (Size == 0)
+      return Error(SizeLoc, "zero element vector is illegal");
     if ((unsigned)Size != Size)
       return Error(SizeLoc, "size too large for vector");
     if (!EltTy->isFloatingPoint() && !EltTy->isInteger())