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

diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index abddc59bde1549586ae6e6342a20248df846ab7b..85b4966a7bd7f5260c4345fcdfbd0911b935e80c 100644 (file)
--- 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())