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Fix a crash in the LL parser where it failed to validate that the pointer operand of a GEP was valid.

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This manifested as an assertion failure in +Asserts builds, and a hard crash in -Asserts builds.  Found by fuzzing the LL parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230934 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2015-03-02 05:25:06 +00:00
parent 0c7c98a27d
commit dafab60b57
2 changed files with 13 additions and 0 deletions
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2
lib/AsmParser/LLParser.cpp
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@ -5458,6 +5458,8 @@ int LLParser::ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS) {
return true;
Type *PtrTy = Ptr->getType();
if (!isa<SequentialType>(PtrTy))
return Error(Loc, "pointer type is not valid");
if (VectorType *VT = dyn_cast<VectorType>(PtrTy))
PtrTy = VT->getElementType();
if (Ty != cast<SequentialType>(PtrTy)->getElementType())