[llvm-bugs] Issue 3661 in oss-fuzz: llvm/clang-proto-fuzzer: Null-dereference READ in llvm::SCEV::getType

[k… via monorail via llvm-bugs]

Comment #2 on issue 3661 by kcc at google.com: llvm/clang-proto-fuzzer:  
Null-dereference READ in llvm::SCEV::getType
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3661#c2

C++ reproducer:

void foo(int *a) {
   while (1) {
     a[60] = ((1 + a[60]) + a[0]);
     while ((a[60] + a[0])) {
       a[0] = (a[0] + 1);
     }
   }
}

% clang -cc1 -triple x86_64-unknown-linux-gnu  -O2  -emit-obj z.cc

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