[PATCH] D118445: [clang][AVR] Fix a crash in AVRTargetCodeGenInfo::getGlobalVarAddressSpace

[Ben Shi via Phabricator via cfe-commits]

benshi001 added a comment.

clang crashes when compling some c++ for for AVR targets with `clang++ test.cc --target=avr -mmcu=atmega328 -S`, and the test.cc is

  volatile char *p = (volatile char *) 0x4000;
  class test {
          int v;
  public:
          test(int q): v(q) {}
          int get(void) { return v; }
          ~test() { *p = v; }
  };
  test obj(4);

The crash information shows that there is an derefference of an empty pointer in `AVRTargetCodeGenInfo::getGlobalVarAddressSpace`


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D118445/new/

https://reviews.llvm.org/D118445