[PATCH] D49578: [libFuzzer] Handle unstable edges by poisoning unstable edges
Max Moroz via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jul 26 10:01:03 PDT 2018
Dor1s added inline comments.
================
Comment at: lib/fuzzer/FuzzerDriver.cpp:627
+ Options.HandleUnstable =
+ static_cast<HandleUnstableOptions>(Flags.handle_unstable);
Options.DumpCoverage = Flags.dump_coverage;
----------------
Dor1s wrote:
> morehouse wrote:
> > This cast looks odd since we're comparing int to enum without a cast right before this. Probably just do implicit cast.
> That's what I though initially, but surprisingly, implicit cast doesn't work in that direction, only from enum to an integer!
```
$ cat test.cpp
enum Enum {
One = 1,
Two = 2
};
int main(int argc, char* argv[]) {
Enum E = argc;
return 0;
}
$ clang++ test.cpp
test.cpp:8:8: error: cannot initialize a variable of type 'Enum' with an lvalue of type 'int'
Enum E = argc;
^ ~~~~
1 error generated.
```
https://reviews.llvm.org/D49578
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