Wherein I propose that C++ initialize all stack variables to zero, preventing ~10% of CVEs.
Cost: none.
@jfbastien I’ve seen reports on this change in multiple compilers and it never stops blowing my mind a bit that you sometimes see a perf win, despite it making some degree of sense.
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How does it make sense? I fail to see how this is not simply a very weird case of missed optimization, given that the compiler was free to compile the code into something that zero-initializes stack variables earlier anyway (because any use of them would be undefined behaviour).
