why would the optimization ignore the if statement when function has warning -Wreturn-type?

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Peter Schneider
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why would the optimization ignore the if statement when function has warning -Wreturn-type?
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(stackoverflow.com/users/16343042/%e9%99%88%e6%b3%bd%e9%9c%96)陈泽霖
(stackoverflow.com/users/5740428/jan-schultke)Jan Schultke
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(stackoverflow.com/users/5910058/jesper-juhl)Jesper Juhl
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c++ compiler-optimization undefined-behavior optimization assembly



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Tags:
c++
compiler-optimization
undefined-behavior
optimization
assembly