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    Question :
    People claim that optimizing compilers are good and that we no longer have to write things in assembler for speed
    Category C Interview Questions
    Rating (0.3) By 9 users
    Added on 11/17/2011
    Views 206
    Rate it!

    People claim that optimizing compilers are good and that we no longer have to write things in assembler for speed, but my compiler can't even replace i/=2 with a shift.

    Was i signed or unsigned? If it was signed, a shift is not equivalent (hint: think about the result if i is negative and odd), so the compiler was correct not to use it.

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