Do extra parentheses have an impact on performance?

Question

I have a program in C, that uses lots of mathematical calculations, At some places during calculation the expression has many redundant parenthesis and braces

eg: ((x*y)+(((z*c))))

Does It degrade the performance ? Should we avoid it?

Answer 1

No, this shouldn't affect execution time since the expression will be simplified by the compiler.

It might have a minute effect on compilation time but note that word "minute" - it's doubtful you'd even notice.

Far more of an effect would be any developer reading that code. The superfluous parentheses may make it harder to understand or it may delay them a little while they curse the coder that inflicted such rubbish on them :-)