Forums - About Optimization Level

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About Optimization Level
Join Date: 28 Sep 13
Posts: 47
Posted: Wed, 2013-10-09 06:23

Hello everyone,

I need some hints to use this compiler. I use gcc 4.8 and clang3.3 to build my code with -Ofast level, and get the same and correct result.

If I use this snapdragon LLVM compiler 3.3.1 with -O1 & -O2 still can get correct result, but if I use -O3 or -Ofast will get totally wrong result.

I turn on the warning message suggested by user guide when porting code from gcc to this compiler. I did not get any warning.

Could anyone help me or give me some suggestions to know how to debug it?

Thanks a lot!!!


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