Re: [Tinycc-devel] add tcc uninitialized variable warning

[Charles Anthony]

On Thu, Jun 5, 2014 at 2:15 PM, David Mertens <address@hidden> wrote:

Hello jiang,

However, this will only impose a speed penalty on the compiler, it will not make it any faster. If you decide to try to implement it, you must write benchmarks showing how much slower tcc will run for some important compilation targets. Take a large project, such as Awk, and see how much slower it takes to compile with these warnings implemented. See how much more memory it will consume. If the numbers involve a negligible change, you might get buy-in. (Note: negligible is in the eye of the beholder. A 1% slow-down may be too much.)

Also, tools already exist for this issue (for example see cppcheck on github). These tools do a excellent job of detecting uninitialized variables, plus many other checks. Using the tool in conjunction with tcc is likely a better approach.

-- Charles