search for: processinternalglob

Hi all, I had a look at the interprocedural optimizer. In my opinion the routine 'GlobalOpt::ProcessInternalGlobal' is a little bit to conservative. It removes global variables if the only routine using this variable is main. Typically this condition is valid only for very few global variables. Here is a code snippet containing the test before the transformation: file: llvm\lib\Transforms\IPO\GlobalOpt.c...

Hi Sundeep, I am also interested in the load-store lifting transformation. For static globals as-in your example, the transformation in general would rely on a better static global aliasing information that is currently in review http://reviews.llvm.org/D10059 For non-static globals, one problem with loop-based analysis alone is that in a popular embedded benchmark suite, you get serious gains