I am using working on adding a few interprocedural data flow analysis passes on GCC 4.3.0 for my project. In the initialization pass, I collect all the required analysis information for each cgraph node in a data structure, and push it in VEC (with heap allocation). Then in the next passes meant for performing AVE, PAV, RD, PRE and other analyses, I use this VEC to retrieve information for each cgraph node. However, due to some reasons, I am getting all garbage values for some functions while making gcc (eg. while compiling function bid128_add.c) I retrieved the VEC information just after pushing in the initialization pass, and it valid. However, when I try to retrieve values from the VEC in the other passes, I get garbage values. I even made sure that all the other analyses passes do nothing but to only print the VEC values, so that there is no question of modification of the VEC values. However I still get the garbage values. Has anyone else faced such a problem with VEC? What could possibly be going wrong when the values pushed in the VEC are correct, but they get mangled in between the passes? (I tried using gc instead of heap, it doesnt work) Any suggestions/ pointers would be highly appreciated. With Regards Prashant Singh Rawat Research Fellow, GRC, IIT Bombay. -- Prashant Singh Rawat
