Hi, Can someone tell me how to obtain the following: 1) Given a rtx, find out if it is an induction variable. 2) For an induction variable, find all the loop nest 3) For each loopnest, find the corresponding upper and lower bounds (compile-time) 4) For an induction variables, find the increment/decrement value
I tried using the "iv_analysis_init(loop)", "iv_analyze()" and "iv_iv_analysis_done()". However, since I am calling these functions later in the stage (just before register allocation), they give me ICE. Any clue? Aliasing: 5) Given two mem-rtx "a" and "b" find if they alias to each other. Assume that "a" and "b" represent programmer defined arrays which are never assigned directly. I looked at the code of alias.c, but the interfaces are not clear to me as to how they should be used to get what I want. regards, Raj
