Thanks! In fact, I should ask how to deal with idiom (such as reduction, induction) recognition for virtual defs/uses.
Jiahua 2007/2/12, Daniel Berlin <[EMAIL PROTECTED]>:
On 2/12/07, Jiahua He <[EMAIL PROTECTED]> wrote: > Hi, > > I am reading the code of autovect branch and curious about how to deal > with the dependencies of virtual defs/uses. In the function > vect_analyze_scalar_cycles( ), I found the statement "Skip virtual > phi's. The data dependences that are associated with virtual defs/uses > ( i.e., memory accesses) are analyzed elsewhere." But where is the > code? I tried to search for "vect_induction_def" and > "vect_reduction_def" and found that they are not used to assign > elsewhere. Is the analysis not implemented yet? Thanks in advance! They show up as data references because of tree-data-reference.c marking them. At lets, that's how other linear loop transforms handles it. Not sure about how vectorizer deals with it specifically > > Jiahua >
