[LLVMdev] Questions on Parallelism and Data Dependence Analysis

[Wenzhi Tao]

Hi, I have two questions about llvm, and expect your reply very much.

1. Is there any plan of llvm to support Thread-Level Parallelism by using OpenMP, MPI, pthread or llvm-defined directives?
    If automatic parallelism exploring is very hard, what is the key problem? We can't get the precise data dependence
    information at compile-time?

2. Can I use the functions provided by llvm to get the real data dependence(Read After Write) info on basic block level directly?
   In other words, can I get the task graph(node: task viewed as basic block or more coarse grain, edge: real data dependence) 
   from sequential program using llvm to explore task-level parallelism by some proposed task scheduling algorithm?

thanks.

2008-12-25 



Wenzhi Tao 
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