[PATCH] [OPENMP] Loop collapsing and initial codegen for 'omp simd' directive

[Alexey Bataev]

There will be a separate patch for lastprivate variables - the codegen for lastprivates  is very similar to codegen for privates and firstprivates. I'll prepare it as soon as codegen for privates and firstprivates is approved and committed.

http://reviews.llvm.org/D5184