[LLVMbugs] [Bug 17744] New: SLP Vectorizer: need to support loop-aware cost model

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17744

            Bug ID: 17744
           Summary: SLP Vectorizer: need to support loop-aware cost model
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Loop Optimizer
          Assignee: unassignedbugs at nondot.org
          Reporter: nrotem at apple.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

We vectorize code in multiple basic blocks.  Some of the basic blocks are
inside loops. This means that some code is executed more frequently and the
cost model should take this into account.

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