[llvm] r174743 - BBVectorize: Use TTI->getAddressComputationCost

[Hal Finkel]

Author: hfinkel
Date: Fri Feb  8 15:13:39 2013
New Revision: 174743

URL: http://llvm.org/viewvc/llvm-project?rev=174743&view=rev
Log:
BBVectorize: Use TTI->getAddressComputationCost

This is a follow-up to the cost-model change in r174713 which splits
the cost of a memory operation between the address computation and the
actual memory access. In r174713, this cost is always added to the
memory operation cost, and so BBVectorize will do the same.

Currently, this new cost function is used only by ARM, and I don't
have any ARM test cases for BBVectorize. Assistance in generating some
good ARM test cases for BBVectorize would be greatly appreciated!

Modified:
    llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp

Modified: llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp?rev=174743&r1=174742&r2=174743&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/BBVectorize.cpp Fri Feb  8 15:13:39 2013
@@ -972,6 +972,11 @@ namespace {
           unsigned VCost = TTI->getMemoryOpCost(I->getOpcode(), VType,
                                                 BottomAlignment,
                                                 IAddressSpace);
+
+          ICost += TTI->getAddressComputationCost(aTypeI);
+          JCost += TTI->getAddressComputationCost(aTypeJ);
+          VCost += TTI->getAddressComputationCost(VType);
+
           if (VCost > ICost + JCost)
             return false;