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BBVectorize: Use TTI->getAddressComputationCost

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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!

llvm-svn: 174743
This commit is contained in:
Hal Finkel 2013-02-08 21:13:39 +00:00
parent d00b56718d
commit 2e1d39a40e
1 changed files with 5 additions and 0 deletions
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5
lib/Transforms/Vectorize/BBVectorize.cpp
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@ -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;