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[TargetTransformInfo, API] Add a list of operands to TTI::getUserCost

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The changes are a result of discussion of https://reviews.llvm.org/D33685.
It solves the following problem:

1. We can inform getGEPCost about simplified indices to help it with
   calculating the cost. But getGEPCost does not take into account the
   context which GEPs are used in.
2. We have getUserCost which can take the context into account but we cannot
   inform about simplified indices.

With the changes getUserCost will have access to additional information
as getGEPCost has.

The one parameter getUserCost is also provided.

Differential Revision: https://reviews.llvm.org/D34057

llvm-svn: 306674
This commit is contained in:
Evgeny Astigeevich
2017-06-29 13:42:12 +00:00
parent a046ef4c26
commit 70ed78e504
5 changed files with 32 additions and 13 deletions
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5
llvm/lib/Analysis/TargetTransformInfo.cpp
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@@ -89,8 +89,9 @@ TargetTransformInfo::getEstimatedNumberOfCaseClusters(const SwitchInst &SI,
return TTIImpl->getEstimatedNumberOfCaseClusters(SI, JTSize);
}
int TargetTransformInfo::getUserCost(const User *U) const {
int Cost = TTIImpl->getUserCost(U);
int TargetTransformInfo::getUserCost(const User *U,
ArrayRef<const Value *> Operands) const {
int Cost = TTIImpl->getUserCost(U, Operands);
assert(Cost >= 0 && "TTI should not produce negative costs!");
return Cost;
}