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author | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-07-12 19:16:02 +0000 |
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committer | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-07-12 19:16:02 +0000 |
commit | c0a11edba6ea46c782672ab3fb4e4ab3dc267a22 (patch) | |
tree | dfd8a80460e3764c602d6e8df3e60176dab3f136 /include | |
parent | ec1170615515081135ea324e545b57c9503cd574 (diff) | |
download | external_llvm-c0a11edba6ea46c782672ab3fb4e4ab3dc267a22.zip external_llvm-c0a11edba6ea46c782672ab3fb4e4ab3dc267a22.tar.gz external_llvm-c0a11edba6ea46c782672ab3fb4e4ab3dc267a22.tar.bz2 |
TargetTransformInfo: address calculation parameter for gather/scather
Address calculation for gather/scather in vectorized code can incur a
significant cost making vectorization unbeneficial. Add infrastructure to add
cost.
Tests and cost model for targets will be in follow-up commits.
radar://14351991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186187 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
-rw-r--r-- | include/llvm/Analysis/TargetTransformInfo.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/llvm/Analysis/TargetTransformInfo.h b/include/llvm/Analysis/TargetTransformInfo.h index eb29e34..b8a44b5 100644 --- a/include/llvm/Analysis/TargetTransformInfo.h +++ b/include/llvm/Analysis/TargetTransformInfo.h @@ -339,7 +339,11 @@ public: /// merged into the instruction indexing mode. Some targets might want to /// distinguish between address computation for memory operations on vector /// types and scalar types. Such targets should override this function. - virtual unsigned getAddressComputationCost(Type *Ty) const; + /// The 'IsComplex' parameter is a hint that the address computation is likely + /// to involve multiple instructions and as such unlikely to be merged into + /// the address indexing mode. + virtual unsigned getAddressComputationCost(Type *Ty, + bool IsComplex = false) const; /// @} |