[PATCH] D80787: [VPlan] Support extracting lanes for defs managed in VPTransformState.
Florian Hahn via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 3 04:21:32 PDT 2020
This revision was automatically updated to reflect the committed changes.
Closed by commit rG211596c94e92: [VPlan] Support extracting lanes for defs managed in VPTransformState. (authored by fhahn).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D80787/new/
https://reviews.llvm.org/D80787
Files:
llvm/lib/Transforms/Vectorize/VPlan.h
Index: llvm/lib/Transforms/Vectorize/VPlan.h
===================================================================
--- llvm/lib/Transforms/Vectorize/VPlan.h
+++ llvm/lib/Transforms/Vectorize/VPlan.h
@@ -270,10 +270,20 @@
return Callback.getOrCreateVectorValues(VPValue2Value[Def], Part);
}
- /// Get the generated Value for a given VPValue and given Part and Lane. Note
- /// that as per-lane Defs are still created by ILV and managed in its ValueMap
- /// this method currently just delegates the call to ILV.
+ /// Get the generated Value for a given VPValue and given Part and Lane.
Value *get(VPValue *Def, const VPIteration &Instance) {
+ // If the Def is managed directly by VPTransformState, extract the lane from
+ // the relevant part. Note that currently only VPInstructions and external
+ // defs are managed by VPTransformState. Other Defs are still created by ILV
+ // and managed in its ValueMap. For those this method currently just
+ // delegates the call to ILV below.
+ if (Data.PerPartOutput.count(Def)) {
+ auto *VecPart = Data.PerPartOutput[Def][Instance.Part];
+ // TODO: Cache created scalar values.
+ return Builder.CreateExtractElement(VecPart,
+ Builder.getInt32(Instance.Lane));
+ }
+
return Callback.getOrCreateScalarValue(VPValue2Value[Def], Instance);
}
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