[PATCH] D137567: [SLP][NFC] Restructure getInsertIndex
krishna chaitanya sankisa via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Nov 7 09:37:39 PST 2022
skc7 created this revision.
skc7 added reviewers: ABataev, bcahoon.
Herald added subscribers: vporpo, arphaman, hiraditya.
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skc7 requested review of this revision.
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Fix getInsertIndex to correctly cast to FixedVectorType.
This is required because insertElement instructions can use scalable vectors aswell.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D137567
Files:
llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
Index: llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
===================================================================
--- llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -291,12 +291,13 @@
int Index = Offset;
if (const auto *IE = dyn_cast<InsertElementInst>(InsertInst)) {
if (const auto *CI = dyn_cast<ConstantInt>(IE->getOperand(2))) {
- auto *VT = cast<FixedVectorType>(IE->getType());
- if (CI->getValue().uge(VT->getNumElements()))
- return None;
- Index *= VT->getNumElements();
- Index += CI->getZExtValue();
- return Index;
+ if (const auto *VT = dyn_cast<FixedVectorType>(IE->getType())) {
+ if (CI->getValue().uge(VT->getNumElements()))
+ return None;
+ Index *= VT->getNumElements();
+ Index += CI->getZExtValue();
+ return Index;
+ }
}
return None;
}
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