[llvm] 9dde514 - [NFC] Remove shadowed variable in InnerLoopVectorizer::createInductionVariable

[David Sherwood via llvm-commits]

Author: David Sherwood
Date: 2021-06-29T14:34:30+01:00
New Revision: 9dde51416209a5552156384b9c2b08b676818d70

URL: https://github.com/llvm/llvm-project/commit/9dde51416209a5552156384b9c2b08b676818d70
DIFF: https://github.com/llvm/llvm-project/commit/9dde51416209a5552156384b9c2b08b676818d70.diff

LOG: [NFC] Remove shadowed variable in InnerLoopVectorizer::createInductionVariable

Avoid creating a IRBuilder stack variable with the same name as the
class member.

Added: 
    

Modified: 
    llvm/lib/Transforms/Vectorize/LoopVectorize.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index f99352a3f075..c79c57cb2bdb 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -3071,7 +3071,13 @@ PHINode *InnerLoopVectorizer::createInductionVariable(Loop *L, Value *Start,
   if (!Latch)
     Latch = Header;
 
-  IRBuilder<> Builder(&*Header->getFirstInsertionPt());
+  // Set the Builder to a valid Block pointer as the existing one could get
+  // deleted below.
+  Builder.SetInsertPoint(&*LoopVectorBody->getFirstInsertionPt());
+
+  IRBuilder<>::InsertPointGuard Guard(Builder);
+  Builder.SetInsertPoint(&*Header->getFirstInsertionPt());
+
   Instruction *OldInst = getDebugLocFromInstOrOperands(OldInduction);
   setDebugLocFromInst(Builder, OldInst);
   auto *Induction = Builder.CreatePHI(Start->getType(), 2, "index");