[LV] Remove reference of PHI from comment, they are not recorded (NFC).

The comment incorrectly states that the PHI is recorded. That's not
accurate, only the recipe for the incoming value is recorded.

Suggested post-commit for 4ba8720f8844.

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 9337224..f1cf5c9 100644 (file)
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -8900,11 +8900,10 @@ VPRecipeBuilder::tryToCreateWidenRecipe(Instruction *Instr,
              Phi->getIncomingValueForBlock(OrigLoop->getLoopPreheader()));
       VPValue *StartV = Operands[0];
 
-      // Record the PHI and the incoming value from the backedge, so we can add
-      // the incoming value from the backedge after all recipes have been
-      // created.
       auto *PhiRecipe = new VPWidenPHIRecipe(Phi, RdxDesc, *StartV);
       PhisToFix.push_back(PhiRecipe);
+      // Record the incoming value from the backedge, so we can add the incoming
+      // value from the backedge after all recipes have been created.
       recordRecipeOf(cast<Instruction>(
           Phi->getIncomingValueForBlock(OrigLoop->getLoopLatch())));
       return toVPRecipeResult(PhiRecipe);