[NFC][LoopVectorize] Remove unused argument from fixupIVUsers

[david-arm]

The VectorHeader argument passed to fixupIVUsers is unused
and can be removed.

[llvmbot]

@llvm/pr-subscribers-llvm-transforms

Author: David Sherwood (david-arm)

Changes

The VectorHeader argument passed to fixupIVUsers is unused
and can be removed.

---

Full diff: https://github.com/llvm/llvm-project/pull/109789.diff

1 Files Affected:

• (modified) llvm/lib/Transforms/Vectorize/LoopVectorize.cpp (+4-6)

diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
index 9685e7d124b7d1..f678cafad7bf2d 100644
--- a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -547,8 +547,8 @@ class InnerLoopVectorizer {
   /// Set up the values of the IVs correctly when exiting the vector loop.
   void fixupIVUsers(PHINode *OrigPhi, const InductionDescriptor &II,
                     Value *VectorTripCount, Value *EndValue,
-                    BasicBlock *MiddleBlock, BasicBlock *VectorHeader,
-                    VPlan &Plan, VPTransformState &State);
+                    BasicBlock *MiddleBlock, VPlan &Plan,
+                    VPTransformState &State);
 
   /// Iteratively sink the scalarized operands of a predicated instruction into
   /// the block that was created for it.
@@ -2748,8 +2748,7 @@ InnerLoopVectorizer::createVectorizedLoopSkeleton(
 void InnerLoopVectorizer::fixupIVUsers(PHINode *OrigPhi,
                                        const InductionDescriptor &II,
                                        Value *VectorTripCount, Value *EndValue,
-                                       BasicBlock *MiddleBlock,
-                                       BasicBlock *VectorHeader, VPlan &Plan,
+                                       BasicBlock *MiddleBlock, VPlan &Plan,
                                        VPTransformState &State) {
   // There are two kinds of external IV usages - those that use the value
   // computed in the last iteration (the PHI) and those that use the penultimate
@@ -2960,8 +2959,7 @@ void InnerLoopVectorizer::fixVectorizedLoop(VPTransformState &State,
     for (const auto &Entry : Legal->getInductionVars())
       fixupIVUsers(Entry.first, Entry.second,
                    getOrCreateVectorTripCount(VectorLoop->getLoopPreheader()),
-                   IVEndValues[Entry.first], LoopMiddleBlock,
-                   VectorLoop->getHeader(), Plan, State);
+                   IVEndValues[Entry.first], LoopMiddleBlock, Plan, State);
   }
 
   // Fix live-out phis not already fixed earlier.

[MDevereau]

If there's no unused argument in fixupIVUsers, then there's no argument from me.

[fhahn]

LGTM thanks