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[LV] Remove unused configuration option #82955

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Merged
merged 1 commit into from
Feb 28, 2024
Merged

[LV] Remove unused configuration option #82955

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9 changes: 1 addition & 8 deletions llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -315,12 +315,6 @@ static cl::opt<bool> EnableLoadStoreRuntimeInterleave(
cl::desc(
"Enable runtime interleaving until load/store ports are saturated"));

/// Interleave small loops with scalar reductions.
static cl::opt<bool> InterleaveSmallLoopScalarReduction(
"interleave-small-loop-scalar-reduction", cl::init(false), cl::Hidden,
cl::desc("Enable interleaving for loops with small iteration counts that "
"contain scalar reductions to expose ILP."));

/// The number of stores in a loop that are allowed to need predication.
static cl::opt<unsigned> NumberOfStoresToPredicate(
"vectorize-num-stores-pred", cl::init(1), cl::Hidden,
Expand Down Expand Up @@ -5477,8 +5471,7 @@ LoopVectorizationCostModel::selectInterleaveCount(ElementCount VF,

// If there are scalar reductions and TTI has enabled aggressive
// interleaving for reductions, we will interleave to expose ILP.
if (InterleaveSmallLoopScalarReduction && VF.isScalar() &&
AggressivelyInterleaveReductions) {
if (VF.isScalar() && AggressivelyInterleaveReductions) {
LLVM_DEBUG(dbgs() << "LV: Interleaving to expose ILP.\n");
// Interleave no less than SmallIC but not as aggressive as the normal IC
// to satisfy the rare situation when resources are too limited.
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/PowerPC/interleave_IC.ll
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@@ -1,5 +1,5 @@
; RUN: opt < %s -passes=loop-vectorize -S -mcpu=pwr9 -interleave-small-loop-scalar-reduction=true 2>&1 | FileCheck %s
; RUN: opt < %s -passes='loop-vectorize' -S -mcpu=pwr9 -interleave-small-loop-scalar-reduction=true 2>&1 | FileCheck %s
; RUN: opt < %s -passes=loop-vectorize -S -mcpu=pwr9 2>&1 | FileCheck %s
; RUN: opt < %s -passes='loop-vectorize' -S -mcpu=pwr9 2>&1 | FileCheck %s

; CHECK-LABEL: vector.body
; CHECK: load double, ptr
Expand Down