[Mlir-commits] [mlir] [mlir][ArmSME] Lower multi-tile stores to a single loop (PR #96187)
llvmlistbot at llvm.org
llvmlistbot at llvm.org
Thu Jun 20 06:17:12 PDT 2024
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-mlir
Author: Benjamin Maxwell (MacDue)
<details>
<summary>Changes</summary>
This adds a new pattern that can legalize a multi-tile transfer_write as a single store loop. This is done as part of type decomposition as at this level we know each tile write is disjoint, but that information is lost after decomposition (without analysis to reconstruct it).
Example (in pseudo-MLIR):
```
vector.transfer_write vector, dest[x, y], mask
: vector<[16]x[4]xf32>, memref<?x?xf32>
```
Is rewritten to:
```
for i in range (0, 4 * vscale) {
let sliceRow = i + tile_n.row * vscale; ─┐
let sliceCol = tile_n.col * vscale; |
slice = vector.extract tile_n[i] |
: vector<[4]xf32> from vector<[16]x[4]xf32> |
slice_mask = vector.extract mask[sliceRow] |- Repeated 4x for
: vector<[4]xi1> from vector<[16]x[4]xi1> | all tiles in
vector.transfer_write | [16]x[4]
slice, dest[x + sliceRow, y + sliceCol], slice_mask |
: vector<[4]xf32>, memref<?x?xf32> ┘
}
```
---
Full diff: https://github.com/llvm/llvm-project/pull/96187.diff
3 Files Affected:
- (modified) mlir/lib/Dialect/ArmSME/Transforms/VectorLegalization.cpp (+130-3)
- (modified) mlir/test/Dialect/ArmSME/vector-legalization.mlir (+63-6)
- (modified) mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/multi-tile-matmul.mlir (+2-1)
``````````diff
diff --git a/mlir/lib/Dialect/ArmSME/Transforms/VectorLegalization.cpp b/mlir/lib/Dialect/ArmSME/Transforms/VectorLegalization.cpp
index b595c6dd8a684..426cbfea12374 100644
--- a/mlir/lib/Dialect/ArmSME/Transforms/VectorLegalization.cpp
+++ b/mlir/lib/Dialect/ArmSME/Transforms/VectorLegalization.cpp
@@ -19,6 +19,7 @@
#include "mlir/Dialect/Func/IR/FuncOps.h"
#include "mlir/Dialect/Func/Transforms/OneToNFuncConversions.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
+#include "mlir/Dialect/SCF/IR/SCF.h"
#include "mlir/Dialect/SCF/Transforms/Patterns.h"
#include "mlir/Dialect/Utils/IndexingUtils.h"
#include "mlir/Transforms/OneToNTypeConversion.h"
@@ -373,6 +374,129 @@ struct LegalizeTransferWriteOpsByDecomposition
}
};
+/// Legalize a multi-tile transfer_write as a single store loop. This is done as
+/// part of type decomposition as at this level we know each tile write is
+/// disjoint, but that information is lost after decomposition (without
+/// static analysis).
+///
+/// Example (in pseudo-MLIR):
+///
+/// ```
+/// vector.transfer_write vector, dest[x, y], mask
+/// : vector<[16]x[4]xf32>, memref<?x?xf32>
+/// ```
+/// Is rewritten to:
+/// ```
+/// for i in range (0, 4 * vscale) {
+/// let sliceRow = i + tile_n.row * vscale; ─┐
+/// let sliceCol = tile_n.col * vscale; |
+/// slice = vector.extract tile_n[i] |
+/// : vector<[4]xf32> from vector<[16]x[4]xf32> |
+/// slice_mask = vector.extract mask[sliceRow] |- Repeated 4x for
+/// : vector<[4]xi1> from vector<[16]x[4]xi1> | all tiles in
+/// vector.transfer_write | [16]x[4]
+/// slice, dest[x + sliceRow, y + sliceCol], slice_mask |
+/// : vector<[4]xf32>, memref<?x?xf32> ┘
+/// }
+/// ```
+struct LegalizeMultiTileTransferWriteAsStoreLoop
+ : public OneToNOpConversionPattern<vector::TransferWriteOp> {
+ using OneToNOpConversionPattern::OneToNOpConversionPattern;
+
+ LogicalResult
+ matchAndRewrite(vector::TransferWriteOp writeOp, OpAdaptor adaptor,
+ OneToNPatternRewriter &rewriter) const override {
+ if (writeOp.hasPureTensorSemantics())
+ return rewriter.notifyMatchFailure(writeOp,
+ "tensor semantics are unsupported");
+
+ auto permutationMap = writeOp.getPermutationMap();
+ if (!permutationMap.isPermutation())
+ return rewriter.notifyMatchFailure(writeOp,
+ kMatchFailureNonPermutationMap);
+
+ bool transposed = !permutationMap.isIdentity();
+ if (transposed)
+ return rewriter.notifyMatchFailure(writeOp, "transpose unsupported");
+
+ auto vectorType = writeOp.getVectorType();
+ if (!isMultipleOfSMETileVectorType(vectorType))
+ return rewriter.notifyMatchFailure(writeOp,
+ kMatchFailureNotSMETileTypeMultiple);
+
+ auto mask = writeOp.getMask();
+ if (!isSupportedMaskOp(mask) || (mask && (vectorType.getDimSize(0) > 16 ||
+ vectorType.getDimSize(1) > 16)))
+ return rewriter.notifyMatchFailure(writeOp,
+ kMatchFailureUnsupportedMaskOp);
+
+ auto loc = writeOp.getLoc();
+ auto vscale = rewriter.create<vector::VectorScaleOp>(loc);
+ auto createVscaleMultiple = [&](int64_t multiplier) {
+ return rewriter.create<arith::MulIOp>(
+ loc, vscale,
+ rewriter.create<arith::ConstantIndexOp>(loc, multiplier));
+ };
+
+ // Get SME tile and slice types.
+ auto smeTileType = getSMETileTypeForElement(vectorType.getElementType());
+ auto minTileSlices = smeTileType.getDimSize(0);
+ VectorType sliceMaskType =
+ VectorType::get(minTileSlices, rewriter.getI1Type(), true);
+
+ // Create loop over all tile slices.
+ auto lowerBound = rewriter.create<arith::ConstantIndexOp>(loc, 0);
+ auto upperBound = createVscaleMultiple(minTileSlices);
+ auto step = rewriter.create<arith::ConstantIndexOp>(loc, 1);
+ auto storeLoop =
+ rewriter.create<scf::ForOp>(loc, lowerBound, upperBound, step);
+ rewriter.setInsertionPointToStart(storeLoop.getBody());
+
+ // For each tile sub-tile of the multi-tile `vectorType`.
+ auto inputSMETiles = adaptor.getVector();
+ auto inductionVar = storeLoop.getInductionVar();
+ for (auto [index, smeTile] : llvm::enumerate(
+ decomposeToSMETiles(rewriter, vectorType, smeTileType))) {
+ // The coordinates of the tile within `vectorType`.
+ auto tileRow = createVscaleMultiple(smeTile.row);
+ auto tileCol = createVscaleMultiple(smeTile.col);
+
+ // The current slice of `vectorType` we are processing.
+ auto sliceIndex =
+ rewriter.create<arith::AddIOp>(loc, tileRow, inductionVar);
+
+ // Where in the destination memref the current slice will be stored.
+ auto storeRow = rewriter.create<arith::AddIOp>(loc, sliceIndex,
+ writeOp.getIndices()[0]);
+ auto storeCol =
+ rewriter.create<arith::AddIOp>(loc, tileCol, writeOp.getIndices()[1]);
+
+ // Extract the mask for the current slice.
+ Value sliceMask = nullptr;
+ if (mask) {
+ sliceMask = rewriter.create<vector::ExtractOp>(
+ loc, mask, OpFoldResult(sliceIndex));
+ if (sliceMaskType != sliceMask.getType())
+ sliceMask = rewriter.create<vector::ScalableExtractOp>(
+ loc, sliceMaskType, sliceMask, smeTile.col);
+ }
+
+ // Extract and store the current slice slice.
+ Value tile = inputSMETiles[index];
+ auto slice = rewriter.create<vector::ExtractOp>(loc, tile, inductionVar);
+ rewriter.create<vector::TransferWriteOp>(
+ loc, slice, writeOp.getSource(), ValueRange{storeRow, storeCol},
+ AffineMapAttr::get(writeOp.getPermutationMap().dropResult(0)),
+ sliceMask,
+ rewriter.getBoolArrayAttr(
+ ArrayRef<bool>(writeOp.getInBoundsValues()).drop_front()));
+ }
+
+ rewriter.eraseOp(writeOp);
+ return success();
+ }
+};
+
//===----------------------------------------------------------------------===//
// ArmSME-specific fixup canonicalizations/folds
//===----------------------------------------------------------------------===//
@@ -663,9 +787,12 @@ struct VectorLegalizationPass
patterns.add<FoldExtractFromVectorOfSMELikeCreateMasks,
LiftIllegalVectorTransposeToMemory,
ConvertIllegalShapeCastOpsToTransposes>(context);
- // Note: High benefit to ensure masked outer products are lowered first.
- patterns.add<LegalizeMaskedVectorOuterProductOpsByDecomposition>(
- converter, context, 1024);
+ // Note: These two patterns are added with a high benefit to ensure:
+ // - Masked outer products are handled before unmasked ones
+ // - Multi-tile writes are lowered as a store loop (if possible)
+ patterns.add<LegalizeMaskedVectorOuterProductOpsByDecomposition,
+ LegalizeMultiTileTransferWriteAsStoreLoop>(converter, context,
+ /*benefit=*/1024);
patterns.add<LegalizeArithConstantOpsByDecomposition,
LegalizeVectorOuterProductOpsByDecomposition,
LegalizeTransferReadOpsByDecomposition,
diff --git a/mlir/test/Dialect/ArmSME/vector-legalization.mlir b/mlir/test/Dialect/ArmSME/vector-legalization.mlir
index f43ef1cce787c..70d2a06797a31 100644
--- a/mlir/test/Dialect/ArmSME/vector-legalization.mlir
+++ b/mlir/test/Dialect/ArmSME/vector-legalization.mlir
@@ -174,11 +174,17 @@ func.func @transfer_read_i16_scalable_8x16_masked(%src: memref<?x?xi16>, %dim0:
func.func @transfer_write_f16_scalable_16x8(%dest: memref<?x?xf16>, %vec: vector<[16]x[8]xf16>)
{
// CHECK-DAG: %[[C0:.*]] = arith.constant 0 : index
+ // CHECK-DAG: %[[C1:.*]] = arith.constant 1 : index
// CHECK-DAG: %[[C8:.*]] = arith.constant 8 : index
// CHECK-DAG: %[[VSCALE:.*]] = vector.vscale
// CHECK-DAG: %[[C8_VSCALE:.*]] = arith.muli %[[VSCALE]], %[[C8]] : index
- // CHECK-DAG: vector.transfer_write %[[TOP]], %[[DEST]][%[[C0]], %[[C0]]] {in_bounds = [true, true]} : vector<[8]x[8]xf16>, memref<?x?xf16>
- // CHECK-DAG: vector.transfer_write %[[BOTTOM]], %[[DEST]][%[[C8_VSCALE]], %[[C0]]] {in_bounds = [true, true]} : vector<[8]x[8]xf16>, memref<?x?xf16>
+ // CHECK-NEXT: scf.for %[[I:.*]] = %[[C0]] to %[[C8_VSCALE]] step %[[C1]] {
+ // CHECK-NEXT: %[[TOP_SLICE:.*]] = vector.extract %[[TOP]][%[[I]]] : vector<[8]xf16> from vector<[8]x[8]xf16>
+ // CHECK-NEXT: vector.transfer_write %[[TOP_SLICE]], %[[DEST]][%[[I]], %[[C0]]] {in_bounds = [true]} : vector<[8]xf16>, memref<?x?xf16>
+ // CHECK-NEXT: %[[BOTTOM_I:.*]] = arith.addi %[[C8_VSCALE]], %[[I]] : index
+ // CHECK-NEXT: %[[BOTOM_SLICE:.*]] = vector.extract %[[BOTTOM]][%[[I]]] : vector<[8]xf16> from vector<[8]x[8]xf16>
+ // CHECK-NEXT: vector.transfer_write %[[BOTOM_SLICE]], %[[DEST]][%[[BOTTOM_I]], %[[C0]]] {in_bounds = [true]} : vector<[8]xf16>, memref<?x?xf16>
+ // CHECK-NEXT: }
// CHECK-NEXT: return
%c0 = arith.constant 0 : index
vector.transfer_write %vec, %dest[%c0, %c0] {in_bounds = [true, true]} : vector<[16]x[8]xf16>, memref<?x?xf16>
@@ -201,6 +207,47 @@ func.func @transfer_write_i8_scalable_16x16_masked(%dest: memref<?x?xi8>, %vec:
// -----
+// CHECK-LABEL: @transfer_write_f32_scalable_8x8_masked(
+// CHECK-SAME: %[[DEST:[a-z0-9]+]]: memref<?x?xf32>,
+// CHECK-SAME: %[[DIM_0:[a-z0-9]+]]: index,
+// CHECK-SAME: %[[DIM_1:[a-z0-9]+]]: index,
+// CHECK-SAME: %[[TILE_0:[a-z0-9]+]]: vector<[4]x[4]xf32>,
+// CHECK-SAME: %[[TILE_1:[a-z0-9]+]]: vector<[4]x[4]xf32>,
+// CHECK-SAME: %[[TILE_2:[a-z0-9]+]]: vector<[4]x[4]xf32>,
+// CHECK-SAME: %[[TILE_3:[a-z0-9]+]]: vector<[4]x[4]xf32>)
+func.func @transfer_write_f32_scalable_8x8_masked(%dest: memref<?x?xf32>, %dim0: index, %dim1: index, %vec: vector<[8]x[8]xf32>)
+{
+ // CHECK-DAG: %[[C0:.*]] = arith.constant 0 : index
+ // CHECK-DAG: %[[C1:.*]] = arith.constant 1 : index
+ // CHECK-DAG: %[[C4:.*]] = arith.constant 4 : index
+ // CHECK-DAG: %[[VSCALE:.*]] = vector.vscale
+ // CHECK-DAG: %[[C4_VSCALE:.*]] = arith.muli %[[VSCALE]], %[[C4]] : index
+ // CHECK-DAG: %[[MASK:.*]] = vector.create_mask %[[DIM_0]], %[[DIM_1]] : vector<[8]x[8]xi1>
+ // CHECK-NEXT: scf.for %[[I:.*]] = %[[C0]] to %[[C4_VSCALE]] step %[[C1]] {
+ // CHECK-NEXT: %[[UPPER_SLICE_MASK:.*]] = vector.extract %[[MASK]][%[[I]]] : vector<[8]xi1> from vector<[8]x[8]xi1>
+ // CHECK-NEXT: %[[TILE_0_SLICE_MASK:.*]] = vector.scalable.extract %[[UPPER_SLICE_MASK]][0] : vector<[4]xi1> from vector<[8]xi1>
+ // CHECK-NEXT: %[[TILE_0_SLICE:.*]] = vector.extract %[[TILE_0]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_0_SLICE]], %[[DEST]][%[[I]], %[[C0]]], %[[TILE_0_SLICE_MASK]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: %[[TILE_1_SLICE_MASK:.*]] = vector.scalable.extract %[[UPPER_SLICE_MASK]][4] : vector<[4]xi1> from vector<[8]xi1>
+ // CHECK-NEXT: %[[TILE_1_SLICE:.*]] = vector.extract %[[TILE_1]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_1_SLICE]], %[[DEST]][%[[I]], %[[C4_VSCALE]]], %[[TILE_1_SLICE_MASK]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: %[[LOWER_SLICE_I:.*]] = arith.addi %[[C4_VSCALE]], %[[I]] : index
+ // CHECK-NEXT: %[[LOWER_SLICE_MASK:.*]] = vector.extract %[[MASK]][%[[LOWER_SLICE_I]]] : vector<[8]xi1> from vector<[8]x[8]xi1>
+ // CHECK-NEXT: %[[TILE_2_SLICE_MASK:.*]] = vector.scalable.extract %[[LOWER_SLICE_MASK]][0] : vector<[4]xi1> from vector<[8]xi1>
+ // CHECK-NEXT: %[[TILE_2_SLICE:.*]] = vector.extract %[[TILE_2]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_2_SLICE]], %[[DEST]][%[[LOWER_SLICE_I]], %[[C0]]], %[[TILE_2_SLICE_MASK]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: %[[TILE_3_SLICE_MASK:.*]] = vector.scalable.extract %[[LOWER_SLICE_MASK]][4] : vector<[4]xi1> from vector<[8]xi1>
+ // CHECK-NEXT: %[[TILE_3_SLICE:.*]] = vector.extract %[[TILE_3]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_3_SLICE:.*]], %[[DEST]][%[[LOWER_SLICE_I]], %[[C4_VSCALE]]], %[[TILE_3_SLICE_MASK]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: }
+ %c0 = arith.constant 0 : index
+ %mask = vector.create_mask %dim0, %dim1 : vector<[8]x[8]xi1>
+ vector.transfer_write %vec, %dest[%c0, %c0], %mask {in_bounds = [true, true]} : vector<[8]x[8]xf32>, memref<?x?xf32>
+ return
+}
+
+// -----
+
#transpose = affine_map<(d0, d1) -> (d1, d0)>
// CHECK-LABEL: @transpose_f32_scalable_4x16_via_read(
@@ -209,6 +256,7 @@ func.func @transfer_write_i8_scalable_16x16_masked(%dest: memref<?x?xi8>, %vec:
func.func @transpose_f32_scalable_4x16_via_read(%src: memref<?x?xf32>, %dest: memref<?x?xf32>)
{
// CHECK-DAG: %[[C0:.*]] = arith.constant 0 : index
+ // CHECK-DAG: %[[C1:.*]] = arith.constant 1 : index
// CHECK-DAG: %[[C4:.*]] = arith.constant 4 : index
// CHECK-DAG: %[[C8:.*]] = arith.constant 8 : index
// CHECK-DAG: %[[C12:.*]] = arith.constant 12 : index
@@ -221,10 +269,19 @@ func.func @transpose_f32_scalable_4x16_via_read(%src: memref<?x?xf32>, %dest: me
// CHECK-DAG: %[[TILE_1:.*]] = vector.transfer_read %[[SRC]][%[[C0]], %[[C4_VSCALE]]], %[[PAD]] {in_bounds = [true, true], permutation_map = #{{.*}}} : memref<?x?xf32>, vector<[4]x[4]xf32>
// CHECK-DAG: %[[TILE_2:.*]] = vector.transfer_read %[[SRC]][%[[C0]], %[[C8_VSCALE]]], %[[PAD]] {in_bounds = [true, true], permutation_map = #{{.*}}} : memref<?x?xf32>, vector<[4]x[4]xf32>
// CHECK-DAG: %[[TILE_3:.*]] = vector.transfer_read %[[SRC]][%[[C0]], %[[C12_VSCALE]]], %[[PAD]] {in_bounds = [true, true], permutation_map = #{{.*}}} : memref<?x?xf32>, vector<[4]x[4]xf32>
- // CHECK-DAG: vector.transfer_write %[[TILE_0]], %[[DEST]][%[[C0]], %[[C0]]] {in_bounds = [true, true]} : vector<[4]x[4]xf32>, memref<?x?xf32>
- // CHECK-DAG: vector.transfer_write %[[TILE_1]], %[[DEST]][%[[C4_VSCALE]], %[[C0]]] {in_bounds = [true, true]} : vector<[4]x[4]xf32>, memref<?x?xf32>
- // CHECK-DAG: vector.transfer_write %[[TILE_2]], %[[DEST]][%[[C8_VSCALE]], %[[C0]]] {in_bounds = [true, true]} : vector<[4]x[4]xf32>, memref<?x?xf32>
- // CHECK-DAG: vector.transfer_write %[[TILE_3]], %[[DEST]][%[[C12_VSCALE]], %[[C0]]] {in_bounds = [true, true]} : vector<[4]x[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: scf.for %[[I:.*]] = %[[C0]] to %[[C4_VSCALE]] step %[[C1]] {
+ // CHECK-NEXT: %[[TILE_0_SLICE:.*]] = vector.extract %[[TILE_0]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_0_SLICE]], %[[DEST]][%[[I]], %[[C0]]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: %[[TILE_1_I:.*]] = arith.addi %[[C4_VSCALE]], %[[I]] : index
+ // CHECK-NEXT: %[[TILE_1_SLICE:.*]] = vector.extract %[[TILE_1]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_1_SLICE]], %[[DEST]][%[[TILE_1_I]], %[[C0]]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: %[[TILE_2_I:.*]] = arith.addi %[[C8_VSCALE]], %[[I]] : index
+ // CHECK-NEXT: %[[TILE_2_SLICE:.*]] = vector.extract %[[TILE_2]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_2_SLICE]], %[[DEST]][%[[TILE_2_I]], %[[C0]]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: %[[TILE_3_I:.*]] = arith.addi %[[C12_VSCALE]], %[[I]] : index
+ // CHECK-NEXT: %[[TILE_3_SLICE:.*]] = vector.extract %[[TILE_3]][%[[I]]] : vector<[4]xf32> from vector<[4]x[4]xf32>
+ // CHECK-NEXT: vector.transfer_write %[[TILE_3_SLICE]], %[[DEST]][%[[TILE_3_I]], %[[C0]]] {in_bounds = [true]} : vector<[4]xf32>, memref<?x?xf32>
+ // CHECK-NEXT: }
// CHECK-NEXT: return
%c0 = arith.constant 0 : index
%pad = arith.constant 0.0 : f32
diff --git a/mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/multi-tile-matmul.mlir b/mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/multi-tile-matmul.mlir
index ada744b322fe9..03a7d25cffa76 100644
--- a/mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/multi-tile-matmul.mlir
+++ b/mlir/test/Integration/Dialect/Linalg/CPU/ArmSME/multi-tile-matmul.mlir
@@ -1,7 +1,8 @@
// RUN: mlir-opt %s \
// RUN: -transform-interpreter -test-transform-dialect-erase-schedule \
// RUN: -one-shot-bufferize="bufferize-function-boundaries" -canonicalize \
-// RUN: -test-lower-to-arm-sme -test-lower-to-llvm | \
+// RUN: -test-lower-to-arm-sme -convert-vector-to-llvm="enable-arm-sve" \
+// RUN: -test-lower-to-llvm | \
// RUN: %mcr_aarch64_cmd \
// RUN: -e=main -entry-point-result=void \
// RUN: -march=aarch64 -mattr="+sve,+sme" \
``````````
</details>
https://github.com/llvm/llvm-project/pull/96187
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