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Feb 7, 2025
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[mlir][Vector] Generate poison vectors in vector.shape_cast lowering #125613

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[mlir][Vector] Generate poison vectors in vector.shape_cast lowering
dcaballe Feb 4, 2025
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dcaballe Feb 6, 2025
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dcaballe Feb 6, 2025
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15 changes: 5 additions & 10 deletions mlir/lib/Dialect/Vector/Transforms/LowerVectorShapeCast.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11,8 +11,8 @@
//
//===----------------------------------------------------------------------===//

#include "mlir/Dialect/Arith/IR/Arith.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/Dialect/UB//IR/UBOps.h"
#include "mlir/Dialect/Vector/IR/VectorOps.h"
#include "mlir/Dialect/Vector/Transforms/LoweringPatterns.h"
#include "mlir/Dialect/Vector/Transforms/VectorRewritePatterns.h"
Expand Down Expand Up @@ -73,8 +73,7 @@ class ShapeCastOpNDDownCastRewritePattern
SmallVector<int64_t> srcIdx(srcRank - 1, 0);
SmallVector<int64_t> resIdx(resRank, 0);
int64_t extractSize = sourceVectorType.getShape().back();
Value result = rewriter.create<arith::ConstantOp>(
loc, resultVectorType, rewriter.getZeroAttr(resultVectorType));
Value result = rewriter.create<ub::PoisonOp>(loc, resultVectorType);

// Compute the indices of each 1-D vector element of the source extraction
// and destination slice insertion and generate such instructions.
Expand Down Expand Up @@ -129,8 +128,7 @@ class ShapeCastOpNDUpCastRewritePattern
SmallVector<int64_t> srcIdx(srcRank, 0);
SmallVector<int64_t> resIdx(resRank - 1, 0);
int64_t extractSize = resultVectorType.getShape().back();
Value result = rewriter.create<arith::ConstantOp>(
loc, resultVectorType, rewriter.getZeroAttr(resultVectorType));
Value result = rewriter.create<ub::PoisonOp>(loc, resultVectorType);
for (int64_t i = 0; i < numElts; ++i) {
if (i != 0) {
incIdx(srcIdx, sourceVectorType, /*step=*/extractSize);
Expand Down Expand Up @@ -184,8 +182,7 @@ class ShapeCastOpRewritePattern : public OpRewritePattern<vector::ShapeCastOp> {
// within the source and result shape.
SmallVector<int64_t> srcIdx(srcRank, 0);
SmallVector<int64_t> resIdx(resRank, 0);
Value result = rewriter.create<arith::ConstantOp>(
loc, resultVectorType, rewriter.getZeroAttr(resultVectorType));
Value result = rewriter.create<ub::PoisonOp>(loc, resultVectorType);
for (int64_t i = 0; i < numElts; i++) {
if (i != 0) {
incIdx(srcIdx, sourceVectorType);
Expand Down Expand Up @@ -291,9 +288,7 @@ class ScalableShapeCastOpRewritePattern
auto extractionVectorType = VectorType::get(
{minExtractionSize}, sourceVectorType.getElementType(), {true});

Value result = rewriter.create<arith::ConstantOp>(
loc, resultVectorType, rewriter.getZeroAttr(resultVectorType));

Value result = rewriter.create<ub::PoisonOp>(loc, resultVectorType);
SmallVector<int64_t> srcIdx(srcRank, 0);
SmallVector<int64_t> resIdx(resRank, 0);

Expand Down
8 changes: 4 additions & 4 deletions mlir/test/Conversion/ConvertToSPIRV/vector-unroll.mlir
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Expand Up @@ -83,17 +83,17 @@ func.func @vaddi_reduction(%arg0 : vector<8xi32>, %arg1 : vector<8xi32>) -> (i32
// CHECK-LABEL: @transpose
// CHECK-SAME: (%[[ARG0:.+]]: vector<3xi32>, %[[ARG1:.+]]: vector<3xi32>)
func.func @transpose(%arg0 : vector<2x3xi32>) -> (vector<3x2xi32>) {
// CHECK: %[[CST:.*]] = arith.constant dense<0> : vector<2xi32>
// CHECK: %[[UB:.*]] = ub.poison : vector<2xi32>
// CHECK: %[[EXTRACT0:.*]] = vector.extract %[[ARG0]][0] : i32 from vector<3xi32>
// CHECK: %[[INSERT0:.*]]= vector.insert %[[EXTRACT0]], %[[CST]] [0] : i32 into vector<2xi32>
// CHECK: %[[INSERT0:.*]]= vector.insert %[[EXTRACT0]], %[[UB]] [0] : i32 into vector<2xi32>
// CHECK: %[[EXTRACT1:.*]] = vector.extract %[[ARG1]][0] : i32 from vector<3xi32>
// CHECK: %[[INSERT1:.*]] = vector.insert %[[EXTRACT1]], %[[INSERT0]][1] : i32 into vector<2xi32>
// CHECK: %[[EXTRACT2:.*]] = vector.extract %[[ARG0]][1] : i32 from vector<3xi32>
// CHECK: %[[INSERT2:.*]] = vector.insert %[[EXTRACT2]], %[[CST]] [0] : i32 into vector<2xi32>
// CHECK: %[[INSERT2:.*]] = vector.insert %[[EXTRACT2]], %[[UB]] [0] : i32 into vector<2xi32>
// CHECK: %[[EXTRACT3:.*]] = vector.extract %[[ARG1]][1] : i32 from vector<3xi32>
// CHECK: %[[INSERT3:.*]] = vector.insert %[[EXTRACT3]], %[[INSERT2]] [1] : i32 into vector<2xi32>
// CHECK: %[[EXTRACT4:.*]] = vector.extract %[[ARG0]][2] : i32 from vector<3xi32>
// CHECK: %[[INSERT4:.*]] = vector.insert %[[EXTRACT4]], %[[CST]] [0] : i32 into vector<2xi32>
// CHECK: %[[INSERT4:.*]] = vector.insert %[[EXTRACT4]], %[[UB]] [0] : i32 into vector<2xi32>
// CHECK: %[[EXTRACT5:.*]] = vector.extract %[[ARG1]][2] : i32 from vector<3xi32>
// CHECK: %[[INSERT5:.*]] = vector.insert %[[EXTRACT5]], %[[INSERT4]] [1] : i32 into vector<2xi32>
// CHECK: return %[[INSERT1]], %[[INSERT3]], %[[INSERT5]] : vector<2xi32>, vector<2xi32>, vector<2xi32>
Expand Down
12 changes: 6 additions & 6 deletions mlir/test/Dialect/Vector/vector-contract-to-matrix-intrinsics-transforms.mlir
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Expand Up @@ -14,15 +14,15 @@
// CHECK-SAME: %[[A:[a-zA-Z0-9]*]]: vector<2x4xf32>,
// CHECK-SAME: %[[B:[a-zA-Z0-9]*]]: vector<4x3xf32>,
// CHECK-SAME: %[[C:[a-zA-Z0-9]*]]: vector<2x3xf32>
// CHECK-DAG: %[[vcst:.*]] = arith.constant dense<0.000000e+00> : vector<8xf32>
// CHECK-DAG: %[[vcst_0:.*]] = arith.constant dense<0.000000e+00> : vector<12xf32>
// CHECK-DAG: %[[vcst_1:.*]] = arith.constant dense<0.000000e+00> : vector<2x3xf32>
// CHECK-DAG: %[[ub:.*]] = ub.poison : vector<8xf32>
// CHECK-DAG: %[[ub_0:.*]] = ub.poison : vector<12xf32>
// CHECK-DAG: %[[ub_1:.*]] = ub.poison : vector<2x3xf32>
// CHECK: %[[a0:.*]] = vector.extract %[[A]][0] : vector<4xf32> from vector<2x4xf32>
// CHECK: %[[a1:.*]] = vector.insert_strided_slice %[[a0]], %[[vcst]] {offsets = [0], strides = [1]} : vector<4xf32> into vector<8xf32>
// CHECK: %[[a1:.*]] = vector.insert_strided_slice %[[a0]], %[[ub]] {offsets = [0], strides = [1]} : vector<4xf32> into vector<8xf32>
// CHECK: %[[a2:.*]] = vector.extract %[[A]][1] : vector<4xf32> from vector<2x4xf32>
// CHECK: %[[a3:.*]] = vector.insert_strided_slice %[[a2]], %[[a1]] {offsets = [4], strides = [1]} : vector<4xf32> into vector<8xf32>
// CHECK: %[[b0:.*]] = vector.extract %[[B]][0] : vector<3xf32> from vector<4x3xf32>
// CHECK: %[[b1:.*]] = vector.insert_strided_slice %[[b0]], %[[vcst_0]] {offsets = [0], strides = [1]} : vector<3xf32> into vector<12xf32>
// CHECK: %[[b1:.*]] = vector.insert_strided_slice %[[b0]], %[[ub_0]] {offsets = [0], strides = [1]} : vector<3xf32> into vector<12xf32>
// CHECK: %[[b2:.*]] = vector.extract %[[B]][1] : vector<3xf32> from vector<4x3xf32>
// CHECK: %[[b3:.*]] = vector.insert_strided_slice %[[b2]], %[[b1]] {offsets = [3], strides = [1]} : vector<3xf32> into vector<12xf32>
// CHECK: %[[b4:.*]] = vector.extract %[[B]][2] : vector<3xf32> from vector<4x3xf32>
Expand All @@ -31,7 +31,7 @@
// CHECK: %[[b7:.*]] = vector.insert_strided_slice %[[b6]], %[[b5]] {offsets = [9], strides = [1]} : vector<3xf32> into vector<12xf32>
// CHECK: %[[mm1:.*]] = vector.matrix_multiply %[[a3]], %[[b7]] {lhs_columns = 4 : i32, lhs_rows = 2 : i32, rhs_columns = 3 : i32} : (vector<8xf32>, vector<12xf32>) -> vector<6xf32>
// CHECK: %[[mm2:.*]] = vector.extract_strided_slice %[[mm1]] {offsets = [0], sizes = [3], strides = [1]} : vector<6xf32> to vector<3xf32>
// CHECK: %[[mm3:.*]] = vector.insert %[[mm2]], %[[vcst_1]] [0] : vector<3xf32> into vector<2x3xf32>
// CHECK: %[[mm3:.*]] = vector.insert %[[mm2]], %[[ub_1]] [0] : vector<3xf32> into vector<2x3xf32>
// CHECK: %[[mm4:.*]] = vector.extract_strided_slice %[[mm1]] {offsets = [3], sizes = [3], strides = [1]} : vector<6xf32> to vector<3xf32>
// CHECK: %[[mm5:.*]] = vector.insert %[[mm4]], %[[mm3]] [1] : vector<3xf32> into vector<2x3xf32>
// CHECK: %[[mm6:.*]] = arith.addf %[[C]], %[[mm5]] : vector<2x3xf32>
Expand Down
41 changes: 20 additions & 21 deletions mlir/test/Dialect/Vector/vector-shape-cast-lowering-scalable-vectors.mlir
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Expand Up @@ -7,9 +7,9 @@
// CHECK-SAME: %[[arg0:.*]]: vector<2x1x[4]xi32>
func.func @i32_3d_to_1d_last_dim_scalable(%arg0: vector<2x1x[4]xi32>) -> vector<[8]xi32>
{
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0> : vector<[8]xi32>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<[8]xi32>
// CHECK-NEXT: %[[subvec0:.*]] = vector.extract %[[arg0]][0, 0] : vector<[4]xi32> from vector<2x1x[4]xi32>
// CHECK-NEXT: %[[res0:.*]] = vector.scalable.insert %[[subvec0]], %[[cst]][0] : vector<[4]xi32> into vector<[8]xi32>
// CHECK-NEXT: %[[res0:.*]] = vector.scalable.insert %[[subvec0]], %[[ub]][0] : vector<[4]xi32> into vector<[8]xi32>
// CHECK-NEXT: %[[subvec1:.*]] = vector.extract %[[arg0]][1, 0] : vector<[4]xi32> from vector<2x1x[4]xi32>
// CHECK-NEXT: %[[res1:.*]] = vector.scalable.insert %[[subvec1]], %[[res0]][4] : vector<[4]xi32> into vector<[8]xi32>
%flat = vector.shape_cast %arg0 : vector<2x1x[4]xi32> to vector<[8]xi32>
Expand All @@ -22,9 +22,9 @@ func.func @i32_3d_to_1d_last_dim_scalable(%arg0: vector<2x1x[4]xi32>) -> vector<
// CHECK-LABEL: i32_1d_to_3d_last_dim_scalable
// CHECK-SAME: %[[arg0:.*]]: vector<[8]xi32>
func.func @i32_1d_to_3d_last_dim_scalable(%arg0: vector<[8]xi32>) -> vector<2x1x[4]xi32> {
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0> : vector<2x1x[4]xi32>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<2x1x[4]xi32>
// CHECK-NEXT: %[[subvec0:.*]] = vector.scalable.extract %[[arg0]][0] : vector<[4]xi32> from vector<[8]xi32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[cst]] [0, 0] : vector<[4]xi32> into vector<2x1x[4]xi32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[ub]] [0, 0] : vector<[4]xi32> into vector<2x1x[4]xi32>
// CHECK-NEXT: %[[subvec1:.*]] = vector.scalable.extract %[[arg0]][4] : vector<[4]xi32> from vector<[8]xi32>
// CHECK-NEXT: %[[res1:.*]] = vector.insert %[[subvec1]], %[[res0]] [1, 0] : vector<[4]xi32> into vector<2x1x[4]xi32>
%unflat = vector.shape_cast %arg0 : vector<[8]xi32> to vector<2x1x[4]xi32>
Expand All @@ -37,9 +37,9 @@ func.func @i32_1d_to_3d_last_dim_scalable(%arg0: vector<[8]xi32>) -> vector<2x1x
// CHECK-LABEL: i8_2d_to_1d_last_dim_scalable
// CHECK-SAME: %[[arg0:.*]]: vector<4x[8]xi8>
func.func @i8_2d_to_1d_last_dim_scalable(%arg0: vector<4x[8]xi8>) -> vector<[32]xi8> {
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0> : vector<[32]xi8>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<[32]xi8>
// CHECK-NEXT: %[[subvec0:.*]] = vector.extract %[[arg0]][0] : vector<[8]xi8> from vector<4x[8]xi8>
// CHECK-NEXT: %[[res0:.*]] = vector.scalable.insert %[[subvec0]], %[[cst]][0] : vector<[8]xi8> into vector<[32]xi8>
// CHECK-NEXT: %[[res0:.*]] = vector.scalable.insert %[[subvec0]], %[[ub]][0] : vector<[8]xi8> into vector<[32]xi8>
// CHECK-NEXT: %[[subvec1:.*]] = vector.extract %[[arg0]][1] : vector<[8]xi8> from vector<4x[8]xi8>
// CHECK-NEXT: %[[res1:.*]] = vector.scalable.insert %[[subvec1]], %[[res0]][8] : vector<[8]xi8> into vector<[32]xi8>
// CHECK-NEXT: %[[subvec2:.*]] = vector.extract %[[arg0]][2] : vector<[8]xi8> from vector<4x[8]xi8>
Expand All @@ -56,9 +56,9 @@ func.func @i8_2d_to_1d_last_dim_scalable(%arg0: vector<4x[8]xi8>) -> vector<[32]
// CHECK-LABEL: i8_1d_to_2d_last_dim_scalable
// CHECK-SAME: %[[arg0:.*]]: vector<[32]xi8>
func.func @i8_1d_to_2d_last_dim_scalable(%arg0: vector<[32]xi8>) -> vector<4x[8]xi8> {
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0> : vector<4x[8]xi8>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<4x[8]xi8>
// CHECK-NEXT: %[[subvec0:.*]] = vector.scalable.extract %[[arg0]][0] : vector<[8]xi8> from vector<[32]xi8>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[cst]] [0] : vector<[8]xi8> into vector<4x[8]xi8>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[ub]] [0] : vector<[8]xi8> into vector<4x[8]xi8>
// CHECK-NEXT: %[[subvec1:.*]] = vector.scalable.extract %[[arg0]][8] : vector<[8]xi8> from vector<[32]xi8>
// CHECK-NEXT: %[[res1:.*]] = vector.insert %[[subvec1]], %[[res0]] [1] : vector<[8]xi8> into vector<4x[8]xi8>
// CHECK-NEXT: %[[subvec2:.*]] = vector.scalable.extract %[[arg0]][16] : vector<[8]xi8> from vector<[32]xi8>
Expand All @@ -75,9 +75,9 @@ func.func @i8_1d_to_2d_last_dim_scalable(%arg0: vector<[32]xi8>) -> vector<4x[8]
// CHECK-LABEL: f32_permute_leading_non_scalable_dims
// CHECK-SAME: %[[arg0:.*]]: vector<2x3x[4]xf32>
func.func @f32_permute_leading_non_scalable_dims(%arg0: vector<2x3x[4]xf32>) -> vector<3x2x[4]xf32> {
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0.000000e+00> : vector<3x2x[4]xf32>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<3x2x[4]xf32>
// CHECK-NEXT: %[[subvec0:.*]] = vector.extract %[[arg0]][0, 0] : vector<[4]xf32> from vector<2x3x[4]xf32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[cst]] [0, 0] : vector<[4]xf32> into vector<3x2x[4]xf32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[ub]] [0, 0] : vector<[4]xf32> into vector<3x2x[4]xf32>
// CHECK-NEXT: %[[subvec1:.*]] = vector.extract %[[arg0]][0, 1] : vector<[4]xf32> from vector<2x3x[4]xf32>
// CHECK-NEXT: %[[res1:.*]] = vector.insert %[[subvec1]], %[[res0]] [0, 1] : vector<[4]xf32> into vector<3x2x[4]xf32>
// CHECK-NEXT: %[[subvec2:.*]] = vector.extract %[[arg0]][0, 2] : vector<[4]xf32> from vector<2x3x[4]xf32>
Expand All @@ -99,17 +99,17 @@ func.func @f32_permute_leading_non_scalable_dims(%arg0: vector<2x3x[4]xf32>) ->
// CHECK-SAME: %[[arg0:.*]]: vector<2x2x[2]xf64>
func.func @f64_flatten_leading_non_scalable_dims(%arg0: vector<2x2x[2]xf64>) -> vector<4x[2]xf64>
{
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0.000000e+00> : vector<4x[2]xf64>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<4x[2]xf64>
// CHECK-NEXT: %[[subvec0:.*]] = vector.extract %[[arg0]][0, 0] : vector<[2]xf64> from vector<2x2x[2]xf64>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[cst]] [0] : vector<[2]xf64> into vector<4x[2]xf64>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[ub]] [0] : vector<[2]xf64> into vector<4x[2]xf64>
// CHECK-NEXT: %[[subvec1:.*]] = vector.extract %[[arg0]][0, 1] : vector<[2]xf64> from vector<2x2x[2]xf64>
// CHECK-NEXT: %[[res1:.*]] = vector.insert %[[subvec1]], %[[res0]] [1] : vector<[2]xf64> into vector<4x[2]xf64>
// CHECK-NEXT: %[[subvec2:.*]] = vector.extract %[[arg0]][1, 0] : vector<[2]xf64> from vector<2x2x[2]xf64>
// CHECK-NEXT: %[[res2:.*]] = vector.insert %[[subvec2]], %[[res1]] [2] : vector<[2]xf64> into vector<4x[2]xf64>
// CHECK-NEXT: %[[subvec3:.*]] = vector.extract %[[arg0]][1, 1] : vector<[2]xf64> from vector<2x2x[2]xf64>
// CHECK-NEXT: %[[res3:.*]] = vector.insert %[[subvec3]], %[[res2]] [3] : vector<[2]xf64> into vector<4x[2]xf64>
%res = vector.shape_cast %arg0: vector<2x2x[2]xf64> to vector<4x[2]xf64>
// CHECK-NEXT: return %7 : vector<4x[2]xf64>
// CHECK-NEXT: return %[[res3:.*]] : vector<4x[2]xf64>
return %res : vector<4x[2]xf64>
}

Expand All @@ -119,10 +119,10 @@ func.func @f64_flatten_leading_non_scalable_dims(%arg0: vector<2x2x[2]xf64>) ->
// CHECK-SAME: %[[arg0:.*]]: vector<3x[4]xf32>
func.func @f32_reduce_trailing_scalable_dim(%arg0: vector<3x[4]xf32>) -> vector<6x[2]xf32>
{
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0.000000e+00> : vector<6x[2]xf32>
// CHECK-NEXT: %[[ub:.*]] = ub.poison : vector<6x[2]xf32>
// CHECK-NEXT: %[[srcvec0:.*]] = vector.extract %[[arg0]][0] : vector<[4]xf32> from vector<3x[4]xf32>
// CHECK-NEXT: %[[subvec0:.*]] = vector.scalable.extract %[[srcvec0]][0] : vector<[2]xf32> from vector<[4]xf32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[cst]] [0] : vector<[2]xf32> into vector<6x[2]xf32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[subvec0]], %[[ub]] [0] : vector<[2]xf32> into vector<6x[2]xf32>
// CHECK-NEXT: %[[subvec1:.*]] = vector.scalable.extract %[[srcvec0]][2] : vector<[2]xf32> from vector<[4]xf32>
// CHECK-NEXT: %[[res1:.*]] = vector.insert %[[subvec1]], %[[res0]] [1] : vector<[2]xf32> into vector<6x[2]xf32>
// CHECK-NEXT: %[[srcvec1:.*]] = vector.extract %[[arg0]][1] : vector<[4]xf32> from vector<3x[4]xf32>
Expand All @@ -146,16 +146,15 @@ func.func @f32_reduce_trailing_scalable_dim(%arg0: vector<3x[4]xf32>) -> vector<
// CHECK-SAME: %[[arg0:.*]]: vector<4x[2]xf32>
func.func @f32_increase_trailing_scalable_dim(%arg0: vector<4x[2]xf32>) -> vector<2x[4]xf32>
{
// CHECK-NEXT: %[[cst:.*]] = arith.constant dense<0.000000e+00> : vector<2x[4]xf32>
// CHECK-DAG: %[[ub0:.*]] = ub.poison : vector<2x[4]xf32>
// CHECK-DAG: %[[ub1:.*]] = ub.poison : vector<[4]xf32>
// CHECK-NEXT: %[[subvec0:.*]] = vector.extract %[[arg0]][0] : vector<[2]xf32> from vector<4x[2]xf32>
// CHECK-NEXT: %[[resvec0:.*]] = vector.extract %[[cst]][0] : vector<[4]xf32> from vector<2x[4]xf32>
// CHECK-NEXT: %[[resvec1:.*]] = vector.scalable.insert %[[subvec0]], %[[resvec0]][0] : vector<[2]xf32> into vector<[4]xf32>
// CHECK-NEXT: %[[resvec1:.*]] = vector.scalable.insert %[[subvec0]], %[[ub1]][0] : vector<[2]xf32> into vector<[4]xf32>
// CHECK-NEXT: %[[subvec1:.*]] = vector.extract %[[arg0]][1] : vector<[2]xf32> from vector<4x[2]xf32>
// CHECK-NEXT: %[[resvec2:.*]] = vector.scalable.insert %[[subvec1]], %[[resvec1]][2] : vector<[2]xf32> into vector<[4]xf32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[resvec2]], %[[cst]] [0] : vector<[4]xf32> into vector<2x[4]xf32>
// CHECK-NEXT: %[[res0:.*]] = vector.insert %[[resvec2]], %[[ub0]] [0] : vector<[4]xf32> into vector<2x[4]xf32>
// CHECK-NEXT: %[[subvec3:.*]] = vector.extract %[[arg0]][2] : vector<[2]xf32> from vector<4x[2]xf32>
// CHECK-NEXT: %[[resvec3:.*]] = vector.extract %[[cst]][1] : vector<[4]xf32> from vector<2x[4]xf32>
// CHECK-NEXT: %[[resvec4:.*]] = vector.scalable.insert %[[subvec3]], %[[resvec3]][0] : vector<[2]xf32> into vector<[4]xf32>
// CHECK-NEXT: %[[resvec4:.*]] = vector.scalable.insert %[[subvec3]], %[[ub1]][0] : vector<[2]xf32> into vector<[4]xf32>
// CHECK-NEXT: %[[subvec4:.*]] = vector.extract %[[arg0]][3] : vector<[2]xf32> from vector<4x[2]xf32>
// CHECK-NEXT: %[[resvec5:.*]] = vector.scalable.insert %[[subvec4]], %[[resvec4]][2] : vector<[2]xf32> into vector<[4]xf32>
// CHECK-NEXT: %[[res1:.*]] = vector.insert %[[resvec5]], %[[res0]] [1] : vector<[4]xf32> into vector<2x[4]xf32>
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