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[mlir] Implement inferResultRanges for vector.transpose #151537

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Merged
merged 1 commit into from
Jul 31, 2025
Merged

[mlir] Implement inferResultRanges for vector.transpose #151537

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1 change: 1 addition & 0 deletions mlir/include/mlir/Dialect/Vector/IR/VectorOps.td
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Original file line number Diff line number Diff line change
Expand Up @@ -2595,6 +2595,7 @@ def Vector_MaskOp : Vector_Op<"mask", [

def Vector_TransposeOp :
Vector_Op<"transpose", [Pure,
DeclareOpInterfaceMethods<InferIntRangeInterface, ["inferResultRanges"]>,
DeclareOpInterfaceMethods<VectorUnrollOpInterface, ["getShapeForUnroll"]>,
PredOpTrait<"operand and result have same element type",
TCresVTEtIsSameAsOpBase<0, 0>>]> {
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5 changes: 5 additions & 0 deletions mlir/lib/Dialect/Vector/IR/VectorOps.cpp
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Expand Up @@ -6316,6 +6316,11 @@ std::optional<SmallVector<int64_t, 4>> TransposeOp::getShapeForUnroll() {
return llvm::to_vector<4>(getResultVectorType().getShape());
}

void TransposeOp::inferResultRanges(ArrayRef<ConstantIntRanges> argRanges,
SetIntRangeFn setResultRanges) {
setResultRanges(getResult(), argRanges.front());
}

namespace {

// Rewrites two back-to-back TransposeOp operations into a single TransposeOp.
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9 changes: 9 additions & 0 deletions mlir/test/Dialect/Vector/int-range-interface.mlir
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Expand Up @@ -51,6 +51,15 @@ func.func @vector_shape_cast() -> vector<4x4xindex> {
func.return %2 : vector<4x4xindex>
}

// CHECK-LABEL: func @vector_transpose
// CHECK: test.reflect_bounds {smax = 8 : index, smin = 7 : index, umax = 8 : index, umin = 7 : index}
func.func @vector_transpose() -> vector<2x4xindex> {
%0 = test.with_bounds { smax = 8 : index, smin = 7 : index, umax = 8 : index, umin = 7 : index } : vector<4x2xindex>
%1 = vector.transpose %0, [1, 0] : vector<4x2xindex> to vector<2x4xindex>
%2 = test.reflect_bounds %1 : vector<2x4xindex>
func.return %2 : vector<2x4xindex>
}

// CHECK-LABEL: func @vector_extract
// CHECK: test.reflect_bounds {smax = 6 : index, smin = 5 : index, umax = 6 : index, umin = 5 : index}
func.func @vector_extract() -> index {
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