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TosaToTensor: Support reshape on unsigned #179

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May 8, 2024
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4 changes: 3 additions & 1 deletion mlir/include/mlir/Conversion/TosaToTensor/TosaToTensor.h
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
#include "mlir/Pass/Pass.h"

namespace mlir {
class TypeConverter;

#define GEN_PASS_DECL_TOSATOTENSOR
#include "mlir/Conversion/Passes.h.inc"
Expand All @@ -24,7 +25,8 @@ namespace tosa {

std::unique_ptr<Pass> createTosaToTensor();

void populateTosaToTensorConversionPatterns(RewritePatternSet *patterns);
void populateTosaToTensorConversionPatterns(TypeConverter &converter,
RewritePatternSet *patterns);

} // namespace tosa
} // namespace mlir
Expand Down
12 changes: 8 additions & 4 deletions mlir/lib/Conversion/TosaToTensor/TosaToTensor.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -207,7 +207,11 @@ class ReshapeConverterCollapseExpand
matchAndRewrite(tosa::ReshapeOp reshape, OpAdaptor adaptor,
ConversionPatternRewriter &rewriter) const final {
ShapedType operandTy = cast<ShapedType>(adaptor.getInput1().getType());
ShapedType resultTy = cast<ShapedType>(reshape.getType());
ShapedType resultTy = cast_if_present<ShapedType>(getTypeConverter()->convertType(reshape.getType()));
if (!resultTy) {
return rewriter.notifyMatchFailure(
reshape.getLoc(), "could not convert result type");
}
bool isDynamic = !operandTy.hasStaticShape();

SmallVector<int64_t> intermediateShape;
Expand All @@ -218,7 +222,7 @@ class ReshapeConverterCollapseExpand
"the given two shapes");
}
auto intermediateTy = RankedTensorType::get(
intermediateShape, reshape.getType().getElementType());
intermediateShape, resultTy.getElementType());

Value collapse = createCollapse(rewriter, reshape.getLoc(), intermediateTy,
adaptor.getInput1());
Expand Down Expand Up @@ -415,9 +419,9 @@ struct ConcatConverter : public OpConversionPattern<tosa::ConcatOp> {
} // namespace

void mlir::tosa::populateTosaToTensorConversionPatterns(
RewritePatternSet *patterns) {
TypeConverter &converter, RewritePatternSet *patterns) {
patterns->add<SliceConverter, PadConverter, ConcatConverter>(
patterns->getContext());

patterns->add<ReshapeConverterCollapseExpand>(patterns->getContext());
patterns->add<ReshapeConverterCollapseExpand>(converter, patterns->getContext());
}
7 changes: 6 additions & 1 deletion mlir/lib/Conversion/TosaToTensor/TosaToTensorPass.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@

#include "mlir/Conversion/TosaToTensor/TosaToTensor.h"

#include "mlir/Conversion/TosaToLinalg/TosaToLinalg.h"
#include "mlir/Dialect/Arith/IR/Arith.h"
#include "mlir/Dialect/Tensor/IR/Tensor.h"
#include "mlir/Dialect/Tosa/IR/TosaOps.h"
Expand All @@ -21,6 +22,7 @@
#include "mlir/Transforms/DialectConversion.h"
#include "mlir/Transforms/GreedyPatternRewriteDriver.h"


namespace mlir {
#define GEN_PASS_DEF_TOSATOTENSOR
#include "mlir/Conversion/Passes.h.inc"
Expand All @@ -42,7 +44,10 @@ struct TosaToTensor : public impl::TosaToTensorBase<TosaToTensor> {
target.addLegalDialect<arith::ArithDialect>();
target.addLegalDialect<tensor::TensorDialect>();

mlir::tosa::populateTosaToTensorConversionPatterns(&patterns);
TypeConverter converter;
mlir::tosa::populateTosaToLinalgTypeConversion(converter);

mlir::tosa::populateTosaToTensorConversionPatterns(converter, &patterns);

if (failed(applyPartialConversion(getOperation(), target,
std::move(patterns))))
Expand Down
13 changes: 13 additions & 0 deletions mlir/test/Conversion/TosaToTensor/tosa-to-tensor.mlir
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,19 @@ func.func @test_reshape_samerank(%arg0: tensor<3x2xf32>) -> tensor<2x3xf32> {

// -----

// CHECK-LABEL: @test_reshape_samerank_unsigned
// CHECK-SAME: (%[[ARG0:.*]]: tensor<3x2xui8>)
func.func @test_reshape_samerank_unsigned(%arg0: tensor<3x2xui8>) -> tensor<2x3xui8> {
// CHECK-NEXT: %[[CAST1:.*]] = builtin.unrealized_conversion_cast %[[ARG0]] : tensor<3x2xui8> to tensor<3x2xi8>
// CHECK-NEXT: %[[RESHAPE1:.*]] = tensor.collapse_shape %[[CAST1]] {{\[}}[0, 1]] : tensor<3x2xi8> into tensor<6xi8>
// CHECK-NEXT: %[[RESHAPE2:.*]] = tensor.expand_shape %[[RESHAPE1]] {{\[}}[0, 1]] : tensor<6xi8> into tensor<2x3xi8>
// CHECK-NEXT: %[[CAST2:.*]] = builtin.unrealized_conversion_cast %[[RESHAPE2]] : tensor<2x3xi8> to tensor<2x3xui8>
%0 = "tosa.reshape"(%arg0) {new_shape = array<i64: 2, 3>} : (tensor<3x2xui8>) -> tensor<2x3xui8>
// CHECK-NEXT: return %[[CAST2]]
return %0 : tensor<2x3xui8>
}
// -----

// CHECK-LABEL: @test_reshape_samerank_dyn
// CHECK-SAME: (%[[ARG0:.*]]: tensor<?x2xf32>)
func.func @test_reshape_samerank_dyn(%arg0: tensor<?x2xf32>) -> tensor<2x?xf32> {
Expand Down