[TORCH][MLIR] Add E2E support for `aten.ceil` op

This commit adds lowering of `aten.ceil` op as a part of element-wise
ops lowering.

Signed-Off-by: Gaurav Shukla <gaurav@nod-labs.com>

e2e_testing/torchscript/elementwise.py

@@ -521,6 +521,22 @@ class ElementwiseFloorModule(torch.nn.Module):
 def ElementwiseFloorModule_basic(module, tu: TestUtils):
     module.forward(tu.rand(3, 4))
 
+class ElementwiseCeilModule(torch.nn.Module):
+    def __init__(self):
+        super().__init__()
+    @export
+    @annotate_args([
+        None,
+        ([-1, -1], torch.float32, True),
+    ])
+
+    def forward(self, a):
+        return torch.ceil(a)
+
+@register_test_case(module_factory=lambda: ElementwiseCeilModule())
+def ElementwiseCeilModule_basic(module, tu: TestUtils):
+    module.forward(tu.rand(3, 4))
+
 class ElementwisePowModule(torch.nn.Module):
     def __init__(self):
         super().__init__()

include/torch-mlir/Dialect/Torch/IR/GeneratedAtenOps.td

@@ -298,6 +298,34 @@ def Torch_AtenFloor_Op : Torch_Op<"aten.floor_", [
   let assemblyFormat = "$self attr-dict `:` type($self) `->` type($result)";
 }
 
+def Torch_AtenCeilOp : Torch_Op<"aten.ceil", [
+    AllowsTypeRefinement,
+    HasValueSemantics
+  ]> {
+  let summary = "Generated op for `aten::ceil : (Tensor) -> (Tensor)`";
+  let arguments = (ins
+    AnyTorchTensorType:$self
+  );
+  let results = (outs
+    AnyTorchTensorType:$result
+  );
+  let assemblyFormat = "$self attr-dict `:` type($self) `->` type($result)";
+}
+
+def Torch_AtenCeil_Op : Torch_Op<"aten.ceil_", [
+    IsTrailingUnderscoreInplaceVariant,
+    AllowsTypeRefinement
+  ]> {
+  let summary = "Generated op for `aten::ceil_ : (Tensor) -> (Tensor)`";
+  let arguments = (ins
+    AnyTorchTensorType:$self
+  );
+  let results = (outs
+    AnyTorchTensorType:$result
+  );
+  let assemblyFormat = "$self attr-dict `:` type($self) `->` type($result)";
+}
+
 def Torch_AtenBitwiseNotOp : Torch_Op<"aten.bitwise_not", [
     AllowsTypeRefinement,
     HasValueSemantics

lib/Conversion/TorchToLinalg/TorchToLinalg.cpp

@@ -1512,6 +1512,8 @@ static Value createLinalgPayloadCalculationForElementwiseOp(
     return b.create<math::ExpOp>(loc, payloadArgs[0]);
   if (isa<AtenFloorOp>(op))
     return b.create<math::FloorOp>(loc, payloadArgs[0]);
+  if (isa<AtenCeilOp>(op))
+    return b.create<math::CeilOp>(loc, payloadArgs[0]);
   if (isa<AtenLogOp>(op))
     return b.create<math::LogOp>(loc, payloadArgs[0]);
   if (isa<AtenSqrtOp>(op))
@@ -2067,7 +2069,8 @@ struct ConvertElementwiseOp : ConversionPattern {
              AtenClampOp, AtenRsubScalarOp, AtenMulScalarOp, AtenLogOp,
              AtenSqrtOp, AtenFloorOp, AtenPowTensorScalarOp, AtenLog2Op,
              AtenRsqrtOp, AtenDivScalarOp, AtenAbsOp, AtenReciprocalOp,
-             AtenBitwiseAndTensorOp, AtenGtScalarOp, AtenWhereSelfOp>(op))
+             AtenBitwiseAndTensorOp, AtenGtScalarOp, AtenWhereSelfOp,
+             AtenCeilOp>(op))
       return rewriter.notifyMatchFailure(op, "not a supported elementwise op");
 
     if (failed(verifyLinalgCompatibleTypes(op, rewriter)))
@@ -3635,8 +3638,8 @@ public:
         AtenAddTensorOp, AtenMulTensorOp, AtenDivTensorOp, AtenSubTensorOp,
         AtenLerpTensorOp, AtenSigmoidOp, AtenMinimumOp, AtenMaximumOp,
         AtenToDtypeOp, AtenClampOp, AtenRsubScalarOp, AtenLogOp, AtenSqrtOp,
-        AtenFloorOp, AtenPowTensorScalarOp, AtenLog2Op, AtenRsqrtOp, AtenAbsOp,
-        AtenReciprocalOp, AtenBitwiseAndTensorOp, AtenGtScalarOp,
+        AtenFloorOp, AtenCeilOp, AtenPowTensorScalarOp, AtenLog2Op, AtenRsqrtOp,
+        AtenAbsOp, AtenReciprocalOp, AtenBitwiseAndTensorOp, AtenGtScalarOp,
         AtenWhereSelfOp>();
     patterns.add<ConvertElementwiseOp>(typeConverter, context);
     target.addIllegalOp<AtenSqueezeOp>();

lib/Dialect/Torch/Transforms/RefineTypes.cpp

@@ -242,7 +242,7 @@ public:
             AtenLayerNormOp, AtenClampOp, AtenLogOp, AtenNegOp, AtenSqrtOp,
             AtenFloorOp, AtenLog2Op, Aten_SoftmaxBackwardDataOp, AtenRsqrtOp,
             AtenDropoutOp, AtenTanhBackwardOp, Aten_LogSoftmaxBackwardDataOp,
-            AtenAddIntOp, AtenAbsOp, AtenReciprocalOp>(op)) {
+            AtenAddIntOp, AtenAbsOp, AtenReciprocalOp, AtenCeilOp>(op)) {
       return getLatticeElement(op->getResult(0)).join(*operands[0]);
     }
 

python/torch_mlir/dialects/torch/importer/jit_ir/build_tools/torch_ods_gen.py

@@ -447,6 +447,7 @@ def emit_aten_ops(torch_ir_dir: str, registry: Registry):
                 "aten::cos : (Tensor) -> (Tensor)",
                 "aten::neg : (Tensor) -> (Tensor)",
                 "aten::floor : (Tensor) -> (Tensor)",
+                "aten::ceil : (Tensor) -> (Tensor)",
                 "aten::bitwise_not : (Tensor) -> (Tensor)",
                 "aten::add.Tensor : (Tensor, Tensor, Scalar) -> (Tensor)",
                 "aten::sub.Tensor : (Tensor, Tensor, Scalar) -> (Tensor)",