mirror of https://github.com/llvm/torch-mlir
55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
# -*- Python -*-
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# This file is licensed under a pytorch-style license
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# See frontends/pytorch/LICENSE for license information.
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import torch
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import torch_mlir
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# RUN: %PYTHON %s | npcomp-opt | FileCheck %s
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mb = torch_mlir.ModuleBuilder()
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# CHECK-LABEL: @__torch__.prim_If(
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# CHECK-SAME: %[[B:.*]]: !torch.bool,
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# CHECK-SAME: %[[I:.*]]: i64) -> i64 {
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@mb.import_function
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@torch.jit.script
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def prim_If(b: bool, i: int):
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# CHECK: %[[I1:.*]] = torch.to_i1 %[[B]]
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# CHECK: %[[RES:.*]] = scf.if %[[I1]] -> (i64) {
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# CHECK: %[[ADD:.*]] = torch.aten.add.int %[[I]], %[[I]]
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# CHECK: scf.yield %[[ADD]] : i64
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# CHECK: } else {
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# CHECK: %[[MUL:.*]] = torch.aten.mul.int %[[I]], %[[I]]
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# CHECK: scf.yield %[[MUL]] : i64
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# CHECK: }
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# CHECK: return %[[RES:.*]] : i64
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if b:
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return i + i
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else:
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return i * i
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# elif is modeled as a nested if, so no need to specially test it here.
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# CHECK-LABEL: func @__torch__.prim_If_derefine(
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# CHECK-SAME: %[[B:.*]]: !torch.bool,
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# CHECK-SAME: %[[I:.*]]: i64) -> !torch.optional<i64> {
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# CHECK: %[[NONE:.*]] = torch.constant.none
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# CHECK: %[[PRED:.*]] = torch.to_i1 %[[B]]
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# CHECK: %[[RES:.*]] = scf.if %[[PRED]] -> (!torch.optional<i64>) {
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# CHECK: %[[NONE_DEREFINED:.*]] = torch.derefine %[[NONE]] : !torch.none to !torch.optional<i64>
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# CHECK: scf.yield %[[NONE_DEREFINED]] : !torch.optional<i64>
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# CHECK: } else {
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# CHECK: %[[I_DEREFINED:.*]] = torch.derefine %[[I]] : i64 to !torch.optional<i64>
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# CHECK: scf.yield %[[I_DEREFINED]] : !torch.optional<i64>
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# CHECK: }
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# CHECK: return %[[RES:.*]] : !torch.optional<i64>
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@mb.import_function
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@torch.jit.script
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def prim_If_derefine(b: bool, i: int):
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if b:
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return None
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return i
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mb.module.operation.print()
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print()
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