8c1b785ce1
This is an important core dialect that has not been exposed previously. Set up the default bindings generation and provide a nicer wrapper for the `for` loop with access to the loop configuration and body. Depends On D110758 Reviewed By: stellaraccident Differential Revision: https://reviews.llvm.org/D110759
55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
# RUN: %PYTHON %s | FileCheck %s
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from mlir.ir import *
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from mlir.dialects import scf
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from mlir.dialects import builtin
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def run(f):
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print("\nTEST:", f.__name__)
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f()
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return f
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# CHECK-LABEL: TEST: testSimpleLoop
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@run
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def testSimpleLoop():
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with Context(), Location.unknown():
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module = Module.create()
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index_type = IndexType.get()
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with InsertionPoint(module.body):
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@builtin.FuncOp.from_py_func(index_type, index_type, index_type)
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def simple_loop(lb, ub, step):
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loop = scf.ForOp(lb, ub, step, [lb, lb])
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with InsertionPoint(loop.body):
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scf.YieldOp(loop.inner_iter_args)
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return
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# CHECK: func @simple_loop(%[[ARG0:.*]]: index, %[[ARG1:.*]]: index, %[[ARG2:.*]]: index)
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# CHECK: scf.for %{{.*}} = %[[ARG0]] to %[[ARG1]] step %[[ARG2]]
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# CHECK: iter_args(%[[I1:.*]] = %[[ARG0]], %[[I2:.*]] = %[[ARG0]])
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# CHECK: scf.yield %[[I1]], %[[I2]]
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print(module)
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# CHECK-LABEL: TEST: testInductionVar
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@run
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def testInductionVar():
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with Context(), Location.unknown():
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module = Module.create()
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index_type = IndexType.get()
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with InsertionPoint(module.body):
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@builtin.FuncOp.from_py_func(index_type, index_type, index_type)
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def induction_var(lb, ub, step):
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loop = scf.ForOp(lb, ub, step, [lb])
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with InsertionPoint(loop.body):
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scf.YieldOp([loop.induction_variable])
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return
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# CHECK: func @induction_var(%[[ARG0:.*]]: index, %[[ARG1:.*]]: index, %[[ARG2:.*]]: index)
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# CHECK: scf.for %[[IV:.*]] = %[[ARG0]] to %[[ARG1]] step %[[ARG2]]
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# CHECK: scf.yield %[[IV]]
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print(module)
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