torch-mlir/pytest/Core/mlir_pass.py

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# RUN: %PYTHON %s | FileCheck %s --dump-input=fail
2020-06-03 16:29:59 +08:00
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
"""Test for the MLIR Pass Python bindings"""
from _npcomp.mlir import ir
from _npcomp.mlir import passes
c = ir.MLIRContext()
pm = passes.PassManager(c)
# CHECK-LABEL: module @parseSuccess
m = c.parse_asm(r"""
module @parseSuccess {
func @notUsed() attributes { sym_visibility = "private" }
func @f() {
return
}
}
""")
# CHECK: func @notUsed
# CHECK: func @f
print(m.to_asm())
# CHECK: PASS COUNT: 0
print("PASS COUNT:", len(pm))
pm.addPassPipelines("canonicalize", "symbol-dce")
# Note: not checking the actual count since these may expand to more than
# two passes.
# CHECK: PASS COUNT:
print("PASS COUNT:", len(pm))
# CHECK: PASSES: canonicalize, symbol-dce
print("PASSES:", str(pm))
pm.run(m)
print(m.to_asm())
# CHECK-NOT: func @notUsed