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# RUN: %PYTHON %s | FileCheck %s
import gc
from tempfile import NamedTemporaryFile
from mlir.ir import *
def run(f):
print("\nTEST:", f.__name__)
f()
gc.collect()
assert Context._get_live_count() == 0
return f
# Verify successful parse.
# CHECK-LABEL: TEST: testParseSuccess
# CHECK: module @successfulParse
@run
def testParseSuccess():
ctx = Context()
module = Module.parse(r"""module @successfulParse {}""", ctx)
assert module.context is ctx
print("CLEAR CONTEXT")
ctx = None # Ensure that module captures the context.
gc.collect()
module.dump() # Just outputs to stderr. Verifies that it functions.
print(str(module))
# Verify successful parse from file.
# CHECK-LABEL: TEST: testParseFromFileSuccess
# CHECK: module @successfulParse
@run
def testParseFromFileSuccess():
ctx = Context()
with NamedTemporaryFile(mode="w") as tmp_file:
tmp_file.write(r"""module @successfulParse {}""")
tmp_file.flush()
module = Module.parseFile(tmp_file.name, ctx)
assert module.context is ctx
print("CLEAR CONTEXT")
ctx = None # Ensure that module captures the context.
gc.collect()
module.operation.verify()
print(str(module))
# Verify parse error.
# CHECK-LABEL: TEST: testParseError
# CHECK: testParseError: <
# CHECK: Unable to parse module assembly:
# CHECK: error: "-":1:1: expected operation name in quotes
# CHECK: >
@run
def testParseError():
ctx = Context()
try:
module = Module.parse(r"""}SYNTAX ERROR{""", ctx)
except MLIRError as e:
print(f"testParseError: <{e}>")
else:
print("Exception not produced")
# Verify successful parse.
# CHECK-LABEL: TEST: testCreateEmpty
# CHECK: module {
@run
def testCreateEmpty():
ctx = Context()
loc = Location.unknown(ctx)
module = Module.create(loc)
print("CLEAR CONTEXT")
ctx = None # Ensure that module captures the context.
gc.collect()
print(str(module))
# Verify round-trip of ASM that contains unicode.
# Note that this does not test that the print path converts unicode properly
# because MLIR asm always normalizes it to the hex encoding.
# CHECK-LABEL: TEST: testRoundtripUnicode
# CHECK: func private @roundtripUnicode()
# CHECK: foo = "\F0\9F\98\8A"
@run
def testRoundtripUnicode():
ctx = Context()
module = Module.parse(
r"""
func.func private @roundtripUnicode() attributes { foo = "😊" }
""",
ctx,
)
print(str(module))
# Verify round-trip of ASM that contains unicode.
# Note that this does not test that the print path converts unicode properly
# because MLIR asm always normalizes it to the hex encoding.
# CHECK-LABEL: TEST: testRoundtripBinary
# CHECK: func private @roundtripUnicode()
# CHECK: foo = "\F0\9F\98\8A"
@run
def testRoundtripBinary():
with Context():
module = Module.parse(
r"""
func.func private @roundtripUnicode() attributes { foo = "😊" }
"""
)
binary_asm = module.operation.get_asm(binary=True)
assert isinstance(binary_asm, bytes)
module = Module.parse(binary_asm)
print(module)
# Tests that module.operation works and correctly interns instances.
# CHECK-LABEL: TEST: testModuleOperation
@run
def testModuleOperation():
ctx = Context()
module = Module.parse(r"""module @successfulParse {}""", ctx)
assert ctx._get_live_module_count() == 1
op1 = module.operation
# CHECK: module @successfulParse
print(op1)
# Ensure that operations are the same on multiple calls.
op2 = module.operation
assert op1 is not op2
assert op1 == op2
# Test live operation clearing.
op1 = module.operation
op1 = None
gc.collect()
op1 = module.operation
# Ensure that if module is de-referenced, the operations are still valid.
module = None
gc.collect()
print(op1)
# Collect and verify lifetime.
op1 = None
op2 = None
gc.collect()
assert ctx._get_live_module_count() == 0
# CHECK-LABEL: TEST: testModuleCapsule
@run
def testModuleCapsule():
ctx = Context()
module = Module.parse(r"""module @successfulParse {}""", ctx)
assert ctx._get_live_module_count() == 1
# CHECK: "mlir.ir.Module._CAPIPtr"
module_capsule = module._CAPIPtr
print(module_capsule)
module_dup = Module._CAPICreate(module_capsule)
assert module is module_dup
assert module == module_dup
assert module_dup.context is ctx
# Gc and verify destructed.
module = None
module_capsule = None
module_dup = None
gc.collect()
assert ctx._get_live_module_count() == 0
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