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# RUN: %PYTHON %s | FileCheck %s
import gc
import mlir
def run(f):
print("\nTEST:", f.__name__)
f()
gc.collect()
assert mlir.ir.Context._get_live_count() == 0
# Verify successful parse.
# CHECK-LABEL: TEST: testParseSuccess
# CHECK: module @successfulParse
def testParseSuccess():
ctx = mlir.ir.Context()
module = ctx.parse_module(r"""module @successfulParse {}""")
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))
run(testParseSuccess)
# Verify parse error.
# CHECK-LABEL: TEST: testParseError
# CHECK: testParseError: Unable to parse module assembly (see diagnostics)
def testParseError():
ctx = mlir.ir.Context()
try:
module = ctx.parse_module(r"""}SYNTAX ERROR{""")
except ValueError as e:
print("testParseError:", e)
else:
print("Exception not produced")
run(testParseError)
# 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 @roundtripUnicode()
# CHECK: foo = "\F0\9F\98\8A"
def testRoundtripUnicode():
ctx = mlir.ir.Context()
module = ctx.parse_module(r"""
func @roundtripUnicode() attributes { foo = "😊" }
""")
print(str(module))
run(testRoundtripUnicode)
# Tests that module.operation works and correctly interns instances.
# CHECK-LABEL: TEST: testModuleOperation
def testModuleOperation():
ctx = mlir.ir.Context()
module = ctx.parse_module(r"""module @successfulParse {}""")
op1 = module.operation
assert ctx._get_live_operation_count() == 1
# CHECK: module @successfulParse
print(op1)
# Ensure that operations are the same on multiple calls.
op2 = module.operation
assert ctx._get_live_operation_count() == 1
assert op1 is op2
# 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()
print("LIVE OPERATIONS:", ctx._get_live_operation_count())
assert ctx._get_live_operation_count() == 0
run(testModuleOperation)
# CHECK-LABEL: TEST: testModuleCapsule
def testModuleCapsule():
ctx = mlir.ir.Context()
module = ctx.parse_module(r"""module @successfulParse {}""")
# CHECK: "mlir.ir.Module._CAPIPtr"
print(module._CAPIPtr)
run(testModuleCapsule)
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