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# RUN: %PYTHON %s 2>&1 | FileCheck %s
import gc
from mlir.ir import *
from mlir.passmanager import *
from mlir.dialects.builtin import ModuleOp
from mlir.dialects import arith
from mlir.rewrite import *
def run(f):
print("\nTEST:", f.__name__)
f()
gc.collect()
return f
# CHECK-LABEL: TEST: testRewritePattern
@run
def testRewritePattern():
def to_muli(op, rewriter):
with rewriter.ip:
assert isinstance(op, arith.AddIOp)
new_op = arith.muli(op.lhs, op.rhs, loc=op.location)
rewriter.replace_op(op, new_op.owner)
def constant_1_to_2(op, rewriter):
c = op.value.value
if c != 1:
return True # failed to match
with rewriter.ip:
new_op = arith.constant(op.type, 2, loc=op.location)
rewriter.replace_op(op, [new_op])
with Context():
patterns = RewritePatternSet()
patterns.add(arith.AddIOp, to_muli)
patterns.add("arith.constant", constant_1_to_2)
frozen = patterns.freeze()
module = ModuleOp.parse(
r"""
module {
func.func @add(%a: i64, %b: i64) -> i64 {
%sum = arith.addi %a, %b : i64
return %sum : i64
}
}
"""
)
apply_patterns_and_fold_greedily(module, frozen)
# CHECK: %0 = arith.muli %arg0, %arg1 : i64
# CHECK: return %0 : i64
print(module)
module = ModuleOp.parse(
r"""
module {
func.func @const() -> (i64, i64) {
%0 = arith.constant 1 : i64
%1 = arith.constant 3 : i64
return %0, %1 : i64, i64
}
}
"""
)
apply_patterns_and_fold_greedily(module, frozen)
# CHECK: %c2_i64 = arith.constant 2 : i64
# CHECK: %c3_i64 = arith.constant 3 : i64
# CHECK: return %c2_i64, %c3_i64 : i64, i64
print(module)
module = ModuleOp.parse(
r"""
module {
func.func @add(%a: i64, %b: i64) -> i64 {
%sum = arith.addi %a, %b : i64
return %sum : i64
}
}
"""
)
walk_and_apply_patterns(module, frozen)
# CHECK: %0 = arith.muli %arg0, %arg1 : i64
# CHECK: return %0 : i64
print(module)
# CHECK-LABEL: TEST: testGreedyRewriteConfigCreation
@run
def testGreedyRewriteConfigCreation():
# Test basic config creation and destruction
config = GreedyRewriteConfig()
# CHECK: Config created successfully
print("Config created successfully")
# CHECK-LABEL: TEST: testGreedyRewriteConfigGetters
@run
def testGreedyRewriteConfigGetters():
config = GreedyRewriteConfig()
# Set some values
config.max_iterations = 5
config.max_num_rewrites = 50
config.use_top_down_traversal = True
config.enable_folding = False
config.strictness = GreedyRewriteStrictness.EXISTING_AND_NEW_OPS
config.region_simplification_level = GreedySimplifyRegionLevel.AGGRESSIVE
config.enable_constant_cse = True
# Test all getter methods and print results
# CHECK: max_iterations: 5
max_iterations = config.max_iterations
print(f"max_iterations: {max_iterations}")
# CHECK: max_rewrites: 50
max_rewrites = config.max_num_rewrites
print(f"max_rewrites: {max_rewrites}")
# CHECK: use_top_down: True
use_top_down = config.use_top_down_traversal
print(f"use_top_down: {use_top_down}")
# CHECK: folding_enabled: False
folding_enabled = config.enable_folding
print(f"folding_enabled: {folding_enabled}")
# CHECK: strictness: GreedyRewriteStrictness.EXISTING_AND_NEW_OPS
strictness = config.strictness
print(f"strictness: {strictness}")
# CHECK: region_level: GreedySimplifyRegionLevel.AGGRESSIVE
region_level = config.region_simplification_level
print(f"region_level: {region_level}")
# CHECK: cse_enabled: True
cse_enabled = config.enable_constant_cse
print(f"cse_enabled: {cse_enabled}")
# CHECK-LABEL: TEST: testGreedyRewriteStrictnessEnum
@run
def testGreedyRewriteStrictnessEnum():
config = GreedyRewriteConfig()
# Test ANY_OP
# CHECK: strictness ANY_OP: GreedyRewriteStrictness.ANY_OP
config.strictness = GreedyRewriteStrictness.ANY_OP
strictness = config.strictness
print(f"strictness ANY_OP: {strictness}")
# Test EXISTING_AND_NEW_OPS
# CHECK: strictness EXISTING_AND_NEW_OPS: GreedyRewriteStrictness.EXISTING_AND_NEW_OPS
config.strictness = GreedyRewriteStrictness.EXISTING_AND_NEW_OPS
strictness = config.strictness
print(f"strictness EXISTING_AND_NEW_OPS: {strictness}")
# Test EXISTING_OPS
# CHECK: strictness EXISTING_OPS: GreedyRewriteStrictness.EXISTING_OPS
config.strictness = GreedyRewriteStrictness.EXISTING_OPS
strictness = config.strictness
print(f"strictness EXISTING_OPS: {strictness}")
# CHECK-LABEL: TEST: testGreedySimplifyRegionLevelEnum
@run
def testGreedySimplifyRegionLevelEnum():
config = GreedyRewriteConfig()
# Test DISABLED
# CHECK: region_level DISABLED: GreedySimplifyRegionLevel.DISABLED
config.region_simplification_level = GreedySimplifyRegionLevel.DISABLED
level = config.region_simplification_level
print(f"region_level DISABLED: {level}")
# Test NORMAL
# CHECK: region_level NORMAL: GreedySimplifyRegionLevel.NORMAL
config.region_simplification_level = GreedySimplifyRegionLevel.NORMAL
level = config.region_simplification_level
print(f"region_level NORMAL: {level}")
# Test AGGRESSIVE
# CHECK: region_level AGGRESSIVE: GreedySimplifyRegionLevel.AGGRESSIVE
config.region_simplification_level = GreedySimplifyRegionLevel.AGGRESSIVE
level = config.region_simplification_level
print(f"region_level AGGRESSIVE: {level}")
# CHECK-LABEL: TEST: testRewriteWithGreedyRewriteConfig
@run
def testRewriteWithGreedyRewriteConfig():
def constant_1_to_2(op, rewriter):
c = op.value.value
if c != 1:
return True # failed to match
with rewriter.ip:
new_op = arith.constant(op.type, 2, loc=op.location)
rewriter.replace_op(op, [new_op])
with Context():
patterns = RewritePatternSet()
patterns.add(arith.ConstantOp, constant_1_to_2)
frozen = patterns.freeze()
module = ModuleOp.parse(
r"""
module {
func.func @const() -> (i64, i64) {
%0 = arith.constant 1 : i64
%1 = arith.constant 1 : i64
return %0, %1 : i64, i64
}
}
"""
)
config = GreedyRewriteConfig()
config.enable_constant_cse = False
apply_patterns_and_fold_greedily(module, frozen, config)
# CHECK: %c2_i64 = arith.constant 2 : i64
# CHECK: %c2_i64_0 = arith.constant 2 : i64
# CHECK: return %c2_i64, %c2_i64_0 : i64, i64
print(module)
config = GreedyRewriteConfig()
config.enable_constant_cse = True
apply_patterns_and_fold_greedily(module, frozen, config)
# CHECK: %c2_i64 = arith.constant 2 : i64
# CHECK: return %c2_i64, %c2_i64 : i64
print(module)
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