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test_emit_IR.py
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test_emit_IR.py
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import unittest
from typing import Dict, Optional
import bytecode
import emit_IR
import find_tail_calls
import runner
import scheme_types
import sexp
class EmitExpressionTestCase(unittest.TestCase):
expr_emitter: emit_IR.ExpressionEmitter
bb: bytecode.BasicBlock
def setUp(self) -> None:
bb_names = emit_IR.name_generator('bb')
self.bb = bytecode.BasicBlock(next(bb_names))
self.expr_emitter = emit_IR.ExpressionEmitter(
self.bb, bb_names, emit_IR.name_generator('v'), {}, {})
def test_emit_int_literal(self) -> None:
prog = sexp.parse('42')
self.expr_emitter.visit(prog)
self.assertEqual(
bytecode.NumLit(sexp.SNum(42)), self.expr_emitter.result)
def test_emit_quoted_symbol_literal(self) -> None:
prog = sexp.parse("'spam")
self.expr_emitter.visit(prog)
self.assertEqual(
bytecode.SymLit(sexp.SSym('spam')), self.expr_emitter.result)
def test_emit_bool_literal(self) -> None:
prog = sexp.parse('false')
self.expr_emitter.visit(prog)
self.assertEqual(
bytecode.BoolLit(sexp.SBool(False)), self.expr_emitter.result)
def test_emit_empty_vector_literal(self) -> None:
prog = sexp.parse('[]')
self.expr_emitter.visit(prog)
expected_instrs = [
bytecode.AllocInst(
bytecode.Var('v0'),
bytecode.NumLit(sexp.SNum(0))
)
]
self.assertEqual(expected_instrs, self.bb.instructions)
def test_emit_non_empty_vector_literal(self) -> None:
prog = sexp.parse('[1 2]')
self.expr_emitter.visit(prog)
arr_var = bytecode.Var('v0')
expected_instrs = [
bytecode.AllocInst(
arr_var,
bytecode.NumLit(sexp.SNum(2))
),
bytecode.StoreInst(
arr_var,
bytecode.NumLit(sexp.SNum(0)),
bytecode.NumLit(sexp.SNum(1))
),
bytecode.StoreInst(
arr_var,
bytecode.NumLit(sexp.SNum(1)),
bytecode.NumLit(sexp.SNum(2))
)
]
self.assertEqual(expected_instrs, self.bb.instructions)
def test_emit_empty_quoted_list(self) -> None:
prog = sexp.parse("'()")
self.expr_emitter.visit(prog)
nil_var = bytecode.Var('v0')
expected_instrs = [
bytecode.AllocInst(
nil_var, bytecode.NumLit(sexp.SNum(0))
)
]
self.assertEqual(expected_instrs, self.bb.instructions)
def test_emit_non_empty_quoted_list(self) -> None:
prog = sexp.parse("'(1 spam)")
self.expr_emitter.visit(prog)
nil_var = bytecode.Var('v0')
second_pair = bytecode.Var('v1')
first_pair = bytecode.Var('v2')
expected_instrs = [
bytecode.AllocInst(
nil_var, bytecode.NumLit(sexp.SNum(0))
),
bytecode.AllocInst(
second_pair, bytecode.NumLit(sexp.SNum(2))
),
bytecode.StoreInst(
second_pair,
bytecode.NumLit(sexp.SNum(0)),
bytecode.SymLit(sexp.SSym('spam'))
),
bytecode.StoreInst(
second_pair, bytecode.NumLit(sexp.SNum(1)), nil_var
),
bytecode.AllocInst(
first_pair, bytecode.NumLit(sexp.SNum(2))
),
bytecode.StoreInst(
first_pair,
bytecode.NumLit(sexp.SNum(0)),
bytecode.NumLit(sexp.SNum(1))
),
bytecode.StoreInst(
first_pair,
bytecode.NumLit(sexp.SNum(1)),
second_pair
)
]
self.assertEqual(expected_instrs, self.bb.instructions)
def test_emit_global_function_call(self) -> None:
prog = sexp.parse('(number? 1)')
self.expr_emitter.visit(prog)
func_var = bytecode.Var('v0')
typeof_var = bytecode.Var('v1')
is_function_var = bytecode.Var('v2')
arity_var = bytecode.Var('v3')
correct_arity_var = bytecode.Var('v4')
expected_instrs = [
bytecode.LookupInst(
func_var, bytecode.SymLit(sexp.SSym('number?'))
),
bytecode.TypeofInst(typeof_var, func_var),
bytecode.BinopInst(
is_function_var, bytecode.Binop.SYM_EQ,
typeof_var, bytecode.SymLit(sexp.SSym('function'))
),
bytecode.BrnInst(
is_function_var,
bytecode.BasicBlock(
'non_function',
[bytecode.TrapInst('Attempted to call a non-function')])
),
bytecode.ArityInst(arity_var, func_var),
bytecode.BinopInst(
correct_arity_var, bytecode.Binop.NUM_EQ,
arity_var, bytecode.NumLit(sexp.SNum(1))
),
bytecode.BrnInst(
correct_arity_var,
bytecode.BasicBlock(
'wrong_arity',
[bytecode.TrapInst(
'Call with the wrong number of arguments')])
),
bytecode.CallInst(
bytecode.Var('v5'),
func_var,
[bytecode.NumLit(sexp.SNum(1))]
),
]
self.assertEqual(expected_instrs, self.bb.instructions)
def test_emit_local_var_function_call(self) -> None:
prog = sexp.parse('(local_var 42)')
lambda_var = bytecode.Var('local_var')
self.expr_emitter.local_env[sexp.SSym('local_var')] = lambda_var
self.expr_emitter.visit(prog)
typeof_var = bytecode.Var('v0')
is_function_var = bytecode.Var('v1')
arity_var = bytecode.Var('v2')
correct_arity_var = bytecode.Var('v3')
expected_instrs = [
bytecode.TypeofInst(typeof_var, lambda_var),
bytecode.BinopInst(
is_function_var, bytecode.Binop.SYM_EQ,
typeof_var, bytecode.SymLit(sexp.SSym('function'))
),
bytecode.BrnInst(
is_function_var,
bytecode.BasicBlock(
'non_function',
[bytecode.TrapInst('Attempted to call a non-function')])
),
bytecode.ArityInst(arity_var, lambda_var),
bytecode.BinopInst(
correct_arity_var, bytecode.Binop.NUM_EQ,
arity_var, bytecode.NumLit(sexp.SNum(1))
),
bytecode.BrnInst(
correct_arity_var,
bytecode.BasicBlock(
'wrong_arity',
[bytecode.TrapInst(
'Call with the wrong number of arguments')])
),
bytecode.CallInst(
bytecode.Var('v4'),
lambda_var,
[bytecode.NumLit(sexp.SNum(42))]
)
]
self.assertEqual(expected_instrs, self.bb.instructions)
def test_lambda_function_called_immediately(self) -> None:
prog = sexp.parse('((lambda (spam) spam) 42)')
self.expr_emitter.visit(prog)
expected_lambda = bytecode.Function(
[bytecode.Var('spam')],
bytecode.BasicBlock(
'bb0', [bytecode.ReturnInst(bytecode.Var('spam'))]
)
)
lambda_lookup_var = bytecode.Var('v0')
typeof_var = bytecode.Var('v1')
is_function_var = bytecode.Var('v2')
arity_var = bytecode.Var('v3')
correct_arity_var = bytecode.Var('v4')
expected_instrs = [
bytecode.LookupInst(
lambda_lookup_var, bytecode.SymLit(sexp.SSym('__lambda0'))
),
bytecode.TypeofInst(typeof_var, lambda_lookup_var),
bytecode.BinopInst(
is_function_var, bytecode.Binop.SYM_EQ,
typeof_var, bytecode.SymLit(sexp.SSym('function'))
),
bytecode.BrnInst(
is_function_var,
bytecode.BasicBlock(
'non_function',
[bytecode.TrapInst('Attempted to call a non-function')])
),
bytecode.ArityInst(arity_var, lambda_lookup_var),
bytecode.BinopInst(
correct_arity_var, bytecode.Binop.NUM_EQ,
arity_var, bytecode.NumLit(sexp.SNum(1))
),
bytecode.BrnInst(
correct_arity_var,
bytecode.BasicBlock(
'wrong_arity',
[bytecode.TrapInst(
'Call with the wrong number of arguments')])
),
bytecode.CallInst(
bytecode.Var('v5'),
lambda_lookup_var,
[bytecode.NumLit(sexp.SNum(42))]
)
]
actual_lambda = (
self.expr_emitter.global_env[sexp.SSym('__lambda0')])
assert isinstance(actual_lambda, sexp.SFunction)
self.assertEqual(expected_lambda, actual_lambda.code)
self.assertEqual(expected_instrs, self.bb.instructions)
def test_emit_conditional(self) -> None:
prog = sexp.parse('(if true 42 43)')
self.expr_emitter.visit(prog)
result_var = bytecode.Var('v0')
self.assertEqual(result_var, self.expr_emitter.result)
self.assertIsNot(
self.expr_emitter.parent_block, self.expr_emitter.end_block)
expected_end_block = bytecode.BasicBlock('bb3')
expected_else_block = bytecode.BasicBlock(
'bb2',
[
bytecode.CopyInst(
result_var, bytecode.NumLit(sexp.SNum(43))
),
bytecode.JmpInst(expected_end_block)
]
)
expected_then_block = bytecode.BasicBlock(
'bb1',
[
bytecode.CopyInst(
result_var, bytecode.NumLit(sexp.SNum(42))
),
bytecode.JmpInst(expected_end_block)
]
)
expected_parent_block = bytecode.BasicBlock(
'bb0',
[
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(True)),
expected_then_block
),
bytecode.JmpInst(expected_else_block)
]
)
self.assertEqual(expected_parent_block, self.expr_emitter.parent_block)
self.assertEqual(expected_end_block, self.expr_emitter.end_block)
def test_nested_conditionals(self) -> None:
prog = sexp.parse('(if true (if false 42 43) (if true 44 45))')
self.expr_emitter.visit(prog)
outer_result_var = bytecode.Var('v0')
outer_end_block = bytecode.BasicBlock('bb9')
then_result_var = bytecode.Var('v1')
then_end_block = bytecode.BasicBlock(
'bb5',
[
bytecode.CopyInst(outer_result_var, then_result_var),
bytecode.JmpInst(outer_end_block)
]
)
then_then_block = bytecode.BasicBlock(
'bb3',
[
bytecode.CopyInst(
then_result_var, bytecode.NumLit(sexp.SNum(42))
),
bytecode.JmpInst(then_end_block)
]
)
then_else_block = bytecode.BasicBlock(
'bb4',
[
bytecode.CopyInst(
then_result_var, bytecode.NumLit(sexp.SNum(43))
),
bytecode.JmpInst(then_end_block)
]
)
else_result_var = bytecode.Var('v2')
else_end_block = bytecode.BasicBlock(
'bb8',
[
bytecode.CopyInst(outer_result_var, else_result_var),
bytecode.JmpInst(outer_end_block)
]
)
else_then_block = bytecode.BasicBlock(
'bb6',
[
bytecode.CopyInst(
else_result_var, bytecode.NumLit(sexp.SNum(44))
),
bytecode.JmpInst(else_end_block)
]
)
else_else_block = bytecode.BasicBlock(
'bb7',
[
bytecode.CopyInst(
else_result_var, bytecode.NumLit(sexp.SNum(45))
),
bytecode.JmpInst(else_end_block)
]
)
then_block = bytecode.BasicBlock(
'bb1',
[
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(False)), then_then_block
),
bytecode.JmpInst(then_else_block)
]
)
else_block = bytecode.BasicBlock(
'bb2',
[
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(True)), else_then_block
),
bytecode.JmpInst(else_else_block)
]
)
entry_block = bytecode.BasicBlock(
'bb0',
[
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(True)), then_block
),
bytecode.JmpInst(else_block)
]
)
self.assertEqual(entry_block, self.expr_emitter.parent_block)
self.assertEqual(outer_end_block, self.expr_emitter.end_block)
self.assertEqual(outer_result_var, self.expr_emitter.result)
def test_conditional_in_conditional_test_expr(self) -> None:
prog = sexp.parse('(if (if true false true) 42 43)')
self.expr_emitter.visit(prog)
end_block = bytecode.BasicBlock('bb6')
body_result = bytecode.Var('v1')
body_then_block = bytecode.BasicBlock(
'bb4',
[
bytecode.CopyInst(
body_result, bytecode.NumLit(sexp.SNum(42))
),
bytecode.JmpInst(end_block)
]
)
body_else_block = bytecode.BasicBlock(
'bb5',
[
bytecode.CopyInst(
body_result, bytecode.NumLit(sexp.SNum(43))
),
bytecode.JmpInst(end_block)
]
)
condition_result = bytecode.Var('v0')
condition_end_block = bytecode.BasicBlock(
'bb3',
[
bytecode.BrInst(condition_result, body_then_block),
bytecode.JmpInst(body_else_block)
]
)
condition_then_block = bytecode.BasicBlock(
'bb1',
[
bytecode.CopyInst(
condition_result, bytecode.BoolLit(sexp.SBool(False))
),
bytecode.JmpInst(condition_end_block)
]
)
condition_else_block = bytecode.BasicBlock(
'bb2',
[
bytecode.CopyInst(
condition_result, bytecode.BoolLit(sexp.SBool(True))
),
bytecode.JmpInst(condition_end_block)
]
)
entry_block = bytecode.BasicBlock(
'bb0',
[
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(True)), condition_then_block
),
bytecode.JmpInst(condition_else_block)
]
)
self.assertEqual(entry_block, self.expr_emitter.parent_block)
self.assertEqual(end_block, self.expr_emitter.end_block)
self.assertEqual(body_result, self.expr_emitter.result)
def test_conditional_in_function_call_args(self) -> None:
prog = sexp.parse('(number? (if true 42 false))')
self.expr_emitter.visit(prog)
end_block = bytecode.BasicBlock('bb3')
func_var = bytecode.Var('v0')
typeof_var = bytecode.Var('v1')
is_function_var = bytecode.Var('v2')
arity_var = bytecode.Var('v3')
correct_arity_var = bytecode.Var('v4')
conditional_result = bytecode.Var('v5')
call_result = bytecode.Var('v6')
then_block = bytecode.BasicBlock(
'bb1',
[
bytecode.CopyInst(
conditional_result, bytecode.NumLit(sexp.SNum(42))
),
bytecode.JmpInst(end_block)
]
)
else_block = bytecode.BasicBlock(
'bb2',
[
bytecode.CopyInst(
conditional_result, bytecode.BoolLit(sexp.SBool(False))
),
bytecode.JmpInst(end_block)
]
)
entry_block = bytecode.BasicBlock(
'bb0',
[
bytecode.LookupInst(
func_var, bytecode.SymLit(sexp.SSym('number?'))
),
bytecode.TypeofInst(typeof_var, func_var),
bytecode.BinopInst(
is_function_var, bytecode.Binop.SYM_EQ,
typeof_var, bytecode.SymLit(sexp.SSym('function'))
),
bytecode.BrnInst(
is_function_var,
bytecode.BasicBlock(
'non_function',
[bytecode.TrapInst(
'Attempted to call a non-function')])
),
bytecode.ArityInst(arity_var, func_var),
bytecode.BinopInst(
correct_arity_var, bytecode.Binop.NUM_EQ,
arity_var, bytecode.NumLit(sexp.SNum(1))
),
bytecode.BrnInst(
correct_arity_var,
bytecode.BasicBlock(
'wrong_arity',
[bytecode.TrapInst(
'Call with the wrong number of arguments')])
),
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(True)), then_block
),
bytecode.JmpInst(else_block)
]
)
end_block.add_inst(
bytecode.CallInst(call_result, func_var, [conditional_result]))
self.assertEqual(entry_block, self.expr_emitter.parent_block)
self.assertEqual(end_block, self.expr_emitter.end_block)
self.assertEqual(call_result, self.expr_emitter.result)
def test_conditional_in_function_call_func(self) -> None:
prog = sexp.parse('((if true func1 func2))')
self.expr_emitter.local_env[sexp.SSym('func1')] = (
bytecode.Var('spam'))
self.expr_emitter.local_env[sexp.SSym('func2')] = (
bytecode.Var('egg'))
self.expr_emitter.visit(prog)
end_block = bytecode.BasicBlock('bb3')
conditional_result = bytecode.Var('v0')
typeof_var = bytecode.Var('v1')
is_function_var = bytecode.Var('v2')
arity_var = bytecode.Var('v3')
correct_arity_var = bytecode.Var('v4')
call_result = bytecode.Var('v5')
then_block = bytecode.BasicBlock(
'bb1',
[
bytecode.CopyInst(
conditional_result, bytecode.Var('spam')
),
bytecode.JmpInst(end_block)
]
)
else_block = bytecode.BasicBlock(
'bb2',
[
bytecode.CopyInst(
conditional_result, bytecode.Var('egg')
),
bytecode.JmpInst(end_block)
]
)
entry_block = bytecode.BasicBlock(
'bb0',
[
bytecode.BrInst(
bytecode.BoolLit(sexp.SBool(True)), then_block
),
bytecode.JmpInst(else_block)
]
)
call_instrs = [
bytecode.TypeofInst(typeof_var, conditional_result),
bytecode.BinopInst(
is_function_var, bytecode.Binop.SYM_EQ,
typeof_var, bytecode.SymLit(sexp.SSym('function'))
),
bytecode.BrnInst(
is_function_var,
bytecode.BasicBlock(
'non_function',
[bytecode.TrapInst('Attempted to call a non-function')])
),
bytecode.ArityInst(arity_var, conditional_result),
bytecode.BinopInst(
correct_arity_var, bytecode.Binop.NUM_EQ,
arity_var, bytecode.NumLit(sexp.SNum(0))
),
bytecode.BrnInst(
correct_arity_var,
bytecode.BasicBlock(
'wrong_arity',
[bytecode.TrapInst(
'Call with the wrong number of arguments')])
),
bytecode.CallInst(call_result, conditional_result, [])
]
for instr in call_instrs:
end_block.add_inst(instr)
self.assertEqual(entry_block, self.expr_emitter.parent_block)
self.assertEqual(end_block, self.expr_emitter.end_block)
self.assertEqual(call_result, self.expr_emitter.result)
class EmitFunctionDefTestCase(unittest.TestCase):
function_emitter: emit_IR.FunctionEmitter
def setUp(self) -> None:
self.function_emitter = emit_IR.FunctionEmitter({})
def test_emit_function_def(self) -> None:
prog = sexp.parse('(define (func spam) true spam)')
self.function_emitter.visit(prog)
return_var = bytecode.Var('spam')
expected = bytecode.Function(
[return_var],
bytecode.BasicBlock(
'bb0', [bytecode.ReturnInst(return_var)]
)
)
self.assertEqual(expected, self.function_emitter.get_emitted_func())
def test_emit_multiple_function_defs(self) -> None:
prog = sexp.parse('(define (func) 42) (define (func2) 43)')
self.function_emitter.visit(prog[0])
expected_func = bytecode.Function(
[],
bytecode.BasicBlock(
'bb0',
[bytecode.ReturnInst(bytecode.NumLit(sexp.SNum(42)))]
)
)
self.assertEqual(
expected_func, self.function_emitter.get_emitted_func())
self.function_emitter.visit(prog[1])
expected_func2 = bytecode.Function(
[],
bytecode.BasicBlock(
'bb0',
[bytecode.ReturnInst(bytecode.NumLit(sexp.SNum(43)))]
)
)
self.assertEqual(
expected_func2, self.function_emitter.get_emitted_func())
def test_emit_lambda_def(self) -> None:
prog = sexp.parse('(define (func) (lambda (spam) spam))')
self.function_emitter.visit(prog)
func_ret_var = bytecode.Var('v0')
expected_func = bytecode.Function(
[],
bytecode.BasicBlock(
'bb0',
[
bytecode.LookupInst(
func_ret_var, bytecode.SymLit(sexp.SSym('__lambda0'))
),
bytecode.ReturnInst(func_ret_var)
]
)
)
expected_lambda = bytecode.Function(
[bytecode.Var('spam')],
bytecode.BasicBlock(
'bb0', [bytecode.ReturnInst(bytecode.Var('spam'))]
)
)
self.assertEqual(expected_func,
self.function_emitter.get_emitted_func())
actual_lambda = (
self.function_emitter.global_env[sexp.SSym('__lambda0')])
assert isinstance(actual_lambda, sexp.SFunction)
self.assertEqual(expected_lambda, actual_lambda.code)
def test_emit_begin_in_func(self) -> None:
self.maxDiff = None
prog = sexp.parse('(define (spam) (begin (trace 42) (trace 43) 44))')
self.function_emitter.visit(prog)
expected = '''
function (?) entry=bb0
bb0:
v0 = lookup 'trace
v1 = typeof v0
v2 = Binop.SYM_EQ v1 'function
brn v2 non_function
v3 = arity v0
v4 = Binop.NUM_EQ v3 1
brn v4 wrong_arity
v5 = call v0 (42)
v6 = lookup 'trace
v7 = typeof v6
v8 = Binop.SYM_EQ v7 'function
brn v8 non_function
v9 = arity v6
v10 = Binop.NUM_EQ v9 1
brn v10 wrong_arity
v11 = call v6 (43)
return 44
non_function:
trap 'Attempted to call a non-function'
wrong_arity:
trap 'Call with the wrong number of arguments'
'''
self.assertEqual(
expected.strip(),
str(self.function_emitter.get_emitted_func()).strip())
class EmitOptimizedFuncTestCase(unittest.TestCase):
env: bytecode.EvalEnv
def setUp(self) -> None:
self.env = bytecode.EvalEnv()
runner.add_intrinsics(self.env)
runner.add_builtins(self.env)
runner.add_prelude(self.env)
def get_optimized_func_bytecode(
self, code_str: str,
param_types: Optional[Dict[sexp.SSym,
scheme_types.SchemeObjectType]] = None,
optimize_tail_calls: bool = False) -> str:
[func] = sexp.parse(code_str)
assert isinstance(func, sexp.SFunction)
tail_calls = None
if optimize_tail_calls:
tail_call_finder = find_tail_calls.TailCallFinder()
tail_call_finder.visit(func)
tail_calls = tail_call_finder.tail_calls
# Make sure func is in global env
emitter = emit_IR.FunctionEmitter(self.env._global_env)
emitter.visit(func)
func.code = emitter.get_emitted_func()
self.env._global_env[func.name] = func
type_analyzer = None
if param_types is not None:
type_analyzer = scheme_types.FunctionTypeAnalyzer(
param_types=param_types,
global_env=self.env._global_env)
type_analyzer.visit(func)
optimizing_emitter = emit_IR.FunctionEmitter(
self.env._global_env,
tail_calls=tail_calls,
expr_types=type_analyzer)
optimizing_emitter.visit(func)
return str(optimizing_emitter.get_emitted_func())
# -------------------------------------------------------------------------
def test_partially_specialized_plus(self) -> None:
code = '''
(define (plus first second)
(assert (number? first))
(assert (number? second))
(inst/+ first second)
)'''
optimized = self.get_optimized_func_bytecode(
code,
param_types={
sexp.SSym('first'): scheme_types.SchemeNum,
sexp.SSym('second'): scheme_types.SchemeObject
}
)
expected = '''
function (? first second) entry=bb0
bb0:
v0 = lookup 'assert
v1 = lookup 'number?
v2 = call v1 (second) (object)
v3 = call v0 (v2) (bool)
v4 = lookup 'inst/+
v5 = call v4 (first, second) (number, object)
return v5
'''
self.assertEqual(expected.strip(), optimized.strip())
# -------------------------------------------------------------------------
def test_fully_specialized_plus(self) -> None:
code = '''
(define (plus first second)
(assert (number? first))
(assert (number? second))
(inst/+ first second)
)'''
optimized = self.get_optimized_func_bytecode(
code,
param_types={
sexp.SSym('first'): scheme_types.SchemeNum,
sexp.SSym('second'): scheme_types.SchemeNum
}
)
expected = '''
function (? first second) entry=bb0
bb0:
v0 = lookup 'inst/+
v1 = call v0 (first, second) (number, number)
return v1
'''
self.assertEqual(expected.strip(), optimized.strip())
# -------------------------------------------------------------------------
def test_fully_specialized_plus_args_are_exprs(self) -> None:
code = '''
(define (plus first second)
(assert (number? first))
(assert (number? second))
(inst/+ (+ 1 first) (+ second 1))
)'''
optimized = self.get_optimized_func_bytecode(
code,
param_types={
sexp.SSym('first'): scheme_types.SchemeNum,
sexp.SSym('second'): scheme_types.SchemeNum
}
)
expected = '''
function (? first second) entry=bb0
bb0:
v0 = lookup 'inst/+
v1 = lookup '+
v2 = call v1 (1, first) (number, number)
v3 = lookup '+
v4 = call v3 (second, 1) (number, number)
v5 = call v0 (v2, v4) (number, number)
return v5
'''
self.assertEqual(expected.strip(), optimized.strip())
# -------------------------------------------------------------------------
def test_specialize_in_bounds_vector_access(self) -> None:
code = '''
(define (pairy pair)
(vector-index pair 0)
(vector-set! pair 1 42)
)'''
optimized = self.get_optimized_func_bytecode(
code,
param_types={
sexp.SSym('pair'): scheme_types.SchemeVectType(2),
}
)
expected = '''
function (? pair) entry=bb0
bb0:
v0 = lookup 'inst/load
v1 = call v0 (pair, 0) (vector[2], number)
v2 = lookup 'inst/store
v3 = call v2 (pair, 1, 42) (vector[2], number, number)
return v3
'''
self.assertEqual(expected.strip(), optimized.strip())
def test_out_of_bounds_vector_access_checks_not_removed(self) -> None:
code = '''
(define (pairy pair)
(vector-index pair 2)
(vector-set! pair 2 42)
(vector-index pair -1)
(vector-set! pair -1 42)
)'''
optimized = self.get_optimized_func_bytecode(
code,
param_types={
sexp.SSym('pair'): scheme_types.SchemeVectType(2),
}
)
expected = '''
function (? pair) entry=bb0
bb0:
v0 = lookup 'vector-index
v1 = call v0 (pair, 2) (vector[2], number)
v2 = lookup 'vector-set!
v3 = call v2 (pair, 2, 42) (vector[2], number, number)
v4 = lookup 'vector-index
v5 = call v4 (pair, -1) (vector[2], number)
v6 = lookup 'vector-set!
v7 = call v6 (pair, -1, 42) (vector[2], number, number)
return v7
'''
self.assertEqual(expected.strip(), optimized.strip())
def test_non_constant_index_checks_not_removed(self) -> None:
code = '''
(define (pairy pair)
(vector-index pair index)
(vector-set! pair index 42)
)'''
optimized = self.get_optimized_func_bytecode(
code,
param_types={
sexp.SSym('pair'): scheme_types.SchemeVectType(2),
}
)
expected = '''
function (? pair) entry=bb0
bb0:
v0 = lookup 'vector-index
v1 = lookup 'index
v2 = call v0 (pair, v1) (vector[2], object)
v3 = lookup 'vector-set!
v4 = lookup 'index
v5 = call v3 (pair, v4, 42) (vector[2], object, number)
return v5
'''
self.assertEqual(expected.strip(), optimized.strip())
def test_vector_access_unknown_vector_size(self) -> None:
code = '''
(define (pairy pair)
(vector-index pair 0)
(vector-set! pair 1 42)
)'''
optimized = self.get_optimized_func_bytecode(