Author: Hakan Ardo <[email protected]>
Branch: jit-usable_retrace_3
Changeset: r60065:9f0bb0453773
Date: 2013-01-14 18:47 +0100
http://bitbucket.org/pypy/pypy/changeset/9f0bb0453773/
Log: generate random bytecodes
diff --git a/pypy/jit/metainterp/test/test_random_loops.py
b/pypy/jit/metainterp/test/test_random_loops.py
--- a/pypy/jit/metainterp/test/test_random_loops.py
+++ b/pypy/jit/metainterp/test/test_random_loops.py
@@ -1,5 +1,6 @@
from pypy.jit.metainterp.test.support import LLJitMixin
from pypy.rlib.jit import JitDriver
+from random import choice, randrange
import re
class IntBox(object):
@@ -30,6 +31,7 @@
class RandomLoopBase(object):
def check(self, bytecode, args=(0,0,0,0,0), max_back_jumps=-1, **kwargs):
+ print 'check:', bytecode, args, max_back_jumps
bytecode = re.subn('\s', '', bytecode)[0]
offsets = self.offsets(bytecode)
assert len(args) == 5
@@ -142,6 +144,53 @@
offsets[start_pc] = offsets[pc] = pc - start_pc
return offsets
+ def variable(self):
+ return choice('abcde')
+
+ def constant(self):
+ return choice('0123456789')
+
+ def value(self):
+ return choice([self.variable, self.constant])()
+
+ def binop(self):
+ return self.value() + self.value() + choice('+-') +
self.variable().upper()
+
+ def break_loop(self):
+ return 'x'
+
+ def compare(self):
+ return self.value() + self.value() + choice('<>=')
+
+ def do_while(self):
+ self.levels -= 1
+ code = '{' + self.block() + self.compare() + '}'
+ self.levels += 1
+ return code
+
+ def if_block(self):
+ self.levels -= 1
+ code = self.compare() + '(' + self.block() + ')'
+ self.levels += 1
+ return code
+
+ def if_else_block(self):
+ self.levels -= 1
+ code = self.compare() + '(' + self.block() + ')(' + self.block() + ')'
+ self.levels += 1
+ return code
+
+ def block(self):
+ stmts = [self.break_loop] + [self.binop] * 5
+ if self.levels:
+ stmts += [self.do_while, self.if_block, self.if_else_block]
+ return ''.join(choice(stmts)() for i in
xrange(randrange(self.max_stmts_per_block)))
+
+ def random_loop(self, max_stmts_per_block=10, max_levels=5):
+ self.max_stmts_per_block = max_stmts_per_block
+ self.levels = max_levels
+ return '{{' + self.block() + '1}1}'
+
class BaseTests(RandomLoopBase):
def test_basic(self):
@@ -175,5 +224,10 @@
def test_jump_limit(self):
self.check('0A{a1+A1}', max_back_jumps=10, a=10)
+ def test_random_bytecode(self):
+ for i in xrange(1000):
+ yield self.check, self.random_loop(), [randrange(100) for i in
xrange(5)], 1000
+
+
class TestLLtype(BaseTests, LLJitMixin):
pass
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