teak-llvm/lldb/packages/Python/lldbsuite/test/benchmarks/expression/TestRepeatedExprs.py
Zachary Turner 4a289a93f7 Remove expectedFailureWindows decorator.
expectedFailureWindows is equivalent to using the general
expectedFailureAll decorator with oslist="windows".  Additionally,
by moving towards these common decorators we can solve the issue
of having to support decorators that can be called with or without
arguments.  Once all decorators are always called with arguments,
and this is enforced by design (because you can't specify the condition
you're decorating for without passing an argument) the implementation
of the decorators can become much simpler

Differential Revision: http://reviews.llvm.org/D16936

llvm-svn: 260134
2016-02-08 19:34:59 +00:00

134 lines
4.3 KiB
Python

"""Test evaluating expressions repeatedly comparing lldb against gdb."""
from __future__ import print_function
import os, sys
import lldb
from lldbsuite.test.lldbbench import BenchBase
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import configuration
from lldbsuite.test import lldbutil
class RepeatedExprsCase(BenchBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
BenchBase.setUp(self)
self.source = 'main.cpp'
self.line_to_break = line_number(self.source, '// Set breakpoint here.')
self.lldb_avg = None
self.gdb_avg = None
self.count = 100
@benchmarks_test
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr22274: need a pexpect replacement for windows")
def test_compare_lldb_to_gdb(self):
"""Test repeated expressions with lldb vs. gdb."""
self.build()
self.exe_name = 'a.out'
print()
self.run_lldb_repeated_exprs(self.exe_name, self.count)
print("lldb benchmark:", self.stopwatch)
self.run_gdb_repeated_exprs(self.exe_name, self.count)
print("gdb benchmark:", self.stopwatch)
print("lldb_avg/gdb_avg: %f" % (self.lldb_avg/self.gdb_avg))
def run_lldb_repeated_exprs(self, exe_name, count):
import pexpect
exe = os.path.join(os.getcwd(), exe_name)
# Set self.child_prompt, which is "(lldb) ".
self.child_prompt = '(lldb) '
prompt = self.child_prompt
# So that the child gets torn down after the test.
self.child = pexpect.spawn('%s %s %s' % (lldbtest_config.lldbExec, self.lldbOption, exe))
child = self.child
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
child.expect_exact(prompt)
child.sendline('breakpoint set -f %s -l %d' % (self.source, self.line_to_break))
child.expect_exact(prompt)
child.sendline('run')
child.expect_exact(prompt)
expr_cmd1 = 'expr ptr[j]->point.x'
expr_cmd2 = 'expr ptr[j]->point.y'
# Reset the stopwatch now.
self.stopwatch.reset()
for i in range(count):
with self.stopwatch:
child.sendline(expr_cmd1)
child.expect_exact(prompt)
child.sendline(expr_cmd2)
child.expect_exact(prompt)
child.sendline('process continue')
child.expect_exact(prompt)
child.sendline('quit')
try:
self.child.expect(pexpect.EOF)
except:
pass
self.lldb_avg = self.stopwatch.avg()
if self.TraceOn():
print("lldb expression benchmark:", str(self.stopwatch))
self.child = None
def run_gdb_repeated_exprs(self, exe_name, count):
import pexpect
exe = os.path.join(os.getcwd(), exe_name)
# Set self.child_prompt, which is "(gdb) ".
self.child_prompt = '(gdb) '
prompt = self.child_prompt
# So that the child gets torn down after the test.
self.child = pexpect.spawn('gdb --nx %s' % exe)
child = self.child
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
child.expect_exact(prompt)
child.sendline('break %s:%d' % (self.source, self.line_to_break))
child.expect_exact(prompt)
child.sendline('run')
child.expect_exact(prompt)
expr_cmd1 = 'print ptr[j]->point.x'
expr_cmd2 = 'print ptr[j]->point.y'
# Reset the stopwatch now.
self.stopwatch.reset()
for i in range(count):
with self.stopwatch:
child.sendline(expr_cmd1)
child.expect_exact(prompt)
child.sendline(expr_cmd2)
child.expect_exact(prompt)
child.sendline('continue')
child.expect_exact(prompt)
child.sendline('quit')
child.expect_exact('The program is running. Exit anyway?')
child.sendline('y')
try:
self.child.expect(pexpect.EOF)
except:
pass
self.gdb_avg = self.stopwatch.avg()
if self.TraceOn():
print("gdb expression benchmark:", str(self.stopwatch))
self.child = None