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*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
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llvm-svn: 280751
142 lines
4.4 KiB
Python
142 lines
4.4 KiB
Python
"""Test evaluating expressions repeatedly comparing lldb against gdb."""
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from __future__ import print_function
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import os
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import sys
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import lldb
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from lldbsuite.test.lldbbench import BenchBase
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import configuration
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from lldbsuite.test import lldbutil
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class RepeatedExprsCase(BenchBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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BenchBase.setUp(self)
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self.source = 'main.cpp'
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self.line_to_break = line_number(
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self.source, '// Set breakpoint here.')
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self.lldb_avg = None
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self.gdb_avg = None
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self.count = 100
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@benchmarks_test
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@expectedFailureAll(
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oslist=["windows"],
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bugnumber="llvm.org/pr22274: need a pexpect replacement for windows")
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def test_compare_lldb_to_gdb(self):
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"""Test repeated expressions with lldb vs. gdb."""
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self.build()
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self.exe_name = 'a.out'
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print()
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self.run_lldb_repeated_exprs(self.exe_name, self.count)
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print("lldb benchmark:", self.stopwatch)
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self.run_gdb_repeated_exprs(self.exe_name, self.count)
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print("gdb benchmark:", self.stopwatch)
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print("lldb_avg/gdb_avg: %f" % (self.lldb_avg / self.gdb_avg))
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def run_lldb_repeated_exprs(self, exe_name, count):
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import pexpect
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exe = os.path.join(os.getcwd(), exe_name)
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# Set self.child_prompt, which is "(lldb) ".
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self.child_prompt = '(lldb) '
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn(
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'%s %s %s' %
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(lldbtest_config.lldbExec, self.lldbOption, exe))
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline(
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'breakpoint set -f %s -l %d' %
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(self.source, self.line_to_break))
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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expr_cmd1 = 'expr ptr[j]->point.x'
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expr_cmd2 = 'expr ptr[j]->point.y'
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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with self.stopwatch:
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child.sendline(expr_cmd1)
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child.expect_exact(prompt)
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child.sendline(expr_cmd2)
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child.expect_exact(prompt)
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child.sendline('process continue')
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child.expect_exact(prompt)
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child.sendline('quit')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.lldb_avg = self.stopwatch.avg()
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if self.TraceOn():
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print("lldb expression benchmark:", str(self.stopwatch))
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self.child = None
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def run_gdb_repeated_exprs(self, exe_name, count):
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import pexpect
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exe = os.path.join(os.getcwd(), exe_name)
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# Set self.child_prompt, which is "(gdb) ".
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self.child_prompt = '(gdb) '
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prompt = self.child_prompt
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# So that the child gets torn down after the test.
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self.child = pexpect.spawn('gdb --nx %s' % exe)
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child = self.child
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# Turn on logging for what the child sends back.
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if self.TraceOn():
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child.logfile_read = sys.stdout
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child.expect_exact(prompt)
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child.sendline('break %s:%d' % (self.source, self.line_to_break))
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child.expect_exact(prompt)
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child.sendline('run')
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child.expect_exact(prompt)
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expr_cmd1 = 'print ptr[j]->point.x'
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expr_cmd2 = 'print ptr[j]->point.y'
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# Reset the stopwatch now.
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self.stopwatch.reset()
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for i in range(count):
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with self.stopwatch:
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child.sendline(expr_cmd1)
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child.expect_exact(prompt)
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child.sendline(expr_cmd2)
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child.expect_exact(prompt)
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child.sendline('continue')
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child.expect_exact(prompt)
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child.sendline('quit')
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child.expect_exact('The program is running. Exit anyway?')
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child.sendline('y')
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try:
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self.child.expect(pexpect.EOF)
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except:
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pass
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self.gdb_avg = self.stopwatch.avg()
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if self.TraceOn():
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print("gdb expression benchmark:", str(self.stopwatch))
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self.child = None
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