vendor/lldb/lldb-trunk-r256945

4 files changed, 258 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/benchmarks/expression/Makefile b/packages/Python/lldbsuite/test/benchmarks/expression/Makefile
new file mode 100644
index 0000000000000..8a7102e347af2
--- /dev/null
+++ b/packages/Python/lldbsuite/test/benchmarks/expression/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/benchmarks/expression/TestExpressionCmd.py b/packages/Python/lldbsuite/test/benchmarks/expression/TestExpressionCmd.py
new file mode 100644
index 0000000000000..abf45147d6360
--- /dev/null
+++ b/packages/Python/lldbsuite/test/benchmarks/expression/TestExpressionCmd.py
@@ -0,0 +1,72 @@
+"""Test lldb's expression evaluations and collect statistics."""
+
+from __future__ import print_function
+
+
+
+import os, sys
+import lldb
+from lldbsuite.test import configuration
+from lldbsuite.test.lldbbench import *
+
+class ExpressionEvaluationCase(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.count = 25
+
+    @benchmarks_test
+    @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    def test_expr_cmd(self):
+        """Test lldb's expression commands and collect statistics."""
+        self.build()
+        self.exe_name = 'a.out'
+
+        print()
+        self.run_lldb_repeated_exprs(self.exe_name, self.count)
+        print("lldb expr cmd benchmark:", self.stopwatch)
+
+    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
+
+        # Reset the stopwatch now.
+        self.stopwatch.reset()
+        for i in range(count):
+            # 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'
+
+            with self.stopwatch:
+                child.sendline(expr_cmd1)
+                child.expect_exact(prompt)
+                child.sendline(expr_cmd2)
+                child.expect_exact(prompt)
+
+            child.sendline('quit')
+            try:
+                self.child.expect(pexpect.EOF)
+            except:
+                pass
+
+        self.child = None
diff --git a/packages/Python/lldbsuite/test/benchmarks/expression/TestRepeatedExprs.py b/packages/Python/lldbsuite/test/benchmarks/expression/TestRepeatedExprs.py
new file mode 100644
index 0000000000000..e5cada3563faf
--- /dev/null
+++ b/packages/Python/lldbsuite/test/benchmarks/expression/TestRepeatedExprs.py
@@ -0,0 +1,130 @@
+"""Test evaluating expressions repeatedly comparing lldb against gdb."""
+
+from __future__ import print_function
+
+
+
+import os, sys
+import lldb
+from lldbsuite.test import configuration
+from lldbsuite.test.lldbbench import *
+
+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
+    @expectedFailureWindows("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
diff --git a/packages/Python/lldbsuite/test/benchmarks/expression/main.cpp b/packages/Python/lldbsuite/test/benchmarks/expression/main.cpp
new file mode 100644
index 0000000000000..8f2706e26388a
--- /dev/null
+++ b/packages/Python/lldbsuite/test/benchmarks/expression/main.cpp
@@ -0,0 +1,51 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <stdio.h>
+
+class Point {
+public:
+    int x;
+    int y;
+    Point(int a, int b):
+        x(a),
+        y(b)
+    {}
+};
+
+class Data {
+public:
+    int id;
+    Point point;
+    Data(int i):
+        id(i),
+        point(0, 0)
+    {}
+};
+
+int main(int argc, char const *argv[]) {
+    Data *data[1000];
+    Data **ptr = data;
+    for (int i = 0; i < 1000; ++i) {
+        ptr[i] = new Data(i);
+        ptr[i]->point.x = i;
+        ptr[i]->point.y = i+1;
+    }
+
+    printf("Finished populating data.\n");
+    for (int j = 0; j < 1000; ++j) {
+        bool dump = argc > 1; // Set breakpoint here.
+                              // Evaluate a couple of expressions (2*1000 = 2000 exprs):
+                              // expr ptr[j]->point.x
+                              // expr ptr[j]->point.y
+        if (dump) {
+            printf("data[%d] = %d (%d, %d)\n", j, ptr[j]->id, ptr[j]->point.x, ptr[j]->point.y);
+        }
+    }
+    return 0;
+}