Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

3 files changed, 110 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/Makefile
new file mode 100644
index 00000000000..99998b20bcb
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/Makefile
@@ -0,0 +1,3 @@
+CXX_SOURCES := main.cpp
+
+include Makefile.rules
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/TestValueObjectRecursion.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/TestValueObjectRecursion.py
new file mode 100644
index 00000000000..e949f1a1a07
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/TestValueObjectRecursion.py
@@ -0,0 +1,67 @@
+"""
+Test lldb data formatter subsystem.
+"""
+
+from __future__ import print_function
+
+
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+
+class ValueObjectRecursionTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break at.
+        self.line = line_number('main.cpp', '// Set break point at this line.')
+
+    def test_with_run_command(self):
+        """Test that deeply nested ValueObjects still work."""
+        self.build()
+        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
+
+        lldbutil.run_break_set_by_file_and_line(
+            self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # The stop reason of the thread should be breakpoint.
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+                    substrs=['stopped',
+                             'stop reason = breakpoint'])
+
+        # This is the function to remove the custom formats in order to have a
+        # clean slate for the next test case.
+        def cleanup():
+            self.runCmd('type format clear', check=False)
+            self.runCmd('type summary clear', check=False)
+
+        # Execute the cleanup function during test case tear down.
+        self.addTearDownHook(cleanup)
+
+        root = self.frame().FindVariable("root")
+        child = root.GetChildAtIndex(1)
+        if self.TraceOn():
+            print(root)
+            print(child)
+        for i in range(0, 15000):
+            child = child.GetChildAtIndex(1)
+        if self.TraceOn():
+            print(child)
+        self.assertTrue(
+            child.IsValid(),
+            "could not retrieve the deep ValueObject")
+        self.assertTrue(
+            child.GetChildAtIndex(0).IsValid(),
+            "the deep ValueObject has no value")
+        self.assertTrue(
+            child.GetChildAtIndex(0).GetValueAsUnsigned() != 0,
+            "the deep ValueObject has a zero value")
+        self.assertTrue(
+            child.GetChildAtIndex(1).GetValueAsUnsigned() != 0,
+            "the deep ValueObject has no next")
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/main.cpp b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/main.cpp
new file mode 100644
index 00000000000..bd5278ace7d
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/recursion/main.cpp
@@ -0,0 +1,40 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+struct node;
+struct node {
+	int value;
+	node* next;
+	node () : value(1),next(NULL) {}
+	node (int v) : value(v), next(NULL) {}
+};
+
+void make_tree(node* root, int count)
+{
+	int countdown=1;
+	if (!root)
+		return;
+	root->value = countdown;
+	while (count > 0)
+	{
+		root->next = new node(++countdown);
+		root = root->next;
+		count--;
+	}
+}
+
+int main (int argc, const char * argv[])
+{
+	node root(1);
+	make_tree(&root,25000);
+	return 0; // Set break point at this line.
+}