It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/bugpoint.cpp b/tools/bugpoint/bugpoint.cpp
new file mode 100644
index 0000000..c345143
--- /dev/null
+++ b/tools/bugpoint/bugpoint.cpp
@@ -0,0 +1,94 @@
+//===- bugpoint.cpp - The LLVM Bugpoint utility ---------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This program is an automated compiler debugger tool. It is used to narrow
+// down miscompilations and crash problems to a specific pass in the compiler,
+// and the specific Module or Function input that is causing the problem.
+//
+//===----------------------------------------------------------------------===//
+
+#include "BugDriver.h"
+#include "ToolRunner.h"
+#include "llvm/LinkAllPasses.h"
+#include "llvm/Support/PassNameParser.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/PluginLoader.h"
+#include "llvm/System/Process.h"
+#include "llvm/System/Signals.h"
+#include "llvm/LinkAllVMCore.h"
+#include <iostream>
+using namespace llvm;
+
+// AsChild - Specifies that this invocation of bugpoint is being generated
+// from a parent process. It is not intended to be used by users so the
+// option is hidden.
+static cl::opt<bool>
+AsChild("as-child", cl::desc("Run bugpoint as child process"),
+ cl::ReallyHidden);
+
+static cl::opt<bool>
+FindBugs("find-bugs", cl::desc("Run many different optimization sequences"
+ "on program to find bugs"), cl::init(false));
+
+static cl::list<std::string>
+InputFilenames(cl::Positional, cl::OneOrMore,
+ cl::desc("<input llvm ll/bc files>"));
+
+static cl::opt<unsigned>
+TimeoutValue("timeout", cl::init(300), cl::value_desc("seconds"),
+ cl::desc("Number of seconds program is allowed to run before it "
+ "is killed (default is 300s), 0 disables timeout"));
+
+static cl::opt<unsigned>
+MemoryLimit("mlimit", cl::init(100), cl::value_desc("MBytes"),
+ cl::desc("Maximum amount of memory to use. 0 disables check."));
+
+// The AnalysesList is automatically populated with registered Passes by the
+// PassNameParser.
+//
+static cl::list<const PassInfo*, bool, PassNameParser>
+PassList(cl::desc("Passes available:"), cl::ZeroOrMore);
+
+/// BugpointIsInterrupted - Set to true when the user presses ctrl-c.
+bool llvm::BugpointIsInterrupted = false;
+
+static void BugpointInterruptFunction() {
+ BugpointIsInterrupted = true;
+}
+
+int main(int argc, char **argv) {
+ llvm_shutdown_obj X; // Call llvm_shutdown() on exit.
+ cl::ParseCommandLineOptions(argc, argv,
+ " LLVM automatic testcase reducer. See\nhttp://"
+ "llvm.org/docs/CommandGuide/bugpoint.html"
+ " for more information.\n");
+ sys::PrintStackTraceOnErrorSignal();
+ sys::SetInterruptFunction(BugpointInterruptFunction);
+
+ BugDriver D(argv[0], AsChild, FindBugs, TimeoutValue, MemoryLimit);
+ if (D.addSources(InputFilenames)) return 1;
+ D.addPasses(PassList.begin(), PassList.end());
+
+ // Bugpoint has the ability of generating a plethora of core files, so to
+ // avoid filling up the disk, we prevent it
+ sys::Process::PreventCoreFiles();
+
+ try {
+ return D.run();
+ } catch (ToolExecutionError &TEE) {
+ std::cerr << "Tool execution error: " << TEE.what() << '\n';
+ } catch (const std::string& msg) {
+ std::cerr << argv[0] << ": " << msg << "\n";
+ } catch (...) {
+ std::cerr << "Whoops, an exception leaked out of bugpoint. "
+ << "This is a bug in bugpoint!\n";
+ }
+ return 1;
+}