Merge commit '7dfcb84fc16b3bf6b2379713b53090757f0a45f9'

Conflicts:
	docs/LangRef.rst
	include/llvm/CodeGen/CallingConvLower.h
	include/llvm/IRReader/IRReader.h
	include/llvm/Target/TargetMachine.h
	lib/CodeGen/CallingConvLower.cpp
	lib/IRReader/IRReader.cpp
	lib/IRReader/LLVMBuild.txt
	lib/IRReader/Makefile
	lib/LLVMBuild.txt
	lib/Makefile
	lib/Support/MemoryBuffer.cpp
	lib/Support/Unix/PathV2.inc
	lib/Target/ARM/ARMBaseInstrInfo.cpp
	lib/Target/ARM/ARMISelLowering.cpp
	lib/Target/ARM/ARMInstrInfo.td
	lib/Target/ARM/ARMSubtarget.cpp
	lib/Target/ARM/ARMTargetMachine.cpp
	lib/Target/Mips/CMakeLists.txt
	lib/Target/Mips/MipsDelaySlotFiller.cpp
	lib/Target/Mips/MipsISelLowering.cpp
	lib/Target/Mips/MipsInstrInfo.td
	lib/Target/Mips/MipsSubtarget.cpp
	lib/Target/Mips/MipsSubtarget.h
	lib/Target/X86/X86FastISel.cpp
	lib/Target/X86/X86ISelDAGToDAG.cpp
	lib/Target/X86/X86ISelLowering.cpp
	lib/Target/X86/X86InstrControl.td
	lib/Target/X86/X86InstrFormats.td
	lib/Transforms/IPO/ExtractGV.cpp
	lib/Transforms/InstCombine/InstCombineCompares.cpp
	lib/Transforms/Utils/SimplifyLibCalls.cpp
	test/CodeGen/X86/fast-isel-divrem.ll
	test/MC/ARM/data-in-code.ll
	tools/Makefile
	tools/llvm-extract/llvm-extract.cpp
	tools/llvm-link/CMakeLists.txt
	tools/opt/CMakeLists.txt
	tools/opt/LLVMBuild.txt
	tools/opt/Makefile
	tools/opt/opt.cpp

1 files changed, 89 insertions, 0 deletions

diff --git a/unittests/Support/ProgramTest.cpp b/unittests/Support/ProgramTest.cpp
new file mode 100644
index 0000000000..6cbb05454f
--- /dev/null
+++ b/unittests/Support/ProgramTest.cpp
@@ -0,0 +1,89 @@
+//===- unittest/Support/ProgramTest.cpp -----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/Program.h"
+#include "gtest/gtest.h"
+
+#include <stdlib.h>
+#if defined(__APPLE__)
+# include <crt_externs.h>
+#elif !defined(_MSC_VER)
+// Forward declare environ in case it's not provided by stdlib.h.
+extern char **environ;
+#endif
+
+// From TestMain.cpp.
+extern const char *TestMainArgv0;
+
+namespace {
+
+using namespace llvm;
+using namespace sys;
+
+static cl::opt<std::string>
+ProgramTestStringArg1("program-test-string-arg1");
+static cl::opt<std::string>
+ProgramTestStringArg2("program-test-string-arg2");
+
+static void CopyEnvironment(std::vector<const char *> &out) {
+#ifdef __APPLE__
+  char **envp = *_NSGetEnviron();
+#else
+  // environ seems to work for Windows and most other Unices.
+  char **envp = environ;
+#endif
+  while (*envp != 0) {
+    out.push_back(*envp);
+    ++envp;
+  }
+}
+
+TEST(ProgramTest, CreateProcessTrailingSlash) {
+  if (getenv("LLVM_PROGRAM_TEST_CHILD")) {
+    if (ProgramTestStringArg1 == "has\\\\ trailing\\" &&
+        ProgramTestStringArg2 == "has\\\\ trailing\\") {
+      exit(0);  // Success!  The arguments were passed and parsed.
+    }
+    exit(1);
+  }
+
+  Path my_exe = Path::GetMainExecutable(TestMainArgv0, &ProgramTestStringArg1);
+  const char *argv[] = {
+    my_exe.c_str(),
+    "--gtest_filter=ProgramTest.CreateProcessTrailingSlashChild",
+    "-program-test-string-arg1", "has\\\\ trailing\\",
+    "-program-test-string-arg2", "has\\\\ trailing\\",
+    0
+  };
+
+  // Add LLVM_PROGRAM_TEST_CHILD to the environment of the child.
+  std::vector<const char *> envp;
+  CopyEnvironment(envp);
+  envp.push_back("LLVM_PROGRAM_TEST_CHILD=1");
+  envp.push_back(0);
+
+  std::string error;
+  bool ExecutionFailed;
+  // Redirect stdout and stdin to NUL, but let stderr through.
+#ifdef LLVM_ON_WIN32
+  Path nul("NUL");
+#else
+  Path nul("/dev/null");
+#endif
+  const Path *redirects[] = { &nul, &nul, 0 };
+  int rc = Program::ExecuteAndWait(my_exe, argv, &envp[0], redirects,
+                                   /*secondsToWait=*/10, /*memoryLimit=*/0,
+                                   &error, &ExecutionFailed);
+  EXPECT_FALSE(ExecutionFailed) << error;
+  EXPECT_EQ(0, rc);
+}
+
+} // end anonymous namespace