Use the space freed up by sparc and zaurus to import LLVM.

ok hackroom@

1 files changed, 121 insertions, 0 deletions

diff --git a/gnu/llvm/unittests/Support/FileOutputBufferTest.cpp b/gnu/llvm/unittests/Support/FileOutputBufferTest.cpp
new file mode 100644
index 00000000000..090c476e35c
--- /dev/null
+++ b/gnu/llvm/unittests/Support/FileOutputBufferTest.cpp
@@ -0,0 +1,121 @@
+//===- llvm/unittest/Support/FileOutputBuffer.cpp - unit tests ------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FileOutputBuffer.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/raw_ostream.h"
+#include "gtest/gtest.h"
+
+using namespace llvm;
+using namespace llvm::sys;
+
+#define ASSERT_NO_ERROR(x)                                                     \
+  if (std::error_code ASSERT_NO_ERROR_ec = x) {                                \
+    errs() << #x ": did not return errc::success.\n"                           \
+           << "error number: " << ASSERT_NO_ERROR_ec.value() << "\n"           \
+           << "error message: " << ASSERT_NO_ERROR_ec.message() << "\n";       \
+  } else {                                                                     \
+  }
+
+namespace {
+TEST(FileOutputBuffer, Test) {
+  // Create unique temporary directory for these tests
+  SmallString<128> TestDirectory;
+  {
+    ASSERT_NO_ERROR(
+        fs::createUniqueDirectory("FileOutputBuffer-test", TestDirectory));
+  }
+
+  // TEST 1: Verify commit case.
+  SmallString<128> File1(TestDirectory);
+	File1.append("/file1");
+  {
+    ErrorOr<std::unique_ptr<FileOutputBuffer>> BufferOrErr =
+        FileOutputBuffer::create(File1, 8192);
+    ASSERT_NO_ERROR(BufferOrErr.getError());
+    std::unique_ptr<FileOutputBuffer> &Buffer = *BufferOrErr;
+    // Start buffer with special header.
+    memcpy(Buffer->getBufferStart(), "AABBCCDDEEFFGGHHIIJJ", 20);
+    // Write to end of buffer to verify it is writable.
+    memcpy(Buffer->getBufferEnd() - 20, "AABBCCDDEEFFGGHHIIJJ", 20);
+    // Commit buffer.
+    ASSERT_NO_ERROR(Buffer->commit());
+  }
+
+  // Verify file is correct size.
+  uint64_t File1Size;
+  ASSERT_NO_ERROR(fs::file_size(Twine(File1), File1Size));
+  ASSERT_EQ(File1Size, 8192ULL);
+  ASSERT_NO_ERROR(fs::remove(File1.str()));
+
+ 	// TEST 2: Verify abort case.
+  SmallString<128> File2(TestDirectory);
+	File2.append("/file2");
+  {
+    ErrorOr<std::unique_ptr<FileOutputBuffer>> Buffer2OrErr =
+        FileOutputBuffer::create(File2, 8192);
+    ASSERT_NO_ERROR(Buffer2OrErr.getError());
+    std::unique_ptr<FileOutputBuffer> &Buffer2 = *Buffer2OrErr;
+    // Fill buffer with special header.
+    memcpy(Buffer2->getBufferStart(), "AABBCCDDEEFFGGHHIIJJ", 20);
+    // Do *not* commit buffer.
+  }
+  // Verify file does not exist (because buffer not committed).
+  ASSERT_EQ(fs::access(Twine(File2), fs::AccessMode::Exist),
+            errc::no_such_file_or_directory);
+  ASSERT_NO_ERROR(fs::remove(File2.str()));
+
+  // TEST 3: Verify sizing down case.
+  SmallString<128> File3(TestDirectory);
+	File3.append("/file3");
+  {
+    ErrorOr<std::unique_ptr<FileOutputBuffer>> BufferOrErr =
+        FileOutputBuffer::create(File3, 8192000);
+    ASSERT_NO_ERROR(BufferOrErr.getError());
+    std::unique_ptr<FileOutputBuffer> &Buffer = *BufferOrErr;
+    // Start buffer with special header.
+    memcpy(Buffer->getBufferStart(), "AABBCCDDEEFFGGHHIIJJ", 20);
+    // Write to end of buffer to verify it is writable.
+    memcpy(Buffer->getBufferEnd() - 20, "AABBCCDDEEFFGGHHIIJJ", 20);
+    ASSERT_NO_ERROR(Buffer->commit());
+  }
+
+  // Verify file is correct size.
+  uint64_t File3Size;
+  ASSERT_NO_ERROR(fs::file_size(Twine(File3), File3Size));
+  ASSERT_EQ(File3Size, 8192000ULL);
+  ASSERT_NO_ERROR(fs::remove(File3.str()));
+
+  // TEST 4: Verify file can be made executable.
+  SmallString<128> File4(TestDirectory);
+	File4.append("/file4");
+  {
+    ErrorOr<std::unique_ptr<FileOutputBuffer>> BufferOrErr =
+        FileOutputBuffer::create(File4, 8192, FileOutputBuffer::F_executable);
+    ASSERT_NO_ERROR(BufferOrErr.getError());
+    std::unique_ptr<FileOutputBuffer> &Buffer = *BufferOrErr;
+    // Start buffer with special header.
+    memcpy(Buffer->getBufferStart(), "AABBCCDDEEFFGGHHIIJJ", 20);
+    // Commit buffer.
+    ASSERT_NO_ERROR(Buffer->commit());
+  }
+  // Verify file exists and is executable.
+  fs::file_status Status;
+  ASSERT_NO_ERROR(fs::status(Twine(File4), Status));
+  bool IsExecutable = (Status.permissions() & fs::owner_exe);
+  EXPECT_TRUE(IsExecutable);
+  ASSERT_NO_ERROR(fs::remove(File4.str()));
+
+  // Clean up.
+  ASSERT_NO_ERROR(fs::remove(TestDirectory.str()));
+}
+} // anonymous namespace