Fixed alignment of code sections in the JIT mode. Added a test to the JITMemoryManager.

llvm-svn: 185421

1 files changed, 23 insertions, 0 deletions

diff --git a/llvm/unittests/ExecutionEngine/JIT/JITMemoryManagerTest.cpp b/llvm/unittests/ExecutionEngine/JIT/JITMemoryManagerTest.cpp
index 21ca0d448ce..c06b89cf43e 100644
--- a/llvm/unittests/ExecutionEngine/JIT/JITMemoryManagerTest.cpp
+++ b/llvm/unittests/ExecutionEngine/JIT/JITMemoryManagerTest.cpp
@@ -277,4 +277,27 @@ TEST(JITMemoryManagerTest, TestManyStubs) {
   EXPECT_EQ(3U, MemMgr->GetNumStubSlabs());
 }
 
+// Check section allocation and alignment
+TEST(JITMemoryManagerTest, AllocateSection) {
+  OwningPtr<JITMemoryManager> MemMgr(
+      JITMemoryManager::CreateDefaultMemManager());
+  uint8_t *code1 = MemMgr->allocateCodeSection(256, 0, 1);

+  uint8_t *data1 = MemMgr->allocateDataSection(256, 16, 2, true);

+  uint8_t *code2 = MemMgr->allocateCodeSection(257, 32, 3);

+  uint8_t *data2 = MemMgr->allocateDataSection(256, 64, 4, false);

+  uint8_t *code3 = MemMgr->allocateCodeSection(258, 64, 5);

+

+  EXPECT_NE((uint8_t*)0, code1);

+  EXPECT_NE((uint8_t*)0, code2);

+  EXPECT_NE((uint8_t*)0, data1);

+  EXPECT_NE((uint8_t*)0, data2);

+

+  // Check alignment

+  EXPECT_EQ((uint64_t)code1 & 0xf, 0);

+  EXPECT_EQ((uint64_t)code2 & 0x1f, 0);

+  EXPECT_EQ((uint64_t)code3 & 0x3f, 0);

+  EXPECT_EQ((uint64_t)data1 & 0xf, 0);

+  EXPECT_EQ((uint64_t)data2 & 0x3f, 0);

+}
+
 }