Use move semantics if possible to construct ConstantRanges.

[oota-llvm.git] / lib / ExecutionEngine / JIT / JITMemoryManager.cpp

diff --git a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
index 6a1db16a6a189f4d70beb81b36a60cd13714ae8c..94db2459877b3cea76963f8ed16dcafcd36236c1 100644 (file)
--- a/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
+++ b/lib/ExecutionEngine/JIT/JITMemoryManager.cpp
@@ -468,7 +468,11 @@ namespace {
       // Grow the required block size to account for the block header
       Size += sizeof(*CurBlock);
 
-      // FIXME: Alignement handling.
+      // Alignment handling.
+      if (!Alignment)
+        Alignment = 16;
+      Size += Alignment - 1;
+
       FreeRangeHeader* candidateBlock = FreeMemoryList;
       FreeRangeHeader* head = FreeMemoryList;
       FreeRangeHeader* iter = head->Next;
@@ -500,7 +504,8 @@ namespace {
       FreeMemoryList = candidateBlock->AllocateBlock();
       // Release the memory at the end of this block that isn't needed.
       FreeMemoryList = CurBlock->TrimAllocationToSize(FreeMemoryList, Size);
-      return (uint8_t *)(CurBlock + 1);
+      uintptr_t unalignedAddr = (uintptr_t)CurBlock + sizeof(*CurBlock);
+      return (uint8_t*)RoundUpToAlignment((uint64_t)unalignedAddr, Alignment);
     }
 
     /// allocateDataSection - Allocate memory for a data section.