add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.

This metadata can be attached to any instruction returning a pointer


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158660 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/VMCore/LLVMContext.cpp b/lib/VMCore/LLVMContext.cpp
index f07f0b3939..a140543a51 100644
--- a/lib/VMCore/LLVMContext.cpp
+++ b/lib/VMCore/LLVMContext.cpp
@@ -53,6 +53,11 @@ LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) {
   unsigned RangeID = getMDKindID("range");
   assert(RangeID == MD_range && "range kind id drifted");
   (void)RangeID;
+
+  // Create the 'alloc' metadata kind.
+  unsigned AllocID = getMDKindID("alloc");
+  assert(AllocID == MD_alloc && "alloc kind id drifted");
+  (void)AllocID;
 }
 LLVMContext::~LLVMContext() { delete pImpl; }