[llvm] r228648 - IR: Add accessors to MDExpression

[Duncan P. N. Exon Smith]

Author: dexonsmith
Date: Mon Feb  9 19:36:46 2015
New Revision: 228648

URL: http://llvm.org/viewvc/llvm-project?rev=228648&view=rev
Log:
IR: Add accessors to MDExpression

Add some accessors to `MDExpression`.

Modified:
    llvm/trunk/include/llvm/IR/DebugInfoMetadata.h
    llvm/trunk/unittests/IR/MetadataTest.cpp

Modified: llvm/trunk/include/llvm/IR/DebugInfoMetadata.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/DebugInfoMetadata.h?rev=228648&r1=228647&r2=228648&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/DebugInfoMetadata.h (original)
+++ llvm/trunk/include/llvm/IR/DebugInfoMetadata.h Mon Feb  9 19:36:46 2015
@@ -1410,6 +1410,12 @@ public:
 
   ArrayRef<uint64_t> getElements() const { return Elements; }
 
+  unsigned getNumElements() const { return Elements.size(); }
+  uint64_t getElement(unsigned I) const {
+    assert(I < Elements.size() && "Index out of range");
+    return Elements[I];
+  }
+
   typedef ArrayRef<uint64_t>::iterator element_iterator;
   element_iterator elements_begin() const { return getElements().begin(); }
   element_iterator elements_end() const { return getElements().end(); }

Modified: llvm/trunk/unittests/IR/MetadataTest.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/IR/MetadataTest.cpp?rev=228648&r1=228647&r2=228648&view=diff
==============================================================================
--- llvm/trunk/unittests/IR/MetadataTest.cpp (original)
+++ llvm/trunk/unittests/IR/MetadataTest.cpp Mon Feb  9 19:36:46 2015
@@ -1389,6 +1389,13 @@ TEST_F(MDExpressionTest, get) {
   auto *N = MDExpression::get(Context, Elements);
   EXPECT_EQ(makeArrayRef(Elements), N->getElements());
   EXPECT_EQ(N, MDExpression::get(Context, Elements));
+
+  EXPECT_EQ(5u, N->getNumElements());
+  EXPECT_EQ(2u, N->getElement(0));
+  EXPECT_EQ(6u, N->getElement(1));
+  EXPECT_EQ(9u, N->getElement(2));
+  EXPECT_EQ(78u, N->getElement(3));
+  EXPECT_EQ(0u, N->getElement(4));
 }
 
 typedef MetadataTest MDObjCPropertyTest;