Merging r197036:

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r197036 | david.tweed | 2013-12-11 08:39:46 -0500 (Wed, 11 Dec 2013) | 8 lines

Add front-end infrastructure now address space casts are in LLVM IR.

With the introduction of explicit address space casts into LLVM, there's
a need to provide a new cast kind the front-end can create for C/OpenCL/CUDA
and code to produce address space casts from those kinds when appropriate.

Patch by Michele Scandale!

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_34@209029 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 9055ddac35..6307f4c0db 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -1474,6 +1474,11 @@ void CastExpr::CheckCastConsistency() const {
     assert(getSubExpr()->getType()->isFunctionType());
     goto CheckNoBasePath;
 
+  case CK_AddressSpaceConversion:
+    assert(getType()->isPointerType());
+    assert(getSubExpr()->getType()->isPointerType());
+    assert(getType()->getPointeeType().getAddressSpace() !=
+           getSubExpr()->getType()->getPointeeType().getAddressSpace());
   // These should not have an inheritance path.
   case CK_Dynamic:
   case CK_ToUnion:
@@ -1636,6 +1641,8 @@ const char *CastExpr::getCastKindName() const {
     return "BuiltinFnToFnPtr";
   case CK_ZeroToOCLEvent:
     return "ZeroToOCLEvent";
+  case CK_AddressSpaceConversion:
+    return "AddressSpaceConversion";
   }
 
   llvm_unreachable("Unhandled cast kind!");