Implement OpenCL event_t as Clang builtin type, including event_t related OpenCL restrictions (OpenCL 1.2 spec 6.9)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172973 91177308-0d34-0410-b5e6-96231b3b80d8

10 files changed, 19 insertions, 0 deletions

diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 37df4b33ce..264d075e5c 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -426,6 +426,9 @@ llvm::DIType CGDebugInfo::CreateType(const BuiltinType *BT) {
   case BuiltinType::OCLImage3d:
     return getOrCreateStructPtrType("opencl_image3d_t",
                                     OCLImage3dDITy);
+  case BuiltinType::OCLEvent:
+    return getOrCreateStructPtrType("opencl_event_t",
+                                    OCLEventDITy);
 
   case BuiltinType::UChar:
   case BuiltinType::Char_U: Encoding = llvm::dwarf::DW_ATE_unsigned_char; break;
diff --git a/lib/CodeGen/CGDebugInfo.h b/lib/CodeGen/CGDebugInfo.h
index 3ecf2edfb0..fbbee0b3d2 100644
--- a/lib/CodeGen/CGDebugInfo.h
+++ b/lib/CodeGen/CGDebugInfo.h
@@ -55,6 +55,7 @@ class CGDebugInfo {
   llvm::DIType OCLImage1dDITy, OCLImage1dArrayDITy, OCLImage1dBufferDITy;
   llvm::DIType OCLImage2dDITy, OCLImage2dArrayDITy;
   llvm::DIType OCLImage3dDITy;
+  llvm::DIType OCLEventDITy;
   
   /// TypeCache - Cache of previously constructed Types.
   llvm::DenseMap<void *, llvm::WeakVH> TypeCache;
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index cdbd6e7bb7..9bef08b4a5 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -2639,6 +2639,8 @@ LValue CodeGenFunction::EmitCastLValue(const CastExpr *E) {
                                            ConvertType(ToType));
     return MakeAddrLValue(V, E->getType());
   }
+  case CK_ZeroToOCLEvent:
+    llvm_unreachable("NULL to OpenCL event lvalue cast is not valid");
   }
   
   llvm_unreachable("Unhandled lvalue cast kind?");
diff --git a/lib/CodeGen/CGExprAgg.cpp b/lib/CodeGen/CGExprAgg.cpp
index b037113945..a35ef0c931 100644
--- a/lib/CodeGen/CGExprAgg.cpp
+++ b/lib/CodeGen/CGExprAgg.cpp
@@ -648,6 +648,7 @@ void AggExprEmitter::VisitCastExpr(CastExpr *E) {
   case CK_ARCExtendBlockObject:
   case CK_CopyAndAutoreleaseBlockObject:
   case CK_BuiltinFnToFnPtr:
+  case CK_ZeroToOCLEvent:
     llvm_unreachable("cast kind invalid for aggregate types");
   }
 }
diff --git a/lib/CodeGen/CGExprComplex.cpp b/lib/CodeGen/CGExprComplex.cpp
index 127029795c..0a53d4f127 100644
--- a/lib/CodeGen/CGExprComplex.cpp
+++ b/lib/CodeGen/CGExprComplex.cpp
@@ -428,6 +428,7 @@ ComplexPairTy ComplexExprEmitter::EmitCast(CastExpr::CastKind CK, Expr *Op,
   case CK_ARCExtendBlockObject:
   case CK_CopyAndAutoreleaseBlockObject:
   case CK_BuiltinFnToFnPtr:
+  case CK_ZeroToOCLEvent:
     llvm_unreachable("invalid cast kind for complex value");
 
   case CK_FloatingRealToComplex:
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 2c107cb716..80ab2ed28c 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -747,6 +747,7 @@ public:
     case CK_FloatingToIntegral:
     case CK_FloatingToBoolean:
     case CK_FloatingCast:
+    case CK_ZeroToOCLEvent:
       return 0;
     }
     llvm_unreachable("Invalid CastKind");
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index 5715913b6a..ed927e2fb4 100644
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -1383,6 +1383,11 @@ Value *ScalarExprEmitter::VisitCastExpr(CastExpr *CE) {
     return EmitComplexToScalarConversion(V, E->getType(), DestTy);
   }
 
+  case CK_ZeroToOCLEvent: {
+    assert(DestTy->isEventT() && "CK_ZeroToOCLEvent cast on non event type");
+    return llvm::Constant::getNullValue(ConvertType(DestTy));
+  }
+
   }
 
   llvm_unreachable("unknown scalar cast");
diff --git a/lib/CodeGen/CGOpenCLRuntime.cpp b/lib/CodeGen/CGOpenCLRuntime.cpp
index bb239c6c3d..215d09640a 100644
--- a/lib/CodeGen/CGOpenCLRuntime.cpp
+++ b/lib/CodeGen/CGOpenCLRuntime.cpp
@@ -55,5 +55,8 @@ llvm::Type *CGOpenCLRuntime::convertOpenCLSpecificType(const Type *T) {
   case BuiltinType::OCLImage3d:
     return llvm::PointerType::get(llvm::StructType::create(
                            CGM.getLLVMContext(), "opencl.image3d_t"), 0);
+  case BuiltinType::OCLEvent:
+    return llvm::PointerType::get(llvm::StructType::create(
+                           CGM.getLLVMContext(), "opencl.event_t"), 0);
   }
 }
diff --git a/lib/CodeGen/CGRTTI.cpp b/lib/CodeGen/CGRTTI.cpp
index 41b73e23cd..3d65892b2e 100644
--- a/lib/CodeGen/CGRTTI.cpp
+++ b/lib/CodeGen/CGRTTI.cpp
@@ -197,6 +197,7 @@ static bool TypeInfoIsInStandardLibrary(const BuiltinType *Ty) {
     case BuiltinType::OCLImage2d:
     case BuiltinType::OCLImage2dArray:
     case BuiltinType::OCLImage3d:
+    case BuiltinType::OCLEvent:
       return true;
       
     case BuiltinType::Dependent:
diff --git a/lib/CodeGen/CodeGenTypes.cpp b/lib/CodeGen/CodeGenTypes.cpp
index 2c5f2d80cf..c186ebff29 100644
--- a/lib/CodeGen/CodeGenTypes.cpp
+++ b/lib/CodeGen/CodeGenTypes.cpp
@@ -374,6 +374,7 @@ llvm::Type *CodeGenTypes::ConvertType(QualType T) {
     case BuiltinType::OCLImage2d:
     case BuiltinType::OCLImage2dArray:
     case BuiltinType::OCLImage3d:
+    case BuiltinType::OCLEvent:
       ResultType = CGM.getOpenCLRuntime().convertOpenCLSpecificType(Ty);
       break;