// Const stuff is obviously not modifiable.
if (CT.isConstQualified())
return Cl::CM_ConstQualified;
+ if (CT.getQualifiers().getAddressSpace() == LangAS::opencl_constant)
+ return Cl::CM_ConstQualified;
// Arrays are not modifiable, only their elements are.
if (CT->isArrayType())
llvm::Constant *C =
llvm::ConstantDataArray::getString(CGM.getLLVMContext(), str, false);
+ // OpenCL v1.1 s6.5.3: a string literal is in the constant address space.
+ unsigned AddrSpace = 0;
+ if (CGM.getLangOpts().OpenCL)
+ AddrSpace = CGM.getContext().getTargetAddressSpace(LangAS::opencl_constant);
+
// Create a global variable for this string
- llvm::GlobalVariable *GV =
- new llvm::GlobalVariable(CGM.getModule(), C->getType(), constant,
- llvm::GlobalValue::PrivateLinkage,
- C, GlobalName);
+ llvm::GlobalVariable *GV = new llvm::GlobalVariable(
+ CGM.getModule(), C->getType(), constant,
+ llvm::GlobalValue::PrivateLinkage, C, GlobalName, 0,
+ llvm::GlobalVariable::NotThreadLocal, AddrSpace);
GV->setAlignment(Alignment);
GV->setUnnamedAddr(true);
return GV;
llvm::APInt(32, Literal.GetNumStringChars()+1),
ArrayType::Normal, 0);
+ // OpenCL v1.1 s6.5.3: a string literal is in the constant address space.
+ if (getLangOpts().OpenCL) {
+ StrTy = Context.getAddrSpaceQualType(StrTy, LangAS::opencl_constant);
+ }
+
// Pass &StringTokLocs[0], StringTokLocs.size() to factory!
StringLiteral *Lit = StringLiteral::Create(Context, Literal.GetString(),
Kind, Literal.Pascal, StrTy,
--- /dev/null
+// RUN: %clang_cc1 %s -emit-llvm -o - -ffake-address-space-map | FileCheck %s
+
+__constant char * __constant x = "hello world";
+__constant char * __constant y = "hello world";
+
+// CHECK: addrspace(3) unnamed_addr constant
+// CHECK-NOT: addrspace(3) unnamed_addr constant
+// CHECK: @x = addrspace(3) global i8 addrspace(3)*
+// CHECK: @y = addrspace(3) global i8 addrspace(3)*
--- /dev/null
+// RUN: %clang_cc1 %s -verify
+// expected-no-diagnostics
+
+constant char * __constant x = "hello world";
+
+void foo(__constant char * a) {
+
+}
+
+void bar() {
+ foo("hello world");
+ foo(x);
+}