Add OpenCL error that a kernel function must have void return type. Includes a test case.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173963 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index c94bf5f..24dffc0 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -6227,7 +6227,14 @@
Diag(D.getIdentifierLoc(), diag::err_static_kernel);
D.setInvalidType();
}
-
+
+ // OpenCL v1.2, s6.9 -- Kernels can only have return type void.
+ if (!NewFD->getResultType()->isVoidType()) {
+ Diag(D.getIdentifierLoc(),
+ diag::err_expected_kernel_void_return_type);
+ D.setInvalidType();
+ }
+
for (FunctionDecl::param_iterator PI = NewFD->param_begin(),
PE = NewFD->param_end(); PI != PE; ++PI) {
ParmVarDecl *Param = *PI;