================
@@ -0,0 +1,19 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only \
+// RUN: -isystem %S/Inputs -verify %s
+// RUN: %clang_cc1 -triple nvptx64-nvidia-cuda -fsyntax-only \
+// RUN: -isystem %S/Inputs -fcuda-is-device -verify %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only \
+// RUN: -isystem %S/Inputs -verify=redecl -Woffload-incompatible-redeclare %s
+// RUN: %clang_cc1 -triple nvptx64-nvidia-cuda -fsyntax-only \
+// RUN: -isystem %S/Inputs -fcuda-is-device -Woffload-incompatible-redeclare
-verify=redecl %s
+
+// expected-no-diagnostics
+#include "cuda.h"
+
+__device__ void f(); // redecl-note {{previous declaration is here}}
+
+void f() {} // redecl-warning {{incompatible host/device attribute with
redeclaration: new declaration is __host__ function, old declaration is
__device__ function. It will cause warning with nvcc}}
----------------
yxsamliu wrote:
I checked with real HIP apps and the warnings will only show up for user's code
or header files. There are no warnings for host/device redeclarations in HIP or
clang headers since they are included as system headers.
https://github.com/llvm/llvm-project/pull/77359
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