From ff381bf8b4c58dc2ec2ffc1044f6d23070eeda7f Mon Sep 17 00:00:00 2001
From: Robert Maynard <robert.maynard@kitware.com>
Date: Thu, 22 Oct 2020 16:48:30 +0000
Subject: [PATCH] vtkm/Swap works with hip

---
 vtkm/Swap.h | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/vtkm/Swap.h b/vtkm/Swap.h
index 3f4b1ddc0..f833a495c 100644
--- a/vtkm/Swap.h
+++ b/vtkm/Swap.h
@@ -13,7 +13,7 @@
 
 #include <vtkm/internal/ExportMacros.h>
 
-#ifdef __CUDACC__
+#ifdef VTKM_CUDA
 #include <thrust/swap.h>
 #else
 #include <algorithm>
@@ -23,13 +23,27 @@ namespace vtkm
 {
 
 /// Performs a swap operation. Safe to call from cuda code.
-#ifdef __CUDACC__
+#if defined(VTKM_CUDA)
 template <typename T>
 VTKM_EXEC_CONT void Swap(T& a, T& b)
 {
   using namespace thrust;
   swap(a, b);
 }
+#elif defined(VTKM_HIP)
+template <typename T>
+__host__ void Swap(T& a, T& b)
+{
+  using namespace std;
+  swap(a, b);
+}
+template <typename T>
+__device__ void Swap(T& a, T& b)
+{
+  T temp = a;
+  a = b;
+  b = temp;
+}
 #else
 template <typename T>
 VTKM_EXEC_CONT void Swap(T& a, T& b)