3 files changed, 45 insertions, 0 deletions
diff --git a/Tests/ISPC/Defines/CMakeLists.txt b/Tests/ISPC/Defines/CMakeLists.txt
new file mode 100644
index 0000000..5155106
--- /dev/null
+++ b/Tests/ISPC/Defines/CMakeLists.txt
@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.18)
+project(ISPCDefines CXX ISPC)
+
+set(CMAKE_ISPC_FLAGS -DM_PI=3.1415926535f)
+add_compile_definitions([==[STRUCT_DEFINE=struct{uniform int a]==])
+
+add_executable(ISPCDefines
+  main.cxx
+  simple.ispc
+  )
+
+set_target_properties(ISPCDefines PROPERTIES POSITION_INDEPENDENT_CODE ON)
+if(CMAKE_SIZEOF_VOID_P EQUAL 4)
+  set_source_files_properties(simple.ispc PROPERTIES COMPILE_OPTIONS "--arch=x86")
+endif()
diff --git a/Tests/ISPC/Defines/main.cxx b/Tests/ISPC/Defines/main.cxx
new file mode 100644
index 0000000..4f1c9be
--- /dev/null
+++ b/Tests/ISPC/Defines/main.cxx
@@ -0,0 +1,15 @@
+#include <stdio.h>
+
+#include "simple.ispc.h"
+
+int main()
+{
+  float vin[16], vout[16];
+  for (int i = 0; i < 16; ++i)
+    vin[i] = i;
+
+  ispc::simple(vin, vout, 16);
+
+  for (int i = 0; i < 16; ++i)
+    printf("%d: simple(%f) = %f\n", i, vin[i], vout[i]);
+}
diff --git a/Tests/ISPC/Defines/simple.ispc b/Tests/ISPC/Defines/simple.ispc
new file mode 100644
index 0000000..d8d6465
--- /dev/null
+++ b/Tests/ISPC/Defines/simple.ispc
@@ -0,0 +1,15 @@
+
+//textual error if STRUCT_DEFINE not set
+STRUCT_DEFINE;};
+
+export void simple(uniform float vin[], uniform float vout[],
+                   uniform int count) {
+    foreach (index = 0 ... count) {
+        float v = vin[index];
+        if (v < M_PI)
+            v = v * v;
+        else
+            v = sqrt(v);
+        vout[index] = v;
+    }
+}