Add ISPC compiler support to CMake

3 files changed, 39 insertions, 0 deletions

diff --git a/Tests/ISPC/StaticLibrary/CMakeLists.txt b/Tests/ISPC/StaticLibrary/CMakeLists.txt
new file mode 100644
index 0000000..b057544
--- /dev/null
+++ b/Tests/ISPC/StaticLibrary/CMakeLists.txt
@@ -0,0 +1,12 @@
+
+cmake_minimum_required(VERSION 3.18)
+project(ISPCStaticLibrary CXX ISPC)
+
+add_library(ispc_objects STATIC simple.ispc)
+
+target_compile_options(ispc_objects PRIVATE "$<$<COMPILE_LANGUAGE:ISPC>:--target=sse2-i32x4;--arch=x86-64>")
+target_include_directories(ispc_objects INTERFACE  "${CMAKE_CURRENT_BINARY_DIR}")
+set_target_properties(ispc_objects PROPERTIES POSITION_INDEPENDENT_CODE ON)
+
+add_executable(ISPCStaticLibrary main.cxx)
+target_link_libraries(ISPCStaticLibrary PRIVATE ispc_objects)
diff --git a/Tests/ISPC/StaticLibrary/main.cxx b/Tests/ISPC/StaticLibrary/main.cxx
new file mode 100644
index 0000000..a6b91a6
--- /dev/null
+++ b/Tests/ISPC/StaticLibrary/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/StaticLibrary/simple.ispc b/Tests/ISPC/StaticLibrary/simple.ispc
new file mode 100644
index 0000000..70cb588
--- /dev/null
+++ b/Tests/ISPC/StaticLibrary/simple.ispc
@@ -0,0 +1,12 @@
+
+export void simple(uniform float vin[], uniform float vout[],
+                   uniform int count) {
+    foreach (index = 0 ... count) {
+        float v = vin[index];
+        if (v < 3.)
+            v = v * v;
+        else
+            v = sqrt(v);
+        vout[index] = v;
+    }
+}