Initial commit.

examples/simple/simple.cpp

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+/*
+  Copyright (c) 2010-2011, Intel Corporation
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are
+  met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+
+    * Neither the name of Intel Corporation nor the names of its
+      contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
+*/
+
+#include <stdio.h>
+
+// Include the header file that the ispc compiler generates
+#include "simple_ispc.h"
+using namespace ispc;
+
+int main() {
+    // Pointers passed to ispc-compiled code are currently required to have
+    // alignment equal to the target's native vector size.  Here we align
+    // to 32 bytes to be safe for both SSE and AVX targets.
+#ifdef _MSC_VER
+    __declspec(align(32)) float vin[16], vout[16];
+#else
+    float vin[16] __attribute__((aligned(32)));
+    float vout[16] __attribute__((aligned(32)));
+#endif
+
+    // Initialize input buffer
+    for (int i = 0; i < 16; ++i)
+        vin[i] = (float)i;
+
+    // Call simple() function from simple.ispc file
+    simple(vin, vout, 16);
+
+    // Print results
+    for (int i = 0; i < 16; ++i)
+        printf("%d: simple(%f) = %f\n", i, vin[i], vout[i]);
+
+    return 0;
+}