summaryrefslogtreecommitdiff
path: root/gcc/testsuite/g++.dg/other/i386-4.C
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/testsuite/g++.dg/other/i386-4.C')
-rw-r--r--gcc/testsuite/g++.dg/other/i386-4.C30
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/other/i386-4.C b/gcc/testsuite/g++.dg/other/i386-4.C
new file mode 100644
index 000000000..858a3a74e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/other/i386-4.C
@@ -0,0 +1,30 @@
+/* { dg-do compile { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-O1 -msse2" } */
+/* { dg-require-effective-target sse2 } */
+
+#include <xmmintrin.h>
+
+void ConvertFloatSSE (void *inBuff, void *outBuff, int len)
+{
+ unsigned char *inByteBuffer = reinterpret_cast < unsigned char *>(inBuff);
+ float *outFloatBuffer = reinterpret_cast < float *>(outBuff);
+
+ for (int i = 0; i < len / 4; i++)
+ {
+ __m128i register1 =
+ _mm_set_epi8 (*inByteBuffer, *(inByteBuffer + 1),
+ *(inByteBuffer + 2), 0,
+ *(inByteBuffer + 3), *(inByteBuffer + 4),
+ *(inByteBuffer + 5), 0,
+ *(inByteBuffer + 6), *(inByteBuffer + 7),
+ *(inByteBuffer + 8), 0,
+ *(inByteBuffer + 9), *(inByteBuffer + 10),
+ *(inByteBuffer + 11), 0);
+ __m128i register2 = _mm_srai_epi32 (register1, 8);
+ __m128 register3 = _mm_cvtepi32_ps (register2);
+
+ _mm_store_ps (outFloatBuffer, register3);
+ outFloatBuffer += 4;
+ inByteBuffer += 12;
+ }
+}