GBE: support getelementptr with ConstantExpr operand

Add support during LLVM IR -> Gen IR period when the
first operand of getelementptr is ConstantExpr.

utest is also added.

Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/kernels/compiler_getelementptr_bitcast.cl b/kernels/compiler_getelementptr_bitcast.cl
new file mode 100644
index 00000000..0320abf4
--- /dev/null
+++ b/kernels/compiler_getelementptr_bitcast.cl
@@ -0,0 +1,18 @@
+__kernel void compiler_getelementptr_bitcast(global float *src, global float *dst)
+{
+  int i = get_global_id(0);
+
+  __local  float ldata[256];
+  ldata[get_local_id(0)] = src[i];
+
+  //if use get_local_id(0) to index ldata, the issue is not reproduced
+  //so, just set the work group as 1 in the application
+  __local uchar *  pldata = (__local uchar *)&ldata[0];
+  uchar data;
+  for(int k = 0; k < 3; k++){
+    data = *pldata;
+    pldata++;
+  }
+
+  dst[i] = data;
+}