[Beignet] [Patch V2 2/2] GBE: fix a mix analyze bug.

[Yang Rong]

When update pointerOrigMap, only non-select and non-phi insn need
update second[0], if update select or phi's second[0], will over
write the info.

Signed-off-by: Yang Rong <rong.r.yang at intel.com>
---
 backend/src/llvm/llvm_gen_backend.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/backend/src/llvm/llvm_gen_backend.cpp b/backend/src/llvm/llvm_gen_backend.cpp
index 467b1de..1e7b140 100644
--- a/backend/src/llvm/llvm_gen_backend.cpp
+++ b/backend/src/llvm/llvm_gen_backend.cpp
@@ -929,7 +929,8 @@ namespace gbe
               pointerOrigMap.insert(std::make_pair(work, pointers));
             } else {
               // update the pointer source here,
-              (*ptrIter).second[0] = ptr;
+              if ((!isa<SelectInst>(work) && !isa<PHINode>(work)))
+                (*ptrIter).second[0] = ptr;
             }
 
             continue;
@@ -975,7 +976,8 @@ namespace gbe
             pointerOrigMap.insert(std::make_pair(pointer, pointers));
           } else {
             // update the pointer source here,
-            (*ptrIter).second[0] = ptr;
+            if ((!isa<SelectInst>(pointer) && !isa<PHINode>(pointer)))
+              (*ptrIter).second[0] = ptr;
           }
         } else {
           workList.push_back(theUser);
-- 
2.1.4