[Beignet] [PATCH] GBE: fix empty block disassemble bug.

[Yongjia Zhang]

If a block is empty, there will be more than one label pointing the
same instruction we need to step over all those labels.

Signed-off-by: Zhigang Gong <zhigang.gong at intel.com>
---
 backend/src/backend/gen_context.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/backend/src/backend/gen_context.cpp b/backend/src/backend/gen_context.cpp
index 2a4047a..f9ffc6e 100644
--- a/backend/src/backend/gen_context.cpp
+++ b/backend/src/backend/gen_context.cpp
@@ -1897,6 +1897,10 @@ namespace gbe
             curLabel < this->getFunction().labelNum()) {
           std::cout << "  L" << curLabel + 1 << ":" << std::endl;
           curLabel = (ir::LabelIndex)(curLabel + 1);
+          while(labelPos.find((ir::LabelIndex)(curLabel + 1))->second == insnID) {
+            std::cout << "  L" << curLabel + 1 << ":" << std::endl;
+            curLabel = (ir::LabelIndex)(curLabel + 1);
+          }
         }
         std::cout << "    (" << std::setw(8) << insnID << ")  ";
         pCom = (GenCompactInstruction*)&p->store[insnID];
-- 
1.8.3.2