From da6a16a990a007edb7a760a2eb5b9b48ccc06e4c Mon Sep 17 00:00:00 2001
From: Rodrigo Huerta <rodrigodenia@gmail.com>
Date: Fri, 25 Feb 2022 10:33:46 +0000
Subject: Fixed old bug that happens when there are different latencies to the
 same execution unit

---
 src/gpgpu-sim/shader.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc
index c6e7b8f..90bb900 100644
--- a/src/gpgpu-sim/shader.cc
+++ b/src/gpgpu-sim/shader.cc
@@ -2294,8 +2294,10 @@ void pipelined_simd_unit::cycle() {
     if (!m_dispatch_reg->dispatch_delay()) {
       int start_stage =
           m_dispatch_reg->latency - m_dispatch_reg->initiation_interval;
-      move_warp(m_pipeline_reg[start_stage], m_dispatch_reg);
-      active_insts_in_pipeline++;
+      if(m_pipeline_reg[start_stage]->empty()) {
+      	move_warp(m_pipeline_reg[start_stage], m_dispatch_reg);
+      	active_insts_in_pipeline++;
+      }
     }
   }
   occupied >>= 1;
-- 
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