From ac097544d1203adc71cec625c4b1e5dca50f5115 Mon Sep 17 00:00:00 2001
From: "Andrew M. B. Boktor" <andrew.boktor@gmail.com>
Date: Sat, 17 Mar 2012 18:47:05 -0800
Subject: Fix for bug 142

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 11724]
---
 src/gpgpu-sim/shader.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc
index 82be8ed..7d4f7eb 100644
--- a/src/gpgpu-sim/shader.cc
+++ b/src/gpgpu-sim/shader.cc
@@ -722,7 +722,7 @@ void shader_core_ctx::warp_inst_complete(const warp_inst_t &inst)
 void shader_core_ctx::writeback()
 {
     warp_inst_t *&pipe_reg = m_pipeline_reg[EX_WB];
-    if( !pipe_reg->empty() ) {
+    if( !pipe_reg->empty() && m_operand_collector.writeback(*pipe_reg)) {
         unsigned warp_id = pipe_reg->warp_id();
         m_scoreboard->releaseRegisters( pipe_reg );
         m_warp[warp_id].dec_inst_in_pipeline();
-- 
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