From 36adf2da2f22978d0df787fd1f59929a7768a37c Mon Sep 17 00:00:00 2001
From: cristianrosa <cristianrosa@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Date: Mon, 10 May 2010 14:14:47 +0000
Subject: [PATCH 1/1] Improve the transition's dependence detection in MC

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@7730 48e7efb5-ca39-0410-a469-dd3cf9ba447f
---
 src/mc/mc_transition.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/src/mc/mc_transition.c b/src/mc/mc_transition.c
index 4e5c95d349..e397f35569 100644
--- a/src/mc/mc_transition.c
+++ b/src/mc/mc_transition.c
@@ -87,18 +87,24 @@ int MC_transition_depend(mc_transition_t t1, mc_transition_t t2)
   /* The semantics of SIMIX network operations implies that ONLY transitions 
      of the same type, in the same rendez-vous point, and from different processes
      are dependant, except wait transitions that are always independent */
-  if(   t1->type == mc_wait 
-     || t2->type == mc_wait
-     || t1->process == t2->process
-     || t1->type != t2->type
-     || t1->rdv != t2->rdv)
+  if(t1->process == t2->process) 
     return FALSE;
-  else
-    return TRUE;
-}
-
-
-
 
+  if(t1->type == mc_isend && t2->type == mc_isend && t1->rdv == t2->rdv)
+    return TRUE;
 
+  if(t1->type == mc_irecv && t2->type == mc_irecv && t1->rdv == t2->rdv)
+    return TRUE;
 
+  if(t1->type == mc_wait && t2->type == mc_wait 
+     && t1->comm->src_buff != NULL
+     && t1->comm->dst_buff != NULL
+     && t2->comm->src_buff != NULL
+     && t2->comm->dst_buff != NULL
+     && (   t1->comm->dst_buff == t2->comm->src_buff
+         || t1->comm->dst_buff == t2->comm->dst_buff
+         || t2->comm->dst_buff == t1->comm->src_buff))
+    return TRUE;
+  
+  return FALSE;
+}
\ No newline at end of file
-- 
2.20.1