Author: minz
Date: 2011-04-07 13:28:58 -0400 (Thu, 07 Apr 2011)
New Revision: 3538
Modified:
trunk/osprey/be/opt/opt_ssa.cxx
Log:
Bug Fix: bug761
Fixing a problem in Resurrect_chi - it uses chi's result (du)
to set_opnd, which causes the non-zero version use before def
(assertion in verifying live range).
The fix is to use chi->Opnd()'s zero_version_cr to set_opnd.
Code Review: Sun Chan
Modified: trunk/osprey/be/opt/opt_ssa.cxx
===================================================================
--- trunk/osprey/be/opt/opt_ssa.cxx 2011-04-06 06:03:01 UTC (rev 3537)
+++ trunk/osprey/be/opt/opt_ssa.cxx 2011-04-07 17:28:58 UTC (rev 3538)
@@ -1,3 +1,6 @@
+/*
+ * Copyright (C) 2011, Hewlett-Packard Development Company, L.P. All Rights
Reserved.
+ */
//-*-c++-*-
/*
@@ -1612,7 +1615,7 @@
chi->Set_dse_dead(FALSE);
if (sr->Op() == OPC_OPT_CHI)
- chi->Set_OPND( Get_zero_version_CR(chi->Aux_id(), _opt_stab, du));
+ chi->Set_OPND( Get_zero_version_CR(chi->Aux_id(), _opt_stab, chi->Opnd()));
else {
chi->Set_OPND(Revive_phi_chi_opnd(chi->Opnd()));
chi->OPND()->Set_flag(CF_DONT_PROP);
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