Author: ycwu
Date: 2011-07-03 23:02:06 -0400 (Sun, 03 Jul 2011)
New Revision: 3678
Modified:
trunk/osprey/be/cg/cg.cxx
Log:
fixed bug #823
The problem is that we were calling:
GRA_LIVE_Recalc_Liveness(region ? REGION_get_rid( rwn) : NULL);
GRA_LIVE_Rename_TNs();
at +O1, when we should not. As a result, LRA encountered an
unexpected GTN and asserted.
The fix is to guard this code with:
if (!CG_localize_tns) {
CG_localize_tns is set when the optimization level is <= 1.
code review by Lai Jian-Xin
Modified: trunk/osprey/be/cg/cg.cxx
===================================================================
--- trunk/osprey/be/cg/cg.cxx 2011-07-02 19:42:26 UTC (rev 3677)
+++ trunk/osprey/be/cg/cg.cxx 2011-07-04 03:02:06 UTC (rev 3678)
@@ -1487,8 +1487,10 @@
Check_for_Dump_ALL ( TP_CGEXP, NULL, "Pre LIS" );
#else
- GRA_LIVE_Recalc_Liveness(region ? REGION_get_rid( rwn) : NULL);
- GRA_LIVE_Rename_TNs();
+ if (!CG_localize_tns) {
+ GRA_LIVE_Recalc_Liveness(region ? REGION_get_rid( rwn) : NULL);
+ GRA_LIVE_Rename_TNs();
+ }
#if !defined(TARG_PPC32) // PPC IGLS_Schedule_Region bugs
IGLS_Schedule_Region (TRUE /* before register allocation */);
#ifdef TARG_X8664
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