From: Hans-Peter Nilsson <hp@axis.com>
Date: Thu, 9 Jun 2011 23:38:35 +0000 (+0000)
Subject: re PR rtl-optimization/49154 (build fails on cris-elf in libgcc: ICE in setup_pressur... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c577822ec18dbe068fe0a3d974e64a5afc52f00d;p=gcc.git

re PR rtl-optimization/49154 (build fails on cris-elf in libgcc: ICE in setup_pressure_classes, at ira.c:902)

	PR rtl-optimization/49154
	* ira-costs.c (setup_regno_cost_classes_by_mode): If there
	already is a matching slot in the hashtable, assign it to
	classes_ptr.

From-SVN: r174868
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f05ecfd73e8..cd42b1afa33 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2011-06-10  Hans-Peter Nilsson  <hp@axis.com>
 
+	PR rtl-optimization/49154
+	* ira-costs.c (setup_regno_cost_classes_by_mode): If there
+	already is a matching slot in the hashtable, assign it to
+	classes_ptr.
+
 	PR rtl-optimization/49154
 	* doc/tm.texi.in (Register Classes): Document rule for the narrowest
 	register classes.
diff --git a/gcc/ira-costs.c b/gcc/ira-costs.c
index f517386ceef..a22bb1571cc 100644
--- a/gcc/ira-costs.c
+++ b/gcc/ira-costs.c
@@ -299,6 +299,8 @@ setup_regno_cost_classes_by_mode (int regno, enum machine_mode mode)
 	  classes_ptr = setup_cost_classes (&classes);
 	  *slot = classes_ptr;
 	}
+      else
+	classes_ptr = *slot;
       cost_classes_mode_cache[mode] = (cost_classes_t) *slot;
     }
   regno_cost_classes[regno] = classes_ptr;