# HG changeset patch
# User goetz
# Date 1447934013 -3600
# Node ID 23cf0ffd154e4c97d56744861867bde2899cc5bf
# Parent  6100ab176973758e7a19cab7feb9319d67f0650a
8143307: Crash in C2 local code motion

diff --git a/src/share/vm/opto/lcm.cpp b/src/share/vm/opto/lcm.cpp
--- a/src/share/vm/opto/lcm.cpp
+++ b/src/share/vm/opto/lcm.cpp
@@ -499,8 +499,10 @@
 
     // Schedule IV increment last.
     if (e->is_Mach() && e->as_Mach()->ideal_Opcode() == Op_CountedLoopEnd &&
-        e->in(1)->in(1) == n && n->is_iteratively_computed())
+        e->in(1)->req() > 1 && e->in(1)->in(1) == n &&
+        n->is_iteratively_computed()) {
       continue;
+    }
 
     uint n_choice  = 2;