Revision: 13421
Author: [email protected]
Date: Fri Jan 18 01:19:11 2013
Log: Don't insert HDummyUses for control instructions
Review URL: https://codereview.chromium.org/11941013
http://code.google.com/p/v8/source/detail?r=13421
Modified:
/branches/bleeding_edge/src/hydrogen.cc
=======================================
--- /branches/bleeding_edge/src/hydrogen.cc Thu Jan 17 08:09:08 2013
+++ /branches/bleeding_edge/src/hydrogen.cc Fri Jan 18 01:19:11 2013
@@ -1303,6 +1303,12 @@
}
continue;
}
+ if (operand->IsControlInstruction()) {
+ // Inserting a dummy use for a value that's not defined
anywhere
+ // will fail. Some instructions define fake inputs on such
+ // values as control flow dependencies.
+ continue;
+ }
HDummyUse* dummy = new(zone()) HDummyUse(operand);
dummy->InsertBefore(instr);
last_dummy = dummy;
--
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