Mercurial > hg > truffle
changeset 13654:32af063cc29c
Don't create null guards for values that are already known to be non-null.
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Thu, 16 Jan 2014 12:18:29 +0100 |
parents | 966f65db5115 |
children | fff17b5dff8a 03b42f0fb635 |
files | graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotLoweringProvider.java |
diffstat | 1 files changed, 3 insertions(+), 0 deletions(-) [+] |
line wrap: on
line diff
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotLoweringProvider.java Wed Jan 15 21:30:34 2014 +0100 +++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotLoweringProvider.java Thu Jan 16 12:18:29 2014 +0100 @@ -705,6 +705,9 @@ } private static GuardingNode createNullCheck(ValueNode object, FixedNode before, LoweringTool tool) { + if (ObjectStamp.isObjectNonNull(object)) { + return null; + } return tool.createGuard(before, before.graph().unique(new IsNullNode(object)), DeoptimizationReason.NullCheckException, DeoptimizationAction.InvalidateReprofile, true); }