Mercurial > hg > graal-compiler
changeset 21380:af9d0db304e8
Do not weaken stamp of PhiNode in inferStamp
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Thu, 14 May 2015 16:05:02 -0700 |
parents | 0042b1960e71 |
children | d339bcb65015 |
files | graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/ValuePhiNode.java |
diffstat | 1 files changed, 5 insertions(+), 1 deletions(-) [+] |
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--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/ValuePhiNode.java Thu May 14 16:03:49 2015 -0700 +++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/ValuePhiNode.java Thu May 14 16:05:02 2015 -0700 @@ -59,6 +59,10 @@ @Override public boolean inferStamp() { - return updateStamp(StampTool.meet(values())); + Stamp valuesStamp = StampTool.meet(values()); + if (stamp.isCompatible(valuesStamp)) { + valuesStamp = stamp.join(valuesStamp); + } + return updateStamp(valuesStamp); } }