JDK-6667612 : Escape Analysis: disable loop clonning if it has a scalar replaceable allocation
Type:Enhancement
Component:hotspot
Sub-Component:compiler
Affected Version:hs12
Priority:P4
Status:Closed
Resolution:Fixed
OS:solaris_10
CPU:sparc
Submitted:2008-02-26
Updated:2011-04-20
Resolved:2011-04-20
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Clonning an allocation will not allow scalar replace it since memory operations
could not be associated with one allocation, unique type data graph is invalide
after such clonning.
Comments
EVALUATION
See Description.
07-03-2008
SUGGESTED FIX
Do not clone a loop with a scalar replaceable allocation
Also use 1 instead of 'true' for integer bitfields assignment.