JDK-6463375 : Fix the condition for a commutative operation's inputs swapping during final graph reshaping
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 7
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- OS: solaris_9
- CPU: sparc
- Submitted: 2006-08-24
- Updated: 2010-04-03
- Resolved: 2006-11-14
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| JDK 6 | JDK 7 | Other |
|---|---|---|
6u4Fixed  |
7Fixed |
hs10Fixed |
Description
The condition in final_graph_reshaping_impl() is incomplete. It misses the check for commutative nodes MaxI and MinI. And it allows to swap the input from a loop's Phi node to the second input of a commutative node. All this increse a register pressure during RA.
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