JDK-6750588 : assert(lrg._area >= 0,"negative spill area") running NSK stmp0101 test
  • Type: Bug
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: hs14
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2008-09-19
  • Updated: 2011-03-08
  • Resolved: 2011-03-08
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JDK 6 JDK 7 Other
6u14Fixed 7Fixed hs14Fixed
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Description
NSK test fails with assert on all platforms running -Xcomp.

Comments
EVALUATION http://hg.openjdk.java.net/jdk7/hotspot-comp/hotspot/rev/5f85534046c2
2008-09-25

EVALUATION Test case has loop nest 128 levels deep. With new RPO parsing, the internal representation accurately represents the loop nest. Block frequency calculations go to infinity for some of the inner loops because of the limitations of the float representation. Calculations in ifg_physical go to NaN and INF because of the high frequencies, which aren't accounted for in the asserts.
2008-09-22