[Bug 3122] New: [IcedTea8] Backport "8162384: Performance regression: bimorphic inlining may be bypassed by type speculation"

[bugzilla-daemon at icedtea.classpath.org]

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=3122

            Bug ID: 3122
           Summary: [IcedTea8] Backport "8162384: Performance regression:
                    bimorphic inlining may be bypassed by type
                    speculation"
           Product: IcedTea
           Version: 8-hg
          Hardware: all
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: IcedTea
          Assignee: gnu.andrew at redhat.com
          Reporter: gnu.andrew at redhat.com
                CC: unassigned at icedtea.classpath.org

Some cases would benefit more from bimorphic inlining than type speculation,
but the latter optimisation is taking precedence and causing performance
degradation:

http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-July/023872.html
https://bugzilla.redhat.com/show_bug.cgi?id=1358661

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