Erroneous execution results when C2 -Xcomp is used

Test execution results are erroneous when C2 with -Xcomp is used.

-Xint:
[
Tester.var_8 = 118
Tester.var_5 = 2076285318
Tester.var_7 = 73
Tester.var_6 = 1.39254183239738E308
]

-server -Xcomp:
[
Tester.var_8 = 118
Tester.var_5 = 2076285318
Tester.var_7 = 84
Tester.var_6 = 1.39254183239738E308
]

I observe such behavior on linux-x86/x64 with both JDK 6u10b11 and JDK 7b24.

Testcase is attached.
Added a testcase with similar error.
Added a number of cases with similar failure.
Don't know whether it's the same bug or not.
Also observed with HS10 (10.0-b19, jdk6u5-b11).