JDK-6528700 : C2 CTW failed in generate_i2c2i_adapters with -XX:+VerifyOops
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 7
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- OS: solaris_9
- CPU: sparc
- Submitted: 2007-02-27
- Updated: 2010-04-03
- Resolved: 2007-03-15
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Resolved: Release in which this issue/RFE has been resolved.
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| JDK 6 | JDK 7 | Other |
|---|---|---|
6u4Fixed  |
7Fixed |
hs10Fixed |
Description
I am running CTW with -XX:+VerifyOops and got the next failure:
=============== DEBUG MESSAGE: broken oop G1_scratch (/export/home2/work/6523674/src/cpu/sparc/vm/sharedRuntime_sparc.cpp:1198) ================
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/assembler_sparc.cpp:1925
#
# An unexpected error has been detected by Java Runtime Environment:
#
# Internal Error (/export/home2/work/6523674/src/cpu/sparc/vm/assembler_sparc.cpp, 1925 [ Patched ]), pid=9050, tid=1
#
# Java VM: Java HotSpot(TM) Server VM (1.7.0-internal-jvmg mixed mode)
#
# Error: assert(false,"error")
# An error report file with more information is saved as hs_err_pid9050.log
#
It failed in the next code in generate_i2c2i_adapters:
#if !defined(_LP64) && defined(COMPILER2)
__ save(SP, -frame::register_save_words*wordSize, SP);
__ ld_ptr(G5_method, compiledICHolderOopDesc::holder_klass_offset(), R_temp);
__ verify_oop(G1_scratch);
__ cmp(G3_scratch, R_temp);
__ restore();
#else
But R_temp is defined as L0 above this code:
#if !defined(_LP64) && defined(COMPILER2)
Register R_temp = L0; // another scratch register
#else
Register R_temp = G1; // another scratch register
#endif
Comments
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