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6833129: specjvm98 fails with NullPointerException in the compiler with -XX:DeoptimizeALot

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Developed a reexecute logic for the interpreter to reexecute the bytecode when deopt happens

Reviewed-by: kvn, never, jrose, twisti
This commit is contained in:
Changpeng Fang 2009-07-31 17:12:33 -07:00
parent f2ea22a547
commit ae00753bf7
29 changed files with 465 additions and 241 deletions
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3
hotspot/src/share/vm/c1/c1_LIRAssembler.cpp
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@ -379,7 +379,8 @@ void LIR_Assembler::record_non_safepoint_debug_info() {
ValueStack* s = nth_oldest(vstack, n, s_bci);
if (s == NULL) break;
IRScope* scope = s->scope();
debug_info->describe_scope(pc_offset, scope->method(), s_bci);
//Always pass false for reexecute since these ScopeDescs are never used for deopt
debug_info->describe_scope(pc_offset, scope->method(), s_bci, false/*reexecute*/);
}
debug_info->end_non_safepoint(pc_offset);