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8223213: Implement fast class initialization checks on x86-64

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Reviewed-by: kvn, redestad, dholmes, mdoerr, coleenp
This commit is contained in:
Vladimir Ivanov 2019-05-30 13:39:13 +03:00
parent ba723fbdfb
commit e72bfe15ad
33 changed files with 734 additions and 44 deletions
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5
src/hotspot/share/opto/compile.cpp
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@ -654,6 +654,7 @@ Compile::Compile( ciEnv* ci_env, C2Compiler* compiler, ciMethod* target, int osr
_trace_opto_output(directive->TraceOptoOutputOption),
#endif
_has_method_handle_invokes(false),
_clinit_barrier_on_entry(false),
_comp_arena(mtCompiler),
_barrier_set_state(BarrierSet::barrier_set()->barrier_set_c2()->create_barrier_state(comp_arena())),
_env(ci_env),
@ -988,6 +989,7 @@ Compile::Compile( ciEnv* ci_env,
_trace_opto_output(directive->TraceOptoOutputOption),
#endif
_has_method_handle_invokes(false),
_clinit_barrier_on_entry(false),
_comp_arena(mtCompiler),
_env(ci_env),
_directive(directive),
@ -1170,6 +1172,9 @@ void Compile::Init(int aliaslevel) {
}
}
#endif
if (VM_Version::supports_fast_class_init_checks() && has_method() && !is_osr_compilation() && method()->needs_clinit_barrier()) {
set_clinit_barrier_on_entry(true);
}
if (debug_info()->recording_non_safepoints()) {
set_node_note_array(new(comp_arena()) GrowableArray<Node_Notes*>
(comp_arena(), 8, 0, NULL));