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8324125: Improve class initialization barrier in TemplateTable::_new for RISC-V #17548

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8324125: Improve class initialization barrier in TemplateTable::_new for RISC-V #17548

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JDK-8324125: Improve class initialization barrier in TemplateTable::_…
Jan 23, 2024
0935a0b
Put the msg string on a separate line
Jan 25, 2024
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9 changes: 4 additions & 5 deletions src/hotspot/cpu/riscv/templateTable_riscv.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3547,11 +3547,10 @@ void TemplateTable::_new() {
// get InstanceKlass
__ load_resolved_klass_at_offset(x14, x13, x14, t0);

// make sure klass is initialized & doesn't have finalizer
// make sure klass is fully initialized
__ lbu(t0, Address(x14, InstanceKlass::init_state_offset()));
__ sub(t1, t0, (u1)InstanceKlass::fully_initialized);
__ bnez(t1, slow_case);
// make sure klass is initialized
assert(VM_Version::supports_fast_class_init_checks(),
"Optimization requires support for fast class initialization checks");
__ clinit_barrier(x14, t0, nullptr /*L_fast_path*/, &slow_case);

// get instance_size in InstanceKlass (scaled to a count of bytes)
__ lwu(x13, Address(x14, Klass::layout_helper_offset()));
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