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8337788: RISC-V: Cleanup code in MacroAssembler::reserved_stack_check

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Reviewed-by: fyang, rehn, fjiang
This commit is contained in:
Gui Cao 2024-08-06 02:16:19 +00:00 committed by Fei Yang
parent 965d6b9cbe
commit 73718fb8a3
1 changed files with 15 additions and 19 deletions
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34
src/hotspot/cpu/riscv/macroAssembler_riscv.cpp
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@ -4130,29 +4130,25 @@ void MacroAssembler::remove_frame(int framesize) {
}
void MacroAssembler::reserved_stack_check() {
// testing if reserved zone needs to be enabled
Label no_reserved_zone_enabling;
// testing if reserved zone needs to be enabled
Label no_reserved_zone_enabling;
ld(t0, Address(xthread, JavaThread::reserved_stack_activation_offset()));
bltu(sp, t0, no_reserved_zone_enabling);
ld(t0, Address(xthread, JavaThread::reserved_stack_activation_offset()));
bltu(sp, t0, no_reserved_zone_enabling);
enter(); // RA and FP are live.
mv(c_rarg0, xthread);
rt_call(CAST_FROM_FN_PTR(address, SharedRuntime::enable_stack_reserved_zone));
leave();
enter(); // RA and FP are live.
mv(c_rarg0, xthread);
rt_call(CAST_FROM_FN_PTR(address, SharedRuntime::enable_stack_reserved_zone));
leave();
// We have already removed our own frame.
// throw_delayed_StackOverflowError will think that it's been
// called by our caller.
RuntimeAddress target(StubRoutines::throw_delayed_StackOverflowError_entry());
relocate(target.rspec(), [&] {
int32_t offset;
movptr(t0, target.target(), offset);
jr(t0, offset);
});
should_not_reach_here();
// We have already removed our own frame.
// throw_delayed_StackOverflowError will think that it's been
// called by our caller.
la(t0, RuntimeAddress(StubRoutines::throw_delayed_StackOverflowError_entry()));
jr(t0);
should_not_reach_here();
bind(no_reserved_zone_enabling);
bind(no_reserved_zone_enabling);
}
// Move the address of the polling page into dest.