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8343063: RISC-V: remove redundant reg copy in generate_resolve_blob

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Reviewed-by: fyang, rehn
This commit is contained in:
Hamlin Li 2024-10-25 14:28:23 +00:00
parent 4f8f395e2b
commit 1e35da8d33
1 changed files with 4 additions and 5 deletions
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9
src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp
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@ -2616,19 +2616,18 @@ RuntimeStub* SharedRuntime::generate_resolve_blob(SharedStubId id, address desti
__ reset_last_Java_frame(false);
// check for pending exceptions
Label pending;
__ ld(t0, Address(xthread, Thread::pending_exception_offset()));
__ bnez(t0, pending);
__ ld(t1, Address(xthread, Thread::pending_exception_offset()));
__ bnez(t1, pending);
// get the returned Method*
__ get_vm_result_2(xmethod, xthread);
__ sd(xmethod, Address(sp, reg_saver.reg_offset_in_bytes(xmethod)));
// x10 is where we want to jump, overwrite t0 which is saved and temporary
__ sd(x10, Address(sp, reg_saver.reg_offset_in_bytes(t0)));
// x10 is where we want to jump, overwrite t1 which is saved and temporary
__ sd(x10, Address(sp, reg_saver.reg_offset_in_bytes(t1)));
reg_saver.restore_live_registers(masm);
// We are back to the original state on entry and ready to go.
__ mv(t1, t0);
__ jr(t1);
// Pending exception after the safepoint