src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp

*** 1679,11 ***
  
        // Save (object->mark() | 1) into BasicLock's displaced header
        __ sd(swap_reg, Address(lock_reg, mark_word_offset));
  
        // src -> dest if dest == x10 else x10 <- dest
!       __ cmpxchg_obj_header(x10, lock_reg, obj_reg, t0, count, /*fallthrough*/nullptr);
  
        // Test if the oopMark is an obvious stack pointer, i.e.,
        //  1) (mark & 3) == 0, and
        //  2) sp <= mark < mark + os::pagesize()
        // These 3 tests can be done by evaluating the following
--- 1679,11 ---
  
        // Save (object->mark() | 1) into BasicLock's displaced header
        __ sd(swap_reg, Address(lock_reg, mark_word_offset));
  
        // src -> dest if dest == x10 else x10 <- dest
!       __ cmpxchg_obj_header(x10, lock_reg, obj_reg, t0, count, /*fallthrough*/NULL);
  
        // Test if the oopMark is an obvious stack pointer, i.e.,
        //  1) (mark & 3) == 0, and
        //  2) sp <= mark < mark + os::pagesize()
        // These 3 tests can be done by evaluating the following