src/cpu/x86/vm/templateTable_x86_64.cpp

rev 9481 : [backport] Purge ShenandoahVerify(Reads|Writes)ToFromSpace.
rev 9610 : Amend "Refactor asm acmp" with a few missing changes

*** 611,624 ****
  
  void TemplateTable::index_check(Register array, Register index) {
    // destroys rbx
    // check array
  
-   if (ShenandoahVerifyReadsToFromSpace) {
-     oopDesc::bs()->interpreter_read_barrier(_masm, array);
-   }
- 
    __ null_check(array, arrayOopDesc::length_offset_in_bytes());
    // sign extend index for use by indexed load
    __ movl2ptr(index, index);
    // check index
    __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes()));
--- 611,620 ----
*** 1870,1881 ****
  void TemplateTable::if_acmp(Condition cc) {
    transition(atos, vtos);
    // assume branch is more often taken than not (loops use backward branches)
    Label not_taken;
    __ pop_ptr(rdx);
!   __ cmpptr(rdx, rax);
!   oopDesc::bs()->asm_acmp_barrier(_masm, rdx, rax);
    __ jcc(j_not(cc), not_taken);
    branch(false, false);
    __ bind(not_taken);
    __ profile_not_taken_branch(rax);
  }
--- 1866,1876 ----
  void TemplateTable::if_acmp(Condition cc) {
    transition(atos, vtos);
    // assume branch is more often taken than not (loops use backward branches)
    Label not_taken;
    __ pop_ptr(rdx);
!   __ cmpoops(rdx, rax);
    __ jcc(j_not(cc), not_taken);
    branch(false, false);
    __ bind(not_taken);
    __ profile_not_taken_branch(rax);
  }
*** 3520,3532 ****
            c_rarg1, c_rarg2, c_rarg3);
  }
  
  void TemplateTable::arraylength() {
    transition(atos, itos);
-   if (ShenandoahVerifyReadsToFromSpace) {
-     oopDesc::bs()->interpreter_read_barrier(_masm, rax);
-   }
    __ null_check(rax, arrayOopDesc::length_offset_in_bytes());
    __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes()));
  }
  
  void TemplateTable::checkcast() {
--- 3515,3524 ----
*** 3547,3561 ****
    __ push(atos); // save receiver for result, and for GC
    call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc));
    // vm_result_2 has metadata result
    __ get_vm_result_2(rax, r15_thread);
    __ pop_ptr(rdx); // restore receiver
-   if (ShenandoahVerifyReadsToFromSpace) {
-     __ jmp(resolved);
-   } else {
      __ jmpb(resolved);
-   }
  
    // Get superklass in rax and subklass in rbx
    __ bind(quicked);
    __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check
    __ movptr(rax, Address(rcx, rbx,
--- 3539,3549 ----