src/cpu/x86/vm/macroAssembler_x86.cpp

*** 5785,5857 ****
    popa();
  }
  
  static const double     pi_4 =  0.7853981633974483;
  
- void MacroAssembler::trigfunc(char trig, int num_fpu_regs_in_use) {
-   // A hand-coded argument reduction for values in fabs(pi/4, pi/2)
-   // was attempted in this code; unfortunately it appears that the
-   // switch to 80-bit precision and back causes this to be
-   // unprofitable compared with simply performing a runtime call if
-   // the argument is out of the (-pi/4, pi/4) range.
- 
-   Register tmp = noreg;
-   if (!VM_Version::supports_cmov()) {
-     // fcmp needs a temporary so preserve rbx,
-     tmp = rbx;
-     push(tmp);
-   }
- 
-   Label slow_case, done;
-   if (trig == 't') {
-     ExternalAddress pi4_adr = (address)&pi_4;
-     if (reachable(pi4_adr)) {
-       // x ?<= pi/4
-       fld_d(pi4_adr);
-       fld_s(1);                // Stack:  X  PI/4  X
-       fabs();                  // Stack: |X| PI/4  X
-       fcmp(tmp);
-       jcc(Assembler::above, slow_case);
- 
-       // fastest case: -pi/4 <= x <= pi/4
-       ftan();
- 
-       jmp(done);
-     }
-   }
-   // slow case: runtime call
-   bind(slow_case);
- 
-   switch(trig) {
-   case 's':
-     {
-       fp_runtime_fallback(CAST_FROM_FN_PTR(address, SharedRuntime::dsin), 1, num_fpu_regs_in_use);
-     }
-     break;
-   case 'c':
-     {
-       fp_runtime_fallback(CAST_FROM_FN_PTR(address, SharedRuntime::dcos), 1, num_fpu_regs_in_use);
-     }
-     break;
-   case 't':
-     {
-       fp_runtime_fallback(CAST_FROM_FN_PTR(address, SharedRuntime::dtan), 1, num_fpu_regs_in_use);
-     }
-     break;
-   default:
-     assert(false, "bad intrinsic");
-     break;
-   }
- 
-   // Come here with result in F-TOS
-   bind(done);
- 
-   if (tmp != noreg) {
-     pop(tmp);
-   }
- }
- 
  // Look up the method for a megamorphic invokeinterface call.
  // The target method is determined by <intf_klass, itable_index>.
  // The receiver klass is in recv_klass.
  // On success, the result will be in method_result, and execution falls through.
  // On failure, execution transfers to the given label.
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