src/share/vm/c1/c1_GraphBuilder.cpp

rev 3227 : 7133857: exp() and pow() should use the x87 ISA on x86
Summary: use x87 instructions to implement exp() and pow() in interpreter/c1/c2.
Reviewed-by:

@@ -2945,10 +2945,12 @@
   case vmIntrinsics::_dsin          : // fall through
   case vmIntrinsics::_dcos          : // fall through
   case vmIntrinsics::_dtan          : // fall through
   case vmIntrinsics::_dlog          : // fall through
   case vmIntrinsics::_dlog10        : // fall through
+  case vmIntrinsics::_dexp          : // fall through
+  case vmIntrinsics::_dpow          : // fall through
     {
       // Compiles where the root method is an intrinsic need a special
       // compilation environment because the bytecodes for the method
       // shouldn't be parsed during the compilation, only the special
       // Intrinsic node should be emitted.  If this isn't done the the

@@ -2965,10 +2967,13 @@
       // setup the initial block state
       _block = start_block;
       _state = start_block->state()->copy_for_parsing();
       _last  = start_block;
       load_local(doubleType, 0);
+      if (scope->method()->intrinsic_id() == vmIntrinsics::_dpow) {
+        load_local(doubleType, 2);
+      }
 
       // Emit the intrinsic node.
       bool result = try_inline_intrinsics(scope->method());
       if (!result) BAILOUT("failed to inline intrinsic");
       method_return(dpop());

@@ -3165,10 +3170,12 @@
     case vmIntrinsics::_dsin          : // fall through
     case vmIntrinsics::_dcos          : // fall through
     case vmIntrinsics::_dtan          : // fall through
     case vmIntrinsics::_dlog          : // fall through
     case vmIntrinsics::_dlog10        : // fall through
+    case vmIntrinsics::_dexp          : // fall through
+    case vmIntrinsics::_dpow          : // fall through
       if (!InlineMathNatives) return false;
       cantrap = false;
       preserves_state = true;
       break;