src/hotspot/cpu/x86/templateInterpreterGenerator_x86_64.cpp

@@ -430,29 +430,18 @@
     if (StubRoutines::dtan() != NULL) {
       __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dtan())));
     } else {
       __ call_VM_leaf0(CAST_FROM_FN_PTR(address, SharedRuntime::dtan));
     }
+  } else if (kind == Interpreter::java_lang_math_abs) {
+    assert(StubRoutines::x86::double_sign_mask() != NULL, "not initialized");
+    __ movdbl(xmm0, Address(rsp, wordSize));
+    __ andpd(xmm0, ExternalAddress(StubRoutines::x86::double_sign_mask()));
   } else {
-    __ fld_d(Address(rsp, wordSize));
-    switch (kind) {
-    case Interpreter::java_lang_math_abs:
-      __ fabs();
-      break;
-    default:
       ShouldNotReachHere();
     }
 
-    // return double result in xmm0 for interpreter and compilers.
-    __ subptr(rsp, 2*wordSize);
-    // Round to 64bit precision
-    __ fstp_d(Address(rsp, 0));
-    __ movdbl(xmm0, Address(rsp, 0));
-    __ addptr(rsp, 2*wordSize);
-  }
-
-
   __ pop(rax);
   __ mov(rsp, r13);
   __ jmp(rax);
 
   return entry_point;