hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp
changeset 35146 9ebfec283f56
parent 35135 dd2ce9021031
child 35154 a9b3c1984a01
--- a/hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp	Wed Dec 23 16:24:19 2015 -0800
+++ b/hotspot/src/cpu/x86/vm/stubGenerator_x86_32.cpp	Wed Dec 23 21:09:50 2015 -0800
@@ -2126,15 +2126,6 @@
       __ trigfunc('t');
       __ ret(0);
     }
-    {
-      StubCodeMark mark(this, "StubRoutines", "pow");
-      StubRoutines::_intrinsic_pow = (double (*)(double,double)) __ pc();
-
-      __ fld_d(Address(rsp, 12));
-      __ fld_d(Address(rsp, 4));
-      __ pow_with_fallback(0);
-      __ ret(0);
-    }
   }
 
   // AES intrinsic stubs
@@ -3082,6 +3073,30 @@
 
  }
 
+ address generate_libmPow() {
+   address start = __ pc();
+
+   const XMMRegister x0 = xmm0;
+   const XMMRegister x1 = xmm1;
+   const XMMRegister x2 = xmm2;
+   const XMMRegister x3 = xmm3;
+
+   const XMMRegister x4 = xmm4;
+   const XMMRegister x5 = xmm5;
+   const XMMRegister x6 = xmm6;
+   const XMMRegister x7 = xmm7;
+
+   const Register tmp = rbx;
+
+   BLOCK_COMMENT("Entry:");
+   __ enter(); // required for proper stackwalking of RuntimeStub frame
+   __ fast_pow(x0, x1, x2, x3, x4, x5, x6, x7, rax, rcx, rdx, tmp);
+   __ leave(); // required for proper stackwalking of RuntimeStub frame
+   __ ret(0);
+
+   return start;
+
+ }
 
 
   // Safefetch stubs.
@@ -3310,6 +3325,7 @@
     if (VM_Version::supports_sse2()) {
       StubRoutines::_dexp = generate_libmExp();
       StubRoutines::_dlog = generate_libmLog();
+      StubRoutines::_dpow = generate_libmPow();
     }
   }