--- old/src/cpu/x86/vm/stubGenerator_x86_32.cpp	2015-10-13 18:20:43.453173600 -0700
+++ new/src/cpu/x86/vm/stubGenerator_x86_32.cpp	2015-10-13 18:20:43.108139100 -0700
@@ -2095,14 +2095,6 @@
 
   void generate_math_stubs() {
     {
-      StubCodeMark mark(this, "StubRoutines", "log");
-      StubRoutines::_intrinsic_log = (double (*)(double)) __ pc();
-
-      __ fld_d(Address(rsp, 4));
-      __ flog();
-      __ ret(0);
-    }
-    {
       StubCodeMark mark(this, "StubRoutines", "log10");
       StubRoutines::_intrinsic_log10 = (double (*)(double)) __ pc();
 
@@ -3065,6 +3057,32 @@
 
   }
 
+ address generate_libmLog() {
+   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_log(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.
   void generate_safefetch(const char* name, int size, address* entry,
@@ -3288,6 +3306,7 @@
     }
     if (VM_Version::supports_sse2()) {
       StubRoutines::_dexp = generate_libmExp();
+      StubRoutines::_dlog = generate_libmLog();
     }
   }