msvcr110: Add __libm_sse2_sqrt_precise implementation.

dlls/msvcr110/msvcr110.spec

@@ -1394,7 +1394,7 @@
 @ cdecl -arch=i386  _libm_sse2_log_precise() msvcrt.__libm_sse2_log
 @ cdecl -arch=i386  _libm_sse2_pow_precise() msvcrt.__libm_sse2_pow
 @ cdecl -arch=i386  _libm_sse2_sin_precise() msvcrt.__libm_sse2_sin
-@ stub -arch=i386  _libm_sse2_sqrt_precise
+@ cdecl -arch=i386  _libm_sse2_sqrt_precise() msvcrt.__libm_sse2_sqrt_precise
 @ cdecl -arch=i386  _libm_sse2_tan_precise() msvcrt.__libm_sse2_tan
 @ cdecl _loaddll(str) msvcrt._loaddll
 @ cdecl -arch=x86_64 _local_unwind(ptr ptr) msvcrt._local_unwind

dlls/msvcrt/math.c

@@ -2185,4 +2185,13 @@ void __cdecl __libm_sse2_tanf(void)
     __asm__ __volatile__( "movd %0,%%xmm0" : : "g" (f) );
 }
 
+/* __libm_sse2_sqrt_precise */
+void __cdecl __libm_sse2_sqrt_precise(void)
+{
+    double d;
+    __asm__ __volatile__( "movd %%xmm0,%0" : "=m" (d) );
+    d = sqrt( d );
+    __asm__ __volatile__( "movd %0,%%xmm0" : : "m" (d) );
+}
+
 #endif  /* __i386__ */

dlls/msvcrt/msvcrt.spec

@@ -1538,3 +1538,4 @@
 @ cdecl _fstat32(long ptr)
 @ cdecl _fstat64i32(long ptr)
 @ cdecl _is_exception_typeof(ptr ptr)
+@ cdecl -arch=i386 __libm_sse2_sqrt_precise()