msvcrt: Use the __sindf() implementation from the bundled musl library.

dlls/msvcrt/math.c

@@ -219,25 +219,7 @@ float CDECL _chgsignf( float num )
 #endif
 
 #ifndef __i386__
-/* Copied from musl: src/math/__sindf.c */
-static float __sindf(double x)
-{
-    static const double S1 = -0x1.5555555555555p-3,
-        S2 = 0x1.1111111111111p-7,
-        S3 = -0x1.a01a01a01a01ap-13,
-        S4 = 0x1.71de3a556c734p-19;
-
-    double r, s, w, z;
-
-    z = x * x;
-    if (x > -7.8175831586122513e-03 && x < 7.8175831586122513e-03)
-        return x * (1 + S1 * z);
-
-    w = z * z;
-    r = S3 + z * S4;
-    s = z * x;
-    return (x + s * (S1 + z * S2)) + s * w * r;
-}
+extern float __sindf(double x);
 
 /* Copied from musl: src/math/__cosdf.c */
 static float __cosdf(double x)

libs/musl/src/math/__sindf.c

@@ -18,10 +18,10 @@
 
 /* |sin(x)/x - s(x)| < 2**-37.5 (~[-4.89e-12, 4.824e-12]). */
 static const double
-S1 = -0x15555554cbac77.0p-55, /* -0.166666666416265235595 */
-S2 =  0x111110896efbb2.0p-59, /*  0.0083333293858894631756 */
-S3 = -0x1a00f9e2cae774.0p-65, /* -0.000198393348360966317347 */
-S4 =  0x16cd878c3b46a7.0p-71; /*  0.0000027183114939898219064 */
+S1 = -0x1.5555555555555p-3,
+S2 =  0x1.1111111111111p-7,
+S3 = -0x1.a01a01a01a01ap-13,
+S4 =  0x1.71de3a556c734p-19;
 
 float __sindf(double x)
 {
@@ -29,6 +29,8 @@ float __sindf(double x)
 
 	/* Try to optimize for parallel evaluation as in __tandf.c. */
 	z = x*x;
+	if (x > -7.8175831586122513e-03 && x < 7.8175831586122513e-03)
+		return x * (1 + S1 * z);
 	w = z*z;
 	r = S3 + z*S4;
 	s = z*x;