[libc-commits] [libc] [libc][math] Implemented sinpif function (PR #97149)

[Hendrik Hübner via libc-commits]

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@@ -38,6 +38,16 @@ LIBC_INLINE int64_t small_range_reduction(double x, double &y) {
   return static_cast<int64_t>(kd);
 }
 
+// Return k and y, where
+//   k = round(x * 32) and y = (x * 32) - k.
+//   => pi * x = (k + y) * pi / 32
+LIBC_INLINE int64_t small_range_reduction_mul_pi(double x, double &y) {
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HendrikHuebner wrote:

If anyone has a better idea for how to name this function I'd love to hear it

https://github.com/llvm/llvm-project/pull/97149