nit

Author: wldfngrs

libc/src/math/generic/atanf16.cpp

@@ -21,8 +21,8 @@
 namespace LIBC_NAMESPACE_DECL {
 
 // Generated by Solly using the following command:
-// > round(pi/2, D, RN);
-static constexpr float PI_2 = 0x1.921fb54442d18p0f;
+// > round(pi/2, SG, RN);
+static constexpr float PI_2 = 0x1.921fb6p0;
 
 #ifndef LIBC_MATH_HAS_SKIP_ACCURATE_PASS
 static constexpr size_t N_EXCEPTS = 6;
@@ -48,7 +48,7 @@ LLVM_LIBC_FUNCTION(float16, atanf16, (float16 x)) {
   float sign = (x_sign ? -1.0 : 1.0);
 
   // |x| >= +/-inf
-  if (LIBC_UNLIKELY(x_abs >= 0x7c00U)) {
+  if (LIBC_UNLIKELY(x_abs >= 0x7c00)) {
     if (xbits.is_nan()) {
       if (xbits.is_signaling_nan()) {
         fputil::raise_except_if_required(FE_INVALID);
@@ -71,11 +71,10 @@ LLVM_LIBC_FUNCTION(float16, atanf16, (float16 x)) {
 #endif
 
   // |x| <= 0x1p0, |x| <= 1
-  if (x_abs <= 0x3C00) {
+  if (x_abs <= 0x3c00) {
     // atanf16(+/-0) = +/-0
-    if (LIBC_UNLIKELY(x_abs == 0)) {
+    if (LIBC_UNLIKELY(x_abs == 0))
       return x;
-    }
 
     // Degree-14 minimax odd polynomial of atan(x) generated by Sollya with:
     // > P = fpminimax(atan(x)/x, [|0, 2, 4, 6, 8, 10, 12, 14|], [|SG...|],
@@ -90,7 +89,7 @@ LLVM_LIBC_FUNCTION(float16, atanf16, (float16 x)) {
   // y = atan(x) = sign(x) * atan(|x|)
   // atan(|x|) = pi/2 - atan(1/|x|)
   // Recall, 1/|x| < 1
-  float x_inv_sq = 1 / xsq;
+  float x_inv_sq = 1.0f / xsq;
   float x_inv = fputil::sqrt<float>(x_inv_sq);
 
   // Degree-14 minimax odd polynomial of atan(x) generated by Sollya with: