Address comments.

Author: lntue

libc/src/math/generic/CMakeLists.txt

@@ -4097,7 +4097,6 @@ add_entrypoint_object(
   HDRS
     ../asin.h
   DEPENDS
-    libc.src.__support.FPUtil.fp_bits
     libc.src.__support.FPUtil.double_double
     libc.src.__support.FPUtil.dyadic_float
     libc.src.__support.FPUtil.fenv_impl

libc/src/math/generic/asin.cpp

@@ -146,7 +146,7 @@ LLVM_LIBC_FUNCTION(double, asin, (double x)) {
 
   // When |x| >= 0.5, we perform range reduction as follow:
   //
-  // Assume further that 0.5 < x <= 1, and let:
+  // Assume further that 0.5 <= x < 1, and let:
   //   y = asin(x)
   // We will use the double angle formula:
   //   cos(2y) = 1 - 2 sin^2(y)
@@ -174,7 +174,7 @@ LLVM_LIBC_FUNCTION(double, asin, (double x)) {
   //   h = u - v_hi^2 = (sqrt(u) - v_hi) * (sqrt(u) + v_hi)
   // Then:
   //   sqrt(u) = v_hi + h / (sqrt(u) + v_hi)
-  //            ~ v_hi + h / (2 * v_hi)
+  //           ~ v_hi + h / (2 * v_hi)
   // So we can use:
   //   v_lo = h / (2 * v_hi).
   // Then,

libc/test/src/math/smoke/asin_test.cpp

@@ -17,7 +17,6 @@ TEST_F(LlvmLibcAsinTest, SpecialNumbers) {
   EXPECT_FP_EQ_WITH_EXCEPTION_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asin(sNaN),
                                            FE_INVALID);
   EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asin(aNaN));
-  EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asin(aNaN));
   EXPECT_FP_EQ_ALL_ROUNDING(zero, LIBC_NAMESPACE::asin(zero));
   EXPECT_FP_EQ_ALL_ROUNDING(neg_zero, LIBC_NAMESPACE::asin(neg_zero));
   EXPECT_FP_EQ_ALL_ROUNDING(aNaN, LIBC_NAMESPACE::asin(inf));