diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
index 35b724b3e3df9a..8f66209ab54c55 100644
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -27,9 +27,17 @@ add_header_library(
 )
 
 add_header_library(
-  builtin_wrappers
+  bit
   HDRS
-    builtin_wrappers.h
+    bit.h
+  DEPENDS
+    libc.src.__support.macros.attributes
+)
+
+add_header_library(
+  math_extras
+  HDRS
+    math_extras.h
   DEPENDS
     .named_pair
     libc.src.__support.CPP.type_traits
@@ -98,7 +106,6 @@ add_header_library(
     libc.src.__support.CPP.type_traits
 )
 
-
 add_header_library(
   float_to_string
   HDRS
@@ -131,18 +138,17 @@ add_header_library(
     .str_to_integer
     .str_to_num_result
     .uint128
-    libc.src.__support.CPP.optional
+    libc.src.__support.common
     libc.src.__support.CPP.limits
+    libc.src.__support.CPP.optional
+    libc.src.__support.FPUtil.dyadic_float
     libc.src.__support.FPUtil.fenv_impl
     libc.src.__support.FPUtil.fp_bits
     libc.src.__support.FPUtil.rounding_mode
-    libc.src.__support.FPUtil.dyadic_float
-    libc.src.__support.builtin_wrappers
-    libc.src.__support.common
+    libc.src.__support.bit
     libc.src.errno.errno
 )
 
-
 add_header_library(
   integer_operations
   HDRS
@@ -187,10 +193,10 @@ add_header_library(
   HDRS
     integer_utils.h
   DEPENDS
-    .builtin_wrappers
+    .bit
     .number_pair
-    libc.src.__support.CPP.type_traits
     libc.src.__support.common
+    libc.src.__support.CPP.type_traits
 )
 
 add_header_library(
@@ -198,9 +204,10 @@ add_header_library(
   HDRS
     UInt.h
   DEPENDS
-    .builtin_wrappers
-    .number_pair
+    .bit
     .integer_utils
+    .math_extras
+    .number_pair
     libc.src.__support.CPP.array
     libc.src.__support.CPP.type_traits
     libc.src.__support.macros.optimization
diff --git a/libc/src/__support/FPUtil/CMakeLists.txt b/libc/src/__support/FPUtil/CMakeLists.txt
index 4025c2a5d19a53..bf6e39f436c8c4 100644
--- a/libc/src/__support/FPUtil/CMakeLists.txt
+++ b/libc/src/__support/FPUtil/CMakeLists.txt
@@ -45,12 +45,12 @@ add_header_library(
   HDRS
     FPBits.h
   DEPENDS
-    .platform_defs
     .float_properties
-    libc.src.__support.builtin_wrappers
+    .platform_defs
+    libc.src.__support.common
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
-    libc.src.__support.common
+    libc.src.__support.bit
 )
 
 add_header_library(
@@ -153,10 +153,10 @@ add_header_library(
     .fenv_impl
     .fp_bits
     .rounding_mode
-    libc.src.__support.builtin_wrappers
+    libc.src.__support.common
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
-    libc.src.__support.common
+    libc.src.__support.bit
     libc.src.__support.uint128
 )
 
diff --git a/libc/src/__support/FPUtil/FPBits.h b/libc/src/__support/FPUtil/FPBits.h
index 37e9bc9cfc84c3..0db90d1e36df0c 100644
--- a/libc/src/__support/FPUtil/FPBits.h
+++ b/libc/src/__support/FPUtil/FPBits.h
@@ -13,7 +13,7 @@
 
 #include "src/__support/CPP/bit.h"
 #include "src/__support/CPP/type_traits.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/common.h"
 
 #include "FloatProperties.h"
diff --git a/libc/src/__support/FPUtil/Hypot.h b/libc/src/__support/FPUtil/Hypot.h
index 357d9a6e99c745..db2a62fbdf2a10 100644
--- a/libc/src/__support/FPUtil/Hypot.h
+++ b/libc/src/__support/FPUtil/Hypot.h
@@ -16,7 +16,7 @@
 #include "src/__support/CPP/bit.h"
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/UInt128.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/common.h"
 
 namespace LIBC_NAMESPACE {
diff --git a/libc/src/__support/FPUtil/generic/CMakeLists.txt b/libc/src/__support/FPUtil/generic/CMakeLists.txt
index 7f986d05adedf9..cf603e7987e1d6 100644
--- a/libc/src/__support/FPUtil/generic/CMakeLists.txt
+++ b/libc/src/__support/FPUtil/generic/CMakeLists.txt
@@ -4,16 +4,16 @@ add_header_library(
     sqrt.h
     sqrt_80_bit_long_double.h
   DEPENDS
+    libc.include.fenv
+    libc.src.__support.common
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
     libc.src.__support.FPUtil.fenv_impl
     libc.src.__support.FPUtil.fp_bits
     libc.src.__support.FPUtil.platform_defs
     libc.src.__support.FPUtil.rounding_mode
-    libc.src.__support.builtin_wrappers
-    libc.src.__support.common
+    libc.src.__support.bit
     libc.src.__support.uint128
-    libc.include.fenv
 )
 
 add_header_library(
@@ -27,8 +27,8 @@ add_header_library(
     libc.src.__support.FPUtil.float_properties
     libc.src.__support.FPUtil.fp_bits
     libc.src.__support.FPUtil.rounding_mode
-    libc.src.__support.builtin_wrappers
     libc.src.__support.macros.optimization
+    libc.src.__support.bit
     libc.src.__support.uint128
 )
 
@@ -43,7 +43,7 @@ add_header_library(
     libc.src.__support.FPUtil.float_properties
     libc.src.__support.FPUtil.fp_bits
     libc.src.__support.FPUtil.rounding_mode
-    libc.src.__support.builtin_wrappers
     libc.src.__support.macros.optimization
+    libc.src.__support.bit
     libc.src.math.generic.math_utils
 )
diff --git a/libc/src/__support/FPUtil/generic/FMA.h b/libc/src/__support/FPUtil/generic/FMA.h
index b90b134926bb64..5a856d14473304 100644
--- a/libc/src/__support/FPUtil/generic/FMA.h
+++ b/libc/src/__support/FPUtil/generic/FMA.h
@@ -15,7 +15,7 @@
 #include "src/__support/FPUtil/FloatProperties.h"
 #include "src/__support/FPUtil/rounding_mode.h"
 #include "src/__support/UInt128.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/macros/attributes.h"   // LIBC_INLINE
 #include "src/__support/macros/optimization.h" // LIBC_UNLIKELY
 
diff --git a/libc/src/__support/FPUtil/generic/FMod.h b/libc/src/__support/FPUtil/generic/FMod.h
index ff320f36ee2277..6f934cd4a87bd4 100644
--- a/libc/src/__support/FPUtil/generic/FMod.h
+++ b/libc/src/__support/FPUtil/generic/FMod.h
@@ -13,7 +13,7 @@
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/FPUtil/FEnvImpl.h"
 #include "src/__support/FPUtil/FPBits.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/macros/optimization.h" // LIBC_UNLIKELY
 #include "src/math/generic/math_utils.h"
 
diff --git a/libc/src/__support/FPUtil/generic/sqrt.h b/libc/src/__support/FPUtil/generic/sqrt.h
index 7d446d3a5ffb13..db9f4b11eb17c5 100644
--- a/libc/src/__support/FPUtil/generic/sqrt.h
+++ b/libc/src/__support/FPUtil/generic/sqrt.h
@@ -17,7 +17,7 @@
 #include "src/__support/FPUtil/PlatformDefs.h"
 #include "src/__support/FPUtil/rounding_mode.h"
 #include "src/__support/UInt128.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/common.h"
 
 namespace LIBC_NAMESPACE {
diff --git a/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h b/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
index 685a90dba7c704..dbbb238ca24d1b 100644
--- a/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
+++ b/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
@@ -14,7 +14,7 @@
 #include "src/__support/FPUtil/PlatformDefs.h"
 #include "src/__support/FPUtil/rounding_mode.h"
 #include "src/__support/UInt128.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/common.h"
 
 namespace LIBC_NAMESPACE {
diff --git a/libc/src/__support/UInt.h b/libc/src/__support/UInt.h
index 9aeb239b8328be..f46e31ae03db29 100644
--- a/libc/src/__support/UInt.h
+++ b/libc/src/__support/UInt.h
@@ -13,9 +13,10 @@
 #include "src/__support/CPP/limits.h"
 #include "src/__support/CPP/optional.h"
 #include "src/__support/CPP/type_traits.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h" // unsafe_clz
 #include "src/__support/integer_utils.h"
 #include "src/__support/macros/optimization.h" // LIBC_UNLIKELY
+#include "src/__support/math_extras.h"         // SumCarry, DiffBorrow
 #include "src/__support/number_pair.h"
 
 #include <stddef.h> // For size_t
@@ -33,7 +34,9 @@ template <size_t Bits, bool Signed> struct BigInt {
   static LIBC_INLINE_VAR constexpr uint64_t MASK32 = 0xFFFFFFFFu;
 
   static LIBC_INLINE constexpr uint64_t low(uint64_t v) { return v & MASK32; }
-  static LIBC_INLINE constexpr uint64_t high(uint64_t v) { return (v >> 32) & MASK32; }
+  static LIBC_INLINE constexpr uint64_t high(uint64_t v) {
+    return (v >> 32) & MASK32;
+  }
 
   LIBC_INLINE constexpr BigInt() = default;
 
@@ -93,7 +96,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     }
   }
 
-  LIBC_INLINE constexpr explicit BigInt(const cpp::array<uint64_t, WORDCOUNT> &words) {
+  LIBC_INLINE constexpr explicit BigInt(
+      const cpp::array<uint64_t, WORDCOUNT> &words) {
     for (size_t i = 0; i < WORDCOUNT; ++i)
       val[i] = words[i];
   }
@@ -143,7 +147,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return s.carry;
   }
 
-  LIBC_INLINE constexpr BigInt<Bits, Signed> operator+(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr BigInt<Bits, Signed>
+  operator+(const BigInt<Bits, Signed> &other) const {
     BigInt<Bits, Signed> result;
     SumCarry<uint64_t> s{0, 0};
     for (size_t i = 0; i < WORDCOUNT; ++i) {
@@ -155,7 +160,8 @@ template <size_t Bits, bool Signed> struct BigInt {
 
   // This will only apply when initializing a variable from constant values, so
   // it will always use the constexpr version of add_with_carry.
-  LIBC_INLINE constexpr BigInt<Bits, Signed> operator+(BigInt<Bits, Signed> &&other) const {
+  LIBC_INLINE constexpr BigInt<Bits, Signed>
+  operator+(BigInt<Bits, Signed> &&other) const {
     BigInt<Bits, Signed> result;
     SumCarry<uint64_t> s{0, 0};
     for (size_t i = 0; i < WORDCOUNT; ++i) {
@@ -182,7 +188,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return d.borrow;
   }
 
-  LIBC_INLINE BigInt<Bits, Signed> operator-(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE BigInt<Bits, Signed>
+  operator-(const BigInt<Bits, Signed> &other) const {
     BigInt<Bits, Signed> result;
     DiffBorrow<uint64_t> d{0, 0};
     for (size_t i = 0; i < WORDCOUNT; ++i) {
@@ -192,7 +199,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return result;
   }
 
-  LIBC_INLINE constexpr BigInt<Bits, Signed> operator-(BigInt<Bits, Signed> &&other) const {
+  LIBC_INLINE constexpr BigInt<Bits, Signed>
+  operator-(BigInt<Bits, Signed> &&other) const {
     BigInt<Bits, Signed> result;
     DiffBorrow<uint64_t> d{0, 0};
     for (size_t i = 0; i < WORDCOUNT; ++i) {
@@ -317,7 +325,7 @@ template <size_t Bits, bool Signed> struct BigInt {
   //    256      4        16          10            3
   //    512      8        64          36            7
   constexpr BigInt<Bits, Signed>
-  LIBC_INLINE quick_mul_hi(const BigInt<Bits, Signed> &other) const {
+      LIBC_INLINE quick_mul_hi(const BigInt<Bits, Signed> &other) const {
     BigInt<Bits, Signed> result(0);
     BigInt<128, Signed> partial_sum(0);
     uint64_t carry = 0;
@@ -407,8 +415,8 @@ template <size_t Bits, bool Signed> struct BigInt {
   //   Since the remainder of each division step < x < 2^32, the computation of
   // each step is now properly contained within uint64_t.
   //   And finally we perform some extra alignment steps for the remaining bits.
-  LIBC_INLINE constexpr optional<BigInt<Bits, Signed>> div_uint32_times_pow_2(uint32_t x,
-                                                                  size_t e) {
+  LIBC_INLINE constexpr optional<BigInt<Bits, Signed>>
+  div_uint32_times_pow_2(uint32_t x, size_t e) {
     BigInt<Bits, Signed> remainder(0);
 
     if (x == 0) {
@@ -729,7 +737,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return result;
   }
 
-  LIBC_INLINE constexpr bool operator==(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr bool
+  operator==(const BigInt<Bits, Signed> &other) const {
     for (size_t i = 0; i < WORDCOUNT; ++i) {
       if (val[i] != other.val[i])
         return false;
@@ -737,7 +746,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return true;
   }
 
-  LIBC_INLINE constexpr bool operator!=(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr bool
+  operator!=(const BigInt<Bits, Signed> &other) const {
     for (size_t i = 0; i < WORDCOUNT; ++i) {
       if (val[i] != other.val[i])
         return true;
@@ -745,7 +755,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return false;
   }
 
-  LIBC_INLINE constexpr bool operator>(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr bool
+  operator>(const BigInt<Bits, Signed> &other) const {
     if constexpr (Signed) {
       // Check for different signs;
       bool a_sign = val[WORDCOUNT - 1] >> 63;
@@ -766,7 +777,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return false;
   }
 
-  LIBC_INLINE constexpr bool operator>=(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr bool
+  operator>=(const BigInt<Bits, Signed> &other) const {
     if constexpr (Signed) {
       // Check for different signs;
       bool a_sign = val[WORDCOUNT - 1] >> 63;
@@ -787,7 +799,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return true;
   }
 
-  LIBC_INLINE constexpr bool operator<(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr bool
+  operator<(const BigInt<Bits, Signed> &other) const {
     if constexpr (Signed) {
       // Check for different signs;
       bool a_sign = val[WORDCOUNT - 1] >> 63;
@@ -809,7 +822,8 @@ template <size_t Bits, bool Signed> struct BigInt {
     return false;
   }
 
-  LIBC_INLINE constexpr bool operator<=(const BigInt<Bits, Signed> &other) const {
+  LIBC_INLINE constexpr bool
+  operator<=(const BigInt<Bits, Signed> &other) const {
     if constexpr (Signed) {
       // Check for different signs;
       bool a_sign = val[WORDCOUNT - 1] >> 63;
@@ -857,7 +871,9 @@ template <size_t Bits, bool Signed> struct BigInt {
   }
 
   // Return the i-th 64-bit word of the number.
-  LIBC_INLINE constexpr const uint64_t &operator[](size_t i) const { return val[i]; }
+  LIBC_INLINE constexpr const uint64_t &operator[](size_t i) const {
+    return val[i];
+  }
 
   // Return the i-th 64-bit word of the number.
   LIBC_INLINE constexpr uint64_t &operator[](size_t i) { return val[i]; }
diff --git a/libc/src/__support/bit.h b/libc/src/__support/bit.h
new file mode 100644
index 00000000000000..d0a15c89b7b45e
--- /dev/null
+++ b/libc/src/__support/bit.h
@@ -0,0 +1,77 @@
+//===-- Mimics llvm/ADT/Bit.h -----------------------------------*- C++ -*-===//
+// Provides useful bit functions.
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC___SUPPORT_BIT_H
+#define LLVM_LIBC_SRC___SUPPORT_BIT_H
+
+#include "src/__support/macros/attributes.h" // LIBC_INLINE
+
+namespace LIBC_NAMESPACE {
+
+// The following overloads are matched based on what is accepted by
+// __builtin_clz/ctz* rather than using the exactly-sized aliases from stdint.h.
+// This way, we can avoid making any assumptions about integer sizes and let the
+// compiler match for us.
+namespace __internal {
+
+template <typename T> LIBC_INLINE int constexpr correct_zero(T val, int bits) {
+  if (val == T(0))
+    return sizeof(T(0)) * 8;
+  else
+    return bits;
+}
+
+template <typename T> LIBC_INLINE constexpr int clz(T val);
+template <> LIBC_INLINE int clz<unsigned int>(unsigned int val) {
+  return __builtin_clz(val);
+}
+template <>
+LIBC_INLINE constexpr int clz<unsigned long int>(unsigned long int val) {
+  return __builtin_clzl(val);
+}
+template <>
+LIBC_INLINE constexpr int
+clz<unsigned long long int>(unsigned long long int val) {
+  return __builtin_clzll(val);
+}
+
+template <typename T> LIBC_INLINE constexpr int ctz(T val);
+template <> LIBC_INLINE int ctz<unsigned int>(unsigned int val) {
+  return __builtin_ctz(val);
+}
+template <>
+LIBC_INLINE constexpr int ctz<unsigned long int>(unsigned long int val) {
+  return __builtin_ctzl(val);
+}
+template <>
+LIBC_INLINE constexpr int
+ctz<unsigned long long int>(unsigned long long int val) {
+  return __builtin_ctzll(val);
+}
+} // namespace __internal
+
+template <typename T> LIBC_INLINE constexpr int safe_ctz(T val) {
+  return __internal::correct_zero(val, __internal::ctz(val));
+}
+
+template <typename T> LIBC_INLINE constexpr int unsafe_ctz(T val) {
+  return __internal::ctz(val);
+}
+
+template <typename T> LIBC_INLINE constexpr int safe_clz(T val) {
+  return __internal::correct_zero(val, __internal::clz(val));
+}
+
+template <typename T> LIBC_INLINE constexpr int unsafe_clz(T val) {
+  return __internal::clz(val);
+}
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC___SUPPORT_BIT_H
diff --git a/libc/src/__support/integer_utils.h b/libc/src/__support/integer_utils.h
index 7b62cb0d9f5059..433e99227bcfd4 100644
--- a/libc/src/__support/integer_utils.h
+++ b/libc/src/__support/integer_utils.h
@@ -12,7 +12,7 @@
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/common.h"
 
-#include "builtin_wrappers.h"
+#include "bit.h"
 #include "number_pair.h"
 
 #include <stdint.h>
diff --git a/libc/src/__support/builtin_wrappers.h b/libc/src/__support/math_extras.h
similarity index 72%
rename from libc/src/__support/builtin_wrappers.h
rename to libc/src/__support/math_extras.h
index bd307a3544cd93..cc22aa49d02601 100644
--- a/libc/src/__support/builtin_wrappers.h
+++ b/libc/src/__support/math_extras.h
@@ -1,5 +1,5 @@
-//===--Convenient template for builtins -------------------------*- C++ -*-===//
-//             (Count Lead Zeroes) and (Count Trailing Zeros)
+//===-- Mimics llvm/Support/MathExtras.h ------------------------*- C++ -*-===//
+// Provides useful math functions.
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_LIBC_SRC___SUPPORT_BUILTIN_WRAPPERS_H
-#define LLVM_LIBC_SRC___SUPPORT_BUILTIN_WRAPPERS_H
+#ifndef LLVM_LIBC_SRC___SUPPORT_MATH_EXTRAS_H
+#define LLVM_LIBC_SRC___SUPPORT_MATH_EXTRAS_H
 
 #include "named_pair.h"
 #include "src/__support/CPP/type_traits.h"
@@ -17,64 +17,6 @@
 
 namespace LIBC_NAMESPACE {
 
-// The following overloads are matched based on what is accepted by
-// __builtin_clz/ctz* rather than using the exactly-sized aliases from stdint.h.
-// This way, we can avoid making any assumptions about integer sizes and let the
-// compiler match for us.
-namespace __internal {
-
-template <typename T> LIBC_INLINE int constexpr correct_zero(T val, int bits) {
-  if (val == T(0))
-    return sizeof(T(0)) * 8;
-  else
-    return bits;
-}
-
-template <typename T> LIBC_INLINE constexpr int clz(T val);
-template <> LIBC_INLINE int clz<unsigned int>(unsigned int val) {
-  return __builtin_clz(val);
-}
-template <>
-LIBC_INLINE constexpr int clz<unsigned long int>(unsigned long int val) {
-  return __builtin_clzl(val);
-}
-template <>
-LIBC_INLINE constexpr int
-clz<unsigned long long int>(unsigned long long int val) {
-  return __builtin_clzll(val);
-}
-
-template <typename T> LIBC_INLINE constexpr int ctz(T val);
-template <> LIBC_INLINE int ctz<unsigned int>(unsigned int val) {
-  return __builtin_ctz(val);
-}
-template <>
-LIBC_INLINE constexpr int ctz<unsigned long int>(unsigned long int val) {
-  return __builtin_ctzl(val);
-}
-template <>
-LIBC_INLINE constexpr int
-ctz<unsigned long long int>(unsigned long long int val) {
-  return __builtin_ctzll(val);
-}
-} // namespace __internal
-
-template <typename T> LIBC_INLINE constexpr int safe_ctz(T val) {
-  return __internal::correct_zero(val, __internal::ctz(val));
-}
-
-template <typename T> LIBC_INLINE constexpr int unsafe_ctz(T val) {
-  return __internal::ctz(val);
-}
-
-template <typename T> LIBC_INLINE constexpr int safe_clz(T val) {
-  return __internal::correct_zero(val, __internal::clz(val));
-}
-
-template <typename T> LIBC_INLINE constexpr int unsafe_clz(T val) {
-  return __internal::clz(val);
-}
-
 // Add with carry
 DEFINE_NAMED_PAIR_TEMPLATE(SumCarry, sum, carry);
 
@@ -223,4 +165,4 @@ sub_with_borrow<unsigned long long>(unsigned long long a, unsigned long long b,
 
 } // namespace LIBC_NAMESPACE
 
-#endif // LLVM_LIBC_SRC___SUPPORT_BUILTIN_WRAPPERS_H
+#endif // LLVM_LIBC_SRC___SUPPORT_MATH_EXTRAS_H
diff --git a/libc/src/__support/str_to_float.h b/libc/src/__support/str_to_float.h
index e827e3322fac11..81ab36dbf9471f 100644
--- a/libc/src/__support/str_to_float.h
+++ b/libc/src/__support/str_to_float.h
@@ -16,7 +16,7 @@
 #include "src/__support/FPUtil/dyadic_float.h"
 #include "src/__support/FPUtil/rounding_mode.h"
 #include "src/__support/UInt128.h"
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/common.h"
 #include "src/__support/ctype_utils.h"
 #include "src/__support/detailed_powers_of_ten.h"
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index 413ac049a22b84..53805022108281 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -775,10 +775,12 @@ add_entrypoint_object(
     ../powf.h
   DEPENDS
     .common_constants
-    .explogxf
-    .exp2f_impl
     .exp10f_impl
-    libc.src.__support.builtin_wrappers
+    .exp2f_impl
+    .explogxf
+    libc.include.errno
+    libc.include.math
+    libc.src.__support.bit
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.optional
     libc.src.__support.FPUtil.fenv_impl
@@ -790,9 +792,7 @@ add_entrypoint_object(
     libc.src.__support.FPUtil.sqrt
     libc.src.__support.FPUtil.triple_double
     libc.src.__support.macros.optimization
-    libc.include.errno
     libc.src.errno.errno
-    libc.include.math
   COMPILE_OPTIONS
     -O3
 )
diff --git a/libc/src/math/generic/powf.cpp b/libc/src/math/generic/powf.cpp
index 891b09c69baed6..2de8e76b04b5ae 100644
--- a/libc/src/math/generic/powf.cpp
+++ b/libc/src/math/generic/powf.cpp
@@ -18,7 +18,7 @@
 #include "src/__support/FPUtil/nearest_integer.h"
 #include "src/__support/FPUtil/rounding_mode.h"
 #include "src/__support/FPUtil/sqrt.h" // Speedup for powf(x, 1/2) = sqrtf(x)
-#include "src/__support/builtin_wrappers.h"
+#include "src/__support/bit.h"
 #include "src/__support/common.h"
 #include "src/__support/macros/optimization.h" // LIBC_UNLIKELY
 
diff --git a/libc/test/src/__support/CMakeLists.txt b/libc/test/src/__support/CMakeLists.txt
index c899d9bd1fcd06..2920535fbaa56e 100644
--- a/libc/test/src/__support/CMakeLists.txt
+++ b/libc/test/src/__support/CMakeLists.txt
@@ -23,6 +23,29 @@ add_libc_test(
     libc.src.__support.common
 )
 
+
+add_libc_test(
+  bit_test
+  SUITE
+    libc-support-tests
+  SRCS
+    bit_test.cpp
+  DEPENDS
+    libc.src.__support.bit
+)
+
+
+add_libc_test(
+  math_extras_test
+  SUITE
+    libc-support-tests
+  SRCS
+    math_extras_test.cpp
+  DEPENDS
+    libc.src.__support.math_extras
+)
+
+
 add_libc_test(
   high_precision_decimal_test
   SUITE
diff --git a/libc/test/src/__support/bit_test.cpp b/libc/test/src/__support/bit_test.cpp
new file mode 100644
index 00000000000000..09d9c2f0a4ed88
--- /dev/null
+++ b/libc/test/src/__support/bit_test.cpp
@@ -0,0 +1,18 @@
+//===-- Unittests for BlockStore ------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/__support/bit.h"
+#include "test/UnitTest/Test.h"
+
+namespace LIBC_NAMESPACE {
+
+TEST(LlvmLibcBlockBitTest, TODO) {
+  // TODO Implement me.
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/test/src/__support/math_extras_test.cpp b/libc/test/src/__support/math_extras_test.cpp
new file mode 100644
index 00000000000000..48c8fe95c689a1
--- /dev/null
+++ b/libc/test/src/__support/math_extras_test.cpp
@@ -0,0 +1,18 @@
+//===-- Unittests for math_extras -----------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/__support/math_extras.h"
+#include "test/UnitTest/Test.h"
+
+namespace LIBC_NAMESPACE {
+
+TEST(LlvmLibcBlockMathExtrasTest, TODO) {
+  // TODO Implement me.
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
index 748bf160b4df41..4e1031fb38f5dc 100644
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -419,7 +419,7 @@ libc_support_library(
     name = "__support_integer_utils",
     hdrs = ["src/__support/integer_utils.h"],
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_common",
         ":__support_cpp_type_traits",
         ":__support_number_pair",
@@ -430,7 +430,7 @@ libc_support_library(
     name = "__support_uint",
     hdrs = ["src/__support/UInt.h"],
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_cpp_array",
         ":__support_cpp_limits",
         ":__support_cpp_optional",
@@ -438,6 +438,7 @@ libc_support_library(
         ":__support_integer_utils",
         ":__support_macros_attributes",
         ":__support_macros_optimization",
+        ":__support_math_extras",
         ":__support_number_pair",
     ],
 )
@@ -516,7 +517,7 @@ libc_support_library(
         "src/__support/str_to_float.h",
     ],
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_common",
         ":__support_cpp_limits",
         ":__support_cpp_optional",
@@ -572,8 +573,16 @@ libc_support_library(
 )
 
 libc_support_library(
-    name = "__support_builtin_wrappers",
-    hdrs = ["src/__support/builtin_wrappers.h"],
+    name = "__support_bit",
+    hdrs = ["src/__support/bit.h"],
+    deps = [
+        ":__support_macros_attributes",
+    ],
+)
+
+libc_support_library(
+    name = "__support_math_extras",
+    hdrs = ["src/__support/math_extras.h"],
     deps = [
         ":__support_cpp_type_traits",
         ":__support_macros_attributes",
@@ -586,7 +595,7 @@ libc_support_library(
     name = "__support_fputil_generic_fmod",
     hdrs = ["src/__support/FPUtil/generic/FMod.h"],
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_common",
         ":__support_cpp_limits",
         ":__support_cpp_type_traits",
@@ -658,7 +667,7 @@ libc_support_library(
     hdrs = ["src/__support/FPUtil/FPBits.h"],
     textual_hdrs = ["src/__support/FPUtil/x86_64/LongDoubleBits.h"],
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_common",
         ":__support_cpp_bit",
         ":__support_cpp_type_traits",
@@ -687,7 +696,7 @@ libc_support_library(
     name = "__support_fputil_hypot",
     hdrs = ["src/__support/FPUtil/Hypot.h"],
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_common",
         ":__support_cpp_bit",
         ":__support_cpp_type_traits",
@@ -766,7 +775,7 @@ libc_support_library(
     name = "__support_fputil_sqrt",
     hdrs = sqrt_hdrs,
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_common",
         ":__support_cpp_bit",
         ":__support_cpp_type_traits",
@@ -795,7 +804,7 @@ libc_support_library(
     # doesn't support FMA, so they can't be compiled on their own.
     textual_hdrs = fma_platform_hdrs,
     deps = [
-        ":__support_builtin_wrappers",
+        ":__support_bit",
         ":__support_cpp_bit",
         ":__support_cpp_type_traits",
         ":__support_fputil_fenv_impl",
diff --git a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
index 1abda0deb7d646..d93f089ac9ed35 100644
--- a/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
+++ b/utils/bazel/llvm-project-overlay/libc/libc_build_rules.bzl
@@ -145,7 +145,7 @@ def libc_math_function(
         ":__support_fputil_nearest_integer_operations",
         ":__support_fputil_normal_float",
         ":__support_fputil_platform_defs",
-        ":__support_builtin_wrappers",
+        ":__support_math_extras",
         ":__support_fputil_except_value_utils",
     ]
     libc_function(
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/__support/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/src/__support/BUILD.bazel
index b286eb70d8c7cb..23071c292b8272 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/__support/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/__support/BUILD.bazel
@@ -10,6 +10,18 @@ package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])
 
+libc_test(
+    name = "bit_test",
+    srcs = ["bit_test.cpp"],
+    deps = ["//libc:__support_bit"],
+)
+
+libc_test(
+    name = "math_extras_test",
+    srcs = ["math_extras_test.cpp"],
+    deps = ["//libc:__support_math_extras"],
+)
+
 # This test is currently disabled because of an issue in
 # `libc/src/__support/CPP/new.h` which currently fails with
 # "error: cannot apply asm label to function after its first use"
diff --git a/utils/bazel/llvm-project-overlay/libc/test/src/math/libc_math_test_rules.bzl b/utils/bazel/llvm-project-overlay/libc/test/src/math/libc_math_test_rules.bzl
index 2d759b5ec0f7c5..2843270d414a7d 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/src/math/libc_math_test_rules.bzl
+++ b/utils/bazel/llvm-project-overlay/libc/test/src/math/libc_math_test_rules.bzl
@@ -25,7 +25,7 @@ def math_test(name, hdrs = [], deps = [], **kwargs):
         srcs = [test_name + ".cpp"] + hdrs,
         libc_function_deps = ["//libc:func_name".replace("func_name", name)],
         deps = [
-            "//libc:__support_builtin_wrappers",
+            "//libc:__support_bit",
             "//libc:__support_fputil_basic_operations",
             "//libc:__support_fputil_fenv_impl",
             "//libc:__support_fputil_float_properties",
@@ -33,6 +33,7 @@ def math_test(name, hdrs = [], deps = [], **kwargs):
             "//libc:__support_fputil_manipulation_functions",
             "//libc:__support_fputil_nearest_integer_operations",
             "//libc:__support_fputil_normal_float",
+            "//libc:__support_math_extras",
             "//libc:__support_uint128",
             "//libc/test/UnitTest:fp_test_helpers",
         ] + deps,