diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -6,6 +6,12 @@
     blockstore.h
 )
 
+add_header_library(
+  builtin_wrappers
+  HDRS
+    builtin_wrappers.h
+)
+
 add_header_library(
   common
   HDRS
@@ -62,7 +68,7 @@
     libc.include.errno
     libc.src.__support.CPP.limits
     libc.src.__support.FPUtil.fp_bits
-    libc.src.__support.FPUtil.builtin_wrappers
+    libc.src.__support.builtin_wrappers
     libc.src.errno.errno
 )
 
diff --git a/libc/src/__support/FPUtil/CMakeLists.txt b/libc/src/__support/FPUtil/CMakeLists.txt
--- a/libc/src/__support/FPUtil/CMakeLists.txt
+++ b/libc/src/__support/FPUtil/CMakeLists.txt
@@ -1,9 +1,3 @@
-add_header_library(
-  builtin_wrappers
-  HDRS
-    builtin_wrappers.h
-)
-
 add_header_library(
   fenv_impl
   HDRS
@@ -37,7 +31,7 @@
   DEPENDS
     .platform_defs
     .float_properties
-    .builtin_wrappers
+    libc.src.__support.builtin_wrappers
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
     libc.src.__support.common
@@ -119,7 +113,7 @@
     .basic_operations
     .fenv_impl
     .fp_bits
-    .builtin_wrappers
+    libc.src.__support.builtin_wrappers
     libc.src.__support.CPP.bit
     libc.src.__support.CPP.type_traits
     libc.src.__support.uint128
diff --git a/libc/src/__support/FPUtil/FPBits.h b/libc/src/__support/FPUtil/FPBits.h
--- 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/FPUtil/builtin_wrappers.h"
+#include "src/__support/builtin_wrappers.h"
 #include "src/__support/common.h"
 
 #include "FloatProperties.h"
@@ -183,7 +183,7 @@
   inline static constexpr FPBits<T> make_value(UIntType number, int ep) {
     FPBits<T> result;
     // offset: +1 for sign, but -1 for implicit first bit
-    int lz = fputil::unsafe_clz(number) - FloatProp::EXPONENT_WIDTH;
+    int lz = unsafe_clz(number) - FloatProp::EXPONENT_WIDTH;
     number <<= lz;
     ep -= lz;
 
diff --git a/libc/src/__support/FPUtil/Hypot.h b/libc/src/__support/FPUtil/Hypot.h
--- a/libc/src/__support/FPUtil/Hypot.h
+++ b/libc/src/__support/FPUtil/Hypot.h
@@ -12,10 +12,10 @@
 #include "BasicOperations.h"
 #include "FEnvImpl.h"
 #include "FPBits.h"
-#include "builtin_wrappers.h"
 #include "src/__support/CPP/bit.h"
 #include "src/__support/CPP/type_traits.h"
 #include "src/__support/UInt128.h"
+#include "src/__support/builtin_wrappers.h"
 
 namespace __llvm_libc {
 namespace fputil {
diff --git a/libc/src/__support/FPUtil/generic/FMA.h b/libc/src/__support/FPUtil/generic/FMA.h
--- a/libc/src/__support/FPUtil/generic/FMA.h
+++ b/libc/src/__support/FPUtil/generic/FMA.h
@@ -13,8 +13,8 @@
 #include "src/__support/FPUtil/FEnvImpl.h"
 #include "src/__support/FPUtil/FPBits.h"
 #include "src/__support/FPUtil/FloatProperties.h"
-#include "src/__support/FPUtil/builtin_wrappers.h"
 #include "src/__support/UInt128.h"
+#include "src/__support/builtin_wrappers.h"
 #include "src/__support/common.h"
 
 namespace __llvm_libc {
diff --git a/libc/src/__support/FPUtil/generic/FMod.h b/libc/src/__support/FPUtil/generic/FMod.h
--- 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/FPUtil/builtin_wrappers.h"
+#include "src/__support/builtin_wrappers.h"
 #include "src/__support/common.h"
 #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
--- a/libc/src/__support/FPUtil/generic/sqrt.h
+++ b/libc/src/__support/FPUtil/generic/sqrt.h
@@ -15,8 +15,8 @@
 #include "src/__support/FPUtil/FEnvImpl.h"
 #include "src/__support/FPUtil/FPBits.h"
 #include "src/__support/FPUtil/PlatformDefs.h"
-#include "src/__support/FPUtil/builtin_wrappers.h"
 #include "src/__support/UInt128.h"
+#include "src/__support/builtin_wrappers.h"
 
 namespace __llvm_libc {
 namespace fputil {
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
--- a/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
+++ b/libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h
@@ -12,8 +12,8 @@
 #include "src/__support/FPUtil/FEnvImpl.h"
 #include "src/__support/FPUtil/FPBits.h"
 #include "src/__support/FPUtil/PlatformDefs.h"
-#include "src/__support/FPUtil/builtin_wrappers.h"
 #include "src/__support/UInt128.h"
+#include "src/__support/builtin_wrappers.h"
 
 namespace __llvm_libc {
 namespace fputil {
diff --git a/libc/src/__support/FPUtil/builtin_wrappers.h b/libc/src/__support/builtin_wrappers.h
rename from libc/src/__support/FPUtil/builtin_wrappers.h
rename to libc/src/__support/builtin_wrappers.h
--- a/libc/src/__support/FPUtil/builtin_wrappers.h
+++ b/libc/src/__support/builtin_wrappers.h
@@ -7,11 +7,10 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_LIBC_SRC_SUPPORT_FPUTIL_BUILTIN_WRAPPERS_H
-#define LLVM_LIBC_SRC_SUPPORT_FPUTIL_BUILTIN_WRAPPERS_H
+#ifndef LLVM_LIBC_SRC_SUPPORT_BUILTIN_WRAPPERS_H
+#define LLVM_LIBC_SRC_SUPPORT_BUILTIN_WRAPPERS_H
 
 namespace __llvm_libc {
-namespace fputil {
 
 // The following overloads are matched based on what is accepted by
 // __builtin_clz/ctz* rather than using the exactly-sized aliases from stdint.h.
@@ -65,7 +64,6 @@
   return __internal::clz(val);
 }
 
-} // namespace fputil
 } // namespace __llvm_libc
 
-#endif // LLVM_LIBC_SRC_SUPPORT_FPUTIL_BUILTIN_WRAPPERS_H
+#endif // LLVM_LIBC_SRC_SUPPORT_BUILTIN_WRAPPERS_H
diff --git a/libc/src/__support/str_to_float.h b/libc/src/__support/str_to_float.h
--- a/libc/src/__support/str_to_float.h
+++ b/libc/src/__support/str_to_float.h
@@ -11,8 +11,8 @@
 
 #include "src/__support/CPP/limits.h"
 #include "src/__support/FPUtil/FPBits.h"
-#include "src/__support/FPUtil/builtin_wrappers.h"
 #include "src/__support/UInt128.h"
+#include "src/__support/builtin_wrappers.h"
 #include "src/__support/ctype_utils.h"
 #include "src/__support/detailed_powers_of_ten.h"
 #include "src/__support/high_precision_decimal.h"
@@ -52,11 +52,11 @@
 }
 
 template <> uint32_t inline leading_zeroes<uint32_t>(uint32_t inputNumber) {
-  return fputil::safe_clz(inputNumber);
+  return safe_clz(inputNumber);
 }
 
 template <> uint32_t inline leading_zeroes<uint64_t>(uint64_t inputNumber) {
-  return fputil::safe_clz(inputNumber);
+  return safe_clz(inputNumber);
 }
 
 static inline uint64_t low64(const UInt128 &num) {
diff --git a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
--- a/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/BUILD.bazel
@@ -168,7 +168,7 @@
     "src/__support/FPUtil/NearestIntegerOperations.h",
     "src/__support/FPUtil/NormalFloat.h",
     "src/__support/FPUtil/PlatformDefs.h",
-    "src/__support/FPUtil/builtin_wrappers.h",
+    "src/__support/builtin_wrappers.h",
     "src/__support/FPUtil/except_value_utils.h",
 ]