diff --git a/libc/src/stdfix/kbits.h b/libc/src/stdfix/kbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for kbits -------------------------*- C++ -*-===//
+//
+// 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_STDFIX_KBITS_H
+#define LLVM_LIBC_SRC_STDFIX_KBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+accum kbits(int_k_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_KBITS_H
diff --git a/libc/src/stdfix/lkbits.cpp b/libc/src/stdfix/lkbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of lkbits function ---------------------------------===//
+//
+// 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 "lkbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(long accum, lkbits, (int_lk_t x)) {
+  return cpp::bit_cast<long accum, int_lk_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/lkbits.h b/libc/src/stdfix/lkbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for lkbits ------------------------*- C++ -*-===//
+//
+// 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_STDFIX_LKBITS_H
+#define LLVM_LIBC_SRC_STDFIX_LKBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+long accum lkbits(int_lk_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_LKBITS_H
diff --git a/libc/src/stdfix/lrbits.cpp b/libc/src/stdfix/lrbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of lrbits function ---------------------------------===//
+//
+// 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 "lrbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(long fract, lrbits, (int_lr_t x)) {
+  return cpp::bit_cast<long fract, int_lr_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/lrbits.h b/libc/src/stdfix/lrbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for lrbits ------------------------*- C++ -*-===//
+//
+// 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_STDFIX_LRBITS_H
+#define LLVM_LIBC_SRC_STDFIX_LRBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+long fract lrbits(int_lr_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_LRBITS_H
diff --git a/libc/src/stdfix/rbits.cpp b/libc/src/stdfix/rbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of rbits function ----------------------------------===//
+//
+// 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 "rbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(fract, rbits, (int_r_t x)) {
+  return cpp::bit_cast<fract, int_r_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/rbits.h b/libc/src/stdfix/rbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for rbits -------------------------*- C++ -*-===//
+//
+// 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_STDFIX_RBITS_H
+#define LLVM_LIBC_SRC_STDFIX_RBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+fract rbits(int_r_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_RBITS_H
diff --git a/libc/src/stdfix/uhkbits.cpp b/libc/src/stdfix/uhkbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of uhkbits function --------------------------------===//
+//
+// 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 "uhkbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(unsigned short accum, uhkbits, (uint_uhk_t x)) {
+  return cpp::bit_cast<unsigned short accum, uint_uhk_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/uhkbits.h b/libc/src/stdfix/uhkbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for uhkbits -----------------------*- C++ -*-===//
+//
+// 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_STDFIX_UHKBITS_H
+#define LLVM_LIBC_SRC_STDFIX_UHKBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+unsigned short accum uhkbits(uint_uhk_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_UHKBITS_H
diff --git a/libc/src/stdfix/uhrbits.cpp b/libc/src/stdfix/uhrbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of uhrbits function --------------------------------===//
+//
+// 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 "uhrbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(unsigned short fract, uhrbits, (uint_uhr_t x)) {
+  return cpp::bit_cast<unsigned short fract, uint_uhr_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/uhrbits.h b/libc/src/stdfix/uhrbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for uhrbits -----------------------*- C++ -*-===//
+//
+// 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_STDFIX_UHRBITS_H
+#define LLVM_LIBC_SRC_STDFIX_UHRBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+unsigned short fract uhrbits(uint_uhr_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_UHRBITS_H
diff --git a/libc/src/stdfix/ukbits.cpp b/libc/src/stdfix/ukbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of ukbits function ---------------------------------===//
+//
+// 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 "ukbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(unsigned accum, ukbits, (uint_uk_t x)) {
+  return cpp::bit_cast<unsigned accum, uint_uk_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/ukbits.h b/libc/src/stdfix/ukbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for ukbits ------------------------*- C++ -*-===//
+//
+// 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_STDFIX_UKBITS_H
+#define LLVM_LIBC_SRC_STDFIX_UKBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+unsigned accum ukbits(uint_uk_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_UKBITS_H
diff --git a/libc/src/stdfix/ulkbits.cpp b/libc/src/stdfix/ulkbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of ulkbits function --------------------------------===//
+//
+// 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 "ulkbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(unsigned long accum, ulkbits, (uint_ulk_t x)) {
+  return cpp::bit_cast<unsigned long accum, uint_ulk_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/ulkbits.h b/libc/src/stdfix/ulkbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for ulkbits -----------------------*- C++ -*-===//
+//
+// 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_STDFIX_ULKBITS_H
+#define LLVM_LIBC_SRC_STDFIX_ULKBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+unsigned long accum ulkbits(uint_ulk_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_ULKBITS_H
diff --git a/libc/src/stdfix/ulrbits.cpp b/libc/src/stdfix/ulrbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of ulrbits function --------------------------------===//
+//
+// 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 "ulrbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(unsigned long fract, ulrbits, (uint_ulr_t x)) {
+  return cpp::bit_cast<unsigned long fract, uint_ulr_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/ulrbits.h b/libc/src/stdfix/ulrbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for ulrbits -----------------------*- C++ -*-===//
+//
+// 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_STDFIX_ULRBITS_H
+#define LLVM_LIBC_SRC_STDFIX_ULRBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+unsigned long fract ulrbits(uint_ulr_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_ULRBITS_H
diff --git a/libc/src/stdfix/urbits.cpp b/libc/src/stdfix/urbits.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of urbits function ---------------------------------===//
+//
+// 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 "urbits.h"
+#include "src/__support/common.h"
+#include "src/__support/fixed_point/fx_bits.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+LLVM_LIBC_FUNCTION(unsigned fract, urbits, (uint_ur_t x)) {
+  return cpp::bit_cast<unsigned fract, uint_ur_t>(x);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/stdfix/urbits.h b/libc/src/stdfix/urbits.h
@@ -0,0 +1,22 @@
+//===-- Implementation header for urbits ------------------------*- C++ -*-===//
+//
+// 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_STDFIX_URBITS_H
+#define LLVM_LIBC_SRC_STDFIX_URBITS_H
+
+#include "include/llvm-libc-macros/stdfix-macros.h"
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/macros/config.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+unsigned fract urbits(uint_ur_t x);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_STDFIX_URBITS_H
diff --git a/libc/test/src/stdfix/CMakeLists.txt b/libc/test/src/stdfix/CMakeLists.txt
@@ -57,6 +57,22 @@ foreach(suffix IN ITEMS hr r lr hk k lk uhr ur ulr uhk uk ulk)
       libc.src.stdfix.round${suffix}
       libc.src.__support.fixed_point.fx_bits
   )
+
+  add_libc_test(
+    ${suffix}bits_test
+    SUITE
+      libc-stdfix-tests
+    HDRS
+      FxBitsTest.h
+    SRCS
+      ${suffix}bits_test.cpp
+    COMPILE_OPTIONS
+      -O3
+    DEPENDS
+      libc.src.stdfix.${suffix}bits
+      libc.src.__support.CPP.bit
+      libc.src.__support.fixed_point.fx_bits
+  )
 endforeach()
 
 add_libc_test(

diff --git a/libc/test/src/stdfix/FxBitsTest.h b/libc/test/src/stdfix/FxBitsTest.h
@@ -0,0 +1,55 @@
+//===-- Utility class to test int to fixed point conversions ----*- C++ -*-===//
+//
+// 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 "test/UnitTest/Test.h"
+
+#include "include/llvm-libc-types/stdfix-types.h"
+#include "src/__support/CPP/bit.h"
+#include "src/__support/fixed_point/fx_bits.h"
+
+template <typename T, typename XType>
+class FxBitsTest : public LIBC_NAMESPACE::testing::Test {
+  using FXRep = LIBC_NAMESPACE::fixed_point::FXRep<T>;
+  static constexpr T zero = FXRep::ZERO();
+  static constexpr T min = FXRep::MIN();
+  static constexpr T max = FXRep::MAX();
+  static constexpr T half = static_cast<T>(0.5);
+  static constexpr T quarter = static_cast<T>(0.25);
+  static constexpr T one =
+      (FXRep::INTEGRAL_LEN > 0) ? static_cast<T>(1) : FXRep::MAX();
+  static constexpr T eps = FXRep::EPS();
+  constexpr XType get_one_or_saturated_fraction() {
+    if (FXRep::INTEGRAL_LEN > 0) {
+      return static_cast<XType>(static_cast<XType>(0x1) << FXRep::FRACTION_LEN);
+    } else {
+      return static_cast<XType>(
+          LIBC_NAMESPACE::mask_trailing_ones<typename FXRep::StorageType,
+                                             FXRep::FRACTION_LEN>());
+    }
+  }
+
+public:
+  typedef T (*FxBitsFunc)(XType);
+
+  void test_special_numbers(FxBitsFunc func) {
+    EXPECT_EQ(zero, func(0));
+    EXPECT_EQ(eps, func(0x1));
+    // x.1000...
+    EXPECT_EQ(half, func(static_cast<XType>(0x1) << (FXRep::FRACTION_LEN - 1)));
+    // Occupy the bit to the left of the fixed point for Accum types
+    // Saturate fraction portion for Fract types
+    EXPECT_EQ(one, func(get_one_or_saturated_fraction()));
+  }
+};
+
+#define LIST_FXBITS_TEST(Name, T, XType, func)                                 \
+  using LlvmLibc##Name##BitsTest = FxBitsTest<T, XType>;                       \
+  TEST_F(LlvmLibc##Name##BitsTest, SpecialNumbers) {                           \
+    test_special_numbers(&func);                                               \
+  }                                                                            \
+  static_assert(true, "Require semicolon.")
diff --git a/libc/test/src/stdfix/hkbits_test.cpp b/libc/test/src/stdfix/hkbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for hkbits ----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/hkbits.h"
+
+LIST_FXBITS_TEST(hk, short accum, int_hk_t, LIBC_NAMESPACE::hkbits);
diff --git a/libc/test/src/stdfix/hrbits_test.cpp b/libc/test/src/stdfix/hrbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for hrbits ----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/hrbits.h"
+
+LIST_FXBITS_TEST(hr, short fract, int_hr_t, LIBC_NAMESPACE::hrbits);
diff --git a/libc/test/src/stdfix/kbits_test.cpp b/libc/test/src/stdfix/kbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for kbits -----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/kbits.h"
+
+LIST_FXBITS_TEST(k, accum, int_k_t, LIBC_NAMESPACE::kbits);
diff --git a/libc/test/src/stdfix/lkbits_test.cpp b/libc/test/src/stdfix/lkbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for lkbits ----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/lkbits.h"
+
+LIST_FXBITS_TEST(lk, long accum, int_lk_t, LIBC_NAMESPACE::lkbits);
diff --git a/libc/test/src/stdfix/lrbits_test.cpp b/libc/test/src/stdfix/lrbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for lrbits ----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/lrbits.h"
+
+LIST_FXBITS_TEST(lr, long fract, int_lr_t, LIBC_NAMESPACE::lrbits);
diff --git a/libc/test/src/stdfix/rbits_test.cpp b/libc/test/src/stdfix/rbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for rbits -----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/rbits.h"
+
+LIST_FXBITS_TEST(r, fract, int_r_t, LIBC_NAMESPACE::rbits);
diff --git a/libc/test/src/stdfix/uhkbits_test.cpp b/libc/test/src/stdfix/uhkbits_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for uhkbits ---------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/uhkbits.h"
+
+LIST_FXBITS_TEST(uhk, unsigned short accum, uint_uhk_t,
+                 LIBC_NAMESPACE::uhkbits);
diff --git a/libc/test/src/stdfix/uhrbits_test.cpp b/libc/test/src/stdfix/uhrbits_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for uhrbits ---------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/uhrbits.h"
+
+LIST_FXBITS_TEST(uhr, unsigned short fract, uint_uhr_t,
+                 LIBC_NAMESPACE::uhrbits);
diff --git a/libc/test/src/stdfix/ukbits_test.cpp b/libc/test/src/stdfix/ukbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for ukbits ----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/ukbits.h"
+
+LIST_FXBITS_TEST(uk, unsigned accum, uint_uk_t, LIBC_NAMESPACE::ukbits);
diff --git a/libc/test/src/stdfix/ulkbits_test.cpp b/libc/test/src/stdfix/ulkbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for ulkbits ---------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/ulkbits.h"
+
+LIST_FXBITS_TEST(ulk, unsigned long accum, uint_ulk_t, LIBC_NAMESPACE::ulkbits);
diff --git a/libc/test/src/stdfix/ulrbits_test.cpp b/libc/test/src/stdfix/ulrbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for ulrbits ---------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/ulrbits.h"
+
+LIST_FXBITS_TEST(ulr, unsigned long fract, uint_ulr_t, LIBC_NAMESPACE::ulrbits);
diff --git a/libc/test/src/stdfix/urbits_test.cpp b/libc/test/src/stdfix/urbits_test.cpp
@@ -0,0 +1,12 @@
+//===-- Unittests for urbits ----------------------------------------------===//
+//
+// 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 "FxBitsTest.h"
+#include "src/stdfix/urbits.h"
+
+LIST_FXBITS_TEST(ur, unsigned fract, uint_ur_t, LIBC_NAMESPACE::urbits);