[libc-commits] [libc] a985be6 - [libc][math][c++23] Add scalb{, l}nbf16 math functions (#155569)
via libc-commits
libc-commits at lists.llvm.org
Thu Aug 28 07:59:07 PDT 2025
Author: Krishna Pandey
Date: 2025-08-28T20:29:03+05:30
New Revision: a985be6fdfe3aa3453b351dcbc61453b6f78fab5
URL: https://github.com/llvm/llvm-project/commit/a985be6fdfe3aa3453b351dcbc61453b6f78fab5
DIFF: https://github.com/llvm/llvm-project/commit/a985be6fdfe3aa3453b351dcbc61453b6f78fab5.diff
LOG: [libc][math][c++23] Add scalb{,l}nbf16 math functions (#155569)
This PR adds the following basic math functions for BFloat16 type along
with the tests:
- scalbnbf16
- scalblnbf16
---------
Signed-off-by: Krishna Pandey <kpandey81930 at gmail.com>
Added:
libc/src/math/generic/scalblnbf16.cpp
libc/src/math/generic/scalbnbf16.cpp
libc/src/math/scalblnbf16.h
libc/src/math/scalbnbf16.h
libc/test/src/math/smoke/scalblnbf16_test.cpp
libc/test/src/math/smoke/scalbnbf16_test.cpp
Modified:
libc/config/baremetal/aarch64/entrypoints.txt
libc/config/baremetal/arm/entrypoints.txt
libc/config/baremetal/riscv/entrypoints.txt
libc/config/darwin/aarch64/entrypoints.txt
libc/config/darwin/x86_64/entrypoints.txt
libc/config/gpu/amdgpu/entrypoints.txt
libc/config/gpu/nvptx/entrypoints.txt
libc/config/linux/aarch64/entrypoints.txt
libc/config/linux/arm/entrypoints.txt
libc/config/linux/riscv/entrypoints.txt
libc/config/linux/x86_64/entrypoints.txt
libc/config/windows/entrypoints.txt
libc/docs/headers/math/index.rst
libc/src/math/CMakeLists.txt
libc/src/math/generic/CMakeLists.txt
libc/test/src/math/smoke/CMakeLists.txt
libc/test/src/math/smoke/TotalOrderMagTest.h
libc/test/src/math/smoke/TotalOrderTest.h
Removed:
################################################################################
diff --git a/libc/config/baremetal/aarch64/entrypoints.txt b/libc/config/baremetal/aarch64/entrypoints.txt
index ff3a6bfa8a2fc..637be4f19d5b7 100644
--- a/libc/config/baremetal/aarch64/entrypoints.txt
+++ b/libc/config/baremetal/aarch64/entrypoints.txt
@@ -814,6 +814,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/baremetal/arm/entrypoints.txt b/libc/config/baremetal/arm/entrypoints.txt
index f8916d71f86aa..19aedb0a8677d 100644
--- a/libc/config/baremetal/arm/entrypoints.txt
+++ b/libc/config/baremetal/arm/entrypoints.txt
@@ -817,6 +817,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/baremetal/riscv/entrypoints.txt b/libc/config/baremetal/riscv/entrypoints.txt
index 8a72fa6692869..cfbb598cbe4bf 100644
--- a/libc/config/baremetal/riscv/entrypoints.txt
+++ b/libc/config/baremetal/riscv/entrypoints.txt
@@ -817,6 +817,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/darwin/aarch64/entrypoints.txt b/libc/config/darwin/aarch64/entrypoints.txt
index 796c0d3c8a4ff..26e97d8993039 100644
--- a/libc/config/darwin/aarch64/entrypoints.txt
+++ b/libc/config/darwin/aarch64/entrypoints.txt
@@ -647,6 +647,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/darwin/x86_64/entrypoints.txt b/libc/config/darwin/x86_64/entrypoints.txt
index fa1d8def8936c..0556a6f7a4715 100644
--- a/libc/config/darwin/x86_64/entrypoints.txt
+++ b/libc/config/darwin/x86_64/entrypoints.txt
@@ -290,6 +290,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/gpu/amdgpu/entrypoints.txt b/libc/config/gpu/amdgpu/entrypoints.txt
index 49c41411cb5d2..8817972480aac 100644
--- a/libc/config/gpu/amdgpu/entrypoints.txt
+++ b/libc/config/gpu/amdgpu/entrypoints.txt
@@ -673,6 +673,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/gpu/nvptx/entrypoints.txt b/libc/config/gpu/nvptx/entrypoints.txt
index 06a2c9addb7fb..db762ed5c74d6 100644
--- a/libc/config/gpu/nvptx/entrypoints.txt
+++ b/libc/config/gpu/nvptx/entrypoints.txt
@@ -675,6 +675,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index feea7ff69c166..0a2ebfa3f8720 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -902,6 +902,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index 8e92fac863c6b..ea1c5c0558272 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -517,6 +517,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index fb08cfe7bd3f8..d5180b77c3af0 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -920,6 +920,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index 37af75454daa3..c64db2cc3548f 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -953,6 +953,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/config/windows/entrypoints.txt b/libc/config/windows/entrypoints.txt
index c09e6b259fa42..9f825bdf657e9 100644
--- a/libc/config/windows/entrypoints.txt
+++ b/libc/config/windows/entrypoints.txt
@@ -363,6 +363,8 @@ list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.rintbf16
libc.src.math.roundbf16
libc.src.math.roundevenbf16
+ libc.src.math.scalblnbf16
+ libc.src.math.scalbnbf16
libc.src.math.setpayloadbf16
libc.src.math.setpayloadsigbf16
libc.src.math.truncbf16
diff --git a/libc/docs/headers/math/index.rst b/libc/docs/headers/math/index.rst
index 89624460c3af5..a707b37894afc 100644
--- a/libc/docs/headers/math/index.rst
+++ b/libc/docs/headers/math/index.rst
@@ -233,9 +233,9 @@ Basic Operations
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+------------------------+----------------------------+
| roundeven | |check| | |check| | |check| | |check| | |check| | |check| | 7.12.9.8 | F.10.6.8 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+------------------------+----------------------------+
-| scalbln | |check| | |check| | |check| | |check| | |check| | | 7.12.6.19 | F.10.3.19 |
+| scalbln | |check| | |check| | |check| | |check| | |check| | |check| | 7.12.6.19 | F.10.3.19 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+------------------------+----------------------------+
-| scalbn | |check| | |check| | |check| | |check| | |check| | | 7.12.6.19 | F.10.3.19 |
+| scalbn | |check| | |check| | |check| | |check| | |check| | |check| | 7.12.6.19 | F.10.3.19 |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+------------------------+----------------------------+
| setpayload | |check| | |check| | |check| | |check| | |check| | |check| | F.10.13.2 | N/A |
+------------------+------------------+-----------------+------------------------+----------------------+------------------------+------------------------+------------------------+----------------------------+
diff --git a/libc/src/math/CMakeLists.txt b/libc/src/math/CMakeLists.txt
index 1edb517421e28..4b325f773b35f 100644
--- a/libc/src/math/CMakeLists.txt
+++ b/libc/src/math/CMakeLists.txt
@@ -518,12 +518,14 @@ add_math_entrypoint_object(scalblnf)
add_math_entrypoint_object(scalblnl)
add_math_entrypoint_object(scalblnf16)
add_math_entrypoint_object(scalblnf128)
+add_math_entrypoint_object(scalblnbf16)
add_math_entrypoint_object(scalbn)
add_math_entrypoint_object(scalbnf)
add_math_entrypoint_object(scalbnl)
add_math_entrypoint_object(scalbnf16)
add_math_entrypoint_object(scalbnf128)
+add_math_entrypoint_object(scalbnbf16)
add_math_entrypoint_object(setpayload)
add_math_entrypoint_object(setpayloadf)
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index 904f8d2eb4704..5e252c1cc2f26 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -4646,6 +4646,21 @@ add_entrypoint_object(
libc.src.__support.FPUtil.manipulation_functions
)
+add_entrypoint_object(
+ scalblnbf16
+ SRCS
+ scalblnbf16.cpp
+ HDRS
+ ../scalblnbf16.h
+ DEPENDS
+ libc.hdr.float_macros
+ libc.src.__support.common
+ libc.src.__support.macros.config
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
add_entrypoint_object(
scalbn
SRCS
@@ -4703,6 +4718,21 @@ add_entrypoint_object(
libc.src.__support.FPUtil.manipulation_functions
)
+add_entrypoint_object(
+ scalbnbf16
+ SRCS
+ scalbnbf16.cpp
+ HDRS
+ ../scalblnbf16.h
+ DEPENDS
+ libc.hdr.float_macros
+ libc.src.__support.common
+ libc.src.__support.macros.config
+ libc.src.__support.macros.properties.types
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.manipulation_functions
+)
+
add_entrypoint_object(
fmaf
SRCS
diff --git a/libc/src/math/generic/scalblnbf16.cpp b/libc/src/math/generic/scalblnbf16.cpp
new file mode 100644
index 0000000000000..f85f702660ed2
--- /dev/null
+++ b/libc/src/math/generic/scalblnbf16.cpp
@@ -0,0 +1,26 @@
+//===-- Implementation of scalblnbf16 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 "src/math/scalblnbf16.h"
+#include "hdr/float_macros.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+#if FLT_RADIX != 2
+#error "FLT_RADIX != 2 is not supported."
+#endif
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(bfloat16, scalblnbf16, (bfloat16 x, long n)) {
+ return fputil::ldexp(x, n);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/scalbnbf16.cpp b/libc/src/math/generic/scalbnbf16.cpp
new file mode 100644
index 0000000000000..108f9e7d4d057
--- /dev/null
+++ b/libc/src/math/generic/scalbnbf16.cpp
@@ -0,0 +1,26 @@
+//===-- Implementation of scalbnbf16 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 "src/math/scalbnbf16.h"
+#include "hdr/float_macros.h"
+#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/__support/common.h"
+#include "src/__support/macros/config.h"
+
+#if FLT_RADIX != 2
+#error "FLT_RADIX != 2 is not supported."
+#endif
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(bfloat16, scalbnbf16, (bfloat16 x, int n)) {
+ return fputil::ldexp(x, n);
+}
+
+} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/scalblnbf16.h b/libc/src/math/scalblnbf16.h
new file mode 100644
index 0000000000000..10aad05fc6b1f
--- /dev/null
+++ b/libc/src/math/scalblnbf16.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for scalblnbf16 -------------------*- 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_MATH_SCALBLNBF16_H
+#define LLVM_LIBC_SRC_MATH_SCALBLNBF16_H
+
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+bfloat16 scalblnbf16(bfloat16 x, long n);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_MATH_SCALBLNBF16_H
diff --git a/libc/src/math/scalbnbf16.h b/libc/src/math/scalbnbf16.h
new file mode 100644
index 0000000000000..67efa338fe630
--- /dev/null
+++ b/libc/src/math/scalbnbf16.h
@@ -0,0 +1,21 @@
+//===-- Implementation header for scalbnbf16 --------------------*- 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_MATH_SCALBNBF16_H
+#define LLVM_LIBC_SRC_MATH_SCALBNBF16_H
+
+#include "src/__support/macros/config.h"
+#include "src/__support/macros/properties/types.h"
+
+namespace LIBC_NAMESPACE_DECL {
+
+bfloat16 scalbnbf16(bfloat16 x, int n);
+
+} // namespace LIBC_NAMESPACE_DECL
+
+#endif // LLVM_LIBC_SRC_MATH_SCALBNBF16_H
diff --git a/libc/test/src/math/smoke/CMakeLists.txt b/libc/test/src/math/smoke/CMakeLists.txt
index 166802fd9f9cc..226ef2ee71866 100644
--- a/libc/test/src/math/smoke/CMakeLists.txt
+++ b/libc/test/src/math/smoke/CMakeLists.txt
@@ -4881,6 +4881,22 @@ add_fp_unittest(
libc.src.__support.FPUtil.normal_float
)
+add_fp_unittest(
+ scalblnbf16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ scalblnbf16_test.cpp
+ HDRS
+ ScalbnTest.h
+ DEPENDS
+ libc.src.math.scalblnbf16
+ libc.src.__support.CPP.limits
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.normal_float
+)
+
add_fp_unittest(
scalbn_test
SUITE
@@ -4956,6 +4972,22 @@ add_fp_unittest(
libc.src.__support.FPUtil.normal_float
)
+add_fp_unittest(
+ scalbnbf16_test
+ SUITE
+ libc-math-smoke-tests
+ SRCS
+ scalbnbf16_test.cpp
+ HDRS
+ ScalbnTest.h
+ DEPENDS
+ libc.src.math.scalbnbf16
+ libc.src.__support.CPP.limits
+ libc.src.__support.FPUtil.bfloat16
+ libc.src.__support.FPUtil.fp_bits
+ libc.src.__support.FPUtil.normal_float
+)
+
add_fp_unittest(
erff_test
SUITE
diff --git a/libc/test/src/math/smoke/TotalOrderMagTest.h b/libc/test/src/math/smoke/TotalOrderMagTest.h
index b5c26bb4bcd37..32f3932cb3f6d 100644
--- a/libc/test/src/math/smoke/TotalOrderMagTest.h
+++ b/libc/test/src/math/smoke/TotalOrderMagTest.h
@@ -107,6 +107,11 @@ class TotalOrderMagTestTemplate : public LIBC_NAMESPACE::testing::FEnvSafeTest {
void testNaNPayloads(TotalOrderMagFunc func) {
+ T qnan_0x15 = FPBits::quiet_nan(Sign::POS, 0x15).get_val();
+ T neg_qnan_0x15 = FPBits::quiet_nan(Sign::NEG, 0x15).get_val();
+ T snan_0x15 = FPBits::signaling_nan(Sign::POS, 0x15).get_val();
+ T neg_snan_0x15 = FPBits::signaling_nan(Sign::NEG, 0x15).get_val();
+
EXPECT_TRUE(funcWrapper(func, aNaN, aNaN));
EXPECT_TRUE(funcWrapper(func, sNaN, sNaN));
diff --git a/libc/test/src/math/smoke/TotalOrderTest.h b/libc/test/src/math/smoke/TotalOrderTest.h
index 4281a9a0b987d..febed0157a6b2 100644
--- a/libc/test/src/math/smoke/TotalOrderTest.h
+++ b/libc/test/src/math/smoke/TotalOrderTest.h
@@ -105,6 +105,11 @@ class TotalOrderTestTemplate : public LIBC_NAMESPACE::testing::FEnvSafeTest {
void testNaNPayloads(TotalOrderFunc func) {
+ T qnan_0x15 = FPBits::quiet_nan(Sign::POS, 0x15).get_val();
+ T neg_qnan_0x15 = FPBits::quiet_nan(Sign::NEG, 0x15).get_val();
+ T snan_0x15 = FPBits::signaling_nan(Sign::POS, 0x15).get_val();
+ T neg_snan_0x15 = FPBits::signaling_nan(Sign::NEG, 0x15).get_val();
+
EXPECT_TRUE(funcWrapper(func, aNaN, aNaN));
EXPECT_TRUE(funcWrapper(func, sNaN, sNaN));
diff --git a/libc/test/src/math/smoke/scalblnbf16_test.cpp b/libc/test/src/math/smoke/scalblnbf16_test.cpp
new file mode 100644
index 0000000000000..c6fc3aac5e744
--- /dev/null
+++ b/libc/test/src/math/smoke/scalblnbf16_test.cpp
@@ -0,0 +1,14 @@
+//===-- Unittests for scalblnbf16 -----------------------------------------===//
+//
+// 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 "ScalbnTest.h"
+
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/math/scalblnbf16.h"
+
+LIST_SCALBN_TESTS(bfloat16, long, LIBC_NAMESPACE::scalblnbf16)
diff --git a/libc/test/src/math/smoke/scalbnbf16_test.cpp b/libc/test/src/math/smoke/scalbnbf16_test.cpp
new file mode 100644
index 0000000000000..855fd75e6e8f9
--- /dev/null
+++ b/libc/test/src/math/smoke/scalbnbf16_test.cpp
@@ -0,0 +1,14 @@
+//===-- Unittests for scalbnbf16 ------------------------------------------===//
+//
+// 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 "ScalbnTest.h"
+
+#include "src/__support/FPUtil/bfloat16.h"
+#include "src/math/scalbnbf16.h"
+
+LIST_SCALBN_TESTS(bfloat16, int, LIBC_NAMESPACE::scalbnbf16)
More information about the libc-commits
mailing list