[libc-commits] [libc] [libc][math][c23] fmul correcly rounded to all rounding modes (PR #91537)

Job Henandez Lara via libc-commits libc-commits at lists.llvm.org
Wed May 8 14:32:03 PDT 2024


https://github.com/Jobhdez created https://github.com/llvm/llvm-project/pull/91537

Hello, after a conversation with Tue, he suggested to setup all the config. I will start working on the correct implementation asap.

I built llvm and ran the test so the config works.

Thanks

>From 9f16ac2f1d4b31aa0af88300dd70738fa8b95b44 Mon Sep 17 00:00:00 2001
From: Job Hernandez <hj93 at protonmail.com>
Date: Wed, 8 May 2024 14:27:15 -0700
Subject: [PATCH 1/2] start fmul template

---
 libc/config/linux/aarch64/entrypoints.txt   |  3 ++
 libc/config/linux/arm/entrypoints.txt       |  3 ++
 libc/config/linux/riscv/entrypoints.txt     |  3 ++
 libc/config/linux/x86_64/entrypoints.txt    |  3 ++
 libc/config/windows/entrypoints.txt         |  3 ++
 libc/spec/stdc.td                           |  5 +++
 libc/src/__support/FPUtil/BasicOperations.h | 12 +++++++
 libc/src/math/CMakeLists.txt                |  4 +++
 libc/src/math/dmull.h                       | 18 ++++++++++
 libc/src/math/fmul.h                        | 18 ++++++++++
 libc/src/math/fmull.h                       | 18 ++++++++++
 libc/src/math/generic/CMakeLists.txt        | 36 +++++++++++++++++++
 libc/src/math/generic/dmull.cpp             | 19 ++++++++++
 libc/src/math/generic/fmul.cpp              | 19 ++++++++++
 libc/src/math/generic/fmull.cpp             | 19 ++++++++++
 libc/test/src/math/smoke/CMakeLists.txt     | 40 ++++++++++++++++++++-
 libc/test/src/math/smoke/FMulTest.h         | 32 +++++++++++++++++
 libc/test/src/math/smoke/dmull_test.cpp     | 13 +++++++
 libc/test/src/math/smoke/fmul_test.cpp      | 13 +++++++
 libc/test/src/math/smoke/fmull_test.cpp     | 13 +++++++
 20 files changed, 293 insertions(+), 1 deletion(-)
 create mode 100644 libc/src/math/dmull.h
 create mode 100644 libc/src/math/fmul.h
 create mode 100644 libc/src/math/fmull.h
 create mode 100644 libc/src/math/generic/dmull.cpp
 create mode 100644 libc/src/math/generic/fmul.cpp
 create mode 100644 libc/src/math/generic/fmull.cpp
 create mode 100644 libc/test/src/math/smoke/FMulTest.h
 create mode 100644 libc/test/src/math/smoke/dmull_test.cpp
 create mode 100644 libc/test/src/math/smoke/fmul_test.cpp
 create mode 100644 libc/test/src/math/smoke/fmull_test.cpp

diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index ad50b6f59cdcc..c92d238f14f7d 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -394,6 +394,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.fminimum_mag_num
     libc.src.math.fminimum_mag_numf
     libc.src.math.fminimum_mag_numl
+    libc.src.math.fmul
+    libc.src.math.fmull
+    libc.src.math.dmull
     libc.src.math.fmod
     libc.src.math.fmodf
     libc.src.math.fmodl
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index 335981ff7dc7c..c3bb9bf666764 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -261,6 +261,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.fminimum_mag_num
     libc.src.math.fminimum_mag_numf
     libc.src.math.fminimum_mag_numl
+    libc.src.math.fmul
+    libc.src.math.fmull
+    libc.src.math.dmull
     libc.src.math.fmod
     libc.src.math.fmodf
     libc.src.math.frexp
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index 479af40b5b26b..8b4744445ae01 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -402,6 +402,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.fminimum_mag_num
     libc.src.math.fminimum_mag_numf
     libc.src.math.fminimum_mag_numl
+    libc.src.math.fmul
+    libc.src.math.fmull
+    libc.src.math.dmull
     libc.src.math.fmod
     libc.src.math.fmodf
     libc.src.math.fmodl
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index 5e3ddd34fb4dc..9623f0b967c40 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -421,6 +421,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.fminimum_mag_num
     libc.src.math.fminimum_mag_numf
     libc.src.math.fminimum_mag_numl
+    libc.src.math.fmul
+    libc.src.math.fmull
+    libc.src.math.dmull
     libc.src.math.fmod
     libc.src.math.fmodf
     libc.src.math.fmodl
diff --git a/libc/config/windows/entrypoints.txt b/libc/config/windows/entrypoints.txt
index 71216530c4041..199ce9bc91cd9 100644
--- a/libc/config/windows/entrypoints.txt
+++ b/libc/config/windows/entrypoints.txt
@@ -180,6 +180,9 @@ set(TARGET_LIBM_ENTRYPOINTS
     libc.src.math.fminimum_mag_num
     libc.src.math.fminimum_mag_numf
     libc.src.math.fminimum_mag_numl
+    libc.src.math.fmul
+    libc.src.math.fmull
+    libc.src.math.dmull
     libc.src.math.fmod
     libc.src.math.fmodf
     libc.src.math.fmodl
diff --git a/libc/spec/stdc.td b/libc/spec/stdc.td
index eb67c9b0b009b..0130ace283a55 100644
--- a/libc/spec/stdc.td
+++ b/libc/spec/stdc.td
@@ -457,6 +457,11 @@ def StdC : StandardSpec<"stdc"> {
           FunctionSpec<"fminimum_mag_numl", RetValSpec<LongDoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>]>,
           GuardedFunctionSpec<"fminimum_mag_numf128", RetValSpec<Float128Type>, [ArgSpec<Float128Type>, ArgSpec<Float128Type>], "LIBC_TYPES_HAS_FLOAT128">,
 
+          FunctionSpec<"fmul", RetValSpec<FloatType>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>]>,
+	  FunctionSpec<"fmull", RetValSpec<FloatType>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>]>,
+	  FunctionSpec<"dmull", RetValSpec<DoubleType>, [ArgSpec<LongDoubleType>, ArgSpec<LongDoubleType>]>,
+	    
+
           FunctionSpec<"fma", RetValSpec<DoubleType>, [ArgSpec<DoubleType>, ArgSpec<DoubleType>, ArgSpec<DoubleType>]>,
           FunctionSpec<"fmaf", RetValSpec<FloatType>, [ArgSpec<FloatType>, ArgSpec<FloatType>, ArgSpec<FloatType>]>,
 
diff --git a/libc/src/__support/FPUtil/BasicOperations.h b/libc/src/__support/FPUtil/BasicOperations.h
index e5ac101fedc0e..e75b4b9391bb8 100644
--- a/libc/src/__support/FPUtil/BasicOperations.h
+++ b/libc/src/__support/FPUtil/BasicOperations.h
@@ -176,6 +176,18 @@ LIBC_INLINE T fdim(T x, T y) {
 
   return (x > y ? x - y : 0);
 }
+  
+LIBC_INLINE float fmul(double x, double y) {
+  return static_cast<float>(x * y);
+}
+
+LIBC_INLINE float fmull(long double x, long double y) {
+  return static_cast<float>(x * y);
+}
+
+LIBC_INLINE double dmull(long double x, long double y) {
+  return static_cast<double>(x * y);
+}
 
 template <typename T, cpp::enable_if_t<cpp::is_floating_point_v<T>, int> = 0>
 LIBC_INLINE int canonicalize(T &cx, const T &x) {
diff --git a/libc/src/math/CMakeLists.txt b/libc/src/math/CMakeLists.txt
index c34c58575441d..dd26109d9db4d 100644
--- a/libc/src/math/CMakeLists.txt
+++ b/libc/src/math/CMakeLists.txt
@@ -164,6 +164,10 @@ add_math_entrypoint_object(fminimum_mag_numf)
 add_math_entrypoint_object(fminimum_mag_numl)
 add_math_entrypoint_object(fminimum_mag_numf128)
 
+add_math_entrypoint_object(fmul)
+add_math_entrypoint_object(fmull)
+add_math_entrypoint_object(dmull)
+
 add_math_entrypoint_object(fmod)
 add_math_entrypoint_object(fmodf)
 add_math_entrypoint_object(fmodl)
diff --git a/libc/src/math/dmull.h b/libc/src/math/dmull.h
new file mode 100644
index 0000000000000..556eb1559d535
--- /dev/null
+++ b/libc/src/math/dmull.h
@@ -0,0 +1,18 @@
+//===-- Implementation header for dmull -------------------------*- 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_DMULL_H
+#define LLVM_LIBC_SRC_MATH_DMULL_H
+
+namespace LIBC_NAMESPACE {
+
+double dmull(long double x, long double y);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_DMULL_H
diff --git a/libc/src/math/fmul.h b/libc/src/math/fmul.h
new file mode 100644
index 0000000000000..fbc1069db733e
--- /dev/null
+++ b/libc/src/math/fmul.h
@@ -0,0 +1,18 @@
+//===-- Implementation header for fmul --------------------------*- 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_FMUL_H
+#define LLVM_LIBC_SRC_MATH_FMUL_H
+
+namespace LIBC_NAMESPACE {
+
+float fmul(double x, double y);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_FMUL_H
diff --git a/libc/src/math/fmull.h b/libc/src/math/fmull.h
new file mode 100644
index 0000000000000..aebf52a9b0c0a
--- /dev/null
+++ b/libc/src/math/fmull.h
@@ -0,0 +1,18 @@
+//===-- Implementation header for fmull -------------------------*- 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_FMULL_H
+#define LLVM_LIBC_SRC_MATH_FMULL_H
+
+namespace LIBC_NAMESPACE {
+
+float fmull(long double x, long double y);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_MATH_FMULL_H
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index daaf505008ca1..3554ec088c49f 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -2042,6 +2042,42 @@ add_entrypoint_object(
     -O3
 )
 
+add_entrypoint_object(
+  fmul
+  SRCS
+    fmul.cpp
+  HDRS
+    ../fmul.h
+  DEPENDS
+    libc.src.__support.FPUtil.basic_operations
+  COMPILE_OPTIONS
+    -O2
+)
+
+add_entrypoint_object(
+  fmull
+  SRCS
+    fmull.cpp
+  HDRS
+    ../fmull.h
+  DEPENDS
+    libc.src.__support.FPUtil.basic_operations
+  COMPILE_OPTIONS
+    -O2
+)
+
+add_entrypoint_object(
+  dmull
+  SRCS
+    dmull.cpp
+  HDRS
+    ../dmull.h
+  DEPENDS
+    libc.src.__support.FPUtil.basic_operations
+  COMPILE_OPTIONS
+    -O2
+)
+
 add_entrypoint_object(
   sqrt
   SRCS
diff --git a/libc/src/math/generic/dmull.cpp b/libc/src/math/generic/dmull.cpp
new file mode 100644
index 0000000000000..2c70841dc2d28
--- /dev/null
+++ b/libc/src/math/generic/dmull.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of dmull 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/dmull.h"
+#include "src/__support/FPUtil/BasicOperations.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(double, dmull, (long double x, long double y)) {
+  return fputil::dmull(x, y);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/fmul.cpp b/libc/src/math/generic/fmul.cpp
new file mode 100644
index 0000000000000..77452013951d7
--- /dev/null
+++ b/libc/src/math/generic/fmul.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of fmul 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/fmul.h"
+#include "src/__support/FPUtil/BasicOperations.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float, fmul, (double x, double y)) {
+  return fputil::fmul(x, y);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/math/generic/fmull.cpp b/libc/src/math/generic/fmull.cpp
new file mode 100644
index 0000000000000..f0d0e0d8da22a
--- /dev/null
+++ b/libc/src/math/generic/fmull.cpp
@@ -0,0 +1,19 @@
+//===-- Implementation of fmull 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/fmull.h"
+#include "src/__support/FPUtil/BasicOperations.h"
+#include "src/__support/common.h"
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(float, fmull, (long double x, long double y)) {
+  return fputil::fmull(x, y);
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/test/src/math/smoke/CMakeLists.txt b/libc/test/src/math/smoke/CMakeLists.txt
index 112b2985829ca..30e6a3cb98184 100644
--- a/libc/test/src/math/smoke/CMakeLists.txt
+++ b/libc/test/src/math/smoke/CMakeLists.txt
@@ -1911,7 +1911,6 @@ add_fp_unittest(
     libc.src.__support.FPUtil.fp_bits
 )
 
-
 add_fp_unittest(
   fminimum_mag_numf_test
   SUITE
@@ -1964,6 +1963,45 @@ add_fp_unittest(
     libc.src.__support.FPUtil.fp_bits
 )
 
+add_fp_unittest(
+  fmul_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    fmul_test.cpp
+  HDRS
+    FMulTest.h
+  DEPENDS
+    libc.src.math.fmul
+    libc.src.__support.FPUtil.fp_bits
+)
+
+add_fp_unittest(
+  fmull_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    fmull_test.cpp
+  HDRS
+    FMulTest.h
+  DEPENDS
+    libc.src.math.fmull
+    libc.src.__support.FPUtil.fp_bits
+)
+
+add_fp_unittest(
+  dmull_test
+  SUITE
+    libc-math-smoke-tests
+  SRCS
+    dmull_test.cpp
+  HDRS
+    FMulTest.h
+  DEPENDS
+    libc.src.math.dmull
+    libc.src.__support.FPUtil.fp_bits
+)
+
 add_fp_unittest(
   sqrtf_test
   SUITE
diff --git a/libc/test/src/math/smoke/FMulTest.h b/libc/test/src/math/smoke/FMulTest.h
new file mode 100644
index 0000000000000..d217dc369ef81
--- /dev/null
+++ b/libc/test/src/math/smoke/FMulTest.h
@@ -0,0 +1,32 @@
+//===-- Utility class to test fmul[f|l] ---------------------*- 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_TEST_SRC_MATH_SMOKE_FMULTEST_H
+#define LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMULTEST_H
+
+#include "test/UnitTest/FEnvSafeTest.h"
+#include "test/UnitTest/FPMatcher.h"
+#include "test/UnitTest/Test.h"
+
+template <typename T, typename R>
+class FmulTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
+
+public:
+  typedef T (*FMulFunc)(R, R);
+
+  void testMul(FMulFunc func) {
+    EXPECT_FP_EQ(T(1.0), func(1.0, 1.0));
+  }
+  
+};
+
+#define LIST_FMUL_TESTS(T, R, func)				       \
+  using LlvmLibcFmulTest = FmulTest<T,R>;                                \
+  TEST_F(LlvmLibcFmulTest, Mul) { testMul(&func); }                
+
+#endif // LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMULTEST_H
diff --git a/libc/test/src/math/smoke/dmull_test.cpp b/libc/test/src/math/smoke/dmull_test.cpp
new file mode 100644
index 0000000000000..f094b2578158f
--- /dev/null
+++ b/libc/test/src/math/smoke/dmull_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for dmull------------------------------------------------===//
+//
+// 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 "FMulTest.h"
+
+#include "src/math/dmull.h"
+
+LIST_FMUL_TESTS(double, long double, LIBC_NAMESPACE::dmull)
diff --git a/libc/test/src/math/smoke/fmul_test.cpp b/libc/test/src/math/smoke/fmul_test.cpp
new file mode 100644
index 0000000000000..0eb664f7411ee
--- /dev/null
+++ b/libc/test/src/math/smoke/fmul_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for fmul-------------------------------------------------===//
+//
+// 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 "FMulTest.h"
+
+#include "src/math/fmul.h"
+
+LIST_FMUL_TESTS(float, double, LIBC_NAMESPACE::fmul)
diff --git a/libc/test/src/math/smoke/fmull_test.cpp b/libc/test/src/math/smoke/fmull_test.cpp
new file mode 100644
index 0000000000000..d1151e298c0b6
--- /dev/null
+++ b/libc/test/src/math/smoke/fmull_test.cpp
@@ -0,0 +1,13 @@
+//===-- Unittests for fmull------------------------------------------------===//
+//
+// 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 "FMulTest.h"
+
+#include "src/math/fmull.h"
+
+LIST_FMUL_TESTS(float, long double, LIBC_NAMESPACE::fmull)

>From 92d66d8a93d33599ff8ba286f6860838899f494b Mon Sep 17 00:00:00 2001
From: Job Hernandez <hj93 at protonmail.com>
Date: Wed, 8 May 2024 14:27:55 -0700
Subject: [PATCH 2/2] format code

---
 libc/src/__support/FPUtil/BasicOperations.h |  6 ++----
 libc/test/src/math/smoke/FMulTest.h         | 11 ++++-------
 2 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/libc/src/__support/FPUtil/BasicOperations.h b/libc/src/__support/FPUtil/BasicOperations.h
index e75b4b9391bb8..e3581910e9799 100644
--- a/libc/src/__support/FPUtil/BasicOperations.h
+++ b/libc/src/__support/FPUtil/BasicOperations.h
@@ -176,10 +176,8 @@ LIBC_INLINE T fdim(T x, T y) {
 
   return (x > y ? x - y : 0);
 }
-  
-LIBC_INLINE float fmul(double x, double y) {
-  return static_cast<float>(x * y);
-}
+
+LIBC_INLINE float fmul(double x, double y) { return static_cast<float>(x * y); }
 
 LIBC_INLINE float fmull(long double x, long double y) {
   return static_cast<float>(x * y);
diff --git a/libc/test/src/math/smoke/FMulTest.h b/libc/test/src/math/smoke/FMulTest.h
index d217dc369ef81..412d9eedf1f7c 100644
--- a/libc/test/src/math/smoke/FMulTest.h
+++ b/libc/test/src/math/smoke/FMulTest.h
@@ -19,14 +19,11 @@ class FmulTest : public LIBC_NAMESPACE::testing::FEnvSafeTest {
 public:
   typedef T (*FMulFunc)(R, R);
 
-  void testMul(FMulFunc func) {
-    EXPECT_FP_EQ(T(1.0), func(1.0, 1.0));
-  }
-  
+  void testMul(FMulFunc func) { EXPECT_FP_EQ(T(1.0), func(1.0, 1.0)); }
 };
 
-#define LIST_FMUL_TESTS(T, R, func)				       \
-  using LlvmLibcFmulTest = FmulTest<T,R>;                                \
-  TEST_F(LlvmLibcFmulTest, Mul) { testMul(&func); }                
+#define LIST_FMUL_TESTS(T, R, func)                                            \
+  using LlvmLibcFmulTest = FmulTest<T, R>;                                     \
+  TEST_F(LlvmLibcFmulTest, Mul) { testMul(&func); }
 
 #endif // LLVM_LIBC_TEST_SRC_MATH_SMOKE_FMULTEST_H



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