[libc-commits] [libc] [llvm] [libc] Make sign functions use the emulated float128 type (PR #217389)
via libc-commits
libc-commits at lists.llvm.org
Wed Aug 19 10:28:55 PDT 2026
llvmorg-github-actions[bot] wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-backend-amdgpu
Author: Zorojuro (Sukumarsawant)
<details>
<summary>Changes</summary>
* `fabsf128`
* `copysignf128`
---
Patch is 27.02 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/217389.diff
30 Files Affected:
- (modified) libc/config/baremetal/aarch64/entrypoints.txt (+2-2)
- (modified) libc/config/baremetal/arm/entrypoints.txt (+2-2)
- (modified) libc/config/baremetal/riscv/entrypoints.txt (+2-2)
- (modified) libc/config/darwin/aarch64/entrypoints.txt (+2-2)
- (modified) libc/config/darwin/x86_64/entrypoints.txt (+2)
- (modified) libc/config/freebsd/x86_64/entrypoints.txt (+2-2)
- (modified) libc/config/gpu/amdgpu/entrypoints.txt (+2)
- (modified) libc/config/gpu/nvptx/entrypoints.txt (+2)
- (modified) libc/config/linux/aarch64/entrypoints.txt (+2-2)
- (modified) libc/config/linux/arm/entrypoints.txt (+2)
- (modified) libc/config/linux/riscv/entrypoints.txt (+2-2)
- (modified) libc/config/linux/x86_64/entrypoints.txt (+2-2)
- (modified) libc/config/windows/entrypoints.txt (+2)
- (modified) libc/shared/math/copysignf128.h (-6)
- (modified) libc/shared/math/fabsf128.h (-6)
- (modified) libc/src/__support/math/CMakeLists.txt (+2-2)
- (modified) libc/src/__support/math/copysignf128.h (+4-7)
- (modified) libc/src/__support/math/fabsf128.h (+4-7)
- (modified) libc/src/math/copysignf128.h (+5)
- (modified) libc/src/math/fabsf128.h (+5)
- (modified) libc/src/math/generic/CMakeLists.txt (+2)
- (modified) libc/src/math/generic/copysignf128.cpp (+5-1)
- (modified) libc/src/math/generic/fabsf128.cpp (+4-1)
- (modified) libc/test/shared/shared_math_constexpr_test.cpp (+5-5)
- (modified) libc/test/shared/shared_math_test.cpp (+3-3)
- (modified) libc/test/src/math/smoke/CMakeLists.txt (+2)
- (modified) libc/test/src/math/smoke/copysignf128_test.cpp (+5)
- (modified) libc/test/src/math/smoke/fabsf128_test.cpp (+5)
- (modified) utils/bazel/llvm-project-overlay/libc/BUILD.bazel (+6-2)
- (modified) utils/bazel/llvm-project-overlay/libc/test/src/math/smoke/BUILD.bazel (+6)
``````````diff
diff --git a/libc/config/baremetal/aarch64/entrypoints.txt b/libc/config/baremetal/aarch64/entrypoints.txt
index 7f81cba798adf..e7dce9a59c3d3 100644
--- a/libc/config/baremetal/aarch64/entrypoints.txt
+++ b/libc/config/baremetal/aarch64/entrypoints.txt
@@ -376,6 +376,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -400,6 +401,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -741,14 +743,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
list(APPEND TARGET_LIBM_ENTRYPOINTS
# math.h C23 _Float128 entrypoints
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/baremetal/arm/entrypoints.txt b/libc/config/baremetal/arm/entrypoints.txt
index 5b447392dc188..67ca6750e65f7 100644
--- a/libc/config/baremetal/arm/entrypoints.txt
+++ b/libc/config/baremetal/arm/entrypoints.txt
@@ -388,6 +388,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -412,6 +413,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -752,14 +754,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
list(APPEND TARGET_LIBM_ENTRYPOINTS
# math.h C23 _Float128 entrypoints
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/baremetal/riscv/entrypoints.txt b/libc/config/baremetal/riscv/entrypoints.txt
index 546151d0f0f6e..d38ad6e1c2232 100644
--- a/libc/config/baremetal/riscv/entrypoints.txt
+++ b/libc/config/baremetal/riscv/entrypoints.txt
@@ -384,6 +384,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -408,6 +409,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -749,14 +751,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
list(APPEND TARGET_LIBM_ENTRYPOINTS
# math.h C23 _Float128 entrypoints
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/darwin/aarch64/entrypoints.txt b/libc/config/darwin/aarch64/entrypoints.txt
index a129c629d87fd..b346b2a131a9a 100644
--- a/libc/config/darwin/aarch64/entrypoints.txt
+++ b/libc/config/darwin/aarch64/entrypoints.txt
@@ -195,6 +195,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -219,6 +220,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -561,14 +563,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
list(APPEND TARGET_LIBM_ENTRYPOINTS
# math.h C23 _Float128 entrypoints
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/darwin/x86_64/entrypoints.txt b/libc/config/darwin/x86_64/entrypoints.txt
index 233bda89d1363..52ee843d106c3 100644
--- a/libc/config/darwin/x86_64/entrypoints.txt
+++ b/libc/config/darwin/x86_64/entrypoints.txt
@@ -121,6 +121,7 @@ set(TARGET_LIBM_ENTRYPOINTS
#libc.src.math.atan2f128
#libc.src.math.copysign
#libc.src.math.copysignf
+ #libc.src.math.copysignf128
#libc.src.math.copysignl
#libc.src.math.ceil
#libc.src.math.ceilf
@@ -138,6 +139,7 @@ set(TARGET_LIBM_ENTRYPOINTS
#libc.src.math.expm1f
#libc.src.math.fabs
#libc.src.math.fabsf
+ #libc.src.math.fabsf128
#libc.src.math.fabsl
#libc.src.math.fdim
#libc.src.math.fdimf
diff --git a/libc/config/freebsd/x86_64/entrypoints.txt b/libc/config/freebsd/x86_64/entrypoints.txt
index 4b4af90c13909..c51949b135c12 100644
--- a/libc/config/freebsd/x86_64/entrypoints.txt
+++ b/libc/config/freebsd/x86_64/entrypoints.txt
@@ -132,6 +132,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.cbrtf
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.ceil
libc.src.math.ceilf
@@ -155,6 +156,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -500,14 +502,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
list(APPEND TARGET_LIBM_ENTRYPOINTS
libc.src.math.atan2l
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/gpu/amdgpu/entrypoints.txt b/libc/config/gpu/amdgpu/entrypoints.txt
index 32442b46325b5..1b68b9fdaa75c 100644
--- a/libc/config/gpu/amdgpu/entrypoints.txt
+++ b/libc/config/gpu/amdgpu/entrypoints.txt
@@ -327,6 +327,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -348,6 +349,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
diff --git a/libc/config/gpu/nvptx/entrypoints.txt b/libc/config/gpu/nvptx/entrypoints.txt
index 4e3f1ec82ce24..2d372c34047c1 100644
--- a/libc/config/gpu/nvptx/entrypoints.txt
+++ b/libc/config/gpu/nvptx/entrypoints.txt
@@ -323,6 +323,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -344,6 +345,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index c4d5ee29e1c2b..8c41024e3904f 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -539,6 +539,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -563,6 +564,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -894,14 +896,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
list(APPEND TARGET_LIBM_ENTRYPOINTS
# math.h C23 _Float128 entrypoints
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index a948635a86132..c4fa17986e9a7 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -370,6 +370,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -387,6 +388,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index a987808385aaf..2d311be11f5f4 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -603,6 +603,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -627,6 +628,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -979,14 +981,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
# math.h C23 _Float128 entrypoints
libc.src.math.atan2l
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index 57ce3807fab3f..f8a6e4ac016d0 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -613,6 +613,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.ceill
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.cos
libc.src.math.cosf
@@ -637,6 +638,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
@@ -989,14 +991,12 @@ if(LIBC_TYPES_HAS_NATIVE_FLOAT128)
# math.h C23 _Float128 entrypoints
libc.src.math.atan2l
libc.src.math.canonicalizef128
- libc.src.math.copysignf128
libc.src.math.daddf128
libc.src.math.ddivf128
libc.src.math.dfmaf128
libc.src.math.dmulf128
libc.src.math.dsqrtf128
libc.src.math.dsubf128
- libc.src.math.fabsf128
libc.src.math.faddf128
libc.src.math.fdimf128
libc.src.math.fdivf128
diff --git a/libc/config/windows/entrypoints.txt b/libc/config/windows/entrypoints.txt
index 76f9f0cc707e8..c3efab38cd60c 100644
--- a/libc/config/windows/entrypoints.txt
+++ b/libc/config/windows/entrypoints.txt
@@ -164,6 +164,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.cbrtbf16
libc.src.math.copysign
libc.src.math.copysignf
+ libc.src.math.copysignf128
libc.src.math.copysignl
libc.src.math.ceil
libc.src.math.ceilf
@@ -187,6 +188,7 @@ set(TARGET_LIBM_ENTRYPOINTS
libc.src.math.expm1f
libc.src.math.fabs
libc.src.math.fabsf
+ libc.src.math.fabsf128
libc.src.math.fabsl
libc.src.math.fadd
libc.src.math.faddl
diff --git a/libc/shared/math/copysignf128.h b/libc/shared/math/copysignf128.h
index 1b23f61f910fd..b6e156b96afd6 100644
--- a/libc/shared/math/copysignf128.h
+++ b/libc/shared/math/copysignf128.h
@@ -9,10 +9,6 @@
#ifndef LLVM_LIBC_SHARED_MATH_COPYSIGNF128_H
#define LLVM_LIBC_SHARED_MATH_COPYSIGNF128_H
-#include "include/llvm-libc-types/float128.h"
-
-#ifdef LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#include "shared/libc_common.h"
#include "src/__support/math/copysignf128.h"
@@ -24,6 +20,4 @@ using math::copysignf128;
} // namespace shared
} // namespace LIBC_NAMESPACE_DECL
-#endif // LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#endif // LLVM_LIBC_SHARED_MATH_COPYSIGNF128_H
diff --git a/libc/shared/math/fabsf128.h b/libc/shared/math/fabsf128.h
index 88e4d03686832..037553bcb97ee 100644
--- a/libc/shared/math/fabsf128.h
+++ b/libc/shared/math/fabsf128.h
@@ -9,10 +9,6 @@
#ifndef LLVM_LIBC_SHARED_MATH_FABSF128_H
#define LLVM_LIBC_SHARED_MATH_FABSF128_H
-#include "include/llvm-libc-types/float128.h"
-
-#ifdef LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#include "shared/libc_common.h"
#include "src/__support/math/fabsf128.h"
@@ -24,6 +20,4 @@ using math::fabsf128;
} // namespace shared
} // namespace LIBC_NAMESPACE_DECL
-#endif // LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#endif // LLVM_LIBC_SHARED_MATH_FABSF128_H
diff --git a/libc/src/__support/math/CMakeLists.txt b/libc/src/__support/math/CMakeLists.txt
index c0cdb885d4db7..9ec3f8eb3242e 100644
--- a/libc/src/__support/math/CMakeLists.txt
+++ b/libc/src/__support/math/CMakeLists.txt
@@ -2758,7 +2758,7 @@ add_header_library(
HDRS
copysignf128.h
DEPENDS
- libc.include.llvm-libc-types.float128
+ libc.src.__support.FPUtil.float128
libc.src.__support.FPUtil.manipulation_functions
libc.src.__support.macros.config
)
@@ -3226,7 +3226,7 @@ add_header_library(
HDRS
fabsf128.h
DEPENDS
- libc.include.llvm-libc-types.float128
+ libc.src.__support.FPUtil.float128
libc.src.__support.FPUtil.basic_operations
libc.src.__support.macros.config
)
diff --git a/libc/src/__support/math/copysignf128.h b/libc/src/__support/math/copysignf128.h
index 55b0c4caee205..5c77c95050e32 100644
--- a/libc/src/__support/math/copysignf128.h
+++ b/libc/src/__support/math/copysignf128.h
@@ -9,23 +9,20 @@
#ifndef LLVM_LIBC_SRC___SUPPORT_MATH_COPYSIGNF128_H
#define LLVM_LIBC_SRC___SUPPORT_MATH_COPYSIGNF128_H
-#include "include/llvm-libc-types/float128.h"
-
-#ifdef LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#include "src/__support/FPUtil/ManipulationFunctions.h"
+#include "src/__support/FPUtil/float128.h"
#include "src/__support/macros/config.h"
namespace LIBC_NAMESPACE_DECL {
namespace math {
-LIBC_INLINE constexpr float128 copysignf128(float128 x, float128 y) {
+using LIBC_NAMESPACE::fputil::Float128;
+
+LIBC_INLINE constexpr Float128 copysignf128(Float128 x, Float128 y) {
return fputil::copysign(x, y);
}
} // namespace math
} // namespace LIBC_NAMESPACE_DECL
-#endif // LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#endif // LLVM_LIBC_SRC___SUPPORT_MATH_COPYSIGNF128_H
diff --git a/libc/src/__support/math/fabsf128.h b/libc/src/__support/math/fabsf128.h
index 242c91ff8e332..78c68e58ad81d 100644
--- a/libc/src/__support/math/fabsf128.h
+++ b/libc/src/__support/math/fabsf128.h
@@ -9,21 +9,18 @@
#ifndef LLVM_LIBC_SRC___SUPPORT_MATH_FABSF128_H
#define LLVM_LIBC_SRC___SUPPORT_MATH_FABSF128_H
-#include "include/llvm-libc-types/float128.h"
-
-#ifdef LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#include "src/__support/FPUtil/BasicOperations.h"
+#include "src/__support/FPUtil/float128.h"
#include "src/__support/macros/config.h"
namespace LIBC_NAMESPACE_DECL {
namespace math {
-LIBC_INLINE constexpr float128 fabsf128(float128 x) { return fputil::abs(x); }
+using LIBC_NAMESPACE::fputil::Float128;
+
+LIBC_INLINE constexpr Float128 fabsf128(Float128 x) { return fputil::abs(x); }
} // namespace math
} // namespace LIBC_NAMESPACE_DECL
-#endif // LIBC_TYPES_HAS_NATIVE_FLOAT128
-
#endif // LLVM_LIBC_SRC___SUPPORT_MATH_FABSF128_H
diff --git a/libc/src/math/copysignf128.h b/libc/src/math/copysignf128.h
index b001b8e61b258..bd98ccd8de3dd 100644
--- a/libc/src/math/copysignf128.h
+++ b/libc/src/math/copysignf128.h
@@ -9,11 +9,16 @@
#ifndef LLVM_LIBC_SRC_MATH_COPYSIGNF128_H
#define LLVM_LIBC_SRC_MATH_COPYSIGNF128_H
+#include "src/__support/FPUtil/float128.h"
#include "src/__support/macros/config.h"
#include "src/__support/macros/properties/types.h"
namespace LIBC_NAMESPACE_DECL {
+#ifndef LIBC_TYPES_HAS_NATIVE_FLOAT128
+using float128 = LIBC_NAMESPACE::fputil::Float128;
+#endif // LIBC_TYPES_HAS_NATIVE_FLOAT128
+
float128 copysignf128(float128 x, float128 y);
} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/fabsf128.h b/libc/src/math/fabsf128.h
index 4507e57c3cdc4..b196ef37b3f52 100644
--- a/libc/src/math/fabsf128.h
+++ b/libc/src/math/fabsf128.h
@@ -9,11 +9,16 @@
#ifndef LLVM_LIBC_SRC_MATH_FABSF128_H
#define LLVM_LIBC_SRC_MATH_FABSF128_H
+#include "src/__support/FPUtil/float128.h"
#include "src/__support/macros/config.h"
#include "src/__support/macros/properties/types.h"
namespace LIBC_NAMESPACE_DECL {
+#ifndef LIBC_TYPES_HAS_NATIVE_FLOAT128
+using float128 = LIBC_NAMESPACE::fputil::Float128;
+#endif // LIBC_TYPES_HAS_NATIVE_FLOAT128
+
float128 fabsf128(float128 x);
} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/CMakeLists.txt b/libc/src/math/generic/CMakeLists.txt
index 116a1e375877f..46265a187ecd1 100644
--- a/libc/src/math/generic/CMakeLists.txt
+++ b/libc/src/math/generic/CMakeLists.txt
@@ -514,6 +514,7 @@ add_entrypoint_object(
HDRS
../fabsf128.h
DEPENDS
+ libc.src.__support.CPP.bit
libc.src.__support.math.fabsf128
)
@@ -1459,6 +1460,7 @@ add_entrypoint_object(
HDRS
../copysignf128.h
DEPENDS
+ libc.src.__support.CPP.bit
libc.src.__support.math.copysignf128
)
diff --git a/libc/src/math/generic/copysignf128.cpp b/libc/src/math/generic/copysignf128.cpp
index 9af98f0d10723..1b0e14790549f 100644
--- a/libc/src/math/generic/copysignf128.cpp
+++ b/libc/src/math/generic/copysignf128.cpp
@@ -7,12 +7,16 @@
//===----------------------------------------------------------------------===//
#include "src/math/copysignf128.h"
+#include "src/__support/CPP/bit.h"
#include "src/__support/math/copysignf128.h"
namespace LIBC_NAMESPACE_DECL {
+using LIBC_NAMESPACE::fputil::Float128;
+
LLVM_LIBC_FUNCTION(float128, copysignf128, (float128 x, float128 y)) {
- return math::copysignf128(x, y);
+ return cpp::bit_cast<float128>(math::copysignf128(
+ cpp::bit_cast<Float128>(x), cpp::bit_cast<Float128>(y)));
}
} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/src/math/generic/fabsf128.cpp b/libc/src/math/generic/fabsf128.cpp
index 1f54d141600f5..0045bcd49d02f 100644
--- a/libc/src/math/generic/fabsf128.cpp
+++ b/libc/src/math/generic/fabsf128.cpp
@@ -7,12 +7,15 @@
//===----------------------------------------------------------------------===//
#include "src/math/fabsf128.h"
+#include "src/__support/CPP/bit.h"
#include "src/__support/math/fabsf128.h"
namespace LIBC_NAMESPACE_DECL {
+using LIBC_NAMESPACE::fputil::Float128;
+
LLVM_LIBC_FUNCTION(float128, fabsf128, (float128 x)) {
- return math::fabsf128(x);
+ return cpp::bit_cast<float128>(math::fabsf128(cpp::bit_cast<Float128>(x)));
}
} // namespace LIBC_NAMESPACE_DECL
diff --git a/libc/test/shared/shared_math_constexpr_test.cpp b/libc/test/shared/shared_math_constexpr_test.cpp
index 654490151e4de..c02683eff896f 100...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/217389
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