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* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-11-02 20:01 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-11-02 20:01 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=f069aa0dc99e823cd6c898ab607166ab5030c461
commit f069aa0dc99e823cd6c898ab607166ab5030c461
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-11-03 7:41 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-11-03 7:41 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=82fa399bce4fe1c2f0f0a2fdcef9d475d7204e03
commit 82fa399bce4fe1c2f0f0a2fdcef9d475d7204e03
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-10-20 21:24 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-10-20 21:24 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a82b4928321aeed0aa06778e7facfb825d06899a
commit a82b4928321aeed0aa06778e7facfb825d06899a
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-10-19 17:02 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-10-19 17:02 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0ef349c2b97ed3d9542c01c6132d705ab6939f45
commit 0ef349c2b97ed3d9542c01c6132d705ab6939f45
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-10-11 18:16 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-10-11 18:16 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ce7bd0f8a5399decf589d826340a5e172170921b
commit ce7bd0f8a5399decf589d826340a5e172170921b
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-10-10 23:34 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-10-10 23:34 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=31554aa3e35fc73d83998641f580c451bddd36b0
commit 31554aa3e35fc73d83998641f580c451bddd36b0
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
* [glibc/maskray/clang] x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
@ 2021-10-10 23:13 Fangrui Song
0 siblings, 0 replies; 7+ messages in thread
From: Fangrui Song @ 2021-10-10 23:13 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=197edb2a19a2a8ce554b1b17c9588015ad7e143b
commit 197edb2a19a2a8ce554b1b17c9588015ad7e143b
Author: Fangrui Song <maskray@google.com>
Date: Sun Oct 10 14:38:00 2021 -0700
x86: Define __HAVE_FLOAT128 for Clang and use __builtin_*f128 code path
Clang supports __builtin_fabsf128 (despite not supporting _Float128) but
_not _builtin_fabsq.
By falling back to `typedef __float128 _Float128;`, the float128 code
will be buildable with Clang.
Diff:
---
sysdeps/x86/bits/floatn.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/sysdeps/x86/bits/floatn.h b/sysdeps/x86/bits/floatn.h
index f0c51716a9..890f2fafc9 100644
--- a/sysdeps/x86/bits/floatn.h
+++ b/sysdeps/x86/bits/floatn.h
@@ -28,7 +28,8 @@
support, for x86_64 and x86. */
#if (defined __x86_64__ \
? __GNUC_PREREQ (4, 3) \
- : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4)))
+ : (defined __GNU__ ? __GNUC_PREREQ (4, 5) : __GNUC_PREREQ (4, 4))) \
+ || defined __clang__
# define __HAVE_FLOAT128 1
#else
# define __HAVE_FLOAT128 0
@@ -58,7 +59,7 @@
/* Defined to concatenate the literal suffix to be used with _Float128
types, if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* The literal suffix f128 exists only since GCC 7.0. */
# define __f128(x) x##q
# else
@@ -68,7 +69,7 @@
/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
# if __HAVE_FLOAT128
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
/* Add a typedef for older GCC compilers which don't natively support
_Complex _Float128. */
typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
@@ -82,12 +83,12 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# if __HAVE_FLOAT128
/* The type _Float128 exists only since GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
+# if !__GNUC_PREREQ (7, 0) || defined __clang__ || defined __cplusplus
typedef __float128 _Float128;
# endif
/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_huge_valf128() ((_Float128) __builtin_huge_val ())
# endif
@@ -96,7 +97,7 @@ typedef __float128 _Float128;
Converting a narrower sNaN to _Float128 produces a quiet NaN, so
attempts to use _Float128 sNaNs will not work properly with older
compilers. */
-# if !__GNUC_PREREQ (7, 0)
+# if !__GNUC_PREREQ (7, 0) && !defined __clang__
# define __builtin_copysignf128 __builtin_copysignq
# define __builtin_fabsf128 __builtin_fabsq
# define __builtin_inff128() ((_Float128) __builtin_inf ())
@@ -108,7 +109,7 @@ typedef __float128 _Float128;
e.g.: __builtin_signbitf128, before GCC 6. However, there has never
been a __builtin_signbitf128 in GCC and the type-generic builtin is
only available since GCC 6. */
-# if !__GNUC_PREREQ (6, 0)
+# if !__GNUC_PREREQ (6, 0) && !defined __clang__
# define __builtin_signbitf128 __signbitf128
# endif
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-11-03 7:41 UTC | newest]
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