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| author | Joseph Myers <joseph@codesourcery.com> | 2023-01-05 00:02:54 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2023-01-05 00:02:54 +0000 |
| commit | 8f27dc1af5238adbc14000f073178ee4a2c2b3cf (patch) | |
| tree | bbebcbbed7c64786ea1f0582e19354262cb1ce27 /sysdeps/ieee754 | |
| parent | 48b74865c63840b288bd85b4d8743533b73b339b (diff) | |
| download | glibc-8f27dc1af5238adbc14000f073178ee4a2c2b3cf.zip glibc-8f27dc1af5238adbc14000f073178ee4a2c2b3cf.tar.gz glibc-8f27dc1af5238adbc14000f073178ee4a2c2b3cf.tar.bz2 | |
Fix ldbl-128 built-in function use
Fix the following issues with built-in function use in
sysdeps/ieee754/ldbl-128 and sysdeps/ieee754/float128:
* fabsl used __builtin_fabsf128 unconditionally, breaking the build
with GCC 6 for several architectures; it should use __builtin_fabsl
with an appropriate redirection in float128_private.h. (I'm not
particularly concerned with building glibc with GCC 6; rather, I
want to be able to run the tgmath.h tests with GCC 6, which is a
significantly different case for tgmath.h compared to GCC 7 and
later because of the lack of _FloatN / _FloatNx support in the
compiler, and at present running the tests with a compiler means
building glibc with that compiler.)
* Some (conditional) uses of built-in functions had been added to
ldbl-128 without appropriate float128_private.h remapping (there was
remapping for the macros controlling whether the built-in functions
are used, just not for the functions themselves).
* s_llrintl.c called __builtin_round not __builtin_llrintl, which is
obviously wrong.
Tested with build-many-glibcs.py for aarch64-linux-gnu, GCC 6 (where
it fixes the glibc build) and GCC 12, and with the glibc testsuite for
x86_64.
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/float128/float128_private.h | 4 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_fabsl.c | 2 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_llrintl.c | 2 |
3 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/ieee754/float128/float128_private.h b/sysdeps/ieee754/float128/float128_private.h index 78107b1..b786488 100644 --- a/sysdeps/ieee754/float128/float128_private.h +++ b/sysdeps/ieee754/float128/float128_private.h @@ -406,7 +406,11 @@ #define __builtin_ceill __builtin_ceilf128 #define __builtin_truncl __builtin_truncf128 #define __builtin_roundl __builtin_roundf128 +#define __builtin_roundevenl __builtin_roundevenf128 +#define __builtin_lrintl __builtin_lrintf128 +#define __builtin_llrintl __builtin_llrintf128 #define __builtin_copysignl __builtin_copysignf128 +#define __builtin_fabsl __builtin_fabsf128 /* Get the constant suffix from bits/floatn-compat.h. */ #define L(x) __f128 (x) diff --git a/sysdeps/ieee754/ldbl-128/s_fabsl.c b/sysdeps/ieee754/ldbl-128/s_fabsl.c index f22515f..2e5ea3f 100644 --- a/sysdeps/ieee754/ldbl-128/s_fabsl.c +++ b/sysdeps/ieee754/ldbl-128/s_fabsl.c @@ -27,6 +27,6 @@ static char rcsid[] = "$NetBSD: $"; _Float128 __fabsl (_Float128 x) { - return __builtin_fabsf128 (x); + return __builtin_fabsl (x); } libm_alias_ldouble (__fabs, fabs) diff --git a/sysdeps/ieee754/ldbl-128/s_llrintl.c b/sysdeps/ieee754/ldbl-128/s_llrintl.c index 3a5635d..22e6e5f 100644 --- a/sysdeps/ieee754/ldbl-128/s_llrintl.c +++ b/sysdeps/ieee754/ldbl-128/s_llrintl.c @@ -31,7 +31,7 @@ long long int __llrintl (_Float128 x) { #if USE_LLRINTL_BUILTIN - return __builtin_round (x); + return __builtin_llrintl (x); #else /* Use generic implementation. */ static const _Float128 two112[2] = |