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-rw-r--r--sysdeps/generic/math-use-builtins-roundeven.h4
-rw-r--r--sysdeps/generic/math-use-builtins.h1
-rw-r--r--sysdeps/ieee754/dbl-64/s_roundeven.c5
-rw-r--r--sysdeps/ieee754/float128/float128_private.h2
-rw-r--r--sysdeps/ieee754/flt-32/s_roundevenf.c5
-rw-r--r--sysdeps/ieee754/ldbl-128/s_roundevenl.c5
6 files changed, 22 insertions, 0 deletions
diff --git a/sysdeps/generic/math-use-builtins-roundeven.h b/sysdeps/generic/math-use-builtins-roundeven.h
new file mode 100644
index 0000000000..bd2e84c93f
--- /dev/null
+++ b/sysdeps/generic/math-use-builtins-roundeven.h
@@ -0,0 +1,4 @@
+#define USE_ROUNDEVEN_BUILTIN 0
+#define USE_ROUNDEVENF_BUILTIN 0
+#define USE_ROUNDEVENL_BUILTIN 0
+#define USE_ROUNDEVENF128_BUILTIN 0
diff --git a/sysdeps/generic/math-use-builtins.h b/sysdeps/generic/math-use-builtins.h
index cc3e9f2201..19d2d1cf3c 100644
--- a/sysdeps/generic/math-use-builtins.h
+++ b/sysdeps/generic/math-use-builtins.h
@@ -30,6 +30,7 @@
#include <math-use-builtins-ceil.h>
#include <math-use-builtins-trunc.h>
#include <math-use-builtins-round.h>
+#include <math-use-builtins-roundeven.h>
#include <math-use-builtins-copysign.h>
#include <math-use-builtins-sqrt.h>
#include <math-use-builtins-fma.h>
diff --git a/sysdeps/ieee754/dbl-64/s_roundeven.c b/sysdeps/ieee754/dbl-64/s_roundeven.c
index 5deff3bb8a..88c051e9fe 100644
--- a/sysdeps/ieee754/dbl-64/s_roundeven.c
+++ b/sysdeps/ieee754/dbl-64/s_roundeven.c
@@ -21,6 +21,7 @@
#include <math_private.h>
#include <libm-alias-double.h>
#include <stdint.h>
+#include <math-use-builtins.h>
#define BIAS 0x3ff
#define MANT_DIG 53
@@ -29,6 +30,9 @@
double
__roundeven (double x)
{
+#if USE_ROUNDEVEN_BUILTIN
+ return __builtin_roundeven (x);
+#else
uint64_t ix, ux;
EXTRACT_WORDS64 (ix, x);
ux = ix & 0x7fffffffffffffffULL;
@@ -66,6 +70,7 @@ __roundeven (double x)
ix &= 0x8000000000000000ULL;
INSERT_WORDS64 (x, ix);
return x;
+#endif /* ! USE_ROUNDEVEN_BUILTIN */
}
#ifndef __roundeven
libm_alias_double (__roundeven, roundeven)
diff --git a/sysdeps/ieee754/float128/float128_private.h b/sysdeps/ieee754/float128/float128_private.h
index 979138851b..b6b6d3d5fd 100644
--- a/sysdeps/ieee754/float128/float128_private.h
+++ b/sysdeps/ieee754/float128/float128_private.h
@@ -152,6 +152,8 @@
#define USE_TRUNCL_BUILTIN USE_TRUNCF128_BUILTIN
#undef USE_ROUNDL_BUILTIN
#define USE_ROUNDL_BUILTIN USE_ROUNDF128_BUILTIN
+#undef USE_ROUNDEVENL_BUILTIN
+#define USE_ROUNDEVENL_BUILTIN USE_ROUNDEVENF128_BUILTIN
#undef USE_COPYSIGNL_BUILTIN
#define USE_COPYSIGNL_BUILTIN USE_COPYSIGNF128_BUILTIN
#undef USE_FMAL_BUILTIN
diff --git a/sysdeps/ieee754/flt-32/s_roundevenf.c b/sysdeps/ieee754/flt-32/s_roundevenf.c
index 2cc0d7b001..4f568579d8 100644
--- a/sysdeps/ieee754/flt-32/s_roundevenf.c
+++ b/sysdeps/ieee754/flt-32/s_roundevenf.c
@@ -21,6 +21,7 @@
#include <math.h>
#include <math_private.h>
#include <libm-alias-float.h>
+#include <math-use-builtins.h>
#include <stdint.h>
#define BIAS 0x7f
@@ -30,6 +31,9 @@
float
__roundevenf (float x)
{
+#if USE_ROUNDEVENF_BUILTIN
+ return __builtin_roundevenf (x);
+#else
uint32_t ix, ux;
GET_FLOAT_WORD (ix, x);
ux = ix & 0x7fffffff;
@@ -67,6 +71,7 @@ __roundevenf (float x)
ix &= 0x80000000;
SET_FLOAT_WORD (x, ix);
return x;
+#endif /* ! USE_ROUNDEVENF_BUILTIN */
}
#ifndef __roundevenf
libm_alias_float (__roundeven, roundeven)
diff --git a/sysdeps/ieee754/ldbl-128/s_roundevenl.c b/sysdeps/ieee754/ldbl-128/s_roundevenl.c
index 7c9c11fad2..afbf13d4f2 100644
--- a/sysdeps/ieee754/ldbl-128/s_roundevenl.c
+++ b/sysdeps/ieee754/ldbl-128/s_roundevenl.c
@@ -21,6 +21,7 @@
#include <math.h>
#include <math_private.h>
#include <libm-alias-ldouble.h>
+#include <math-use-builtins.h>
#include <stdint.h>
#define BIAS 0x3fff
@@ -30,6 +31,9 @@
_Float128
__roundevenl (_Float128 x)
{
+#if USE_ROUNDEVENL_BUILTIN
+ return __builtin_roundevenl (x);
+#else
uint64_t hx, lx, uhx;
GET_LDOUBLE_WORDS64 (hx, lx, x);
uhx = hx & 0x7fffffffffffffffULL;
@@ -101,5 +105,6 @@ __roundevenl (_Float128 x)
}
SET_LDOUBLE_WORDS64 (x, hx, lx);
return x;
+#endif /* ! USE_ROUNDEVENL_BUILTIN */
}
libm_alias_ldouble (__roundeven, roundeven)