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| author | Jakub Jelinek <jakub@redhat.com> | 2010-10-18 07:29:50 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2010-10-18 07:29:50 -0400 |
| commit | 7c08a05c5f4f86f9e249c2554b1628da0f812364 (patch) | |
| tree | ba03c8bb069dfcd50dcf07eef670dd1da8bf27d6 /sysdeps/ieee754 | |
| parent | 3e692e0518b4f4679352d25102bd47cf3f85c592 (diff) | |
| download | glibc-7c08a05c5f4f86f9e249c2554b1628da0f812364.tar glibc-7c08a05c5f4f86f9e249c2554b1628da0f812364.tar.gz glibc-7c08a05c5f4f86f9e249c2554b1628da0f812364.tar.bz2 glibc-7c08a05c5f4f86f9e249c2554b1628da0f812364.zip | |
IEEE quad fmal fixes
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_fmal.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_fmal.c b/sysdeps/ieee754/ldbl-128/s_fmal.c index 9ec5ba9ee9..b750538b8a 100644 --- a/sysdeps/ieee754/ldbl-128/s_fmal.c +++ b/sysdeps/ieee754/ldbl-128/s_fmal.c @@ -175,6 +175,8 @@ __fmal (long double x, long double y, long double z) if ((u.ieee.mantissa3 & 1) == 0) u.ieee.mantissa3 |= fetestexcept (FE_INEXACT) != 0; v.d = a1 + u.d; + /* Ensure the addition is not scheduled after fetestexcept call. */ + asm volatile ("" : "m" (v)); int j = fetestexcept (FE_INEXACT) != 0; feupdateenv (&env); /* Ensure the following computations are performed in default rounding @@ -207,9 +209,9 @@ __fmal (long double x, long double y, long double z) { v.d *= 0x1p-226L; if (v.ieee.negative) - return v.d - 0x1p-16493L /* __LDBL_DENORM_MIN__ */; + return v.d - 0x1p-16494L /* __LDBL_DENORM_MIN__ */; else - return v.d + 0x1p-16493L /* __LDBL_DENORM_MIN__ */; + return v.d + 0x1p-16494L /* __LDBL_DENORM_MIN__ */; } else return v.d * 0x1p-226L; |