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| author | Joseph Myers <joseph@codesourcery.com> | 2013-11-29 16:31:16 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2013-11-29 16:31:16 +0000 |
| commit | ea3bc4e821e20e70b093c9a33e54f99c79e0d847 (patch) | |
| tree | 822fa8b196e69580a4f4c9fb4eb63bd0ddbe6147 /sysdeps/i386/fpu/e_sqrt.S | |
| parent | 0712c9d861f4e861313a7f9fad06609bd1afb263 (diff) | |
| download | glibc-ea3bc4e821e20e70b093c9a33e54f99c79e0d847.tar glibc-ea3bc4e821e20e70b093c9a33e54f99c79e0d847.tar.gz glibc-ea3bc4e821e20e70b093c9a33e54f99c79e0d847.tar.bz2 glibc-ea3bc4e821e20e70b093c9a33e54f99c79e0d847.zip | |
Fix x86 sqrt rounding (bug 14032).
Diffstat (limited to 'sysdeps/i386/fpu/e_sqrt.S')
| -rw-r--r-- | sysdeps/i386/fpu/e_sqrt.S | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/sysdeps/i386/fpu/e_sqrt.S b/sysdeps/i386/fpu/e_sqrt.S index 1054ba4532..fba5833a9a 100644 --- a/sysdeps/i386/fpu/e_sqrt.S +++ b/sysdeps/i386/fpu/e_sqrt.S @@ -7,7 +7,17 @@ ENTRY(__ieee754_sqrt) fldl 4(%esp) + subl $8, %esp + cfi_adjust_cfa_offset (8) + fstcw 4(%esp) + movl $0xfeff, %edx + andl 4(%esp), %edx + movl %edx, (%esp) + fldcw (%esp) fsqrt + fldcw 4(%esp) + addl $8, %esp + cfi_adjust_cfa_offset (-8) ret END (__ieee754_sqrt) strong_alias (__ieee754_sqrt, __sqrt_finite) |