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Update lrint/lrintf/lrintl for x32

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The x86_64 versions of lrint/lrintf/ lrintl are aliases for the long
long versions which isn't correct for x32, where exceptions must respect
overflow for 32-bit long.  Separate versions of the long functions for
x32 that convert to 32-bit long and raise the right exceptions for that
conversion, while keeping the aliases in the non-x32 case.

Tested on x86_64 and x32.  There are no code changes in libm.so on
x86_64.

	* sysdeps/x86_64/fpu/s_llrint.S (__lrint): Add alias only if
	__ILP32__ isn't defined.
	(lrint): Likewise.
	* sysdeps/x86_64/fpu/s_llrintf.S (__lrintf): Likewise.
	(lrintf): Likewise.
	* sysdeps/x86_64/fpu/s_llrintl.S (__lrintl): Likewise.
	(lrintl): Likewise.
	* sysdeps/x86_64/x32/fpu/s_lrint.S: New file.
	* sysdeps/x86_64/x32/fpu/s_lrintf.S: Likewise.
	* sysdeps/x86_64/x32/fpu/s_lrintl.S: Likewise.
This commit is contained in:
H.J. Lu 2015-10-09 11:33:30 -07:00
parent 0fcc93bce9
commit 4b71ce6c1a
7 changed files with 103 additions and 1 deletions
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13
ChangeLog
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@ -1,3 +1,16 @@
2015-10-09 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/fpu/s_llrint.S (__lrint): Add alias only if
__ILP32__ isn't defined.
(lrint): Likewise.
* sysdeps/x86_64/fpu/s_llrintf.S (__lrintf): Likewise.
(lrintf): Likewise.
* sysdeps/x86_64/fpu/s_llrintl.S (__lrintl): Likewise.
(lrintl): Likewise.
* sysdeps/x86_64/x32/fpu/s_lrint.S: New file.
* sysdeps/x86_64/x32/fpu/s_lrintf.S: Likewise.
* sysdeps/x86_64/x32/fpu/s_lrintl.S: Likewise.
2015-10-09 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S

2
sysdeps/x86_64/fpu/s_llrint.S
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@ -26,5 +26,7 @@ ENTRY(__llrint)
ret
END(__llrint)
weak_alias (__llrint, llrint)
#ifndef __ILP32__
strong_alias (__llrint, __lrint)
weak_alias (__llrint, lrint)
#endif

2
sysdeps/x86_64/fpu/s_llrintf.S
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@ -26,5 +26,7 @@ ENTRY(__llrintf)
ret
END(__llrintf)
weak_alias (__llrintf, llrintf)
#ifndef __ILP32__
strong_alias (__llrintf, __lrintf)
weak_alias (__llrintf, lrintf)
#endif

3
sysdeps/x86_64/fpu/s_llrintl.S
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@ -28,6 +28,7 @@ ENTRY(__llrintl)
ret
END(__llrintl)
weak_alias (__llrintl, llrintl)
#ifndef __ILP32__
strong_alias (__llrintl, __lrintl)
weak_alias (__llrintl, lrintl)
#endif

27
sysdeps/x86_64/x32/fpu/s_lrint.S Normal file
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@ -0,0 +1,27 @@
/* Round argument to nearest integral value according to current rounding
direction.
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
.text
ENTRY(__lrint)
cvtsd2si %xmm0,%eax
ret
END(__lrint)
weak_alias (__lrint, lrint)

27
sysdeps/x86_64/x32/fpu/s_lrintf.S Normal file
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@ -0,0 +1,27 @@
/* Round argument to nearest integral value according to current rounding
direction.
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
.text
ENTRY(__lrintf)
cvtss2si %xmm0,%eax
ret
END(__lrintf)
weak_alias (__lrintf, lrintf)

30
sysdeps/x86_64/x32/fpu/s_lrintl.S Normal file
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@ -0,0 +1,30 @@
/* Round argument to nearest integral value according to current rounding
direction.
Copyright (C) 1997-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <sysdep.h>
.text
ENTRY(__lrintl)
fldt 8(%rsp)
fistpl -4(%rsp)
fwait
movl -4(%rsp),%eax
ret
END(__lrintl)
weak_alias (__lrintl, lrintl)