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| author | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2011-10-25 00:37:10 +0000 |
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| committer | joseph <joseph@7b3dc134-2b1b-0410-93df-9e9f96275f8d> | 2011-10-25 00:37:10 +0000 |
| commit | 4bbe4e2185c5484328182720ff7b3bb4f9593bff (patch) | |
| tree | cd67e40a74928c0f58d4f5b79d2e260e4099fee7 /libc/sysdeps/x86_64/fpu/e_log10l.S | |
| parent | 91b4be71461f78cabe1fb5f164cea71b60e9e98a (diff) | |
| download | eglibc2-4bbe4e2185c5484328182720ff7b3bb4f9593bff.tar.gz | |
Merge changes between r15223 and r15532 from /fsf/trunk.
git-svn-id: svn://svn.eglibc.org/trunk@15545 7b3dc134-2b1b-0410-93df-9e9f96275f8d
Diffstat (limited to 'libc/sysdeps/x86_64/fpu/e_log10l.S')
| -rw-r--r-- | libc/sysdeps/x86_64/fpu/e_log10l.S | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/libc/sysdeps/x86_64/fpu/e_log10l.S b/libc/sysdeps/x86_64/fpu/e_log10l.S index 633234b74..50c58757a 100644 --- a/libc/sysdeps/x86_64/fpu/e_log10l.S +++ b/libc/sysdeps/x86_64/fpu/e_log10l.S @@ -10,14 +10,12 @@ #include <machine/asm.h> -RCSID("$NetBSD: $") - #ifdef __ELF__ - .section .rodata + .section .rodata.cst8,"aM",@progbits,8 #else .text #endif - .align ALIGNARG(4) + .p2align 3 ASM_TYPE_DIRECTIVE(one,@object) one: .double 1.0 ASM_SIZE_DIRECTIVE(one) @@ -30,9 +28,9 @@ limit: .double 0.29 #ifdef PIC -#define MO(op) op##(%rip) +# define MO(op) op##(%rip) #else -#define MO(op) op +# define MO(op) op #endif .text @@ -65,3 +63,20 @@ ENTRY(__ieee754_log10l) fstp %st(1) ret END(__ieee754_log10l) + + +ENTRY(__log10l_finite) + fldlg2 // log10(2) + fldt 8(%rsp) // x : log10(2) + fld %st // x : x : log10(2) +4: fsubl MO(one) // x-1 : x : log10(2) + fld %st // x-1 : x-1 : x : log10(2) + fabs // |x-1| : x-1 : x : log10(2) + fcompl MO(limit) // x-1 : x : log10(2) + fnstsw // x-1 : x : log10(2) + andb $0x45, %ah + jz 2b + fstp %st(1) // x-1 : log10(2) + fyl2xp1 // log10(x) + ret +END(__log10l_finite) |