diff options
Diffstat (limited to 'sysdeps/i386/fpu/e_logl.S')
| -rw-r--r-- | sysdeps/i386/fpu/e_logl.S | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/e_logl.S b/sysdeps/i386/fpu/e_logl.S index 5023d3012f..551dcf1e46 100644 --- a/sysdeps/i386/fpu/e_logl.S +++ b/sysdeps/i386/fpu/e_logl.S @@ -37,11 +37,15 @@ limit: .double 0.29 ENTRY(__ieee754_logl) fldln2 // log(2) fldt 4(%esp) // x : log(2) + fxam + fnstsw #ifdef PIC LOAD_PIC_REG (dx) #endif fld %st // x : x : log(2) - fsubl MO(one) // x-1 : x : log(2) + sahf + jc 3f // in case x is NaN or +-Inf +4: fsubl MO(one) // x-1 : x : log(2) fld %st // x-1 : x-1 : x : log(2) fabs // |x-1| : x-1 : x : log(2) fcompl MO(limit) // x-1 : x : log(2) @@ -55,4 +59,9 @@ ENTRY(__ieee754_logl) 2: fstp %st(0) // x : log(2) fyl2x // log(x) ret + +3: jp 4b // in case x is +-Inf + fstp %st(1) + fstp %st(1) + ret END (__ieee754_logl) |