diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/i386/fpu/e_log.S | 11 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/e_logf.S | 11 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/e_logl.S | 11 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/e_log10l.S | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/e_log2l.S | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/e_logl.S | 12 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/s_log1pl.S | 5 |
7 files changed, 50 insertions, 10 deletions
diff --git a/sysdeps/i386/fpu/e_log.S b/sysdeps/i386/fpu/e_log.S index 5604e638f5..ce55b72292 100644 --- a/sysdeps/i386/fpu/e_log.S +++ b/sysdeps/i386/fpu/e_log.S @@ -36,11 +36,15 @@ limit: .double 0.29 ENTRY(__ieee754_log) fldln2 // log(2) fldl 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) @@ -54,4 +58,9 @@ ENTRY(__ieee754_log) 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_log) diff --git a/sysdeps/i386/fpu/e_logf.S b/sysdeps/i386/fpu/e_logf.S index 128bb2754c..cd4538b594 100644 --- a/sysdeps/i386/fpu/e_logf.S +++ b/sysdeps/i386/fpu/e_logf.S @@ -37,11 +37,15 @@ limit: .double 0.29 ENTRY(__ieee754_logf) fldln2 // log(2) flds 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_logf) 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_logf) 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) diff --git a/sysdeps/x86_64/fpu/e_log10l.S b/sysdeps/x86_64/fpu/e_log10l.S index b4343bef45..633234b744 100644 --- a/sysdeps/x86_64/fpu/e_log10l.S +++ b/sysdeps/x86_64/fpu/e_log10l.S @@ -42,7 +42,7 @@ ENTRY(__ieee754_log10l) fxam fnstsw fld %st // x : x : log10(2) - andb $1,%ah + testb $1, %ah jnz 3f // in case x is NaN or ħInf 4: fsubl MO(one) // x-1 : x : log10(2) fld %st // x-1 : x-1 : x : log10(2) @@ -59,7 +59,8 @@ ENTRY(__ieee754_log10l) fyl2x // log10(x) ret -3: jp 4b // in case x is ħInf +3: testb $4, %ah + jnz 4b // in case x is ħInf fstp %st(1) fstp %st(1) ret diff --git a/sysdeps/x86_64/fpu/e_log2l.S b/sysdeps/x86_64/fpu/e_log2l.S index 7a89b94d9f..f04d30a05a 100644 --- a/sysdeps/x86_64/fpu/e_log2l.S +++ b/sysdeps/x86_64/fpu/e_log2l.S @@ -39,7 +39,7 @@ ENTRY(__ieee754_log2l) fxam fnstsw fld %st // x : x : 1 - andb $1,%ah + testb $1, %ah jnz 3f // in case x is NaN or ħInf 4: fsub %st(2), %st // x-1 : x : 1 fld %st // x-1 : x-1 : x : 1 @@ -56,7 +56,8 @@ ENTRY(__ieee754_log2l) fyl2x // log(x) ret -3: jp 4b // in case x is ħInf +3: testb $4, %ah + jnz 4b // in case x is ħInf fstp %st(1) fstp %st(1) ret diff --git a/sysdeps/x86_64/fpu/e_logl.S b/sysdeps/x86_64/fpu/e_logl.S index a0bed663c8..2ba91eedfd 100644 --- a/sysdeps/x86_64/fpu/e_logl.S +++ b/sysdeps/x86_64/fpu/e_logl.S @@ -38,8 +38,12 @@ limit: .double 0.29 ENTRY(__ieee754_logl) fldln2 // log(2) fldt 8(%rsp) // x : log(2) + fxam + fnstsw fld %st // x : x : log(2) - fsubl MO(one) // x-1 : x : log(2) + testb $1, %ah + jnz 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) @@ -53,4 +57,10 @@ ENTRY(__ieee754_logl) 2: fstp %st(0) // x : log(2) fyl2x // log(x) ret + +3: testb $4, %ah + jnz 4b // in case x is +-Inf + fstp %st(1) + fstp %st(1) + ret END (__ieee754_logl) diff --git a/sysdeps/x86_64/fpu/s_log1pl.S b/sysdeps/x86_64/fpu/s_log1pl.S index 7fbd0e5aaa..ac2bd22a4f 100644 --- a/sysdeps/x86_64/fpu/s_log1pl.S +++ b/sysdeps/x86_64/fpu/s_log1pl.S @@ -45,7 +45,7 @@ ENTRY(__log1pl) fxam fnstsw fld %st - andb $1,%ah + testb $1, %ah jnz 3f // in case x is NaN or ħInf 4: fabs @@ -62,7 +62,8 @@ ENTRY(__log1pl) 2: fyl2xp1 ret -3: jp 4b // in case x is ħInf +3: testb $4, %ah + jnz 4b // in case x is ħInf fstp %st(1) fstp %st(1) ret |