diff options
Diffstat (limited to 'sysdeps/i386')
| -rw-r--r-- | sysdeps/i386/fpu/e_log10.S | 8 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/e_log10f.S | 8 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/e_log10l.S | 8 | ||||
| -rw-r--r-- | sysdeps/i386/fpu/libm-test-ulps | 24 |
4 files changed, 45 insertions, 3 deletions
diff --git a/sysdeps/i386/fpu/e_log10.S b/sysdeps/i386/fpu/e_log10.S index ce6a81abb6..17277084ca 100644 --- a/sysdeps/i386/fpu/e_log10.S +++ b/sysdeps/i386/fpu/e_log10.S @@ -46,7 +46,13 @@ ENTRY(__ieee754_log10) fnstsw // x-1 : x : log10(2) andb $0x45, %ah jz 2f - fstp %st(1) // x-1 : log10(2) + fxam + fnstsw + andb $0x45, %ah + cmpb $0x40, %ah + jne 5f + fabs // log10(1) is +0 in all rounding modes. +5: fstp %st(1) // x-1 : log10(2) fyl2xp1 // log10(x) ret diff --git a/sysdeps/i386/fpu/e_log10f.S b/sysdeps/i386/fpu/e_log10f.S index 8c20723555..72a3b88251 100644 --- a/sysdeps/i386/fpu/e_log10f.S +++ b/sysdeps/i386/fpu/e_log10f.S @@ -47,7 +47,13 @@ ENTRY(__ieee754_log10f) fnstsw // x-1 : x : log10(2) andb $0x45, %ah jz 2f - fstp %st(1) // x-1 : log10(2) + fxam + fnstsw + andb $0x45, %ah + cmpb $0x40, %ah + jne 5f + fabs // log10(1) is +0 in all rounding modes. +5: fstp %st(1) // x-1 : log10(2) fyl2xp1 // log10(x) ret diff --git a/sysdeps/i386/fpu/e_log10l.S b/sysdeps/i386/fpu/e_log10l.S index cde987b137..45b9c6d21d 100644 --- a/sysdeps/i386/fpu/e_log10l.S +++ b/sysdeps/i386/fpu/e_log10l.S @@ -48,7 +48,13 @@ ENTRY(__ieee754_log10l) fnstsw // x-1 : x : log10(2) andb $0x45, %ah jz 2f - fstp %st(1) // x-1 : log10(2) + fxam + fnstsw + andb $0x45, %ah + cmpb $0x40, %ah + jne 5f + fabs // log10(1) is +0 in all rounding modes. +5: fstp %st(1) // x-1 : log10(2) fyl2xp1 // log10(x) ret diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps index 946cad489b..1e89284455 100644 --- a/sysdeps/i386/fpu/libm-test-ulps +++ b/sysdeps/i386/fpu/libm-test-ulps @@ -1536,6 +1536,30 @@ Function: "log10": ildouble: 1 ldouble: 1 +Function: "log10_downward": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +ildouble: 1 +ldouble: 1 + +Function: "log10_towardzero": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +ildouble: 1 +ldouble: 1 + +Function: "log10_upward": +double: 1 +float: 1 +idouble: 1 +ifloat: 1 +ildouble: 1 +ldouble: 1 + Function: "log1p": ildouble: 1 ldouble: 1 |