From 6b2665f534dd34c20f31dc6e3540114762a8d3a8 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 15 Mar 2007 20:10:51 +0000 Subject: [BZ #3919] * math/libm-test.inc (log_test): Test -Inf and NaN. (log10_test, log1p_test, log2_test): Test -Inf. * sysdeps/i386/fpu/e_log.S (__ieee754_log): Don't raise FE_INVALID when argument is qNaN. * sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/i386/fpu/e_logf.S (__ieee754_logf): Likewise. * sysdeps/x86_64/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/x86_64/fpu/e_log10l.S (__ieee754_log10l): Replace andb $1, %ah with testb $1, %ah, don't test for parity, instead testb $4, %ah and jump if non-zero. * sysdeps/x86_64/fpu/e_log2l.S (__ieee754_log2l): Likewise. * sysdeps/x86_64/fpu/s_log1pl.S (__log1pl): Likewise. 2007-03-15 Jakub Jelinek --- sysdeps/x86_64/fpu/e_log2l.S | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'sysdeps/x86_64/fpu/e_log2l.S') 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 -- cgit 1.4.1