From 09096b36152dca599ca781b7299d0d662ca74ce7 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 8 Jun 2016 22:59:18 +0000 Subject: Fix i386/x86_64 log10l (sNaN) (bug 20228). The i386/x86_64 versions of log10l return sNaN for sNaN input. This patch fixes them to add a NaN input to itself so that qNaN is returned in this case. Tested for x86_64 and x86. [BZ #20228] * sysdeps/i386/fpu/e_log10l.S (__ieee754_log10l): Add NaN input to itself. * sysdeps/x86_64/fpu/e_log10l.S (__ieee754_log10l): Likewise. * math/libm-test.inc (log10_test_data): Add sNaN tests. --- sysdeps/x86_64/fpu/e_log10l.S | 1 + 1 file changed, 1 insertion(+) (limited to 'sysdeps/x86_64') diff --git a/sysdeps/x86_64/fpu/e_log10l.S b/sysdeps/x86_64/fpu/e_log10l.S index 8fa61644c1..e0cb88e32e 100644 --- a/sysdeps/x86_64/fpu/e_log10l.S +++ b/sysdeps/x86_64/fpu/e_log10l.S @@ -64,6 +64,7 @@ ENTRY(__ieee754_log10l) jnz 4b // in case x is ħInf fstp %st(1) fstp %st(1) + fadd %st(0) ret END(__ieee754_log10l) -- cgit 1.4.1