From 8c010e2f7135902b6dc90f0577573dacbb54cde9 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 8 Jun 2016 23:11:42 +0000 Subject: Fix i386/x86_64 log1pl (sNaN) (bug 20229). The i386/x86_64 versions of log1pl 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 #20229] * sysdeps/i386/fpu/s_log1pl.S (__log1pl): Add NaN input to itself. * sysdeps/x86_64/fpu/s_log1pl.S (__log1pl): Likewise. * math/libm-test.inc (log1p_test_data): Add sNaN tests. --- sysdeps/x86_64/fpu/s_log1pl.S | 1 + 1 file changed, 1 insertion(+) (limited to 'sysdeps/x86_64/fpu/s_log1pl.S') diff --git a/sysdeps/x86_64/fpu/s_log1pl.S b/sysdeps/x86_64/fpu/s_log1pl.S index e83f64d3c0..947e5e4552 100644 --- a/sysdeps/x86_64/fpu/s_log1pl.S +++ b/sysdeps/x86_64/fpu/s_log1pl.S @@ -68,6 +68,7 @@ ENTRY(__log1pl) jnz 4b // in case x is ħInf fstp %st(1) fstp %st(1) + fadd %st(0) ret END (__log1pl) -- cgit v1.2.1