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-rw-r--r--sysdeps/i386/fpu/s_log1p.S11
1 files changed, 10 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/s_log1p.S b/sysdeps/i386/fpu/s_log1p.S
index 10e8a36369..d3bc3d7251 100644
--- a/sysdeps/i386/fpu/s_log1p.S
+++ b/sysdeps/i386/fpu/s_log1p.S
@@ -36,8 +36,12 @@ ENTRY(__log1p)
addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %edx
#endif
+ fxam
+ fnstsw
fld %st
- fabs
+ sahf
+ jc 3f // in case x is NaN or ħInf
+4: fabs
#ifdef PIC
fcompl limit@GOTOFF(%edx)
#else
@@ -58,5 +62,10 @@ ENTRY(__log1p)
2: fyl2xp1
ret
+3: jp 4b // in case x is ħInf
+ fstp %st(1)
+ fstp %st(1)
+ ret
+
END (__log1p)
weak_alias (__log1p, log1p)