Add more tests of log, log10, log1p, log2.

This patch adds some randomly-generated tests of log, log10, log1p and
log2 that are observed to increase ulps on x86_64.

Tested for x86_64 and x86 and ulps updated accordingly.

	* math/auto-libm-test-in: Add more tests of log, log10, log2 and
	log1p.
	* math/auto-libm-test-out: Regenerated.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.

2 files changed, 65 insertions, 61 deletions

diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps
index 91e5c637f6..ae64aae026 100644
--- a/sysdeps/i386/fpu/libm-test-ulps
+++ b/sysdeps/i386/fpu/libm-test-ulps
@@ -1604,16 +1604,16 @@ double: 1
 float: 1
 idouble: 1
 ifloat: 1
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
 
 Function: "log10_towardzero":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
 
 Function: "log10_upward":
 double: 1
@@ -1624,32 +1624,32 @@ ildouble: 1
 ldouble: 1
 
 Function: "log1p":
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
 
 Function: "log1p_downward":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
-ildouble: 2
-ldouble: 2
+ildouble: 3
+ldouble: 3
 
 Function: "log1p_towardzero":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
-ildouble: 2
-ldouble: 2
+ildouble: 3
+ldouble: 3
 
 Function: "log1p_upward":
 double: 1
 float: 1
 idouble: 1
 ifloat: 1
-ildouble: 1
-ldouble: 1
+ildouble: 3
+ldouble: 3
 
 Function: "log2":
 ildouble: 1
@@ -1676,12 +1676,12 @@ ildouble: 1
 ldouble: 1
 
 Function: "log_downward":
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
 
 Function: "log_towardzero":
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
 
 Function: "log_upward":
 ildouble: 1
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 8b4cdd4f06..f0ece1eaa2 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -1710,36 +1710,30 @@ ildouble: 1
 ldouble: 1
 
 Function: "log10_downward":
-double: 1
-float: 1
-idouble: 1
-ifloat: 1
-ildouble: 1
-ldouble: 1
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+ildouble: 2
+ldouble: 2
 
 Function: "log10_towardzero":
-double: 1
-float: 1
-idouble: 1
-ifloat: 1
-ildouble: 1
-ldouble: 1
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+ildouble: 2
+ldouble: 2
 
 Function: "log10_upward":
-double: 1
-float: 1
-idouble: 1
-ifloat: 1
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
 ildouble: 1
 ldouble: 1
 
 Function: "log1p":
-float: 1
-ifloat: 1
-ildouble: 1
-ldouble: 1
-
-Function: "log1p_downward":
 double: 1
 float: 1
 idouble: 1
@@ -1747,21 +1741,29 @@ ifloat: 1
 ildouble: 2
 ldouble: 2
 
-Function: "log1p_towardzero":
-double: 1
+Function: "log1p_downward":
+double: 2
 float: 1
-idouble: 1
+idouble: 2
 ifloat: 1
-ildouble: 2
-ldouble: 2
+ildouble: 3
+ldouble: 3
+
+Function: "log1p_towardzero":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+ildouble: 3
+ldouble: 3
 
 Function: "log1p_upward":
-double: 1
-float: 1
-idouble: 1
-ifloat: 1
-ildouble: 1
-ldouble: 1
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+ildouble: 3
+ldouble: 3
 
 Function: "log2":
 double: 1
@@ -1780,34 +1782,36 @@ ildouble: 1
 ldouble: 1
 
 Function: "log2_towardzero":
-double: 1
+double: 2
 float: 2
-idouble: 1
+idouble: 2
 ifloat: 2
 ildouble: 1
 ldouble: 1
 
 Function: "log2_upward":
 double: 3
-float: 2
+float: 3
 idouble: 3
-ifloat: 2
+ifloat: 3
 ildouble: 1
 ldouble: 1
 
 Function: "log_downward":
-float: 1
-ifloat: 1
-ildouble: 1
-ldouble: 1
+float: 2
+ifloat: 2
+ildouble: 2
+ldouble: 2
 
 Function: "log_towardzero":
-ildouble: 1
-ldouble: 1
+float: 2
+ifloat: 2
+ildouble: 2
+ldouble: 2
 
 Function: "log_upward":
-float: 1
-ifloat: 1
+float: 2
+ifloat: 2
 ildouble: 1
 ldouble: 1