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Add more tests of erf, erfc [committed]
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Fri, 1 May 2015 17:50:52 +0000
- Subject: Add more tests of erf, erfc [committed]
- Authentication-results: sourceware.org; auth=none
This patch adds some randomly-generated tests of erf and erfc that are
observed to increase ulps on x86_64.
Tested for x86_64 and x86 and ulps updated accordingly. Committed.
(auto-libm-test-out diffs omitted below.)
2015-05-01 Joseph Myers <joseph@codesourcery.com>
* math/auto-libm-test-in: Add more tests of erf and erfc.
* math/auto-libm-test-out: Regenerated.
* sysdeps/i386/fpu/libm-test-ulps: Update.
* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in
index 9c2abde..e60a68d 100644
--- a/math/auto-libm-test-in
+++ b/math/auto-libm-test-in
@@ -1087,6 +1087,10 @@ erf 108
erf 1000
erf max
+erf -0x1.ddaea4p+0
+erf -0x1.2b1f68p+0
+erf 0x1.44e722p+0
+
erfc 0.0
erfc -0
erfc 0.125
@@ -1111,6 +1115,16 @@ erfc 108
erfc 1000
erfc max
+erfc 0x1.8a0c64p+0
+erfc 0x1.8a0c62p+0
+erfc 0x1.64dafap+0
+erfc 0x6.88fb08p+0
+erfc 0xd.361d9p-4
+erfc 0x8.c66b44ca40038p+0
+erfc 0x2.586f1cp+0
+erfc 0xb.acb72p+0
+erfc 0xb.227499103357d84p+0
+
exp 0
exp -0
exp 1
diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps
index 7692852..4d8054f 100644
--- a/sysdeps/i386/fpu/libm-test-ulps
+++ b/sysdeps/i386/fpu/libm-test-ulps
@@ -1285,44 +1285,60 @@ ldouble: 3
Function: "erf":
double: 1
+float: 1
idouble: 1
+ifloat: 1
ildouble: 1
ldouble: 1
-Function: "erf_upward":
+Function: "erf_downward":
+double: 1
+idouble: 1
ildouble: 1
ldouble: 1
-Function: "erfc":
+Function: "erf_towardzero":
double: 1
idouble: 1
ildouble: 1
ldouble: 1
+Function: "erf_upward":
+ildouble: 1
+ldouble: 1
+
+Function: "erfc":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+ildouble: 2
+ldouble: 2
+
Function: "erfc_downward":
double: 1
float: 2
idouble: 1
ifloat: 2
-ildouble: 3
-ldouble: 3
+ildouble: 4
+ldouble: 4
Function: "erfc_towardzero":
double: 1
float: 2
idouble: 1
ifloat: 2
-ildouble: 2
-ldouble: 2
-
-Function: "erfc_upward":
-double: 1
-float: 1
-idouble: 1
-ifloat: 1
ildouble: 3
ldouble: 3
+Function: "erfc_upward":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+ildouble: 4
+ldouble: 4
+
Function: "exp10":
ildouble: 1
ldouble: 1
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 22dfe5f..2a7cc4d 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -1369,17 +1369,27 @@ ldouble: 3
Function: "erf":
double: 1
+float: 1
idouble: 1
+ifloat: 1
ildouble: 1
ldouble: 1
Function: "erf_downward":
+double: 1
float: 1
+idouble: 1
ifloat: 1
+ildouble: 1
+ldouble: 1
Function: "erf_towardzero":
+double: 1
float: 1
+idouble: 1
ifloat: 1
+ildouble: 1
+ldouble: 1
Function: "erf_upward":
float: 1
@@ -1388,37 +1398,37 @@ ildouble: 1
ldouble: 1
Function: "erfc":
-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: "erfc_downward":
-double: 1
-float: 3
-idouble: 1
-ifloat: 3
-ildouble: 3
-ldouble: 3
+double: 3
+float: 5
+idouble: 3
+ifloat: 5
+ildouble: 4
+ldouble: 4
Function: "erfc_towardzero":
-double: 1
+double: 3
float: 3
-idouble: 1
+idouble: 3
ifloat: 3
-ildouble: 2
-ldouble: 2
-
-Function: "erfc_upward":
-double: 2
-float: 2
-idouble: 2
-ifloat: 2
ildouble: 3
ldouble: 3
+Function: "erfc_upward":
+double: 4
+float: 5
+idouble: 4
+ifloat: 5
+ildouble: 4
+ldouble: 4
+
Function: "exp10":
double: 1
idouble: 1
--
Joseph S. Myers
joseph@codesourcery.com