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Add more tests of acos [committed]
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Wed, 25 Mar 2015 00:30:56 +0000
- Subject: Add more tests of acos [committed]
- Authentication-results: sourceware.org; auth=none
This patch adds some randomly-generated tests of acos 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.)
2015-03-25 Joseph Myers <joseph@codesourcery.com>
* math/auto-libm-test-in: Add more tests of acos.
* 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 1da8ec1..070298d 100644
--- a/math/auto-libm-test-in
+++ b/math/auto-libm-test-in
@@ -64,6 +64,12 @@ acos -0x1p-65
acos -0x1p-85
acos -0x1p-105
acos -0x1p-125
+acos -0x2.0089a4p-4
+acos 0xf.04aeep-4
+acos 0x5.dd258006121b8p-4
+acos -0x2.35f051e70dbc4p-4
+acos 0xe.9a5c0d7fabb9aa1p-4
+acos 0xe.17513589de79b75p-4
acos min
acos -min
acos min_subnorm
diff --git a/sysdeps/i386/fpu/libm-test-ulps b/sysdeps/i386/fpu/libm-test-ulps
index 76eaea4..3eb9d82 100644
--- a/sysdeps/i386/fpu/libm-test-ulps
+++ b/sysdeps/i386/fpu/libm-test-ulps
@@ -6,16 +6,16 @@ ildouble: 1
ldouble: 1
Function: "acos_downward":
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
Function: "acos_towardzero":
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
Function: "acos_upward":
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
Function: "acosh":
ildouble: 1
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 488ff36..f221ebc 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -2,26 +2,34 @@
# Maximal error of functions:
Function: "acos":
+float: 1
+ifloat: 1
ildouble: 1
ldouble: 1
Function: "acos_downward":
+double: 1
float: 1
+idouble: 1
ifloat: 1
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
Function: "acos_towardzero":
+double: 1
float: 1
+idouble: 1
ifloat: 1
-ildouble: 1
-ldouble: 1
+ildouble: 2
+ldouble: 2
Function: "acos_upward":
double: 1
+float: 1
idouble: 1
-ildouble: 1
-ldouble: 1
+ifloat: 1
+ildouble: 2
+ldouble: 2
Function: "acosh":
double: 1
--
Joseph S. Myers
joseph@codesourcery.com