From: Joseph Myers <joseph@codesourcery.com>
To: <libc-alpha@sourceware.org>
Subject: Add another test of pow [committed]
Date: Fri, 01 May 2015 22:32:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.10.1505012231410.25940@digraph.polyomino.org.uk> (raw)
This patch adds a randomly-generated test of pow that is 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 another test of pow.
* math/auto-libm-test-out: Regenerated.
* sysdeps/x86_64/fpu/libm-test-ulps: Update.
diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in
index caf3c93..788c30a 100644
--- a/math/auto-libm-test-in
+++ b/math/auto-libm-test-in
@@ -2200,6 +2200,7 @@ pow 2.0 -100000.0
pow 1.0625 1.125
pow 1.5 1.03125
pow 0x1.7d1a0a6f2p+681 1.5
+pow 0x1.ce78f2p+0 -0x2.7f1f78p+4
sin 0
sin -0
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 3b342d6..ab2b0b7 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -1816,8 +1816,8 @@ ildouble: 1
ldouble: 1
Function: "pow":
-float: 1
-ifloat: 1
+float: 3
+ifloat: 3
ildouble: 1
ldouble: 1
@@ -1853,25 +1853,25 @@ ldouble: 2
Function: "pow_downward":
double: 1
-float: 1
+float: 3
idouble: 1
-ifloat: 1
+ifloat: 3
ildouble: 4
ldouble: 4
Function: "pow_towardzero":
double: 1
-float: 1
+float: 4
idouble: 1
-ifloat: 1
+ifloat: 4
ildouble: 1
ldouble: 1
Function: "pow_upward":
double: 1
-float: 1
+float: 4
idouble: 1
-ifloat: 1
+ifloat: 4
ildouble: 2
ldouble: 2
--
Joseph S. Myers
joseph@codesourcery.com
reply other threads:[~2015-05-01 22:32 UTC|newest]
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