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Make check failure with gcc-4.1 on PPC
- From: Steve Munroe <sjmunroe at us dot ibm dot com>
- To: libc-alpha at sources dot redhat dot com
- Date: Wed, 28 Sep 2005 15:04:29 -0500
- Subject: Make check failure with gcc-4.1 on PPC
- Reply-to: sjmunroe at vnet dot ibm dot com
It seems that gcc-4.1 is getting getting more agressive using the
powerpc fused-multiply-add (fmadd) which impacts the code gen (and
rounding) for the bessel functions y1() and yn(). This causes
math/test-float and math/test-double to report failures. This failure
occurs for both powerpc32 and powerpc64.
I reported this in bugzilla # 1384
<http://sources.redhat.com/bugzilla/show_bug.cgi?id=1384> and provided a
patch to libm-test-ulps as an attachment. The patch allows make check to
pass with either gcc-3.4 or gcc-4.1.