Date: Fri, 3 Dec 2010 00:05:49 +0000 (UTC) From: David Schultz <das@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r216137 - head/lib/msun Message-ID: <201012030005.oB305n9a038509@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: das Date: Fri Dec 3 00:05:49 2010 New Revision: 216137 URL: http://svn.freebsd.org/changeset/base/216137 Log: Disable gcc's built-in rint() function when compiling s_nearbyint.c. It results in incorrect optimizations that break nearbyint(). PR: 143358 Reviewed by: bde Modified: head/lib/msun/Makefile Modified: head/lib/msun/Makefile ============================================================================== --- head/lib/msun/Makefile Thu Dec 2 22:37:50 2010 (r216136) +++ head/lib/msun/Makefile Fri Dec 3 00:05:49 2010 (r216137) @@ -113,6 +113,12 @@ COMMON_SRCS:= ${COMMON_SRCS:N${i:R}.c} .endfor .endif +# Some files need certain gcc built-in functions to be disabled, since gcc's +# model of the functions bogusly assumes -fno-trapping-math. +XRINT_CFLAGS= -fno-builtin-rint -fno-builtin-rintf -fno-builtin-rintl +CFLAGS+= ${XRINT_CFLAGS} +XRINT_CFLAGS:= ${.IMPSRC:M*/s_nearbyint.c:C/^.+$/${XRINT_CFLAGS}/:C/^$//} + SRCS= ${COMMON_SRCS} ${ARCH_SRCS} INCS= fenv.h math.h
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201012030005.oB305n9a038509>