Date: Wed, 11 Oct 2006 13:22:57 -0400 From: Mikhail Teterin <mi+mx@aldan.algebra.com> To: stable@freebsd.org Cc: gerald@freebsd.org Subject: Bug in 6.x' C++ compiler Message-ID: <200610111322.57735.mi%2Bmx@aldan.algebra.com>
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GCC would not fix the bug described in http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29390 because the compiler is of an unsupported version (they only support 4.x now). Yet, the problem is rather real and hits when the devel/icu port is built with low optimization (-O1 or -O0). Any chance, someone with interest in GCC internals and FreeBSD can find the fix? Simply compiling the loctest.ii, that is attached to the above bugzilla report, is enough to reproduce the problem. Compiling with `-march=pentium4' triggers the bug -- a bogus symbol is inserted: % c++ -O0 -g -c -pipe -march=pentium4 loctest.ii % nm locate.o | fgrep .LC U .LC786 Compiling without the -march (or with -O2) does not insert the bogus symbol: % c++ -O2 -g -c -pipe -march=pentium4 loctest.ii % nm loctest.o | fgrep .LC % c++ -O0 -g -c -pipe loctest.ii % nm loctest.o | fgrep .LC % I'm seeing this with both 3.4.4 and 3.4.6 versions of GCC... Thanks! -mi
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