the recent gcc-4.5-branch produces broken libkhtml.so.5.4.0 from kdelibs-4.4.3. afaics it produces different/broken binaries for khtml/css/parser.cpp and khtml/svg/SVGGradientElement.cpp.
finally we get a nice GPF during knode/kmail/konqueror startup: [KCrash Handler] #5 memcpy () at ../sysdeps/x86_64/memcpy.S:78 #6 0x00007f546e63fc5e in QString::QString(QChar const*, int) () from /usr/lib64/libQtCore.so.4 #7 0x00007f5469f70e2e in qString (ps=<value optimized out>) at /usr/src/debug/kdelibs-4.4.3/khtml/css/cssparser.h:84 #8 DOM::CSSParser::parseValue (ps=<value optimized out>) at /usr/src/debug/kdelibs-4.4.3/khtml/css/cssparser.cpp:518 #9 0x00007f5469f95075 in cssyyparse (parser=0x7fff08c22820) at /usr/src/debug/kdelibs-4.4.3/khtml/css/parser.cpp:2969 #10 0x00007f5469f67d00 in DOM::CSSParser::runParser (this=0x7fff08c22820) at /usr/src/debug/kdelibs-4.4.3/khtml/css/cssparser.cpp:151 (...) with svn-bisect i've identified the first affected revision: Author: jamborm Date: Wed Apr 28 13:09:56 2010 New Revision: 158826 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158826 Log: 2010-04-28 Martin Jambor <mjam...@suse.cz> PR tree-optimization/43846 * tree-sra.c (struct access): New flag grp_assignment_read. (build_accesses_from_assign): Set grp_assignment_read. (sort_and_splice_var_accesses): Propagate grp_assignment_read. (enum mark_read_status): New type. (analyze_access_subtree): Propagate grp_assignment_read, create accesses also if both direct_read and root->grp_assignment_read. * testsuite/gcc.dg/tree-ssa/sra-10.c: New test. -- Summary: possible SRA wrong-code generation. Product: gcc Version: 4.5.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pluto at agmk dot net GCC build triplet: x86_64-gnu-linux GCC host triplet: x86_64-gnu-linux GCC target triplet: x86_64-gnu-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44258