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From: "niko.lecam at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/48795] New: -Warray-bounds false positive Date: Wed, 27 Apr 2011 23:41:00 -0000 [thread overview] Message-ID: <bug-48795-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48795 Summary: -Warray-bounds false positive Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned@gcc.gnu.org ReportedBy: niko.lecam@gmail.com $ gcc -v Utilisation des specs internes. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configuré avec: /build/src/gcc-4.6-20110415/configure --prefix=/usr --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/ --enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared --enable-threads=posix --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --enable-gnu-unique-object --enable-linker-build-id --with-ppl --enable-cloog-backend=isl --enable-lto --enable-gold --enable-ld=default --enable-plugin --with-plugin-ld=ld.gold --enable-multilib --disable-libstdcxx-pch --enable-checking=release Modèle de thread: posix gcc version 4.6.0 20110415 (prerelease) (GCC) $ cat t.c /* testcase (derived from wine) */ typedef struct { int len; char data[1]; } rec; int p(rec *r, int len); int f (char prm1, char prm2) { char buf[10]; rec *r1 = (rec *)&buf; r1->len = 10; r1->data[0] = prm1; r1->data[1] = prm2; return p(r1, r1->len); } $ gcc -S -O2 -Wall t.c -save-temps t.c: In function ‘f’: t.c:19:11: attention : array subscript is above array bounds [-Warray-bounds]
next reply other threads:[~2011-04-27 23:41 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-04-27 23:41 niko.lecam at gmail dot com [this message] 2011-04-27 23:43 ` [Bug tree-optimization/48795] " niko.lecam at gmail dot com 2011-05-01 7:29 ` d.g.gorbachev at gmail dot com 2011-05-01 10:27 ` niko.lecam at gmail dot com 2011-07-23 22:57 ` pinskia at gcc dot gnu.org 2011-07-24 21:04 ` pinskia at gcc dot gnu.org
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