From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22561 invoked by alias); 8 Jun 2014 14:46:18 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 22512 invoked by uid 48); 8 Jun 2014 14:46:14 -0000 From: "bernd.edlinger at hotmail dot de" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/61047] [4.9/4.10 Regression] wrong code at -O1 on x86_64-linux Date: Sun, 08 Jun 2014 14:46:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Version: 4.10.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: bernd.edlinger at hotmail dot de X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.9.1 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-06/txt/msg00568.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61047 --- Comment #5 from Bernd Edlinger --- I tried a boot-strap with this patch, and there are almost no false positives, except a few varargs functions. Most interesting are these cases: /home/ed/gnu/gcc-build/./prev-gcc/xg++ -B/home/ed/gnu/gcc-build/./prev-gcc/ -B/home/ed/gnu/install/x86_64-unknown-linux-gnu/bin/ -nostdinc++ -B/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -B/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -I/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include -I/home/ed/gnu/gcc-trunk/libstdc++-v3/libsupc++ -L/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -L/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -c -g -O2 -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-trunk/gcc -I../../gcc-trunk/gcc/. -I../../gcc-trunk/gcc/../include -I../../gcc-trunk/gcc/../libcpp/include -I/home/ed/gnu/gcc-build/./gmp -I/home/ed/gnu/gcc-trunk/gmp -I/home/ed/gnu/gcc-build/./mpfr -I/home/ed/gnu/gcc-trunk/mpfr -I/home/ed/gnu/gcc-trunk/mpc/src -I../../gcc-trunk/gcc/../libdecnumber -I../../gcc-trunk/gcc/../libdecnumber/bid -I../libdecnumber -I../../gcc-trunk/gcc/../libbacktrace -DCLOOG_INT_GMP -I/home/ed/gnu/gcc-build/./cloog/include -I/home/ed/gnu/gcc-trunk/cloog/include -I../gcc-trunk/cloog/include -I/home/ed/gnu/gcc-build/./isl/include -I/home/ed/gnu/gcc-trunk/isl/include -o expmed.o -MT expmed.o -MMD -MP -MF ./.deps/expmed.TPo ../../gcc-trunk/gcc/expmed.c *** sp can trap: offset=34359738424, size=8, low_bound=-144, high_bound=272 *** sp can trap: offset=34359738456, size=8, low_bound=-144, high_bound=272 -- /home/ed/gnu/gcc-build/./prev-gcc/xg++ -B/home/ed/gnu/gcc-build/./prev-gcc/ -B/home/ed/gnu/install/x86_64-unknown-linux-gnu/bin/ -nostdinc++ -B/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -B/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -I/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include -I/home/ed/gnu/gcc-trunk/libstdc++-v3/libsupc++ -L/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -L/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -c -g -O2 -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-trunk/gcc -I../../gcc-trunk/gcc/. -I../../gcc-trunk/gcc/../include -I../../gcc-trunk/gcc/../libcpp/include -I/home/ed/gnu/gcc-build/./gmp -I/home/ed/gnu/gcc-trunk/gmp -I/home/ed/gnu/gcc-build/./mpfr -I/home/ed/gnu/gcc-trunk/mpfr -I/home/ed/gnu/gcc-trunk/mpc/src -I../../gcc-trunk/gcc/../libdecnumber -I../../gcc-trunk/gcc/../libdecnumber/bid -I../libdecnumber -I../../gcc-trunk/gcc/../libbacktrace -DCLOOG_INT_GMP -I/home/ed/gnu/gcc-build/./cloog/include -I/home/ed/gnu/gcc-trunk/cloog/include -I../gcc-trunk/cloog/include -I/home/ed/gnu/gcc-build/./isl/include -I/home/ed/gnu/gcc-trunk/isl/include -o fixed-value.o -MT fixed-value.o -MMD -MP -MF ./.deps/fixed-value.TPo ../../gcc-trunk/gcc/fixed-value.c *** sp can trap: offset=34359738472, size=8, low_bound=-144, high_bound=208 *** sp can trap: offset=34359738488, size=8, low_bound=-144, high_bound=240 /home/ed/gnu/gcc-build/./prev-gcc/xg++ -B/home/ed/gnu/gcc-build/./prev-gcc/ -B/home/ed/gnu/install/x86_64-unknown-linux-gnu/bin/ -nostdinc++ -B/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -B/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -I/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu -I/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include -I/home/ed/gnu/gcc-trunk/libstdc++-v3/libsupc++ -L/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs -L/home/ed/gnu/gcc-build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -c -g -O2 -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc-trunk/gcc -I../../gcc-trunk/gcc/. -I../../gcc-trunk/gcc/../include -I../../gcc-trunk/gcc/../libcpp/include -I/home/ed/gnu/gcc-build/./gmp -I/home/ed/gnu/gcc-trunk/gmp -I/home/ed/gnu/gcc-build/./mpfr -I/home/ed/gnu/gcc-trunk/mpfr -I/home/ed/gnu/gcc-trunk/mpc/src -I../../gcc-trunk/gcc/../libdecnumber -I../../gcc-trunk/gcc/../libdecnumber/bid -I../libdecnumber -I../../gcc-trunk/gcc/../libbacktrace -DCLOOG_INT_GMP -I/home/ed/gnu/gcc-build/./cloog/include -I/home/ed/gnu/gcc-trunk/cloog/include -I../gcc-trunk/cloog/include -I/home/ed/gnu/gcc-build/./isl/include -I/home/ed/gnu/gcc-trunk/isl/include -o fold-const.o -MT fold-const.o -MMD -MP -MF ./.deps/fold-const.TPo ../../gcc-trunk/gcc/fold-const.c *** hard_fp can trap: offset=34359738280, size=8, low_bound=-368, high_bound=32 -- they were not happening with the 4.9 branch.