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* [Bug c++/58208] New: deque<std::string> 32-bit "-O3" bug
@ 2013-08-20 22:28 tammy at Cadence dot COM
  2013-08-20 22:38 ` [Bug tree-optimization/58208] " paolo.carlini at oracle dot com
                   ` (13 more replies)
  0 siblings, 14 replies; 15+ messages in thread
From: tammy at Cadence dot COM @ 2013-08-20 22:28 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58208

            Bug ID: 58208
           Summary: deque<std::string> 32-bit "-O3" bug
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tammy at Cadence dot COM

The following testcase works with gcc473, but crash with gcc481:
$ cat main.C
int main () {}

$ cat qt.C
#include <deque>
#include <string>

std::deque<std::string> l1;

$ cat build.orig
#!/bin/csh -fex

set GCCVER = /home/tammy/gcc481
setenv CXXFLAGS "-fpic -m32 -std=c++11 -O3"

rm -f libqt.so import main.o

${GCCVER}/bin/g++ -c $CXXFLAGS qt.C
${GCCVER}/bin/g++ -m32 -shared -o libqt.so qt.o
${GCCVER}/bin/g++ -c $CXXFLAGS main.C
${GCCVER}/bin/g++ -o import main.o -Wl,-rpath,${GCCVER}/lib -m32 -L. -lqt

$ ./build.orig
set GCCVER = /home/tammy/gcc481
setenv CXXFLAGS -fpic -m32 -std=c++11 -O3
rm -f libqt.so import main.o
/home/tammy/gcc481/bin/g++ -c -fpic -m32 -std=c++11 -O3 qt.C
/home/tammy/gcc481/bin/g++ -m32 -shared -o libqt.so qt.o
/home/tammy/gcc481/bin/g++ -c -fpic -m32 -std=c++11 -O3 main.C
/home/tammy/gcc481/bin/g++ -o import main.o -Wl,-rpath,/home/tammy/gcc481/lib
-m32 -L. -lqt
$ ./import
Segmentation fault
$ 

The 64-bit version works. If I change "-O3" to "-O2" or "-O3
-fno-tree-vectorize", it works also.


^ permalink raw reply	[flat|nested] 15+ messages in thread
end of thread, other threads:[~2023-06-07  2:06 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-08-20 22:28 [Bug c++/58208] New: deque<std::string> 32-bit "-O3" bug tammy at Cadence dot COM
2013-08-20 22:38 ` [Bug tree-optimization/58208] " paolo.carlini at oracle dot com
2013-08-23 22:34 ` [Bug target/58208] " tammy at Cadence dot COM
2013-08-23 23:05 ` pinskia at gcc dot gnu.org
2013-08-24 12:19 ` mikpe at it dot uu.se
2013-08-25 10:14 ` mikpe at it dot uu.se
2013-08-25 18:12 ` mikpe at it dot uu.se
2013-08-25 20:02 ` mikpe at it dot uu.se
2013-08-26  3:07 ` tammy at Cadence dot COM
2013-08-26 17:08 ` tammy at Cadence dot COM
2013-08-26 19:43 ` tammy at Cadence dot COM
2013-08-28 23:02 ` tammy at Cadence dot COM
2023-06-07  2:03 ` pinskia at gcc dot gnu.org
2023-06-07  2:05 ` pinskia at gcc dot gnu.org
2023-06-07  2:06 ` pinskia at gcc dot gnu.org

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