------- Additional Comments From Thomas dot Koenig at online dot de 2005-01-27 15:09 ------- Created an attachment (id=8084) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=8084&action=view) Failing C source code
This is indeed a target bug. I've attached a C source code (from the t02.original file) which works OK with -O0 and generates a segfault at -O1: $ gcc sl2-error.c $ ./a.out $ gcc -O1 sl2-error.c $ ./a.out Segmentation fault $ gcc -v Using built-in specs. Configured with: ../gcc-4.0-20050123/configure --prefix=/home/zfkts --enable-languages=c,f95 Thread model: posix gcc version 4.0.0 20050123 (experimental) $ gcc -dumpmachine ia64-unknown-linux-gnu This is a regression from 3.2.3: $ /usr/bin/gcc -O3 sl2-error.c && ./a.out $ /usr/bin/gcc -O1 sl2-error.c && ./a.out $ /usr/bin/gcc -O0 sl2-error.c && ./a.out $ /usr/bin/gcc -v Reading specs from /usr/lib/gcc-lib/ia64-redhat-linux/3.2.3/specs Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --host=ia64-redhat-linux Thread model: posix gcc version 3.2.3 20030502 (Red Hat Linux 3.2.3-49) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18977
