I found that following program exits with 1 instead of 0. % cat z.c int f(int n) { if (-1073741824 <= n && n <= 1073741823) return 1; return 0; }
int main() { return f(1073741824); } % /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/gcc -v -O z.c Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../../gcc/configure --prefix=/home/akr/ruby/chkbuild/tmp/build/gcc-trunk/20050712T134449 --enable-languages=c Thread model: posix gcc version 4.1.0 20050712 (experimental) /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../libexec/gcc/i686-pc-linux-gnu/4.1.0/cc1 -quiet -v -iprefix /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0/ z.c -quiet -dumpbase z.c -mtune=pentiumpro -auxbase z -O -version -o /tmp/cc3anyqv.s ignoring nonexistent directory "/home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0/../../../../i686-pc-linux-gnu/include" ignoring duplicate directory "/home/akr/ruby/chkbuild/tmp/build/gcc-trunk/20050712T134449/lib/gcc/i686-pc-linux-gnu/4.1.0/include" ignoring nonexistent directory "/home/akr/ruby/chkbuild/tmp/build/gcc-trunk/20050712T134449/lib/gcc/i686-pc-linux-gnu/4.1.0/../../../../i686-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0/include /usr/local/include /home/akr/ruby/chkbuild/tmp/build/gcc-trunk/20050712T134449/include /usr/include End of search list. GNU C version 4.1.0 20050712 (experimental) (i686-pc-linux-gnu) compiled by GNU C version 4.1.0 20050712 (experimental). GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: cab36206423b633931a3bd43d355747c as -V -Qy -o /tmp/ccUCeuxU.o /tmp/cc3anyqv.s GNU assembler version 2.15 (i386-linux) using BFD version 2.15 /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../libexec/gcc/i686-pc-linux-gnu/4.1.0/collect2 --eh-frame-hdr -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o /usr/lib/crti.o /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0/crtbegin.o -L/home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0 -L/home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc -L/home/akr/ruby/chkbuild/tmp/build/gcc-trunk/20050712T134449/lib/gcc/i686-pc-linux-gnu/4.1.0 -L/home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0/../../.. -L/home/akr/ruby/chkbuild/tmp/build/gcc-trunk/20050712T134449/lib/gcc/i686-pc-linux-gnu/4.1.0/../../.. /tmp/ccUCeuxU.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/../lib/gcc/i686-pc-linux-gnu/4.1.0/crtend.o /usr/lib/crtn.o % ./a.out zsh: exit 1 ./a.out It exists with 0 if optimization is disabled. % /home/src/chkbuild-tmp/build/gcc-trunk/20050712T134449/bin/gcc z.c % ./a.out -- Summary: -1073741824 <= n && n <= 1073741823 is true where n is 1073741824 Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: akr at m17n dot org CC: gcc-bugs at gcc dot gnu dot org GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22429