Testcase is reduced from ssa-ccp.c from gcc from specCPU2006. reg...@john-home:~/volatile/bugs/tmp323$ current-gcc -v Using built-in specs. COLLECT_GCC=current-gcc COLLECT_LTO_WRAPPER=/home/regehr/z/compiler-install/gcc-r161813-install/libexec/gcc/i686-pc-linux-gnu/4.6.0/lto-wrapper Target: i686-pc-linux-gnu Configured with: ../configure --with-libelf=/usr/local --enable-lto --prefix=/home/regehr/z/compiler-install/gcc-r161813-install --program-prefix=r161813- --enable-languages=c,c++ Thread model: posix gcc version 4.6.0 20100704 (experimental) (GCC)
reg...@john-home:~/volatile/bugs/tmp323$ current-gcc -O3 small.c small.c: In function defs_to_undefined.isra.0: small.c:83:1: error: definition in block 7 follows the use for SSA_NAME: pretmp.26_24 in statement: pretmp.28_4 = (struct rtx_def *) pretmp.26_24; small.c:83:1: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. -- Summary: internal compiler error: verify_ssa failed Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: regehr at cs dot utah dot edu GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44823
