[reg...@gamow tmp407]$ current-gcc -c -O3 small.c small.c: In function 'int161': small.c:19:1: internal compiler error: in vect_create_epilog_for_reduction, at tree-vect-loop.c:3451 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.
[reg...@gamow tmp407]$ current-gcc -v Using built-in specs. COLLECT_GCC=current-gcc COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r158618-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../configure --with-libelf=/usr/local --enable-lto --prefix=/home/regehr/z/compiler-install/gcc-r158618-install --program-prefix=r158618- --enable-languages=c,c++ Thread model: posix gcc version 4.6.0 20100421 (experimental) (GCC) [reg...@gamow tmp407]$ cat small.c typedef short int int16_t; typedef int int32_t; typedef unsigned short int uint16_t; typedef unsigned int uint32_t; static int16_t safe_rshift_func_int16_t_s_u (int16_t left, unsigned int right) { return left || right >= 1 * 8 ? left : left >> right; } static uint32_t safe_add_func_uint32_t_u_u (uint32_t ui1, uint16_t ui2) { return ui1 + ui2; } int16_t g_4; uint32_t g_9[1]; int161 (void) { int32_t l_2; for (l_2 = -25; l_2; l_2 = safe_add_func_uint32_t_u_u (l_2, 1)) g_9[0] ^= safe_rshift_func_int16_t_s_u (g_4, 1); return 0; } -- Summary: ice in vect_create_epilog_for_reduction 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: x86_64-unknown-linux-gnu GCC host triplet: x86_64-unknown-linux-gnu GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43842