[reg...@bethe tmp601]$ current-gcc -v Using built-in specs. COLLECT_GCC=current-gcc COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r159144-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-r159144-install --program-prefix=r159144- --enable-languages=c,c++ Thread model: posix gcc version 4.6.0 20100507 (experimental) (GCC)
[reg...@bethe tmp601]$ current-gcc -O2 -c small.c small.c: In function 'func': small.c:14:1: error: SSA name in freelist but still referenced pretmp.6_10 small.c:24:7: note: in statement g_54.1_5 = pretmp.6_10; small.c:14:1: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. [reg...@bethe tmp601]$ cat small.c typedef int int32_t; typedef unsigned int uint32_t; static uint32_t safe_sub_func_uint32_t_u_u (uint32_t ui1, uint32_t ui2) { return ui1 - ui2; } int32_t l_105[7]; int32_t g_4; int32_t *g_54 = &g_4; int32_t * func (int32_t p_73, int32_t * p_74, int32_t p_75, int32_t * *p_76, int32_t * *p_77) { lbl_110:for (g_4 = 0; g_4; g_4 = 1) { } for (p_75 = -28; p_75; p_75 = safe_sub_func_uint32_t_u_u (p_75, 1)) { if (g_4) goto lbl_110; *g_54 = 0; } return &l_105[5]; } -- Summary: error: SSA name in freelist but still referenced 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=44030