Seen using r139610 on Ubuntu Feisty. [EMAIL PROTECTED] tmp13]$ current-gcc -O2 -w small.c
small.c: In function func_77: small.c:33: internal compiler error: in simplify_subreg, at simplify-rtx.c:4957 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. [EMAIL PROTECTED] tmp13]$ current-gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../configure --program-prefix=current- --enable-languages=c,c++ --prefix=/home/regehr : (reconfigured) ../configure --program-prefix=current- --enable-languages=c,c++ --prefix=/home/regehr Thread model: posix gcc version 4.4.0 20080826 (experimental) (GCC) [EMAIL PROTECTED] tmp13]$ cat small.c typedef signed char int8_t; typedef short int int16_t; typedef int int32_t; __extension__ typedef long long int int64_t; typedef unsigned short int uint16_t; typedef unsigned int uint32_t; static inline unsigned int lshift_u_s (unsigned int left, int right) { if ((right) || (right >= sizeof (unsigned int) * 8) || (left > (4294967295U >> right))) return left; } static inline unsigned long int div_rhs (long int rhs) { if (rhs == 0) return 1; return rhs; } uint32_t g_230; int8_t g_294; uint16_t g_316; uint32_t g_334; int32_t g_375; int64_t g_380; int32_t func_99 (int16_t p_100, int32_t p_101, int32_t p_102, int32_t p_103, int64_t p_105, int32_t p_106, int32_t p_107, int16_t p_108, int16_t p_109); int32_t func_77 (int64_t p_79) { int16_t l_397; if (mod_rhs (p_79)) p_79 = 1; else for (p_79 = 0; 0; p_79 += 1) { } if (lshift_s_s (1, func_112 (2L, (lshift_u_s (g_334, p_79))))) { int8_t l_384; int64_t l_414; if (lshift_u_s (g_375, 1)) { func_23 (func_99 (1, 1, 1, 1, g_230, p_79, 1, g_334, 1), 1); for (p_79 = 0; 0; ++p_79) { } } if (div_rhs (func_82 (1, 1, g_380, 1, l_397, 1, 1))) func_99 ((func_82 (1, g_334, g_294, func_112 (1, (p_79 & 1)), g_316, 1, 1)), 1, (0xFBA25CA382A8CA74LL), l_384, l_414, 0L, 1, 1, 1); } } [EMAIL PROTECTED] tmp13]$ -- Summary: ice in simplify_subreg, at simplify-rtx.c:4957 Product: gcc Version: 4.4.0 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=37258