------- Comment #4 from regehr at cs dot utah dot edu 2010-06-28 05:55 ------- This same ICE also happens w/o -fprofile-generate:
reg...@john-home:~/volatile/bugs/tmp318$ current-gcc -v Using built-in specs. COLLECT_GCC=current-gcc COLLECT_LTO_WRAPPER=/home/regehr/z/compiler-install/gcc-r161425-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-r161425-install --program-prefix=r161425- --enable-languages=c,c++ Thread model: posix gcc version 4.6.0 20100626 (experimental) (GCC) reg...@john-home:~/volatile/bugs/tmp318$ current-gcc -O2 small.c small.c: In function func_72: small.c:24:1: internal compiler error: in tree_nrv, at tree-nrv.c:155 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. reg...@john-home:~/volatile/bugs/tmp318$ cat small.c typedef int int32_t; typedef unsigned char uint8_t; struct S0 { uint8_t f0; }; struct S0 *g_18[7][5][1][1] = { }; struct S0 **g_17 = &g_18[0][3][0][0]; int32_t g_86; struct S0 func_72 (uint8_t p_73, struct S0 p_74); void int326 (struct S0 **p_67, int32_t p_68, int32_t * *const p_69, struct S0 *p_70) { struct S0 l_95 = { -1L }; func_72 (1L, func_72 (0, l_95)); } struct S0 func_72 (uint8_t p_73, struct S0 p_74) { int32_t *l_85 = &g_86; if (*l_85) lbl_94:*l_85 ^= 0; if (g_86) goto lbl_94; return **g_17; } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44687
