/src/gcc-4.5.0/libgcc/../gcc/unwind-dw2.c: In function 'uw_update_context_1': /src/gcc-4.5.0/libgcc/../gcc/unwind-dw2.c:1378:1: error: unrecognizable insn: (insn 372 371 373 42 /src/gcc-4.5.0/libgcc/../gcc/unwind-dw2.c:241 (set (reg:DI 457) (plus:SI (subreg/s:SI (reg:DI 183 [ ivtmp___789 ]) 0) (const_int 312 [0x138]))) -1 (nil)) /src/gcc-4.5.0/libgcc/../gcc/unwind-dw2.c:1378:1: internal compiler error: in extract_insn, at recog.c:2103 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions.
reduced case: struct { unsigned a; unsigned short b[6]; } *c; void F1(void) { unsigned i; for (i = 0; i < 6; ++i) c->b[i] = c->b[0]; } jbook2:libgcc jay$ alpha-dec-vms-gcc -O2 -v -c 1.c Using built-in specs. COLLECT_GCC=alpha-dec-vms-gcc COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/alpha-dec-vms/4_5_0/lto-wrapper Target: alpha-dec-vms Configured with: /src/gcc-4.5.0/configure -target=alpha-dec-vms -disable-shared -disable-multilib -disable-werror -enable-target-optspace -disable-nls -verbose Thread model: single gcc version 4.5.0 (GCC) COLLECT_GCC_OPTIONS='-O2' '-v' '-c' /usr/local/libexec/gcc/alpha-dec-vms/4_5_0/cc1 -quiet -v 1.c -quiet -dumpbase 1.c -auxbase 1 -O2 -version -o /var/folders/QG/QGSTvYqCGfSGxXo0rUMOX++++TI/-Tmp-//cceivbQS.s GNU C (GCC) version 4.5.0 (OpenVMS/Alpha) compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/usr/local/lib/gcc/alpha-dec-vms/4_5_0/../../../../alpha-dec-vms/sys-include" #include "..." search starts here: #include <...> search starts here: /usr/local/lib/gcc/alpha-dec-vms/4_5_0/include /usr/local/lib/gcc/alpha-dec-vms/4_5_0/include-fixed /usr/local/lib/gcc/alpha-dec-vms/4_5_0/../../../../alpha-dec-vms/include End of search list. GNU C (GCC) version 4.5.0 (OpenVMS/Alpha) compiled by GNU C version 4.0.1 (Apple Inc. build 5493), GMP version 4.3.2, MPFR version 2.4.2, MPC version 0.8.1 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 4534e0034debe97df9f8a4e8952a585a 1.c: In function 'F1': 1.c:11:1: error: unrecognizable insn: (insn 58 57 59 4 1.c:10 (set (reg:DI 122) (plus:SI (subreg/s:SI (reg:DI 115 [ ivtmp___14 ]) 0) (const_int 4 [0x4]))) -1 (nil)) 1.c:11:1: internal compiler error: in extract_insn, at recog.c:2103 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. -- Summary: alpha-dec-vms internal error compiling unwind-dw2.c Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jay dot krell at cornell dot edu GCC target triplet: alpha-dec-vms http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44274