> gcc -v Using built-in specs. COLLECT_GCC=/usr/local/gcc45/bin/gcc COLLECT_LTO_WRAPPER=/usr/local/gcc45/libexec/gcc/x86_64-apple-darwin10.2.0/4.5.0/lto-wrapper Target: x86_64-apple-darwin10.2.0 Configured with: ../gcc/configure --prefix=/usr/local/gcc45 --enable-threads=posix --with-arch=core2 --with-tune=core2 --with-gmp=/sw --with-mpfr=/sw --with-ppl=/sw --with-cloog=/sw --with-libelf=/sw --disable-nls --disable-bootstrap LDFLAGS=/usr/lib/libiconv.dylib --enable-languages=c,c++,lto,objc,obj-c++ Thread model: posix gcc version 4.5.0 20091129 (experimental) (GCC)
Using r154734. With attached source: > gcc -O3 -floop-interchange -S graphite_crash.i graphite_crash.i: In function 'border_mirror_480': graphite_crash.i:17:6: 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. It doesn't happen reliably to me with -v -Q, so I can't check with gdb. Valgrind gives: ==12758== Invalid read of size 8 ==12758== at 0x1004AE4A3: lst_do_interchange_1 (graphite-interchange.c:709) ==12758== by 0x1004AE525: lst_do_interchange (graphite-interchange.c:730) ==12758== by 0x1004AE58A: lst_do_interchange (graphite-interchange.c:734) ==12758== by 0x1004AE5CA: scop_do_interchange (graphite-interchange.c:748) ==12758== by 0x1004AF4C7: apply_poly_transforms (graphite-poly.c:260) ==12758== by 0x1004A01A1: graphite_transform_loops (graphite.c:276) ==12758== by 0x100736B09: graphite_transforms (tree-ssa-loop.c:300) ==12758== by 0x10057D522: execute_one_pass (passes.c:1522) ==12758== by 0x10057D7CC: execute_pass_list (passes.c:1577) ==12758== by 0x10057D7DE: execute_pass_list (passes.c:1578) ==12758== by 0x10057D7DE: execute_pass_list (passes.c:1578) ==12758== by 0x1006AAA80: tree_rest_of_compilation (tree-optimize.c:408) ==12758== Address 0x141c25210 is 16 bytes inside a block of size 24 free'd ==12758== at 0x140EB88DC: free (vg_replace_malloc.c:325) ==12758== by 0x1004AE00C: lst_try_interchange (graphite-poly.h:704) ==12758== by 0x1004AE49F: lst_do_interchange_1 (graphite-interchange.c:710) ==12758== by 0x1004AE525: lst_do_interchange (graphite-interchange.c:730) ==12758== by 0x1004AE58A: lst_do_interchange (graphite-interchange.c:734) ==12758== by 0x1004AE5CA: scop_do_interchange (graphite-interchange.c:748) ==12758== by 0x1004AF4C7: apply_poly_transforms (graphite-poly.c:260) ==12758== by 0x1004A01A1: graphite_transform_loops (graphite.c:276) ==12758== by 0x100736B09: graphite_transforms (tree-ssa-loop.c:300) ==12758== by 0x10057D522: execute_one_pass (passes.c:1522) ==12758== by 0x10057D7CC: execute_pass_list (passes.c:1577) ==12758== by 0x10057D7DE: execute_pass_list (passes.c:1578) ==12758== ==12758== Invalid read of size 8 ==12758== at 0x1004AE534: lst_do_interchange (graphite-interchange.c:732) ==12758== by 0x1004AE58A: lst_do_interchange (graphite-interchange.c:734) ==12758== by 0x1004AE5CA: scop_do_interchange (graphite-interchange.c:748) ==12758== by 0x1004AF4C7: apply_poly_transforms (graphite-poly.c:260) ==12758== by 0x1004A01A1: graphite_transform_loops (graphite.c:276) ==12758== by 0x100736B09: graphite_transforms (tree-ssa-loop.c:300) ==12758== by 0x10057D522: execute_one_pass (passes.c:1522) ==12758== by 0x10057D7CC: execute_pass_list (passes.c:1577) ==12758== by 0x10057D7DE: execute_pass_list (passes.c:1578) ==12758== by 0x10057D7DE: execute_pass_list (passes.c:1578) ==12758== by 0x1006AAA80: tree_rest_of_compilation (tree-optimize.c:408) ==12758== by 0x100866F56: cgraph_expand_function (cgraphunit.c:1178) ==12758== Address 0x141c25210 is 16 bytes inside a block of size 24 free'd ==12758== at 0x140EB88DC: free (vg_replace_malloc.c:325) ==12758== by 0x1004AE00C: lst_try_interchange (graphite-poly.h:704) ==12758== by 0x1004AE49F: lst_do_interchange_1 (graphite-interchange.c:710) ==12758== by 0x1004AE525: lst_do_interchange (graphite-interchange.c:730) ==12758== by 0x1004AE58A: lst_do_interchange (graphite-interchange.c:734) ==12758== by 0x1004AE5CA: scop_do_interchange (graphite-interchange.c:748) ==12758== by 0x1004AF4C7: apply_poly_transforms (graphite-poly.c:260) ==12758== by 0x1004A01A1: graphite_transform_loops (graphite.c:276) ==12758== by 0x100736B09: graphite_transforms (tree-ssa-loop.c:300) ==12758== by 0x10057D522: execute_one_pass (passes.c:1522) ==12758== by 0x10057D7CC: execute_pass_list (passes.c:1577) ==12758== by 0x10057D7DE: execute_pass_list (passes.c:1578) -- Summary: Segmentation fault with graphite -floop-interchange Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: astrange at ithinksw dot com GCC build triplet: x86_64-apple-darwin10.2.0 GCC host triplet: x86_64-apple-darwin10.2.0 GCC target triplet: x86_64-apple-darwin10.2.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42211
