On 23 March 2011 21:36, Ian Lance Taylor <iant@xxxxxxxxxx> wrote: > Philip Herron <redbrain@xxxxxxxxxxx> writes: > >> In function ‘foo’: >> gpy1: internal compiler error: output_operand: invalid expression as operand >> Please submit a full bug report, >> with preprocessed source if appropriate. >> See <http://gcc.gnu.org/bugs.html> for instructions. >> >> I spent quite a while trying to trace it from when >> cgraph_finalize_compilation_unit () and it comes down to: > > You will get farther if you set a breakpoint on fancy_abort and on > internal_error and get a backtrace from that point. > >> Example of where this string code is being used is >> >> const char * c_ident = IDENTIFIER_POINTER(DECL_NAME(decl)); >> >> tree str = build_string (strlen (c_ident), c_ident); > > You can use IDENTIFIER_LENGTH rather than strlen. > >> TREE_TYPE (str) = gpy_const_char_ptr; >> tree ident = build_fold_addr_expr (str); >> >> return build_call_expr (gpy_rr_decl, 3, >> build_fold_addr_expr (decl), >> build_int_cst (integer_type_node, n), >> ident); > > You may need to put the address in a variable rather than using it > directly. I'm not sure offhand. > I just tried coping something similar to whats in c-decl.c c_make_fname_decl which sets the __FUNCTION__ at the beginning of each function and made this: tree type = build_array_type (unsigned_char_type_node, build_index_type (size_int ( IDENTIFIER_LENGTH (DECL_NAME(decl)) ))); type = build_qualified_type (type, TYPE_QUAL_CONST); tree str = build_string (IDENTIFIER_LENGTH (DECL_NAME(decl)), c_ident); TREE_TYPE (str) = type; tree ident = build_fold_addr_expr (str); tree address = build_decl (BUILTINS_LOCATION, VAR_DECL, create_tmp_var_name("C"), type); VEC(tree,gc) * retval = VEC_alloc (tree,gc,0); VEC_safe_push (tree, gc, retval, build2 (MODIFY_EXPR, type, address, ident)); VEC_safe_push (tree, gc, retval, build_call_expr (gpy_rr_decl, 3, build_fold_addr_expr (decl), build_int_cst (integer_type_node, n), address)); But i have a segv at: Program received signal SIGSEGV, Segmentation fault. useless_type_conversion_p (outer_type=0xb7ac1f60, inner_type=0xafafafaf) at ../../gcc-dev/gcc/tree-ssa.c:1222 1222 if (POINTER_TYPE_P (inner_type) (gdb) bt #0 useless_type_conversion_p (outer_type=0xb7ac1f60, inner_type=0xafafafaf) at ../../gcc-dev/gcc/tree-ssa.c:1222 #1 0x0828d4e3 in gimplify_modify_expr (expr_p=0xb7aad698, pre_p=0xbfffef44, post_p=0xbfffede0, want_value=0 '\000') at ../../gcc-dev/gcc/gimplify.c:4487 #2 0x082782f1 in gimplify_expr (expr_p=0xb7aad698, pre_p=0xbfffef44, post_p=0xbfffede0, gimple_test_f=0x8260b60 <is_gimple_stmt>, fallback=0) at ../../gcc-dev/gcc/gimplify.c:6737 #3 0x0827ffca in gimplify_stmt (stmt_p=0xb7aad698, seq_p=0xbfffef44) at ../../gcc-dev/gcc/gimplify.c:5350 #4 0x082771eb in gimplify_statement_list (expr_p=0xb7aae358, pre_p=0xbfffef44, post_p=0xbfffeeb0, gimple_test_f=0x8260b60 <is_gimple_stmt>, fallback=0) at ../../gcc-dev/gcc/gimplify.c:1439 #5 gimplify_expr (expr_p=0xb7aae358, pre_p=0xbfffef44, post_p=0xbfffeeb0, gimple_test_f=0x8260b60 <is_gimple_stmt>, fallback=0) at ../../gcc-dev/gcc/gimplify.c:7094 #6 0x0827ffca in gimplify_stmt (stmt_p=0xb7aae358, seq_p=0xbfffef44) at ../../gcc-dev/gcc/gimplify.c:5350 #7 0x082804a3 in gimplify_bind_expr (expr_p=0xb7ab3adc, pre_p=0xbffff09c) at ../../gcc-dev/gcc/gimplify.c:1172 #8 0x082783fa in gimplify_expr (expr_p=0xb7ab3adc, pre_p=0xbffff09c, post_p=0xbfffefe0, gimple_test_f=0x8260b60 <is_gimple_stmt>, fallback=0) at ../../gcc-dev/gcc/gimplify.c:6879 #9 0x0827ffca in gimplify_stmt (stmt_p=0xb7ab3adc, seq_p=0xbffff09c) at ../../gcc-dev/gcc/gimplify.c:5350 #10 0x0828e6cc in gimplify_body (body_p=0xb7ab3adc, fndecl=0xb7ab3a80, do_parms=1 '\001') at ../../gcc-dev/gcc/gimplify.c:7710 #11 0x0828ebc2 in gimplify_function_tree (fndecl=0xb7ab3a80) at ../../gcc-dev/gcc/gimplify.c:7846 #12 0x080d124d in gpy_process_functor (functor=0x8bf59d0, base_ident=0x0, context=<value optimised out>) at ../../gcc-dev/gcc/python/py-stmt.c:386 #13 0x080d0b80 in gpy_get_tree (sym=0x8bf59d0, context=0xb7aa75e8) at ../../gcc-dev/gcc/python/py-stmt.c:472 #14 0x080d21d2 in gpy_write_globals () at ../../gcc-dev/gcc/python/py-stmt.c:613 #15 0x083ac624 in compile_file (argc=14, argv=0xbffff364) at ../../gcc-dev/gcc/toplev.c:591 #16 do_compile (argc=14, argv=0xbffff364) at ../../gcc-dev/gcc/toplev.c:1900 #17 toplev_main (argc=14, argv=0xbffff364) at ../../gcc-dev/gcc/toplev.c:1963 #18 0x080c979b in main (argc=14, argv=0xbffff364) at ../../gcc-dev/gcc/main.c:36 (gdb) quit Its having problems when i try to set the tmp_var this string. Not quite sure what to try at the moment. --Phil
