diff options
Diffstat (limited to 'gcc/ada/trans.c')
| -rw-r--r-- | gcc/ada/trans.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/gcc/ada/trans.c b/gcc/ada/trans.c index 2fafd48de8e..68ebacc735c 100644 --- a/gcc/ada/trans.c +++ b/gcc/ada/trans.c @@ -21,7 +21,7 @@ * MA 02111-1307, USA. * * * * GNAT was originally developed by the GNAT team at New York University. * - * It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). * + * Extensive contributions were provided by Ada Core Technologies Inc. * * * ****************************************************************************/ @@ -88,6 +88,10 @@ tree gnu_block_stack; handler. Not used in the zero-cost case. */ static GTY(()) tree gnu_except_ptr_stack; +/* List of TREE_LIST nodes containing pending elaborations lists. + used to prevent the elaborations being reclaimed by GC. */ +static GTY(()) tree gnu_pending_elaboration_lists; + /* Map GNAT tree codes to GCC tree codes for simple expressions. */ static enum tree_code gnu_codes[Number_Node_Kinds]; @@ -576,11 +580,13 @@ tree_transform (gnat_node) gigi_abort (336); else - gnu_result - = build_real (gnu_result_type, - REAL_VALUE_LDEXP - (TREE_REAL_CST (gnu_result), - - UI_To_Int (Denominator (ur_realval)))); + { + REAL_VALUE_TYPE tmp; + + real_ldexp (&tmp, &TREE_REAL_CST (gnu_result), + - UI_To_Int (Denominator (ur_realval))); + gnu_result = build_real (gnu_result_type, tmp); + } } /* Now see if we need to negate the result. Do it this way to @@ -5296,6 +5302,10 @@ build_unit_elab (gnat_unit, body_p, gnu_elab_list) if (gnu_elab_list == 0) return 1; + /* Prevent the elaboration list from being reclaimed by the GC. */ + gnu_pending_elaboration_lists = chainon (gnu_pending_elaboration_lists, + gnu_elab_list); + /* Set our file and line number to that of the object and set up the elaboration routine. */ gnu_decl = create_subprog_decl (create_concat_name (gnat_unit, @@ -5356,6 +5366,9 @@ build_unit_elab (gnat_unit, body_p, gnu_elab_list) gnu_block_stack = TREE_CHAIN (gnu_block_stack); end_subprog_body (); + /* We are finished with the elaboration list it can now be discarded. */ + gnu_pending_elaboration_lists = TREE_CHAIN (gnu_pending_elaboration_lists); + /* If there were no insns, we don't need an elab routine. It would be nice to not output this one, but there's no good way to do that. */ return result; |