diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gcc/tree.c b/gcc/tree.c index 4c3f52bd7b7..9e463c04872 100644 --- a/gcc/tree.c +++ b/gcc/tree.c @@ -152,6 +152,9 @@ static const char * const tree_node_kind_names[] = { static GTY(()) int next_decl_uid; /* Unique id for next type created. */ static GTY(()) int next_type_uid = 1; +/* Unique id for next debug decl created. Use negative numbers, + to catch erroneous uses. */ +static GTY(()) int next_debug_decl_uid; /* Since we cannot rehash a type after it is in the table, we have to keep the hash code. */ @@ -872,7 +875,10 @@ make_node_stat (enum tree_code code MEM_STAT_DECL) DECL_ALIGN (t) = 1; } DECL_SOURCE_LOCATION (t) = input_location; - DECL_UID (t) = next_decl_uid++; + if (TREE_CODE (t) == DEBUG_EXPR_DECL) + DECL_UID (t) = --next_debug_decl_uid; + else + DECL_UID (t) = next_decl_uid++; if (TREE_CODE (t) == LABEL_DECL) LABEL_DECL_UID (t) = -1; @@ -948,7 +954,10 @@ copy_node_stat (tree node MEM_STAT_DECL) if (TREE_CODE_CLASS (code) == tcc_declaration) { - DECL_UID (t) = next_decl_uid++; + if (code == DEBUG_EXPR_DECL) + DECL_UID (t) = --next_debug_decl_uid; + else + DECL_UID (t) = next_decl_uid++; if ((TREE_CODE (node) == PARM_DECL || TREE_CODE (node) == VAR_DECL) && DECL_HAS_VALUE_EXPR_P (node)) { |