diff options
Diffstat (limited to 'gcc/c-semantics.c')
| -rw-r--r-- | gcc/c-semantics.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/gcc/c-semantics.c b/gcc/c-semantics.c index 4bab4d3aaa6..682943f17c2 100644 --- a/gcc/c-semantics.c +++ b/gcc/c-semantics.c @@ -60,6 +60,7 @@ begin_stmt_tree (t) *t = build_nt (EXPR_STMT, void_zero_node); last_tree = *t; last_expr_type = NULL_TREE; + last_expr_filename = input_filename; } /* T is a statement. Add it to the statement-tree. */ @@ -68,6 +69,19 @@ tree add_stmt (t) tree t; { + if (input_filename != last_expr_filename) + { + /* If the filename has changed, also add in a FILE_STMT. Do a string + compare first, though, as it might be an equivalent string. */ + int add = (strcmp (input_filename, last_expr_filename) != 0); + last_expr_filename = input_filename; + if (add) + { + tree pos = build_nt (FILE_STMT, get_identifier (input_filename)); + add_stmt (pos); + } + } + /* Add T to the statement-tree. */ TREE_CHAIN (last_tree) = t; last_tree = t; @@ -760,6 +774,10 @@ expand_stmt (t) switch (TREE_CODE (t)) { + case FILE_STMT: + input_filename = FILE_STMT_FILENAME (t); + break; + case RETURN_STMT: genrtl_return_stmt (t); break; @@ -845,4 +863,3 @@ expand_stmt (t) t = TREE_CHAIN (t); } } - |