diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gcc/tree.c b/gcc/tree.c index 68aa58f9619..2c6f3b855b0 100644 --- a/gcc/tree.c +++ b/gcc/tree.c @@ -307,6 +307,40 @@ decl_assembler_name (tree decl) return DECL_WITH_VIS_CHECK (decl)->decl_with_vis.assembler_name; } +/* Compare ASMNAME with the DECL_ASSEMBLER_NAME of DECL. */ + +bool +decl_assembler_name_equal (tree decl, tree asmname) +{ + tree decl_asmname = DECL_ASSEMBLER_NAME (decl); + + if (decl_asmname == asmname) + return true; + + /* If the target assembler name was set by the user, things are trickier. + We have a leading '*' to begin with. After that, it's arguable what + is the correct thing to do with -fleading-underscore. Arguably, we've + historically been doing the wrong thing in assemble_alias by always + printing the leading underscore. Since we're not changing that, make + sure user_label_prefix follows the '*' before matching. */ + if (IDENTIFIER_POINTER (decl_asmname)[0] == '*') + { + const char *decl_str = IDENTIFIER_POINTER (decl_asmname) + 1; + size_t ulp_len = strlen (user_label_prefix); + + if (ulp_len == 0) + ; + else if (strncmp (decl_str, user_label_prefix, ulp_len) == 0) + decl_str += ulp_len; + else + return false; + + return strcmp (decl_str, IDENTIFIER_POINTER (asmname)) == 0; + } + + return false; +} + /* Compute the number of bytes occupied by a tree with code CODE. This function cannot be used for TREE_VEC, PHI_NODE, or STRING_CST codes, which are of variable length. */ |