diff options
| author | Jason Merrill <jason@redhat.com> | 2001-08-07 07:13:54 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@gcc.gnu.org> | 2001-08-07 07:13:54 -0400 |
| commit | 1b81b7891b82b0d5bbb5ff760423f3d6ad3c701e (patch) | |
| tree | ef73e08c581a7b17aa02f7f5b1d52c00bd9101c1 /gcc/alias.c | |
| parent | e13ef1e287aa2116c30d849b4de3d12313322ccc (diff) | |
| download | gcc-1b81b7891b82b0d5bbb5ff760423f3d6ad3c701e.zip gcc-1b81b7891b82b0d5bbb5ff760423f3d6ad3c701e.tar.gz gcc-1b81b7891b82b0d5bbb5ff760423f3d6ad3c701e.tar.bz2 | |
alias.c (get_alias_set): Return a previously calculated alias set for a VAR_DECL.
* alias.c (get_alias_set): Return a previously calculated
alias set for a VAR_DECL.
From-SVN: r44683
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index e741718..a529a01 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -527,6 +527,13 @@ get_alias_set (t) return 0; } + /* If we've already determined the alias set for this decl, just + return it. This is necessary for C++ anonymous unions, whose + component variables don't look like union members (boo!). */ + if (TREE_CODE (t) == VAR_DECL + && DECL_RTL_SET_P (t) && GET_CODE (DECL_RTL (t)) == MEM) + return MEM_ALIAS_SET (DECL_RTL (t)); + /* Give the language another chance to do something special. */ if (orig_t != t && (set = lang_get_alias_set (t)) != -1) |