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| author | jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-08-07 11:13:54 +0000 |
|---|---|---|
| committer | jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-08-07 11:13:54 +0000 |
| commit | 90b3057739e3ecef3cfb8fe0732ada4c407f788b (patch) | |
| tree | ef73e08c581a7b17aa02f7f5b1d52c00bd9101c1 /gcc/alias.c | |
| parent | 564061e741bd6431d9214d506cfbbf676d3f4404 (diff) | |
| download | gcc-90b3057739e3ecef3cfb8fe0732ada4c407f788b.tar.gz | |
* alias.c (get_alias_set): Return a previously calculated
alias set for a VAR_DECL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@44683 138bc75d-0d04-0410-961f-82ee72b054a4
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 e7417183c21..a529a01cfa6 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) |