diff options
| author | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-01 12:15:08 +0000 |
|---|---|---|
| committer | ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-09-01 12:15:08 +0000 |
| commit | 9ec012cbf249e8c00c4fa51358dfafe07159c36b (patch) | |
| tree | 2007e1650009708b5fc84ff70fa3d964c0926435 /gcc/gimplify.c | |
| parent | 0591727a9d083d76618d8a57926932e63b0434d3 (diff) | |
| download | gcc-9ec012cbf249e8c00c4fa51358dfafe07159c36b.tar.gz | |
* gimplify.c (gimplify_init_constructor): Do not create a temporary for
a volatile LHS if the constructor has only one element.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163727 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/gimplify.c')
| -rw-r--r-- | gcc/gimplify.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c index 52d83f656fb..b0468c6856b 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -3824,11 +3824,12 @@ gimplify_init_constructor (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p, } } - /* If the target is volatile and we have non-zero elements - initialize the target from a temporary. */ + /* If the target is volatile, we have non-zero elements and more than + one field to assign, initialize the target from a temporary. */ if (TREE_THIS_VOLATILE (object) && !TREE_ADDRESSABLE (type) - && num_nonzero_elements > 0) + && num_nonzero_elements > 0 + && VEC_length (constructor_elt, elts) > 1) { tree temp = create_tmp_var (TYPE_MAIN_VARIANT (type), NULL); TREE_OPERAND (*expr_p, 0) = temp; |