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 | |
| 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
| -rw-r--r-- | gcc/ChangeLog | 17 | ||||
| -rw-r--r-- | gcc/gimplify.c | 7 |
2 files changed, 15 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ca67d7fc74f..fd03ae7f518 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,11 +1,16 @@ +2010-09-01 Eric Botcazou <ebotcazou@adacore.com> + + * gimplify.c (gimplify_init_constructor): Do not create a temporary for + a volatile LHS if the constructor has only one element. + 2010-09-01 Mikael Pettersson <mikpe@it.uu.se> - PR bootstrap/45321 - * tree.c (stdarg_p): Make fntype parameter const. - * tree.h (stdarg_p): Likewise. - (function_args_iterator): Remove unused fntype field. - (function_args_iter_init): Do not initialize fntype - field. Make fntype parameter const. + PR bootstrap/45321 + * tree.c (stdarg_p): Make fntype parameter const. + * tree.h (stdarg_p): Likewise. + (function_args_iterator): Remove unused fntype field. + (function_args_iter_init): Do not initialize fntype + field. Make fntype parameter const. 2010-09-01 Richard Guenther <rguenther@suse.de> 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; |