diff options
Diffstat (limited to 'gcc/gimple.c')
| -rw-r--r-- | gcc/gimple.c | 40 |
1 files changed, 4 insertions, 36 deletions
diff --git a/gcc/gimple.c b/gcc/gimple.c index bf8cc07e490..12ff7f63995 100644 --- a/gcc/gimple.c +++ b/gcc/gimple.c @@ -2275,8 +2275,6 @@ gimple_set_modified (gimple s, bool modifiedp) bool gimple_has_side_effects (const_gimple s) { - unsigned i; - if (is_gimple_debug (s)) return false; @@ -2292,45 +2290,15 @@ gimple_has_side_effects (const_gimple s) if (is_gimple_call (s)) { - unsigned nargs = gimple_call_num_args (s); + int flags = gimple_call_flags (s); - if (!(gimple_call_flags (s) & (ECF_CONST | ECF_PURE))) - return true; - else if (gimple_call_flags (s) & ECF_LOOPING_CONST_OR_PURE) - /* An infinite loop is considered a side effect. */ + /* An infinite loop is considered a side effect. */ + if (!(flags & (ECF_CONST | ECF_PURE)) + || (flags & ECF_LOOPING_CONST_OR_PURE)) return true; - if (gimple_call_lhs (s) - && TREE_SIDE_EFFECTS (gimple_call_lhs (s))) - { - gcc_checking_assert (gimple_has_volatile_ops (s)); - return true; - } - - if (TREE_SIDE_EFFECTS (gimple_call_fn (s))) - return true; - - for (i = 0; i < nargs; i++) - if (TREE_SIDE_EFFECTS (gimple_call_arg (s, i))) - { - gcc_checking_assert (gimple_has_volatile_ops (s)); - return true; - } - return false; } - else - { - for (i = 0; i < gimple_num_ops (s); i++) - { - tree op = gimple_op (s, i); - if (op && TREE_SIDE_EFFECTS (op)) - { - gcc_checking_assert (gimple_has_volatile_ops (s)); - return true; - } - } - } return false; } |