+2007-02-14 Richard Henderson <rth@redhat.com>
+
+ * tree-sra.c (early_sra): New.
+ (decl_can_be_decomposed_p): Deny va_list if early_sra.
+ (tree_sra_early, pass_sra_early): New.
+ * tree-pass.h (pass_sra_early): Declare.
+ * passes.c (init_optimization_passes): Use it.
+
2007-02-14 Richard Guenther <rguenther@suse.de>
* flags.h (issue_strict_overflow_warning): Convert to a macro.
NEXT_PASS (pass_rename_ssa_copies);
NEXT_PASS (pass_ccp);
NEXT_PASS (pass_forwprop);
- NEXT_PASS (pass_sra);
+ NEXT_PASS (pass_sra_early);
NEXT_PASS (pass_copy_prop);
NEXT_PASS (pass_merge_phi);
NEXT_PASS (pass_dce);
extern struct tree_opt_pass pass_cleanup_cfg;
extern struct tree_opt_pass pass_referenced_vars;
extern struct tree_opt_pass pass_sra;
+extern struct tree_opt_pass pass_sra_early;
extern struct tree_opt_pass pass_tail_recursion;
extern struct tree_opt_pass pass_tail_calls;
extern struct tree_opt_pass pass_tree_loop;
*/
+/* True if this is the "early" pass, before inlining. */
+static bool early_sra;
+
/* The set of todo flags to return from tree_sra. */
static unsigned int todoflags;
return false;
}
+ /* HACK: if we decompose a va_list_type_node before inlining, then we'll
+ confuse tree-stdarg.c, and we won't be able to figure out which and
+ how many arguments are accessed. This really should be improved in
+ tree-stdarg.c, as the decomposition is truely a win. This could also
+ be fixed if the stdarg pass ran early, but this can't be done until
+ we've aliasing information early too. See PR 30791. */
+ if (early_sra
+ && TYPE_MAIN_VARIANT (TREE_TYPE (var))
+ == TYPE_MAIN_VARIANT (va_list_type_node))
+ return false;
+
return true;
}
return todoflags;
}
+static unsigned int
+tree_sra_early (void)
+{
+ unsigned int ret;
+
+ early_sra = true;
+ ret = tree_sra ();
+ early_sra = false;
+
+ return ret;
+}
+
static bool
gate_sra (void)
{
return flag_tree_sra != 0;
}
+struct tree_opt_pass pass_sra_early =
+{
+ "esra", /* name */
+ gate_sra, /* gate */
+ tree_sra_early, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ TV_TREE_SRA, /* tv_id */
+ PROP_cfg | PROP_ssa, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ TODO_dump_func
+ | TODO_update_ssa
+ | TODO_ggc_collect
+ | TODO_verify_ssa, /* todo_flags_finish */
+ 0 /* letter */
+};
+
struct tree_opt_pass pass_sra =
{
"sra", /* name */