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tree-ssa.c (verify_flow_sensitive_alias_info): Don't retrieve annotations or pointer info before it's necessary. 

* tree-ssa.c (verify_flow_sensitive_alias_info): Don't
        retrieve annotations or pointer info before it's necessary.
        Reorder tests for early continue of the loop.  Manually CSE
        SSA_NAME_VAR.

From-SVN: r91347
This commit is contained in:
Jeff Law 2004-11-26 13:18:34 -07:00 committed by Jeff Law
parent e54c747181
commit b5c3569b07
2 changed files with 14 additions and 4 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-11-26 Jeff Law <law@redhat.com>
* tree-ssa.c (verify_flow_sensitive_alias_info): Don't
retrieve annotations or pointer info before it's necessary.
Reorder tests for early continue of the loop. Manually CSE
SSA_NAME_VAR.
2004-11-26 Eric Botcazou <ebotcazou@libertysurf.fr>
* target.h (struct gcc_target): New field 'dwarf_handle_frame_unspec'.

11
gcc/tree-ssa.c
View File

@ -404,31 +404,34 @@ verify_flow_sensitive_alias_info (void)
for (i = 1; i < num_ssa_names; i++)
{
tree var;
var_ann_t ann;
struct ptr_info_def *pi;
ptr = ssa_name (i);
if (!ptr)
continue;
ann = var_ann (SSA_NAME_VAR (ptr));
pi = SSA_NAME_PTR_INFO (ptr);
/* We only care for pointers that are actually referenced in the
program. */
if (!TREE_VISITED (ptr) || !POINTER_TYPE_P (TREE_TYPE (ptr)))
if (!POINTER_TYPE_P (TREE_TYPE (ptr)) || !TREE_VISITED (ptr))
continue;
/* RESULT_DECL is special. If it's a GIMPLE register, then it
is only written-to only once in the return statement.
Otherwise, aggregate RESULT_DECLs may be written-to more than
once in virtual operands. */
if (TREE_CODE (SSA_NAME_VAR (ptr)) == RESULT_DECL
var = SSA_NAME_VAR (ptr);
if (TREE_CODE (var) == RESULT_DECL
&& is_gimple_reg (ptr))
continue;
pi = SSA_NAME_PTR_INFO (ptr);
if (pi == NULL)
continue;
ann = var_ann (var);
if (pi->is_dereferenced && !pi->name_mem_tag && !ann->type_mem_tag)
{
error ("Dereferenced pointers should have a name or a type tag");