2004-11-02 Kazu Hirata <kazu@cs.umass.edu>
+ * tree-phinodes.c (add_phi_arg): Add an assertion that the
+ edge already exists.
+
+2004-11-02 Kazu Hirata <kazu@cs.umass.edu>
+
* tree-phinodes.c (remove_phi_arg_num): Do not zero the
element that's being removed.
void
add_phi_arg (tree *phi, tree def, edge e)
{
+ basic_block bb = e->dest;
int i = PHI_NUM_ARGS (*phi);
+ gcc_assert (bb == bb_for_stmt (*phi));
+
if (i >= PHI_ARG_CAPACITY (*phi))
{
tree old_phi = *phi;
- basic_block bb;
/* Resize the phi. Unfortunately, this will relocate it. */
resize_phi_node (phi, ideal_phi_node_len (i + 4));
/* The result of the phi is defined by this phi node. */
SSA_NAME_DEF_STMT (PHI_RESULT (*phi)) = *phi;
- /* Extract the basic block for the PHI from the PHI's annotation
- rather than the edge. This works better as the edge's
- destination may not currently be the block with the PHI node
- if we are in the process of threading the edge to a new
- destination. */
- bb = bb_for_stmt (*phi);
-
release_phi_node (old_phi);
/* Update the list head if replacing the first listed phi. */