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-rw-r--r--gcc/tree-phinodes.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-phinodes.c b/gcc/tree-phinodes.c
index e4fc904fd4a..8a8454c1c1c 100644
--- a/gcc/tree-phinodes.c
+++ b/gcc/tree-phinodes.c
@@ -280,6 +280,7 @@ resize_phi_node (tree *phi, int len)
{
PHI_ARG_DEF (new_phi, i) = NULL_TREE;
PHI_ARG_EDGE (new_phi, i) = NULL;
+ PHI_ARG_NONZERO (new_phi, i) = false;
}
*phi = new_phi;
@@ -366,6 +367,7 @@ add_phi_arg (tree *phi, tree def, edge e)
PHI_ARG_DEF (*phi, i) = def;
PHI_ARG_EDGE (*phi, i) = e;
+ PHI_ARG_NONZERO (*phi, i) = false;
PHI_NUM_ARGS (*phi)++;
}
@@ -408,11 +410,13 @@ remove_phi_arg_num (tree phi, int i)
{
PHI_ARG_DEF (phi, i) = PHI_ARG_DEF (phi, num_elem - 1);
PHI_ARG_EDGE (phi, i) = PHI_ARG_EDGE (phi, num_elem - 1);
+ PHI_ARG_NONZERO (phi, i) = PHI_ARG_NONZERO (phi, num_elem - 1);
}
/* Shrink the vector and return. */
PHI_ARG_DEF (phi, num_elem - 1) = NULL_TREE;
PHI_ARG_EDGE (phi, num_elem - 1) = NULL;
+ PHI_ARG_NONZERO (phi, num_elem - 1) = false;
PHI_NUM_ARGS (phi)--;
/* If we removed the last PHI argument, then go ahead and