Dead phi-nodes should be eliminated early or, even better,
never emitted.
For the moment, ignore them during IR validation since they
make the tests fail despite being no-ops.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
ir.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/ir.c b/ir.c
index 533e8e238..836d4eb24 100644
--- a/ir.c
+++ b/ir.c
@@ -29,6 +29,9 @@ static int check_phi_node(struct instruction *insn)
pseudo_t phi;
int err = 0;
+ if (!has_users(insn->target))
+ return err;
+
if (bb_list_size(insn->bb->parents) != nbr_phi_operands(insn)) {
sparse_error(insn->pos, "bad number of phi operands in:\n\t%s",
show_instruction(insn));
--
2.18.0
