Signed-off-by: Jason Ekstrand <[email protected]>
---
src/compiler/nir/nir_opt_dead_cf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/compiler/nir/nir_opt_dead_cf.c
b/src/compiler/nir/nir_opt_dead_cf.c
index 3551124..1490e68 100644
--- a/src/compiler/nir/nir_opt_dead_cf.c
+++ b/src/compiler/nir/nir_opt_dead_cf.c
@@ -205,7 +205,8 @@ loop_is_dead(nir_loop *loop)
nir_metadata_require(impl, nir_metadata_live_ssa_defs |
nir_metadata_dominance);
- for (nir_block *cur = after->imm_dom; cur != before; cur = cur->imm_dom) {
+ for (nir_block *cur = after->imm_dom; cur && cur != before;
+ cur = cur->imm_dom) {
nir_foreach_instr(instr, cur) {
if (!nir_foreach_ssa_def(instr, def_not_live_out, after))
return false;
--
2.5.0.400.gff86faf
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