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-rw-r--r--src/compiler/nir/nir_repair_ssa.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/compiler/nir/nir_repair_ssa.c b/src/compiler/nir/nir_repair_ssa.c
index f182818374d..b6ec1038843 100644
--- a/src/compiler/nir/nir_repair_ssa.c
+++ b/src/compiler/nir/nir_repair_ssa.c
@@ -71,7 +71,8 @@ repair_ssa_def(nir_ssa_def *def, void *void_state)
bool is_valid = true;
nir_foreach_use(src, def) {
- if (!nir_block_dominates(def->parent_instr->block, get_src_block(src))) {
+ if (nir_block_is_unreachable(get_src_block(src)) ||
+ !nir_block_dominates(def->parent_instr->block, get_src_block(src))) {
is_valid = false;
break;
}
@@ -80,7 +81,8 @@ repair_ssa_def(nir_ssa_def *def, void *void_state)
nir_foreach_if_use(src, def) {
nir_block *block_before_if =
nir_cf_node_as_block(nir_cf_node_prev(&src->parent_if->cf_node));
- if (!nir_block_dominates(def->parent_instr->block, block_before_if)) {
+ if (nir_block_is_unreachable(block_before_if) ||
+ !nir_block_dominates(def->parent_instr->block, block_before_if)) {
is_valid = false;
break;
}
@@ -101,7 +103,8 @@ repair_ssa_def(nir_ssa_def *def, void *void_state)
nir_foreach_use_safe(src, def) {
nir_block *src_block = get_src_block(src);
- if (!nir_block_dominates(def->parent_instr->block, src_block)) {
+ if (nir_block_is_unreachable(src_block) ||
+ !nir_block_dominates(def->parent_instr->block, src_block)) {
nir_instr_rewrite_src(src->parent_instr, src, nir_src_for_ssa(
nir_phi_builder_value_get_block_def(val, src_block)));
}
@@ -110,7 +113,8 @@ repair_ssa_def(nir_ssa_def *def, void *void_state)
nir_foreach_if_use_safe(src, def) {
nir_block *block_before_if =
nir_cf_node_as_block(nir_cf_node_prev(&src->parent_if->cf_node));
- if (!nir_block_dominates(def->parent_instr->block, block_before_if)) {
+ if (nir_block_is_unreachable(block_before_if) ||
+ !nir_block_dominates(def->parent_instr->block, block_before_if)) {
nir_if_rewrite_condition(src->parent_if, nir_src_for_ssa(
nir_phi_builder_value_get_block_def(val, block_before_if)));
}