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authorConnor Abbott <[email protected]>2015-07-21 19:54:21 -0700
committerKenneth Graunke <[email protected]>2015-08-24 13:31:41 -0700
commit13482111d0dd9649d4b14ed05df344d5a2cea3de (patch)
tree53de7d05e7e5823455cbe7a358e4e93f8410477a /src/glsl/nir
parentf41e108d8bdd360caedd1497dc676c928c7f18a3 (diff)
nir/cf: add remove_phi_src() helper
Signed-off-by: Connor Abbott <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/glsl/nir')
-rw-r--r--src/glsl/nir/nir_control_flow.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_control_flow.c b/src/glsl/nir/nir_control_flow.c
index bb94652757b..bf25813e8f1 100644
--- a/src/glsl/nir/nir_control_flow.c
+++ b/src/glsl/nir/nir_control_flow.c
@@ -373,6 +373,23 @@ nir_handle_add_jump(nir_block *block)
}
}
+static void
+remove_phi_src(nir_block *block, nir_block *pred)
+{
+ nir_foreach_instr(block, instr) {
+ if (instr->type != nir_instr_type_phi)
+ break;
+
+ nir_phi_instr *phi = nir_instr_as_phi(instr);
+ nir_foreach_phi_src_safe(phi, src) {
+ if (src->pred == pred) {
+ list_del(&src->src.use_link);
+ exec_node_remove(&src->node);
+ }
+ }
+ }
+}
+
void
nir_handle_remove_jump(nir_block *block, nir_jump_type type)
{