From 13482111d0dd9649d4b14ed05df344d5a2cea3de Mon Sep 17 00:00:00 2001 From: Connor Abbott Date: Tue, 21 Jul 2015 19:54:21 -0700 Subject: [PATCH] nir/cf: add remove_phi_src() helper Signed-off-by: Connor Abbott Reviewed-by: Kenneth Graunke --- src/glsl/nir/nir_control_flow.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) 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) { -- 2.30.2