nir: Relax opt_if logic to prevent re-merging 64bit phis for loop headers

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6313>

diff --git a/src/compiler/nir/nir_opt_if.c b/src/compiler/nir/nir_opt_if.c
index a97126cb0d8a715fb351436eb18bbdc6394bafe3..8b35b167013c1f87f3e29049f3eb6d644b403412 100644 (file)
--- a/src/compiler/nir/nir_opt_if.c
+++ b/src/compiler/nir/nir_opt_if.c
@@ -292,8 +292,7 @@ static bool
 alu_instr_is_type_conversion(const nir_alu_instr *alu)
 {
    return nir_op_infos[alu->op].num_inputs == 1 &&
-          nir_alu_type_get_base_type(nir_op_infos[alu->op].output_type) !=
-          nir_alu_type_get_base_type(nir_op_infos[alu->op].input_types[0]);
+          nir_op_infos[alu->op].output_type != nir_op_infos[alu->op].input_types[0];
 }
 
 /**