ac/nir_to_llvm: add support for structs to get_sampler_desc()

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index a2069eb..a82e021 100644 (file)
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -3282,27 +3282,34 @@ static LLVMValueRef get_sampler_desc(struct ac_nir_context *ctx,
                base_index = tex_instr->sampler_index;
        } else {
                while(deref_instr->deref_type != nir_deref_type_var) {
-                       unsigned array_size = glsl_get_aoa_size(deref_instr->type);
-                       if (!array_size)
-                               array_size = 1;
-
-                       assert(deref_instr->deref_type == nir_deref_type_array);
-                       nir_const_value *const_value = nir_src_as_const_value(deref_instr->arr.index);
-                       if (const_value) {
-                               constant_index += array_size * const_value->u32[0];
-                       } else {
-                               LLVMValueRef indirect = get_src(ctx, deref_instr->arr.index);
-
-                               indirect = LLVMBuildMul(ctx->ac.builder, indirect,
-                                       LLVMConstInt(ctx->ac.i32, array_size, false), "");
+                       if (deref_instr->deref_type == nir_deref_type_array) {
+                               unsigned array_size = glsl_get_aoa_size(deref_instr->type);
+                               if (!array_size)
+                                       array_size = 1;
+
+                               nir_const_value *const_value = nir_src_as_const_value(deref_instr->arr.index);
+                               if (const_value) {
+                                       constant_index += array_size * const_value->u32[0];
+                               } else {
+                                       LLVMValueRef indirect = get_src(ctx, deref_instr->arr.index);
+
+                                       indirect = LLVMBuildMul(ctx->ac.builder, indirect,
+                                               LLVMConstInt(ctx->ac.i32, array_size, false), "");
+
+                                       if (!index)
+                                               index = indirect;
+                                       else
+                                               index = LLVMBuildAdd(ctx->ac.builder, index, indirect, "");
+                               }
 
-                                if (!index)
-                                       index = indirect;
-                               else
-                                       index = LLVMBuildAdd(ctx->ac.builder, index, indirect, "");
+                               deref_instr = nir_src_as_deref(deref_instr->parent);
+                       } else if (deref_instr->deref_type == nir_deref_type_struct) {
+                               unsigned sidx = deref_instr->strct.index;
+                               deref_instr = nir_src_as_deref(deref_instr->parent);
+                               constant_index += glsl_get_record_location_offset(deref_instr->type, sidx);
+                       } else {
+                               unreachable("Unsupported deref type");
                        }
-
-                       deref_instr = nir_src_as_deref(deref_instr->parent);
                }
                descriptor_set = deref_instr->var->data.descriptor_set;