+static LLVMValueRef
+load_gs_input(struct nir_to_llvm_context *ctx,
+ nir_intrinsic_instr *instr)
+{
+ LLVMValueRef indir_index, vtx_offset;
+ unsigned const_index;
+ LLVMValueRef args[9];
+ unsigned param, vtx_offset_param;
+ LLVMValueRef value[4], result;
+ unsigned vertex_index;
+ radv_get_deref_offset(ctx, &instr->variables[0]->deref,
+ false, &vertex_index,
+ &const_index, &indir_index);
+ vtx_offset_param = vertex_index;
+ assert(vtx_offset_param < 6);
+ vtx_offset = LLVMBuildMul(ctx->builder, ctx->gs_vtx_offset[vtx_offset_param],
+ LLVMConstInt(ctx->i32, 4, false), "");
+
+ for (unsigned i = 0; i < instr->num_components; i++) {
+ param = shader_io_get_unique_index(instr->variables[0]->var->data.location);
+ args[0] = ctx->esgs_ring;
+ args[1] = vtx_offset;
+ args[2] = LLVMConstInt(ctx->i32, (param * 4 + i) * 256, false);
+ args[3] = ctx->i32zero;
+ args[4] = ctx->i32one; /* OFFEN */
+ args[5] = ctx->i32zero; /* IDXEN */
+ args[6] = ctx->i32one; /* GLC */
+ args[7] = ctx->i32zero; /* SLC */
+ args[8] = ctx->i32zero; /* TFE */
+
+ value[i] = ac_emit_llvm_intrinsic(&ctx->ac, "llvm.SI.buffer.load.dword.i32.i32",
+ ctx->i32, args, 9, AC_FUNC_ATTR_READONLY);
+ }
+ result = ac_build_gather_values(&ctx->ac, value, instr->num_components);
+
+ return result;
+}
+