broadcom/compiler: dump instruction index when failing to pack instructions

Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9918>

src/broadcom/compiler/vir_to_qpu.c

@@ -419,7 +419,7 @@ v3d_vir_to_qpu(struct v3d_compile *c, struct qpu_reg *temp_registers)
                 bool ok = v3d_qpu_instr_pack(c->devinfo, &inst->qpu,
                                              &c->qpu_insts[i++]);
                 if (!ok) {
-                        fprintf(stderr, "Failed to pack instruction:\n");
+                        fprintf(stderr, "Failed to pack instruction %d:\n", i);
                         vir_dump_inst(c, inst);
                         fprintf(stderr, "\n");
                         c->compilation_result = V3D_COMPILATION_FAILED;