Hi, I created a a few blocks using gcc_jit_function_new_block. While I have a jit function param coming in as “index”. But the “index” has a type as gcc_jit_lvalue, which cannot be consider as an integer, thus, I cannot do gcc_jit_block_end_with_jump( block, NULL, elem_block[index]. Is there a trick to do this? Here’s the code. gcc_jit_lvalue *dst_input = gcc_jit_function_new_local( func, NULL, char_ptr_ptr_type, "dst_input" ), *src_val = gcc_jit_function_new_local( func, NULL, char_ptr_type, "src_val" ), *src_loop = gcc_jit_function_new_local( func, NULL, char_ptr_type, "src_loop" ), *index_val = gcc_jit_function_new_local( func, NULL, int_ptr_type, "index_val" ), *disp_val = gcc_jit_function_new_local( func, NULL, sizet_ptr_type, "disp_val" ), *maxdata_val = gcc_jit_function_new_local( func, NULL, sizet_ptr_type, "maxdata_val" ); gcc_jit_block_add_assignment( block, NULL, dst_input, gcc_jit_param_as_rvalue( param[0] ) ); gcc_jit_block_add_assignment( block, NULL, src_val, gcc_jit_param_as_rvalue( param[1] ) ); gcc_jit_block_add_assignment( block, NULL, index_val, gcc_jit_param_as_rvalue( param[2] ) ); gcc_jit_block_add_assignment( block, NULL, disp_val, gcc_jit_param_as_rvalue( param[3] ) ); gcc_jit_block_add_assignment( block, NULL, maxdata_val, gcc_jit_param_as_rvalue( param[4] ) ); gcc_jit_lvalue *dst_val = gcc_jit_context_new_array_access( ctxt, NULL, dst_input, gcc_jit_context_new_rvalue_from_int( ctxt, int_type, 0 ) ), *index = gcc_jit_context_new_array_access( ctxt, NULL, index_val, gcc_jit_context_new_rvalue_from_int( ctxt, int_type, 0 ) ), *disp = gcc_jit_context_new_array_access( ctxt, NULL, disp_val, gcc_jit_context_new_rvalue_from_int( ctxt, int_type, 0 ) ), *maxdata = gcc_jit_context_new_array_access( ctxt, NULL, maxdata_val, gcc_jit_context_new_rvalue_from_int( ctxt, int_type, 0 ) ); gcc_jit_lvalue *count_val = gcc_jit_function_new_local( func, NULL, int_type, "elem_count" ); gcc_jit_block *elem_block[desc_used], *elem_exit_block[desc_used]; int blockn = 0, nelem = 0; for( int i = 0; i <= desc_used; i++ ){ char block_name[10]; elem_block[nelem] = gcc_jit_function_new_block( func, itoa( blockn++, block_name, 10 ) ); nelem++; } gcc_jit_block_end_with_jump( block, NULL, elem_block[index] ); The error from compiler is error: array subscript is not an integer 1183 | gcc_jit_block_end_with_jump( block, NULL, elem_block[index] ); Thank you Yicheng Li