| #include <libgccjit.h> |
| #include "harness.h" |
| |
| struct my_struct { long a; long b; long c; }; |
| |
| void create_code (gcc_jit_context *ctxt, void *user_data) |
| { |
| /* Create the equivalent of: |
| struct my_struct { long a; long b; long c; }; |
| static struct my_struct deref(struct my_struct *ptr) { return *ptr; } |
| long get_a(struct my_struct *s) { return deref(s).a; } |
| and compile it at -O1. */ |
| gcc_jit_context_set_int_option(ctxt, GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL, 1); |
| |
| gcc_jit_type *long_type = gcc_jit_context_get_type(ctxt, GCC_JIT_TYPE_LONG); |
| gcc_jit_field* fields[3] = { |
| gcc_jit_context_new_field(ctxt, NULL, long_type, "a"), |
| gcc_jit_context_new_field(ctxt, NULL, long_type, "b"), |
| gcc_jit_context_new_field(ctxt, NULL, long_type, "c"), |
| }; |
| gcc_jit_struct *my_struct = |
| gcc_jit_context_new_struct_type(ctxt, NULL, "my_struct", 3, fields); |
| gcc_jit_type *my_struct_type = gcc_jit_struct_as_type(my_struct); |
| gcc_jit_type *my_struct_ptr_type = gcc_jit_type_get_pointer(my_struct_type); |
| |
| /* struct my_struct deref(struct my_struct *ptr) { return *ptr; } */ |
| gcc_jit_param *param_deref = |
| gcc_jit_context_new_param(ctxt, NULL, my_struct_ptr_type, "ptr"); |
| gcc_jit_function *func_deref = gcc_jit_context_new_function( |
| ctxt, NULL, GCC_JIT_FUNCTION_INTERNAL, |
| my_struct_type, "deref", |
| 1, ¶m_deref, |
| 0); |
| gcc_jit_block *blockDeref = gcc_jit_function_new_block(func_deref, NULL); |
| gcc_jit_block_end_with_return( |
| blockDeref, NULL, |
| gcc_jit_lvalue_as_rvalue(gcc_jit_rvalue_dereference(gcc_jit_param_as_rvalue(param_deref), NULL))); |
| |
| /* long get_a(struct my_struct *s) { return deref(s).a; } */ |
| gcc_jit_param *param_get_a = gcc_jit_context_new_param(ctxt, NULL, my_struct_ptr_type, "s"); |
| gcc_jit_function *func_get_a = gcc_jit_context_new_function( |
| ctxt, NULL, GCC_JIT_FUNCTION_EXPORTED, |
| long_type, "get_a", |
| 1, ¶m_get_a, |
| 0); |
| gcc_jit_block *block_get_a = gcc_jit_function_new_block(func_get_a, NULL); |
| gcc_jit_rvalue *argsForDeref[1] = {gcc_jit_param_as_rvalue(param_get_a)}; |
| gcc_jit_rvalue *callDeref = gcc_jit_context_new_call(ctxt, NULL, func_deref, 1, argsForDeref); |
| gcc_jit_block_end_with_return( |
| block_get_a, NULL, |
| gcc_jit_rvalue_access_field(callDeref, NULL, fields[0])); |
| } |
| |
| void |
| verify_code (gcc_jit_context *ctxt, gcc_jit_result *result) |
| { |
| typedef long(*fn_type) (struct my_struct*); |
| fn_type get_a = (fn_type) gcc_jit_result_get_code(result, "get_a"); |
| |
| struct my_struct s = {1, 2, 3}; |
| CHECK_VALUE (get_a(&s), 1); |
| } |