gcc/testsuite/jit.dg/test-tls.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <time.h>
   5
   6 #include "libgccjit.h"
   7
   8 #include "harness.h"
   9
  10 void
  11 create_code (gcc_jit_context *ctxt, void *user_data)
  12 {
  13   /* Let's try to inject the equivalent of:
  14
  15      _Thread_local int foo;
  16
  17      int test_using_tls()
  18      {
  19       foo = 42;
  20       return foo;
  21      }
  22   */
  23   gcc_jit_type *int_type =
  24     gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
  25
  26   gcc_jit_lvalue *foo =
  27     gcc_jit_context_new_global (
  28       ctxt, NULL, GCC_JIT_GLOBAL_EXPORTED, int_type, "foo");
  29   gcc_jit_lvalue_set_tls_model (foo, GCC_JIT_TLS_MODEL_GLOBAL_DYNAMIC);
  30
  31   /* Build the test_fn.  */
  32   gcc_jit_function *test_fn =
  33     gcc_jit_context_new_function (ctxt, NULL,
  34                                   GCC_JIT_FUNCTION_EXPORTED,
  35                                   int_type,
  36                                   "test_using_tls",
  37                                   0, NULL,
  38                                   0);
  39   gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
  40   gcc_jit_block_add_assignment (
  41     block, NULL,
  42     foo,
  43     gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 42));
  44   gcc_jit_block_end_with_return (block,
  45                                  NULL,
  46                                  gcc_jit_lvalue_as_rvalue (foo));
  47 }
  48
  49 void
  50 verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
  51 {
  52   typedef int (*fn_type) (void);
  53   CHECK_NON_NULL (result);
  54
  55   fn_type test_using_tls =
  56     (fn_type)gcc_jit_result_get_code (result, "test_using_tls");
  57   CHECK_NON_NULL (test_using_tls);
  58   int return_value = test_using_tls();
  59   CHECK_VALUE (return_value, 42);
  60
  61   int *foo = (int *)gcc_jit_result_get_global (result, "foo");
  62   CHECK_NON_NULL (foo);
  63   CHECK_VALUE (*foo, 42);
  64 }