1  /* { dg-do compile { target x86_64-*-* } } */
       2  
       3  #include <stdlib.h>
       4  #include <stdio.h>
       5  
       6  #include "libgccjit.h"
       7  
       8  /* We don't want set_options() in harness.h to set -O3 so our little local
       9     is optimized away. */
      10  #define TEST_ESCHEWS_SET_OPTIONS
      11  static void set_options (gcc_jit_context *ctxt, const char *argv0)
      12  {
      13  }
      14  
      15  #define TEST_COMPILING_TO_FILE
      16  #define OUTPUT_KIND      GCC_JIT_OUTPUT_KIND_ASSEMBLER
      17  #define OUTPUT_FILENAME  "output-of-test-setting-alignment.c.s"
      18  #include "harness.h"
      19  
      20  void
      21  create_code (gcc_jit_context *ctxt, void *user_data)
      22  {
      23    /* Let's try to inject the equivalent of:
      24       int foo __attribute__((aligned (8)));
      25  
      26       int main (void) {
      27          int bar __attribute__((aligned (16)));
      28       }
      29    */
      30    gcc_jit_type *int_type =
      31      gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
      32    gcc_jit_lvalue *foo =
      33      gcc_jit_context_new_global (
      34        ctxt, NULL, GCC_JIT_GLOBAL_EXPORTED, int_type, "foo");
      35    gcc_jit_lvalue_set_alignment(foo, 8);
      36  
      37    gcc_jit_field *field = gcc_jit_context_new_field (ctxt,
      38      NULL,
      39      int_type,
      40      "a");
      41    gcc_jit_struct *struct_type =
      42      gcc_jit_context_new_struct_type(ctxt, NULL, "Type", 1, &field);
      43    gcc_jit_function *func_main =
      44      gcc_jit_context_new_function (ctxt, NULL,
      45  				  GCC_JIT_FUNCTION_EXPORTED,
      46  				  int_type,
      47  				  "main",
      48  				  0, NULL,
      49  				  0);
      50    gcc_jit_lvalue *bar =
      51      gcc_jit_function_new_local (
      52        func_main, NULL,
      53        gcc_jit_struct_as_type (struct_type),
      54        "bar");
      55    CHECK_VALUE (gcc_jit_lvalue_get_alignment (bar), 0);
      56    gcc_jit_lvalue_set_alignment (bar, 16);
      57    CHECK_VALUE (gcc_jit_lvalue_get_alignment (bar), 16);
      58    gcc_jit_block *block = gcc_jit_function_new_block (func_main, NULL);
      59    gcc_jit_rvalue *return_value =
      60        gcc_jit_lvalue_as_rvalue (gcc_jit_lvalue_access_field (bar, NULL, field));
      61    gcc_jit_block_end_with_return (block, NULL, return_value);
      62  }
      63  
      64  /* { dg-final { jit-verify-output-file-was-created "" } } */
      65  /* { dg-final { jit-verify-assembler-output ".comm	foo,4,8" } } */
      66  /* { dg-final { jit-verify-assembler-output "movl	-16\\\(%rbp\\\), %eax" } } */