Viewing file:  test-setting-alignment.c (2.02 KB) -rw-r--r--
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/* { dg-do compile { target x86_64-*-* } } */
#include <stdlib.h>
#include <stdio.h>
#include "libgccjit.h"
/* We don't want set_options() in harness.h to set -O3 so our little local
is optimized away. */
#define TEST_ESCHEWS_SET_OPTIONS
static void set_options (gcc_jit_context *ctxt, const char *argv0)
{
}
#define TEST_COMPILING_TO_FILE
#define OUTPUT_KIND GCC_JIT_OUTPUT_KIND_ASSEMBLER
#define OUTPUT_FILENAME "output-of-test-setting-alignment.c.s"
#include "harness.h"
void
create_code (gcc_jit_context *ctxt, void *user_data)
{
/* Let's try to inject the equivalent of:
int foo __attribute__((aligned (8)));
int main (void) {
int bar __attribute__((aligned (16)));
}
*/
gcc_jit_type *int_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
gcc_jit_lvalue *foo =
gcc_jit_context_new_global (
ctxt, NULL, GCC_JIT_GLOBAL_EXPORTED, int_type, "foo");
gcc_jit_lvalue_set_alignment(foo, 8);
gcc_jit_field *field = gcc_jit_context_new_field (ctxt,
NULL,
int_type,
"a");
gcc_jit_struct *struct_type =
gcc_jit_context_new_struct_type(ctxt, NULL, "Type", 1, &field);
gcc_jit_function *func_main =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
int_type,
"main",
0, NULL,
0);
gcc_jit_lvalue *bar =
gcc_jit_function_new_local (
func_main, NULL,
gcc_jit_struct_as_type (struct_type),
"bar");
CHECK_VALUE (gcc_jit_lvalue_get_alignment (bar), 0);
gcc_jit_lvalue_set_alignment (bar, 16);
CHECK_VALUE (gcc_jit_lvalue_get_alignment (bar), 16);
gcc_jit_block *block = gcc_jit_function_new_block (func_main, NULL);
gcc_jit_rvalue *return_value =
gcc_jit_lvalue_as_rvalue (gcc_jit_lvalue_access_field (bar, NULL, field));
gcc_jit_block_end_with_return (block, NULL, return_value);
}
/* { dg-final { jit-verify-output-file-was-created "" } } */
/* { dg-final { jit-verify-assembler-output ".comm foo,4,8" } } */
/* { dg-final { jit-verify-assembler-output "movl -16\\\(%rbp\\\), %eax" } } */
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