gcc-4.9/gcc/testsuite/gcc.target/arm/tlscall.c


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/* Test non-duplication of tlscall insn */

/* { dg-do assemble } */
/* { dg-options "-O2 -fPIC -mtls-dialect=gnu2" } */

typedef struct _IO_FILE FILE;

extern int foo(void);
extern int bar(void);

void uuid__generate_time()
{
 static int has_init = 0;
 static __thread int state_fd = -2;
 static __thread FILE *state_f;

 if (!has_init) {
   foo();
   has_init = 1;
 }

 if (state_fd == -2) {
  if (!state_f) {
   state_fd = -1;
  }
 }
 if (state_fd >= 0) {
  while (bar() < 0) {}
 }

}