gcc/testsuite/gcc.target/arm/thumb2-slow-flash-data.c

   1 /* The option -mslow-flash-data is just for performance tuning, it
   2    doesn't totally disable the use of literal pools.  But for below
   3    simple cases, the use of literal pool should be replaced by
   4    movw/movt or read-only constant pool.  */
   5
   6 /* { dg-do compile } */
   7 /* { dg-require-effective-target arm_cortex_m } */
   8 /* { dg-require-effective-target arm_thumb2_ok } */
   9 /* { dg-options "-O2 -mthumb -mslow-flash-data" } */
  10
  11 float sf;
  12 double df;
  13 long long l;
  14 static char *p = "Hello World";
  15
  16 float
  17 testsf (float *p)
  18 {
  19   if (*p > 1.1234f)
  20     return 2.1234f;
  21   else
  22     return 3.1234f;
  23 }
  24
  25 double
  26 testdf (double *p)
  27 {
  28   if (*p > 4.1234)
  29     return 2.1234;
  30   else
  31     return 3.1234;
  32 }
  33
  34 long long
  35 testll (long long *p)
  36 {
  37   if (*p > 0x123456789ABCDEFll)
  38     return 0x111111111ll;
  39   else
  40     return 0x222222222ll;
  41 }
  42
  43 char *
  44 testchar ()
  45 {
  46   return p + 4;
  47 }
  48
  49 int
  50 foo (int a, int b)
  51 {
  52   int i;
  53   volatile int *labelref = &&label1;
  54
  55   if (a > b)
  56     {
  57       while (i < b)
  58         {
  59           a += *labelref;
  60           i += 1;
  61         }
  62       goto *labelref;
  63     }
  64   else
  65     b = b + 3;
  66
  67   a = a * b;
  68
  69 label1:
  70   return a + b;
  71 }
  72
  73 /* { dg-final { scan-assembler-not "\\.(float|l\\?double|\d?byte|short|int|long|quad|word)\\s+\[^.\]" } } */