gcc/testsuite/gcc.target/sh/pr50751-8.c

   1 /* Check that on SH2A the 4 byte movu.b and movu.w displacement insns are
   2    generated.  This has to be checked with -O2 because some of the patterns
   3    rely on peepholes.  */
   4 /* { dg-do compile { target { sh2a } } }  */
   5 /* { dg-options "-O2" } */
   6 /* { dg-final { scan-assembler-times "movu.b" 4 } } */
   7 /* { dg-final { scan-assembler-times "movu.w" 3 } } */
   8
   9 int
  10 test_00 (unsigned char* x)
  11 {
  12   /* 1x movu.b  */
  13   return x[0];
  14 }
  15
  16 int
  17 test_01 (unsigned short* x)
  18 {
  19   /* 1x movu.w  */
  20   return x[0];
  21 }
  22
  23 int
  24 test_02 (unsigned char* x)
  25 {
  26   /* 1x movu.b  */
  27   return x[1];
  28 }
  29
  30 int
  31 test_03 (unsigned char* x)
  32 {
  33   /* 1x movu.b  */
  34   return x[32];
  35 }
  36
  37 int
  38 test_04 (unsigned char* x)
  39 {
  40   /* 1x movu.b  */
  41   return x[9000];
  42 }
  43
  44 int
  45 test_05 (unsigned short* x)
  46 {
  47   /* 1x movu.w  */
  48   return x[9000];
  49 }
  50
  51 int
  52 test_06 (unsigned char* x, int i)
  53 {
  54   /* No movu.b expected here.  Should use mov.b (r0,r4) + extu.b instead.  */
  55   return x[i];
  56 }
  57
  58 int
  59 test_07 (unsigned short* x, int i)
  60 {
  61   /* No movu.w expected here.  Should use mov.w (r0,r4) + extu.w instead.  */
  62   return x[i];
  63 }
  64
  65 int
  66 test_08 (unsigned char* x, int c)
  67 {
  68   /* No movu.b expected here.  Should use post-inc addressing instead.  */
  69   int s = 0;
  70   int i;
  71   for (i = 0; i < c; ++i)
  72     s += x[i];
  73   return s;
  74 }
  75
  76 void
  77 test_09 (unsigned char* x, unsigned char* y)
  78 {
  79   /* No movu.b expected here, since the zero-extension is irrelevant.  */
  80   x[1] = y[1];
  81   x[2] = y[2];
  82 }
  83
  84 void
  85 test_10 (unsigned char* x, unsigned short* y)
  86 {
  87   /* No movu.w expected here, since the zero-extension is irrelevant.  */
  88   x[1] = y[1];
  89   x[2] = y[2];
  90 }
  91
  92 int
  93 test_11 (unsigned char* x, unsigned short* y)
  94 {
  95   /* 1x movu.w  */
  96   int yy = y[1];
  97   x[1] = yy;
  98   return yy;
  99 }