gcc/testsuite/gcc.target/sh/pr54236-3.c

   1 /* Tests to check the utilization of the addc and subc instructions.
   2    If everything works as expected we won't see any movt instructions in
   3    these cases.  */
   4 /* { dg-do compile }  */
   5 /* { dg-options "-O2" } */
   6 /* { dg-final { scan-assembler-times "addc" 4 } }  */
   7 /* { dg-final { scan-assembler-times "subc" 5 } }  */
   8 /* { dg-final { scan-assembler-times "movt" 1 } }  */
   9 /* { dg-final { scan-assembler-times "sub\t" 1 } }  */
  10 /* { dg-final { scan-assembler-times "neg\t" 2 } }  */
  11
  12 int
  13 test_000 (int* x, unsigned int c)
  14 {
  15   /* 1x addc  */
  16   int s = 0;
  17   unsigned int i;
  18   for (i = 0; i < c; ++i)
  19     s += ! (x[i] & 0x3000);
  20   return s;
  21 }
  22
  23 int
  24 test_001 (int* x, unsigned int c)
  25 {
  26   /* 1x subc  */
  27   int s = 0;
  28   unsigned int i;
  29   for (i = 0; i < c; ++i)
  30     s -= ! (x[i] & 0x3000);
  31   return s;
  32 }
  33
  34 int
  35 test_002 (int a, int b, int c)
  36 {
  37   /* 1x tst, 1x subc  */
  38   return ((a & b) != 0) - c;
  39 }
  40
  41 int
  42 test_003 (int a, int b, int c)
  43 {
  44   /* 1x tst, 1x movt, 1x sub  */
  45   return ((a & b) == 0) - c;
  46 }
  47
  48 int
  49 test_004 (int a, int b, int c)
  50 {
  51   /* 1x tst, 1x addc  */
  52   return c - ((a & b) != 0);
  53 }
  54
  55 int
  56 test_005 (int a, int b, int c)
  57 {
  58   /* 1x shll, 1x subc  */
  59   int x = a < 0;
  60   return c - (b + x);
  61 }
  62
  63 int
  64 test_006 (int a, int b, int c)
  65 {
  66   /* 1x neg, 1x cmp/pl, 1x addc  */
  67   int x = a > 0;
  68   int y = b + x;
  69   return y - c;
  70 }
  71
  72 int
  73 test_007 (int a, int b, int c)
  74 {
  75   /* 1x add #-1, 1x cmp/eq, 1x addc  */
  76   int x = a != 1;
  77   int y = b - x;
  78   return c + y;
  79 }
  80
  81 int
  82 test_008 (int a, int b, int c)
  83 {
  84   /* 1x neg, 1x cmp/gt, 1x subc  */
  85   int x = a > 1;
  86   int y = b - x;
  87   return c + y;
  88 }
  89
  90 int
  91 test_009 (int a, int b, int c, int d)
  92 {
  93   /* 1x div0s, 1x subc  */
  94   return c - d - (a < 0 != b < 0);
  95 }