gcc/testsuite/gcc.target/sh/pr53988-1.c

   1 /* Check that sign/zero extensions are emitted where needed when the
   2    tst Rm,Rn instruction is used.  */
   3 /* { dg-do compile }  */
   4 /* { dg-options "-O1" }  */
   5 /* { dg-final { scan-assembler-times "tst\tr" 8 } }  */
   6 /* { dg-final { scan-assembler-times "mov.b" 4 } }  */
   7 /* { dg-final { scan-assembler-times "mov.w" 4 } }  */
   8 /* { dg-final { scan-assembler-times "extu.b" 4 } }  */
   9 /* { dg-final { scan-assembler-times "extu.w" 2 } }  */
  10
  11 int
  12 test_00 (char* x, char* y)
  13 {
  14   /* 2x mov.b (sign extending)  */
  15   return *x & *y ? -40 : 60;
  16 }
  17
  18 int
  19 test_01 (short* x, short* y)
  20 {
  21   /* 2x mov.w (sign extending)  */
  22   return *x & *y ? -40 : 60;
  23 }
  24
  25 int
  26 test_02 (char x, char y)
  27 {
  28   /* 1x extu.b  */
  29   return x & y ? -40 : 60;
  30 }
  31
  32 int
  33 test_03 (short x, short y)
  34 {
  35   /* 1x extu.w  */
  36   return x & y ? -40 : 60;
  37 }
  38
  39 int
  40 test_04 (char* x, unsigned char y)
  41 {
  42   /* 1x mov.b, 1x extu.b  */
  43   return *x & y ? -40 : 60;
  44 }
  45
  46 int
  47 test_05 (short* x, unsigned char y)
  48 {
  49   /* 1x mov.w, 1x extu.b  */
  50   return *x & y ? -40 : 60;
  51 }
  52
  53 int
  54 test_06 (short x, short* y, int z, int w)
  55 {
  56   /* 1x mov.w, 1x extu.w  */
  57   return x & y[0] ? z : w;
  58 }
  59
  60 int
  61 test_07 (char x, char* y, int z, int w)
  62 {
  63   /* 1x mov.b, 1x extu.b  */
  64   return x & y[0] ? z : w;
  65 }