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-skip-if "" { "sh*-*-*" } { "-m5*"} { "" } }  */
   6 /* { dg-final { scan-assembler-times "tst\tr" 8 } }  */
   7 /* { dg-final { scan-assembler-times "mov.b" 4 } }  */
   8 /* { dg-final { scan-assembler-times "mov.w" 4 } }  */
   9 /* { dg-final { scan-assembler-times "extu.b" 4 } }  */
  10 /* { dg-final { scan-assembler-times "extu.w" 2 } }  */
  11
  12 int
  13 test_00 (char* x, char* y)
  14 {
  15   /* 2x mov.b (sign extending)  */
  16   return *x & *y ? -40 : 60;
  17 }
  18
  19 int
  20 test_01 (short* x, short* y)
  21 {
  22   /* 2x mov.w (sign extending)  */
  23   return *x & *y ? -40 : 60;
  24 }
  25
  26 int
  27 test_02 (char x, char y)
  28 {
  29   /* 1x extu.b  */
  30   return x & y ? -40 : 60;
  31 }
  32
  33 int
  34 test_03 (short x, short y)
  35 {
  36   /* 1x extu.w  */
  37   return x & y ? -40 : 60;
  38 }
  39
  40 int
  41 test_04 (char* x, unsigned char y)
  42 {
  43   /* 1x mov.b, 1x extu.b  */
  44   return *x & y ? -40 : 60;
  45 }
  46
  47 int
  48 test_05 (short* x, unsigned char y)
  49 {
  50   /* 1x mov.w, 1x extu.b  */
  51   return *x & y ? -40 : 60;
  52 }
  53
  54 int
  55 test_06 (short x, short* y, int z, int w)
  56 {
  57   /* 1x mov.w, 1x extu.w  */
  58   return x & y[0] ? z : w;
  59 }
  60
  61 int
  62 test_07 (char x, char* y, int z, int w)
  63 {
  64   /* 1x mov.b, 1x extu.b  */
  65   return x & y[0] ? z : w;
  66 }