gcc/testsuite/gcc.target/nios2/cdx-loadstore.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -march=r2 -mcdx" } */
   3
   4 /* Check generation of R2 CDX load/store instructions.  */
   5
   6 unsigned char ldb (unsigned char *p)
   7 {
   8   return p[7];
   9 }
  10
  11 unsigned short ldh (unsigned short *p)
  12 {
  13   return p[7];
  14 }
  15
  16 unsigned int ldw (unsigned int *p)
  17 {
  18   return p[7];
  19 }
  20
  21 void stb (unsigned char *p, unsigned char x)
  22 {
  23   p[15] = x;
  24 }
  25
  26 void sth (unsigned short *p, unsigned short x)
  27 {
  28   p[15] = x;
  29 }
  30
  31 void stw (unsigned int *p, unsigned int x)
  32 {
  33   p[15] = x;
  34 }
  35
  36 void no_cdx_stb (unsigned char *p, unsigned char x)
  37 {
  38   p[16] = x;
  39 }
  40
  41 void no_cdx_sth (unsigned short *p, unsigned short x)
  42 {
  43   p[16] = x;
  44 }
  45
  46 void no_cdx_stw (unsigned int *p, unsigned int x)
  47 {
  48   p[16] = x;
  49 }
  50
  51 /* { dg-final { scan-assembler "\tldbu\\.n\t.*, 7\\(.*\\)" } } */
  52 /* { dg-final { scan-assembler "\tldhu\\.n\t.*, 14\\(.*\\)" } } */
  53 /* { dg-final { scan-assembler "\tldw\\.n\t.*, 28\\(.*\\)" } } */
  54
  55 /* { dg-final { scan-assembler "\tstb\\.n\t.*, 15\\(.*\\)" } } */
  56 /* { dg-final { scan-assembler "\tsth\\.n\t.*, 30\\(.*\\)" } } */
  57 /* { dg-final { scan-assembler "\tstw\\.n\t.*, 60\\(.*\\)" } } */
  58
  59 /* { dg-final { scan-assembler "\tstb\t.*, 16\\(.*\\)" } } */
  60 /* { dg-final { scan-assembler "\tsth\t.*, 32\\(.*\\)" } } */
  61 /* { dg-final { scan-assembler "\tstw\t.*, 64\\(.*\\)" } } */