File: ldist-11.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (32 lines) | stat: -rw-r--r-- 926 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
/* { dg-do compile } */ 
/* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-all" } */

void foo (int * __restrict__ ia,
	  int * __restrict__ ib,
	  int * __restrict__ oxa,
	  int * __restrict__ oxb,
	  int * __restrict__ oya,
	  int * __restrict__ oyb)
{
  int i;
  long int mya[52];
  long int myb[52];

  for (i=0; i < 52; i++)
    {
      mya[i] = ia[i] * oxa[i] + ib[i] * oxb[i];
      myb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i];
      oya[i] = 0;
      oyb[i] = myb[i] >> 10;
    }

  /* This loop should be distributed, and the result should look like
     this:
     |  memset (oya, 0, 208);
     |  for (i=0; i < 52; i++)
     |    oyb[i] = -ia[i] * oxb[i] + ib[i] * oxa[i] >> 10;
  */
}

/* { dg-final { scan-tree-dump-times "distributed: split to 1 loops and 1 library calls" 1 "ldist" } } */
/* { dg-final { scan-tree-dump-times "generated memset zero" 1 "ldist" } } */