File: update-unroll-1.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 (19 lines) | stat: -rw-r--r-- 488 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
/* { dg-do compile { target { i?86-*-* x86_64-*-* } } } */
/* { dg-options "-O1 -fprefetch-loop-arrays -march=amdfam10 -fdump-tree-aprefetch-blocks-details" } */

int a[10000];

int foo(unsigned n)
{
  unsigned i, s = 0;

  for (i = 0; i < n; i++)
    s += a[i];

  return s;
}

/* We used to make the probability that the body of the loop (unrolled
   to enable prefetching) is entered 0, which is not correct.  */

/* { dg-final { scan-tree-dump-not "SUCC: 7 .100.0%" "aprefetch"} } */