File: cunroll-15.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (23 lines) | stat: -rw-r--r-- 768 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
/* { dg-do compile } */
/* { dg-options "-O2 -funroll-loops -fdump-tree-cunroll-optimized -fdump-tree-optimized" } */

int Test(void)
{
  int c = 0;
  const int in[4] = {4,3,4,4};
  for (unsigned i = 0; i < 4; i++) {
      for (unsigned j = 0; j < i; j++) {
	  if (in[i] == in[j])
	    break;
	  else 
	    ++c;
      }
  }
  return c;
}

/* { dg-final { scan-tree-dump-times "note:\[^\n\r\]*completely unrolled" 2 "cunroll" } } */
/* When SLP vectorization is enabled the following will fail because DOM
   doesn't know how to deal with the vectorized initializer of in.  */
/* DOM also doesn't know to CSE in[1] with in = *.LC0 thus the list of targets this fails.  */
/* { dg-final { scan-tree-dump "return 1;" "optimized" { xfail { arm*-*-* powerpc-*-* } } } } */