File: ssa-fre-15.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 (29 lines) | stat: -rw-r--r-- 588 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
 
/* { dg-do compile } */
/* { dg-options "-O -fno-tree-sra -fdump-tree-fre1-details" } */

/* Should be optimized, propagating &a into (*p)[i].  */

struct Foo
{
  void *data;
  double size;
};
void bar(double *);
void foo(double (*q)[4])
{
  struct Foo tmp1;
  double a[4];
  int i;
  tmp1.data = &a;
  for (i=0; i<4; ++i)
    {
      double (*p)[4] = tmp1.data;
      (*p)[i] = (*q)[i];
      /* We want a PHI for the VOP for accessing tmp1.data, so place
 	 this store to tmp1 here.  */
      tmp1.size -= 1.0;
    }
  bar(a);
}

/* { dg-final { scan-tree-dump "Replaced" "fre1" } } */