aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.dg/fold-div-1.c
blob: 533908c300cd06f5b14873109fd7e768e62481d6 (plain)
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
/* { dg-do compile } */
/* { dg-options "-funsafe-math-optimizations -fdump-tree-gimple" } */

float f(float x)
{
  return x/2 + x/3;
}

float g(float x)
{
  return 2/x + 3/x;
}

float h(float x)
{
  return x/2 - x/3;
}

float i(float x)
{
  return 2/x - 3/x;
}

/* f and h should be turned into multiplications,
   the divisions in g and i should be grouped together.  */

/* { dg-final { scan-tree-dump-times " \\* " 2 "gimple" } } */
/* { dg-final { scan-tree-dump-times " / " 2 "gimple" } } */
/* { dg-final { cleanup-tree-dump "gimple" } } */