blob: 39add724e89be15e603d9667d88d76fdbc3770d3 (
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
31
32
33
34
35
36
|
/* { dg-do compile } */
/* { dg-options "-O2 -funsafe-math-optimizations -ftrapping-math -fdump-tree-recip -fdump-tree-lim" } */
/* { dg-warning "-fassociative-math disabled" "" { target *-*-* } 1 } */
double F[2] = { 0., 0. }, e = 0.;
int main()
{
int i;
double E, W, P, d;
/* make sure the program crashes on FP exception */
unsigned short int Mask;
W = 1.;
d = 2.*e;
E = 1. - d;
for( i=0; i < 2; i++ )
if( d > 0.01 )
{
P = ( W < E ) ? (W - E)/d : (E - W)/d;
F[i] += P;
}
return 0;
}
/* LIM only performs the transformation in the no-trapping-math case. In
the future we will do it for trapping-math as well in recip, check that
this is not wrongly optimized. */
/* { dg-final { scan-tree-dump-not "reciptmp" "lim1" } } */
/* { dg-final { scan-tree-dump-not "reciptmp" "recip" } } */
/* { dg-final { cleanup-tree-dump "recip" } } */
/* { dg-final { cleanup-tree-dump "lim\[1-2\]" } } */
|