| /* { dg-do compile } */ |
| /* { dg-options "-O2 -funsafe-math-optimizations -ftrapping-math -fdump-tree-recip -fdump-tree-lim2" } */ |
| /* { dg-warning "'-fassociative-math' disabled" "" { target *-*-* } 0 } */ |
| |
| 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" "lim2" } } */ |
| /* { dg-final { scan-tree-dump-not "reciptmp" "recip" } } */ |
| |
