/* { dg-do compile } */ | |
/* { dg-options "-O -w -fdump-tree-fre1-vops" } */ | |
double foo (double) __attribute__ ((pure)); | |
double (*fp) (double) __attribute__ ((const)); | |
double f(double a) | |
{ | |
fp = foo; | |
/* Verify when propagating foo to the call we preserve its constness. */ | |
return fp (a); | |
} | |
/* { dg-final { scan-tree-dump "foo \\(a" "fre1" } } */ | |
/* { dg-final { scan-tree-dump-times "VUSE" 1 "fre1" } } */ |