diff options
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index b2f068a..1023acf 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -5979,6 +5979,21 @@ pt_solution_empty_p (struct pt_solution *pt) return true; } +/* Return true if the points-to solution *PT only point to a single var, and + return the var uid in *UID. */ + +bool +pt_solution_singleton_p (struct pt_solution *pt, unsigned *uid) +{ + if (pt->anything || pt->nonlocal || pt->escaped || pt->ipa_escaped + || pt->null || pt->vars == NULL + || !bitmap_single_bit_set_p (pt->vars)) + return false; + + *uid = bitmap_first_set_bit (pt->vars); + return true; +} + /* Return true if the points-to solution *PT includes global memory. */ bool |