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Diffstat (limited to 'gcc/tree-ssa-loop.c')
| -rw-r--r-- | gcc/tree-ssa-loop.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop.c b/gcc/tree-ssa-loop.c index f7a96fb..9e38e91 100644 --- a/gcc/tree-ssa-loop.c +++ b/gcc/tree-ssa-loop.c @@ -286,6 +286,31 @@ struct tree_opt_pass pass_iv_canon = 0 /* letter */ }; +/* Propagation of constants using scev. */ + +static bool +gate_scev_const_prop (void) +{ + return true; +} + +struct tree_opt_pass pass_scev_cprop = +{ + "sccp", /* name */ + gate_scev_const_prop, /* gate */ + scev_const_prop, /* execute */ + NULL, /* sub */ + NULL, /* next */ + 0, /* static_pass_number */ + TV_SCEV_CONST, /* tv_id */ + PROP_cfg | PROP_ssa, /* properties_required */ + 0, /* properties_provided */ + 0, /* properties_destroyed */ + 0, /* todo_flags_start */ + TODO_dump_func, /* todo_flags_finish */ + 0 /* letter */ +}; + /* Record bounds on numbers of iterations of loops. */ static void |