diff options
Diffstat (limited to 'gcc/tree-ssa-dse.cc')
| -rw-r--r-- | gcc/tree-ssa-dse.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/tree-ssa-dse.cc b/gcc/tree-ssa-dse.cc index 47997df..2b22a61 100644 --- a/gcc/tree-ssa-dse.cc +++ b/gcc/tree-ssa-dse.cc @@ -44,6 +44,7 @@ along with GCC; see the file COPYING3. If not see #include "ipa-modref-tree.h" #include "ipa-modref.h" #include "target.h" +#include "tree-ssa-loop-niter.h" /* This file implements dead store elimination. @@ -1418,6 +1419,8 @@ unsigned int pass_dse::execute (function *fun) { unsigned todo = 0; + bool released_def = false; + need_eh_cleanup = BITMAP_ALLOC (NULL); need_ab_cleanup = BITMAP_ALLOC (NULL); auto_sbitmap live_bytes (param_dse_max_object_size); @@ -1460,6 +1463,7 @@ pass_dse::execute (function *fun) if (gsi_remove (&gsi, true) && need_eh_cleanup) bitmap_set_bit (need_eh_cleanup, bb->index); release_defs (stmt); + released_def = true; } } if (gsi_end_p (gsi)) @@ -1481,6 +1485,7 @@ pass_dse::execute (function *fun) } remove_phi_node (&si, true); removed_phi = true; + released_def = true; } else gsi_next (&si); @@ -1506,6 +1511,9 @@ pass_dse::execute (function *fun) BITMAP_FREE (need_eh_cleanup); BITMAP_FREE (need_ab_cleanup); + if (released_def) + free_numbers_of_iterations_estimates (fun); + return todo; } |