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| author | Martin Liska <mliska@suse.cz> | 2017-02-17 15:36:08 +0100 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2017-02-17 14:36:08 +0000 |
| commit | c6b0d21d49a2605b2c667cec37b31140133b1fd5 (patch) | |
| tree | 2d644d831748550bdfe21bd8444f49d2c62f5768 /gcc/tree-ssa.h | |
| parent | 830afa4b0c8f2012b91c639f18a426d18aa36af2 (diff) | |
| download | gcc-c6b0d21d49a2605b2c667cec37b31140133b1fd5.zip gcc-c6b0d21d49a2605b2c667cec37b31140133b1fd5.tar.gz gcc-c6b0d21d49a2605b2c667cec37b31140133b1fd5.tar.bz2 | |
Introduce ssa_defined_default_def_p function (PR tree-optimization/79529).
2017-02-17 Martin Liska <mliska@suse.cz>
PR tree-optimization/79529
* tree-ssa-loop-unswitch.c (is_maybe_undefined): Use
ssa_defined_default_def_p to handle cases which are implicitly
defined.
* tree-ssa.c (ssa_defined_default_def_p): New function.
(ssa_undefined_value_p): Use ssa_defined_default_def_p to handle cases
which are implicitly defined.
* tree-ssa.h (ssa_defined_default_def_p): Declare.
From-SVN: r245530
Diffstat (limited to 'gcc/tree-ssa.h')
| -rw-r--r-- | gcc/tree-ssa.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-ssa.h b/gcc/tree-ssa.h index 6d16ba9..c99b5ea 100644 --- a/gcc/tree-ssa.h +++ b/gcc/tree-ssa.h @@ -50,6 +50,8 @@ extern void delete_tree_ssa (function *); extern bool tree_ssa_useless_type_conversion (tree); extern tree tree_ssa_strip_useless_type_conversions (tree); + +extern bool ssa_defined_default_def_p (tree t); extern bool ssa_undefined_value_p (tree, bool = true); extern bool gimple_uses_undefined_value_p (gimple *); extern void execute_update_addresses_taken (void); |