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| author | Andrew MacLeod <amacleod@redhat.com> | 2021-05-31 12:13:50 -0400 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2021-05-31 20:51:18 -0400 |
| commit | 715914d3f9e4e40af58d22103c7650cdd720ef92 (patch) | |
| tree | aa53320abfc1b1ae61ae8ec3da4fce4e91f146f9 /gcc/gimple-range-cache.h | |
| parent | 2e0f3246e0bd92643ce36b9e7b9dde91650ac02a (diff) | |
| download | gcc-715914d3f9e4e40af58d22103c7650cdd720ef92.zip gcc-715914d3f9e4e40af58d22103c7650cdd720ef92.tar.gz gcc-715914d3f9e4e40af58d22103c7650cdd720ef92.tar.bz2 | |
Do not calculate new values when evaluating a debug statement.
Add a flag to enable/disable immediately improving poor values found during
cache propagation. Then disable it when processing debug statements.
gcc/
PR tree-optimization/100781
* gimple-range-cache.cc (ranger_cache::ranger_cache): Enable new
value calculation by default.
(ranger_cache::enable_new_values): New.
(ranger_cache::disable_new_values): New.
(ranger_cache::push_poor_value): Check if new values are allowed.
* gimple-range-cache.h (class ranger_cache): New member/methods.
* gimple-range.cc (gimple_ranger::range_of_expr): Check for debug
statement, and disable/renable new value calculation.
gcc/testsuite/
PR tree-optimization/100781
* gcc.dg/pr100781.c: New.
Diffstat (limited to 'gcc/gimple-range-cache.h')
| -rw-r--r-- | gcc/gimple-range-cache.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/gimple-range-cache.h b/gcc/gimple-range-cache.h index fee69bc..4af461d 100644 --- a/gcc/gimple-range-cache.h +++ b/gcc/gimple-range-cache.h @@ -100,6 +100,8 @@ public: bool get_non_stale_global_range (irange &r, tree name); void set_global_range (tree name, const irange &r); + void enable_new_values (); + void disable_new_values (); non_null_ref m_non_null; gori_compute m_gori; @@ -131,6 +133,7 @@ private: bool push_poor_value (basic_block bb, tree name); vec<update_record> m_poor_value_list; class gimple_ranger &query; + bool m_new_value_p; }; #endif // GCC_SSA_RANGE_CACHE_H |