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| author | Andrew MacLeod <amacleod@redhat.com> | 2022-11-07 15:07:35 -0500 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2022-11-07 19:22:19 -0500 |
| commit | c838119946c9f75f1e42f4320275355822cc86fc (patch) | |
| tree | 2ca1a424406083b17d55461bfc69fc2a093c9d47 /gcc/gimple-range-infer.cc | |
| parent | f8d901d00e94e5a03c3321b37303eddd7c321ecb (diff) | |
| download | gcc-c838119946c9f75f1e42f4320275355822cc86fc.zip gcc-c838119946c9f75f1e42f4320275355822cc86fc.tar.gz gcc-c838119946c9f75f1e42f4320275355822cc86fc.tar.bz2 | |
Add transitive inferred range processing.
Rewalk statements at the end of a block to see if any inferred ranges
affect earlier calculations and register those as inferred ranges.
gcc/
PR tree-optimization/104530
* gimple-range-cache.cc (ranger_cache::register_inferred_value):
New. Split from:
(ranger_cache::apply_inferred_ranges): Move setting cache to
separate function.
* gimple-range-cache.h (register_inferred_value): New prototype.
* gimple-range-infer.cc (infer_range_manager::has_range_p): New.
* gimple-range-infer.h (has_range_p): New prototype.
* gimple-range.cc (register_transitive_inferred_ranges): New.
* gimple-range.h (register_transitive_inferred_ranges): New proto.
* tree-vrp.cc (rvrp_folder::fold_stmt): Check for transitive inferred
ranges at the end of the block before folding final stmt.
gcc/testsuite/
* gcc.dg/pr104530.c: New.
Diffstat (limited to 'gcc/gimple-range-infer.cc')
| -rw-r--r-- | gcc/gimple-range-infer.cc | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/gimple-range-infer.cc b/gcc/gimple-range-infer.cc index 010b34a..8714ef2 100644 --- a/gcc/gimple-range-infer.cc +++ b/gcc/gimple-range-infer.cc @@ -252,6 +252,17 @@ infer_range_manager::get_nonzero (tree name) return *(m_nonzero[v]); } +// Return TRUE if there are any range inferences in block BB. + +bool +infer_range_manager::has_range_p (basic_block bb) +{ + if (bb->index >= (int)m_on_exit.length ()) + return false; + bitmap b = m_on_exit[bb->index].m_names; + return b && !bitmap_empty_p (b); +} + // Return TRUE if NAME has a range inference in block BB. bool |