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| author | Aldy Hernandez <aldyh@redhat.com> | 2021-09-22 09:34:15 +0200 |
|---|---|---|
| committer | Aldy Hernandez <aldyh@redhat.com> | 2021-09-22 13:28:08 +0200 |
| commit | 7e5e44bd1729b7a9b458d512ddf61bfba5031869 (patch) | |
| tree | 467be1ab1d3f12fbf1f32a2018a2e186ddf6ff92 /gcc/tree-ssa-loop-niter.c | |
| parent | 6b0e0b29c639451dd8e2234907b68806e51019c7 (diff) | |
| download | gcc-7e5e44bd1729b7a9b458d512ddf61bfba5031869.zip gcc-7e5e44bd1729b7a9b458d512ddf61bfba5031869.tar.gz gcc-7e5e44bd1729b7a9b458d512ddf61bfba5031869.tar.bz2 | |
path solver: Use range_on_path_entry instead of looking at equivalences.
Cycling through equivalences to improve a range is nowhere near as
efficient as asking the ranger what the range on entry is.
Testing on a hybrid VRP threader, shows that this improves our VRP
threading benefit from 14.5% to 18.5% and our overall jump threads from
0.85% to 1.28%.
Tested on x86-64 Linux.
gcc/ChangeLog:
* gimple-range-path.cc (path_range_query::internal_range_of_expr):
Remove call to improve_range_with_equivs.
(path_range_query::improve_range_with_equivs): Remove
* gimple-range-path.h: Remove improve_range_with_equivs.
Diffstat (limited to 'gcc/tree-ssa-loop-niter.c')
0 files changed, 0 insertions, 0 deletions